Indication information transmission methods, apparatuses and storage medium

Abstract

The present disclosure relates to indication information transmission methods, apparatuses and a storage medium. A method comprises: a terminal receiving indication information sent by a network device, wherein the network device comprises multiple transmission reception points (TRPs), and the indication information is used for indicating activation of a transmission configuration indicator (TCI) state of at least one TRP; and, on the basis of a terminal capability, determining an occasion of using the activated TCI state. In the method of the present disclosure, on the basis of indication information sent by a network device, a terminal obtains TCI states to be activated in multi-TRP scenarios, so as to activate the TCI states; for the activated TCI states, on the basis of own capability, the terminal adaptively determines occasions of using the TCI states, so that when activation completion times of a plurality of TCI states are different, the terminal can use corresponding TCI states at appropriate occasions.

Description

Method, device and storage medium for transmitting indication information Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a method, device, and storage medium for transmitting indication information. Background Art

[0002] In new radio (NR), a transmission configuration indicator (TCI) can be used to indicate spatial information for different channels and / or reference signals, such as receive or transmit beam information. The activation completion time may vary for different TCI states.

[0003] Summary of the Invention

[0004] In a multiple transmission reception point (mTRP) scenario, multiple TCI states are activated, and activation completion times of the multiple TCI states are different.

[0005] Embodiments of the present disclosure provide a method, device, and storage medium for transmitting indication information.

[0006] In a first aspect, an embodiment of the present disclosure provides a method for transmitting indication information, the method comprising:

[0007] The terminal receives indication information sent by a network device, wherein the network device includes multiple transmission reception points TRPs, and the indication information is used to indicate activation of a transmission configuration indication TCI state of at least one TRP;

[0008] The application timing of the activated TCI state is determined according to the terminal capabilities.

[0009] In a second aspect, an embodiment of the present disclosure provides a method for transmitting indication information, the method comprising:

[0010] The network device sends indication information to the terminal, where the network device includes multiple TRPs, and the indication information is used to indicate activation of a TCI state of at least one TRP;

[0011] The application timing of the activated TCI state is determined according to the terminal capabilities.

[0012] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0013] a transceiver module, configured to receive indication information sent by a network device, wherein the network device includes multiple TRPs, and the indication information is used to indicate activation of a transmission configuration indication (TCI) state of at least one TRP;

[0014] The processing module is used to determine the application timing of the activated TCI state according to the terminal capability.

[0015] In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

[0016] a transceiver module, configured to send indication information to a terminal, wherein the network device includes a plurality of TRPs, and the indication information is used to indicate activation of a TCI state of at least one TRP;

[0017] The processing module is used to determine the application timing of the activated TCI state according to the terminal capability.

[0018] In a fifth aspect, an embodiment of the present disclosure provides a communication device, including:

[0019] one or more processors;

[0020] The communication device is used to execute the method of the first aspect.

[0021] In a sixth aspect, an embodiment of the present disclosure provides a communication device, including:

[0022] one or more processors;

[0023] The communication device is used to execute the method of the second aspect.

[0024] In a seventh aspect, an embodiment of the present disclosure provides a communication system, including a terminal and a network device, wherein:

[0025] The terminal is configured to implement the method of the first aspect;

[0026] The network device is configured to implement the method of the second aspect.

[0027] In an eighth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0028] When the instructions are executed on the communication device, the communication device is caused to execute the method of the first aspect or the second aspect.

[0029] In the disclosed method, a terminal obtains the TCI states to be activated in a multi-TRP scenario based on indications sent by a network device, allowing activation of those TCI states. For each activated TCI state, the terminal adaptively determines when to apply that TCI state based on its own capabilities. This allows the terminal to apply the corresponding TCI state at the appropriate time if the activation completion times for multiple TCI states differ. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0031] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0032] FIG2a is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0033] 2b to 2c are schematic diagrams of time domain positions of TCI state activation according to an embodiment of the present disclosure;

[0034] 3a to 3c are schematic flow diagrams of a method performed by a terminal according to an embodiment of the present disclosure;

[0035] 4a to 4c are flowcharts of methods performed by a network device according to an embodiment of the present disclosure;

[0036] FIG5a is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

[0037] FIG5b is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

[0038] FIG6a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0039] FIG6 b is a schematic diagram of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0040] Embodiments of the present disclosure provide a method, device, and storage medium for transmitting indication information.

[0041] In a first aspect, an embodiment of the present disclosure provides a method for transmitting indication information, the method comprising:

[0042] The terminal receives indication information sent by a network device, wherein the network device includes multiple transmission reception points TRPs, and the indication information is used to indicate activation of a transmission configuration indication TCI state of at least one TRP;

[0043] The application timing of the activated TCI state is determined according to the terminal capabilities.

[0044] In the above embodiment, the terminal obtains the TCI states to be activated in a multi-TRP scenario based on the indication information sent by the network device, thereby activating those TCI states. For each activated TCI state, the terminal adapts its capabilities to determine when to apply that TCI state. Therefore, if the activation completion times of multiple TCI states differ, the terminal can apply the corresponding TCI state at the appropriate time.

[0045] In conjunction with the embodiments of the first aspect, in some embodiments, determining the application timing of the activated TCI state according to the terminal capability includes:

[0046] Determining, based on the activation delay corresponding to each TRP in at least one TRP, an application timing of the TCI state of the corresponding TRP, wherein the terminal supports the ability to perform data communication according to the corresponding TCI state after the TCI state of any TRP in the multiple TRPs is activated; or

[0047] Determine the application timing of the TCI state of at least one TRP based on the maximum value of the activation delay corresponding to at least one TRP, wherein the terminal does not support the ability to perform data communication based on the corresponding TCI state after the TCI state of any TRP in multiple TRPs is activated.

[0048] In the above embodiment, when the terminal supports the ability to apply the corresponding TCI state after the TCI state of any TRP among multiple TRPs is activated, the terminal can determine the application timing of the TCI state of each TRP based on the activation delay corresponding to each TRP, without waiting for the TCI states of other TRPs to be activated, thereby improving system capacity. If the terminal does not support the aforementioned capability, the terminal needs to determine the application timing of the TCI state of each TRP based on the maximum value of the different activation delays, so as to ensure the communication quality with the network device.

[0049] In combination with the embodiments of the first aspect, in some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information and the processing time of the downlink reference signal RS, wherein the TCI state is a known type (known) downlink DL TCI state.

[0050] In the above embodiment, when the TCI state is a known type DL TCI state, the terminal can determine the activation delay of the TCI state corresponding to any TRP, so as to apply the TCI state at an appropriate time.

[0051] In conjunction with the embodiments of the first aspect, in some embodiments, the activation delay time T satisfies:

[0052] Time slot length;

[0053] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T first-SSB Indicates the time between receiving the indication information and sending the first downlink RS by any TRP, T SSB-proc is the downlink RS processing time, with TO k is a constant.

[0054] In the above embodiment, the parameters and method for determining the activation delay of a known type of DL TCI state are illustrated, so that the terminal can determine the activation delay of the TCI state of the TRP accordingly.

[0055] In combination with the embodiments of the first aspect, in some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS and the beam measurement time, wherein the TCI state is a DL TCI state of unknown type (unknown).

[0056] In the above embodiment, when the TCI state is an unknown type DL TCI state, the terminal can determine the activation delay of the TCI state corresponding to any TRP based on parameters such as the beam measurement time, so as to determine the timing of applying the TCI state.

[0057] In conjunction with the embodiments of the first aspect, in some embodiments, the activation delay time T satisfies:

[0058] Time slot length;

[0059] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T L1-RSRP Indicates the time of the layer 1 reference signal received power L1-RSRP measurement in the beam measurement, T first-SSB Indicates the time between receiving the indication information and sending the first downlink RS by any TRP, T SSB-proc is the downlink RS processing time, with TO uk is a constant.

[0060] In the above embodiment, the parameters and method for determining the activation delay of the unknown type DL TCI state are illustrated, so that the terminal can determine the activation delay of the TCI state of the TRP based on the parameters and method.

[0061] In combination with the embodiments of the first aspect, in some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS and the uplink path loss measurement time, wherein the TCI state is an uplink UL TCI state of a known type.

[0062] In the above embodiment, when the TCI state is a known type UL TCI state, the terminal can determine the activation delay of the TCI state corresponding to any TRP based on parameters such as the uplink path loss measurement time, so as to determine the timing of applying the TCI state.

[0063] In conjunction with the embodiments of the first aspect, in some embodiments, the activation delay time T satisfies:

[0064] Time slot length;

[0065] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T first-target-PL-RS Indicates the time between receiving the indication information and the first downlink RS used for uplink path loss measurement, T target-PL-RS Indicates the downlink RS period, and NM are constants.

[0066] In the above embodiment, the parameters and method for determining the activation delay of a known type of UL TCI state are illustrated, so that the terminal can determine the activation delay of the TCI state of the TRP based on this.

[0067] In combination with the embodiments of the first aspect, in some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS, the uplink path loss measurement time and the beam measurement time, wherein the TCI state is an unknown type of UL TCI state.

[0068] In the above embodiment, when the TCI state is an unknown type UL TCI state, the terminal can determine the activation delay of the TCI state corresponding to any TRP based on parameters such as the uplink path loss measurement time and the beam measurement time, so as to determine the timing of applying the TCI state.

[0069] In conjunction with the embodiments of the first aspect, in some embodiments, the activation delay time T satisfies:

[0070] Time slot length;

[0071] Where n represents the time when the instruction information is received, T HARQIndicates the time between the indication information and the corresponding confirmation feedback information, T L1-RSRP Indicates the time of L1-RSRP measurement in beam measurement, T first-target-PL-RS Indicates the time between receiving the indication information and the first downlink RS used for uplink path loss measurement, T target-PL-RS Indicates the downlink RS period, is a constant.

[0072] In the above embodiment, the parameters and method for determining the activation delay of the unknown type UL TCI state are illustrated, so that the terminal can determine the activation delay of the TCI state of the TRP based on this.

[0073] In combination with the embodiments of the first aspect, in some embodiments, after the terminal receives the indication information, the TCI state applied before the indication information can continue to be applied before time t, and t satisfies:

[0074] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, is a constant.

[0075] In the above embodiment, after receiving the indication information and when the new TCI state indicated by the indication information has not yet been activated, the terminal may apply the original TCI state or the old TCI state to maintain data communication with the network device.

[0076] In conjunction with the embodiments of the first aspect, in some embodiments, the plurality of TRPs include a first TRP and a second TRP, and the method further includes:

[0077] During the first period except the second period, the terminal communicates data with the first TRP according to the activated TCI state, wherein the first period is the period from the completion of the TCI state activation of the first TRP to the completion of the TCI state activation of the second TRP, and the second period is the period during which the RS appears during the TCI state activation process of the second TRP;

[0078] Among them, the terminal supports the ability to perform data communication according to the corresponding TCI state after the TCI state of any TRP among multiple TRPs is activated.

[0079] In the above embodiment, for a terminal that supports the ability to apply the corresponding TCI state after the TCI state activation of any TRP among multiple TRPs is completed, it can receive the scheduling of the first TRP after completing the TCI state activation of the first TRP, but during the RS transmission period related to the TCI state activation of other TRPs, the terminal does not expect the first TRP to perform data scheduling to ensure the activation process of the TCI states of other TRPs.

[0080] In conjunction with the embodiments of the first aspect, in some embodiments, the second time period includes one of the following:

[0081] The time domain unit where the RS used for the TCI state activation process of the second TRP is located, wherein the delay RTD is less than or equal to the cyclic prefix CP, and RTD is the delay between the RS used for the TCI state activation of the first TRP and the RS used for the TCI state activation of the second TRP;

[0082] A time domain unit and a time domain unit before or after the time domain unit, wherein the RTD is greater than the CP.

[0083] In the above embodiment, according to the relationship between the RS sending delay and CP of different TRPs, the second time period that the terminal does not expect to be scheduled can be one time domain unit or multiple time domain units to meet the duration requirement of the terminal for activating the TCI state.

[0084] In conjunction with the embodiments of the first aspect, in some embodiments, the terminal behavior in the application opportunity includes one of the following:

[0085] Receive the physical downlink control channel (PDCCH) or the physical downlink shared channel (PDSCH) according to the activated TCI state;

[0086] According to the activated TCI state, the physical uplink shared channel PUSCH is sent.

[0087] In the above embodiment, based on the activated TCI state, the terminal can receive a downlink channel sent by the network device, or send an uplink channel to the network device, so that the network device can reasonably perform data communication.

[0088] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0089] The terminal sends capability information to the network device, where the capability information is used to indicate the terminal capabilities.

[0090] In the above embodiment, the terminal can report its own capabilities to the network device by sending capability information, so that the network device can know whether the terminal supports the ability to apply the corresponding TCI state after the TCI state of any TRP in multiple TRPs is activated, so as to adapt to the terminal's capabilities and perform reasonable scheduling.

[0091] In a second aspect, an embodiment of the present disclosure provides a method for transmitting indication information, the method comprising:

[0092] The network device sends indication information to the terminal, where the network device includes multiple TRPs, and the indication information is used to indicate activation of a TCI state of at least one TRP;

[0093] The application timing of the activated TCI state is determined according to the terminal capabilities.

[0094] In conjunction with the embodiments of the second aspect, in some embodiments, determining the application timing of the activated TCI state according to the terminal capability includes:

[0095] Determining, based on the activation delay corresponding to each TRP in at least one TRP, an application timing of the TCI state of the corresponding TRP, wherein the terminal supports the ability to perform data communication according to the corresponding TCI state after the TCI state of any TRP in the multiple TRPs is activated; or

[0096] Determine the application timing of the TCI state of at least one TRP based on the maximum value of the activation delay corresponding to at least one TRP, wherein the terminal does not support the ability to perform data communication based on the corresponding TCI state after the TCI state of any TRP in multiple TRPs is activated.

[0097] In combination with the embodiments of the second aspect, in some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information and the processing time of the downlink RS, wherein the TCI state is a downlink DL TCI state of a known type.

[0098] In conjunction with the embodiments of the second aspect, in some embodiments, the activation delay time T satisfies:

[0099] Time slot length;

[0100] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T first-SSB Indicates the time between receiving the indication information and sending the first downlink RS by any TRP, T SSB-proc is the downlink RS processing time, with TO k is a constant.

[0101] In combination with the embodiments of the second aspect, in some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS and the beam measurement time, wherein the TCI state is a DL TCI state of unknown type.

[0102] In conjunction with the embodiments of the second aspect, in some embodiments, the activation delay time T satisfies:

[0103] Time slot length;

[0104] Where n represents the time when the instruction information is received, THARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T L1-RSRP Indicates the time of the layer 1 reference signal received power L1-RSRP measurement in the beam measurement, T first-SSB Indicates the time between receiving the indication information and sending the first downlink RS by any TRP, T SSB-proc is the downlink RS processing time, with TO uk is a constant.

[0105] In combination with the embodiments of the second aspect, in some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS and the uplink path loss measurement time, wherein the TCI state is an uplink UL TCI state of a known type.

[0106] In conjunction with the embodiments of the second aspect, in some embodiments, the activation delay time T satisfies:

[0107] Time slot length;

[0108] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T first-target-PL-RS Indicates the time between receiving the indication information and the first downlink RS used for uplink path loss measurement, T target-PL-RS Indicates the downlink RS period, and NM are constants.

[0109] In combination with the embodiments of the second aspect, in some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS, the uplink path loss measurement time and the beam measurement time, wherein the TCI state is an unknown type of UL TCI state.

[0110] In conjunction with the embodiments of the second aspect, in some embodiments, the activation delay time T satisfies:

[0111] Time slot length;

[0112] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T L1-RSRP Indicates the time of L1-RSRP measurement in beam measurement, T first-target-PL-RS Indicates the time between receiving the indication information and the first downlink RS used for uplink path loss measurement, T target-PL-RSIndicates the downlink RS period, is a constant.

[0113] In conjunction with the embodiments of the second aspect, in some embodiments, after the terminal receives the indication information, the TCI state applied before the indication information can continue to be applied before time t, and t satisfies:

[0114] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, is a constant.

[0115] In conjunction with the embodiments of the second aspect, in some embodiments, the plurality of TRPs include a first TRP and a second TRP, and the method further includes:

[0116] During the first period except the second period, the terminal communicates data with the first TRP according to the activated TCI state, wherein the first period is the period from the completion of the TCI state activation of the first TRP to the completion of the TCI state activation of the second TRP, and the second period is the period during which the RS appears during the TCI state activation process of the second TRP;

[0117] Among them, the terminal supports the ability to perform data communication according to the corresponding TCI state after the TCI state of any TRP among multiple TRPs is activated.

[0118] In conjunction with the embodiments of the second aspect, in some embodiments, the second time period includes one of the following:

[0119] The time domain unit where the RS used for the TCI state activation process of the second TRP is located, wherein the delay RTD is less than or equal to the cyclic prefix CP, and RTD is the delay between the RS used for the TCI state activation of the first TRP and the RS used for the TCI state activation of the second TRP;

[0120] A time domain unit and a time domain unit before or after the time domain unit, wherein the RTD is greater than the CP.

[0121] In conjunction with the embodiments of the second aspect, in some embodiments, the behavior of the network device in the application opportunity includes one of the following:

[0122] Send the physical downlink control channel PDCCH or the physical downlink shared channel PDSCH according to the activated TCI state;

[0123] According to the activated TCI state, the physical uplink shared channel PUSCH is received.

[0124] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0125] The network device receives capability information sent by the terminal, where the capability information is used to indicate the terminal capability.

[0126] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0127] a transceiver module, configured to receive indication information sent by a network device, wherein the network device includes multiple TRPs, and the indication information is used to indicate activation of a transmission configuration indication (TCI) state of at least one TRP;

[0128] The processing module is used to determine the application timing of the activated TCI state according to the terminal capability.

[0129] In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

[0130] a transceiver module, configured to send indication information to a terminal, wherein the network device includes a plurality of TRPs, and the indication information is used to indicate activation of a TCI state of at least one TRP;

[0131] The processing module is used to determine the application timing of the activated TCI state according to the terminal capability.

[0132] In a fifth aspect, an embodiment of the present disclosure provides a communication device, including:

[0133] one or more processors;

[0134] The communication device is used to execute the method of the first aspect.

[0135] In a sixth aspect, an embodiment of the present disclosure provides a communication device, including:

[0136] one or more processors;

[0137] The communication device is used to execute the method of the second aspect.

[0138] In a seventh aspect, an embodiment of the present disclosure provides a communication system, including a terminal and a network device, wherein:

[0139] The terminal is configured to implement the method of the first aspect;

[0140] The network device is configured to implement the method of the second aspect.

[0141] In an eighth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0142] When the instructions are executed on the communication device, the communication device is caused to execute the method of the first aspect or the second aspect.

[0143] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0144] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0145] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0146] It is understandable that the above-mentioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0147] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0148] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0149] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0150] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0151] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0152] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0153] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0154] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0155] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0156] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0157] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0158] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0159] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0160] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0161] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0162] In some embodiments, in some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", "node (node)", "access point (access point)", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP))", "panel (panel)", "antenna panel (antenna panel)", "antenna array (antenna array)", "cell (cell)", "macro cell (macro cell)", "small cell (small cell)", "femto cell (femto cell)", "pico cell (pico cell)", "sector (sector)", "cell group (cell)", "serving cell (cell)", "carrier (carrier)", "component carrier (component carrier)", "bandwidth part (bandwidth part, BWP)" and the like can be used interchangeably.

[0163] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0164] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0165] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0166] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0167] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0168] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0169] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0170] As shown in FIG. 1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0171] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0172] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0173] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0174] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0175] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0176] In some embodiments, a core network device may be a single device comprising one or more network elements, or may be a plurality of devices or a group of devices, each comprising all or part of one or more network elements. A network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0177] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0178] The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0179] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0180] In an embodiment of the present disclosure, in an mTRP scenario, the network device 102 includes multiple TRPs.

[0181] In the embodiment of the present disclosure, TCI states of different TRPs will be activated in the mTRP scenario. The activation completion time of different TCI states is different, and the behavior of the terminal in this scenario needs to be defined.

[0182] FIG2a is an interactive diagram illustrating a method for transmitting indication information according to an embodiment of the present disclosure. As shown in FIG2a , an embodiment of the present disclosure relates to a method for transmitting indication information, the method comprising:

[0183] Step S2101 : Terminal 101 sends capability information to network device 102 .

[0184] In some embodiments, the capability information is used to indicate terminal capabilities.

[0185] Optionally, the terminal capability includes whether the terminal supports the ability to apply the corresponding TCI state after the TCI state activation of any TRP in multiple TRPs is completed, or this capability is simply referred to as a high capability (more advanced implementation capability), and the capability information is used to indicate whether the terminal 101 supports the high capability.

[0186] Optionally, if the terminal 101 supports the above-mentioned high capabilities, after completing the TCI state activation of a TRP in the mTRP scenario, data communication can be performed according to the TCI state, such as being scheduled by the TRP without waiting for the TCI state activation of other TRPs to be completed.

[0187] Optionally, if the terminal 101 does not support the above-mentioned high capabilities, in the mTRP scenario, the terminal 101 needs to complete the TCI state activation of all TRPs that need to be activated before receiving the scheduling of the corresponding TRP.

[0188] In some embodiments, network device 102 receives the capability information.

[0189] In step S2102 , the network device 102 sends instruction information to the terminal 101 .

[0190] In some embodiments, the indication information is used to indicate activation of a TCI state of at least one TRP.

[0191] Optionally, the activated TCI state indicated in the indication information may be recorded as a target TCI state or a new TCI state. The TCI state applied before the target TCI state or currently applied may be referred to as an original TCI state or an old TCI state.

[0192] Optionally, the beam of the downlink channel and / or uplink channel may be updated by indicating the target TCI state in the information.

[0193] Optionally, in the mTRP scenario, the network device 102 that sends the indication information can be any TRP.

[0194] In some embodiments, the indication information may be sent via a Media Access Control Control Element (MAC CE).

[0195] In one example, the network device 102 may indicate activation of a unified TCI state for multiple TRPs using a single indication message, such as a MAC CE. For example, an mTRP includes a first TRP (or TRP1) and a second TRP (or TRP2). The network device 102 indicates activation of both TCI states, namely, the TCI state of TRP1 and the TCI state of TRP2, by sending a single MAC CE.

[0196] In another example, the network device 102 may activate the unified TCI state of one TRP through a single MAC CE, and may activate the unified TCI state of multiple TRPs through multiple indication information, such as MAC CEs. For example, if an mTRP includes TRP1 and TRP2, the network device 102 may activate the TCI state of TRP1 through a single MAC CE and activate the TCI state of TRP2 through another MAC CE.

[0197] In some embodiments, before sending indication information such as MAC CE, the network device 102 may configure a TCI state list for the terminal 101 through radio resource control (RRC).

[0198] In some embodiments, terminal 101 receives the indication information.

[0199] Step S2103: Determine the application timing of the activated TCI state according to the terminal capability.

[0200] In some embodiments, the terminal capabilities include whether the above-mentioned high capabilities are supported.

[0201] In some embodiments, the application timing may refer to the timing when the terminal 101 performs data communication based on the activated TCI state, or the timing when the network device 102 performs scheduling based on the activated TCI state. The application timing may be time, duration or period.

[0202] In some embodiments, after receiving the indication information, terminal 101 activates the TCI state after an activation delay corresponding to the TCI state in the indication information. After completing the TCI state activation, terminal 101 may perform data communication based on the activated TCI state, or apply the TCI state. For example, terminal 101 may receive a downlink channel with the activated TCI state.

[0203] In some embodiments, step S2103 may include one of the following examples:

[0204] In one example, the terminal 101 determines the application timing of the TCI state of the corresponding TRP based on the activation delay corresponding to each TRP in at least one TRP, wherein the terminal supports the ability to perform data communication according to the corresponding TCI state after the TCI state activation of any TRP in multiple TRPs is completed.

[0205] In this example, if the terminal 101 supports the above-mentioned high capability, after completing the activation of the TCI state of any TRP, data communication can be carried out based on the TCI state. Referring to Figure 2b, mTRP includes TRP1 and TRP2. The terminal 101 receives a MAC CE at time T0, which indicates the activation of the TCI state of TRP1 and the TCI state of TRP2. The activation delay delay corresponding to TRP1, that is, the activation delay delay of the TCI state of TRP1 includes T activationDelay_TRP1 If the activation delay time corresponding to TRP1 is (T0~T2), the terminal 101 completes the activation of the TCI state of TRP1 at time T2. The activation delay time corresponding to TRP2, that is, the activation delay time of the TCI state of TRP2 includes T activationDelay_TRP2 If the activation delay corresponding to TRP2 is a period of (T0 to T3), the terminal 101 completes the activation of the TCI state of TRP2 at time T3.

[0206] In this example, for a terminal 101 supporting the aforementioned high capability, the terminal 101 may determine the start time of the TCI state application opportunity for TRP1 as T2, and the start time of the TCI state application opportunity for TRP2 as T3. For example, starting at T2, the physical downlink shared channel (PDSCH) or downlink physical downlink control channel (PDCCH) scheduled by TRP1 may be received, with PDSCH1 being used as an example in the figure; and starting at T3, the PDSCH or PDCCH scheduled by TRP2 may be received, with PDSCH2 being used as an example in the figure.

[0207] In another example, the terminal 101 determines the application timing of the TCI state of at least one TRP based on the maximum value of the activation delay period corresponding to at least one TRP, wherein the terminal does not support the ability to perform data communication according to the corresponding TCI state after the activation of the TCI state of any TRP in multiple TRPs is completed.

[0208] In this example, if the terminal 101 does not support the above-mentioned high capabilities, after completing the activation of the TCI status of all TRPs that need to be activated, data communication is performed based on the TCI status. Referring to Figure 2c, mTRP includes TRP1 and TRP2. The terminal 101 receives a MAC CE at time T0, which indicates the activation of the TCI status of TRP1 and the TCI status of TRP2. If the activation delay corresponding to TRP1 is a period of (T0 to T2), the terminal 101 completes the activation of the TCI status of TRP1 at time T2; if the activation delay corresponding to TRP2 is a period of (T0 to T3), the terminal 101 completes the activation of the TCI status of TRP2 at time T3.

[0209] In this example, for the terminal 101 that does not support the high capability, the terminal 101 may determine that the start time of applying the two TCI states is T3, such as starting to receive PDSCH1 scheduled by TRP1 from T3 and starting to receive PDSCH2 scheduled by TRP2 from T3.

[0210] In some embodiments, when determining the application opportunity, it is necessary to know the activation delay of each TCI state. Depending on the type of TCI state, the corresponding activation delay is different.

[0211] Optionally, the unified TCI state includes a known type (or simply known) and an unknown type (or simply unknown).

[0212] Optionally, the unified TCI state may be a downlink (DL) TCI state and / or an uplink (UL) TCI state.

[0213] Optionally, during activation of different types of TCI states, the terminal 101 performs different operations based on corresponding downlink reference signals (RS), and the corresponding activation delays are different.

[0214] In some embodiments, whether each DL TCI state is of a known type may be determined based on the following conditions: If the following conditions are met, the DL TCI state is known:

[0215] (1) Within a defined period of time, the following conditions must be met:

[0216] A DL TCI state activation or switching command (such as an indication) is received within 1280 ms after the last transmission of the RS resource used for beam measurement;

[0217] Before the indication information, the terminal 101 has sent at least one layer 1 reference signal received power (L1-RSRP) report for the target DL TCI state;

[0218] During DL TCI state activation or switching, the target DL TCI state remains detectable;

[0219] During a DL TCI state activation or switching period, RSs associated with the DL TCI state, such as synchronization signal / physical broadcast channel blocks (SSBs), remain detectable; wherein the signal to interference plus noise ratio (SNR) corresponding to the DL TCI state is ≥ -3dB, and the SSBs may be associated with the physical cell identifier (PCI) of the serving cell or with a PCI different from the serving cell PCI;

[0220] The starting point of the defined time period is: the time of the last transmission of the RS resource for the L1-RSRP measurement reporting (measurement reporting) of the target DL TCI state, and the end point of the time period is: the time when the activation of the DL TCI state is completed, wherein the RS resource used for L1-RSRP measurement is the RS of the target DL TCI state, or the RS that is quasi co-located (QCLed or QCL) with the target DL TCI state.

[0221] (2) If (1) is not satisfied, the DL TCI status is unknown.

[0222] In some embodiments, whether each UL TCI state is of a known type may be determined based on the following conditions: If the following conditions are met, the UL TCI state is known:

[0223] (1) Within a defined period of time, the following conditions must be met:

[0224] A UL TCI state activation or switching command (such as an indication message) is received within 1280 ms after the last transmission of the RS resource used for beam measurement;

[0225] Before the indication information, the terminal 101 has sent at least one L1-RSRP report for the target UL TCI state;

[0226] During UL TCI state activation or switching, the RS configured in the target UL TCI state remains detectable; wherein the SNR corresponding to the RS configured in the target UL TCI state is ≥ -3dB;

[0227] During UL TCI state activation or switching, the UL TCI state remains detectable;

[0228] During UL TCI state activation or handover, the SSB associated with the UL TCI state remains detectable, where the SNR corresponding to the UL TCI state is ≥ -3dB. The SSB may be associated with the PCI of the serving cell or with a PCI different from the serving cell PCI.

[0229] The starting point of the defined time period is: the time of the last transmission of the RS resource for the L1-RSRP measurement report of the target UL TCI state, and the end of the time period is: the time when the activation of the UL TCI state is completed, wherein the RS resource used for L1-RSRP measurement is the RS of the target DL TCI state, or the RS that is QCLed with the target DL TCI state.

[0230] (2) If (1) is not satisfied, the UL TCI status is unknown.

[0231] In some embodiments, based on the aforementioned known types of conditions, the TCI state pairs configured by the network device 102 may have the following different combinations:

[0232] (1) Known TCI status vs. known TCI status;

[0233] (2) known TCI status and unknown TCI status;

[0234] (3) unknown TCI status vs. unknown TCI status;

[0235] Taking mTRP including TRP1 and TRP2 as an example, the TCI states in the above TCI state pair may correspond to TRP1 and TRP2 respectively. In each combination, the terminal 101 may determine the application timing corresponding to the two TCI states based on the terminal capabilities.

[0236] Optionally, the terminal 101 may determine the activation delay of the TCI state corresponding to each TRP according to the following example.

[0237] In the first example, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information and the processing time of the downlink RS, wherein the TCI state is a DL TCI state of a known type.

[0238] Optionally, the processing time of the indication information includes, for example, the processing time of demodulation of MAC CE.

[0239] Optionally, the MAC CE may be carried in the PDSCH.

[0240] Optionally, when the TCI state is a known DL TCI state, the terminal 101 performs time / frequency tracking during the activation process.

[0241] Alternatively, RS may be SSB.

[0242] Optionally, the activation delay T satisfies:

[0243] slot length;

[0244] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T first-SSB Indicates the time between receiving the indication information and sending the first downlink RS by any TRP, T SSB-proc is the downlink RS processing time, with TO k is a constant.

[0245] It is worth noting that in the process of determining the activation delay corresponding to any TRP, the indication information is the indication information indicating the activation of the TCI state of the TRP, and the downlink RS is the RS sent by the TRP to activate its own TCI state. The following embodiments may refer to this description.

[0246] Optionally, the above time may be a time slot.

[0247] Optionally, if the target TCI state is not in the activated TCI state list corresponding to the downlink channel, TO k =1, otherwise, TO k =0.

[0248] Optionally, T SSB-proc =2ms.

[0249] Optionally, the TCI state is applied after T. For example, after receiving the indication information, the terminal 101 completes TCI state activation or switching in the first time slot after T, that is, switches from the old TCI state to the target TCI state, and can apply the target TCI state, such as receiving a downlink channel PDSCH or PDCCH with the target TCI state.

[0250] In this example, taking mTRP including TRP1 and TRP2 as an example, if the TCI state pair of the two TRPs satisfies combination (1), that is, the TCI state of TRP1 is the known DL TCI state, and the TCI state of TRP2 is the known DL TCI state:

[0251] For UE 101 supporting the aforementioned high capabilities, after completing activation for each TCI state, UE 101 can communicate data based on that TCI state. For example, in the first time slot after T corresponding to TRP, UE 101 communicates data with TRP1 based on TRP1's TCI state. This data communication, for example, includes UE 101 receiving the PDSCH or PDCCH transmitted by the corresponding TRP.

[0252] For the terminal 101 that does not support the above high capability, the maximum value of the activation delay can be determined, and data communication is performed based on two TCI states after the maximum value. In the first time slot thereafter, terminal 101 communicates with TRP1 based on the TCI state data of TRP1, and terminal 101 communicates with TRP2 based on the TCI state data of TRP2. Data communication, for example, includes terminal 101 receiving the PDSCH or PDCCH sent by the corresponding TRP.

[0253] Among them, T first-SSB1 It represents the time from when terminal 101 decodes MAC CE to when TRP1 sends the first SSB, T first-SSB2 Indicates the time from when terminal 101 decodes the MAC CE to when TRP2 sends the first SSB. The SSB is QCL Type A (Type A) or QCL Type C of the target TCI state.

[0254] In the second example, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS and the beam measurement time, wherein the TCI state is a DL TCI state of unknown type.

[0255] Optionally, when the TCI state is an unknown DL TCI state, the terminal 101 performs beam measurement such as L1-RSRP measurement during the activation process.

[0256] Optionally, the activation delay T satisfies:

[0257] Time slot length;

[0258] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T L1-RSRP Indicates the time of L1-RSRP measurement in beam measurement, T first-SSB Indicates the time between receiving the indication information and sending the first downlink RS by any TRP, T SSB-proc is the downlink RS processing time, With TOu k is a constant.

[0259] Optionally, the meaning of the parameters can also refer to the description of the above examples.

[0260] In this example, the mTRP includes TRP1 and TRP2. If the TCI status of the two TRPs satisfies combination (2), such as the TCI status of TRP1 is a known DL TCI status and the TCI status of TRP2 is an unknown DL TCI status:

[0261] For the terminal 101 supporting the above high capabilities, after completing the activation corresponding to each TCI state, the terminal 101 can perform data communication based on the TCI state. In the first time slot thereafter, the terminal 101 communicates with the TRP1 based on the TCI status data of the TRP1, such as receiving the PDSCH or PDCCH sent by the TRP1. In the first time slot thereafter, the terminal 101 communicates with the TRP2 based on the TCI status data of the TRP2, such as receiving the PDSCH or PDCCH sent by the TRP2.

[0262] For the terminal 101 that does not support the above high capability, the maximum value of the activation delay can be determined, and data communication is performed based on two TCI states after the maximum value. In the first time slot thereafter, terminal 101 communicates with TRP1 based on the TCI state data of TRP1, and terminal 101 communicates with TRP2 based on the TCI state data of TRP2. Data communication, for example, includes terminal 101 receiving the PDSCH or PDCCH sent by the corresponding TRP.

[0263] Among them, T first-SSB1 It represents the time from when terminal 101 decodes MAC CE to when TRP1 sends the first SSB, T first-SSB2Indicates the time from when terminal 101 decodes the MAC CE to when TRP2 sends the first SSB. The SSB is QCL Type A (Type A) or QCL Type C of the target TCI state.

[0264] T L1-RSRP2 is the time for beam measurement of TRP2 in the frequency range FR2.

[0265] In a third example, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS and the uplink path loss measurement time, wherein the TCI state is a UL TCI state of a known type.

[0266] Optionally, when the TCI state is a known UL TCI state, the terminal 101 performs uplink path loss measurement during the activation process, such as measuring a path loss reference signal (PL-RS).

[0267] Optionally, the activation delay T satisfies:

[0268] Time slot length;

[0269] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T first-target-PL-RS Indicates the time between receiving the indication information and the first downlink RS used for uplink path loss measurement, T target-PL-RS Indicates the downlink RS period, and NM are constants.

[0270] Optionally, the RS used for path loss measurement is sent by the TRP corresponding to the activation delay.

[0271] Optionally, the meaning of the parameters can also refer to the description of the above examples.

[0272] Optionally, the timing of applying different TCI states may be determined based on the capabilities of the terminal 101 and the TCI state combined with the known UL TCI state.

[0273] In the fourth example, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS, the uplink path loss measurement time and the beam measurement time, wherein the TCI state is an unknown type of UL TCI state.

[0274] Optionally, when the TCI state is an unknown UL TCI state, the terminal 101 performs uplink path loss measurement and beam measurement during the activation process.

[0275] Optionally, the activation delay T satisfies:

[0276] Time slot length;

[0277] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T L1-RSRP Indicates the time of L1-RSRP measurement in beam measurement, T first-target-PL-RS Indicates the time between receiving the indication information and the first downlink RS used for uplink path loss measurement, T target-PL-RS Indicates the downlink RS period, is a constant.

[0278] Optionally, the meaning of the parameters can also refer to the description of the above examples.

[0279] In this example, the mTRP includes TRP1 and TRP2. If the TCI status of the two TRPs satisfies combination (3), such as the TCI status of TRP1 is a known UL TCI status and the TCI status of TRP2 is an unknown UL TCI status:

[0280] For the terminal 101 supporting the above high capabilities, after completing the activation corresponding to each TCI state, the terminal 101 can perform data communication based on the TCI state. Time slot, terminal 101 sends an uplink channel or signal to TRP1 based on the target TCI state of TRP1. Time slot, terminal 101 sends an uplink channel or signal to TRP2 based on the target TCI state of TRP2.

[0281] For the terminal 101 that does not support the above high capability, the maximum value of the activation delay can be determined, and data communication is performed based on two TCI states after the maximum value. In a time slot, terminal 101 communicates with TRP1 based on the TCI status data of TRP1, and terminal 101 communicates with TRP2 based on the TCI status data of TRP2. Data communication, for example, includes terminal 101 sending an uplink channel or signal, such as a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH), to the corresponding TRP.

[0282] Optionally, the above determination method may be applicable to a separate UL TCI state switch or a joint TCI state switch of a PUCCH or PUSCH, or a semi-persistent, aperiodic or periodic channel sounding reference signal (SRS). When the parameter beamCorrespondenceWithoutUL-BeamSweeping is configured to 1, n may be the time slot in which the PDSCH carrying the MAC CE is received in the serving cell.

[0283] In some embodiments, after the terminal receives the indication information, the TCI state applied before the indication information (ie, the old TCI state) may continue to be applied before time t, where t satisfies:

[0284] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, is a constant.

[0285] Optionally, applying the old TCI state includes, for example: receiving a PDSCH or PDCCH with the old TCI state, or sending a PUSCH or PUCCH with the old TCI state.

[0286] In step S2104, the terminal 101 communicates with the network device 102 based on the activated TCI state.

[0287] Optionally, the activated TCI state is the aforementioned target TCI state.

[0288] Optionally, data communication is performed based on the TCI state, i.e., the aforementioned application TCI state.

[0289] In some embodiments, after the network device 102 indicates the activated TCI state through indication information, the terminal 101 can apply the activated TCI state after completing the TCI state activation within the corresponding activation delay time.

[0290] Optionally, the terminal behavior in the application opportunity includes one of the following:

[0291] Receive PDCCH or PDSCH according to the activated TCI state;

[0292] According to the activated TCI state, PUSCH is sent.

[0293] Optionally, for the target TCI state, the terminal capabilities are different and may have different starting points for receiving the PDCCH or PDSCH.

[0294] Optionally, the above terminal behavior can refer to the description of the relevant embodiment in step S2103, which will not be repeated here.

[0295] In some embodiments, the multiple TRPs include a first TRP and a second TRP, and step S2104 includes: during the time in the first time period except the second time period, the terminal 101 communicates data with the first TRP according to the activated TCI state.

[0296] The first period is the period from the completion of TCI state activation of the first TRP to the completion of TCI state activation of the second TRP, and the second period is the period during which RS appears during the TCI state activation process of the second TRP;

[0297] Among them, the terminal supports the ability to apply the corresponding TCI state after the TCI state activation of any TRP in multiple TRPs is completed.

[0298] Optionally, referring to FIG. 2 b or FIG. 2 c , the first time period may be T2 to T3 .

[0299] Optionally, in combination with the description of the foregoing embodiments, the TCI state activation process of the second TRP may include SSB-based time-frequency tracking, L1-RSRP measurement, or PL-RS-based path loss measurement; thus, the RS used in the TCI state activation process of the second TRP includes but is not limited to SSB or channel state information reference signal (CSI-RS) for tracking or measurement.

[0300] Optionally, during the time period T2 to T3, if there is a time domain conflict with the RS, the terminal 101 does not expect to be scheduled by the network device 102.

[0301] In some embodiments, the second period includes one of the following:

[0302] The time domain unit where the RS used for the TCI state activation process of the second TRP is located, where the round-trip-delay (RTD) is less than or equal to the cyclic prefix (CP), and the RTD is the delay between the RS used for the TCI state activation of the first TRP and the RS used for the TCI state activation of the second TRP;

[0303] A time domain unit and a time domain unit before or after the time domain unit, wherein the RTD is greater than the CP.

[0304] Optionally, the time domain unit may be a time slot, a symbol, a millisecond, etc.

[0305] Optionally, taking a symbol as the time domain unit, if RTD ≤ CP, the second time period includes an orthogonal frequency division multiplexing (OFDM) symbol where the RS is located. For example, during the time period T2 to T3, the terminal 101 does not expect to be scheduled on an OFDM symbol of an SSB used for time-frequency tracking or L1-RSRP measurement, or an OFDM symbol of a PL-RS used for path loss calculation.

[0306] Optionally, taking a symbol as the time domain unit, if RTD>CP, the second time period includes the OFDM symbol where the RS is located and one symbol before and after the symbol. For example, during the time period T2 to T3, the terminal 101 does not expect to be scheduled at the following locations: an OFDM symbol of an SSB used for time-frequency tracking or L1-RSRP measurement or a PL-RS used for path loss calculation, and an OFDM symbol before or one before the OFDM symbol.

[0307] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", and "field" can be used interchangeably.

[0308] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0309] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0310] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0311] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0312] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0313] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0314] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0315] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0316] The method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2104, such as the method includes steps S2102 to S2103.

[0317] In some embodiments, at least one of steps S2101 and S2104 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0318] In some embodiments, the order of step S2101 and step S2102 can be swapped or performed simultaneously.

[0319] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 a .

[0320] FIG3a is a schematic diagram of a method for transmitting indication information according to an embodiment of the present disclosure. As shown in FIG3a, an embodiment of the present disclosure relates to a method for transmitting indication information, which is executed by terminal 101 and includes:

[0321] Step S3101: Send capability information.

[0322] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2a, which will not be repeated here.

[0323] In some embodiments, the terminal 101 sends capability information to the network device 102, but is not limited thereto and the capability information may also be sent to other entities.

[0324] Step S3102, obtain instruction information.

[0325] In some embodiments, the optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2a, which will not be repeated here.

[0326] In some embodiments, the terminal 101 may obtain the indication information from the network device 102, but is not limited thereto and may also obtain the indication information from other entities.

[0327] Step S3103: Determine the application timing of the activated TCI state according to the terminal capability.

[0328] In some embodiments, the optional implementation of step S3103 can refer to the optional implementation of step S2103 in Figure 2a, which will not be repeated here.

[0329] Step S3104: Communication based on the activated TCI state.

[0330] In some embodiments, the optional implementation of step S3104 can refer to the optional implementation of step S2104 in Figure 2a, which will not be repeated here.

[0331] The method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3104, such as the method includes steps S3102 to S3103.

[0332] In some embodiments, at least one of steps S3101 and S3104 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0333] In some embodiments, the order of step S3101 and step S3102 can be swapped or performed simultaneously.

[0334] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 a .

[0335] FIG3b is a schematic diagram of a method for transmitting indication information according to an embodiment of the present disclosure. As shown in FIG3b , an embodiment of the present disclosure relates to a method for transmitting indication information, which is executed by terminal 101 and includes:

[0336] Step S3201: Send capability information.

[0337] In some embodiments, the optional implementation of step S3201 can refer to the optional implementation of step S2101 in Figure 2a, which will not be repeated here.

[0338] Step S3202, obtain instruction information.

[0339] In some embodiments, the optional implementation of step S3202 can refer to the optional implementation of step S2202 in Figure 2a, which will not be repeated here.

[0340] Step S3203: Determine the application timing of the activated TCI state according to the terminal capability.

[0341] In some embodiments, the optional implementation of step S3203 can refer to the optional implementation of step S2103 in Figure 2a, which will not be repeated here.

[0342] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 b .

[0343] FIG3c is a schematic diagram of a method for transmitting indication information according to an embodiment of the present disclosure. As shown in FIG3c, an embodiment of the present disclosure relates to a method for transmitting indication information, which is executed by terminal 101 and includes:

[0344] Step S3301: Receive instruction information sent by the network device 102.

[0345] In some embodiments, the optional implementation of step S3301 can refer to the optional implementation of step S2202 in Figure 2a, which will not be repeated here.

[0346] The network device 102 includes multiple TRPs, and the indication information is used to indicate the TCI state of activating at least one TRP.

[0347] Step S3302: Determine the application timing of the activated TCI state according to the terminal capability.

[0348] In some embodiments, the optional implementation of step S3302 can refer to the optional implementation of step S2103 in Figure 2a, which will not be repeated here.

[0349] In some embodiments, step S3302 may include one of the following:

[0350] Determining, based on the activation delay corresponding to each TRP in at least one TRP, an application timing of the TCI state of the corresponding TRP, wherein the terminal supports the ability to perform data communication according to the corresponding TCI state after the TCI state of any TRP in the multiple TRPs is activated; or

[0351] Determine the application timing of the TCI state of at least one TRP based on the maximum value of the activation delay corresponding to at least one TRP, wherein the terminal does not support the ability to perform data communication based on the corresponding TCI state after the TCI state of any TRP in multiple TRPs is activated.

[0352] In some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information and the processing time of the downlink reference signal RS, wherein the TCI state is a downlink DL TCI state of a known type.

[0353] Optionally, the activation delay T satisfies:

[0354] Time slot length;

[0355] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T first-SSB Indicates the time between receiving the indication information and sending the first downlink RS by any TRP, T SSB-proc is the downlink RS processing time, with TO k is a constant.

[0356] In some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS and the beam measurement time, wherein the TCI state is a DL TCI state of unknown type.

[0357] Optionally, the activation delay T satisfies:

[0358] Time slot length;

[0359] Where n represents the time when the instruction information is received, T HARQIndicates the time between the indication information and the corresponding confirmation feedback information, T L1-RSRP Indicates the time of the layer 1 reference signal received power L1-RSRP measurement in the beam measurement, T first-SSB Indicates the time between receiving the indication information and sending the first downlink RS by any TRP, T SSB-proc is the downlink RS processing time, With TOu k is a constant.

[0360] In some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS and the uplink path loss measurement time, wherein the TCI state is an uplink UL TCI state of a known type.

[0361] Optionally, the activation delay T satisfies:

[0362] Time slot length;

[0363] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T first-target-PL-RS Indicates the time between receiving the indication information and the first downlink RS used for uplink path loss measurement, T target-PL-RS Indicates the downlink RS period, and NM are constants.

[0364] In some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS, the uplink path loss measurement time and the beam measurement time, wherein the TCI state is an unknown type of UL TCI state.

[0365] Optionally, the activation delay T satisfies:

[0366] Time slot length;

[0367] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T L1-RSRP Indicates the time of L1-RSRP measurement in beam measurement, T first-target-PL-RS Indicates the time between receiving the indication information and the first downlink RS used for uplink path loss measurement, T target-PL-RS Indicates the downlink RS period, is a constant.

[0368] In some embodiments, after the terminal receives the indication information, the TCI state applied before the indication information can continue to be applied before time t, where t satisfies:

[0369] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, is a constant.

[0370] In some embodiments, the plurality of TRPs include a first TRP and a second TRP, the method further comprising:

[0371] During the first period except the second period, the terminal communicates data with the first TRP according to the activated TCI state, wherein the first period is the period from the completion of the TCI state activation of the first TRP to the completion of the TCI state activation of the second TRP, and the second period is the period during which the RS appears during the TCI state activation process of the second TRP;

[0372] Among them, the terminal supports the ability to perform data communication according to the corresponding TCI state after the TCI state of any TRP among multiple TRPs is activated.

[0373] Optionally, the second period includes one of the following:

[0374] The time domain unit where the RS used for the TCI state activation process of the second TRP is located, wherein the delay RTD is less than or equal to the cyclic prefix CP, and RTD is the delay between the RS used for the TCI state activation of the first TRP and the RS used for the TCI state activation of the second TRP;

[0375] A time domain unit and a time domain unit before or after the time domain unit, wherein the RTD is greater than the CP.

[0376] In some embodiments, the terminal behavior in the application opportunity includes one of the following:

[0377] Receive the physical downlink control channel (PDCCH) or the physical downlink shared channel (PDSCH) according to the activated TCI state;

[0378] According to the activated TCI state, the physical uplink shared channel PUSCH is sent.

[0379] In some embodiments, the method further includes: the terminal sending capability information to the network device, where the capability information is used to indicate the terminal capability.

[0380] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3c.

[0381] FIG4a is a schematic diagram of a method for transmitting indication information according to an embodiment of the present disclosure. As shown in FIG4a, an embodiment of the present disclosure relates to a method for transmitting indication information, which is performed by a network device 102 and includes:

[0382] Step S4101, obtaining capability information.

[0383] In some embodiments, the optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2a, which will not be repeated here.

[0384] In some embodiments, the network device 102 may obtain capability information from the terminal 101, but is not limited thereto and may also obtain capability information from other entities.

[0385] Step S4102, sending instruction information.

[0386] In some embodiments, the optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2a, which will not be repeated here.

[0387] In some embodiments, the network device 102 may send indication information to the terminal 101, but is not limited thereto and may also send indication information to other entities.

[0388] Step S4103: Determine the application timing of the activated TCI state according to the terminal capability.

[0389] In some embodiments, the optional implementation of step S4103 can refer to the optional implementation of step S2103 in FIG. 2 a , which will not be described in detail here.

[0390] Step S4104: Communication based on the activated TCI state.

[0391] In some embodiments, the optional implementation of step S4104 can refer to the optional implementation of step S2104 in Figure 2a, which will not be repeated here.

[0392] The method involved in the embodiment of the present disclosure may include at least one of steps S4101 to S4104, for example, the method includes steps S4102 to S4103.

[0393] In some embodiments, at least one of steps S4101 and S4104 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0394] In some embodiments, the order of step S4101 and step S4102 can be swapped or performed simultaneously.

[0395] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 a .

[0396] FIG4b is a schematic diagram of a method for transmitting indication information according to an embodiment of the present disclosure. As shown in FIG4b , an embodiment of the present disclosure relates to a method for transmitting indication information, which is performed by a network device 102 and includes:

[0397] Step S4201, obtaining capability information.

[0398] In some embodiments, the optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2a, which will not be repeated here.

[0399] Step S4202, sending instruction information.

[0400] In some embodiments, the optional implementation of step S4202 can refer to the optional implementation of step S2102 in Figure 2a, which will not be repeated here.

[0401] Step S4203: Determine the application timing of the activated TCI state according to the terminal capability.

[0402] In some embodiments, the optional implementation of step S4203 can refer to the optional implementation of step S2103 in Figure 2a, which will not be repeated here.

[0403] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 b .

[0404] FIG4c is a schematic diagram of a method for transmitting indication information according to an embodiment of the present disclosure. As shown in FIG4c, an embodiment of the present disclosure relates to a method for transmitting indication information, which is performed by the network device 102 and includes:

[0405] Step S4301: Send instruction information to terminal 101.

[0406] In some embodiments, the optional implementation of step S4301 can refer to the optional implementation of step S2202 in Figure 2a, which will not be repeated here.

[0407] The network device includes multiple TRPs, and the indication information is used to indicate the TCI state of activating at least one TRP.

[0408] Step S4302: Determine the application timing of the activated TCI state according to the terminal capability.

[0409] In some embodiments, the optional implementation of step S4302 can refer to the optional implementation of step S2103 in Figure 2a, which will not be repeated here.

[0410] In some embodiments, step S4302 may include one of the following:

[0411] Determining, based on the activation delay corresponding to each TRP in at least one TRP, an application timing of the TCI state of the corresponding TRP, wherein the terminal supports the ability to perform data communication according to the corresponding TCI state after the TCI state of any TRP in the multiple TRPs is activated; or

[0412] Determine the application timing of the TCI state of at least one TRP based on the maximum value of the activation delay corresponding to at least one TRP, wherein the terminal does not support the ability to perform data communication state according to the corresponding TCI after the TCI state activation of any TRP in multiple TRPs is completed.

[0413] In some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information and the processing time of the downlink RS, wherein the TCI state is a downlink DL TCI state of a known type.

[0414] Optionally, the activation delay T satisfies:

[0415] Time slot length;

[0416] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T first-SSB Indicates the time between receiving the indication information and sending the first downlink RS by any TRP, T SSB-proc is the downlink RS processing time, with TO k is a constant.

[0417] In some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS and the beam measurement time, wherein the TCI state is a DL TCI state of unknown type.

[0418] Optionally, the activation delay T satisfies:

[0419] Time slot length;

[0420] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, TL1-RSRP Indicates the time of the layer 1 reference signal received power L1-RSRP measurement in the beam measurement, T first-SSB Indicates the time between receiving the indication information and sending the first downlink RS by any TRP, T SSB-proc is the downlink RS processing time, with TO uk is a constant.

[0421] In some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS and the uplink path loss measurement time, wherein the TCI state is an uplink UL TCI state of a known type.

[0422] Optionally, the activation delay T satisfies:

[0423] Time slot length;

[0424] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T first-target-PL-RS Indicates the time between receiving the indication information and the first downlink RS used for uplink path loss measurement, T target-PL-RS Indicates the downlink RS period, and NM are constants.

[0425] In some embodiments, the activation delay corresponding to any TRP in at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS, the uplink path loss measurement time and the beam measurement time, wherein the TCI state is an unknown type of UL TCI state.

[0426] Optionally, the activation delay T satisfies:

[0427] Time slot length;

[0428] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T L1-RSRP Indicates the time of L1-RSRP measurement in beam measurement, T first-target-PL-RS Indicates the time between receiving the indication information and the first downlink RS used for uplink path loss measurement, T target-PL-RS Indicates the downlink RS period, is a constant.

[0429] In some embodiments, after the terminal receives the indication information, the TCI state applied before the indication information can continue to be applied before time t, where t satisfies:

[0430] Where n represents the time when the instruction information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, is a constant.

[0431] In some embodiments, the plurality of TRPs include a first TRP and a second TRP, and the method further includes:

[0432] During the first period except the second period, the first TRP communicates data with the terminal according to the activated TCI state, wherein the first period is the period from the completion of the TCI state activation of the first TRP to the completion of the TCI state activation of the second TRP, and the second period is the period during which the RS appears during the TCI state activation process of the second TRP;

[0433] Among them, the terminal supports the ability to perform data communication according to the corresponding TCI state after the TCI state of any TRP among multiple TRPs is activated.

[0434] Optionally, the second period includes one of the following:

[0435] The time domain unit where the RS used for the TCI state activation process of the second TRP is located, wherein the delay RTD is less than or equal to the cyclic prefix CP, and RTD is the delay between the RS used for the TCI state activation of the first TRP and the RS used for the TCI state activation of the second TRP;

[0436] A time domain unit and a time domain unit before or after the time domain unit, wherein the RTD is greater than the CP.

[0437] In some embodiments, the behavior of the network device in the application opportunity includes one of the following:

[0438] Send PDCCH or PDSCH according to the activated TCI status;

[0439] According to the activated TCI state, PUSCH is received.

[0440] In some embodiments, the method further includes: the network device receiving capability information sent by the terminal, where the capability information is used to indicate the terminal capability.

[0441] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4c.

[0442] In the method disclosed herein, UE capabilities and UE behaviors are defined in the unified TCI state activation in the mTRP scenario. To facilitate understanding of the embodiments of the present disclosure, some embodiments are listed below:

[0443] Example 1:

[0444] Single downlink control information (sDCI)

[0445] sDCI means activating multiple TCI states using one message or signaling. For example, for unified TCI activation in mTRP, two TCI states are activated in one MAC CE.

[0446] In Example 1, the following known conditions are defined for each TCI state, which may include the following examples:

[0447] Example 1:

[0448] The DL TCI status is known if the following conditions are met:

[0449] (1) Within a defined period of time, the following conditions must be met:

[0450] A DL TCI state activation or switching command (such as an indication message) is received within 1280ms after the last transmission of the RS resource used for beam measurement;

[0451] Before the indication information, the terminal 101 has sent at least one L1-RSRP report for the target DL TCI state;

[0452] During DL TCI state activation or switching, the target DL TCI state remains detectable;

[0453] During DL TCI state activation or switching, the SSB associated with the DL TCI state remains detectable; wherein the SNR corresponding to the DL TCI state is ≥ -3dB, and the SSB may be associated with the PCI of the serving cell or with a PCI different from the serving cell PCI;

[0454] The starting point of the defined time period is: the time of the last transmission of the RS resource for the L1-RSRP measurement report of the target DL TCI state, and the end of the time period is: the time when the activation of the DL TCI state is completed, wherein the RS resource used for L1-RSRP measurement is the RS of the target DL TCI state, or the RS that is QCLed with the target DL TCI state.

[0455] (2) If (1) is not satisfied, the DL TCI status is unknown.

[0456] Example 2:

[0457] The UL TCI status is known if the following conditions are met:

[0458] (1) Within a defined period of time, the following conditions must be met:

[0459] A UL TCI state activation or switching command (such as an indication message) is received within 1280 ms after the last transmission of the RS resource used for beam measurement;

[0460] Before the indication information, the terminal 101 has sent at least one L1-RSRP report for the target UL TCI state;

[0461] During UL TCI state activation or switching, the RS configured in the target UL TCI state remains detectable; wherein the SNR corresponding to the RS configured in the target UL TCI state is ≥ -3dB;

[0462] During UL TCI state activation or switching, the UL TCI state remains detectable;

[0463] During UL TCI state activation or handover, the SSB associated with the UL TCI state remains detectable, where the SNR corresponding to the UL TCI state is ≥ -3dB. The SSB may be associated with the PCI of the serving cell or with a PCI different from the serving cell PCI.

[0464] The starting point of the defined time period is: the time of the last transmission of the RS resource for the L1-RSRP measurement report of the target UL TCI state, and the end of the time period is: the time when the activation of the UL TCI state is completed, wherein the RS resource used for L1-RSRP measurement is the RS of the target DL TCI state, or the RS that is QCLed with the target DL TCI state.

[0465] (2) If (1) is not satisfied, the UL TCI status is unknown.

[0466] Example 3:

[0467] According to the above-mentioned known types of conditions, the TCI state pairs configured by the network device 102 may have the following different combinations:

[0468] (1) Known TCI status vs. known TCI status;

[0469] (2) known TCI status and unknown TCI status;

[0470] (3) unknown TCI status vs. unknown TCI status;

[0471] Example 4:

[0472] In the mTRP scenario, the activation completion time of the TCI states corresponding to the two TRPs will be different. For some UEs, the UE can only be scheduled with PDSCH, PDCCH or PUSCH with the new TCI state after the UE has completed the activation of both TCI states, as shown in Figure 2c.

[0473] The UE receives the MAC CE command at T0. The TCI state activation for TRP 1 is completed at T2, and the TCI state activation for TRP 2 is completed at T3. In this example, the UE cannot be scheduled using PDSCH 1 with the new TCI state for TRP 1 or PDSCH 2 with the new TCI state for TRP 2 until T3.

[0474] Example 5:

[0475] For some other UEs with more advanced implementation capabilities, if one of the TCI state activations has been completed, the UE may be scheduled with a PDSCH, PDCCH or PUSCH with a new TCI state, as shown in FIG2 b .

[0476] Referring to Figure 2c, in this example, activation of the TCI state for TRP 1 is completed at T2, and activation of the TCI state for TRP 2 is completed at T3. In this example, PDSCH 1 with the new TCI state for TRP 1 can be used to schedule the UE from T2, allowing the UE to receive data earlier and improving system capacity.

[0477] Optionally, in combination with Example 5, a UE capability for delaying TCI state activation in mTRP is introduced.

[0478] Optionally, for a UE without advanced capabilities, the total activation delay of the two TCI states will be the maximum delay between the activation delays of the two TCI states, as shown in Example 4.

[0479] Example 6:

[0480] Taking the activation of the known TCI state of combination (1) TRP1 and the known DL TCI state of TRP2 as an example, if the UE receives a PDSCH carrying a MAC-CE activation command in time slot n, on both TRPs, the UE should be able to switch TCI states in the first time slot after the following time slots and receive UE-dedicated PDCCHs or PDSCHs from both TRPs with the target TCI state:

[0481] The UE is able to receive UE-specific PDCCH or PDSCH with the old TCI state until the time slot

[0482] Among them, T HARQ Indicates the time between DL data and the corresponding confirmation feedback information;

[0483] T first-SSB1 Indicates the time from when terminal 101 decodes the MAC CE to when TRP1 sends the first SSB, where the SSB is QCL Type A (Type A) or QCL Type C of the target TCI state;

[0484] T first-SSB2 Indicates the time from when terminal 101 decodes the MAC CE to when TRP2 sends the first SSB, where the SSB is QCL Type A (Type A) or QCL Type C of the target TCI state;

[0485] T SSB-proc =2ms;

[0486] If the target TCI state is not in the activated TCI state list corresponding to the downlink channel, TO k =1, otherwise, TO k =0.

[0487] Example 7:

[0488] Taking the activation of combination (2) TRP1 with a known TCI state and TRP2 with an unknown DL TCI state as an example, if the UE receives a PDSCH carrying a MAC-CE activation command in time slot n, on both TRPs, the UE should be able to switch TCI states in the first time slot after the following time slots and receive UE-specific PDCCHs or PDSCHs from both TRPs with the target TCI state:

[0489] The UE is able to receive UE-specific PDCCH or PDSCH with the old TCI state until the time slot

[0490] Among them, T HARQ Indicates the time between DL data and the corresponding confirmation feedback information;

[0491] T first-SSB1 Indicates the time from when terminal 101 decodes the MAC CE to when TRP1 sends the first SSB, where the SSB is QCL Type A (Type A) or QCL Type C of the target TCI state;

[0492] T first-SSB2Indicates the time from when terminal 101 decodes the MAC CE to when TRP2 sends the first SSB, where the SSB is QCL Type A (Type A) or QCL Type C of the target TCI state;

[0493] T L1-RSRP2 It is the time of beam measurement on TRP2 in FR2;

[0494] T SSB-proc =2ms;

[0495] If the target TCI state is not in the activated TCI state list corresponding to the downlink channel, TO k =1, otherwise, TO k =0.

[0496] Example 8:

[0497] Taking the combination (3) of known UL TCI state of TRP1 and unknown UL TCI state of TRP2 as an example, for independent UL TCI state switching or joint TCI state switching of PUCCH or PUSCH, or semi-persistent, aperiodic or periodic SRS, when the parameter beamCorrespondenceWithoutUL-BeamSweeping is configured to 1, if a PDSCH carrying a MAC CE is received in time slot n on the serving cell, the UE may send uplink signals with the target TCI state in the following time slots:

[0498] Example 9:

[0499] For UEs with advanced capabilities, the delay between two TCI state activations may be determined by each TCI state activation itself, see Examples 10 to 12.

[0500] Example 10:

[0501] Taking the activation of the known TCI state of combination (1) TRP1 and the known DL TCI state of TRP2 as an example, the UE receives a PDSCH carrying a MAC-CE activation command in time slot n. On each TRP, the UE should be able to switch TCI state in the first time slot after the following time slots and receive UE-specific PDCCHs or PDSCHs from each TRP with the target TCI state:

[0502] The UE is able to receive UE-specific PDCCH or PDSCH with the old TCI state until the time slot

[0503] Among them, THARQ Indicates the time between DL data and the corresponding confirmation feedback information;

[0504] T first-SSB Indicates the time from the time when the terminal 101 decodes the MAC CE to the time when the first SSB is transmitted, where the SSB is QCL Type A (Type A) or QCL Type C in the target TCI state;

[0505] T SSB-proc =2ms;

[0506] If the target TCI state is not in the activated TCI state list corresponding to the downlink channel, TO k =1, otherwise, TO k =0.

[0507] Example 11:

[0508] Taking the activation of combination (2) TRP1's known TCI state and TRP2's unknown DL TCI state as an example, if the UE receives a PDSCH carrying a MAC-CE activation command in time slot n, then

[0509] For TRP1, the UE can undergo TCI state switching and receive UE-specific PDCCHs or PDSCHs from TRP1 with the target TCI state in the first time slot after the following time slots: The UE is able to receive UE-specific PDCCH or PDSCH with the old TCI state until the time slot

[0510] For TRP2: The UE can undergo TCI state switching and receive UE-specific PDCCHs or PDSCHs from TRP1 with the target TCI state in the first time slot after the following time slots: The UE is able to receive UE-specific PDCCH or PDSCH with the old TCI state until the time slot

[0511] Among them, T HARQ Indicates the time between DL data and the corresponding confirmation feedback information;

[0512] T first-SSB Indicates the time from when terminal 101 decodes the MAC CE to when TRP1 sends the first SSB, where the SSB is QCL Type A (Type A) or QCL Type C of the target TCI state;

[0513] T L1-RSRP It is the time of beam measurement on TRP2 in FR2;

[0514] T SSB-proc =2ms;

[0515] If the target TCI state is not in the activated TCI state list corresponding to the downlink channel, TO k =1, otherwise, TO k =0.

[0516] Example 12:

[0517] Taking the combination (3) of the known UL TCI state of TRP1 and the unknown UL TCI state of TRP2 as an example, for independent UL TCI state switching or joint TCI state switching of PUCCH or PUSCH, or semi-persistent, aperiodic or periodic SRS, when the parameter beamCorrespondenceWithoutUL-BeamSweeping is configured to 1, a PDSCH carrying MAC CE is received in time slot n on the serving cell, then

[0518] For TRP1, the UE may send uplink signals with target TCI states in the following time slots:

[0519] For TRP2, the UE may send uplink signals with target TCI states in the following time slots:

[0520] Example 13:

[0521] Combined with the introduced UE capabilities, when a UE completes a TCI activation from TRP1, it can utilize the PDSCH from TRP1 to schedule the UE. However, since the UE will continue to perform TCI activation for TRP2 until T3, during T2-T3, the UE can perform SSB-based T / F tracking, L1-RSRP measurement, or PL-RS measurement of path loss. When overlapping with these RSs, the UE cannot be scheduled.

[0522] Optionally, before the UE completes two TCI activations, the following scheduling restrictions need to be met:

[0523] Before the UE completes activation of two TCI states, it is not expected to transmit PUCCH, PUSCH or SRS on the relevant OFDM symbols, or is not expected to receive PDCCH, PDSCH, CSI-RS for tracking or CSI-RS for CQI on the relevant OFDM symbols, where the relevant OFDM symbols are:

[0524] OFDM symbols of SSB for T / F tracking, L1-RSRP measurement, or PL-RS for path loss calculation, and one OFDM symbol before or after, where the UE supports RTD > CP;

[0525] OFDM symbols for SSB used for T / F tracking, L1-RSRP measurement, or PL-RS for path loss calculation, where the UE does not support RTD>CP.

[0526] Example 2:

[0527] Multiple indication information (mDCI)

[0528] mDCI means using multiple messages or signaling to activate multiple TCI states. For example, for unified TCI activation in mTRP, two MAC CEs will trigger the activation of two TCI states respectively.

[0529] Optionally, referring to embodiment 1, by utilizing advanced UE capabilities, when any TCI state activation is completed, the UE can receive the PDSCH with the new TCI state. Otherwise, the total TCI activation delay will be the maximum value between the two TCI state activations.

[0530] Optionally, UEs with advanced UE capabilities still require scheduling restrictions. For example:

[0531] Before the UE completes activation of two TCI states, it is not expected to transmit PUCCH, PUSCH or SRS on the relevant OFDM symbols, or is not expected to receive PDCCH, PDSCH, CSI-RS for tracking or CSI-RS for CQI on the relevant OFDM symbols, where the relevant OFDM symbols are:

[0532] OFDM symbols of SSB for T / F tracking, L1-RSRP measurement, or PL-RS for path loss calculation, and one OFDM symbol before or after, where the UE supports RTD > CP;

[0533] OFDM symbols for SSB used for T / F tracking, L1-RSRP measurement, or PL-RS for path loss calculation, where the UE does not support RTD>CP.

[0534] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0535] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0536] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0537] Figure 5a is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in Figure 5a, terminal 5100 may include at least one of a transceiver module 5101 and a processing module 5102. In some embodiments, transceiver module 5101 is configured to receive indication information sent by a network device, wherein the network device includes multiple Transmission Control Protocols (TRPs), and the indication information is configured to indicate activation of a Transmission Configuration Indicator (TCI) state for at least one TRP. Processing module 5102 is configured to determine the application timing of the activated TCI state based on the terminal's capabilities.

[0538] Optionally, the transceiver module 5101 is configured to execute at least one of the communication steps of sending and / or receiving performed by the terminal 101 in any of the above methods, which are not described in detail here. Optionally, the processing module 5102 is configured to execute at least one of the other steps performed by the terminal 101 in any of the above methods, which are not described in detail here.

[0539] Figure 5b is a schematic diagram of the terminal structure proposed in an embodiment of the present disclosure. As shown in Figure 5b, network device 5200 may include at least one of a transceiver module 5201 and a processing module 5202. In some embodiments, transceiver module 5201 is configured to send indication information to the terminal, where the network device includes multiple Transmission Control Providers (TRPs), and the indication information is configured to indicate the activation of a TCI state for at least one TRP. Processing module 5202 is configured to determine the application timing of the activated TCI state based on the terminal's capabilities.

[0540] Optionally, the transceiver module 5201 is configured to execute at least one of the communication steps of sending and / or receiving performed by the network device 102 in any of the above methods, which are not described in detail here. Optionally, the processing module 5202 is configured to execute at least one of the other steps performed by the network device 102 in any of the above methods, which are not described in detail here.

[0541] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0542] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0543] Figure 6a is a schematic diagram of the structure of a communication device 6100 proposed in an embodiment of the present disclosure. Communication device 6100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal implementing any of the above methods. Communication device 6100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0544] As shown in Figure 6a, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to perform any of the above methods. Optionally, one or more processors 6101 are used to call instructions to enable the communication device 6100 to perform any of the above methods.

[0545] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method, and the processor 6101 performs at least one of the other steps. In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0546] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Alternatively, all or part of the memories 6103 may be located outside the communication device 6100. In alternative embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memory 6102 and may be configured to receive data from the memory 6102 or other devices, or to send data to the memory 6102 or other devices. For example, the interface circuits 6104 may read data stored in the memory 6102 and send the data to the processor 6101.

[0547] The communication device 6100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0548] FIG6b is a schematic diagram of the structure of a chip 6200 according to an embodiment of the present disclosure. If the communication device 6100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 6200 shown in FIG6b , but the present disclosure is not limited thereto.

[0549] The chip 6200 includes one or more processors 6201. The chip 6200 is configured to execute any of the above methods.

[0550] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data. Alternatively, all or part of memory 6203 may be located external to chip 6200. Optionally, interface circuit 6202 is connected to memory 6203 and may be used to receive data from memory 6203 or other devices, or may be used to send data to memory 6203 or other devices. For example, interface circuit 6202 may read data stored in memory 6203 and send the data to processor 6201.

[0551] In some embodiments, the interface circuit 6202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 6202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 6202 performs data exchange between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps.

[0552] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0553] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 6100, the communication device 6100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0554] The present disclosure also provides a program product, which, when executed by the communication device 6100, enables the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0555] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods. Industrial Applicability

[0556] Based on the indication information sent by the network device, the terminal obtains the TCI states to be activated in the multi-TRP scenario, so that it can activate those TCI states. For each activated TCI state, the terminal adapts its own capabilities to determine when to apply the TCI state. This allows the terminal to apply the corresponding TCI state at the appropriate time if the activation completion time of multiple TCI states is different.

Claims

1. A method for transmitting indication information, the method comprising: The terminal receives indication information sent by a network device, wherein the network device includes a plurality of transmission reception points TRPs, and the indication information is used to indicate activation of a transmission configuration indication TCI state of at least one TRP; The application timing of the activated TCI state is determined according to the terminal capabilities.

2. The method of claim 1, wherein: The determining, according to the terminal capability, the application timing of the activated TCI state includes: Determine the application timing of the TCI state of the corresponding TRP according to the activation delay corresponding to each TRP in the at least one TRP, wherein the terminal supports the ability to perform data communication according to the corresponding TCI state after the TCI state of any TRP in the multiple TRPs is activated; or Determine the application timing of the TCI state of the at least one TRP based on the maximum value of the activation delay time corresponding to the at least one TRP, wherein the terminal does not support the ability to perform data communication based on the corresponding TCI state after the TCI state of any TRP among the multiple TRPs is activated.

3. The method of claim 2, wherein: The activation delay corresponding to any TRP of the at least one TRP is determined according to the processing time of the indication information and the processing time of the downlink reference signal RS, wherein the TCI state is a downlink DL TCI state of a known type.

4. The method of claim 3, wherein: The activation delay time T satisfies: Time slot length; Wherein, n represents the time when the indication information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T first-SSB Indicates the time between receiving the indication information and sending the first downlink RS by any TRP, T SSB-proc is the downlink RS processing time, with TO k is a constant.

5. The method of claim 2, wherein: The activation delay corresponding to any TRP among the at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS and the beam measurement time, wherein the TCI state is a DL TCI state of an unknown type.

6. The method of claim 5, wherein: The activation delay time T satisfies: Time slot length; Wherein, n represents the time when the indication information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T L1-RSRP Indicates the time of measuring the layer 1 reference signal received power L1-RSRP in beam measurement, T first-SSB Indicates the time between receiving the indication information and sending the first downlink RS by any TRP, T SSB-proc is the downlink RS processing time, With TOu k is a constant.

7. The method of claim 2, wherein: The activation delay corresponding to any TRP among the at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS and the uplink path loss measurement time, wherein the TCI state is an uplink UL TCI state of a known type.

8. The method of claim 7, wherein: The activation delay time T satisfies: Time slot length; Wherein, n represents the time when the indication information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T first-target-PL-RS Indicates the time between receiving the indication information and the first downlink RS used for uplink path loss measurement, T target-PL-RS represents the period of the downlink RS, and NM are constants.

9. The method of claim 2, wherein: The activation delay corresponding to any TRP among the at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS, the uplink path loss measurement time and the beam measurement time, wherein the TCI state is an unknown type of UL TCI state.

10. The method of claim 9, wherein: The activation delay time T satisfies: Time slot length; Wherein, n represents the time when the indication information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T L1-RSRP Indicates the time of L1-RSRP measurement in beam measurement, T first-target-PL-RS Indicates the time between receiving the indication information and the first downlink RS used for uplink path loss measurement, T target-PL-RS represents the period of the downlink RS, is a constant.

11. The method according to any one of claims 2 to 10, wherein: After the terminal receives the indication information, the TCI state applied before the indication information continues to be applied before time t, and the t satisfies: Wherein, n represents the time when the indication information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, is a constant.

12. The method according to any one of claims 2 to 10, wherein: The plurality of TRPs include a first TRP and a second TRP, and the method further includes: During the time except the second time period in the first time period, the terminal communicates data with the first TRP according to the activated TCI state, wherein the first time period is a time period from when the TCI state activation of the first TRP is completed to when the TCI state activation of the second TRP is completed, and the second time period is a time period during which the RS appears during the TCI state activation process of the second TRP; Among them, the terminal supports the ability to perform data communication according to the corresponding TCI state after the TCI state activation of any TRP among multiple TRPs is completed.

13. The method of claim 12, wherein: The second period includes one of the following: The time domain unit where the RS in the TCI state activation process for the second TRP is located, wherein the delay RTD is less than or equal to the cyclic prefix CP, and the RTD is the delay between the RS for the TCI state activation of the first TRP and the RS for the TCI state activation of the second TRP; The time domain unit and a time domain unit before or after the time domain unit, wherein the RTD is greater than the CP.

14. The method according to any one of claims 1 to 10, wherein: The terminal behavior in the application opportunity includes the following: Receive the physical downlink control channel PDCCH or the physical downlink shared channel PDSCH according to the activated TCI state; According to the activated TCI state, the physical uplink shared channel PUSCH is sent.

15. A method for transmitting indication information, the method comprising: The network device sends indication information to the terminal, wherein the network device includes a plurality of TRPs, and the indication information is used to indicate activation of a TCI state of at least one TRP; The application timing of the activated TCI state is determined according to the terminal capabilities.

16. The method of claim 15, wherein: The determining, according to the terminal capability, the application timing of the activated TCI state includes: Determine the application timing of the TCI state of the corresponding TRP according to the activation delay corresponding to each TRP in the at least one TRP, wherein the terminal supports the ability to perform data communication according to the corresponding TCI state after the TCI state of any TRP in the multiple TRPs is activated; or Determine the application timing of the TCI state of the at least one TRP based on the maximum value of the activation delay time corresponding to the at least one TRP, wherein the terminal does not support the ability to perform data communication based on the corresponding TCI state after the TCI state of any TRP among the multiple TRPs is activated.

17. The method of claim 16, wherein: The activation delay corresponding to any TRP of the at least one TRP is determined based on the processing time of the indication information and the processing time of the downlink RS, wherein the TCI state is a downlink DL TCI state of a known type.

18. The method of claim 17, wherein: The activation delay time T satisfies: Time slot length; Wherein, n represents the time when the indication information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T first-SSB Indicates the time between receiving the indication information and sending the first downlink RS by any TRP, T SSB-proc is the downlink RS processing time, with TO k is a constant.

19. The method of claim 16, wherein: The activation delay corresponding to any TRP among the at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS and the beam measurement time, wherein the TCI state is a DL TCI state of an unknown type.

20. The method of claim 19, wherein: The activation delay time T satisfies: Time slot length; Wherein, n represents the time when the indication information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T L1-RSRP Indicates the time of measuring the layer 1 reference signal received power L1-RSRP in beam measurement, T first-SSB Indicates the time between receiving the indication information and sending the first downlink RS by any TRP, T SSB-proc When the downlink RS is processed between, with TO uk is a constant.

21. The method of claim 16, wherein: The activation delay corresponding to any TRP among the at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS and the uplink path loss measurement time, wherein the TCI state is an uplink UL TCI state of a known type.

22. The method of claim 21, wherein: The activation delay time T satisfies: Time slot length; Wherein, n represents the time when the indication information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T first-target-PL-RS Indicates the time between receiving the indication information and the first downlink RS used for uplink path loss measurement, T target-PL-RS represents the period of the downlink RS, and NM are constants.

23. The method of claim 16, wherein: The activation delay corresponding to any TRP among the at least one TRP is determined based on the processing time of the indication information, the processing time of the downlink RS, the uplink path loss measurement time and the beam measurement time, wherein the TCI state is an unknown type of UL TCI state.

24. The method of claim 23, wherein: The activation delay time T satisfies: Time slot length; Wherein, n represents the time when the indication information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, T L1-RSRP Indicates the time of L1-RSRP measurement in beam measurement, T first-target-PL-RS Indicates the time between receiving the indication information and the first downlink RS used for uplink path loss measurement, T target-PL-RS represents the period of the downlink RS, is a constant.

25. The method according to any one of claims 16 to 24, wherein: After the terminal receives the indication information, the TCI state applied before the indication information continues to be applied before time t, and the t satisfies: Wherein, n represents the time when the indication information is received, T HARQ Indicates the time between the indication information and the corresponding confirmation feedback information, is a constant.

26. The method according to any one of claims 16 to 24, wherein: The plurality of TRPs include a first TRP and a second TRP, and the method further includes: During the time except the second time period in the first time period, the first TRP communicates data with the terminal according to the activated TCI state, wherein the first time period is the time period from when the TCI state activation of the first TRP is completed to when the TCI state activation of the second TRP is completed, and the second time period is the time period during which the RS appears during the TCI state activation process of the second TRP; Among them, the terminal supports the ability to perform data communication according to the corresponding TCI state after the TCI state activation of any TRP among multiple TRPs is completed.

27. The method of claim 26, wherein: The second period includes one of the following: The time domain unit where the RS in the TCI state activation process for the second TRP is located, wherein the delay RTD is less than or equal to the cyclic prefix CP, and the RTD is the delay between the RS for the TCI state activation of the first TRP and the RS for the TCI state activation of the second TRP; The time domain unit and a time domain unit before or after the time domain unit, wherein the RTD is greater than the CP.

28. The method according to any one of claims 15 to 24, wherein: The behavior of the network device in the application opportunity includes one of the following: Send the physical downlink control channel PDCCH or the physical downlink shared channel PDSCH according to the activated TCI state; According to the activated TCI state, the physical uplink shared channel PUSCH is received.

29. A terminal, comprising: A transceiver module, configured to receive indication information sent by a network device, wherein the network device includes a plurality of TRPs, and the indication information is used to indicate activation of a transmission configuration indication TCI state of at least one TRP; The processing module is used to determine the application timing of the activated TCI state according to the terminal capability.

30. A network device comprising: A transceiver module, configured to send indication information to a terminal, wherein the network device includes a plurality of TRPs, and the indication information is used to indicate a TCI state of activating at least one TRP; The processing module is used to determine the application timing of the activated TCI state according to the terminal capability.

31. A communication device, comprising: one or more processors; The communication device is used to execute the method according to any one of claims 1 to 14.

32. A communication device, comprising: one or more processors; The communication device is used to execute the method according to any one of claims 15 to 28.

33. A communication system, comprising a terminal and a network device, wherein: The terminal is configured to implement the method according to any one of claims 1 to 14; The network device is configured to implement the method according to any one of claims 15 to 28.

34. A storage medium storing instructions, wherein: When the instruction is executed on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 14 or any one of claims 15 to 28.

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