Reference signal transmission method, reference signal trigger method, and communication apparatus

Abstract

Disclosed in the present application are a reference signal transmission method, a reference signal trigger method, and a communication apparatus. The reference signal transmission method comprises: receiving a first message, the first message being used for activating or deactivating a reference signal, and the reference signal being a semi-persistent reference signal of a candidate cell; and measuring the activated reference signal on the basis of the first message, or stopping measuring the deactivated reference signal on the basis of the first message. Using the present application can save transmission resources. The reference signal trigger method comprises: receiving a first message, the first message being used for triggering a reference signal, and the reference signal being an aperiodic reference signal of a candidate cell; and, on the basis of the first message, measuring the reference signal.

Description

Reference signal transmission method, reference signal triggering method and communication device

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 202411365231.2, filed on September 27, 2024, entitled “Reference signal transmission method and communication device” and Chinese Patent Application No. 202411365233.1, filed on September 27, 2024, entitled “Reference signal triggering method and communication device”, which are incorporated by reference herein in their entirety. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, in particular to a reference signal transmission method, a reference signal triggering method and a communication device. BACKGROUND

[0004] A Layer 1 / Layer 2 Triggered Mobility (LTM) mechanism is introduced in a communication system. The basic process of the LTM mechanism is that a network device configures a plurality of candidate cells to be measured and a reference signal of each candidate cell in the plurality of candidate cells. A terminal device receives and measures the reference signals of the candidate cells, and determines at least one reference signal that meets a reporting condition. The terminal device sends an LTM beam report to the network device, which can include an identifier of a candidate cell in which the reference signal that meets the reporting condition is located, and can also include a beam identifier corresponding to the reference signal in the candidate cell that meets the reporting condition. The network device determines a target cell and a target beam to switch to according to the LTM report, so as to instruct the target cell and the target beam to be switched to through a cell handover command.

[0005] However, the reference signals of the candidate cells for the terminal device to measure at present are all periodically transmitted reference signals, which need to be periodically transmitted all the time and occupy more transmission resources. SUMMARY

[0006] Embodiments of the present application provide a reference signal transmission method and a communication device, which can activate or deactivate the semi-persistent reference signal of the candidate cell, and the terminal device can measure the semi-persistent reference signal of the candidate cell, thereby saving transmission resources.

[0007] Embodiments of the present application provide a reference signal transmission method, which comprises:

[0008] receiving a first message, the first message being used to activate or deactivate a reference signal, the reference signal being a semi-persistent reference signal of a candidate cell;

[0009] measure the activated reference signal according to the first message, or stop measuring the deactivated reference signal according to the first message.

[0010] The method of the first aspect can activate or deactivate the semi-persistent reference signal of the candidate cell through the first message, flexibly control the transmission or stop of the transmission of the semi-persistent reference signal of the candidate cell, and enable the terminal device to measure the semi-persistent reference signal activated by the candidate cell. Since the semi-persistent reference signal does not need to be periodically transmitted like the periodic reference signal, transmission resources can be saved.

[0011] In a possible implementation, the first message includes first indication information, and the first indication information is used to determine the activated or deactivated reference signal.

[0012] This way can flexibly indicate the reference signal that needs to be activated or deactivated.

[0013] In a possible implementation, the first indication information indicates at least one of the following: an identity of a report configuration, an identity of a candidate cell set, an identity of a candidate cell, an identity of a reference signal resource configuration, an identity of a reference signal resource set, an identity of a reference signal resource list, or an identity of a reference signal resource.

[0014] The reference signal determined based on the identity of the report configuration is a reference signal configured in a reference signal resource configuration associated with the report configuration, and the report configuration is used to configure the reporting of the measurement result of the reference signal.

[0015] The reference signal determined based on the identity of the candidate cell set is a reference signal configured in a candidate cell included in the candidate cell set.

[0016] The reference signal determined based on the identity of the candidate cell is a reference signal configured in the candidate cell.

[0017] The reference signal determined based on the identity of the reference signal resource configuration is a reference signal configured in the reference signal resource configuration.

[0018] The reference signal determined based on the identity of the reference signal resource set is a reference signal on a reference signal resource included in the reference signal resource set.

[0019] The reference signal determined based on the identity of the reference signal resource list is a reference signal on a reference signal resource included in the reference signal resource list.

[0020] The reference signal determined based on the identity of the reference signal resource is a reference signal carried by the reference signal resource.

[0021] By implementing the method, the reference signal of the candidate cell that needs to be activated or deactivated can be flexibly indicated.

[0022] In a possible implementation, the first message comprises second indication information, and the second indication information indicates a TCI state identifier corresponding to the activated reference signal.

[0023] By implementing the method, the beam information corresponding to the activated reference signal can be flexibly indicated.

[0024] In a possible implementation, the first message further comprises at least one indication field, and the at least one indication field is used to indicate that the reference signal is activated or deactivated.

[0025] By implementing the method, the reference signal of the candidate cell that needs to be activated or deactivated can be flexibly indicated.

[0026] In a possible implementation, the number of the indication fields is a plurality.

[0027] The first message is used to activate or deactivate the reference signals of a plurality of candidate cells, and each indication field in the plurality of indication fields indicates that the reference signal of one candidate cell in the plurality of candidate cells is activated or deactivated; or,

[0028] The first message is used to activate or deactivate the reference signals configured in a plurality of reference signal resource configurations, and each indication field in the plurality of indication fields indicates that the reference signal configured in one reference signal resource configuration in the plurality of reference signal resource configurations is activated or deactivated; or,

[0029] The first message is used to activate or deactivate the reference signals in a plurality of reference signal resource sets, and each indication field in the plurality of indication fields indicates that the reference signal in one reference signal resource set in the plurality of reference signal resource sets is activated or deactivated; or,

[0030] The first message is used to activate or deactivate the reference signals on a plurality of reference signal resources, and each indication field in the plurality of indication fields indicates that the reference signal on one reference signal resource in the plurality of reference signal resources is activated or deactivated.

[0031] By implementing the method, the reference signal can be indicated to be activated or deactivated in various granularities, and the indication manner is more flexible.

[0032] In a possible implementation, the candidate cell where the activated reference signal is located is activated, and the reference signal of the activated candidate cell is measured by the terminal device.

[0033] Or, the candidate cell where the deactivated reference signal is located is deactivated, wherein the reference signal of the deactivated candidate cell is not measured by the terminal device,

[0034] The terminal device is a device receiving the first message.

[0035] Implementing this mode, the activation or deactivation of the candidate cell where the reference signal is located can be controlled by activating or deactivating the reference signal, so that the candidate cell not to be measured can be deactivated in time, the terminal device will not measure the reference signal on the deactivated candidate cell, and the measurement overhead is reduced.

[0036] In a possible implementation, the first message is used to activate or deactivate the reference signal of at least one candidate cell, the at least one candidate cell includes a first candidate cell, and the activated or deactivated reference signal of the first candidate cell includes a first reference signal;

[0037] The measurement of the activated reference signal according to the first message, or the stop of the measurement of the deactivated reference signal according to the first message, includes:

[0038] According to the first message, the measurement of the activated first reference signal starts from a first time unit after a second time unit, or according to the first message, the stop of the measurement of the deactivated first reference signal starts from a first time unit after a second time unit;

[0039] The first time unit is a time unit determined by shifting X time units after the second time unit, the value of X is determined based on a first subcarrier spacing, the first subcarrier spacing is determined based on a subcarrier spacing of the at least one candidate cell and / or a subcarrier spacing of a serving cell, and the value of X is greater than 0.

[0040] The second time unit is a time unit for transmitting hybrid automatic repeat request-acknowledgement (HARQ-ACK) information corresponding to the first message.

[0041] Implementing this mode, the determination rule of the effective time unit (i.e., the time unit of starting transmission or stopping transmission) of the activated or deactivated reference signal is proposed, so that the effective time determined by the network device and the terminal device is consistent.

[0042] In a possible implementation, the value of X is determined based on the first subcarrier spacing, including:

[0043] The value of X is determined based on the value of N, the value of N is determined based on the first subcarrier spacing, the value of N is the number of time units contained in one subframe, one subframe includes at least one time unit, and the value of N is greater than 0.

[0044] Implementing this mode, the value of N is determined based on the subcarrier spacing, and then the value of X is determined based on the value of N, which can improve the accuracy of the determined value of X.

[0045] In a possible implementation, the first subcarrier spacing is determined based on the subcarrier spacing of the at least one candidate cell and / or the subcarrier spacing of the serving cell, including:

[0046] The first subcarrier spacing is the subcarrier spacing of the first candidate cell; or,

[0047] The first subcarrier spacing is the minimum subcarrier spacing in the subcarrier spacing of the at least one candidate cell; or,

[0048] The first subcarrier spacing is the maximum subcarrier spacing in the subcarrier spacing of the at least one candidate cell; or,

[0049] The first subcarrier spacing is the subcarrier spacing of the serving cell; or,

[0050] The first subcarrier spacing is the minimum subcarrier spacing in the subcarrier spacing of the at least one candidate cell and the subcarrier spacing of the serving cell; or,

[0051] The first subcarrier spacing is the maximum subcarrier spacing in the subcarrier spacing of the at least one candidate cell and the subcarrier spacing of the serving cell; or,

[0052] The first subcarrier spacing is the maximum subcarrier spacing in the subcarrier spacing of the first candidate cell and the subcarrier spacing of the serving cell; or,

[0053] The first subcarrier spacing is the minimum subcarrier spacing in the subcarrier spacing of the first candidate cell and the subcarrier spacing of the serving cell.

[0054] Implementing this mode, the determination mode of the first subcarrier spacing is proposed, thereby facilitating the consistency of the value of X determined by the network device and the terminal device, i.e., facilitating the consistency of the effective time unit of the activated reference signal or the deactivated reference signal determined by the network device and the terminal device.

[0055] In a possible implementation, the value of X is determined based on the value of N, including:

[0056] The value of the X is determined based on the value of the N and an amplification factor, the amplification factor indicating an amplification multiple of the value of the N, and the amplification factor is a value greater than 3.

[0057] In this way, the amplification multiple of the value of the N is greater than 3, so as to reserve sufficient time for the terminal device to adjust the radio frequency parameter to measure the reference signal of the candidate cell.

[0058] In a possible implementation, the value of the X is determined based on the value of the N, and includes:

[0059] The value of the X is determined based on the value of the N and an increment value, the increment value being a predefined or network-configured number of time units that need to be increased.

[0060] In this way, the number of time units can be additionally increased based on the increment value, so as to reserve sufficient time for the terminal device to adjust the radio frequency parameter to measure the reference signal of the candidate cell.

[0061] Embodiments of the present application also provide a reference signal transmission method, and the method includes:

[0062] The first message is used to activate or deactivate a reference signal, and the reference signal is a semi-persistent reference signal of a candidate cell.

[0063] In a possible implementation, the first message includes first indication information, and the first indication information is used to determine the activated or deactivated reference signal.

[0064] In a possible implementation, the first indication information indicates at least one of the following: an identity of a report configuration, an identity of a candidate cell set, an identity of a candidate cell, an identity of a reference signal resource configuration, an identity of a reference signal resource set, an identity of a reference signal resource list, or an identity of a reference signal resource.

[0065] The report configuration is used to configure the reporting of the measurement result of the reference signal, and the reference signal is a reference signal configured in a reference signal resource configuration associated with the report configuration;

[0066] The reference signal determined based on the identity of the report configuration is a reference signal configured in a reference signal resource configuration associated with the report configuration, and the report configuration is used to configure the reporting of the measurement result of the reference signal;

[0067] The reference signal determined based on the identity of the candidate cell set is a reference signal configured in a candidate cell included in the candidate cell set.

[0068] The reference signal determined based on the identification of the candidate cell is a reference signal configured in the candidate cell;

[0069] The reference signal determined based on the identification of the reference signal resource configuration is a reference signal configured by the reference signal resource configuration;

[0070] The reference signal determined based on the identification of the reference signal resource set is a reference signal on a reference signal resource included in the reference signal resource set;

[0071] The reference signal determined based on the identification of the reference signal resource list is a reference signal on a reference signal resource included in the reference signal resource list;

[0072] The reference signal determined based on the identification of the reference signal resource is a reference signal carried by the reference signal resource.

[0073] In a possible implementation, the first message includes second indication information, and the second indication information indicates a TCI state identification corresponding to the activated reference signal.

[0074] In a possible implementation, the first message further includes at least one indication field, and the at least one indication field is used to indicate that the reference signal is activated or deactivated.

[0075] In a possible implementation, the number of indication fields is a plurality;

[0076] The first message is used to activate or deactivate reference signals of a plurality of candidate cells, and each indication field in a plurality of indication fields indicates that a reference signal of one candidate cell in the plurality of candidate cells is activated or deactivated; or

[0077] The first message is used to activate or deactivate reference signals configured in a plurality of reference signal resource configurations, and each indication field in a plurality of indication fields indicates that a reference signal configured by one reference signal resource configuration in the plurality of reference signal resource configurations is activated or deactivated; or

[0078] The first message is used to activate or deactivate reference signals in a plurality of reference signal resource sets, and each indication field in a plurality of indication fields indicates that a reference signal of one reference signal resource set in the plurality of reference signal resource sets is activated or deactivated; or

[0079] The first message is used to activate or deactivate reference signals on a plurality of reference signal resources, and each indication field in a plurality of indication fields indicates that a reference signal on one reference signal resource in the plurality of reference signal resources is activated or deactivated.

[0080] In a possible implementation, a candidate cell where the activated reference signal is located is activated, wherein the reference signal of the activated candidate cell is measured by the terminal device;

[0081] Or, a candidate cell where the deactivated reference signal is located is deactivated, wherein the reference signal of the deactivated candidate cell is not measured by the terminal device,

[0082] The terminal device is a device receiving the first message.

[0083] In a possible implementation, the first message is used to activate or deactivate the reference signal of at least one candidate cell, the at least one candidate cell includes a first candidate cell, and the reference signal of the first candidate cell that is activated or deactivated includes a first reference signal.

[0084] The method further includes:

[0085] The first reference signal that is activated is started to be transmitted from a first time unit after a second time unit, or the first reference signal that is deactivated is stopped to be transmitted from a first time unit after a second time unit;

[0086] The first time unit is a time unit determined after the second time unit by X time units, a value of the X is determined based on a first subcarrier spacing, the first subcarrier spacing is determined based on a subcarrier spacing of the at least one candidate cell and / or a subcarrier spacing of a serving cell, and the value of the X is greater than 0.

[0087] The second time unit is a time unit for transmitting hybrid automatic repeat request-acknowledgement (HARQ-ACK) information corresponding to the first message.

[0088] In a possible implementation, the value of the X is determined based on the first subcarrier spacing, including:

[0089] The value of the X is determined based on a value of N, the value of the N is determined based on the first subcarrier spacing, the value of the N is a number of time units included in one subframe, one subframe includes at least one time unit, and the value of the N is greater than 0.

[0090] In a possible implementation, the first subcarrier spacing is determined based on the subcarrier spacing of the at least one candidate cell and / or the subcarrier spacing of the serving cell, including:

[0091] The first subcarrier spacing is a subcarrier spacing of the first candidate cell; or

[0092] The first subcarrier spacing is the minimum subcarrier spacing among the subcarrier spacings of the at least one candidate cell; or

[0093] The first subcarrier spacing is the maximum subcarrier spacing among the subcarrier spacings of the at least one candidate cell; or

[0094] The first subcarrier spacing is the subcarrier spacing of the serving cell; or

[0095] The first subcarrier spacing is the minimum subcarrier spacing among the subcarrier spacings of the at least one candidate cell and the subcarrier spacing of the serving cell; or

[0096] The first subcarrier spacing is the maximum subcarrier spacing among the subcarrier spacings of the at least one candidate cell and the subcarrier spacing of the serving cell; or

[0097] The first subcarrier spacing is the maximum subcarrier spacing among the subcarrier spacing of the first candidate cell and the subcarrier spacing of the serving cell; or

[0098] The first subcarrier spacing is the minimum subcarrier spacing among the subcarrier spacing of the first candidate cell and the subcarrier spacing of the serving cell.

[0099] In a possible implementation, the value of X is determined based on the value of N, and includes:

[0100] The value of X is determined based on the value of N and an amplification coefficient, the amplification coefficient indicating an amplification multiple of the value of N, and the amplification coefficient is a value greater than 3.

[0101] In a possible implementation, the value of X is determined based on the value of N, and includes:

[0102] The value of X is determined based on the value of N and an increment value, the increment value being a predefined or network-configured number of time units that need to be added.

[0103] Embodiments of the present application also provide a communication device, which includes:

[0104] A receiving unit is configured to receive a first message, the first message being used to activate or deactivate a reference signal, the reference signal being a semi-persistent reference signal of a candidate cell.

[0105] A measuring unit is configured to measure the activated reference signal according to the first message, or stop measuring the deactivated reference signal according to the first message.

[0106] Embodiments of the present application also provide a communication device, which includes:

[0107] a sending unit configured to send a first message, the first message being used to activate or deactivate a reference signal, the reference signal being a semi-persistent reference signal of a candidate cell.

[0108] The embodiment of the present application further provides a communication device, which comprises a processor and a memory, the processor and the memory are connected with each other, the memory is used for storing a computer program, and the processor is configured to execute the computer program to execute any one of the reference signal transmission methods.

[0109] The embodiment of the present application provides a chip, which comprises a processor and an interface, the processor and the interface are coupled; the interface is used for receiving and / or outputting signals, and the processor is used for executing code instructions to execute any one of the reference signal transmission methods.

[0110] The embodiment of the present application provides a module device, which comprises a communication module, a power module, a storage module and a chip module, wherein the power module is used for providing power for the module device; the storage module is used for storing data and / or instructions; the communication module is used for communicating with an external device; and the chip module is used for calling the data and / or instructions stored in the storage module to execute any one of the reference signal transmission methods.

[0111] The embodiment of the present application provides a computer readable storage medium, which stores a computer program, and the computer program comprises program instructions, when the computer executes the program instructions, any one of the reference signal transmission methods is realized.

[0112] The embodiment of the present application provides a computer program product, which comprises a computer program or computer code, when the computer program product is run on a computer, any one of the reference signal transmission methods is realized.

[0113] The embodiment of the present application further provides a reference signal transmission method and a communication device, which can realize triggering of aperiodic reference signals of a candidate cell, and a terminal device can measure the aperiodic reference signals of the candidate cell, so that transmission resources can be saved.

[0114] The embodiment of the present application provides a reference signal triggering method, which comprises:

[0115] receiving a first message, the first message being used to trigger a reference signal, the reference signal being an aperiodic reference signal of a candidate cell;

[0116] According to the first message, the reference signal is measured.

[0117] The method of the first aspect can trigger the aperiodic reference signal of the candidate cell through the first message, and trigger the reference signal of the candidate cell only when the reference signal of the candidate cell needs to be measured, thereby saving transmission resources.

[0118] In a possible implementation, the first message includes indication information used to determine the triggered reference signal.

[0119] The method can flexibly indicate the reference signal that needs to be triggered through the indication information.

[0120] In a possible implementation, the indication information indicates at least one of the following: an identification of a trigger state, an identification of a report configuration, an identification of the candidate cell, an identification of a candidate cell set, an identification of a reference signal resource set, and an identification of a reference signal resource where the reference signal is located.

[0121] The reference signal determined based on the identification of the trigger state is a reference signal configured by a first reference signal resource configuration, and the first reference signal resource configuration is a reference signal resource configuration associated with a first report configuration indicated by the identification of the trigger state.

[0122] The reference signal determined based on the identification of the report configuration is a reference signal configured by a second reference signal resource configuration, and the second reference signal resource configuration is a reference signal resource configuration associated with the report configuration.

[0123] The reference signal determined based on the identification of the candidate cell is a reference signal configured for the candidate cell corresponding to the identification of the candidate cell.

[0124] The reference signal determined based on the identification of the candidate cell set is a reference signal of a candidate cell included in the candidate cell set.

[0125] The reference signal determined based on the identification of the reference signal resource set is a reference signal on a reference signal resource included in the reference signal resource set.

[0126] The reference signal determined based on the identification of the reference signal resource is a reference signal on a reference signal resource corresponding to the identification of the reference signal resource.

[0127] The method can flexibly indicate the reference signal that needs to be triggered.

[0128] In a possible implementation, the first message is used to trigger a reference signal of at least one candidate cell, the at least one candidate cell includes a first candidate cell, and the triggered reference signal of the first candidate cell includes a first reference signal.

[0129] The measuring the reference signal comprises:

[0130] If a transmission offset of the first reference signal is less than a first threshold, measuring the first reference signal based on first quasi co-location (QCL) information;

[0131] The transmission offset of the first reference signal is an offset between a last time unit of a time domain resource where the first message is located and a first time unit of a time domain resource where the first reference signal is located.

[0132] The first QCL information is determined based on a preset rule.

[0133] In this way, when the transmission offset is small, the reference signal can be measured based on the beam information determined based on the preset rule, instead of being measured based on the beam information of the reference signal configured by the network, so that the terminal device can determine the beam information in time and adjust the radio frequency parameter, thereby improving the success rate of reference signal measurement.

[0134] In a possible implementation, the preset rule comprises: the first QCL information is QCL information of a first downlink signal.

[0135] The first downlink signal is a downlink signal transmitted before a reference time unit, and the reference time unit is a first time unit of a time domain resource where the first message is located, or the reference time unit is a first time unit of a time domain resource where the first reference signal is located.

[0136] The first downlink signal is a downlink signal occupying the same time domain resource as the first reference signal.

[0137] In this way, the reference signal is measured by means of the beam information of the first downlink signal, so that the terminal device can determine the beam information in time.

[0138] In a possible implementation, the first downlink signal is a downlink signal transmitted before a reference time unit, comprising:

[0139] The first downlink signal is a downlink signal satisfying a first condition among a plurality of downlink signals transmitted before the reference time unit.

[0140] The first condition comprises at least one of: a smallest index value of the downlink signal, a largest index value of the downlink signal, a smallest index of a reference signal resource where the downlink signal is located, a largest index of the reference signal resource where the downlink signal is located, a downlink signal measured most recently, and a downlink signal with a highest priority.

[0141] In the implementation, the downlink signal satisfying the first condition is determined as the first downlink signal, and the reference signal is measured by means of the beam information of the first downlink signal, and the network device and the terminal device select the first downlink signal based on the same first condition, so that the first downlink signal determined by the network device and the terminal device is consistent, and the beam information determined by the network device and the terminal device is consistent.

[0142] In a possible implementation, the first downlink signal is a downlink signal satisfying the first condition among a plurality of downlink signals transmitted before a reference time unit, and the method comprises:

[0143] The first downlink signal is a downlink signal satisfying the first condition among a plurality of downlink signals transmitted in a time period before a reference time unit, and the time period comprises at least one time unit.

[0144] In the implementation, the first downlink signal is determined from the plurality of downlink signals in the time period before the reference time unit, so that the beam information determined by the network device and the terminal device is consistent.

[0145] In a possible implementation, the plurality of downlink signals are downlink signals transmitted in at least one cell.

[0146] The at least one cell comprises the first candidate cell, or the at least one cell comprises the at least one candidate cell, or the at least one cell comprises a serving cell, or the at least one cell comprises the serving cell and the first candidate cell, or the at least one cell comprises the serving cell and the at least one candidate cell.

[0147] In the implementation, the range of cells in which the plurality of downlink signals are determined is proposed, so that the consistency of the plurality of downlink signals determined by the terminal device and the network device is facilitated, and the consistency of the beam information determined by the terminal device and the network device is ensured.

[0148] In a possible implementation, the first downlink signal is a downlink signal occupying the same time domain resource as the first reference signal, and the method comprises:

[0149] The first downlink signal is a downlink signal satisfying a second condition and occupying the same time domain resource as the first reference signal.

[0150] The second condition comprises at least one of the following: a transmission offset of the first downlink signal is greater than or equal to a second threshold, the first downlink signal is a periodic reference signal, and the first downlink signal is a semi-persistent reference signal.

[0151] The first downlink signal is triggered or scheduled by the second message, and a transmission offset of the first downlink signal is an offset between a last time unit of a time domain resource where the second message is located and a first time of a time domain resource where the first downlink signal is located.

[0152] In this way, the determination rule of the first downlink signal is provided, so that the beam information determined by the network device and the terminal device is consistent.

[0153] In a possible implementation, the first downlink signal is a downlink signal transmitted by the first candidate cell, or the first downlink signal is a downlink signal transmitted by a cell other than the first candidate cell in the at least one candidate cell, or the first downlink signal is a downlink signal transmitted by a serving cell.

[0154] In this way, the cell where the first downlink signal is transmitted is provided, so that the first downlink signal can be flexibly determined.

[0155] In a possible implementation, the first message is carried in a first physical downlink control channel (PDCCH), a second message for triggering or scheduling the first downlink signal is carried in a second PDCCH, the first PDCCH is transmitted based on a first control resource set (CORESET), and the second PDCCH is transmitted based on a second CORESET.

[0156] A CORESET pool index value CORESETPoolIndex associated with the first CORESET is the same as a CORESETPoolIndex associated with the second CORESET.

[0157] In this way, the first CORESET and the second CORESET are associated with the same CORESETPoolIndex, that is, the first PDCCH for triggering the first reference signal and the second PDCCH for triggering or scheduling the first downlink signal are transmitted by the same transmission and reception point (TRP), so that the reception quality of the first reference signal can be improved as much as possible.

[0158] In a possible implementation, the first QCL information is QCL information of the first downlink signal, and the QCL information includes:

[0159] If the first downlink signal corresponds to two TCI states, the first QCL information is QCL information in a first TCI state of the two TCI states.

[0160] The two TCI states corresponding to the first downlink signal are one of the following: two TCI states configured to the first downlink signal, two activated TCI states of the first downlink signal, or two TCI states indicated to the first downlink signal.

[0161] In the implementation, when the first downlink signal corresponds to two TCI states, that is, the first downlink signal corresponds to two beam information, it is proposed to measure the first reference signal by using the QCL information in the first TCI state, so as to ensure that the beam information determined by the network device and the terminal device is consistent.

[0162] In a possible implementation, the preset rule includes that the first QCL information is QCL information in a first TCI state, and the first TCI state is one TCI state in multiple activated TCI states of the second downlink signal.

[0163] In the implementation, the first reference signal is measured by means of the beam information indicated by one TCI state in the multiple activated TCI states of the second downlink signal, and since the terminal device has known the QCL information of the activated TCI state in advance, the terminal device can be improved to adjust the beam as soon as possible, and the efficiency of measuring the first reference signal is improved.

[0164] In a possible implementation, the first TCI state is a TCI state with a minimum index value in the multiple activated TCI states, or the first TCI state is a TCI state with a maximum index value in the multiple activated TCI states, or the first TCI state is a TCI state corresponding to a minimum TCI code point in the multiple activated TCI states, or the first TCI state is a TCI state corresponding to a maximum TCI code point in the multiple activated TCI states, the multiple activated TCI states correspond to different TCI code points respectively, or the first TCI state is a first activated TCI state in two activated TCI states corresponding to a first TCI code point, or the first TCI state is a first activated TCI state in two activated TCI states corresponding to a second TCI code point.

[0165] The first TCI code point is a minimum TCI code point in at least one TCI code point, the second TCI code point is a maximum TCI code point in the at least one TCI code point, each TCI code point in the at least one TCI code point corresponds to two activated TCI states, and the multiple activated TCI states of the second downlink signal include the activated TCI states corresponding to each TCI code point in the at least one TCI code point.

[0166] In the implementation, the determination rule of the first TCI state is proposed, so as to facilitate the network device and the terminal device to determine the beam information based on the same first TCI state.

[0167] In a possible implementation, the preset rule comprises: the first QCL information is QCL information in a second TCI state, the second TCI state is a TCI state of a third control resource set (CORESET), and the third CORESET is a CORESET monitored in at least one latest time slot.

[0168] Implementing this manner, the beam information of the first reference signal is determined based on the TCI state of the CORESET that is monitored most recently, so that the terminal device can determine the beam information of the first reference signal as soon as possible.

[0169] In a possible implementation, the third CORESET is a CORESET monitored in at least one latest time slot, and the method comprises:

[0170] The third CORESET is a CORESET with a minimum index value among a plurality of CORESETs monitored in at least one latest time slot, or the third CORESET is a CORESET with a maximum index value among the plurality of CORESETs monitored in at least one latest time slot.

[0171] Implementing this manner, the determination rule of the third CORESET is proposed, so that the TCI state determined by the network device and the terminal device can be consistent.

[0172] In a possible implementation, the first message is carried in a first PDCCH, and the first PDCCH is transmitted based on a first CORESET.

[0173] The control resource set pool index CORESETPoolIndex associated with the third CORESET is the same as the control resource set pool index CORESETPoolIndex associated with the first CORESET.

[0174] Implementing this manner, the beam information determination in a multi-TRP scenario can be met.

[0175] In a possible implementation, if the third CORESET corresponds to two TCI states, the second TCI state is a first TCI state of the two TCI states corresponding to the third CORESET.

[0176] Implementing this manner, the beam information determination when the CORESET corresponds to two TCI states can be facilitated, and the multi-TRP transmission scenario can be met.

[0177] In a possible implementation, the preset rule comprises: the first QCL information is determined according to QCL information in a third TCI state, and the third TCI state is a target TCI state of a target cell indicated in the cell switching command, and the target cell is one of the at least one candidate cell.

[0178] By implementing this mode, the beam information of the first reference signal is determined according to the target TCI state indicated in the cell switching command, and the reception quality of the first reference signal and the measurement accuracy can be improved.

[0179] In a possible implementation, if the target TCI state comprises two TCI states, the third TCI state is a first TCI state of the two TCI states.

[0180] By implementing this mode, the determination of the beam information when the cell switching command comprises two TCI states is proposed.

[0181] In a possible implementation, the preset rule comprises: the first QCL information is determined according to QCL information in a fourth TCI state, and the fourth TCI state is a TCI state corresponding to a reference signal resource pair of the first candidate cell indicated in a layer 1 / layer 2 triggered mobility (LTM) beam report.

[0182] By implementing this mode, the beam information of the first reference signal is determined according to the TCI state of the first candidate cell indicated in the LTM beam report, and the reception quality of the first reference signal and the measurement accuracy can be improved.

[0183] In a possible implementation, the LTM beam report indicates a TCI state pair corresponding to a reference signal resource pair of the first candidate cell, the reference signal resource pair comprises two reference signal resources, the TCI state pair comprises two TCI states, the two reference signal resources correspond to different TCI states of the two TCI states respectively, and the fourth TCI state is a first TCI state of the two TCI states.

[0184] By implementing this mode, the multi-TRP transmission scenario can be met.

[0185] In a possible implementation, the first candidate cell and a second candidate cell are configured for carrier aggregation, and a second reference signal in the second candidate cell is scheduled or triggered by a third message.

[0186] The method further comprises:

[0187] If a transmission offset of the second reference signal is less than a third threshold, the second reference signal is measured based on the first QCL information.

[0188] The transmission offset of the second reference signal is the offset between the last time unit of the time domain resource where the third message is located and the first time unit of the time domain resource where the second reference signal is located.

[0189] By implementing this method, the beam information of the determined first reference signal is applied to the reference signals of other candidate cells in carrier aggregation, which can reduce the amount of beam information determined.

[0190] In one possible implementation, the number of second candidate cells is at least one, and the cell index value of the first candidate cell is less than the cell index value of each of the at least one second candidate cells; or, the cell index value of the first candidate cell is greater than the cell index value of each of the at least one second candidate cells.

[0191] This approach proposes a method that uniformly applies the beam information of the reference signal of a candidate cell among multiple candidate cells for carrier aggregation, thereby facilitating the consistency of beam information determined by network equipment and terminal equipment.

[0192] In one possible implementation, the first threshold is determined based on the subcarrier spacing of the serving cell and / or the first subcarrier spacing;

[0193] The first subcarrier spacing is the subcarrier spacing of the first candidate cell, or the first subcarrier spacing is the minimum subcarrier spacing of the at least one candidate cell, or the first subcarrier spacing is the maximum subcarrier spacing among the at least one candidate cell.

[0194] Implementing this approach and proposing rules for determining the first threshold can satisfy the determination method for the first threshold in scenarios where the subcarrier spacing between candidate cells is different.

[0195] In one possible implementation, the transmission offset of the first reference signal is determined based on a trigger offset value and an increment value, wherein the trigger offset value is the length of the transmission offset configured by the network, and the increment value is an increase based on the trigger offset value.

[0196] By implementing this method, the length of the trigger offset can be increased by an incremental value, ensuring that the terminal device has enough time to adjust the beam.

[0197] In one possible implementation, the incremental value is carried in one of the following configuration information: LTM configuration information, configuration information of the first candidate cell, report configuration, and reference signal resource configuration information;

[0198] The LTM configuration information includes the first candidate cell;

[0199] The report configuration is used for configuring report of measurement result of the reference signal.

[0200] The reference signal resource configuration information is associated with the report configuration, and the reference signal resource configuration information includes reference signal resources where the first reference signal is located.

[0201] In this way, the configuration mode of the increment value is proposed, and the increment value can be configured without using additional signaling, thereby saving signaling.

[0202] In a possible implementation, a transmission offset of the first reference signal satisfies the following condition: part or all of time domain resources where the first reference signal is located are located in a measurement interval.

[0203] In this way, the condition that the transmission offset of the first reference signal needs to satisfy is proposed, so that the terminal device can measure the first reference signal in the measurement interval.

[0204] Embodiments of the present application further provide a reference signal triggering method, comprising:

[0205] sending a first message, the first message being used for triggering a reference signal, the reference signal being an aperiodic reference signal of a candidate cell.

[0206] In a possible implementation, the first message includes indication information, and the indication information is used for determining the reference signal that is triggered.

[0207] In a possible implementation, the indication information includes at least one of the following: an identifier of a triggering state, an identifier of a report configuration, an identifier of the candidate cell, an identifier of a candidate cell set, an identifier of a reference signal resource set, and an identifier of a reference signal resource where the reference signal is located.

[0208] The reference signal determined based on the identifier of the triggering state is a reference signal configured by a first reference signal resource configuration, and the first reference signal resource configuration is a reference signal resource configuration associated with a first report configuration indicated by the identifier of the triggering state.

[0209] The reference signal determined based on the identifier of the report configuration is a reference signal configured by a second reference signal resource configuration, and the second reference signal resource configuration is a reference signal resource configuration associated with the report configuration.

[0210] The reference signal determined based on the identifier of the candidate cell is a reference signal configured in a candidate cell corresponding to the identifier of the candidate cell.

[0211] The reference signal determined based on the identifier of the candidate cell set is a reference signal of a candidate cell included in the candidate cell set.

[0212] The reference signal determined based on the identification of the reference signal resource set is a reference signal on a reference signal resource included in the reference signal resource set;

[0213] The reference signal determined based on the identification of the reference signal resource is a reference signal on a reference signal resource corresponding to the identification of the reference signal resource.

[0214] In a possible implementation, the first message is used to trigger a reference signal of at least one candidate cell, the at least one candidate cell including a first candidate cell, and the triggered reference signal of the first candidate cell including a first reference signal;

[0215] The method further includes:

[0216] If a transmission offset of the first reference signal is less than a first threshold, the first reference signal is transmitted based on first quasi co-location (QCL) information;

[0217] The transmission offset of the first reference signal is an offset between a last time unit of a time domain resource where the first message is located and a first time unit of a time domain resource where the first reference signal is located.

[0218] The first QCL information is determined based on a preset rule.

[0219] In a possible implementation, the preset rule includes that the first QCL information is QCL information of a first downlink signal.

[0220] The first downlink signal is a downlink signal transmitted before a reference time unit, the reference time unit being a first time unit of a time domain resource where the first message is located, or the reference time unit being a first time unit of a time domain resource where the first reference signal is located; or

[0221] The first downlink signal is a downlink signal occupying a same time domain resource as the first reference signal.

[0222] In a possible implementation, the first downlink signal is a downlink signal transmitted before a reference time unit, including:

[0223] The first downlink signal is a downlink signal satisfying a first condition among a plurality of downlink signals transmitted before a reference time unit;

[0224] The first condition includes at least one of the following: a smallest index value of a downlink signal, a largest index value of a downlink signal, a smallest index of a reference signal resource where a downlink signal is located, a largest index of a reference signal resource where a downlink signal is located, a downlink signal most recently measured, and a downlink signal with a highest priority.

[0225] In a possible implementation, the first downlink signal is a downlink signal satisfying the first condition among a plurality of downlink signals transmitted before a reference time unit, and the method comprises:

[0226] The first downlink signal is a downlink signal satisfying the first condition among a plurality of downlink signals transmitted within a time period before a reference time unit, and the time period comprises at least one time unit.

[0227] In a possible implementation, the plurality of downlink signals are downlink signals transmitted in at least one cell.

[0228] The at least one cell comprises the first candidate cell, or the at least one cell comprises the at least one candidate cell, or the at least one cell comprises a serving cell, or the at least one cell comprises the serving cell and the first candidate cell, or the at least one cell comprises the serving cell and the at least one candidate cell.

[0229] In a possible implementation, the first downlink signal is a downlink signal occupying a same time domain resource as the first reference signal, and the method comprises:

[0230] The first downlink signal is a downlink signal occupying a same time domain resource as the first reference signal and satisfying a second condition.

[0231] The second condition comprises at least one of the following: a transmission offset of the first downlink signal is greater than or equal to a second threshold, the first downlink signal is a periodic reference signal, and the first downlink signal is a semi-persistent reference signal.

[0232] The first downlink signal is scheduled or triggered by a second message, and the transmission offset of the first downlink signal is an offset between a last time unit of a time domain resource where the second message is located and a first time of a time domain resource where the first downlink signal is located.

[0233] In a possible implementation, the first downlink signal is a downlink signal transmitted in the first candidate cell, or the first downlink signal is a downlink signal transmitted in a candidate cell other than the first candidate cell among the at least one candidate cell, or the first downlink signal is a downlink signal transmitted in a serving cell.

[0234] In a possible implementation, the first message is carried in a first physical downlink control channel (PDCCH), the second message for triggering or scheduling the first downlink signal is carried in a second PDCCH, the first PDCCH is transmitted based on a first CORESET, and the second PDCCH is transmitted based on a second CORESET.

[0235] The CORESETPoolIndex associated with the first CORESET is the same as the CORESETPoolIndex associated with the second CORESET.

[0236] In a possible implementation, the first QCL information is QCL information in a first downlink signal, and the first QCL information includes:

[0237] If the first downlink signal corresponds to two TCI states, the first QCL information is QCL information in a first TCI state of the two TCI states.

[0238] The two TCI states corresponding to the first downlink signal are one of the following: two TCI states configured to the first downlink signal, two activated TCI states of the first downlink signal, or two TCI states indicated to the first downlink signal.

[0239] In a possible implementation, the preset rule includes that the first QCL information is QCL information in a first TCI state, and the first TCI state is one TCI state of a plurality of activated TCI states of a second downlink signal.

[0240] In a possible implementation, the first TCI state is a TCI state with a minimum index value in the plurality of activated TCI states, or the first TCI state is a TCI state with a maximum index value in the plurality of activated TCI states, or the first TCI state is a TCI state corresponding to a minimum TCI code point in the plurality of activated TCI states, or the first TCI state is a TCI state corresponding to a maximum TCI code point in the plurality of activated TCI states, or the first TCI state is a first activated TCI state of two activated TCI states corresponding to a first TCI code point, or the first TCI state is a first activated TCI state of two activated TCI states corresponding to a second TCI code point.

[0241] The first TCI code point is a minimum TCI code point in at least one TCI code point, the second TCI code point is a maximum TCI code point in the at least one TCI code point, each TCI code point in the at least one TCI code point corresponds to two activated TCI states, and the plurality of activated TCI states of the second downlink signal includes activated TCI states corresponding to each TCI code point in the at least one TCI code point.

[0242] In a possible implementation, the preset rule comprises: the first QCL information is QCL information in a second TCI state, the second TCI state is a TCI state of a third control resource set (CORESET), and the third CORESET is a CORESET monitored in at least one latest slot.

[0243] In a possible implementation, the third CORESET is a CORESET monitored in at least one latest slot, comprising:

[0244] The third CORESET is a CORESET with a minimum index value in a plurality of CORESETs monitored in at least one latest slot, or the third CORESET is a CORESET with a maximum index value in the plurality of CORESETs monitored in at least one latest slot.

[0245] In a possible implementation, the first message is carried in a first PDCCH, and the first PDCCH is transmitted based on a first CORESET.

[0246] The control resource set pool index CORESETPoolIndex associated with the third CORESET is the same as the control resource set pool index CORESETPoolIndex associated with the first CORESET.

[0247] In a possible implementation, if the third CORESET corresponds to two TCI states, the second TCI state is a first TCI state in the two TCI states corresponding to the third CORESET.

[0248] In a possible implementation, the preset rule comprises: the first QCL information is determined according to QCL information in a third TCI state, the third TCI state is a target TCI state of a target cell indicated in a cell switching command, and the target cell is one of the at least one candidate cell.

[0249] In a possible implementation, if the target TCI state comprises two TCI states, the third TCI state is a first TCI state in the two TCI states.

[0250] In a possible implementation, the preset rule comprises: the first QCL information is determined according to QCL information in a fourth TCI state, and the fourth TCI state is a TCI state corresponding to a reference signal resource of the first candidate cell indicated in a layer 1 / layer 2 triggered mobility (LTM) beam report.

[0251] In a possible implementation, the first candidate cell is indicated by a pair of corresponding TCI states and a pair of reference signal resources in the LTM beam report, the pair of reference signal resources includes two reference signal resources, the pair of TCI states includes two TCI states, the two reference signal resources correspond to different TCI states in the two TCI states respectively, and the fourth TCI state is a first TCI state in the two TCI states.

[0252] In a possible implementation, the first candidate cell and a second candidate cell are configured for carrier aggregation, and a second reference signal in the second candidate cell is scheduled or triggered by the third message.

[0253] The method further includes:

[0254] If a transmission offset of the second reference signal is less than a third threshold, the second reference signal is transmitted based on the first QCL information.

[0255] The transmission offset of the second reference signal is an offset between a last time unit of a time domain resource where the third message is located and a first time unit of a time domain resource where the second reference signal is located.

[0256] In a possible implementation, the number of the second candidate cells is at least one, and a cell index value of the first candidate cell is less than a cell index value of each of the at least one second candidate cell, or the cell index value of the first candidate cell is greater than the cell index value of each of the at least one second candidate cell.

[0257] In a possible implementation, the first threshold is determined based on a subcarrier spacing of a serving cell and / or a first subcarrier spacing.

[0258] The first subcarrier spacing is a subcarrier spacing of the first candidate cell, or the first subcarrier spacing is a minimum subcarrier spacing of the at least one candidate cell, or the first subcarrier spacing is a maximum subcarrier spacing in the at least one candidate cell.

[0259] In a possible implementation, the transmission offset of the first reference signal is determined based on a trigger offset value and an increment value, the trigger offset value is a length of a transmission offset configured by a network, and the increment value is a value increased on the basis of the trigger offset value.

[0260] In a possible implementation, the increment value is carried in one of the following configuration information: LTM configuration information, configuration information of the first candidate cell, report configuration, and reference signal resource configuration information.

[0261] The LTM configuration information comprises the first candidate cell;

[0262] The report configuration is used for configuring the reporting of the measurement result of the reference signal.

[0263] The reference signal resource configuration information is associated with the report configuration, and the reference signal resource configuration information comprises a reference signal resource where the first reference signal is located.

[0264] In a possible implementation, a transmission offset of the first reference signal satisfies the following condition: part or all of a time domain resource where the first reference signal is located is located in a measurement interval.

[0265] Embodiments of the present application further provide a communication device, comprising:

[0266] The receiving unit is configured to receive a first message, the first message being used for triggering a reference signal, the reference signal being an aperiodic reference signal of a candidate cell.

[0267] The measurement unit is further configured to measure the reference signal according to the first message.

[0268] Embodiments of the present application further provide a communication device, comprising:

[0269] The sending unit is configured to send a first message, the first message being used for triggering a reference signal, the reference signal being an aperiodic reference signal of a candidate cell.

[0270] Embodiments of the present application further provide a communication device, comprising a processor and a memory, the processor and the memory being connected to each other, the memory being configured to store a computer program, and the processor being configured to execute the computer program to perform any one of the above reference signal triggering methods.

[0271] Embodiments of the present application provide a chip, comprising a processor and an interface, the processor and the interface being coupled; the interface is configured to receive and / or output signals, and the processor is configured to execute code instructions to perform any one of the above reference signal triggering methods.

[0272] Embodiments of the present application provide a module device, comprising a communication module, a power module, a storage module and a chip module, wherein: the power module is configured to provide power for the module device; the storage module is configured to store data and / or instructions; the communication module is configured to communicate with an external device; and the chip module is configured to call the data and / or instructions stored in the storage module to perform any one of the above reference signal triggering methods.

[0273] The embodiment of the present application further provides a computer readable storage medium, which stores a computer program, and the computer program comprises program instructions, when the program instructions are executed by a computer, any one of the above-mentioned reference signal triggering methods is implemented.

[0274] The embodiment of the present application further provides a computer program product, which comprises a computer program or computer code, when the computer program product is run on a computer, any one of the above-mentioned reference signal triggering methods is implemented. The embodiment of the present application provides a communication system, which comprises a terminal device and a network device.

[0275] The technical scheme provided by the embodiment of the present application has the beneficial effects of the technical scheme provided by the above-mentioned reference signal transmission method and triggering method, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0276] Fig. 1 is a structural schematic diagram of a communication system provided by the embodiment of the present application;

[0277] Fig. 2 is a flow schematic diagram of a reference signal transmission method provided by the embodiment of the present application;

[0278] Fig. 3 is a determination schematic diagram of a first time unit provided by the embodiment of the present application;

[0279] Fig. 4 is a structural schematic diagram of a communication device provided by the embodiment of the present application;

[0280] Fig. 5 is a structural schematic diagram of another communication device provided by the embodiment of the present application;

[0281] Fig. 6 is a flow schematic diagram of a reference signal triggering method provided by the embodiment of the present application;

[0282] Fig. 7 is a schematic diagram of a resource where a reference signal is located and a measurement interval;

[0283] Fig. 8 is another schematic diagram of a resource where a reference signal is located and a measurement interval;

[0284] Fig. 9 is a structural schematic diagram of a communication device provided by the embodiment of the present application;

[0285] Fig. 10 is a structural schematic diagram of another communication device provided by the embodiment of the present application;

[0286] Fig. 11 is a structural schematic diagram of still another communication device provided by the embodiment of the present application;

[0287] Fig. 12 is a structural schematic diagram of a module device provided by the embodiment of the present application. DETAILED DESCRIPTION

[0288] In the embodiments of the present application, the character " / " represents a relationship of one or the other of the associated objects before and after it, unless otherwise specified. For example, A / B can represent A or B. The "and / or" describes the associated relationship of the associated objects, which means that there can be three relationships. For example, A and / or B can represent three cases of A existing alone, A and B existing together, and B existing alone.

[0289] It should be noted that the terms "first", "second", and the like used in the embodiments of the present application are only used for distinguishing purposes of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, nor can they be understood as indicating or implying an order.

[0290] In the embodiments of the present application, "at least one" means one or more, and "multiple" means two or more. In addition, "at least one of the following" or the like means any combination of the items, which can include any combination of single item or multiple items. For example, at least one of A, B or C can represent A, B, C, A and B, A and C, B and C, or A, B and C. Each of A, B and C can be an element or a set containing one or more elements.

[0291] In the embodiments of the present application, "example", "in some embodiments", "in another embodiment" and the like are used to represent an example, illustration or description. Any embodiment or design scheme described as "example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the use of the word "example" is intended to present the concept in a specific manner.

[0292] In the embodiments of the present application, "of", "corresponding" and "corresponding" can be used interchangeably at times, and it should be noted that the meanings to be expressed are consistent when the distinction is not emphasized. In the embodiments of the present application, communication and transmission can be used interchangeably at times, and it should be noted that the meanings to be expressed are consistent when the distinction is not emphasized. For example, transmission can include sending and / or receiving, and can be a noun or a verb.

[0293] In the embodiments of the present application, equal can be used with greater than or less than, but not both at the same time. It should be noted that when equal is used with greater than, it is applicable to the technical solution adopted by greater than; when equal is used with less than, it is applicable to the technical solution adopted by less than.

[0294] Referring to FIG. 1, FIG. 1 is a structural schematic diagram of a communication system provided by an embodiment of the present application. The communication system can include, but is not limited to, one or more network devices, one or more terminal devices. As shown in FIG. 1, an example of the communication system includes one network device and one terminal device, wherein the network device in FIG. 1 is taken as an example of a base station, and the terminal device in FIG. 1 is taken as an example of a mobile phone. The terminal device can establish a wireless link with the network device to perform communication. The communication system shown in FIG. 1 includes, but is not limited to, the network device and the terminal device, and can further include other communication devices. The number and form of devices shown in FIG. 1 are used for example and do not constitute a limitation on the embodiments of the present application.

[0295] The terminal device in the embodiments of the present application is a device with wireless transceiving function, which can be referred to as terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, remote station, remote terminal, mobile device, wireless communication device, UE agent or UE apparatus, etc. The terminal device can be fixed or mobile. It should be noted that the terminal device can support at least one wireless communication technology, such as long term evolution (LTE), new radio (NR), etc. For example, the terminal device can be a mobile phone, a pad, a desktop computer, a notebook computer, an all-in-one machine, a vehicle-mounted terminal, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a wearable device, a terminal in future mobile communication network or a terminal in future evolved public land mobile network (PLMN), etc. In some embodiments of the present application, the terminal can also be a device with transceiving function, such as a chip system. The chip system can include a chip and can also include other discrete devices.

[0296] The network device in the embodiments of the present application is a device that provides a terminal device with a wireless communication function, and can also be referred to as an access network device, a radio access network (RAN) device, and the like. The network device can support at least one wireless communication technology, such as LTE, NR, and the like. For example, the network device includes, but is not limited to, a generation nodeB (gNB) in a 5th-generation (5G) mobile communication system, a base station in a 6th-generation (6G) mobile communication system, an evolved node B (eNB), a radio network controller (RNC), a node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (for example, a home evolved node B or a home node B, HNB), a baseband unit (BBU), a transmitting and receiving point (TRP), a transmitting point (TP), a mobile switching center, and the like. The network device can also be a wireless controller in a cloud radio access network (CRAN) scenario, a centralized unit (CU), and / or a distributed unit (DU), or the network device can be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, and a network device in future mobile communications or a network device in a future evolved PLMN, and the like. In some embodiments, the network device can also be a chip system having a function of providing a terminal device with a wireless communication function. For example, the chip system can include a chip and can also include other discrete devices.

[0297] Before introducing the specific schemes of the embodiments of the present application, the technical terms related to the embodiments of the present application are introduced.

[0298] 1. Reference signal

[0299] A reference signal is a known signal provided by a transmitting end to a receiving end for channel estimation, beam measurement, or channel sounding. The reference signal in the embodiments of the present application can be a channel state information-reference signal (CSI-RS), or other reference signals such as a tracking reference signal (TRS).

[0300] 2. Semi-persistent reference signal

[0301] A semi-persistent reference signal refers to a network device that can configure a transmission period and offset of a reference signal and other parameters through high-layer signaling, but the initial state of the reference signal is inactive. If the reference signal needs to be transmitted, it needs to be activated through signaling first. After the reference signal is activated, the activated reference signal is transmitted periodically based on the configured transmission period and offset. If the reference signal does not need to be transmitted, it needs to be deactivated through signaling. After the reference signal is deactivated, the transmission of the reference signal is stopped.

[0302] 3. Report configuration (ReportConfig)

[0303] A report configuration is used to configure the reporting of measurement results of a reference signal. Specifically, relevant parameters of the reporting of measurement results can be configured, such as the type of reporting, the index of measurement reported, and the like. The report configuration includes a report configuration identifier (reportConfigId), which is used to identify the report configuration (ReportConfig).

[0304] The report configuration further includes an identifier of a reference signal resource configuration (ResourceConfigId), which is used to identify a reference signal resource configuration (ResourceConfig). The reference signal resource configuration is used to configure the reference signal resource for measurement. The report configuration is associated with the reference signal resource configuration through the identifier of the reference signal resource configuration (ResourceConfigId) included in the report configuration.

[0305] Multiple reference signal resource configurations can be included in the report configuration. If the reference signal configured by each reference signal resource configuration is the reference signal of a same candidate cell, the report configuration can further include the candidate cell identifier corresponding to each reference signal resource configuration, respectively.

[0306] 4. Reference signal resource configuration (ResourceConfig)

[0307] The reference signal resource configuration is used to configure information related to the measured reference signal resource. The reference signal resource configuration can include a reference signal resource configuration identifier (ResourceConfigId), which is used to identify the reference signal resource configuration. The following illustrates the way in which the reference signal resource configuration configures the reference signal resource:

[0308] Method 1: The reference signal resource configuration is used to configure a reference signal resource set (ResourceSet), which includes one or more reference signal resources, or the reference signal resource set includes a reference signal resource list, which includes one or more reference signal resources. In the embodiments of the present application, the reference signals on the reference signal resources included in the reference signal resource set configured by the reference signal resource configuration are collectively referred to as the reference signals configured by the reference signal resource configuration.

[0309] If the reference signal resources included in the same reference signal resource set are the reference signal resources of the same candidate cell, the reference signal resource configuration can further configure the candidate cells corresponding to each reference signal resource set, respectively.

[0310] Method 2: The reference signal resource configuration is used to configure the reference signal resource, that is, the reference signal resource configuration directly configures the reference signal resource. Optionally, in this implementation manner, the reference signal resource configuration can further configure the candidate cells corresponding to each reference signal resource, respectively. In the embodiments of the present application, the reference signals on the reference signal resources configured in the reference signal resource configuration are collectively referred to as the reference signals configured by the reference signal resource configuration.

[0311] Method 3: The reference signal resource configuration is used to configure a reference signal resource list (ResourceList). The reference signal resource list includes one or more reference signal resources.

[0312] Optionally, in this implementation manner, the reference signal resource configuration can further configure the candidate cells corresponding to each reference signal resource in the reference signal resource list, respectively. In the embodiments of the present application, the reference signals on the reference signal resources included in the reference signal resource list in the reference signal resource configuration are collectively referred to as the reference signals configured by the reference signal resource configuration.

[0313] If the reference signal resources included in the same reference signal resource list are the reference signal resources of the same candidate cell, in this implementation manner, the reference signal resource configuration can further configure the candidate cells corresponding to each reference signal resource list, respectively.

[0314] 5. Reference signal resource set (ResourceSet)

[0315] In an implementation, the reference signal resource set includes one or more reference signal resource lists (ResourceList), and each reference signal resource list includes at least one reference signal resource. Optionally, the reference signal resource set further includes an identity of a candidate cell in which the at least one reference signal resource in the reference signal resource list is located.

[0316] It can be understood that if the reference signal resources included in the same reference signal resource list are the reference signal resources of the same candidate cell, the reference signal resource set can include the identities of the candidate cells corresponding to the respective reference signal resource lists. For example, the reference signal resource set includes a candidate cell list, the candidate cell list includes a number of candidate cells equal to the number of reference signal resource lists included in the reference signal resource set, and the i-th reference signal resource list includes the reference signal resources of the i-th candidate cell. For another example, each reference signal resource list and the identity of the candidate cell in which the reference signal resources of the reference signal resource list are located can exist in pairs, such as {(ResourceList 1, cell1), (ResourceList2, cell1), (ResourceList 3, cell2)}, the identity of the candidate cell can also be included in the reference signal resource list, and one reference signal resource list includes the identity of one candidate cell.

[0317] The following is an exemplary description taking that the reference signal resource set further includes the identities of the candidate cells in which the respective reference signal resources are located:

[0318] Example 1: The reference signal resource set further includes a candidate cell list, the candidate cell list includes the identities of at least one candidate cell, the number of reference signal resources included in the reference signal resource list is equal to the number of identities of the candidate cells included in the candidate cell list, and the i-th reference signal resource in the reference signal resource list is the reference signal resource of the i-th candidate cell in the candidate cell list. For example, the reference signal resource list is {SSB1, SSB2, SSB3}, and the candidate cell list is {cell1, cell1, cell2}, which indicates that SSB1 and SSB2 are reference signals on the reference signal resources of the candidate cell cell1, and SSB3 is a reference signal on the reference signal resources of the candidate cell cell2.

[0319] In Example 2, the reference signal resource set includes a reference signal resource list, and the reference signal resource list further includes the identity of the candidate cell. The identity of the candidate cell corresponding to each reference signal resource in the reference signal resource list can exist in the reference signal resource list in pairs with the reference signal resource. For example, the reference signal resource list is {(SSB1, cell1), (SSB2, cell1), (SSB3, cell2)}, indicating that SSB1 and SSB2 are reference signals on the reference signal resources of the candidate cell cell1, and SSB3 is a reference signal on the reference signal resource of the candidate cell cell2.

[0320] In another implementation, the reference signal resource set includes at least one reference signal resource. Optionally, the reference signal resource set further includes the identity of the candidate cell corresponding to each reference signal resource. For example, the identity of the candidate cell corresponding to each reference signal resource can exist in the reference signal resource set in pairs with the reference signal resource. For example, the reference signal resource set is {(SSB1, cell1), (SSB2, cell1), (SSB3, cell2)}.

[0321] 6. Reference signal resource list (ResourceList)

[0322] In the embodiments of the present application, the reference signal resource list includes at least one reference signal resource. Optionally, the reference signal resource list can further include the identity of the candidate cell in which each reference signal resource is located.

[0323] It can be understood that if the reference signal resources included in the same reference signal resource list are reference signal resources of the same candidate cell, the reference signal resource list can further include the identity of the candidate cell.

[0324] 7. Beam information

[0325] The beam can be embodied in the protocol as a spatial filter, or a spatial filter or spatial parameters. The beam used for transmitting a signal can be referred to as a transmission beam (Tx beam), and can be referred to as a spatial domain transmit filter or a spatial domain transmit parameter; the beam used for receiving a signal can be referred to as a reception beam (Rx beam), and can be referred to as a spatial domain receive filter or a spatial domain receive parameter. The transmission beam can refer to the distribution of signal strength in different spatial directions after the signal is transmitted by an antenna, and the reception beam can refer to the distribution of signal strength in different spatial directions of a wireless signal received by an antenna.

[0326] It should be understood that the embodiments of the beam in the above-mentioned protocols are only examples and should not constitute any limitation on the present application. The present application does not exclude the possibility of defining other terms in future protocols to represent the same or similar meanings.

[0327] A beam generally corresponds to a reference signal resource. For example, when performing beam measurement, different beams are measured through different reference signal resources, and the terminal device feeds back the quality of the reference signal on the measured reference signal resource, so that the network device knows the quality of the corresponding beam. Each beam corresponds to a reference signal resource, so the beam corresponding to the reference signal resource can be uniquely identified by the index of the reference signal resource.

[0328] In the embodiments of the present application, the beam information can be one of the following: identification information of the beam, spatial relation information, spatial domain transmission filter information, spatial domain reception filter information, spatial domain filter information, transmission configuration indication state (TCI state) information, quasi co-location (QCL) information, QCL parameters, etc. Among them, the downlink beam information can usually be represented by TCI state information or QCL information. The uplink beam information can usually be represented by TCI state information or spatial relation information.

[0329] 8、time unit

[0330] Network devices and terminal devices communicate in time units, or network devices schedule time domain resources for terminal devices in time units. For example, time units can be radio frames, subframes, slots, mini-slots, symbols, and other time domain units. For example, a symbol can be an Orthogonal Frequency Division Multiplexing (OFDM) symbol.

[0331] 9、aperiodic reference signal

[0332] Aperiodic reference signals refer to parameters such as time domain resources and frequency domain resources of the reference signal that can be configured by the network device through higher layer signaling. If the reference signal needs to be sent, it needs to be triggered through signaling first. After the triggered transmission of the reference signal, the triggered reference signal is sent based on the configured time domain resources and frequency domain resources.

[0333] 10、quasi-co-location (QCL)

[0334] Quasi co-location can also be referred to as quasi co-sited, QCL is used to represent that a plurality of resources have one or more same or similar communication characteristics, and for the plurality of resources having a QCL relationship, the same or similar communication configuration can be used. For example, if two antenna ports have a QCL relationship, the channel large-scale characteristics of a signal transmitted by one port can be inferred from the channel large-scale characteristics of a signal transmitted by another port. The reference signals corresponding to the antenna port pairs having the QCL relationship have the same parameters, or the parameters of one antenna port can be used to determine the parameters of another antenna port having a QCL relationship with the one antenna port, or the two antenna ports have the same parameters, or the parameter difference between the two antenna ports is less than a certain threshold. The parameters can include one or more of the following: delay spread, Doppler spread, Doppler shift, average delay, average gain, spatial Rx parameters. The spatial Rx parameters can include one or more of the following: angle of arrival (AOA), average AOA, AOA spread, angle of departure (AOD), average angle of departure AOD, AOD spread, receive antenna spatial correlation parameters, transmit antenna spatial correlation parameters, transmit beam, receive beam, and resource identifier. The resource identifier is used to indicate the beam on the resource.

[0335] The QCL relationship can be divided into the following four types based on different parameters:

[0336] Type A: Doppler shift, Doppler spread, average delay, delay spread

[0337] Type B: Doppler shift, Doppler spread

[0338] Type C: Doppler shift, average delay; and

[0339] Type D: Spatial Rx parameters

[0340] The QCL involved in the embodiments of the present application is the QCL relationship of type D. When the ports of one downlink signal and the ports of another downlink signal satisfy the QCL relationship of type D, it can be considered that the two signals have the same AOA, that is, the two downlink signals have the same receive beam.

[0341] The QCL information in the embodiments of the present application can be understood as QCL parameters, QCL assumptions, etc. The QCL information of the downlink signal can indicate which resource has a QCL relationship with the downlink signal, for example, it can indicate that the receiving beam of the downlink signal can be determined according to the receiving beam of which resource.

[0342] 11. Transmission configuration indicator (TCI) state

[0343] Each TCI state corresponds to an index value of the TCI state, which can uniquely identify a TCI state. The QCL relationship can be generally configured through the TCI state. A TCI state contains a source reference signal (RS) and a QCL type of the source reference signal. The QCL type corresponding to the source reference signal is typeD, which means the same receiving beam as the source reference signal. For example: the TCI state can be used to indicate the source reference signal having a QCL relationship with the DMRS of the physical downlink control channel (PDCCH), in other words, the TCI state can be used to indicate the QCL relationship between the DMRS and the source reference signal. The terminal device can receive the PDCCH by using the same or similar spatial parameters (for example: the same receiving beam) as the spatial parameters of the source reference signal.

[0344] 12. TCI state configuration, TCI state activation, and TCI state indication

[0345] Step 1: TCI state configuration

[0346] The network device configures multiple TCI states for the terminal device through RRC (Radio Resource Control) signaling, for example, 64 or 128 TCI states, etc. The configuration content includes the index value of each TCI state, etc.

[0347] For example, each TCI state includes a typeD QCL information (QCL-Info), and the terminal device can determine the receiving beam according to the QCL information.

[0348] Step 2: TCI state activation

[0349] After the network device configures multiple TCI states for the terminal device, it activates part of the TCI states through a medium access control (MAC) layer MAC control element (CE). For example, 8 TCI states are activated, and the 8 TCI states are one-to-one corresponding to 8 TCI code points in the TCI field (3 bits) in the downlink control information (DCI). That is, which 8 TCI states correspond to the 8 TCI code points represented by the TCI field of the DCI is determined through MAC CE signaling. In the embodiments of the present application, the activated TCI state can also be referred to as an activated TCI state.

[0350] Step three, TCI state indication

[0351] The network device indicates a specific TCI state through the TCI field in the DCI, and based on the TCI state, the terminal device can determine which reference signal has a QCL relationship with the DMRS of the physical downlink shared channel (PDSCH) or the PDCCH, so as to receive the PDSCH or the PDCCH by using the receiving beam of the reference signal.

[0352] For example, the TCI code point of the TCI field in the DCI sent by the network device to the terminal device is 000, indicating that the TCI-state corresponding to 000 is used for data transmission, and according to the TCI-state, the terminal device can further determine the information of the receiving beam corresponding to the data transmission beam. For example: the referenceSignal contained in the type D QCL-Info in the TCI-state is the CSI-RS with index #1, indicating that the receiving beam corresponding to the data transmission beam is the same as the receiving beam corresponding to the CSI-RS with index #1.

[0353] 13, control resource set (CORESET) and control resource set pool index value CORESETPoolIndex

[0354] Since the terminal device is uncertain whether the network device will issue DCI and where the DCI will be issued, the network device will configure a CORESET and a search space (SS) for the terminal device in advance, determine some candidate time-frequency resource positions, so that the terminal device performs blind detection of PDCCH (or DCI) on the candidate time-frequency resource positions to obtain the DCI. The CORESET can be used to determine the frequency domain position occupied by the PDCCH in the frequency domain and the number of symbols occupied by the PDCCH in the time domain, etc. The configuration information of the CORESET includes the index value, frequency domain position, number of symbols occupied in the time domain, TCI state, and other information of the CORESET. The SS can be used to determine the starting symbol of the PDCCH in the time domain, the PDCCH monitoring period, and other information.

[0355] In some implementations, one or more TCI states can be included in the configuration information of the CORESET. If multiple TCI states are included in the configuration information of the CORESET, one of the TCI states can be activated by a MAC CE. After a CORESET is configured or activated with a TCI state, the terminal device can determine the receive beam used for monitoring the PDCCH on the CORESET according to the source reference signal indicated by the TCI state.

[0356] In multi-TRP transmission, the configuration information of the CORESET can also include a control resource set pool index CORESETPoolIndex associated with the CORESET. Different control resource set pool indexes CORESETPoolIndex indicate different TRPs. If two CORESETs are associated with the same control resource set pool index CORESETPoolIndex, it means that the PDCCH transmitted by the two CORESETs is transmitted by the same TRP.

[0357] 14, transmission offset

[0358] The transmission offset in the embodiments of the present application can also be referred to as scheduling offset or triggering offset. Specifically, if the signal is aperiodic reference signal, the transmission offset of the signal can be referred to as triggering offset. For example, the transmission offset of the first reference signal triggered by the first message of the present application can be referred to as triggering offset. If the signal is a signal carried on a physical shared channel, the transmission offset of the signal can be referred to as scheduling offset. For example, if the signal is a signal carried on a PDSCH, the transmission offset of the signal can be referred to as scheduling offset.

[0359] 15, triggering reference signal

[0360] The reference signal triggered in the embodiments of the present application refers to aperiodic reference signal. Specifically, the network device can pre-configure resource information of each aperiodic reference signal in multiple aperiodic reference signals through RRC signaling. The resource information may, for example, include but is not limited to time domain resources and frequency domain resources where the aperiodic reference signal is located. After the network device configures the resource information of the aperiodic reference signal, the aperiodic reference signal will not be transmitted immediately, and the aperiodic reference signal needs to be triggered by the signaling (the signaling can also be referred to as a message) of the network device. That is, when the network device sends the signaling (such as MAC CE command or DCI signaling) for triggering the aperiodic reference signal, the triggered aperiodic reference signal will be transmitted, and the specific transmission mode can be transmitted according to the resource information of the aperiodic reference signal pre-configured by the network device. It can be understood that the number of aperiodic reference signals triggered by the network device is not limited, and one or more aperiodic reference signals can be triggered. The triggering of the reference signal mentioned herein can also be understood as the triggering of the transmission of the reference signal. If it is a downlink aperiodic reference signal, after the network device triggers the aperiodic reference signal, the network device will start transmitting the aperiodic reference signal after a pre-configured time interval (such as a trigger offset), and the terminal device will correspondingly receive and measure the aperiodic reference signal. Conversely, if it is an uplink aperiodic reference signal, after the network device triggers the aperiodic reference signal, the terminal device will start transmitting the aperiodic reference signal after a pre-configured time interval (such as a trigger offset), and the network device will correspondingly receive and measure the aperiodic reference signal.

[0361] The following is an example: the network device can pre-configure resource information of aperiodic reference signal 1, aperiodic reference signal 2, and aperiodic reference signal 3. The network device can send a signaling (the signaling can also be referred to as a message), which is used to trigger aperiodic reference signal 1. That is, the triggered reference signal is aperiodic reference signal 1, and therefore aperiodic reference signal 1 will be transmitted by the network device or the terminal device based on the pre-configured resource information.

[0362] Please refer to FIG. 2, which is a flowchart of a reference signal transmission method provided by the embodiments of the present application. As shown in FIG. 2, the reference signal transmission method of the embodiments includes but is not limited to the following steps:

[0363] 201. The network device sends a first message. Correspondingly, the terminal device receives the first message.

[0364] The first message is used to activate or deactivate a reference signal, which is a semi-persistent (SP) reference signal of the candidate cell. For example, the first message can be a media access control control element (MAC CE), or other signaling, which is not limited in the present application.

[0365] The network device sends the first message in a serving cell, which can activate or deactivate a reference signal of one or more candidate cells, and the number of activated or deactivated reference signals of a candidate cell can be one or more. The candidate cell can be a neighbor cell of the serving cell.

[0366] When the reference signal is activated, the candidate cell where the activated reference signal is located is also activated, and the candidate cell where the deactivated reference signal is located is deactivated.

[0367] If the candidate cell is activated, the terminal device performs LTM measurement and reporting on the activated candidate cell. Specifically, the terminal device measures the reference signal of the activated candidate cell. It can be understood that the reference signal measured by the terminal device is the reference signal configured for the terminal device. The reference signal of the activated candidate cell can include at least one of the following: periodic reference signal, semi-persistent reference signal, or aperiodic reference signal. For the periodic reference signal of the activated candidate cell, the terminal device can start measuring the periodic reference signal of the activated candidate cell after receiving the configuration information of the periodic reference signal. For the semi-persistent reference signal of the activated candidate cell, the terminal device can start measuring the semi-persistent reference signal of the activated candidate cell after receiving the configuration information of the semi-persistent reference signal and the signaling for activating the semi-persistent reference signal. For the aperiodic reference signal of the activated candidate cell, the terminal device can start measuring the aperiodic reference signal of the activated candidate cell after receiving the configuration information of the aperiodic reference signal and the signaling for triggering the aperiodic reference signal.

[0368] If the candidate cell is deactivated, the terminal device does not perform LTM measurement and reporting on the deactivated candidate cell. Specifically, the terminal device does not measure the reference signal of the deactivated candidate cell, i.e., the terminal device does not measure the periodic reference signal, semi-persistent reference signal, or aperiodic reference signal of the deactivated candidate cell. When the reference signal is deactivated, the candidate cell where the deactivated reference signal is located is deactivated, which can reduce the number of measured candidate cells and reduce the measurement overhead.

[0369] The activated or deactivated reference signal can be a reference signal used for the terminal device to measure the beam quality of a candidate cell. Specifically, one reference signal resource of one candidate cell can correspond to one beam, and the beam quality of the beam corresponding to the reference signal resource can be obtained by measuring the signal quality of the reference signal on the reference signal resource.

[0370] The activated or deactivated reference signal can be a reference signal used for the terminal device to measure channel state information (CSI). The CSI can include, but is not limited to, at least one of the following information: Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), CSI-RS Resource Indicator (CRI), and Rank Indication (RI). The channel state information corresponding to the reference signal resource can be obtained by measuring the activated reference signal on the reference signal resource.

[0371] 202. The terminal device measures the activated reference signal according to the first message, or stops measuring the deactivated reference signal according to the first message.

[0372] If the first message is used to activate the reference signal of the candidate cell, the terminal device receives the activated reference signal and measures the signal quality of the reference signal, for example, at least one of the following can be measured: reference signal receiving quality (RSRQ), reference signal receiving power (RSRP), or signal to interference plus noise ratio (SINR), etc. The measurement result of the reference signal can be reported to the network device through semi-persistent reporting or aperiodic reporting.

[0373] In some embodiments, the measurement result reported by the terminal device can include the beam identifier corresponding to the reference signal satisfying the reporting condition, the beam quality, and the identifier of the candidate cell where the reference signal satisfying the reporting condition is located. The reporting condition may, for example, include the reference signal whose measurement result is greater than or equal to the measurement result threshold.

[0374] In some embodiments, the network device can configure the number L of candidate cells that need to be reported and the number M of beams of each candidate cell that need to be reported, and the measurement result reported by the terminal device can include the identification of the L candidate cells, and the beam identification and beam quality of the M beams of each candidate cell, and the M beams can be the M beams with the best beam quality among all the beams of the candidate cell.

[0375] If the first message is used to deactivate the reference signal of the candidate cell, the terminal device stops receiving the deactivated reference signal, and of course the terminal device also stops measuring the deactivated reference signal.

[0376] In the embodiments of the present application, the network device sending the first message and the network device sending the reference signal can be the same or different, and examples are given as follows:

[0377] If the network device sending the first message and the network device sending the reference signal are the same, that is, the candidate cell and the serving cell are cells under the same network device. After the network device sends the first message for activating the reference signal, the network device will send the activated reference signal. After the network device sends the first message for deactivating the reference signal, the network device will stop sending the deactivated reference signal.

[0378] If the network device sending the first message and the network device sending the reference signal are different, that is, the candidate cell and the serving cell are cells under different network devices. For ease of description, the network device sending the first message is referred to as the first network device, and the network device sending the reference signal is referred to as the second network device. If the first network device sends the first message for activating the reference signal, the first network device will notify the second network device to send the activated reference signal. If the first network device sends the first message for deactivating the reference signal, the first network device will notify the second network device to stop sending the deactivated reference signal.

[0379] In some implementations, if the network device configures a reference signal for synchronization associated with the activated reference signal described above, the terminal device needs to measure the activated reference signal associated with the reference signal for synchronization only after having measured the reference signal for synchronization. The reference signal for synchronization measurement can be a synchronization signal block (Synchronization Signal and PBCH block, SSB).

[0380] Examples are given as follows to determine the determination method of the reference signal that needs to be activated or deactivated. Exemplarily, the first message can include first indication information, and the first indication information can be used to determine the activated or deactivated reference signal.

[0381] The first indication information can indicate at least one of the following 1-8:

[0382] 1. an identity of a report configuration

[0383] The identity of the report configuration can be, for example, an identity of an LTM report configuration (LTM report config ID). The report configuration is used to configure reporting of measurement results of reference signals. For a description of the report configuration, refer to the description of the first point in the term explanation. The report configuration is associated with a reference signal resource configuration. For example, the report configuration includes an identity of the reference signal resource configuration, thereby establishing an association between the report configuration and the reference signal resource configuration.

[0384] If the indication information indicates the identity of the report configuration, the activated or deactivated reference signals determined based on the identity of the report configuration are the reference signals configured by the reference signal resource configuration associated with the report configuration.

[0385] 2. an identity of a candidate cell set or an identity of a candidate cell list

[0386] The candidate cell set or the candidate cell list can include one or more candidate cells.

[0387] In the embodiments of the present application, if the first indication information indicates the identity of the candidate cell set, the activated or deactivated reference signals determined based on the identity of the candidate cell set are the reference signals of the candidate cells included in the candidate cell set. For example, the first indication information indicates a candidate cell set 1, and the activated or deactivated reference signals are the reference signals of the candidate cells included in the candidate cell set 1. If the candidate cell set 1 includes a candidate cell 1 and a candidate cell 3, the activated or deactivated reference signals are the reference signals of the candidate cell 1 and the reference signals of the candidate cell 3.

[0388] If the first indication information indicates the identity of the candidate cell list, the activated or deactivated reference signals determined based on the identity of the candidate cell list are the reference signals of the candidate cells included in the candidate cell list.

[0389] 3. an identity of a candidate cell

[0390] The first indication information can indicate the identity of one or more candidate cells.

[0391] If the first indication information indicates the identity of the candidate cell, the activated or deactivated reference signals determined based on the identity of the candidate cell are the reference signals of the candidate cell corresponding to the identity of the candidate cell. For example, the first indication information indicates a candidate cell 1 and a candidate cell 5, and the activated or deactivated reference signals are the reference signals of the candidate cell 1 and the reference signals of the candidate cell 5.

[0392] 4. Identifier of reference signal resource configuration

[0393] The description of reference signal resource configuration can be found in the description of the 4th point in the glossary. The reference signal configured by the reference signal resource configuration can be one of the following: the reference signal on the reference signal resource included in the reference signal resource set configured by the reference signal resource configuration, the reference signal on the reference signal resource configured by the reference signal resource configuration, the reference signal on the reference signal resource included in the reference signal resource list configured by the reference signal resource configuration.

[0394] If the first indication information indicates the identifier of the reference signal resource configuration, the reference signal of the triggered transmission determined based on the identifier of the reference signal resource configuration is the reference signal configured by the reference signal resource configuration.

[0395] 5. Identifier of reference signal resource set

[0396] The description of reference signal resource set (ResourceSet) can be found in the description of the 5th point in the glossary.

[0397] If the reference signal resource set includes one or more reference signal resource lists (ResourceList), and each reference signal resource list includes at least one reference signal resource, the reference signal resource included in the reference signal resource set is the reference signal resource included in the reference signal resource list included in the reference signal resource set.

[0398] If the first indication information indicates the identifier of the reference signal resource set, the reference signal activated or deactivated determined based on the identifier of the reference signal resource set is the reference signal on the reference signal resource included in the reference signal resource set.

[0399] 6. Identifier of reference signal resource list

[0400] The description of reference signal resource list (ResourceList) can be found in the description of the 6th point in the glossary. One reference signal resource list can include one or more reference signal resources.

[0401] If the first indication information indicates the identifier of the reference signal resource list, the reference signal activated or deactivated determined based on the identifier of the reference signal resource list is the reference signal on the reference signal resource included in the reference signal resource list.

[0402] 7. Identifier of reference signal resource where the reference signal is located

[0403] The indication information can indicate the identifier of one or more reference signal resources.

[0404] If the indication information indicates the identity of the reference signal resource, the activated or deactivated reference signal determined based on the identity of the reference signal resource is the reference signal on the reference signal resource.

[0405] 8. identity of the serving cell

[0406] The number of the serving cells can be one or more, accordingly, the first indication information can indicate the identity of one or more serving cells. In the scenario that the serving cells are configured for carrier aggregation, the number of the serving cells can be more than one, for example, the multiple serving cells can include one primary cell and at least one secondary cell. Exemplarily, the first indication information can indicate the identity of the primary cell and the identity of one or more secondary cells, or the first indication information can indicate the identity of one or more secondary cells, or the first indication information can indicate the identity of the primary cell.

[0407] If the first indication information indicates the identity of the serving cell, the activated or deactivated reference signal determined based on the identity of the serving cell can be the reference signal configured by the reference signal resource configuration associated with the reporting configuration of the serving cell, or the activated or deactivated reference signal can be the reference signal of the candidate cell (also referred to as the neighbor cell) of the at least one serving cell.

[0408] The first indication information can indicate one or more of 1-8 above, and the following is an example of the first indication information indicating multiple of 1-8:

[0409] Example 1, the first indication information indicates 1, 3, i.e., the first indication information indicates the identity of the reporting configuration and the identity of the candidate cell.

[0410] Taking the first indication information indicating the identity of the first reporting configuration and the identity of the first candidate cell as an example, the activated or deactivated reference signal is the reference signal on the reference signal resource of the first candidate cell. The reference signal resource of the first candidate cell is the reference signal resource of the first candidate cell configured in the reference signal resource configuration associated with the first reporting configuration.

[0411] Example 2, the first indication information indicates 1, 5, i.e., the first indication information indicates the identity of the reporting configuration and the identity of the reference signal resource set.

[0412] Taking the first indication information indicating the identity of the first reporting configuration and the identity of the first reference signal resource set as an example, the activated or deactivated reference signal is the reference signal on the reference signal resource included in the first reference signal resource set, and the first reference signal resource set is the reference signal resource set configured in the reference signal resource configuration associated with the first reporting configuration. The reference signal resource configuration can configure one or more reference signal resource sets.

[0413] Example 3, the first indication information indicates 1, 6, i.e., the first indication information indicates the identification of the report configuration and the identification of the reference signal resource list.

[0414] Taking the first indication information indicating the identification of the first report configuration and the identification of the first reference signal resource list as an example, the activated or deactivated reference signal is the reference signal on the reference signal resource in the first reference signal resource list, and the first reference signal resource list is a reference signal resource list configured in the reference signal resource configuration associated with the first report configuration. The reference signal resource configuration can configure one or more reference signal resource lists.

[0415] Example 4, the first indication information indicates 1, 7, i.e., the first indication information indicates the identification of the report configuration and the identification of the reference signal resource.

[0416] Taking the first indication information indicating the identification of the first report configuration and the identification of the first reference signal resource as an example, the activated or deactivated reference signal is the reference signal on the first reference signal resource, which is the reference signal configured in the reference signal resource configuration associated with the first report configuration.

[0417] Example 5, the first indication information indicates 3, 5, i.e., the first indication information indicates the identification of the candidate cell and the identification of the reference signal resource set.

[0418] Taking the first indication information indicating the identification of the first candidate cell and the identification of the first reference signal resource set as an example, the activated or deactivated reference signal is the reference signal on the reference signal resource contained in the first reference signal resource set, and the first reference signal resource set is the reference signal resource set of the first candidate cell. One candidate cell can correspond to one or more reference signal resource sets.

[0419] Example 6, the first indication information indicates 3, 7, i.e., the first indication information indicates the identification of the candidate cell and the identification of the reference signal resource.

[0420] Taking the first indication information indicating the identification of the first candidate cell and the identification of the first reference signal resource as an example, the activated or deactivated reference signal is the reference signal on the first reference signal resource, which is configured in the reference signal resource of the first candidate cell.

[0421] Example 7, the first indication information indicates 8, 3, i.e., the first indication information indicates the identification of the serving cell and the identification of the candidate cell.

[0422] Taking the first indication information indicating the identification of the serving cell and the identification of the first candidate cell as an example, the activated or deactivated reference signal is the reference signal of the first candidate cell in at least one candidate cell of the serving cell.

[0423] The combination of the above examples 1-7 is only an example, and other combinations can also be used, which are not limited in the present application.

[0424] The reference signal to be activated or deactivated can be determined by the first indication information in the first message. The first message can also include second indication information, which indicates the beam information corresponding to the activated reference signal, for example, the second indication information can indicate the TCI state identifier corresponding to the activated reference signal. If the number of activated reference signals is multiple, the second indication information needs to indicate the TCI state identifier corresponding to each of the multiple activated reference signals.

[0425] The TCI state identifier corresponding to each activated reference signal can be the TCI state identifier configured in the configuration information of the candidate cell where the reference signal is located, for example, it can be one of the TCI state identifiers in ltm-DL-OrJointTCI-StateToAddModList or ltm-UL-TCI-StatesToAddModList in the configuration information of the candidate cell.

[0426] The following illustrates the indication manner of the first message indicating that the reference signal is activated or deactivated, for example, the first message can include at least one indication field, which can be used to indicate that the reference signal is activated or deactivated. The following illustrates the indication manner of the indication field indicating that the reference signal is activated or deactivated:

[0427] Manner 1, the first message includes one indication field.

[0428] The first message includes one indication field, which can be understood as that all the reference signals determined according to the first indication information share the indication field. If the first identifier is included in the indication field, the indication field indicates that the reference signal is activated, that is, all the reference signals determined according to the first indication information are activated. If the second identifier is included in the indication field, the indication field indicates that the reference signal is deactivated, that is, all the reference signals determined according to the first indication information are deactivated. The first identifier can be 1, and the second identifier can be 0, or the first identifier can be 0, and the second identifier can be 1.

[0429] Manner 2, the first message includes multiple indication fields.

[0430] The following illustrates the indication manner of the multiple indication fields indicating that the reference signal is activated or deactivated:

[0431] In example 1, one indication field indicates that the reference signal of one candidate cell is activated or deactivated, and each of the plurality of indication fields indicates that the reference signal of a different candidate cell is activated or deactivated.

[0432] Specifically, the first message can be used to activate or deactivate the reference signals of a plurality of candidate cells. Each of the plurality of indication fields indicates that the reference signal of one of the plurality of candidate cells is activated or deactivated. For example, the first message can be used to activate or deactivate the reference signals of 3 candidate cells, which are cell1, cell2, and cell3, respectively. The first message can include 3 indication fields, which are indication field 1, indication field 2, and indication field 3, respectively. Indication field 1 can be used to indicate that the reference signal of cell1 is activated or deactivated. Indication field 2 can be used to indicate that the reference signal of cell2 is activated or deactivated. Indication field 3 can be used to indicate that the reference signal of cell3 is activated or deactivated.

[0433] In example 1, if the first identity is included in an indication field, the indication field indicates that the reference signal of the corresponding candidate cell is activated, and if the second identity is included in the indication field, the indication field indicates that the reference signal of the corresponding candidate cell is deactivated. The first identity can be 1, and the second identity can be 0, or the first identity can be 0, and the second identity can be 1.

[0434] In example 2, one indication field indicates that the reference signal configured in one reference signal resource configuration is activated or deactivated, and each of the plurality of indication fields indicates that the reference signal configured in a different reference signal resource configuration is activated or deactivated.

[0435] Specifically, the first message can be used to activate or deactivate the reference signals configured in a plurality of reference signal resource configurations. Each of the plurality of indication fields indicates that the reference signal configured in one of the plurality of reference signal resource configurations is activated or deactivated. For example, the first message can be used to activate or deactivate the reference signals configured in 2 reference signal resource configurations, which are reference signal resource configuration 1 and reference signal resource configuration 2, respectively. The first message can include 2 indication fields, which are indication field 1 and indication field 2, respectively. Indication field 1 can indicate that the reference signal configured in reference signal resource configuration 1 is activated or deactivated. Indication field 2 can indicate that the reference signal configured in reference signal resource configuration 2 is activated or deactivated.

[0436] In example 1, if a first identity is included in the indication field, the indication field indicates that the reference signal configured in the corresponding reference signal resource configuration is activated, and if a second identity is included in the indication field, the indication field indicates that the reference signal configured in the corresponding reference signal resource configuration is deactivated. The first identity can be 1, and the second identity can be 0, or the first identity can be 0, and the second identity can be 1.

[0437] In example 3, if a first identity is included in the indication field, the indication field indicates that the reference signal included in the corresponding reference signal resource set is activated, and if a second identity is included in the indication field, the indication field indicates that the reference signal included in the corresponding reference signal resource set is deactivated. The first identity can be 1, and the second identity can be 0, or the first identity can be 0, and the second identity can be 1.

[0438] Specifically, the first message is used to activate or deactivate the reference signals in the plurality of reference signal resource sets. Each of the plurality of indication fields indicates that the reference signals in one of the plurality of reference signal resource sets are activated or deactivated. For example, the first message can be used to activate or deactivate the reference signals configured in 2 reference signal resource sets, which are reference signal resource set 1 and reference signal resource set 2, respectively. The first message can include 2 indication fields, which are indication field 1 and indication field 2, respectively. Indication field 1 indicates that the reference signals in reference signal resource set 1 are activated or deactivated. Indication field 2 can indicate that the reference signals in reference signal resource set 2 are activated or deactivated.

[0439] In example 3, if a first identity is included in the indication field, the indication field indicates that the reference signal included in the corresponding reference signal resource set is activated, and if a second identity is included in the indication field, the indication field indicates that the reference signal included in the corresponding reference signal resource set is deactivated. The first identity can be 1, and the second identity can be 0, or the first identity can be 0, and the second identity can be 1.

[0440] In example 4, one indication field indicates that the reference signal on one reference signal resource is activated or deactivated, and each of the plurality of indication fields indicates that the reference signals on different reference signal resources are activated or deactivated.

[0441] Specifically, the first message is used to activate or deactivate reference signals on a plurality of reference signal resources. Each indication field in the plurality of indication fields respectively indicates that a reference signal on one reference signal resource in the plurality of reference signal resources is activated or deactivated. For example, the first message can be used to activate or deactivate reference signals on 2 reference signal resources, which are respectively reference signal resource 1 and reference signal resource 2. The first message can include 2 indication fields, which are respectively indication field 1 and indication field 2. Indication field 1 indicates that the reference signal on reference signal resource 1 is activated or deactivated. Indication field 2 indicates that the reference signal on reference signal resource 2 is activated or deactivated.

[0442] In Example 4, if the first identity is included in an indication field, the indication field indicates that the reference signal on the corresponding reference signal resource is activated, and if the second identity is included in the indication field, the indication field indicates that the reference signals on the corresponding set of reference signal resources are deactivated. The first identity can be 1, and the second identity can be 0, or the first identity can be 0, and the second identity can be 1.

[0443] In various examples of the above manner 2, the first message can include a plurality of indication fields, and the identities included in the plurality of indication fields can be the same, or the identities included in the plurality of indication fields can be different, which can achieve more flexible indication of reference signal activation or deactivation.

[0444] If the identities included in the plurality of indication fields are different, that is, the first message can achieve activation of a part of the reference signals and deactivation of another part of the reference signals. For example, the first message includes T indication fields as an example, T is a natural number greater than 1, Y indication fields in the T indication fields respectively include the first identity, T-Y indication fields respectively include the second identity, and Y is a natural number greater than or equal to 1. The indication manners of the T indication fields are described below in combination with the above Examples 1-4:

[0445] If one indication field indicates that the reference signal of one candidate cell is activated or deactivated (i.e., the above Example 1), Y indication fields in the T indication fields can indicate that the reference signals of different candidate cells in Y candidate cells are activated. T-Y indication fields in the T indication fields can indicate that the reference signals of different candidate cells in T-Y candidate cells are deactivated. Taking T=2, Y=1 as an example, T-Y=1, that is, one indication field in 2 indication fields is used to indicate that the reference signal of one candidate cell is activated, and the other indication field in 2 indication fields is used to indicate that the reference signal of another candidate cell is deactivated.

[0446] If one indication field indicates that the reference signal configured in one reference signal resource configuration is activated or deactivated (i.e. the above example 2), Y indication fields in T indication fields can indicate that the reference signals configured in different reference signal resource configurations in Y reference signal resource configurations are activated. T-Y indication fields in T indication fields can indicate that the reference signals configured in different reference signal resource configurations in T-Y reference signal resource configurations are deactivated. Taking T=2 and Y=1 as an example, T-Y=1, that is, one indication field in 2 indication fields is used to indicate that the reference signal in one reference signal resource configuration is activated, and the other indication field in 2 indication fields indicates that the reference signal in another reference signal resource configuration is deactivated.

[0447] If one indication field indicates that the reference signal in one reference signal resource set is activated or deactivated (i.e. the above example 3), Y indication fields in T indication fields can indicate that the reference signals in different reference signal resource sets in Y reference signal resource sets are activated. T-Y indication fields in T indication fields can indicate that the reference signals in different reference signal resource sets in T-Y reference signal resource sets are deactivated. Taking T=2 and Y=1 as an example, T-Y=1, that is, one indication field in 2 indication fields is used to indicate that the reference signal in one reference signal resource set is activated, and the other indication field in 2 indication fields indicates that the reference signal in another reference signal resource set is deactivated.

[0448] If one indication field indicates that the reference signal on one reference signal resource is activated or deactivated (i.e. the above example 4), Y indication fields in T indication fields can indicate that the reference signals on different reference signal resources in Y reference signal resources are activated. T-Y indication fields in T indication fields can indicate that the reference signals on different reference signal resources in T-Y reference signal resources are deactivated. Taking T=2 and Y=1 as an example, T-Y=1, that is, one indication field in 2 indication fields is used to indicate that the reference signal on one reference signal resource is activated, and the other indication field in 2 indication fields indicates that the reference signal on another reference signal resource is deactivated.

[0449] The effective time unit of the activation or deactivation of the reference signal is introduced as follows.

[0450] If the reference signal is activated, the effective time unit can be understood as the time unit at which the activated reference signal starts to be transmitted. For example, for the network device, the effective time unit is the time unit at which the activated reference signal starts to be transmitted, and for the terminal device, the effective time unit is the time unit at which the activated reference signal starts to be received or measured.

[0451] If the reference signal is deactivated, the effective time unit can be understood as a time unit in which the deactivated reference signal starts to stop transmission. For example, for the network device, the effective time unit is a time unit in which the sending of the deactivated reference signal starts to stop; for the terminal device, the effective time unit is a time unit in which the measurement of the deactivated reference signal starts to stop.

[0452] In the embodiments of the present application, the first message can be used to activate or deactivate the reference signal of at least one candidate cell. In the subsequent embodiments, the first message is used to activate or deactivate the reference signal of W candidate cells as an example, W is a natural number, and the number of reference signals activated or deactivated for each candidate cell can be one or more. For ease of description, the activation or deactivation effective time unit of one reference signal will be introduced as an example below, which can be referred to as the first reference signal, and the candidate cell where the first reference signal is located is referred to as the first candidate cell. The first candidate cell is one of the W candidate cells. It can be understood that the determination method of the activation or deactivation effective time unit of other reference signals can refer to the determination method of the activation or deactivation effective time unit of the first reference signal:

[0453] The effective time unit of the first reference signal is the first time unit after the first time unit, that is, if the first reference signal is activated, the first reference signal starts to transmit from the first time unit after the first time unit, and if the first reference signal is deactivated, the first reference signal starts to stop transmission from the first time unit after the first time unit.

[0454] The first time unit is a time unit determined by shifting X time units after the second time unit, and the second time unit is a time unit in which Hybrid Automatic Repeat request-ACKnowledgement (HARQ-ACK) information corresponding to the transmission of the first message is transmitted. For example, the index value of the first time unit is n+X, n is the index value of the second time unit, and the value of X is greater than 0. The following will be illustrated by taking FIG. 3 as an example, X=5, the first time unit is a time unit determined by shifting 5 time units after the second time unit, and FIG. 3 is a schematic diagram of the positions of the first time unit and the second time unit. If the time slot 2 of the second time unit, then the first time unit is the time slot 7.

[0455] The value of X can be determined based on a first subcarrier spacing, which is determined based on the subcarrier spacing of the W candidate cells and / or the subcarrier spacing of the serving cell.

[0456] In some embodiments, the value of X can be determined based on a value of N, the value of N is determined based on a first subcarrier spacing, and the value of N is a number of time units in a subframe, e.g., the time unit is a slot, and the value of N is a number of slots in a subframe.

[0457] The following illustrates a manner of determining the first subcarrier spacing, which can be one of the following:

[0458] I. The first subcarrier spacing is a subcarrier spacing of a first candidate cell.

[0459] That is, the value of N is determined based on a subcarrier spacing of a candidate cell where the first reference signal is located.

[0460] II. The first subcarrier spacing is a minimum subcarrier spacing among subcarrier spacings of W candidate cells.

[0461] If W = 1, i.e., the number of candidate cells is 1, the first subcarrier spacing is the subcarrier spacing of the candidate cell. If W is greater than 1, i.e., the number of candidate cells is multiple, the first subcarrier spacing is a minimum subcarrier spacing among subcarrier spacings of the multiple candidate cells, and if the subcarrier spacings of the multiple candidate cells are the same, the first subcarrier spacing is the same subcarrier spacing.

[0462] III. The first subcarrier spacing is a maximum subcarrier spacing among subcarrier spacings of W candidate cells.

[0463] If W = 1, i.e., the number of candidate cells is 1, the first subcarrier spacing is the subcarrier spacing of the candidate cell. If W is greater than 1, i.e., the number of candidate cells is multiple, the first subcarrier spacing is a maximum subcarrier spacing among subcarrier spacings of the multiple candidate cells, and if the subcarrier spacings of the multiple candidate cells are the same, the first subcarrier spacing is the same subcarrier spacing.

[0464] IV. The first subcarrier spacing is a subcarrier spacing of a serving cell.

[0465] V. The first subcarrier spacing is a minimum subcarrier spacing among a subcarrier spacing of W candidate cells and a subcarrier spacing of a serving cell.

[0466] That is, a minimum subcarrier spacing is determined from the subcarrier spacing of the W candidate cells and the subcarrier spacing of the serving cell as the first subcarrier spacing.

[0467] VI. The first subcarrier spacing is a maximum subcarrier spacing among a subcarrier spacing of W candidate cells and a subcarrier spacing of a serving cell.

[0468] That is, the maximum subcarrier spacing is determined from the subcarrier spacing of the W candidate cells and the subcarrier spacing of the serving cell as the first subcarrier spacing.

[0469] Seven, the first subcarrier spacing is the maximum subcarrier spacing from the subcarrier spacing of the first candidate cell and the subcarrier spacing of the serving cell.

[0470] That is, the larger subcarrier spacing is determined from the subcarrier spacing of the first candidate cell where the first reference signal is located and the subcarrier spacing of the serving cell as the first subcarrier spacing.

[0471] Eight, the first subcarrier spacing is the minimum subcarrier spacing from the subcarrier spacing of the first candidate cell and the subcarrier spacing of the serving cell.

[0472] That is, the smaller subcarrier spacing is determined from the subcarrier spacing of the first candidate cell where the first reference signal is located and the subcarrier spacing of the serving cell as the first subcarrier spacing.

[0473] Since the reference signal activated or deactivated by the first message is the reference signal of the candidate cell, and the first message is transmitted in the serving cell, in order to ensure that the terminal device has sufficient time to switch and adjust the radio frequency parameters to measure the reference signal of the candidate cell, and / or, the network devices have sufficient time to interact information, the value of X in the embodiments of the present application is based on the determination method of the value of N:

[0474] Determination method 1, the value of X is determined based on the value of N and an amplification coefficient.

[0475] The amplification coefficient indicates the amplification multiple of the value of N, and the amplification coefficient is a value greater than 3. That is, the value of X is determined based on the value of 5*N. For example, if the amplification coefficient is 5, the value of X is determined based on the value of 5*N.

[0476] Determination method 2, the value of X is determined based on the value of N and an increment value.

[0477] The increment value is a predefined or network configured number of time units that need to be additionally increased. For example, the value of X is determined based on (3*N+increment value).

[0478] It can be understood that determination method 1 and determination method 2 can be used alone or jointly, for example, the value of X is determined based on (amplification coefficient*N+increment value), and the amplification coefficient is greater than 3.

[0479] In the embodiments of the present application, the first message is carried in one or more bytes, and the first message can further include one or more information indication fields, one information indication field can correspond to one byte, and the information indication field is used to indicate whether the corresponding byte contains content that needs to be parsed. For example, one byte is used to carry an identifier of a reference signal resource set, and the information indication field corresponding to the byte is used to indicate whether the byte carries the identifier of the reference signal resource set. Please refer to FIG. 4, which is a structural schematic diagram of a communication apparatus provided by the embodiments of the present application, and the communication apparatus is applied to a terminal device. For example, the communication apparatus can be a terminal device, or a device in the terminal device, such as a chip or a chip module in the terminal device, or a device capable of being matched with the terminal device. The communication apparatus 400 shown in FIG. 4 can include a first receiving unit 410 and a first measurement unit 420:

[0480] The first receiving unit 410 is configured to receive a first message, and the first message is used to activate or deactivate a reference signal, and the reference signal is a semi-persistent reference signal of a candidate cell.

[0481] The first measurement unit 420 is further configured to measure the activated reference signal according to the first message, or stop measuring the deactivated reference signal according to the first message.

[0482] In a possible implementation, the first message includes first indication information, and the first indication information is used to determine the activated or deactivated reference signal.

[0483] In a possible implementation, the first indication information indicates at least one of the following: an identifier of a report configuration, an identifier of a candidate cell set, an identifier of a candidate cell, an identifier of a reference signal resource configuration, an identifier of a reference signal resource set, an identifier of a reference signal resource list, or an identifier of a reference signal resource.

[0484] The reference signal determined based on the identifier of the report configuration is a reference signal configured in a reference signal resource configuration associated with the report configuration, and the report configuration is used to configure the reporting of the measurement result of the reference signal.

[0485] The reference signal determined based on the identifier of the candidate cell set is a reference signal configured in a candidate cell included in the candidate cell set.

[0486] The reference signal determined based on the identifier of the candidate cell is a reference signal configured in the candidate cell.

[0487] The reference signal determined based on the identifier of the reference signal resource configuration is a reference signal configured in the reference signal resource configuration.

[0488] The reference signal determined based on the identification of the reference signal resource set is a reference signal on a reference signal resource included in the reference signal resource set.

[0489] The reference signal determined based on the identification of the reference signal resource list is a reference signal on a reference signal resource included in the reference signal resource list.

[0490] The reference signal determined based on the identification of the reference signal resource is a reference signal carried by the reference signal resource.

[0491] In a possible implementation, the first message includes second indication information, and the second indication information indicates a TCI state identification corresponding to the activated reference signal.

[0492] In a possible implementation, the first message further includes at least one indication field, and the at least one indication field is used to indicate that the reference signal is activated or deactivated.

[0493] In a possible implementation, the number of indication fields is a plurality.

[0494] The first message is used to activate or deactivate reference signals of a plurality of candidate cells, and each indication field in the plurality of indication fields respectively indicates that a reference signal of one candidate cell in the plurality of candidate cells is activated or deactivated; or

[0495] The first message is used to activate or deactivate reference signals configured in a plurality of reference signal resource configurations, and each indication field in the plurality of indication fields respectively indicates that a reference signal configured in one reference signal resource configuration in the plurality of reference signal resource configurations is activated or deactivated; or

[0496] The first message is used to activate or deactivate reference signals in a plurality of reference signal resource sets, and each indication field in the plurality of indication fields respectively indicates that a reference signal in one reference signal resource set in the plurality of reference signal resource sets is activated or deactivated; or

[0497] The first message is used to activate or deactivate reference signals on a plurality of reference signal resources, and each indication field in the plurality of indication fields respectively indicates that a reference signal on one reference signal resource in the plurality of reference signal resources is activated or deactivated.

[0498] In a possible implementation, a candidate cell where the activated reference signal is located is activated, and a reference signal of the activated candidate cell is measured by a terminal device.

[0499] Or, the candidate cell where the reference signal is deactivated is deactivated, wherein the reference signal of the deactivated candidate cell is not measured by the terminal device,

[0500] The terminal device is a device receiving the first message.

[0501] In a possible implementation, the first message is used to activate or deactivate the reference signal of at least one candidate cell, the at least one candidate cell includes a first candidate cell, and the reference signal of the first candidate cell that is activated or deactivated includes a first reference signal;

[0502] The first measurement unit 420 is specifically configured to measure the activated first reference signal from a first time unit after a first time unit according to the first message, or stop measuring the deactivated first reference signal from a first time unit after a first time unit according to the first message.

[0503] The first time unit is a time unit determined by shifting X time units after the second time unit, the value of X is determined based on a first subcarrier spacing, the first subcarrier spacing is determined based on a subcarrier spacing of the at least one candidate cell and / or a subcarrier spacing of a serving cell, and the value of X is greater than 0.

[0504] The second time unit is a time unit for transmitting hybrid automatic repeat request-acknowledgement (HARQ-ACK) information corresponding to the first message.

[0505] In a possible implementation, the value of X is determined based on the first subcarrier spacing, including:

[0506] The value of X is determined based on the value of N, the value of N is determined based on the first subcarrier spacing, the value of N is the number of time units contained in one subframe, one subframe includes at least one time unit, and the value of N is greater than 0.

[0507] In a possible implementation, the first subcarrier spacing is determined based on the subcarrier spacing of the at least one candidate cell and / or the subcarrier spacing of the serving cell, including:

[0508] The first subcarrier spacing is the subcarrier spacing of the first candidate cell; or

[0509] The first subcarrier spacing is the minimum subcarrier spacing in the subcarrier spacing of the at least one candidate cell; or

[0510] The first subcarrier spacing is the maximum subcarrier spacing in the subcarrier spacing of the at least one candidate cell; or

[0511] The first subcarrier spacing is the subcarrier spacing of the at least one candidate cell and the subcarrier spacing of the serving cell.

[0512] The first subcarrier spacing is the minimum subcarrier spacing of the subcarrier spacing of the at least one candidate cell and the subcarrier spacing of the serving cell.

[0513] The first subcarrier spacing is the maximum subcarrier spacing of the subcarrier spacing of the at least one candidate cell and the subcarrier spacing of the serving cell.

[0514] The first subcarrier spacing is the maximum subcarrier spacing of the subcarrier spacing of the first candidate cell and the subcarrier spacing of the serving cell.

[0515] The first subcarrier spacing is the minimum subcarrier spacing of the subcarrier spacing of the first candidate cell and the subcarrier spacing of the serving cell.

[0516] In a possible implementation, the value of X is determined based on the value of N, including:

[0517] The value of X is determined based on the value of N and an amplification coefficient, the amplification coefficient indicating an amplification multiple of the value of N, and the amplification coefficient is a value greater than 3.

[0518] In a possible implementation, the value of X is determined based on the value of N, including:

[0519] The value of X is determined based on the value of N and an increment value, the increment value being a predefined or network-configured number of time units that need to be added.

[0520] The specific description of FIG. 4 can refer to the description of the foregoing method embodiments, which will not be repeated here.

[0521] Please refer to FIG. 5. The communication apparatus is applied to a network device. For example, the communication apparatus can be a network device or a device in a network device, such as a chip or a chip module in the network device, or a device capable of matching the network device. The communication apparatus 500 shown in FIG. 5 can include a first sending unit 510, in which:

[0522] The first sending unit 510 is configured to send a first message, the first message being used to activate or deactivate a reference signal, the reference signal being a semi-persistent reference signal of a candidate cell.

[0523] In a possible implementation, the first message includes first indication information, the first indication information being used to determine the activated or deactivated reference signal.

[0524] In a possible implementation, the first indication information indicates at least one of the following: an identity of a report configuration, an identity of a candidate cell set, an identity of a candidate cell, an identity of a reference signal resource configuration, an identity of a reference signal resource set, an identity of a reference signal resource list, or an identity of a reference signal resource;

[0525] The reference signal determined based on the identity of the report configuration is a reference signal configured in a reference signal resource configuration associated with the report configuration, and the report configuration is used for configuring reporting of a measurement result of the reference signal;

[0526] The reference signal determined based on the identity of the candidate cell set is a reference signal configured in a candidate cell included in the candidate cell set;

[0527] The reference signal determined based on the identity of the candidate cell is a reference signal configured in the candidate cell;

[0528] The reference signal determined based on the identity of the reference signal resource configuration is a reference signal configured in the reference signal resource configuration;

[0529] The reference signal determined based on the identity of the reference signal resource set is a reference signal on a reference signal resource included in the reference signal resource set;

[0530] The reference signal determined based on the identity of the reference signal resource list is a reference signal on a reference signal resource included in the reference signal resource list;

[0531] The reference signal determined based on the identity of the reference signal resource is a reference signal carried by the reference signal resource.

[0532] In a possible implementation, the first message includes second indication information, and the second indication information indicates an identity of a TCI state corresponding to the activated reference signal.

[0533] In a possible implementation, the first message further includes at least one indication field, and the at least one indication field is used to indicate that the reference signal is activated or deactivated.

[0534] In a possible implementation, the number of indication fields is a plurality;

[0535] The first message is used to activate or deactivate reference signals of a plurality of candidate cells, and each indication field in the plurality of indication fields indicates that a reference signal of one candidate cell in the plurality of candidate cells is activated or deactivated; or,

[0536] The first message is used to activate or deactivate reference signals configured in a plurality of reference signal resource configurations, each of a plurality of indication fields respectively indicates that reference signals configured in one of the plurality of reference signal resource configurations are activated or deactivated; or,

[0537] The first message is used to activate or deactivate reference signals in a plurality of reference signal resource sets, each of a plurality of indication fields respectively indicates that reference signals in one of the plurality of reference signal resource sets are activated or deactivated; or,

[0538] The first message is used to activate or deactivate reference signals on a plurality of reference signal resources, each of a plurality of indication fields respectively indicates that reference signals on one of the plurality of reference signal resources are activated or deactivated.

[0539] In a possible implementation, a candidate cell where the activated reference signal is located is activated, wherein the reference signal of the activated candidate cell is measured by the terminal device;

[0540] Or, a candidate cell where the deactivated reference signal is located is deactivated, wherein the reference signal of the deactivated candidate cell is not measured by the terminal device,

[0541] The terminal device is a device receiving the first message.

[0542] In a possible implementation, the first message is used to activate or deactivate reference signals of at least one candidate cell, the at least one candidate cell includes a first candidate cell, and the activated or deactivated reference signal of the first candidate cell includes a first reference signal;

[0543] The first sending unit 510 is further configured to start sending the activated first reference signal from a first time unit after a second time unit, or stop sending the deactivated first reference signal from the first time unit after the second time unit;

[0544] The first time unit is a time unit determined after the second time unit by offsetting X time units, the value of X is determined based on a first subcarrier spacing, the first subcarrier spacing is determined based on a subcarrier spacing of the at least one candidate cell and / or a subcarrier spacing of a serving cell, and the value of X is greater than 0;

[0545] The second time unit is a time unit for transmitting hybrid automatic repeat request-acknowledgement (HARQ-ACK) information corresponding to the first message.

[0546] In a possible implementation, the value of the X is determined based on the first subcarrier spacing, including:

[0547] The value of the X is determined based on a value of N, the value of the N is determined based on the first subcarrier spacing, the value of the N is a quantity of time units contained in one subframe, one of the subframes includes at least one time unit, and the value of the N is greater than 0.

[0548] In a possible implementation, the first subcarrier spacing is determined based on a subcarrier spacing of the at least one candidate cell and / or a subcarrier spacing of a serving cell, including:

[0549] The first subcarrier spacing is a subcarrier spacing of the first candidate cell; or,

[0550] The first subcarrier spacing is a minimum subcarrier spacing in the subcarrier spacings of the at least one candidate cell; or,

[0551] The first subcarrier spacing is a maximum subcarrier spacing in the subcarrier spacings of the at least one candidate cell; or,

[0552] The first subcarrier spacing is a subcarrier spacing of the serving cell; or,

[0553] The first subcarrier spacing is a minimum subcarrier spacing in the subcarrier spacings of the at least one candidate cell and the subcarrier spacing of the serving cell; or,

[0554] The first subcarrier spacing is a maximum subcarrier spacing in the subcarrier spacings of the at least one candidate cell and the subcarrier spacing of the serving cell; or,

[0555] The first subcarrier spacing is a maximum subcarrier spacing in the subcarrier spacings of the first candidate cell and the subcarrier spacing of the serving cell; or,

[0556] The first subcarrier spacing is a minimum subcarrier spacing in the subcarrier spacings of the first candidate cell and the subcarrier spacing of the serving cell.

[0557] In a possible implementation, the value of the X is determined based on the value of the N, including:

[0558] The value of the X is determined based on the value of the N and an amplification coefficient, the amplification coefficient indicates an amplification multiple of the value of the N, and the amplification coefficient is a value greater than 3.

[0559] In a possible implementation, the value of the X is determined based on the value of the N, including:

[0560] The value of the X is determined based on the value of the N and an increment value, the increment value being a predefined or network configured number of time units needed to be added.

[0561] The specific description of FIG. 5 can refer to the description of the foregoing method embodiment, which will not be repeated here.

[0562] Please refer to FIG. 6, which is a flowchart of a reference signal triggering method provided by an embodiment of the present application. As shown in FIG. 6, the reference signal triggering method of the embodiment includes but is not limited to the following steps:

[0563] 601, the network device sends a first message. Correspondingly, the terminal device receives the first message.

[0564] The first message is used to trigger a reference signal, and the triggered reference signal is an aperiodic reference signal of a candidate cell. That is, the first message in the embodiment of the present application can be used to trigger an aperiodic reference signal of a candidate cell. The reference signal triggered by the first message is transmitted based on the preconfigured resource information of the reference signal, which can be seen in the 14th term explanation.

[0565] The triggered aperiodic reference signal of the candidate cell can be a CSI-RS, or other reference signals. The first message can be a DCI, or other signaling, which is not limited by the present application.

[0566] The network device sends the first message in the serving cell, which can trigger the aperiodic reference signal of one or more candidate cells, and the number of aperiodic reference signals triggered by a candidate cell can be one or more. The candidate cell can be a neighbor cell of the serving cell.

[0567] The triggered reference signal can be a reference signal used by the terminal device to measure the beam quality of the candidate cell. Specifically, one reference signal resource of one candidate cell can correspond to one beam, and the beam quality of the beam corresponding to the reference signal resource can be obtained by measuring the reference signal on the reference signal resource.

[0568] The triggered reference signal can be a reference signal for the terminal device to measure channel state information (CSI). The CSI can include, but is not limited to, at least one of the following information: Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), CSI-RS Resource Indicator (CRI), and Rank Indication (RI). The channel state information corresponding to a reference signal resource can be obtained by measuring the reference signal on the reference signal resource.

[0569] 602. The terminal device measures the reference signal according to the first message.

[0570] The terminal device receives the triggered reference signal and measures the signal quality of the reference signal. For example, the terminal device can measure at least one of the following: reference signal receiving quality (RSRQ), reference signal receiving power (RSRP), or signal to interference plus noise ratio (SINR), etc. For another example, the terminal device can measure channel state information (CSI).

[0571] The measurement result of the reference signal can be reported to the network device through an aperiodic report. In some implementations, the aperiodic report can also be triggered by the first message, that is, the first message can be used to trigger both the aperiodic report and the aperiodic reference signal of the candidate cell. Specifically, the aperiodic reference signal to be triggered is the reference signal configured by the reference signal resource configuration associated with the report configuration triggered by the first message. It can be understood that in some implementations, the message used to trigger the aperiodic report and the message used to trigger the aperiodic reference signal of the candidate cell can also be different, for example, the aperiodic report and the aperiodic reference signal of the candidate cell can be triggered by different DCIs respectively.

[0572] In some embodiments, the measurement result reported by the terminal device can include the beam identifier corresponding to the reference signal satisfying the reporting condition, the beam quality, and the identifier of the candidate cell in which the reference signal satisfying the reporting condition is located. The reporting condition can include, for example, the reference signal whose measurement result is greater than or equal to a measurement result threshold.

[0573] In some embodiments, the network device can configure the number L of candidate cells that need to be reported and the number M of beams that need to be reported for each candidate cell, and the measurement result reported by the terminal device can include the identification of the L candidate cells, and the beam identification and beam quality of the M beams of each candidate cell. The M beams can be the M beams with the best beam quality among all the beams of the candidate cell.

[0574] In the embodiments of the present application, the network device that sends the first message and the network device that sends the reference signal can be the same or different. The following is an example:

[0575] If the network device that sends the first message and the network device that sends the reference signal are the same, that is, the candidate cell and the serving cell are cells under the same network device. After the network device sends the first message for triggering the reference signal, the network device will send the triggered reference signal.

[0576] If the network device that sends the first message and the network device that sends the reference signal are different, that is, the candidate cell and the serving cell are cells under different network devices. For ease of description, the network device that sends the first message is referred to as the first network device, and the network device that sends the reference signal is referred to as the second network device. If the first network device sends the first message for triggering the reference signal, the first network device will notify the second network device to send the triggered reference signal.

[0577] The following is an example to illustrate the determination method of the triggered transmission reference signal. Exemplarily, the first message can include indication information, which can be used to determine the triggered transmission reference signal, that is, the indication information can be used to determine which reference signal or which reference signals are triggered for transmission, and correspondingly, the terminal device will measure the triggered reference signal.

[0578] The indication information can indicate at least one of the following 1-9:

[0579] 1. Identification of trigger state

[0580] The identification of the trigger state can indicate the first report configuration. The identification of the trigger state indicating the first report configuration can be understood as that the trigger state and the first report configuration have a corresponding relationship or an association relationship, and the corresponding relationship between the trigger state and the first report configuration can be pre-configured by the network device through radio resource control (RRC) signaling.

[0581] The first report configuration is associated with the first reference signal resource configuration, for example, the first report configuration includes the identification of the first reference signal resource configuration, thereby establishing the association relationship between the first report configuration and the first reference signal resource configuration.

[0582] If the indication information indicates the identification of the triggering state, the triggered reference signal determined based on the identification of the triggering state is the reference signal configured by the first reference signal resource configuration.

[0583] The identification of the triggering state can be carried in a CSI request field of the first message, for example, the identification of the triggering state can be indicated by a codepoint of the CSI request field of the first message, the first message can be a DCI. In some embodiments, the first message can also be used to trigger an aperiodic report, it can be understood that the aperiodic report is reported based on the report configuration indicated by the identification of the triggering state. The measurement result of the triggered reference signal can be included in the aperiodic report.

[0584] 2, the identification of the report configuration

[0585] The identification of the report configuration can be, for example, the identification of the LTM report configuration (LTM report config ID). The report configuration is used to configure the reporting of the measurement result of the reference signal, and the related description of the report configuration can refer to the related description of the first point in the term explanation. The report configuration is associated with the second reference signal resource configuration, for example, the report configuration includes the identification of the second reference signal resource configuration, thereby establishing the association between the report configuration and the second reference signal resource configuration.

[0586] If the indication information indicates the identification of the report configuration, the triggered reference signal determined based on the identification of the report configuration is the reference signal configured by the second reference signal resource configuration.

[0587] The indication information can directly or indirectly indicate the identification of the report configuration. It can be understood that the indication information directly indicates the identification of the report configuration includes the identification of the report configuration, and the indication information indirectly indicates the identification of the report configuration includes other identification, which can uniquely determine the identification of the report configuration, for example, the indication information includes or indicates the identification of the triggering state.

[0588] 3, the identification of the candidate cell set or the identification of the candidate cell list

[0589] The candidate cell set or the candidate cell list can include one or more candidate cells.

[0590] In the embodiments of the present application, if the indication information indicates the identity of the candidate cell set, the triggered reference signal determined based on the identity of the candidate cell set is the reference signal of the candidate cell included in the candidate cell set. For example, the indication information indicates the candidate cell set 1, the triggered reference signal is the reference signal of the candidate cell included in the candidate cell set 1, if the candidate cell set 1 includes the candidate cell 1 and the candidate cell 3, then the triggered reference signal is the reference signal of the candidate cell 1 and the reference signal of the candidate cell 3.

[0591] If the indication information indicates the identity of the candidate cell list, the triggered reference signal determined based on the identity of the candidate cell list is the reference signal of the candidate cell included in the candidate cell list.

[0592] 4. The identity of the candidate cell

[0593] The indication information can indicate the identity of one or more candidate cells.

[0594] If the indication information indicates the identity of the candidate cell, the triggered reference signal determined based on the identity of the candidate cell is the reference signal of the candidate cell corresponding to the identity of the candidate cell. For example, the indication information indicates the candidate cell 1 and the candidate cell 5, then the triggered reference signal is the reference signal of the candidate cell 1 and the reference signal of the candidate cell 5.

[0595] 5. The identity of the reference signal resource configuration

[0596] The description of the reference signal resource configuration can refer to the description of the fourth point in the term explanation. The reference signal configured by the reference signal resource configuration can be one of the following: the reference signal on the reference signal resource included in the reference signal resource set configured by the reference signal resource configuration, the reference signal on the reference signal resource configured by the reference signal resource configuration, and the reference signal on the reference signal resource included in the reference signal resource list configured by the reference signal resource configuration.

[0597] If the indication information indicates the identity of the reference signal resource configuration, the triggered reference signal determined based on the identity of the reference signal resource configuration is the reference signal configured by the reference signal resource configuration.

[0598] 6. The identity of the reference signal resource set

[0599] The description of the reference signal resource set (ResourceSet) can be found in the description of the 5th point of the term explanation. If the reference signal resource set includes one or more reference signal resource lists (ResourceList) and each reference signal resource list includes at least one reference signal resource, the reference signal resources included in the reference signal resource set are the reference signal resources included in the reference signal resource lists included in the reference signal resource set.

[0600] If the indication information indicates the identity of the reference signal resource set, the triggered reference signal determined based on the identity of the reference signal resource set is the reference signal on the reference signal resources included in the reference signal resource set.

[0601] 7. The identity of the reference signal resource list

[0602] The description of the reference signal resource list (ResourceList) can be found in the description of the 6th point of the term explanation. One reference signal resource list can include one or more reference signal resources.

[0603] If the indication information indicates the identity of the reference signal resource list, the triggered reference signal determined based on the identity of the reference signal resource list is the reference signal on the reference signal resources included in the reference signal resource list.

[0604] 8. The identity of the reference signal resource

[0605] The indication information can indicate the identity of one or more reference signal resources.

[0606] If the indication information indicates the identity of the reference signal resource, the triggered reference signal determined based on the identity of the reference signal resource is the reference signal on the reference signal resource.

[0607] 9. The identity of the serving cell

[0608] The number of serving cells can be one or more, and accordingly, the indication information can indicate the identity of one or more serving cells. In the scenario where the serving cell is configured as carrier aggregation, the number of serving cells can be multiple, for example, the multiple serving cells can include one primary cell and at least one secondary cell. Illustratively, the indication information can indicate the identity of the primary cell and the identity of one or more secondary cells, or the indication information can indicate the identity of one or more secondary cells, or the indication information can indicate the identity of the primary cell.

[0609] If the indication information indicates the identity of the serving cell, the triggered reference signal determined based on the identity of the serving cell is the reference signal configured by the reference signal resource configuration associated with the report configuration of the serving cell, or the triggered reference signal can be the reference signal of the candidate cell (also referred to as the neighbor cell) of the serving cell.

[0610] In the embodiments of the present application, the first message can be used to trigger the reference signal of at least one candidate cell. In the subsequent embodiments, the first message is used to trigger the reference signal of W candidate cells as an example, and W is a natural number. The number of the triggered reference signals of each candidate cell can be one or more. For ease of description, one triggered reference signal will be introduced as an example in the following, which can be referred to as a first reference signal, and the candidate cell where the first reference signal is located is referred to as a first candidate cell. The first candidate cell is one of the W candidate cells. It can be understood that the transmission method of other triggered reference signals can refer to the transmission method of the first reference signal:

[0611] If the transmission offset of the first reference signal is less than the first threshold, the first reference signal can be transmitted based on the beam information determined based on the preset rule. The beam information determined based on the preset rule can be referred to as a default beam. For ease of description, the beam information is represented by QCL information in the following embodiments. Specifically, if the transmission offset of the first reference signal is less than the first threshold, the first reference signal can be transmitted based on the first QCL information determined based on the preset rule. For example, the terminal device can receive the first reference signal based on the first QCL information, and the network device can transmit the first reference signal based on the first QCL information.

[0612] The transmission offset of the first reference signal can be understood as the offset between the last time unit of the time domain resource where the first message used to trigger the first reference signal is located and the first time unit of the time domain resource where the first reference signal is located.

[0613] The preset rule for determining the first QCL information is illustrated below. It should be noted that the contents in each of the following preset rules can be referred to each other, and each of the preset rules can be combined, for example, the preset rule 1 and the preset rule 2 can be combined into one preset rule. Any of the following preset rules can also be split into multiple preset rules. The present application does not limit the order of each of the preset rules.

[0614] Preset rule 1: the first QCL information is the QCL information of the first downlink signal, and the first downlink signal is a downlink signal transmitted before the reference time unit.

[0615] The QCL information of the first downlink signal can indicate which source reference signal forms a QCL relationship with the first downlink signal, and the first QCL information can be understood as the receiving beam of the source reference signal indicated in the QCL information of the first downlink signal being used to receive the first reference signal.

[0616] The reference time unit can be the first time unit of the time domain resource where the first message is located, or the reference time unit can be the first time unit of the time domain resource where the first reference signal is located. That is, the first downlink signal is a downlink signal transmitted before the first message is transmitted, or the first downlink signal is a downlink signal transmitted before the first reference signal is transmitted.

[0617] The first downlink signal can be a synchronization signal block (SSB), a TRS, a CSI-RS, etc. The CSI-RS can be a reference signal for layer 3 measurement or layer 1 measurement.

[0618] For example, the first downlink signal can be a downlink signal transmitted in a time period before the reference time unit, and the time period can include at least one time unit. The number of time units included in the time period or the length of the time period can be configured by the network or agreed upon by the protocol. The last time unit of the time period can be determined based on the reference time unit, for example, the last time unit of the time period is the first time unit before the reference time unit.

[0619] The first downlink signal can be a downlink signal that satisfies the first condition among a plurality of downlink signals transmitted before the reference time unit, and further optionally, the plurality of downlink signals can be downlink signals transmitted in a time period before the reference time unit. For ease of description, the plurality of downlink signals are referred to as Y downlink signals, and Y is a natural number greater than 1.

[0620] The Y downlink signals can include at least one type of downlink signal, for example, Y = 3, and the Y downlink signals can include two types of downlink signals, SSB and TRS. The number of SSBs can be 2, and the number of TRSs can be 1, that is, 2 SSBs and 1 TRS are transmitted in a time period before the reference time unit. It can be understood that the Y downlink signals can also be the same type of downlink signal.

[0621] The first condition is illustrated below. The first condition can include at least one of the following 1-6:

[0622] 1. The index value of the downlink signal is the smallest;

[0623] 2. The index value of the downlink signal is the largest;

[0624] 3, the index value of the reference signal resource where the downlink signal is located is the smallest;

[0625] 4, the index value of the reference signal resource where the downlink signal is located is the largest;

[0626] 5, the downlink signal measured last time;

[0627] 6, the downlink signal with the highest priority.

[0628] Any one of 1-6 included in the above first condition can be used alone, or multiple items can be used in combination, and the multiple items used in combination can be understood as the first downlink signal satisfying the condition defined in each of the multiple items. For example, Y=3, and the Y downlink signals are SSB1, SSB2 and TRS1 respectively. The first condition includes the above first item, that is, the index value of the downlink signal is the smallest. Since the index values of SSB1 and TRS1 are the smallest, the first condition can also include other conditions, for example, the first condition also includes the above sixth item, that is, the downlink signal with the highest priority. Since the priority of TRS is higher than that of SSB, TRS1 is selected as the first downlink signal.

[0629] The Y downlink signals can be distributed in at least one cell, that is, the Y downlink signals can be determined from the signals transmitted in at least one cell. The at least one cell includes the first candidate cell, or the at least one cell includes the W candidate cells, or the at least one cell includes the serving cell, or the at least one cell includes the serving cell and the first candidate cell, or the at least one cell includes the serving cell and the W candidate cells.

[0630] The preset rule 2 is that the first QCL information is the QCL information of the first downlink signal, and the first downlink signal is the downlink signal occupying the same time domain resource as the first reference signal.

[0631] For example, the first downlink signal is another downlink signal in the time unit where the first reference signal is located, and the time unit can be a symbol, that is, the first downlink signal can be another downlink signal in the symbol where the first reference signal is located.

[0632] In some embodiments, the first downlink signal can be a downlink signal occupying the same time domain resource as the first reference signal and satisfying the second condition.

[0633] The second condition is illustrated below, and the second condition can include at least one of the following 1-3:

[0634] 1, the transmission offset of the first downlink signal is greater than or equal to a second threshold.

[0635] The first downlink signal is triggered by the second message. Specifically, if the first downlink signal is an aperiodic signal, for example, the first downlink signal is an aperiodic CSI-RS, the first downlink signal can be triggered by the second message. If the first downlink signal is a physical downlink shared channel (PDSCH), the first downlink signal can be scheduled by the second message.

[0636] The transmission offset of the first downlink signal is an offset between a last time unit of the time domain resource where the second message is located and a first time of the time domain resource where the first downlink signal is located.

[0637] 2. The first downlink signal is a periodic reference signal.

[0638] For example, the first downlink signal can be a periodically transmitted CSI-RS, or an SSB, etc.

[0639] 3. The first downlink signal is a semi-persistent reference signal.

[0640] For example, the first downlink signal can be a semi-persistent CSI-RS.

[0641] The second condition above includes any one of 1-3, which can be used alone or in combination with multiple items. The combination of multiple items can be understood as the first downlink signal satisfying the condition defined in each of the multiple items.

[0642] The following is an example of the cell where the first downlink signal is located: For example, the first downlink signal can be a downlink signal transmitted by the first candidate cell, that is, the first downlink signal satisfying the second condition is determined in the same candidate cell. For another example, the first downlink signal can be a downlink signal transmitted by a candidate cell other than the first candidate cell among W candidate cells, that is, the first downlink signal can be determined in a candidate cell different from the first candidate cell where the first reference signal is located. For another example, the first downlink signal can be a downlink signal transmitted in the serving cell.

[0643] In the above preset rule 1 and / or preset rule 2, the first downlink signal can also be different names, for example, in the preset rule 1, it is the first downlink signal, and in the preset rule 2, it is the second downlink signal.

[0644] In the above preset rule 1 and / or preset rule 2, the first message for triggering the first reference signal can be carried in the first PDCCH, and the above first downlink signal can be scheduled or triggered by the second message, which can be carried in the second PDCCH. In the preset rule 1 and / or preset rule 2, the first PDCCH and the second PDCCH also need to satisfy the condition of being transmitted by the same TRP. The following illustrates a determination method for determining whether the first PDCCH and the second PDCCH are transmitted by the same TRP:

[0645] Specifically, the first PDCCH can be based on first CORESET transmission, and the second PDCCH can be based on second CORESET transmission. If the control resource set pool index value CORESETPoolIndex associated with the first CORESET is the same as the CORESETPoolIndex associated with the second CORESET, it is indicated that the first PDCCH and the second PDCCH are transmitted by the same TRP. If the control resource set pool index value CORESETPoolIndex associated with the first CORESET is different from the CORESETPoolIndex associated with the second CORESET, it is indicated that the first PDCCH and the second PDCCH are transmitted by different TRPs.

[0646] Wherein, the first PDCCH based on the first CORESET transmission can be understood as that the first PDCCH is blindly detected based on the frequency domain position and other parameters configured by the configuration information of the first CORESET. The second PDCCH based on the second CORESET transmission can be understood as that the second PDCCH is blindly detected based on the frequency domain position and other parameters configured by the configuration information of the second CORESET. The control resource set pool index value CORESETPoolIndex associated with the first CORESET can be obtained based on the configuration information of the first CORESET, and the CORESETPoolIndex associated with the second CORESET can be obtained based on the configuration information of the second CORESET. Optionally, the configuration information of the first CORESET and the configuration information of the second CORESET can be carried in the PDCCH configuration information.

[0647] It can be understood that if the first CORESET and the second CORESET are the same, the first PDCCH and the second PDCCH are transmitted by the same TRP.

[0648] In addition, when the network device does not configure the CORESETPoolIndex associated with the first CORESET and the second CORESET, it is also indicated that the first PDCCH and the second PDCCH are transmitted by the same TRP.

[0649] In the above preset rule 1 and / or preset rule 2, the control resource set pool index value CORESETPoolIndex of the first reference signal is the same as the control resource set pool index value CORESETPoolIndex of the first downlink signal.

[0650] Specifically, the control resource set pool index value CORESETPoolIndex of the first reference signal can be included in the configuration information of the first reference signal, and the control resource set pool index value CORESETPoolIndex of the first downlink signal can be included in the configuration information of the first downlink signal.

[0651] In the above preset rule 1 and / or preset rule 2, the first QCL information is the QCL information of the first downlink signal, which can be the QCL information included in the TCI state corresponding to the first downlink signal. The TCI state corresponding to the first downlink signal can be understood as the TCI state configured by the network device to the first downlink signal, or the TCI state activated by the network device for the first downlink signal, i.e., the activated TCI state of the first downlink signal, or the TCI state indicated by the network device to the first downlink signal.

[0652] If the first downlink signal corresponds to two TCI states, for example, the network device configures two TCI states to the first downlink signal, or the first downlink signal corresponds to two activated TCI states, or the network device indicates two TCI states to the first downlink signal, the first QCL information can be the QCL information in the first TCI state of the two TCI states corresponding to the first downlink signal.

[0653] Preset rule 3, the first QCL information is the QCL information in the first TCI state, and the first TCI state is one of the multiple activated TCI states of the second downlink signal. The determination method of the first TCI state is exemplarily described as follows:

[0654] Example 1, the first TCI state can be the TCI state with the minimum index value in the multiple activated TCI states of the second downlink signal, for example, the three activated TCI states are TCI state2, TCI state5, and TCI state8, and the TCI state with the minimum index value is TCI state2, i.e., TCI state2 is the first TCI state.

[0655] Example 2, the first TCI state can be the TCI state with the largest index value among the multiple activated TCI states of the second downlink signal. For example, the 3 activated TCI states are TCI state2, TCI state5, and TCI state8, respectively, and the TCI state with the largest index value is TCI state8, i.e., the first TCI state is TCI state8.

[0656] Example 3, the first TCI state can be the TCI state corresponding to the smallest TCI codepoint among the multiple activated TCI states of the second downlink signal. For example, the network device activates 8 TCI states through MAC CE, which can be referred to as the multiple activated TCI states of the second downlink signal. The 8 activated TCI states are TCI state8, TCI state2, TCI state3, TCI state13, TCI state9, TCI state18, TCI state22, and TCI state1, respectively. The 8 activated TCI states correspond to 8 TCI codepoints one by one, i.e., TCI codepoint 000 corresponds to TCI state8, TCI codepoint 001 corresponds to TCI state2, and so on. Since the smallest TCI codepoint 000 corresponds to TCI state8, the first TCI state is TCI state8.

[0657] Example 4, the first TCI state can be the TCI state corresponding to the largest TCI codepoint among the multiple activated TCI states of the second downlink signal. For example, the network device activates 8 TCI states through MAC CE as in Example 3, which can be referred to as the multiple activated TCI states of the second downlink signal. Since the largest TCI codepoint 111 corresponds to TCI state1, the first TCI state is TCI state1.

[0658] Example 5, the first TCI state can be the first activated TCI state among the two activated TCI states corresponding to the first TCI codepoint. The first TCI codepoint is the smallest TCI codepoint among the at least one TCI codepoint. For ease of description, the at least one TCI codepoint is referred to as f TCI codepoints, and f is a natural number. It can be understood that if f = 1, i.e., the number of TCI codepoints is 1, the first TCI codepoint is the one TCI codepoint.

[0659] Each of the f codepoints corresponds to two activated TCI states, that is, the f codepoints are codepoints corresponding to two activated TCI states. In the embodiment of the present application, the f codepoints can be part of the TCI codepoints or all of the TCI codepoints. For example, all TCI codepoints include 8 TCI codepoints, 2 TCI codepoints of the 8 TCI codepoints correspond to one activated TCI state respectively, and 6 TCI codepoints correspond to two activated TCI states respectively, then f = 6. In the embodiment of the present application, the minimum TCI codepoint can be determined from the 6 activated TCI states as the first TCI codepoint.

[0660] The activated TCI states corresponding to the f codepoints are all activated TCI states of the second downlink signal, that is, the multiple activated TCI states of the second downlink signal include the activated TCI states corresponding to each of the f codepoints. If the f codepoints are part of all codepoints, the multiple activated TCI states of the second downlink signal also include the activated TCI states corresponding to other TCI codepoints, and one activated TCI state corresponds to one other TCI codepoint.

[0661] It should be noted that in Example 5, each of the f codepoints corresponds to two activated TCI states as an example, each of the f codepoints can also correspond to more than two activated TCI states. That is, each of the f codepoints corresponds to multiple activated TCI states. The present application does not limit the number of activated TCI states corresponding to each of the f codepoints to be equal, and the number of activated TCI states corresponding to each of the f codepoints can also be unequal, for example, f = 3, 2 of the 3 TCI codepoints correspond to 2 activated TCI states respectively, and 1 TCI codepoint corresponds to 3 activated TCI states.

[0662] In Example 6, the first TCI state can be the first activated TCI state of the two activated TCI states corresponding to the second TCI codepoint. The second TCI codepoint is the maximum TCI codepoint in the at least one TCI codepoint, for the convenience of description, the at least one TCI codepoint is referred to as f TCI codepoints, and f is a natural number. It can be understood that if f = 1, that is, the number of TCI codepoints is 1, then the second TCI codepoint is the one TCI codepoint.

[0663] Each of the f codepoints corresponds to two activated TCI states, that is, the f codepoints are codepoints corresponding to two activated TCI states. In the embodiment of the present application, the f codepoints can be part of the TCI codepoints or all of the TCI codepoints. For example, all TCI codepoints include 8 TCI codepoints, 2 TCI codepoints of the 8 TCI codepoints correspond to one activated TCI state respectively, and 6 TCI codepoints correspond to two activated TCI states respectively, then f = 6. In the embodiment of the present application, the maximum TCI codepoint can be determined from the 6 activated TCI states as the second TCI codepoint.

[0664] The activated TCI states corresponding to the f codepoints are all activated TCI states of the second downlink signal, that is, the multiple activated TCI states of the second downlink signal include the activated TCI states corresponding to each of the f TCI codepoints. If the f TCI codepoints are part of all codepoints, the multiple activated TCI states of the second downlink signal also include the activated TCI states corresponding to other TCI codepoints, and one activated TCI state corresponds to one other TCI codepoint.

[0665] It should be noted that in example 6, each of the f TCI codepoints corresponds to two activated TCI states as an example, each of the f TCI codepoints can also correspond to more than two activated TCI states. That is, each of the f TCI codepoints corresponds to multiple activated TCI states. The present application does not limit the number of activated TCI states corresponding to each of the f TCI codepoints to be equal, and the number of activated TCI states corresponding to each of the TCI codepoints can also be unequal, for example, f = 3, 2 of the 3 TCI codepoints correspond to 2 activated TCI states respectively, and 1 TCI codepoint corresponds to 3 activated TCI states.

[0666] In various examples of the preset rule 3, the second downlink signal can be a downlink signal transmitted by the first candidate cell, or the second downlink signal can be a downlink signal transmitted by one of the W candidate cells other than the first candidate cell, or the second downlink signal can be a downlink signal transmitted by the serving cell.

[0667] Preset rule 4, the first QCL information is the QCL information in the second TCI state, the second TCI state is the TCI state of the third CORESET, and the third CORESET is a CORESET monitored in the last at least one time slot.

[0668] The TCI state of the third CORESET can be a TCI state configured or activated by the network device for the third CORESET. If the third CORESET corresponds to one TCI state, the second TCI state is the one TCI state. If the third CORESET corresponds to one TCI state or two TCI states, the second TCI state is the first TCI state of the two TCI states. The terminal device can monitor the PDCCH on the CORESET according to the receiving beam of the source reference signal indicated by the second TCI state.

[0669] The first message for triggering the first reference signal can be carried in the first PDCCH, and the first PDCCH can be transmitted based on the first CORESET. The CORESETPoolIndex associated with the third CORESET is the same as the CORESETPoolIndex associated with the first CORESET, or when the network device does not configure the CORESETPoolIndex associated with the first CORESET and the third CORESET, it means that the third CORESET and the first CORESET correspond to the same TRP.

[0670] Here, the first PDCCH based on the first CORESET can be understood as that the first PDCCH is blindly detected based on the frequency domain position and other parameters configured by the configuration information of the first CORESET.

[0671] The following illustrates the cell where the third CORESET is located: For example, the third CORESET can be a CORESET monitored by the terminal device in the first candidate cell, or the third CORESET can be a CORESET monitored by the terminal device in one candidate cell of the W candidate cells except the first candidate cell, or the third CORESET can be a CORESET monitored by the terminal device in the W candidate cells, or the third CORESET can be a CORESET monitored by the serving cell.

[0672] If the terminal device monitors multiple CORESETs in the latest time slot, the third CORESET can be the CORESET with the smallest index value in the multiple CORESETs, or the third CORESET can be the CORESET with the largest index value in the multiple CORESETs.

[0673] The plurality of CORESETs can be CORESETs monitored by the terminal device in the first candidate cell in the last at least one slot, or the plurality of CORESETs can be CORESETs monitored by the terminal device in the W candidate cells in the last at least one slot, W being greater than 1, or the plurality of CORESETs can be CORESETs monitored by the terminal device in the serving cell in the last at least one slot, or the plurality of CORESETs can be CORESETs monitored by the terminal device in the serving cell and the first candidate cell in the last at least one slot, or the plurality of CORESETs can be CORESETs monitored by the terminal device in the W candidate cells and the serving cell in the last at least one slot, W being a natural number.

[0674] The first QCL information is determined according to QCL information in a third TCI state, the third TCI state being a target TCI state of a target cell indicated in the cell switching command, and the target cell being one of the W candidate cells.

[0675] The first candidate cell can be the same as or different from the target cell. The first QCL information being determined according to QCL information in the third TCI state can be understood as the first QCL information being determined according to a source reference signal in the third TCI state. For example, QCL information of the source reference signal in the third TCI state can be determined as the first QCL information, or QCL information of another reference signal having a QCL relationship with the source reference signal in the third TCI state can be determined as the first QCL information.

[0676] If the target TCI state includes one TCI state, the third TCI state is the one TCI state. If the target TCI state includes two TCI states, the third TCI state can be the first TCI state of the two TCI states.

[0677] The first QCL information is determined according to QCL information in a fourth TCI state, the fourth TCI state being a TCI state corresponding to a reference signal resource of the first candidate cell indicated in the LTM beam report.

[0678] The LTM beam report can indicate one or more reference signal resources of the first candidate cell, and the TCI state corresponding to the reference signal resource is a TCI state containing a source reference signal same as the reference signal resource, or a TCI state containing a source reference signal having a QCL relationship with the reference signal resource. If the LTM beam report indicates one reference signal resource of the first candidate cell, the fourth TCI state is the TCI state corresponding to the one reference signal resource. If the LTM beam report indicates multiple reference signal resources of the first candidate cell, the fourth TCI state is one of the TCI states corresponding to the multiple reference signal resources, for example, the fourth TCI state is the TCI state corresponding to the reference signal resource with the best measurement result among the multiple reference signal resources.

[0679] The LTM beam report can indicate a reference signal resource pair of the first candidate cell, and the reference signal resource pair includes two reference signal resources, and the TCI state pair includes two TCI states. The two reference signal resources in the reference signal resource pair correspond to different TCI states in the TCI state pair respectively. It can be understood that the LTM beam report can indicate one or more reference signal resource pairs of the first candidate cell, and each reference signal resource pair corresponds to a TCI state pair. Each reference signal resource pair includes two reference signal resources, and each TCI state pair includes two TCI states, and the reference signal resource pair and the TCI state pair are in a one-to-one correspondence. The two TCI states corresponding to each reference signal resource pair can be used by the network device to schedule the terminal device to perform two-TRP simultaneous transmission, wherein each TCI state is used to determine the beam information of one TRP. The fourth TCI state in the embodiment of the application can be the first TCI state in the TCI state pair.

[0680] It can be understood that the LTM beam report can also indicate a single TCI state corresponding to a single reference signal resource of the first candidate cell.

[0681] The first QCL information can be determined according to the QCL information in the fourth TCI state. For example, the QCL information of the source reference signal in the fourth TCI state can be determined as the first QCL information, or the QCL information of another reference signal having a QCL relationship with the source reference signal in the fourth TCI state can be determined as the first QCL information.

[0682] The preset rules 1 to 6 can be used alone or in combination. The following examples illustrate the use scenarios of the above-mentioned preset rules. It can be understood that the following scenarios are only examples:

[0683] For example, the execution order of the above preset rules can be set, and the preset rules can be selected according to the execution order to determine the first QCL information. For example, the execution order of the above preset rule 1 to preset rule 6 is preset rule 1, preset rule 2, preset rule 3, preset rule 4, preset rule 5, and preset rule 6. If the first QCL information cannot be determined based on the preset rule 1, the first QCL information can be determined based on the preset rule 2. If the first QCL information cannot be determined based on the preset rule 2, the first QCL information can be determined based on the preset rule 3, and so on.

[0684] In some embodiments, when a preset rule is used alone, one or more premise conditions can be used to determine which preset rule is used; when multiple preset rules are used jointly, one or more premise conditions can be used to determine the execution order of the multiple preset rules. In the embodiments of the present application, the premise conditions are used to limit the execution conditions of the preset rules, that is, the first QCL information is determined based on the corresponding preset rule only when one or more premise conditions are met, or the first QCL information is determined based on the corresponding preset rule only when one or more first premise conditions are met and one or more second premise conditions are not met. The one or more first premise conditions and the one or more second premise conditions can be understood as limiting the execution conditions of the preset rules.

[0685] The premise conditions are illustrated below, and other premise conditions can also be understood:

[0686] Premise condition 1: The network device configures each CORESETPoolIndex to enable the default TCI state for the terminal device;

[0687] Premise condition 2: There are two different CORESETPoolIndex values in the CORESET in the PDCCH configuration information configured by the network device for the terminal device;

[0688] Premise condition 3: There are other downlink signals on the time domain resources (such as symbols) of the first reference signal;

[0689] Premise condition 4: There are no other downlink signals on the time domain resources (such as symbols) of the first reference signal;

[0690] Premise condition 5: The network device does not configure each CORESETPoolIndex to enable the default TCI state for the terminal device, or there are no two different CORESETPoolIndex values in the CORESET in the PDCCH configuration information configured by the network device for the terminal device;

[0691] Premise condition 6: The network device configures two default TCI states for the terminal device;

[0692] Condition 7: At least one TCI codepoint is mapped to two TCI states;

[0693] Condition 8: The network device does not configure the terminal device with enabling two default TCI states;

[0694] Condition 9: Each TCI codepoint is mapped to one TCI state;

[0695] Condition 10: The network device configures the terminal device with PDCCH SFN scheme as Single Frequency Network (SFN) scheme A or SFN scheme B;

[0696] Condition 11: The network device activates two TCI states for a CORESET;

[0697] Condition 12: The network device does not configure the terminal device with PDCCH SFN scheme;

[0698] Condition 13: The network device activates one TCI state for a CORESET;

[0699] Condition 14: The network device does not configure the terminal device with downlink or joint TCI state list;

[0700] Condition 15: At least one CORESET is configured in the Bandwith Part (BWP) where the first reference signal is located;

[0701] Condition 16: The network device configures the terminal device with downlink or joint TCI state list;

[0702] Condition 17: No CORESET is configured in the BWP where the first reference signal is located;

[0703] Condition 18: The TCI state indicated by the network device for the terminal device is associated with the physical cell identity of a non-serving cell;

[0704] Condition 19: The TCI state indicated by the network device for the terminal device is associated with the physical cell identity of a serving cell;

[0705] Condition 20: The network device configures the terminal device with cross-carrier scheduling enabling default beam;

[0706] Condition 21: There is downlink signal transmission before the reference time unit, and the cell to which the downlink signal belongs is as described in the preset rule 1;

[0707] Condition 22: The network device configures LTM candidate cell;

[0708] Precondition 23: The network device sends a cell handover command to the terminal device;

[0709] Precondition 24: The network device configures LTM reporting;

[0710] Precondition 25: The network device indicates a TCI state of a candidate cell for the terminal device;

[0711] Precondition 26: There is no downlink signal transmission before the reference time unit, and the cell to which the downlink signal belongs is as described in the preset rule 1.

[0712] In some embodiments, when at least one of the preconditions 1 to 26 is met, the first QCL information is determined based on the preset rule 1, that is, the preset rule 1 is executed. For example, when at least one of the precondition 1, the precondition 2, the precondition 4, the precondition 5, the precondition 6, the precondition 7, the precondition 8, the precondition 9, the precondition 14, the precondition 16, the precondition 18, the precondition 19, the precondition 21, the precondition 22, the precondition 24, and the precondition 25 is met, the preset rule 1 is executed. The following examples are given:

[0713] Example 1: When the precondition 4 is met, the preset rule 1 is executed.

[0714] Example 2: When the precondition 21 is met, the preset rule 1 is executed.

[0715] Example 3: When the precondition 4 and the precondition 21 are met, the preset rule 1 is executed.

[0716] In any of the above examples 1 to 3, the met preconditions can further include the precondition 22 and the precondition 24.

[0717] In some embodiments, when at least one of the preconditions 1 to 26 is met, the first QCL information is determined based on the preset rule 2, that is, the preset rule 2 is executed. For example, when at least one of the precondition 1, the precondition 2, the precondition 3, the precondition 5, the precondition 6, the precondition 7, the precondition 8, the precondition 9, the precondition 10, the precondition 11, the precondition 12, the precondition 13, the precondition 22, the precondition 23, the precondition 24, the precondition 25, and the precondition 26 is met, the preset rule 2 is executed. The following examples are given:

[0718] Example 1: When the precondition 3 is met, the rule 2 is executed.

[0719] Example 2: When the precondition 3, the precondition 1, and the precondition 2 are met, the rule 2 is executed.

[0720] Example 3: When preconditions 3 and 5 are met, rule 2 is executed.

[0721] Example 4: When preconditions 3, 5, and 6 are met, rule 2 is executed.

[0722] Example 5: When preconditions 3, 5, 6, and 7 are met, rule 2 is executed.

[0723] Example 6: When preconditions 3, 5, and 10 are met, rule 2 is executed.

[0724] Example 7: When preconditions 3, 5, 10, and 11 are met, rule 2 is executed.

[0725] Example 8: When preconditions 3, 5, and 12 are met, rule 2 is executed.

[0726] Example 9: When preconditions 3, 5, 12, and 13 are met, rule 2 is executed.

[0727] For example, in any of the examples 1 to 9 above, the preconditions may also include preconditions 22 and 24.

[0728] For example, in any of the examples 1 to 9 above, the preconditions may also include precondition 26.

[0729] For example, in any of the examples 1 to 9 above, the preconditions may also include precondition 22 and precondition 24.

[0730] In some embodiments, when at least one of preconditions 1 to 26 is met, the first QCL information is determined based on preset rule 3, that is, preset rule 3 is executed. For example, preset rule 3 is executed when at least one of preconditions 1, 2, 4, 5, 6, 7, 12, 13, 20, 22, 23, 24, 25, and 26 is met. Examples are given below:

[0731] Example 1: When precondition 7 is met, the preset rule 3 is executed.

[0732] Example 2: When preconditions 7 and 5 are met, the preset rule 3 is executed.

[0733] Example 3: When preconditions 7, 5, and 8 are met, the preset rule 3 is executed.

[0734] Example 4, when the preconditions 7, precondition 4 are satisfied, the preset rule 3 is executed.

[0735] Example 5, when the preconditions 7, precondition 4, precondition 5 are satisfied, the preset rule 3 is executed.

[0736] Example 6, when the preconditions 7, precondition 4, precondition 8 are satisfied, the preset rule 3 is executed.

[0737] Example 7, when the preconditions 7, precondition 4, precondition 5, precondition 8 are satisfied, the preset rule 3 is executed.

[0738] Example 8, when the precondition 9 is satisfied, the preset rule 3 is executed.

[0739] Example 9, when the preconditions 9 and precondition 5 are satisfied, the preset rule 3 is executed.

[0740] Example 10, when the preconditions 9, precondition 5, precondition 8 are satisfied, the preset rule 3 is executed.

[0741] Example 11, when the preconditions 9, precondition 4 are satisfied, the preset rule 3 is executed.

[0742] Example 12, when the preconditions 9, precondition 4, precondition 5 are satisfied, the preset rule 3 is executed.

[0743] Example 13, when the preconditions 9, precondition 4, precondition 8 are satisfied, the preset rule 3 is executed.

[0744] Example 14, when the preconditions 9, precondition 4, precondition 5, precondition 8 are satisfied, the preset rule 3 is executed.

[0745] Example 15, when the precondition 20 is satisfied, the preset rule 3 is executed.

[0746] Illustratively, in any of the above Examples 1-14, the satisfied preconditions can further include the precondition 20.

[0747] Illustratively, in any of the above Examples 1-15, the satisfied preconditions can further include the preconditions 22 and 24.

[0748] In some embodiments, when at least one of the preconditions 1 to 26 is satisfied, the first QCL information is determined based on the preset rule 4, i.e., the preset rule 4 is performed. For example, when at least one of the precondition 1, the precondition 2, the precondition 4, the precondition 5, the precondition 8, the precondition 9, the precondition 10, the precondition 11, the precondition 12, the precondition 13, the precondition 14, the precondition 15, the precondition 16, the precondition 18, the precondition 22, the precondition 23, the precondition 24, the precondition 25, and the precondition 26 is satisfied, the preset rule 4 is performed. For example, the following is given:

[0749] Example 1: When the precondition 4 is satisfied, the preset rule 4 is performed.

[0750] Example 2: When the precondition 4, the precondition 1, and the precondition 2 are satisfied, the preset rule 4 is performed.

[0751] Example 3: When the precondition 4, the precondition 10, and the precondition 11 are satisfied, the preset rule 4 is performed.

[0752] Example 4: When the precondition 4, the precondition 10, and the precondition 13 are satisfied, the preset rule 4 is performed.

[0753] Example 5: When the precondition 4 and the precondition 5 are satisfied, the preset rule 4 is performed.

[0754] Example 6: When the precondition 4 and the precondition 8 are satisfied, the preset rule 4 is performed.

[0755] Example 7: When the precondition 4, the precondition 5, and the precondition 8 are satisfied, the preset rule 4 is performed.

[0756] Example 8: When the precondition 4 and the precondition 12 are satisfied, the preset rule 4 is performed.

[0757] Example 9: When the precondition 14 is satisfied, the preset rule 4 is performed.

[0758] Example 10: When the precondition 14 and the precondition 19 are satisfied, the preset rule 4 is performed.

[0759] For example, in any one of the above examples 1 to 8, the satisfied preconditions can further include the precondition 15, or can further include the precondition 15 and the precondition 11, or can further include the precondition 15 and the precondition 13.

[0760] For example, in any one of the above examples 1 to 10, the satisfied preconditions can further include the precondition 22 and the precondition 24.

[0761] In some embodiments, when at least one of the preconditions 1-26 is satisfied, the first QCL information is determined based on the preset rule 4, i.e., the preset rule 5 is performed. For example, when at least one of the precondition 1, the precondition 2, the precondition 4, the precondition 5, the precondition 6, the precondition 7, the precondition 8, the precondition 9, the precondition 10, the precondition 11, the precondition 12, the precondition 13, the precondition 14, the precondition 15, the precondition 16, the precondition 17, the precondition 18, the precondition 19, the precondition 20, the precondition 22, the precondition 23, the precondition 24, the precondition 25, the precondition 26 is satisfied, the preset rule 5 is performed. For example:

[0762] Example 1: When the precondition 22, the precondition 23, and the precondition 24 are satisfied, the preset rule 5 is performed.

[0763] Example 2: When the precondition 22, the precondition 24, and the precondition 25 are satisfied, the preset rule 5 is performed.

[0764] In the above example 1 or example 2, the satisfied preconditions can further include the precondition 4, or can further include the precondition 26, or can further include the precondition 4 and the precondition 26.

[0765] In some embodiments, when at least one of the preconditions 1-26 is satisfied, the first QCL information is determined based on the preset rule 6, i.e., the preset rule 6 is performed. For example, when at least one of the precondition 1, the precondition 2, the precondition 4, the precondition 5, the precondition 6, the precondition 7, the precondition 8, the precondition 9, the precondition 10, the precondition 11, the precondition 12, the precondition 13, the precondition 14, the precondition 15, the precondition 16, the precondition 17, the precondition 18, the precondition 19, the precondition 20, the precondition 22, the precondition 23, the precondition 24, the precondition 25, the precondition 26 is satisfied, the preset rule 6 is performed. For example:

[0766] Example 1: When the precondition 22 and the precondition 24 are satisfied, the preset rule 6 is performed.

[0767] For example, in the example 1, the satisfied preconditions can further include the precondition 4, or can further include the precondition 26, or can further include the precondition 4 and the precondition 26.

[0768] In some implementations, the preset rule to be executed can be determined according to one or more prerequisite conditions, which not only means that the preset rule to be executed is determined when the prerequisite conditions are met, but also can include that the preset rule to be executed is determined when the preset conditions are not met. For example, in the case that one or more first prerequisite conditions are met and one or more second prerequisite conditions are not met, a preset rule is executed, and the one or more first prerequisite conditions and the one or more second prerequisite conditions can be predefined in relation to the preset rule to be executed. The following examples illustrate the nested relationship between the preset rule to be executed and the preset conditions to be met and / or the preset conditions not to be met.

[0769] When prerequisite condition 1 and prerequisite condition 2 are met at the same time, if prerequisite condition 3 is also met, preset rule 2 is executed, and if prerequisite condition 3 is not met, preset rule 4 is executed.

[0770] When prerequisite condition 1 and prerequisite condition 2 are not met, but prerequisite condition 6 is met, and further prerequisite condition 3 is met, rule 2 is executed, and if prerequisite condition 3 is not met, preset rule 3 is executed.

[0771] When prerequisite condition 1, prerequisite condition 2, and prerequisite condition 6 are not met, but prerequisite condition 10 and prerequisite condition 11 are met, and further prerequisite condition 3 is met, preset rule 2 is executed. If prerequisite condition 3 is not met, preset rule 4 is executed.

[0772] When prerequisite condition 1, prerequisite condition 2, prerequisite condition 6, prerequisite condition 10, and prerequisite condition 11 are not met, and prerequisite condition 3 is met, preset rule 2 is executed.

[0773] When prerequisite condition 1, prerequisite condition 2, prerequisite condition 6, prerequisite condition 10, prerequisite condition 11, and prerequisite condition 3 are not met, but prerequisite condition 14 and prerequisite condition 15 are met, preset rule 4 is executed.

[0774] When prerequisite condition 1, prerequisite condition 2, prerequisite condition 6, prerequisite condition 10, prerequisite condition 11, prerequisite condition 3, and prerequisite condition 14 are not met, but prerequisite condition 15, prerequisite condition 16, and prerequisite condition 18 are met, preset rule 4 is executed.

[0775] When prerequisite condition 1, prerequisite condition 2, prerequisite condition 6, prerequisite condition 10, prerequisite condition 11, prerequisite condition 3, prerequisite condition 14, prerequisite condition 15, and prerequisite condition 18 are not met, but prerequisite condition 16 and prerequisite condition 19 are met, preset rule 5 is executed.

[0776] When the precondition 1, the precondition 2, the precondition 6, the precondition 10, the precondition 11, the precondition 3, the precondition 14, the precondition 15, the precondition 16, the precondition 18, the precondition 19, and the precondition 20 are not met, but the precondition 23 or the precondition 25 is met, the preset rule 5 is executed.

[0777] When the precondition 1, the precondition 2, the precondition 6, the precondition 10, the precondition 11, the precondition 3, the precondition 14, the precondition 15, the precondition 16, the precondition 18, the precondition 19, the precondition 20, and the precondition 23 or the precondition 25 are not met, but the precondition 24 is met, the preset rule 6 is executed.

[0778] When the precondition 1, the precondition 2, the precondition 6, the precondition 10, the precondition 11, the precondition 3, the precondition 14, the precondition 15, the precondition 16, the precondition 18, the precondition 19, the precondition 20, and the precondition 23 or the precondition 25 are not met, but the precondition 24 is met, the preset rule 6 is executed.

[0779] After the first QCL information of the first reference signal of the first candidate cell is determined based on the preset rule, it can be understood that the QCL information of other triggered reference signals can also be determined according to the preset rule.

[0780] In the embodiment of the application, the first candidate cell where the first reference signal is located can be configured as carrier aggregation, for example, the first candidate cell and the second candidate cell are configured as carrier aggregation. The second reference signal of the second candidate cell is scheduled or triggered by the third message. The third message can be the same as or different from the first message. If the third message is the same as the first message, it means that the second candidate cell can be one of the W candidate cells. If the third message is different from the first message, it means that the second reference signal of the second candidate cell and the first reference signal of the first candidate cell are triggered by different messages.

[0781] If the transmission offset of the second reference signal is less than the third threshold, that is, the second reference signal also needs to be transmitted based on the QCL information determined by the preset rule, for the convenience of description, the QCL information determined for the second reference signal based on the preset rule is called second QCL information. The transmission offset of the second reference signal is the offset between the last time unit of the time domain resource where the third message is located and the first time unit of the time domain resource where the second reference signal is located.

[0782] If the second QCL information is inconsistent with the first QCL information, the first QCL information and the second QCL information can be unified, and it can be understood that the second QCL information can also not be unified with the first QCL information, for example, the terminal device measures the first reference signal based on the first QCL information, and the terminal device measures the second reference signal based on the second QCL information.

[0783] The following describes a manner of unifying the first QCL information and the second QCL information, that is, the first reference signal and the second reference signal are transmitted based on the same QCL information, which can be the first QCL information or the second QCL information, and the following takes the first reference signal and the second reference signal being transmitted based on the first QCL information as an example, that is, the terminal device measures the first reference signal and the second reference signal based on the first QCL information.

[0784] The number of the second candidate cells configured in carrier aggregation with the first candidate cell can be at least one, and all the triggered reference signals of the second candidate cells are transmitted based on the first QCL information when the transmission offset is less than the third threshold, which needs to meet at least one of the following conditions:

[0785] 1. The cell index value of the first candidate cell is less than the index value of each second candidate cell.

[0786] That is, the triggered reference signals of the multiple candidate cells configured in carrier aggregation are all transmitted based on the QCL information of the candidate cell with the smallest cell index value.

[0787] 2. The cell index value of the first candidate cell is greater than the index value of each second candidate cell.

[0788] That is, the triggered reference signals of the multiple candidate cells configured in carrier aggregation are all transmitted based on the QCL information of the candidate cell with the largest cell index value.

[0789] In the embodiment of the application, the first QCL information is determined based on the preset rule only when the transmission offset of the first reference signal is less than the first threshold, and the following exemplarily describes a manner of determining the first threshold:

[0790] Example 1: The first threshold can be reported by the terminal device and / or configured by the network device.

[0791] The first threshold can be, for example, a beam switching time (beamSwitchTiming).

[0792] The terminal device can report the first threshold to the network device, and the network device can configure the first threshold to the terminal device after receiving the first threshold.

[0793] Example 2, the first threshold can be determined based on the fourth threshold and an increment value.

[0794] The fourth threshold can be, for example, a beam switching time (beamSwitchTiming). The first threshold is determined based on the fourth threshold and an increment value, for example, the first threshold = the fourth threshold + the increment value.

[0795] The increment value can be reported by the terminal device to the network device, and / or the increment value can be configured by the network device to the terminal device, or the increment value can be agreed by a protocol. All candidate cells can correspond to the same increment value, or one candidate cell can correspond to one increment value.

[0796] The above example 1 and example 2 can be a determination manner of the first threshold when the subcarrier spacing of the serving cell is the same as the subcarrier spacing of the first candidate cell where the triggered first reference signal is located.

[0797] In some implementations, if the subcarrier spacing of the serving cell is different from the subcarrier spacing of the first candidate cell where the triggered first reference signal is located, the following example illustrates a determination manner of the first threshold:

[0798] Determination manner 1, determining a beam switching time delay d (beam switching timing delay), and determining the first threshold based on the beam switching time delay d.

[0799] One implementation, the beam switching time delay d can be determined based on a first correspondence relationship, the first correspondence relationship indicating a one-to-one correspondence relationship between the subcarrier spacing of the serving cell and the beam switching time delay d, and the first correspondence relationship can be predefined.

[0800] As shown in Table 1, a schematic diagram of the first correspondence relationship, μ PDCCH represents the subcarrier configuration of the serving cell, the subcarrier configuration can configure one subcarrier spacing, d represents the beam switching time delay, Table 1 takes 3 subcarrier configurations as an example, one subcarrier configuration corresponds to one value of d, X1, X2 and X3 can be different from each other, or X1, X2 and X3 can have the same value:

[0801] Table 1

[0802] Another implementation, the beam switching time delay d can be determined based on a second correspondence relationship and an increment value, the second correspondence relationship indicating a one-to-one correspondence relationship between the subcarrier spacing of the serving cell and the candidate beam switching time delay d1. The second correspondence relationship can be predefined.

[0803] As shown in Table 2, a schematic diagram of the second correspondence relationship, μ PDCCHZ1, Z2 and Z3 can be different from each other, or Z1, Z2 and Z3 can have the same value, Z1 can be less than X1 in Table 1, Z2 can be less than X2 in Table 1, and Z3 can be less than X3 in Table 1:

[0804] Table 2

[0805] In an embodiment of the present application, the manner of determining the beam switching delay d based on the second correspondence relationship and the increment value can be that the candidate beam switching delay corresponding to the subcarrier spacing of the serving cell is determined based on the second correspondence relationship, and then the beam switching delay d is determined based on the candidate beam switching delay and the increment value, for example, d = candidate beam switching delay + increment value.

[0806] In one implementation, the increment value can be the increment value corresponding to the first candidate cell, that is, a corresponding increment value is configured for each candidate cell. In another implementation, the increment value can be an increment value common to all candidate cells.

[0807] The increment value can be predefined or configured by the network device.

[0808] In determination manner 2, the first subcarrier spacing is determined, and the first threshold is determined based on the first subcarrier spacing.

[0809] The manner of determining the first subcarrier spacing is exemplarily described as follows:

[0810] In example 1, the first subcarrier spacing can be the subcarrier spacing of the first candidate cell. If W is a natural number greater than 1, that is, the threshold of each candidate cell in the W candidate cells is determined based on the subcarrier spacing of each candidate cell.

[0811] In example 2, the first subcarrier spacing is the minimum subcarrier spacing in the W candidate cells. Specifically, the subcarrier spacing of each candidate cell in the W candidate cells is determined, and the minimum subcarrier spacing in the subcarrier spacings of the W candidate cells is determined as the first subcarrier spacing. It can be understood that if W = 1, the first subcarrier spacing is the subcarrier spacing of the one candidate cell.

[0812] In example 3, the first subcarrier spacing is the maximum subcarrier spacing in the W candidate cells. Specifically, the subcarrier spacing of each candidate cell in the W candidate cells is determined, and the maximum subcarrier spacing in the subcarrier spacings of the W candidate cells is determined as the first subcarrier spacing. It can be understood that if W = 1, the first subcarrier spacing is the subcarrier spacing of the one candidate cell.

[0813] The first subcarrier spacing is determined in the above example 1 to example 3, and the first threshold can be further determined based on the first subcarrier spacing and the subcarrier spacing of the serving cell.

[0814] It can be understood that the above determination mode 1 and determination mode 2 can be used alone or jointly, and if the determination mode 1 and determination mode 2 are used jointly, it can be understood that the beam switching delay d is determined based on the determination mode 1, the first subcarrier spacing is determined based on the determination mode 2, and the first threshold is further determined based on the beam switching delay d and the first subcarrier spacing. For example, the first threshold can be calculated by the following formula:

[0815] Wherein, beamSwitchTiming is the beam switching time, which can be reported by the terminal device, d is the beam switching delay, which can be obtained based on the above determination mode 1, μ1 is determined based on the first subcarrier spacing, and μ2 is determined according to the subcarrier spacing of the serving cell.

[0816] The determination method of the transmission offset of the first reference signal is introduced below, and the determination method of the transmission offset of other reference signals triggered by the first message can refer to the determination method of the transmission offset of the first reference signal:

[0817] The transmission offset of the first reference signal is the offset between the last time unit of the time domain resource where the first message is located and the first time unit of the time domain resource where the first reference signal is located.

[0818] In an implementation mode, the transmission offset of the first reference signal can be configured by the network device. For example, the network device can configure the transmission offset through the aperiodic triggering offset field “aperiodicTriggeringOffset”.

[0819] In another implementation mode, the transmission offset of the first reference signal can be determined based on a triggering offset value and an increment value. The triggering offset value can be the length of the transmission offset configured by the network device. For example, the network device can configure the triggering offset value through the aperiodic triggering offset field “aperiodicTriggeringOffset”. The increment value can be predefined or configured by the network device, and the increment value refers to the value added on the basis of the triggering offset value, for example, the transmission offset = triggering offset value + increment value.

[0820] The configuration mode of the increment value is illustrated below:

[0821] Configuration mode 1: The increment value is carried in the LTM configuration information.

[0822] The LTM configuration information configures a plurality of candidate cells, and the plurality of candidate cells include the first candidate cell where the first reference signal is located.

[0823] In an implementation, the LTM configuration information includes one delta value, and the plurality of candidate cells configured by the LTM configuration information can share the one delta value, that is, the transmission offset of the triggered reference signal of each candidate cell in the plurality of candidate cells is determined based on the same delta value.

[0824] In another implementation, the LTM configuration information includes a plurality of delta values corresponding to the plurality of candidate cells respectively, that is, the LTM configuration information configures one delta value for each candidate cell, and the transmission offset of the triggered reference signal of each candidate cell is determined based on the delta value of the candidate cell.

[0825] In the configuration mode 1, the delta value can be carried in the ltm-CandidateToAddModList in the LTM configuration information, or the delta value can be carried in a new list in the LTM configuration information, and the new list includes a plurality of delta values corresponding to the plurality of candidate cells respectively.

[0826] In the configuration mode 2, the delta value is carried in the configuration information of the first candidate cell.

[0827] The configuration information of the first candidate cell configures a plurality of reference signal resources of the first candidate cell, and the plurality of reference signal resources are aperiodic reference signal resources, and the reference signal resource where the first reference signal is located is one of the plurality of reference signal resources.

[0828] In an implementation, the configuration information of the first candidate cell includes one delta value, and all aperiodic reference signal resources of the first candidate cell can share the delta value, that is, when the reference signal on each reference signal resource in the plurality of reference signal resources is triggered, the transmission offset is determined based on the same delta value.

[0829] In another implementation, the configuration information of the first candidate cell includes a plurality of delta values corresponding to the plurality of aperiodic reference signal resources respectively, that is, the configuration information of the first candidate cell configures one delta value for each reference signal resource, and accordingly, the configuration information of the first candidate cell includes a plurality of delta values.

[0830] In another implementation, the configuration information of the first candidate cell includes a plurality of delta values corresponding to a plurality of aperiodic reference signal resource sets respectively, that is, the configuration information of the first candidate cell configures one delta value for each reference signal resource set. The reference signal resources contained in the plurality of reference signal resource sets are the plurality of reference signal resources configured for the first candidate cell.

[0831] In the configuration manner 2, the delta value can be carried in a reference signal resource list in the configuration information of the first candidate cell, for example, the reference signal resource list is ltm-nzp-CSI-RS-ResourceToAddModList, or the delta value can be carried in a reference signal resource set list in the configuration information of the first candidate cell, for example, the reference signal resource set list is ltm-nzp-CSI-RS-ResourceSetToAddModList, or the delta value can be carried in a reference signal resource configuration in the configuration information of the first candidate cell, for example, the reference signal resource configuration is LTM-CSI-RS-Config, or the delta value can be carried in an addition list in the configuration information of the first candidate cell, and the addition list includes one or more delta values.

[0832] In the configuration manner 3, the delta value is carried in the report configuration.

[0833] The report configuration is used for configuring the reporting of the measurement result of the reference signal. The transmission offset of all the aperiodic reference signals of all the candidate cells reporting the measurement result based on the report configuration is determined based on the delta value.

[0834] The report configuration can be associated with one or more reference signal resource configurations. The aperiodic reference signals configured by the one or more reference signal resource configurations associated with the report configuration can all determine the transmission offset based on the same delta value, or the multiple reference signal resource configurations associated with the report configuration respectively correspond to one delta value, and the aperiodic reference signals configured by each reference signal resource configuration determine the transmission offset based on the delta value corresponding to the reference signal resource configuration.

[0835] In the configuration manner 4, the delta value is carried in the reference signal resource configuration.

[0836] The reference signal resource configuration can be used for configuring the reference signal. For the related description of the reference signal resource configuration, reference can be made to the related description of the fourth point of the term explanation. The reference signal configured by the reference signal resource configuration includes the first reference signal.

[0837] In an implementation manner, the reference signal resource configuration includes one delta value, and all the aperiodic reference signals of all the candidate cells configured by the reference signal resource configuration can share the delta value, that is, when each reference signal configured by the reference signal resource configuration is triggered, the transmission offset is determined based on the same delta value.

[0838] In another implementation, the reference signal resource configuration includes multiple incremental values corresponding to multiple reference signal resource sets respectively, that is, the reference signal resource configuration configures an incremental value for each reference signal resource set respectively, and the transmission offset is determined based on the same incremental value when the reference signals on the reference signal resources in the same reference signal resource set are triggered.

[0839] In another implementation, the reference signal resource configuration includes multiple incremental values corresponding to multiple reference signal resources respectively, that is, the reference signal resource configuration configures an incremental value for each reference signal resource respectively.

[0840] In another implementation, the reference signal resource configuration includes multiple incremental values corresponding to multiple reference signal resource lists respectively, that is, the reference signal resource configuration configures an incremental value for each reference signal resource list respectively.

[0841] In another implementation, the reference signal resource configuration includes multiple incremental values corresponding to multiple candidate cells respectively, that is, the reference signal resource configuration configures an incremental value for each candidate cell respectively.

[0842] In another implementation, the reference signal resource configuration includes multiple incremental values corresponding to multiple candidate cell lists respectively, that is, the reference signal resource configuration configures an incremental value for each candidate cell list respectively.

[0843] In the configuration mode 4, the incremental value can be carried in the reference signal resource list of the reference signal resource configuration, or in the candidate cell list, or in the new list including one or more incremental values.

[0844] The transmission offset of the triggered reference signal in the embodiment of the application needs to meet the following condition: part or all of the time domain resources where the triggered reference signal is located are located in the measurement interval. Thus, the terminal device can measure the triggered reference signal in the measurement interval. The measurement interval can be configured by the network device, and the terminal device can only measure the reference signal in the measurement interval.

[0845] For ease of description, the following will take part or all of the time domain resources where the first reference signal is located as an example:

[0846] As shown in FIG. 7, the first reference signal is transmitted based on the transmission offset 1, all of the time domain resources where the first reference signal is located are located in the measurement interval, and the start time unit and the end time unit of the time domain resources where the first reference signal is located are located in the measurement interval.

[0847] The first reference signal is transmitted based on a transmission offset 2, a part of a time domain resource where the first reference signal is located is within the measurement interval, and a start time unit of the time domain resource where the first reference signal is located and an end time unit of the time domain resource where the first reference signal is located are both outside the measurement interval.

[0848] The first reference signal is transmitted based on a transmission offset 3, a part of a time domain resource where the first reference signal is located is within the measurement interval, a start time unit of the time domain resource where the first reference signal is located is outside the measurement interval, and an end time unit of the time domain resource where the first reference signal is located is within the measurement interval.

[0849] The first reference signal is transmitted based on a transmission offset 4, a part of a time domain resource where the first reference signal is located is within the measurement interval, a start time unit of the time domain resource where the first reference signal is located is within the measurement interval, and an end time unit of the time domain resource where the first reference signal is located is outside the measurement interval.

[0850] The transmission offset 1, the transmission offset 2, the transmission offset 3, and the transmission offset 4 shown in FIG. 7 all satisfy the condition that a part or all of the time domain resource where the triggered first reference signal is located is within the measurement interval.

[0851] As shown in FIG. 8, the first reference signal is transmitted based on a transmission offset 5, and all of a time domain resource where the first reference signal is located is outside the measurement interval, specifically, a start time unit and an end time unit of the time domain resource where the first reference signal is located are both earlier than a start time of the measurement interval. Therefore, the transmission offset 5 does not satisfy the condition.

[0852] The first reference signal is transmitted based on a transmission offset 6, and all of a time domain resource where the first reference signal is located is outside the measurement interval, specifically, a start time unit and an end time unit of the time domain resource where the first reference signal is located are both later than an end time of the measurement interval. Therefore, the transmission offset 6 does not satisfy the condition.

[0853] In the embodiments of the present application, to ensure that the terminal device can have sufficient time to adjust the beam to receive the candidate cell triggered reference signal, the transmission offset needs to be greater than or equal to a minimum transmission offset value. The minimum transmission offset value can be configured by the network device, for example, the network device configures a minimum transmission offset value K0min, or the minimum transmission offset value can be determined based on the minimum transmission offset value and an increment value configured by the network device, for example, the minimum transmission offset value configured by the network is K0min, the increment value is A, and the minimum transmission offset value = K0min+A.

[0854] Please refer to FIG. 9, which is a structural schematic diagram of a communication apparatus provided in an embodiment of the present application, and the communication apparatus is applied to a terminal device. For example, the communication apparatus can be a terminal device, or a device in a terminal device, such as a chip or a chip module in the terminal device, or a device capable of being matched with the terminal device. The communication apparatus 900 shown in FIG. 9 can include a second receiving unit 910 and a second measuring unit 920:

[0855] The second receiving unit 910 is configured to receive a first message, where the first message is used to trigger a reference signal, and the reference signal is an aperiodic reference signal of a candidate cell.

[0856] The second measuring unit 920 is further configured to measure the reference signal according to the first message.

[0857] In a possible implementation, the first message includes indication information, and the indication information is used to determine the reference signal that is triggered.

[0858] In a possible implementation, the indication information includes at least one of the following: an identification of a trigger state, an identification of a report configuration, an identification of the candidate cell, an identification of a candidate cell set, an identification of a reference signal resource set, and an identification of a reference signal resource where the reference signal is located.

[0859] The reference signal determined based on the identification of the trigger state is a reference signal configured by a first reference signal resource configuration, and the first reference signal resource configuration is a reference signal resource configuration associated with a first report configuration indicated by the identification of the trigger state.

[0860] The reference signal determined based on the identification of the report configuration is a reference signal configured by a second reference signal resource configuration, and the second reference signal resource configuration is a reference signal resource configuration associated with the report configuration.

[0861] The reference signal determined based on the identification of the candidate cell is a reference signal configured in a candidate cell corresponding to the identification of the candidate cell.

[0862] The reference signal determined based on the identification of the candidate cell set is a reference signal of a candidate cell included in the candidate cell set.

[0863] The reference signal determined based on the identification of the reference signal resource set is a reference signal on a reference signal resource included in the reference signal resource set.

[0864] The reference signal determined based on the identification of the reference signal resource is a reference signal on a reference signal resource corresponding to the identification of the reference signal resource.

[0865] In a possible implementation, the first message is used to trigger a reference signal of at least one candidate cell, the at least one candidate cell including a first candidate cell, and the triggered reference signal of the first candidate cell includes a first reference signal;

[0866] The second measurement unit 920 is specifically configured to measure the first reference signal based on first quasi co-location (QCL) information if a transmission offset of the first reference signal is less than a first threshold.

[0867] The transmission offset of the first reference signal is an offset between a last time unit of a time domain resource where the first message is located and a first time unit of a time domain resource where the first reference signal is located.

[0868] The first QCL information is determined based on a preset rule.

[0869] In a possible implementation, the preset rule includes that the first QCL information is QCL information of a first downlink signal.

[0870] The first downlink signal is a downlink signal transmitted before a reference time unit, and the reference time unit is a first time unit of a time domain resource where the first message is located, or the reference time unit is a first time unit of a time domain resource where the first reference signal is located.

[0871] The first downlink signal is a downlink signal occupying a same time domain resource as the first reference signal.

[0872] In a possible implementation, the first downlink signal is a downlink signal transmitted before a reference time unit, including:

[0873] The first downlink signal is a downlink signal satisfying a first condition among a plurality of downlink signals transmitted before a reference time unit.

[0874] The first condition includes at least one of the following: a smallest index value of a downlink signal, a largest index value of a downlink signal, a smallest index value of a reference signal resource where a downlink signal is located, a largest index value of a reference signal resource where a downlink signal is located, a downlink signal measured most recently, and a downlink signal with a highest priority.

[0875] In a possible implementation, the first downlink signal is a downlink signal satisfying a first condition among a plurality of downlink signals transmitted before a reference time unit, including:

[0876] The first downlink signal is a downlink signal satisfying the first condition among a plurality of downlink signals transmitted within a time period before a reference time unit, and the time period includes at least one time unit.

[0877] In a possible implementation, the plurality of downlink signals are downlink signals transmitted in at least one cell.

[0878] The at least one cell includes the first candidate cell, or the at least one cell includes the at least one candidate cell, or the at least one cell includes a serving cell, or the at least one cell includes the serving cell and the first candidate cell, or the at least one cell includes the serving cell and the at least one candidate cell.

[0879] In a possible implementation, the first downlink signal is a downlink signal occupying the same time domain resource as the first reference signal, and the first downlink signal satisfies a second condition.

[0880] The first downlink signal is a downlink signal occupying the same time domain resource as the first reference signal and satisfying a second condition.

[0881] The second condition includes at least one of the following: a transmission offset of the first downlink signal is greater than or equal to a second threshold, the first downlink signal is a periodic reference signal, and the first downlink signal is a semi-persistent reference signal.

[0882] The first downlink signal is scheduled or triggered by a second message, and the transmission offset of the first downlink signal is an offset between a last time unit of a time domain resource where the second message is located and a first time of a time domain resource where the first downlink signal is located.

[0883] In a possible implementation, the first downlink signal is a downlink signal transmitted in the first candidate cell, or the first downlink signal is a downlink signal transmitted in one candidate cell of the at least one candidate cell other than the first candidate cell, or the first downlink signal is a downlink signal transmitted in a serving cell.

[0884] In a possible implementation, the first message is carried in a first physical downlink control channel (PDCCH), a second message for triggering or scheduling the first downlink signal is carried in a second PDCCH, the first PDCCH is transmitted based on a first control resource set (CORESET), and the second PDCCH is transmitted based on a second CORESET.

[0885] A control resource set pool index value CORESETPoolIndex associated with the first CORESET is the same as a CORESETPoolIndex associated with the second CORESET.

[0886] In a possible implementation, the first QCL information is QCL information of the first downlink signal, and the first QCL information includes the following.

[0887] if the first downlink signal corresponds to two TCI states, the first QCL information is QCL information in a first TCI state of the two TCI states;

[0888] The two TCI states corresponding to the first downlink signal are one of the following: two TCI states configured to the first downlink signal, two activated TCI states of the first downlink signal, or two TCI states indicated to the first downlink signal.

[0889] In a possible implementation, the preset rule includes that the first QCL information is QCL information in a first TCI state, and the first TCI state is one TCI state of multiple activated TCI states of the second downlink signal.

[0890] In a possible implementation, the first TCI state is a TCI state with a minimum index value in the multiple activated TCI states, or the first TCI state is a TCI state with a maximum index value in the multiple activated TCI states, or the first TCI state is a TCI state corresponding to a minimum TCI codepoint in the multiple activated TCI states, or the first TCI state is a TCI state corresponding to a maximum TCI codepoint in the multiple activated TCI states, or the first TCI state is a first activated TCI state of two activated TCI states corresponding to a first TCI codepoint, or the first TCI state is a first activated TCI state of two activated TCI states corresponding to a second TCI codepoint.

[0891] The first TCI codepoint is a minimum TCI codepoint in at least one TCI codepoint, the second TCI codepoint is a maximum TCI codepoint in the at least one TCI codepoint, each TCI codepoint in the at least one TCI codepoint corresponds to two activated TCI states, and the multiple activated TCI states of the second downlink signal include activated TCI states corresponding to each TCI codepoint in the at least one TCI codepoint.

[0892] In a possible implementation, the preset rule includes that the first QCL information is QCL information in a second TCI state, and the second TCI state is a TCI state of a third control resource set (CORESET), and the third CORESET is a CORESET monitored in at least one latest slot.

[0893] In a possible implementation, the third CORESET is a CORESET monitored in at least one latest slot, including:

[0894] The third CORESET is a CORESET with a minimum index value among multiple CORESETs monitored in the last at least one slot, or the third CORESET is a CORESET with a maximum index value among multiple CORESETs monitored in the last at least one slot.

[0895] In a possible implementation, the first message is carried in a first PDCCH, and the first PDCCH is transmitted based on a first CORESET.

[0896] The third CORESET is associated with a control resource set pool index CORESETPoolIndex that is the same as a control resource set pool index CORESETPoolIndex associated with the first CORESET.

[0897] In a possible implementation, if the third CORESET corresponds to two TCI states, the second TCI state is a first TCI state of the two TCI states corresponding to the third CORESET.

[0898] In a possible implementation, the preset rule includes that the first QCL information is determined according to QCL information in a third TCI state, the third TCI state is a target TCI state of a target cell indicated in a cell switching command, and the target cell is one of the at least one candidate cell.

[0899] In a possible implementation, if the target TCI state includes two TCI states, the third TCI state is a first TCI state of the two TCI states.

[0900] In a possible implementation, the preset rule includes that the first QCL information is determined according to QCL information in a fourth TCI state, and the fourth TCI state is a TCI state corresponding to a reference signal resource of the first candidate cell indicated in a layer 1 / layer 2 triggered mobility (LTM) beam report.

[0901] In a possible implementation, the LTM beam report indicates a TCI state pair corresponding to a reference signal resource of the first candidate cell, the reference signal resource pair includes two reference signal resources, the TCI state pair includes two TCI states, the two reference signal resources correspond to different TCI states of the two TCI states respectively, and the fourth TCI state is a first TCI state of the two TCI states.

[0902] In a possible implementation, the first candidate cell and the second candidate cell are configured as carrier aggregation, and the second reference signal in the second candidate cell is scheduled or triggered by the third message;

[0903] The second measurement unit 920 is further configured to measure the second reference signal based on the first QCL information if a transmission offset of the second reference signal is less than a third threshold.

[0904] The transmission offset of the second reference signal is an offset between a last time unit of a time domain resource where the third message is located and a first time unit of a time domain resource where the second reference signal is located.

[0905] In a possible implementation, the number of the second candidate cells is at least one, and a cell index value of the first candidate cell is less than a cell index value of each of the at least one second candidate cell, or the cell index value of the first candidate cell is greater than the cell index value of each of the at least one second candidate cell.

[0906] In a possible implementation, the first threshold is determined based on a subcarrier spacing of a serving cell and / or a first subcarrier spacing.

[0907] The first subcarrier spacing is a subcarrier spacing of the first candidate cell, or the first subcarrier spacing is a minimum subcarrier spacing of the at least one candidate cell, or the first subcarrier spacing is a maximum subcarrier spacing of the at least one candidate cell.

[0908] In a possible implementation, the transmission offset of the first reference signal is determined based on a trigger offset value and an increment value, the trigger offset value is a length of a transmission offset configured by a network, and the increment value is a value increased on the basis of the trigger offset value.

[0909] In a possible implementation, the increment value is carried in one of the following configuration information: LTM configuration information, configuration information of the first candidate cell, reporting configuration, and reference signal resource configuration information.

[0910] The LTM configuration information includes the first candidate cell.

[0911] The reporting configuration is used for configuring reporting of a measurement result of the reference signal.

[0912] The reference signal resource configuration information is associated with the reporting configuration, and the reference signal resource configuration information includes a reference signal resource where the first reference signal is located.

[0913] In a possible implementation, the sending offset of the first reference signal satisfies the following condition: part or all of the time domain resource where the first reference signal is located is located in a measurement interval.

[0914] The specific description of FIG. 9 can refer to the description of the foregoing method embodiments, which will not be described herein again.

[0915] Please refer to FIG. 10. The communication apparatus is applied to a network device. For example, the communication apparatus can be a network device or a device in the network device, such as a chip or a chip module in the network device, or a device capable of matching the network device. The communication apparatus 1000 shown in FIG. 10 can include a second sending unit 1010, wherein:

[0916] The second sending unit 1010 is configured to send a first message, wherein the first message is used to trigger a reference signal, and the reference signal is an aperiodic reference signal of a candidate cell.

[0917] In a possible implementation, the first message includes indication information, and the indication information is used to determine the reference signal triggered.

[0918] In a possible implementation, the indication information includes at least one of the following: an identification of a trigger state, an identification of a report configuration, an identification of the candidate cell, an identification of a candidate cell set, an identification of a reference signal resource set, and an identification of a reference signal resource.

[0919] The reference signal determined based on the identification of the trigger state is a reference signal configured by a first reference signal resource configuration, and the first reference signal resource configuration is a reference signal resource configuration associated with a first report configuration indicated by the identification of the trigger state.

[0920] The reference signal determined based on the identification of the report configuration is a reference signal configured by a second reference signal resource configuration, and the second reference signal resource configuration is a reference signal resource configuration associated with the report configuration.

[0921] The reference signal determined based on the identification of the candidate cell is a reference signal configured in a candidate cell corresponding to the identification of the candidate cell.

[0922] The reference signal determined based on the identification of the candidate cell set is a reference signal of a candidate cell included in the candidate cell set.

[0923] The reference signal determined based on the identification of the reference signal resource set is a reference signal on a reference signal resource included in the reference signal resource set.

[0924] The reference signal determined based on the identification of the reference signal resource is a reference signal on a reference signal resource corresponding to the identification of the reference signal resource.

[0925] In a possible implementation, the first message is used to trigger reference signals of at least one candidate cell, the at least one candidate cell including a first candidate cell, and the triggered reference signals of the first candidate cell include a first reference signal.

[0926] The sending unit 1010 is further configured to send the first reference signal based on first quasi co-location (QCL) information if a sending offset of the first reference signal is less than a first threshold.

[0927] The sending offset of the first reference signal is an offset between a last time unit of a time domain resource where the first message is located and a first time unit of a time domain resource where the first reference signal is located.

[0928] The first QCL information is determined based on a preset rule.

[0929] In a possible implementation, the preset rule includes that the first QCL information is QCL information of a first downlink signal.

[0930] The first downlink signal is a downlink signal transmitted before a reference time unit, the reference time unit being a first time unit of a time domain resource where the first message is located, or the reference time unit being a first time unit of a time domain resource where the first reference signal is located.

[0931] The first downlink signal is a downlink signal occupying a same time domain resource as the first reference signal.

[0932] In a possible implementation, the first downlink signal is a downlink signal transmitted before a reference time unit, including:

[0933] The first downlink signal is a downlink signal satisfying a first condition among a plurality of downlink signals transmitted before a reference time unit.

[0934] The first condition includes at least one of the following: a smallest index value of a downlink signal, a largest index value of a downlink signal, a smallest index of a reference signal resource where a downlink signal is located, a largest index of a reference signal resource where a downlink signal is located, a downlink signal most recently measured, and a downlink signal with a highest priority.

[0935] In a possible implementation, the first downlink signal is a downlink signal satisfying a first condition among a plurality of downlink signals transmitted before a reference time unit, including:

[0936] The first downlink signal is a downlink signal satisfying the first condition among a plurality of downlink signals transmitted in a time period before a reference time unit, and the time period includes at least one time unit.

[0937] In a possible implementation, the plurality of downlink signals are downlink signals transmitted in at least one cell.

[0938] The at least one cell includes the first candidate cell, or the at least one cell includes the at least one candidate cell, or the at least one cell includes a serving cell, or the at least one cell includes the serving cell and the first candidate cell, or the at least one cell includes the serving cell and the at least one candidate cell.

[0939] In a possible implementation, the first downlink signal is a downlink signal occupying a same time domain resource as the first reference signal, and the first downlink signal satisfies a second condition.

[0940] The first downlink signal is a downlink signal occupying a same time domain resource as the first reference signal and satisfying a second condition.

[0941] The second condition includes at least one of the following: a transmission offset of the first downlink signal is greater than or equal to a second threshold, the first downlink signal is a periodic reference signal, and the first downlink signal is a semi-persistent reference signal.

[0942] The first downlink signal is scheduled or triggered by a second message, and the transmission offset of the first downlink signal is an offset between a last time unit of a time domain resource where the second message is located and a first time of a time domain resource where the first downlink signal is located.

[0943] In a possible implementation, the first downlink signal is a downlink signal transmitted in the first candidate cell, or the first downlink signal is a downlink signal transmitted in one candidate cell of the at least one candidate cell other than the first candidate cell, or the first downlink signal is a downlink signal transmitted in a serving cell.

[0944] In a possible implementation, the first message is carried in a first physical downlink control channel (PDCCH), a second message for triggering or scheduling the first downlink signal is carried in a second PDCCH, the first PDCCH is transmitted based on a first control resource set (CORESET), and the second PDCCH is transmitted based on a second CORESET.

[0945] A control resource set pool index value CORESETPoolIndex associated with the first CORESET is the same as a CORESETPoolIndex associated with the second CORESET.

[0946] In a possible implementation, the first QCL information is QCL information of a first downlink signal, and the first downlink signal corresponds to two TCI states.

[0947] If the first downlink signal corresponds to two TCI states, the first QCL information is QCL information in a first TCI state of the two TCI states.

[0948] The two TCI states corresponding to the first downlink signal are one of the following: two TCI states configured to the first downlink signal, two activated TCI states of the first downlink signal, or two TCI states indicated to the first downlink signal.

[0949] In a possible implementation, the preset rule includes that the first QCL information is QCL information in a first TCI state, and the first TCI state is one TCI state of multiple activated TCI states of a second downlink signal.

[0950] In a possible implementation, the first TCI state is a TCI state with a minimum index value in the multiple activated TCI states, or the first TCI state is a TCI state with a maximum index value in the multiple activated TCI states, or the first TCI state is a TCI state corresponding to a minimum TCI code point in the multiple activated TCI states, or the first TCI state is a TCI state corresponding to a maximum TCI code point in the multiple activated TCI states, or the first TCI state is a first activated TCI state of two activated TCI states corresponding to a first TCI code point, or the first TCI state is a first activated TCI state of two activated TCI states corresponding to a second TCI code point.

[0951] The first TCI code point is a minimum TCI code point in at least one TCI code point, the second TCI code point is a maximum TCI code point in the at least one TCI code point, each TCI code point in the at least one TCI code point corresponds to two activated TCI states, and the multiple activated TCI states of the second downlink signal include activated TCI states corresponding to each TCI code point in the at least one TCI code point.

[0952] In a possible implementation, the preset rule includes that the first QCL information is QCL information in a second TCI state, and the second TCI state is a TCI state of a third control resource set (CORESET), and the third CORESET is a CORESET monitored in at least one latest slot.

[0953] In a possible implementation, the third CORESET is a CORESET monitored in the last at least one slot, including:

[0954] The third CORESET is a CORESET with a minimum index value among multiple CORESETs monitored in the last at least one slot, or the third CORESET is a CORESET with a maximum index value among the multiple CORESETs monitored in the last at least one slot.

[0955] In a possible implementation, the first message is carried in a first PDCCH, and the first PDCCH is transmitted based on the first CORESET.

[0956] The third CORESET is associated with a control resource set pool index CORESETPoolIndex that is the same as a control resource set pool index CORESETPoolIndex associated with the first CORESET.

[0957] In a possible implementation, if the third CORESET corresponds to two TCI states, the second TCI state is a first TCI state of the two TCI states corresponding to the third CORESET.

[0958] In a possible implementation, the preset rule includes that the first QCL information is determined according to QCL information in a third TCI state, the third TCI state is a target TCI state of a target cell indicated in a cell switching command, and the target cell is one of the at least one candidate cell.

[0959] In a possible implementation, if the target TCI state includes two TCI states, the third TCI state is a first TCI state of the two TCI states.

[0960] In a possible implementation, the preset rule includes that the first QCL information is determined according to QCL information in a fourth TCI state, and the fourth TCI state is a TCI state corresponding to a reference signal resource of the first candidate cell indicated in a layer 1 / layer 2 triggered mobility (LTM) beam report.

[0961] In a possible implementation, the LTM beam report indicates a TCI state pair corresponding to a reference signal resource of the first candidate cell, the reference signal resource pair includes two reference signal resources, the TCI state pair includes two TCI states, the two reference signal resources correspond to different TCI states of the two TCI states respectively, and the fourth TCI state is a first TCI state of the two TCI states.

[0962] In a possible implementation, the first candidate cell and the second candidate cell are configured as carrier aggregation, and the second reference signal in the second candidate cell is scheduled or triggered by the third message;

[0963] The second sending unit 1010 is further configured to send the second reference signal based on the first QCL information if a sending offset of the second reference signal is less than a third threshold;

[0964] The sending offset of the second reference signal is an offset between a last time unit of a time domain resource where the third message is located and a first time unit of a time domain resource where the second reference signal is located.

[0965] In a possible implementation, the number of the second candidate cells is at least one, and a cell index value of the first candidate cell is less than a cell index value of each of the at least one second candidate cell, or the cell index value of the first candidate cell is greater than the cell index value of each of the at least one second candidate cell.

[0966] In a possible implementation, the first threshold is determined based on a subcarrier spacing of a serving cell and / or a first subcarrier spacing;

[0967] The first subcarrier spacing is a subcarrier spacing of the first candidate cell, or the first subcarrier spacing is a minimum subcarrier spacing of the at least one candidate cell, or the first subcarrier spacing is a maximum subcarrier spacing in the at least one candidate cell.

[0968] In a possible implementation, the sending offset of the first reference signal is determined based on a triggering offset value and an increment value, the triggering offset value is a length of a sending offset configured by a network, and the increment value is a value increased on the basis of the triggering offset value.

[0969] In a possible implementation, the increment value is carried in one of the following configuration information: LTM configuration information, configuration information of the first candidate cell, reporting configuration, and reference signal resource configuration information.

[0970] The LTM configuration information includes the first candidate cell.

[0971] The reporting configuration is used for configuring reporting of a measurement result of the reference signal.

[0972] The reference signal resource configuration information is associated with the reporting configuration, and the reference signal resource configuration information includes a reference signal resource where the first reference signal is located.

[0973] In a possible implementation, the transmission offset of the first reference signal satisfies the following condition: part or all of the time-domain resource where the first reference signal is located is located in a measurement interval.

[0974] The specific description of FIG. 10 can refer to the description of the foregoing method embodiments, which will not be repeated here.

[0975] Referring to FIG. 11, FIG. 11 is a structural schematic diagram of a communication apparatus provided in an embodiment of the present application, which is used to implement the functions of the network device in the foregoing method embodiments, or used to implement the functions of the terminal device in the foregoing method embodiments. The communication apparatus 1300 can be a network device or an apparatus for a network device. The apparatus for a network device can be a chip system or a chip in the network device. The communication apparatus can also be a terminal device or an apparatus for a terminal device. The apparatus for a terminal device can be a chip system or a chip in the terminal device. The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0976] The communication apparatus 1300 includes at least one processor 1320, which is used to implement the data processing functions of the network device or the terminal device in the method provided in the embodiments of the present application. The communication apparatus 1300 can also include a communication interface 1310, which is used to implement the transceiving operations of the network device or the terminal device in the method provided in the embodiments of the present application. In the embodiments of the present application, the processor 1320 can be a central processing unit (CPU), and the processor can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gates or transistor logic components, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor. In the embodiments of the present application, the communication interface 1310 can be a transceiver, a circuit, a bus, a module or other types of communication interfaces, which are used to communicate with other devices through transmission media. For example, the communication interface 1310 is used for the communication apparatus 1300 to communicate with other devices. The processor 1320 transceives data by using the communication interface 1310, and is used to implement the method described in the foregoing method embodiments.

[0977] The communication device 1300 can further include at least one memory 1330 for storing program instructions and / or data. The memory 1330 is coupled to the processor 1320. The coupling between the units, elements or modules in the embodiments of the present application is indirect coupling or communication connection between the units, elements or modules, which can be electrical, mechanical or other forms, for information interaction between the units, elements or modules. The processor 1320 can operate in cooperation with the memory 1330. The processor 1320 can execute the program instructions stored in the memory 1330. At least one of the at least one memory can be included in the processor.

[0978] When the communication device 1300 is powered on, the processor 1320 can read the software program in the memory 1330, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be transmitted wirelessly, the processor 1320 performs baseband processing on the data to be transmitted, and outputs the baseband signal to the radio frequency circuit (not shown in FIG. 11). The radio frequency circuit converts the baseband signal into a radio frequency signal and transmits the radio frequency signal in the form of an electromagnetic wave through the antenna. When data is transmitted to the communication device 1300, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 1320. The processor 1320 converts the baseband signal into data and processes the data.

[0979] In another implementation, the radio frequency circuit and the antenna can be arranged independently of the processor 1320 performing baseband processing, for example, in a distributed scenario, the radio frequency circuit and the antenna can be arranged remotely from the device.

[0980] The specific connection medium between the communication interface 1310, the processor 1320 and the memory 1330 in the embodiments of the present application is not limited. In FIG. 11, the memory 1330, the processor 1320 and the communication interface 1310 are connected through a bus 1340, which is represented by a thick line in FIG. 11. The connection mode between other components is only illustrative and is not limited. The bus can be divided into an address bus, a data bus, a control bus, etc. For convenience of representation, only one thick line is used in FIG. 11, but it does not mean that there is only one bus or only one type of bus.

[0981] When the communication device 1300 is specifically used for a network device, for example, the communication device 1300 is specifically a chip or a chip system, the communication interface 1310 can output or receive a baseband signal. When the communication device 1300 is specifically a terminal device, the communication interface 1310 can output or receive a radio frequency signal.

[0982] It should be noted that the apparatus can perform the related steps of the network device or the terminal device in the foregoing method embodiments, and specific implementation can be referred to the implementation provided by each step, which will not be described here.

[0983] For each device, product, and module included therein applied to or integrated into the apparatus, each module can be implemented in the form of hardware such as a circuit, different modules can be located in the same component (for example, a chip, a circuit module, or the like) or different components in the network node, or at least part of the modules can be implemented in the form of a software program running on a processor integrated in the network device or the terminal device, and the remaining (if any) part of the modules can be implemented in the form of hardware such as a circuit.

[0984] The memory can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile memory can be a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM) used as external cache memory. By way of example, and not limitation, many forms of random access memory (RAM) can be used, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and direct Rambus RAM (DR RAM). The RAM can have a memory controller that provides an interface between the processor and the RAM.

[0985] Embodiments of the present application provide a chip. The chip comprises a processor, and further comprises a memory. The number of processors can be one or more, and the number of memories can be one or more. The processor can execute the method shown in the above method embodiments and the steps executed by the related embodiments by reading the instructions and data stored on the memory.

[0986] As shown in FIG. 12, FIG. 12 is a structural schematic diagram of a module device provided in the embodiments of the present application. The module device 1400 can perform the related steps of the network device in the foregoing method embodiments, or the module device 1400 can perform the related steps of the terminal device in the foregoing method embodiments.

[0987] The module device 1400 includes a communication module 1410, a power supply module 1420, a storage module 1430, and a chip module 1440. The power supply module 1420 is configured to provide power for the module device; the storage module 1430 is configured to store data and / or instructions; the communication module 1410 is configured to communicate with an external device; and the chip module 1440 is configured to invoke the data and / or instructions stored in the storage module 1430, in combination with the communication module 1410, to perform the method shown in the foregoing method embodiments and the steps performed by the related embodiments.

[0988] In the embodiments of the present application, a computer readable storage medium is further provided. The computer readable storage medium stores a computer program, and the computer program includes program instructions. When an electronic device executes the program instructions, the steps performed by the network device in the method shown in the foregoing method embodiments are implemented, or the steps performed by the terminal device in the method shown in the foregoing method embodiments are implemented.

[0989] The computer readable storage medium can be an internal storage unit of the network device or the terminal device in any of the foregoing embodiments, for example, a hard disk or a memory of the device. The computer readable storage medium can also be an external storage device of the network device or the terminal device, for example, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, and the like. Further, the computer readable storage medium can include both the internal storage unit and the external storage device of the network device or the terminal device. The computer readable storage medium is used to store the computer program and other programs and data required by the network device or the terminal device. The computer readable storage medium can also be used to temporarily store data that has been output or will be output. The computer readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, a data center, and the like, which includes one or more available medium sets. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (DVD)), or a semiconductor medium. The semiconductor medium can be a solid state disk.

[0990] The various modules / units included in the various devices and products described in the above embodiments can be software modules / units or hardware modules / units, or partially software modules / units and partially hardware modules / units. For example, for the various devices and products applied to or integrated into a chip, the various modules / units included therein can all be implemented in the form of hardware such as circuitry, or at least some of the modules / units can be implemented in the form of software programs running on a processor integrated into the chip, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuitry; for the various devices and products applied to or integrated into a chip module, the various modules / units included therein can all be implemented in the form of hardware such as circuitry, and different modules / units can be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the chip module, or at least some of the modules / units can be implemented in the form of software programs running on a processor integrated into the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuitry; for the various devices and products applied to or integrated into a data acquisition node, the various modules / units included therein can all be implemented in the form of hardware such as circuitry, and different modules / units can be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the terminal device, or at least some of the modules / units can be implemented in the form of software programs running on a processor integrated into the data acquisition node, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuitry.

[0991] The above embodiments can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions described in the embodiments of the present application are wholly or partially generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another, for example, the computer instructions can be transferred from one website, computer, server, or data center to another via wired or wireless means.

[0992] It should be understood that, in various embodiments of the present application, the sequence of the above processes does not mean the execution order, and the execution order of the processes should be determined according to their functions and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0993] In several embodiments provided in the present application, it should be understood that the disclosed methods, devices and systems can be implemented in other manners. For example, the above described device embodiments are merely illustrative; for example, the division of the units is only a logical function division, and there can be another division manner in actual implementation; for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different units, can be indirect couplings or communication connections through some interfaces, devices or units, and can be electrical, mechanical or in other forms.

[0994] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purposes of the embodiments.

[0995] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can be physically included separately, or two or more units can be integrated into one unit. The integrated unit can be realized in the form of hardware, or in the form of hardware plus software functional units.

[0996] The integrated unit realized in the form of software functional units can be stored in a computer readable storage medium. The software functional units stored in a storage medium include a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a gateway node, etc.) to execute part of the steps of the methods described in each embodiment of the present application.

[0997] Those of ordinary skill in the art can understand that all or part of the processes in the above described embodiments can be completed by a computer program instructing related hardware, and the program can be stored in a computer readable storage medium, and when the program is executed, it can include the processes of the above described embodiments. The storage medium can be a magnetic disc, an optical disc, a read-only memory (ROM) or a random access memory (RAM), etc.

[0998] The above disclosure is only a preferred embodiment of the present application, and of course cannot limit the scope of the rights of the present application, and those of ordinary skill in the art can understand that all or part of the processes of the above described embodiments can be implemented, and equivalent changes made according to the claims of the present application, still belong to the scope covered by the application.

Claims

A reference signal transmission method, comprising: receiving a first message, the first message being used for activating or deactivating a reference signal, the reference signal being a semi-persistent reference signal of a candidate cell; measuring the activated reference signal according to the first message, or stopping measuring the deactivated reference signal according to the first message. The method of claim 1, wherein, The first message comprises first indication information, the first indication information being used for determining the activated or deactivated reference signal. The method of claim 2, wherein, The first indication information indicates at least one of the following: an identity of a reporting configuration, an identity of a candidate cell set, an identity of a candidate cell, an identity of a reference signal resource configuration, an identity of a reference signal resource set, an identity of a reference signal resource list, or an identity of a reference signal resource; The reference signal determined based on the identity of the reporting configuration is a reference signal configured in a reference signal resource configuration associated with the reporting configuration, the reporting configuration being used for configuring reporting of a measurement result of the reference signal; The reference signal determined based on the identity of the candidate cell set is a reference signal configured in a candidate cell included in the candidate cell set; The reference signal determined based on the identity of the candidate cell is a reference signal configured in the candidate cell; The reference signal determined based on the identity of the reference signal resource configuration is a reference signal configured in the reference signal resource configuration; The reference signal determined based on the identity of the reference signal resource set is a reference signal on a reference signal resource included in the reference signal resource set; The reference signal determined based on the identity of the reference signal resource list is a reference signal on a reference signal resource included in the reference signal resource list; The reference signal determined based on the identity of the reference signal resource is a reference signal carried by the reference signal resource. The method of any one of claims 1-3, wherein, The first message comprises second indication information, the second indication information indicating a TCI state identity corresponding to the activated reference signal. The method of any one of claims 1-4, wherein, The first message further comprises at least one indication field, the at least one indication field being used for indicating that the reference signal is activated or deactivated. The method of claim 5, wherein, The number of the indication fields is multiple; The first message is used for activating or deactivating reference signals of multiple candidate cells, each of the multiple indication fields respectively indicating that a reference signal of one of the multiple candidate cells is activated or deactivated; or, The first message is used for activating or deactivating reference signals configured in multiple reference signal resource configurations, each of the multiple indication fields respectively indicating that a reference signal configured in one of the multiple reference signal resource configurations is activated or deactivated; or, The first message is used for activating or deactivating reference signals in multiple reference signal resource sets, each of the multiple indication fields respectively indicating that reference signals in one of the multiple reference signal resource sets are activated or deactivated; or, The first message is used to activate or deactivate reference signals on a plurality of reference signal resources, each of a plurality of indication fields respectively indicates that a reference signal on one of the plurality of reference signal resources is activated or deactivated. The method of any one of claims 1-6, wherein, The candidate cell where the activated reference signal is located is activated, wherein the reference signal of the activated candidate cell is measured by the terminal device; Or, the candidate cell where the deactivated reference signal is located is deactivated, wherein the reference signal of the deactivated candidate cell is not measured by the terminal device, The terminal device is a device receiving the first message. The method of claim 1, wherein, The first message is used to activate or deactivate reference signals of at least one candidate cell, the at least one candidate cell includes a first candidate cell, and the reference signal of the first candidate cell that is activated or deactivated includes a first reference signal; The measurement of the activated reference signal according to the first message, or the stop of the measurement of the deactivated reference signal according to the first message, comprises: According to the first message, the measurement of the activated first reference signal starts from a first time unit after a second time unit, or the stop of the measurement of the deactivated first reference signal starts from a first time unit after a second time unit; Wherein, the first time unit is a time unit determined by shifting X time units after the second time unit, the value of X is determined based on a first subcarrier spacing, the first subcarrier spacing is determined based on a subcarrier spacing of the at least one candidate cell and / or a subcarrier spacing of a serving cell, and the value of X is greater than 0. The second time unit is a time unit for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK) information corresponding to the first message. The method of claim 8, wherein, The value of X is determined based on the first subcarrier spacing, comprising: The value of X is determined based on the value of N, the value of N is determined based on the first subcarrier spacing, the value of N is the number of time units contained in one subframe, one subframe includes at least one time unit, and the value of N is greater than 0. The method of claim 8 or 9, wherein, The first subcarrier spacing is determined based on the subcarrier spacing of the at least one candidate cell and / or the subcarrier spacing of the serving cell, comprising: The first subcarrier spacing is the subcarrier spacing of the first candidate cell; Or, The first subcarrier spacing is the minimum subcarrier spacing in the subcarrier spacing of the at least one candidate cell; Or, The first subcarrier spacing is the maximum subcarrier spacing in the subcarrier spacing of the at least one candidate cell; Or, The first subcarrier spacing is the subcarrier spacing of the serving cell; Or, The first subcarrier spacing is the minimum subcarrier spacing in the subcarrier spacing of the at least one candidate cell and the subcarrier spacing of the serving cell; Or, The first subcarrier spacing is the maximum subcarrier spacing in the subcarrier spacing of the at least one candidate cell and the subcarrier spacing of the serving cell; Or, The first subcarrier spacing is the maximum of the subcarrier spacing of the first candidate cell and the subcarrier spacing of the serving cell; or The first subcarrier spacing is the minimum of the subcarrier spacing of the first candidate cell and the subcarrier spacing of the serving cell. The method of claim 9 or 10, wherein, The value of X is determined based on the value of N, including: The value of X is determined based on the value of N and an amplification factor, the amplification factor indicating an amplification multiple of the value of N, and the amplification factor being a value greater than 3. The method of claim 9 or 10, wherein, The value of X is determined based on the value of N, including: The value of X is determined based on the value of N and an increment value, the increment value being a predefined or network-configured number of time units that need to be added. A reference signal transmission method, wherein, Including: The first message is used to activate or deactivate a reference signal, the reference signal being a semi-persistent reference signal of a candidate cell. The method of claim 13, wherein, The first message includes first indication information, the first indication information being used to determine the activated or deactivated reference signal. The method of claim 14, wherein, The first indication information indicates at least one of the following: an identity of a report configuration, an identity of a candidate cell set, an identity of a candidate cell, an identity of a reference signal resource configuration, an identity of a reference signal resource set, an identity of a reference signal resource list, or an identity of a reference signal resource. The reference signal determined based on the identity of the report configuration is a reference signal configured in a reference signal resource configuration associated with the report configuration, the report configuration being used to configure reporting of a measurement result of the reference signal. The reference signal determined based on the identity of the candidate cell set is a reference signal configured in a candidate cell included in the candidate cell set. The reference signal determined based on the identity of the candidate cell is a reference signal configured in the candidate cell. The reference signal determined based on the identity of the reference signal resource configuration is a reference signal configured in the reference signal resource configuration. The reference signal determined based on the identity of the reference signal resource set is a reference signal on a reference signal resource included in the reference signal resource set. The reference signal determined based on the identity of the reference signal resource list is a reference signal on a reference signal resource included in the reference signal resource list. The reference signal determined based on the identity of the reference signal resource is a reference signal carried by the reference signal resource. The method of any one of claims 13-15, wherein, The first message includes second indication information, the second indication information indicating a TCI state identity corresponding to the activated reference signal. The method of any one of claims 13-16, wherein, The first message further includes at least one indication field, the at least one indication field being used to indicate that the reference signal is activated or deactivated. The method of claim 17, wherein, The number of indication fields is multiple. The first message is used to activate or deactivate reference signals of multiple candidate cells, each of the multiple indication fields indicating that the reference signal of one of the multiple candidate cells is activated or deactivated; or The first message is used to activate or deactivate reference signals of multiple candidate cells, each of the multiple indication fields indicating that the reference signal of one of the multiple candidate cells is activated or deactivated; or, The first message is used to activate or deactivate reference signals configured in a plurality of reference signal resource configurations, each of a plurality of indication fields respectively indicates that reference signals configured in one of the plurality of reference signal resource configurations are activated or deactivated; or, The first message is used to activate or deactivate reference signals in a plurality of reference signal resource sets, each of a plurality of indication fields respectively indicates that reference signals in one of the plurality of reference signal resource sets are activated or deactivated; or, The first message is used to activate or deactivate reference signals on a plurality of reference signal resources, each of a plurality of indication fields respectively indicates that reference signals on one of the plurality of reference signal resources are activated or deactivated. The method of any one of claims 13-18, wherein, The candidate cell where the activated reference signal is located is activated, wherein the reference signal of the activated candidate cell is measured by the terminal device; Or, the candidate cell where the deactivated reference signal is located is deactivated, wherein the reference signal of the deactivated candidate cell is not measured by the terminal device, The terminal device is a device receiving the first message. The method of claim 13, wherein, The first message is used to activate or deactivate reference signals of at least one candidate cell, the at least one candidate cell includes a first candidate cell, and the reference signal of the first candidate cell that is activated or deactivated includes a first reference signal; The method further comprises: Starting to send the activated first reference signal from a first time unit after a second time unit, or stopping to send the deactivated first reference signal from a first time unit after a second time unit; Wherein, the first time unit is a time unit determined after the second time unit by X time units, the value of X is determined based on a first subcarrier spacing, the first subcarrier spacing is determined based on a subcarrier spacing of the at least one candidate cell and / or a subcarrier spacing of a serving cell, and the value of X is greater than 0. The second time unit is a time unit for transmitting hybrid automatic repeat request-acknowledgement (HARQ-ACK) information corresponding to the first message. The method of claim 20, wherein, The value of X is determined based on the first subcarrier spacing, including: The value of X is determined based on the value of N, the value of N is determined based on the first subcarrier spacing, the value of N is the number of time units contained in one subframe, one subframe includes at least one time unit, and the value of N is greater than 0. The method of claim 20 or 21, wherein, The first subcarrier spacing is determined based on the subcarrier spacing of the at least one candidate cell and / or the subcarrier spacing of the serving cell, including: The first subcarrier spacing is the subcarrier spacing of the first candidate cell; or, The first subcarrier spacing is the minimum subcarrier spacing in the subcarrier spacing of the at least one candidate cell; or, The first subcarrier spacing is the maximum subcarrier spacing in the subcarrier spacing of the at least one candidate cell; or, The first subcarrier spacing is the subcarrier spacing of the serving cell; or, The first subcarrier spacing is the minimum subcarrier spacing of the subcarrier spacing of the at least one candidate cell and the subcarrier spacing of the serving cell; or The first subcarrier spacing is the maximum subcarrier spacing of the subcarrier spacing of the at least one candidate cell and the subcarrier spacing of the serving cell; or The first subcarrier spacing is the maximum subcarrier spacing of the subcarrier spacing of the first candidate cell and the subcarrier spacing of the serving cell; or The first subcarrier spacing is the minimum subcarrier spacing of the subcarrier spacing of the first candidate cell and the subcarrier spacing of the serving cell. The method of claim 21 or 22, wherein, The value of X is determined based on the value of N, including: The value of X is determined based on the value of N and an amplification factor, the amplification factor indicating an amplification multiple of the value of N, and the amplification factor being a value greater than 3. The method of claim 21 or 22, wherein, The value of X is determined based on the value of N, including: The value of X is determined based on the value of N and an increment value, the increment value being a predefined or network-configured number of time units that need to be added. A communication apparatus, comprising: A receiving unit configured to receive a first message, the first message being used to activate or deactivate a reference signal, the reference signal being a semi-persistent reference signal of a candidate cell. A measuring unit configured to measure the activated reference signal according to the first message, or stop measuring the deactivated reference signal according to the first message. A communication apparatus, comprising: A sending unit configured to send a first message, the first message being used to activate or deactivate a reference signal, the reference signal being a semi-persistent reference signal of a candidate cell. A communication device, wherein The communication apparatus comprises a processor and a memory, the processor and the memory are connected to each other, wherein the memory is configured to store a computer program, the computer program comprises program instructions, the processor invokes the program instructions to execute the method in any one of claims 1 to 12, or execute the method in any one of claims 13 to 24. A chip, wherein, The chip comprises a processor and an interface, the processor and the interface are coupled; the interface is configured to receive or output signals, and the processor is configured to execute code instructions to execute the method in any one of claims 1 to 12, or execute the method in any one of claims 13 to 24. A modular device, wherein, The module device comprises a communication module, a power module, a storage module, and a chip module, wherein: The power module is configured to provide power for the module device; The storage module is configured to store data and / or instructions; The communication module is configured to communicate with external devices; The chip module is configured to invoke the data and / or instructions stored by the storage module, and execute the method in any one of claims 1 to 12 or the method in any one of claims 13 to 24 in combination with the communication module. A computer-readable storage medium, wherein, The computer readable storage medium stores a computer program, the computer program comprising program instructions, when the computer executes the program instructions, the method of any one of claims 1 to 12 is implemented, or the method of any one of claims 13 to 24 is implemented. A reference signal triggering method, comprising: receiving a first message, the first message being used for triggering a reference signal, the reference signal being an aperiodic reference signal of a candidate cell; measuring the reference signal according to the first message. The method of claim 1, wherein, The first message comprises indication information, the indication information being used for determining the reference signal triggered. The method of claim 32, wherein, The indication information indicates at least one of the following: an identification of a triggering state, an identification of a reporting configuration, an identification of a candidate cell, an identification of a candidate cell set, an identification of a reference signal resource set, an identification of a reference signal resource; The reference signal determined based on the identification of the triggering state is a reference signal configured by a first reference signal resource configuration, the first reference signal resource configuration being a reference signal resource configuration associated with a first reporting configuration indicated by the identification of the triggering state; The reference signal determined based on the identification of the reporting configuration is a reference signal configured by a second reference signal resource configuration, the second reference signal resource configuration being a reference signal resource configuration associated with the reporting configuration; The reference signal determined based on the identification of the candidate cell is a reference signal configured in a candidate cell corresponding to the identification of the candidate cell; The reference signal determined based on the identification of the candidate cell set is a reference signal of a candidate cell included in the candidate cell set; The reference signal determined based on the identification of the reference signal resource set is a reference signal on a reference signal resource included in the reference signal resource set; The reference signal determined based on the identification of the reference signal resource is a reference signal on a reference signal resource corresponding to the identification of the reference signal resource. The method of any one of claims 31-33, wherein, The first message is used for triggering a reference signal of at least one candidate cell, the at least one candidate cell comprising a first candidate cell, the reference signal triggered of the first candidate cell comprising a first reference signal; The measuring the reference signal comprises: If a transmission offset of the first reference signal is less than a first threshold, measuring the first reference signal based on first quasi co-location (QCL) information; The transmission offset of the first reference signal is an offset between a last time unit of a time domain resource where the first message is located and a first time unit of a time domain resource where the first reference signal is located; The first QCL information is determined based on a preset rule. The method of claim 34, wherein, The preset rule comprises: the first QCL information being QCL information of a first downlink signal; The first downlink signal is a downlink signal transmitted before a reference time unit, the reference time unit being the first time unit of the time domain resource where the first message is located, or the reference time unit being the first time unit of the time domain resource where the first reference signal is located; or The first downlink signal is a downlink signal occupying a same time domain resource as the first reference signal. The method of claim 35, wherein, The first downlink signal is a downlink signal transmitted before a reference time unit, including: The first downlink signal is a downlink signal satisfying a first condition among a plurality of downlink signals transmitted before a reference time unit; The first condition includes at least one of: a smallest index value of the downlink signal, a largest index value of the downlink signal, a smallest index value of a reference signal resource where the downlink signal is located, a largest index value of the reference signal resource where the downlink signal is located, a downlink signal measured most recently, and a downlink signal with a highest priority. The method of claim 36, wherein, The first downlink signal is a downlink signal satisfying a first condition among a plurality of downlink signals transmitted before a reference time unit, including: The first downlink signal is a downlink signal satisfying the first condition among a plurality of downlink signals transmitted in a time period before the reference time unit, and the time period includes at least one time unit. The method of claim 35, wherein, The first downlink signal is a downlink signal occupying a same time domain resource as the first reference signal, including: The first downlink signal is a downlink signal occupying a same time domain resource as the first reference signal and satisfying a second condition; The second condition includes at least one of: a transmission offset of the first downlink signal being greater than or equal to a second threshold, the first downlink signal being a periodic reference signal, and the first downlink signal being a semi-persistent reference signal. The first downlink signal is scheduled or triggered by a second message, and the transmission offset of the first downlink signal is an offset between a last time unit of a time domain resource where the second message is located and a first time of a time domain resource where the first downlink signal is located. The method of claim 38, wherein, The first downlink signal is a downlink signal transmitted by the first candidate cell, or a downlink signal transmitted by a candidate cell other than the first candidate cell among the at least one candidate cell, or a downlink signal transmitted by a serving cell. The method of any one of claims 35-39, wherein, The first message is carried in a first physical downlink control channel (PDCCH), the second message for triggering or scheduling the first downlink signal is carried in a second PDCCH, the first PDCCH is transmitted based on a first control resource set (CORESET), and the second PDCCH is transmitted based on a second CORESET; A control resource set pool index (CORESETPoolIndex) associated with the first CORESET is the same as a CORESETPoolIndex associated with the second CORESET. The method of any one of claims 35-39, wherein, The first QCL information is QCL information of the first downlink signal, including: If the first downlink signal corresponds to two TCI states, the first QCL information is QCL information in a first TCI state among the two TCI states; The two TCI states corresponding to the first downlink signal are one of: two TCI states configured to the first downlink signal, two activated TCI states of the first downlink signal, or two TCI states indicated to the first downlink signal. The method of claim 34, wherein, The preset rule comprises: the first QCL information is QCL information in a first TCI state, and the first TCI state is one of multiple activated TCI states of the second downlink signal. The method of claim 42, wherein, The first TCI state is a TCI state with a minimum index value in the multiple activated TCI states, or the first TCI state is a TCI state with a maximum index value in the multiple activated TCI states, or the first TCI state is a TCI state corresponding to a minimum TCI codepoint in the multiple activated TCI states, or the first TCI state is a TCI state corresponding to a maximum TCI codepoint in the multiple activated TCI states, or the first TCI state is a first activated TCI state in two activated TCI states corresponding to a first TCI codepoint, or the first TCI state is a first activated TCI state in two activated TCI states corresponding to a second TCI codepoint. The first TCI codepoint is a minimum TCI codepoint in at least one TCI codepoint, the second TCI codepoint is a maximum TCI codepoint in the at least one TCI codepoint, each TCI codepoint in the at least one TCI codepoint corresponds to two activated TCI states, and the multiple activated TCI states of the second downlink signal include activated TCI states corresponding to each TCI codepoint in the at least one TCI codepoint. The method of claim 34, wherein, The preset rule comprises: the first QCL information is QCL information in a second TCI state, the second TCI state is a TCI state of a third control resource set (CORESET), and the third CORESET is a CORESET monitored in at least one latest time slot. The method of claim 44, wherein, The first message is carried in a first PDCCH, and the first PDCCH is transmitted based on a first CORESET. A control resource set pool index (CORESETPoolIndex) associated with the third CORESET is the same as a control resource set pool index (CORESETPoolIndex) associated with the first CORESET. The method of claim 44 or 45, wherein, If the third CORESET corresponds to two TCI states, the second TCI state is a first TCI state in the two TCI states corresponding to the third CORESET. The method of claim 34, wherein, The preset rule comprises: the first QCL information is determined according to QCL information in a third TCI state, the third TCI state is a target TCI state of a target cell indicated in a cell switching command, and the target cell is one of the at least one candidate cell. The method of claim 34, wherein, The preset rule comprises: the first QCL information is determined according to QCL information in a fourth TCI state, and the fourth TCI state is a TCI state corresponding to a reference signal resource of the first candidate cell indicated in a layer 1 / layer 2 triggered mobility (LTM) beam report. The method of any one of claims 34-48, wherein, The first candidate cell and a second candidate cell are configured to be carrier aggregated, and a second reference signal in the second candidate cell is scheduled or triggered by a third message. The method further comprises: If a transmission offset of the second reference signal is less than a third threshold, measuring the second reference signal based on the first QCL information; The transmission offset of the second reference signal is an offset between a last time unit of a time domain resource where the third message is located and a first time unit of a time domain resource where the second reference signal is located. The method of claim 49, wherein, The number of the second candidate cells is at least one, and a cell index value of the first candidate cell is less than a cell index value of each of the at least one second candidate cell; or, the cell index value of the first candidate cell is greater than the cell index value of each of the at least one second candidate cell. The method of claim 34, wherein, The first threshold is determined based on a subcarrier spacing of a serving cell and / or a first subcarrier spacing; The first subcarrier spacing is a subcarrier spacing of the first candidate cell, or the first subcarrier spacing is a minimum subcarrier spacing of the at least one candidate cell, or the first subcarrier spacing is a maximum subcarrier spacing in the at least one candidate cell. The method of claim 34, wherein, The transmission offset of the first reference signal is determined based on a trigger offset value and an increment value, the trigger offset value is a length of a transmission offset configured by a network, and the increment value is a value increased on the basis of the trigger offset value. The method of claim 52, wherein, The increment value is carried in one of the following configuration information: LTM configuration information, configuration information of the first candidate cell, reporting configuration, and reference signal resource configuration information; The LTM configuration information includes the first candidate cell; The reporting configuration is used to configure reporting of a measurement result of the reference signal; The reference signal resource configuration information is associated with the reporting configuration, and the reference signal resource configuration information includes a reference signal resource where the first reference signal is located. A reference signal triggering method, comprising: sending a first message, the first message being used to trigger a reference signal, the reference signal being an aperiodic reference signal of a candidate cell. A communication apparatus, comprising: a receiving unit configured to receive a first message, the first message being used to trigger a reference signal, the reference signal being an aperiodic reference signal of a candidate cell; a measuring unit configured to measure the reference signal according to the first message. A communication apparatus, comprising: a sending unit configured to send a first message, the first message being used to trigger a reference signal, the reference signal being an aperiodic reference signal of a candidate cell. A communication device, wherein, The communication apparatus includes a processor and a memory, the processor and the memory are connected to each other, wherein the memory is used to store a computer program, the computer program includes program instructions, the processor invokes the program instructions to execute the method in any one of claims 31 to 53, or executes the method in claim 54. A chip, wherein, The chip includes a processor and an interface, the processor and the interface are coupled; the interface is used to receive or output signals, and the processor is used to execute code instructions to execute the method in any one of claims 31 to 53, or execute the method in claim 54. A modular device, wherein, The module device comprises a communication module, a power module, a storage module and a chip module, wherein: The power module is configured to provide power for the module device; The storage module is configured to store data and / or instructions; The communication module is configured to communicate with external devices; The chip module is configured to invoke the data and / or instructions stored in the storage module, in combination with the communication module, to execute the method according to any one of claims 31 to 53, or execute the method according to claim 54. A computer-readable storage medium, wherein, The computer readable storage medium stores a computer program, and the computer program comprises program instructions, when the computer executes the program instructions, the method according to any one of claims 31 to 53 is implemented, or the method according to claim 54 is implemented.

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