TCI state activation method, terminal, first TRP and second TRP

Abstract

The invention provides a transmission configuration indication (TCI) state activation method, a terminal, a first transmission receiving point (TRP) and a second TRP, and the method comprises the steps: receiving a first activation command sent by a first TRP; wherein the first TRP supports uplink transmission and downlink transmission; wherein the first activation command is used for activating a first uplink TCI state; a first uplink reference signal configured by the first activation command comes from the first TRP, and when a first known condition is satisfied, the first uplink TCI state is determined to be known; or a first uplink reference signal configured by the first activation command is from a second TRP, and when a second known condition is satisfied, determining that the state of the first uplink TCI is known; wherein the second TRP supports uplink transmission; and activating the known first uplink TCI state. According to the invention, the uplink TCI state can be activated in an asymmetric scene, the uplink transmission performance is improved, and the performance and availability of asymmetric deployment are improved.

Description

TCI state activation method, terminal, first TRP and second TRP TECHNICAL FIELD

[0001] The present disclosure relates to the field of communication, and in particular to a TCI state activation method, a terminal, a first TRP and a second TRP. BACKGROUND

[0002] Currently, multiple transmission and reception points (TRPs) are symmetrically deployed, that is, each TRP can be used for downlink (DL) transmission and uplink (UL).

[0003] SUMMARY

[0004] In order to improve the availability of asymmetric deployment in a multi-TRP scenario, the embodiments of the present disclosure provide a TCI state activation method, a terminal, a first TRP and a second TRP.

[0005] According to a first aspect of the embodiments of the present disclosure, a transmission configuration indication (TCI) state activation method is provided, the method is performed by a terminal, and the method comprises:

[0006] receiving a first activation command sent by a first transmission and reception point (TRP); wherein the first TRP supports uplink transmission and downlink transmission; wherein the first activation command is used to activate a first uplink TCI state;

[0007] the first uplink reference signal configured by the first activation command is from the first TRP, and satisfies a first known condition, and it is determined that the first uplink TCI state is known; or

[0008] the first uplink reference signal configured by the first activation command is from a second TRP, and satisfies a second known condition, and it is determined that the first uplink TCI state is known; wherein the second TRP supports uplink transmission;

[0009] activating the known first uplink TCI state.

[0010] According to a second aspect of the embodiments of the present disclosure, a transmission configuration indication (TCI) state activation method is provided, the method is performed by a first transmission and reception point (TRP), the first TRP supports uplink transmission and downlink transmission, and the method comprises:

[0011] sending a first activation command to a terminal; wherein the first activation command is used to activate a first uplink TCI state; wherein the first uplink reference signal configured by the first activation command is from the first TRP or a second TRP, and the second TRP supports uplink transmission.

[0012] According to a third aspect of embodiments of the present disclosure, a method for transmitting a transmission configuration indication (TCI) state is provided, the method is performed by a second transmission reception point (TRP), the second TRP supports uplink transmission, and the method comprises the following steps.

[0013] configuring a second uplink reference signal resource for the terminal; wherein the second uplink reference signal is used for uplink beam management;

[0014] receiving the second uplink reference signal sent by the terminal through different sending beams;

[0015] measuring the second uplink reference signal received by different receiving beams to determine a measurement result;

[0016] sending a second activation command to the terminal based on the measurement result; wherein the second activation command is used to activate a second uplink TCI state corresponding to the second TRP.

[0017] According to a fourth aspect of embodiments of the present disclosure, a terminal is provided, comprising:

[0018] a transceiver module configured to receive a first activation command sent by a first transmission reception point (TRP); wherein the first TRP supports uplink transmission and downlink transmission; wherein the first activation command is used to activate a first uplink TCI state;

[0019] a processing module configured to determine that the first uplink TCI state is known if a first uplink reference signal configured by the first activation command is from the first TRP and meets a first known condition; or

[0020] determine that the first uplink TCI state is known if a first uplink reference signal configured by the first activation command is from a second TRP and meets a second known condition; wherein the second TRP supports uplink transmission;

[0021] the processing module is further configured to activate the known first uplink TCI state.

[0022] According to a fifth aspect of embodiments of the present disclosure, a first transmission reception point (TRP) is provided, the first TRP supports uplink transmission and downlink transmission, and the first TRP comprises:

[0023] a transceiver module configured to send a first activation command to a terminal; wherein the first activation command is used to activate a first uplink TCI state; wherein a first uplink reference signal configured by the first activation command is from the first TRP or a second TRP, and the second TRP supports uplink transmission.

[0024] According to a sixth aspect of embodiments of the present disclosure, a second transmission and reception point, TRP, is provided, the second TRP supporting uplink transmission, the second TRP comprising:

[0025] a transceiver configured to configure the terminal with a second uplink reference signal resource; wherein the second uplink reference signal is used for uplink beam management;

[0026] the transceiver is further configured to receive the second uplink reference signal transmitted by the terminal through different transmission beams;

[0027] a processing module configured to measure the second uplink reference signal received by different reception beams, and determine a measurement result;

[0028] the transceiver is further configured to send a second activation command to the terminal based on the measurement result; wherein the second activation command is used to activate a second uplink TCI state corresponding to the second TRP.

[0029] According to a seventh aspect of embodiments of the present disclosure, a terminal is provided, comprising:

[0030] one or more processors;

[0031] wherein the processor is configured to perform the transmission configuration indication, TCI, state activation method of any one of the first aspect.

[0032] According to an eighth aspect of embodiments of the present disclosure, a transmission and reception point is provided, comprising:

[0033] one or more processors;

[0034] wherein the processor is configured to perform the transmission configuration indication, TCI, state activation method of any one of the second aspect or the third aspect.

[0035] According to a ninth aspect of embodiments of the present disclosure, a communication system is provided, comprising:

[0036] a terminal configured to implement the transmission configuration indication, TCI, state activation method of any one of the first aspect;

[0037] a first transmission and reception point, TRP, supporting uplink transmission and downlink transmission, the first TRP being configured to implement the transmission configuration indication, TCI, state activation method of the second aspect;

[0038] a second TRP supporting uplink transmission, the second TRP being configured to implement the transmission configuration indication, TCI, state activation method of the third aspect.

[0039] According to a tenth aspect of the embodiments of the present disclosure, a storage medium is provided, and the storage medium stores instructions, when the instructions are executed on an electronic device, the electronic device performs the transmission configuration indication (TCI) state activation method in any one of the first aspect, the second aspect or the third aspect.

[0040] According to an eleventh aspect of the embodiments of the present disclosure, a computer program product is provided, and the computer program product comprises a computer program, when the computer program is executed by a processor, the computer program is used to implement the transmission configuration indication (TCI) state activation method in any one of the first aspect, the second aspect or the third aspect.

[0041] In the embodiments of the present disclosure, the uplink TCI state can be activated in an asymmetric scenario, the uplink transmission performance is improved, and the performance and availability of the asymmetric deployment are improved.

[0042] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0043] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0044] FIG. 1 is one exemplary schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure.

[0045] FIG. 2A is one of the exemplary interaction schematic diagrams of the TCI state activation method according to an embodiment of the present disclosure.

[0046] FIG. 2B is another of the exemplary interaction schematic diagrams of the TCI state activation method according to an embodiment of the present disclosure.

[0047] FIG. 3A is one of the exemplary flow schematic diagrams of the TCI state activation method according to an embodiment of the present disclosure.

[0048] FIG. 3B is another of the exemplary flow schematic diagrams of the TCI state activation method according to an embodiment of the present disclosure.

[0049] FIG. 3C is a third of the exemplary flow schematic diagrams of the TCI state activation method according to an embodiment of the present disclosure.

[0050] FIG. 3D is a fourth of the exemplary flow schematic diagrams of the TCI state activation method according to an embodiment of the present disclosure.

[0051] FIG. 4A is a third of the exemplary interaction schematic diagrams of the TCI state activation according to an embodiment of the present disclosure.

[0052] FIG. 4B is one example flowchart of TCI state activation according to embodiments of the present disclosure.

[0053] FIG. 5A is one example block diagram of a terminal according to embodiments of the present disclosure.

[0054] FIG. 5B is one example block diagram of a first TRP according to embodiments of the present disclosure.

[0055] FIG. 5C is one example block diagram of a second TRP according to embodiments of the present disclosure.

[0056] FIG. 6A is one example interaction diagram of a communication device according to embodiments of the present disclosure.

[0057] FIG. 6B is one example interaction diagram of a chip according to embodiments of the present disclosure. DETAILED DESCRIPTION

[0058] The example embodiments will be described in detail herein with reference to the accompanying drawings. In the following description, unless otherwise indicated, like numbers in the different drawings represent the same or similar elements. The following example embodiments described in the detailed description are not meant to be an all-inclusive description of all aspects of the application. Rather, they are merely example embodiments consistent with some aspects of the application as detailed in the appended claims.

[0059] The embodiments of the present disclosure provide a TCI state activation method, a terminal, a first TRP and a second TRP.

[0060] In a first aspect, the embodiments of the present disclosure provide a transmission configuration indication (TCI) state activation method. The method is performed by a terminal. The method comprises: receiving a first activation command sent by a first transmission reception point (TRP); wherein the first TRP supports uplink transmission and downlink transmission; wherein the first activation command is used to activate a first uplink TCI state; and wherein the first uplink reference signal configured by the first activation command is from the first TRP, and satisfies a first known condition, the first uplink TCI state is determined to be known; or the first uplink reference signal configured by the first activation command is from a second TRP, and satisfies a second known condition, the first uplink TCI state is determined to be known; wherein the second TRP supports uplink transmission; and activating the known first uplink TCI state.

[0061] In the above embodiments, the terminal can determine that the first uplink TCI state is known in an asymmetric scenario based on different known conditions, and activate the known first uplink TCI state. The uplink transmission performance is improved, and the performance and availability of asymmetric deployment are improved.

[0062] In some embodiments of the first aspect, in some embodiments, the method further comprises any one of: the first uplink reference signal belongs to a first quasi co-location (QCL) type with a downlink reference signal from the first TRP, determining that the first uplink reference signal is from the first TRP; the first uplink reference signal does not belong to the first QCL type with a downlink reference signal from the first TRP, determining that the first uplink reference signal is from the second TRP.

[0063] In the above embodiments, the terminal can determine that the first uplink reference signal is from the first TRP or the second TRP in the above manner, so as to subsequently determine whether the first uplink TCI state is known based on different known conditions, thereby improving the reliability of TCI state activation and improving availability.

[0064] In some embodiments of the first aspect, in some embodiments, the method further comprises: the first uplink reference signal configured by the first activation command is from the first TRP, the first known condition is not met, measuring a reference signal received power (RSRP) to determine a transmission beam direction.

[0065] In the above embodiments, if the first uplink reference signal is from the first TRP and the first known condition is not met, the terminal can measure the RSRP to determine the transmission beam direction, so as to activate the first uplink TCI state in time, thereby improving availability.

[0066] In some embodiments of the first aspect, in some embodiments, the method further comprises: calculating a first path loss; and determining a second path loss based on the first path loss and a path loss offset.

[0067] In the above embodiments, the terminal can jointly determine the second path loss based on the calculated first path loss and the path loss offset, thereby improving the accuracy of path loss determination in an asymmetric scenario.

[0068] In some embodiments of the first aspect, in some embodiments, the first TCI state comprises a path loss reference signal; or a path loss reference signal is associated with the first TCI state; wherein the first TCI state is the first uplink TCI state or an uplink-downlink joint TCI state.

[0069] In the above embodiments, the application range of the path loss reference signal is expanded, thereby improving the accuracy of the determined path loss in an asymmetric scenario.

[0070] In some embodiments of the first aspect, in some embodiments, the path loss reference signal satisfies at least one of the following: same as a source reference signal in the first TCI state; different from the source reference signal in the first TCI state; the path loss reference signal in the first TCI state and the source reference signal in the first TCI state belong to a first quasi co-location type; the path loss reference signal in the first TCI state and the source reference signal in the first TCI state do not belong to the first quasi co-location type.

[0071] In the above embodiments, the path loss reference signal can satisfy at least one of the above, which expands the applicable range of the path loss reference signal and improves the accuracy of the determined path loss in the asymmetric scenario.

[0072] In some embodiments of the first aspect, in some embodiments, the method further comprises: calculating the uplink timing.

[0073] In the above embodiments, the terminal can calculate the uplink timing in the asymmetric scenario, thereby improving the reliability of the uplink transmission.

[0074] In some embodiments of the first aspect, in some embodiments, the method further comprises: transmitting the uplink signal or the uplink information through a first transmission beam based on the second path loss and / or the uplink timing; wherein the first transmission beam is associated with the first uplink TCI state.

[0075] In the above embodiments, the terminal can transmit the uplink signal or the uplink information based on the first transmission beam associated with the activated first uplink TCI state, thereby improving the uplink transmission performance and improving the performance and availability of the asymmetric deployment.

[0076] In some embodiments of the first aspect, in some embodiments, the second known condition includes any one of the following: in a second time period, a first uplink reference signal from the second TRP is a source reference signal in the first uplink TCI state; in a second time period, the first uplink reference signal from the second TRP is quasi co-located with the source reference signal in the first uplink TCI state; wherein the second time period is a time period from the last transmission of the first uplink reference signal resource to the reception of the uplink TCI state switching command.

[0077] In the above embodiments, the second known condition of the TCI state is provided for the second TRP supporting the uplink transmission, thereby improving the reliability of the TCI state activation.

[0078] In some embodiments of the first aspect, in some embodiments, the second known condition comprises at least one of: a length of the second time period is less than or equal to a third value; during the uplink TCI state switching, the first uplink reference signal configured in the first uplink TCI state is in a detectable state; a signal-to-noise ratio of the first uplink reference signal configured in the first uplink TCI state is greater than or equal to a first value.

[0079] In the above embodiments, the second known condition of the TCI state is provided for the second TRP supporting uplink transmission, and the reliability of TCI state activation is improved.

[0080] In some embodiments of the first aspect, in some embodiments, the first known condition comprises any one of: during a first time period, a downlink reference signal for RSRP measurement from the first TRP is a source reference signal in the first uplink TCI state; during the first time period, a downlink reference signal for RSRP measurement from the first TRP is quasi-collocated with the source reference signal in the first uplink TCI state; wherein the first time period is a time period from a last transmission of a downlink reference signal resource for RSRP measurement to completion of the first uplink TCI state switching.

[0081] In the above embodiments, the first known condition of the TCI state is provided for the first TRP supporting uplink transmission and downlink transmission, and the reliability of TCI state activation is improved.

[0082] In some embodiments of the first aspect, in some embodiments, the first known condition comprises at least one of: a length of the first time period is less than or equal to a fourth value; before receiving the uplink TCI state switching command, one or more RSRP reports for the first uplink TCI state have been sent; during the uplink TCI state switching, a signal-to-noise ratio of the downlink reference signal configured in the first uplink TCI state is greater than or equal to a second value; during the uplink TCI state switching, the first uplink TCI state remains in a detectable state.

[0083] In the above embodiments, the first known condition of the TCI state is provided for the first TRP supporting uplink transmission and downlink transmission, and the reliability of TCI state activation is improved.

[0084] In some embodiments of the first aspect, in some embodiments, the method further comprises: receiving a second uplink reference signal resource configured by the second TRP; wherein the second uplink reference signal is used for uplink beam management; transmitting a second uplink reference signal to the second TRP through different transmission beams; receiving a second activation command transmitted by the second TRP; wherein the second activation command is used to activate a second uplink TCI state corresponding to the second TRP; and activating the second uplink TCI state.

[0085] In the above embodiments, the second TRP supporting uplink transmission can perform beam management, and the terminal transmits a second uplink reference signal to the second TRP through different transmission beams, so that the second TRP activates a second uplink TCI state of the second TRP, thereby improving the reliability and reliability of the second TRP supporting uplink transmission performing beam management.

[0086] In the second aspect, the embodiments of the present disclosure provide a transmission configuration indication (TCI) state activation method, the method is performed by a first transmission reception point (TRP), the first TRP supports uplink transmission and downlink transmission, and the method comprises: transmitting a first activation command to a terminal; wherein the first activation command is used to activate a first uplink TCI state; wherein a first uplink reference signal configured by the first activation command is from the first TRP or a second TRP, and the second TRP supports uplink transmission.

[0087] In the above embodiments, the first TRP supporting uplink transmission and downlink transmission can transmit a first activation command to a terminal, thereby activating an uplink TCI state of the first TRP or an uplink TCI state activated by a second TRP supporting uplink transmission, thereby improving uplink transmission performance and improving performance and availability of asymmetric deployment.

[0088] In the third aspect, the embodiments of the present disclosure provide a transmission configuration indication (TCI) state activation method, the method is performed by a second transmission reception point (TRP), the second TRP supports uplink transmission, and the method comprises: configuring a second uplink reference signal resource for the terminal; wherein the second uplink reference signal is used for uplink beam management; receiving a second uplink reference signal transmitted by the terminal through different transmission beams; measuring the second uplink reference signal received by different reception beams to determine a measurement result; based on the measurement result, transmitting a second activation command to the terminal; wherein the second activation command is used to activate a second uplink TCI state corresponding to the second TRP.

[0089] In the above embodiments, the second TRP supporting uplink transmission can perform beam management, the second TRP measures the second uplink reference signal sent by the terminal to the second TRP through different transmission beams, and activates the second uplink TCI state of the second TRP based on the measurement result, thereby improving the reliability and reliability of the second TRP supporting uplink transmission in performing beam management.

[0090] In a fourth aspect, the embodiments of the present disclosure provide a terminal, comprising: a transceiver module configured to receive a first activation command sent by a first transmission reception point (TRP); wherein the first TRP supports uplink transmission and downlink transmission; wherein the first activation command is used to activate a first uplink TCI state; a processing module configured to determine that the first uplink TCI state is known if a first uplink reference signal configured by the first activation command comes from the first TRP and meets a first known condition, or determine that the first uplink TCI state is known if the first uplink reference signal configured by the first activation command comes from a second TRP and meets a second known condition; wherein the second TRP supports uplink transmission; and the processing module is further configured to activate the known first uplink TCI state.

[0091] In a fifth aspect, the embodiments of the present disclosure provide a first transmission reception point (TRP), wherein the first TRP supports uplink transmission and downlink transmission, and the first TRP comprises: a transceiver module configured to send a first activation command to a terminal; wherein the first activation command is used to activate a first uplink TCI state; wherein a first uplink reference signal configured by the first activation command comes from the first TRP or a second TRP, and the second TRP supports uplink transmission.

[0092] In a sixth aspect, the embodiments of the present disclosure provide a second transmission reception point (TRP), wherein the second TRP supports uplink transmission, and the second TRP comprises: a transceiver module configured to configure a second uplink reference signal resource for a terminal; wherein the second uplink reference signal is used for uplink beam management; the transceiver module is further configured to receive a second uplink reference signal sent by the terminal through different transmission beams; a processing module configured to measure the second uplink reference signal received by different reception beams and determine a measurement result; and the transceiver module is further configured to send a second activation command to the terminal based on the measurement result; wherein the second activation command is used to activate a second uplink TCI state corresponding to the second TRP.

[0093] In a seventh aspect, the embodiments of the present disclosure provide a terminal, comprising: one or more processors; wherein the processor is configured to execute the transmission configuration indication (TCI) state activation method of any one of the first aspect.

[0094] In an eighth aspect, the embodiments of the present disclosure provide a transmission reception point, comprising: one or more processors; wherein the processor is configured to execute the transmission configuration indication (TCI) state activation method in any one of the second aspect or the third aspect.

[0095] In a ninth aspect, the embodiments of the present disclosure provide a communication system, comprising: a terminal configured to implement the transmission configuration indication (TCI) state activation method in any one of the first aspect; a first transmission reception point (TRP) supporting uplink transmission and downlink transmission, the first TRP being configured to implement the transmission configuration indication (TCI) state activation method in the second aspect; and a second TRP supporting uplink transmission, the second TRP being configured to implement the transmission configuration indication (TCI) state activation method in the third aspect.

[0096] In a tenth aspect, the embodiments of the present disclosure provide a storage medium, the storage medium storing instructions, when the instructions are executed on an electronic device, causing the electronic device to execute the transmission configuration indication (TCI) state activation method in any one of the first aspect, the second aspect, or the third aspect.

[0097] In an eleventh aspect, the embodiments of the present disclosure provide a computer program product, comprising a computer program configured to implement the transmission configuration indication (TCI) state activation method in any one of the first aspect, the second aspect, or the third aspect when executed by a processor.

[0098] In a twelfth aspect, the embodiments of the present disclosure provide a chip or chip system. The chip or chip system comprises processing circuitry configured to execute the method described in the optional implementation of the first aspect, the second aspect, or the third aspect.

[0099] It can be understood that the terminal, the first TRP, the second TRP, the communication system, the storage medium, the computer program product, the chip or the chip system are all used to execute the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method, which will not be described here.

[0100] The embodiments of the present disclosure propose an invention name. In some embodiments, the terms of the TCI state activation method, the communication method, the TCI state processing method, and the like can be replaced with each other, the terms of the TCI state activation device, the communication device, the TCI state processing device, and the like can be replaced with each other, and the terms of the communication system, the TCI state activation system, the TCI state processing system, and the like can be replaced with each other.

[0101] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing part of the steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation manners in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, part or all steps of different embodiments can be combined arbitrarily, an embodiment can be combined with optional implementation manners of other embodiments arbitrarily.

[0102] In each embodiment of the present disclosure, the terms and / or descriptions between the embodiments are consistent if there is no special description and logical conflict, and can be referred to each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0103] The terms used in the embodiments of the present disclosure are only for the purpose of describing the specific embodiments, and not as a limitation on the present disclosure.

[0104] In the embodiments of the present disclosure, unless otherwise specified, the elements expressed in singular form, such as "one", "a", "the", "above", "said", "preceding", "this" and the like, can represent "one and only one", and can also represent "one or more", "at least one" and the like. For example, in the case of using articles such as "a", "an", "the" and the like in English, the noun after the article can be understood as singular expression, and can also be understood as plural expression.

[0105] In the embodiments of the present disclosure, "a plurality of" means two or more.

[0106] In some embodiments, the terms "at least one of", "one or more", "a plurality of", "multiple" and the like can be replaced with each other.

[0107] In some embodiments, "at least one of A, B", "A and / or B", "in one case A, in another case B", "responsive to case A, responsive to case B" and the like, can be interpreted to include both cases, A and B, in some embodiments, A (A is performed regardless of B), in some embodiments, B (B is performed regardless of A), in some embodiments, selected from the group consisting of A and B (the selection between A and B is an option), in some embodiments, A and B (both A and B are performed).

[0108] In some embodiments, "A or B" and the like, can be interpreted to include both cases, A and B, in some embodiments, A (A is performed regardless of B), in some embodiments, B (B is performed regardless of A), in some embodiments, selected from the group consisting of A and B (the selection between A and B is an option).

[0109] In some embodiments, the prefix words "first", "second", and the like, are used only to distinguish different description objects, and do not limit the position, order, priority, quantity, or content of the description objects, and the description objects are described in the claims or embodiments according to the context, and should not be construed as redundant limitations because of the use of prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified by them are in the same message or not, nor limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more, for example, "first device", where the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and their types can be the same or different; for another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and their contents can be the same or different.

[0110] In some embodiments, "including A", "containing A", "for indicating A", "carrying A", can be interpreted as directly carrying A, or indirectly indicating A.

[0111] In some embodiments, the terms "in response to", "in response to determining", "in the case of", "when", "when", "if", "if" and the like can be replaced with each other.

[0112] In some embodiments, the terms "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 lower than", "above", and the like can be replaced with each other, and the terms "less than", "less than or equal to", "not greater than", "fewer than", "fewer than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below", and the like can be replaced with each other.

[0113] In some embodiments, an apparatus and the like can be interpreted as an entity, and can also be interpreted as virtual, and the name thereof is not limited to the name described in the embodiments. The terms "apparatus", "equipment", "device", "circuitry", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", and the like can be replaced with each other.

[0114] 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", and the like can be replaced with each other.

[0115] In some embodiments, the terminal can 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 can also be configured to have all or part of the functions of the terminal.

[0116] In some embodiments, the data, information, and the like can be acquired in compliance with the laws and regulations of the country where the terminal is located.

[0117] In some embodiments, the data, information, and the like can be acquired after obtaining the consent of the user.

[0118] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0119] FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure.

[0120] As shown in FIG. 1, the communication system 100 includes a terminal 101, a first TRP 102, and a second TRP 103.

[0121] In some embodiments, the terminal 101 includes at least one of a mobile phone, a wearable device, an Internet of Things device, a communication-capable car, a smart car, a Pad, 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 smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, and the like, but is not limited thereto.

[0122] In some embodiments, the first TRP 102 can support both uplink transmission and downlink transmission.

[0123] In some embodiments, the name of the first TRP 102 is not limited and can be interchangeable with an anchor TRP, a reference TRP, and the like.

[0124] The first TRP 102 can provide the terminal 101 with downlink reference signals, downlink control channels, and downlink data transmissions.

[0125] In some embodiments, the second TRP 103 can support uplink transmissions.

[0126] In one example, the second TRP 103 can only support uplink transmissions.

[0127] In another example, the second TRP 103 supports both uplink and downlink transmissions, but can turn off the supported downlink transmission function, thus only supporting uplink transmissions.

[0128] For example, the second TRP 103 supports both uplink and downlink transmissions at the time of deployment, and in order to improve the performance of uplink transmissions and reduce the interference of downlink transmissions on uplink transmissions, the downlink transmission function can be turned off, thus only supporting uplink transmissions.

[0129] For another example, after the second TRP 103 turns off the downlink transmission function, if there is a situation of cell congestion or a shortage of downlink scheduling resources, the downlink transmission function of the second TRP 103 can be turned on, and at this time the second TRP 103 can support both uplink and downlink transmissions.

[0130] In another example, the second TRP 103 can not support downlink transmissions at the deployment stage, and only support uplink transmission functions.

[0131] In some embodiments, the name of the second TRP 103 is not limited, and can be interchangeable with UL-only TRP (UL-only TRP) or uplink TRP.

[0132] In some embodiments, the terminal 101 can perform uplink data transmission to the first TRP 102 and / or the second TRP 103.

[0133] In some embodiments, the main motivation of asymmetric deployment is to improve UL throughput by transmitting UL data from the terminal 101 to the second TRP 103.

[0134] For example, the first TRP 102 in FIG. 1 provides coverage for DL and UL transmissions, and the second TRP 103 is deployed to improve UL performance. Other motivations are to reduce network energy consumption by avoiding downlink data transmission from the second TRP 103. It can be envisioned that a terminal in the cell can first perform initial access through the first TRP 102, and then if the terminal 101 is closer to the second TRP 103 than the first TRP 102 (i.e. the terminal 101 has better UL link budget at this time), or if the network side decides to move the terminal 101 to the second TRP 103, for example, to reduce UL interference of the first TRP 102, or to improve resource usage efficiency, the network side can instruct the terminal 101 to transmit to the second TRP 103.

[0135] Currently, there is a need to strengthen power control to support asymmetric deployment. In multi-TRP operation, it is assumed that each TRP can be used for DL transmission and UL reception. Uplink power control can be based on path loss measurement from the path loss reference signal (PL-RS) of the same TRP that provides DL service. However, when the uplink transmission power corresponding to the second TRP 103 is based on path loss measurement from the DL PL-RS of the first TRP 102, the path losses of the uplink and the downlink are different.

[0136] In addition to the power control aspect, another important aspect is how to set the UL transmission timing to the first TRP 102 and the second TRP 103, respectively. In actual deployment, the first TRP 102 and the second TRP 103 are not co-located, and the propagation delay difference and synchronization timing error between the two can be very large, which will affect the performance of asymmetric TRP deployment.

[0137] In the related art, the UL TCI state activation requirement is defined based on DL RS measurement of the same TRP. For state activation of UL TCI, the terminal 101 will first check whether it has sent a valid Layer 1-Reference Signal Receiving Power (L1-RSRP) report to the network side within a period of time, which is referred to as the known condition of TCI state. Under the known condition, the RS in the UL TCI state needs to be measured and reported within a specified period.

[0138] However, for UL TCI state activation of the second TRP 103, since the second TRP 103 has no downlink transmission, the terminal 101 cannot measure or report the L1-RSRP corresponding to the second TRP 103, making the availability of asymmetric deployment lower.

[0139] To improve the availability of asymmetric deployment in a multi-TRP scenario, the present disclosure provides the following TCI state activation method, terminal, first TRP, and second TRP.

[0140] FIG. 2A is an interaction schematic diagram of a TCI state activation method according to an embodiment of the present disclosure. As shown in FIG. 2A, the present embodiment relates to a TCI state activation method, and the method comprises the following steps:

[0141] In step S2101, the first TRP 102 sends a first activation command to the terminal 101.

[0142] In some embodiments, the terminal 101 receives the first activation command.

[0143] In some embodiments, the first TRP 102 supports uplink transmission and downlink transmission.

[0144] In some embodiments, the name of the first TRP is not limited and can be interchangeable with an anchor TRP, a reference TRP, etc.

[0145] In some embodiments, the first activation command is used to activate a first uplink TCI state. The number of the first uplink TCI state can be one or more, which is not limited by the present disclosure.

[0146] In some embodiments, the first activation command activates the first uplink TCI state corresponding to the first TRP 102.

[0147] In some embodiments, the first activation command activates the first uplink TCI state corresponding to the second TRP 103.

[0148] In some embodiments, the second TRP 103 supports uplink transmission.

[0149] In some embodiments, the name of the second TRP is not limited and can be interchangeable with a Uplink-Only TRP, an uplink TRP, etc.

[0150] In step S2102, the terminal 101 determines that the first uplink reference signal configured by the first activation command is from the first TRP 102 or the second TRP 103.

[0151] In some embodiments, the first uplink reference signal can be a sounding reference signal (SRS), and can also be other uplink reference signals, which are not limited by the present disclosure.

[0152] In some embodiments, if the first uplink reference signal belongs to a first Quasi Co-located (QCL) type with a downlink reference signal from the first TRP, the terminal 101 can determine that the first uplink reference signal is from the first TRP 102.

[0153] In some embodiments, if the first uplink reference signal does not belong to the first QCL type with a downlink reference signal from the first TRP, the terminal 101 can determine that the first uplink reference signal is from the second TRP 103.

[0154] The first QCL type can be used to indicate the relevant parameters of the receiving beam.

[0155] For example, the first QCL type can be QCL-type D, which allows sharing of spatial relationship parameters between signals.

[0156] The above is only an example, and the disclosure does not limit the specific implementation of determining which TRP the first uplink reference signal is from.

[0157] In some embodiments, if the first uplink reference signal configured by the first activation command is from the first TRP 102, the subsequent step S2104 is continued, and if the first uplink reference signal configured by the first activation command is from the second TRP 103, the subsequent step S2103 is continued.

[0158] In step S2103, the second known condition is met, and it is determined that the first uplink TCI state is known.

[0159] In some embodiments, the second known condition is a known condition of the TCI state corresponding to the second TRP 103 (i.e., the uplink-only TRP).

[0160] In some embodiments, meeting the second known condition can determine that the first uplink TCI state is known.

[0161] In some embodiments, the second known condition can include, but is not limited to, any of the following:

[0162] In the second period, the first uplink reference signal from the second TRP is a source reference signal in the first uplink TCI state.

[0163] In the second period, the first uplink reference signal from the second TRP is quasi co-located with the source reference signal in the first uplink TCI state.

[0164] The second period is from the last transmission of the first uplink reference signal resource to the reception of the uplink TCI state switching command.

[0165] Exemplarily, the source reference signal of the TCI state can refer to a reference signal configured by the network side to provide channel state information.

[0166] There is also a target reference signal of the TCI state corresponding to the source reference signal of the TCI state, the target reference signal refers to a signal that needs to be QCL configured with the source reference signal, and the target reference signal can be used to optimize the transmission performance.

[0167] Exemplarily, in the second time period, when the first uplink reference signal from the second TRP is the source reference signal in the first uplink TCI state, the terminal 101 can determine that the first uplink TCI state is known.

[0168] Exemplarily, in the second time period, when the first uplink reference signal from the second TRP is quasi co-located with the source reference signal in the first uplink TCI state, the terminal 101 can determine that the first uplink TCI state is known.

[0169] Specifically, the second known condition can include at least one of the following:

[0170] The length of the second time period is less than or equal to a third value;

[0171] During the uplink TCI state switching, the first uplink reference signal configured in the first uplink TCI state is in a detectable state;

[0172] The signal-to-noise ratio of the configured uplink reference signal in the first uplink TCI state is greater than or equal to a first value.

[0173] Wherein, the third value can be a positive integer, and the unit can be milliseconds, for example, the third value is 1280.

[0174] That is, the terminal 101 receives the uplink TCI state switching command within 1280 milliseconds from the last transmission of the first uplink reference signal resource.

[0175] Wherein, the uplink TCI state switching command can be used to instruct the terminal 101 to switch to one of the one or more first uplink TCI states.

[0176] For example, the first activation command activates 8 uplink TCI states, namely uplink TCI state #1 to uplink TCI state #8, and the uplink TCI state switching command can be used to switch the terminal 101 to uplink TCI state #2.

[0177] Wherein, during the uplink TCI state switching, the first uplink reference signal configured in the first uplink TCI state is in a detectable state, that is, the first uplink reference signal should be in an effective state at this time.

[0178] wherein the first value can be any value, which can be in decibel (db) unit. For example, the first value is -3, and the signal-to-noise ratio of the first downlink reference signal configured in the first uplink TCI state is greater than or equal to -3db.

[0179] It can be understood that if the above-mentioned second known condition is met, the first uplink TCI state is known and can be activated, and at this time, the terminal 101 continues to perform the subsequent step S2107.

[0180] It can be understood that if the above-mentioned second known condition is not met, the first uplink TCI state is unknown and cannot be activated, and at this time, the terminal 101 ends the TCI state activation process.

[0181] Step S2104, the first known condition is met, and it is determined that the first uplink TCI state is known.

[0182] In some embodiments, the first known condition is a known condition of a TCI state corresponding to the first TRP 102 (i.e., the anchor TRP).

[0183] In some embodiments, the first known condition can be met to determine that the first uplink TCI state is known.

[0184] In some embodiments, the first known condition can include but is not limited to any of the following:

[0185] In the first time period, the downlink reference signal for RSRP measurement from the first TRP is a source reference signal in the first uplink TCI state;

[0186] In the first time period, the downlink reference signal for RSRP measurement from the first TRP is quasi-co-located with the source reference signal in the first uplink TCI state.

[0187] wherein the first time period is a time period from the last transmission of a downlink reference signal resource for RSRP measurement to the completion of the switching of the first uplink TCI state.

[0188] Specifically, the first known condition can include but is not limited to any of the following:

[0189] The length of the first time period is less than or equal to a fourth value;

[0190] Before receiving the uplink TCI state switching command, one or more RSRP reports for the first uplink TCI state have been sent;

[0191] During the uplink TCI state switching, the signal-to-noise ratio of the downlink reference signal configured in the first uplink TCI state is greater than or equal to a second value.

[0192] During the uplink TCI state switching, the first uplink TCI state remains a detectable state.

[0193] The fourth value can be a positive integer and can be in units of milliseconds, for example, can be 1280.

[0194] The fourth value can be equal to or different from the third value, which is not limited in the present disclosure.

[0195] The second value can be any value and can be in units of decibels.

[0196] The second value can be equal to or different from the first value, which is not limited in the present disclosure.

[0197] It can be understood that if the above first known condition is not met, the first uplink TCI state is unknown, at which time the terminal 101 can perform steps S2105 to S2106, otherwise steps S2105 to S2106 are skipped.

[0198] Step S2105, performing receive beam sweeping to measure RSRP.

[0199] In some embodiments, since the first uplink TCI state is unknown, i.e., TCI state activation cannot be directly performed, the terminal 101 can start receive beam sweeping to measure the RSRP, for example, L1-RSRP, corresponding to each receive beam.

[0200] Step S2106, determining the transmit beam direction based on the receive beam direction corresponding to the maximum RSRP.

[0201] Wherein, the RSRP is the largest, indicating that the receive beam signal quality is the best, at which time the terminal 101 can determine the transmit beam direction based on the receive beam direction corresponding to the maximum RSRP. Wherein, each transmit beam direction is one-to-one corresponding to each receive beam direction.

[0202] Step S2107, the terminal 101 activates the first uplink TCI state.

[0203] In some embodiments, the terminal 101 activates the first uplink TCI state in the case where the first uplink TCI state is known.

[0204] Step S2108, the terminal 101 calculates the first path loss.

[0205] In some embodiments, the terminal 101 can calculate the first path loss based on the PL-RS. The present disclosure does not limit the way of calculating the first path loss.

[0206] In some embodiments, since the SRS under the uplink TCI state can not be of the first quasi co-location type with the PL-RS, the applicability of the conventional PL-RS needs to be updated.

[0207] In one example, the PL-RS can be included in the first TCI state.

[0208] In one example, the path loss reference signal is associated with the first TCI state, wherein the first TCI state is the first uplink TCI state or a joint uplink-downlink TCI state.

[0209] Exemplarily, the path loss reference signal can satisfy at least one of the following:

[0210] may be the same as a source reference signal under the first TCI state;

[0211] may be different from a source reference signal under the first TCI state;

[0212] the path loss reference signal under the first TCI state and the source reference signal under the first TCI state can be of the first quasi co-location type;

[0213] the path loss reference signal under the first TCI state and the source reference signal under the first TCI state can not be of the first quasi co-location type.

[0214] It can be understood that the path loss reference signal can be the same as or different from the source reference signal under the first TCI state, and in this case, the path loss reference signal can satisfy other conditions so that the path loss reference signal is included in the first TCI state or is associated with the first TCI state.

[0215] Similarly, the path loss reference signal under the first TCI state and the source reference signal under the first TCI state can be of or can not be of the first quasi co-location type, and in this case, the two can be of other quasi co-location types or satisfy other conditions so that the path loss reference signal is included in the first TCI state or is associated with the first TCI state.

[0216] The above is only an exemplary description, and the disclosure does not limit the conditions under which the path loss reference signal is applicable to the asymmetric scenario.

[0217] In some embodiments, for the case that the first uplink reference signal configured by the first activation command is from the first TRP 102, the terminal 101 can calculate the first path loss according to the downlink reference signal configured in the L1-RSRP report.

[0218] Step S2109, the terminal 101 determines a second path loss based on the first path loss and the path loss offset.

[0219] In some embodiments, the terminal 101 determines a total path loss, i.e., the second path loss, based on a sum of the first path loss and the configured path loss offset.

[0220] Step S2110, the terminal 101 calculates an uplink timing.

[0221] In some embodiments, to avoid the interferences between signals sent by different terminals due to the time difference of the signals reaching the network side, the terminal 101 can determine an uplink timing, and perform uplink transmission in advance based on the uplink timing, so as to ensure that the uplink signals sent by multiple terminals reach the network side at the same time.

[0222] In some embodiments, the terminal 101 can calculate the uplink timing according to related technologies.

[0223] Step S2111, the terminal 101 sends uplink signals or uplink information to the first TRP 102 or the second TRP 103 through the first sending beam.

[0224] In some embodiments, the terminal 101 sends the uplink signals or uplink information to the first TRP 102 when it is determined that the first uplink reference signal configured by the first activation command is from the first TRP 102.

[0225] In some embodiments, the terminal 101 sends the uplink signals or uplink information to the second TRP 103 when it is determined that the first uplink reference signal configured by the first activation command is from the second TRP 103.

[0226] In some embodiments, the terminal 101 can send the uplink signals or uplink information through the first sending beam based on the aforementioned second path loss and / or uplink timing, wherein the first sending beam is associated with the activated first uplink TCI state.

[0227] In some embodiments, the number of the first uplink TCI states is one, and the first sending beam is one sending beam corresponding to the first uplink TCI state. Alternatively, the number of the first uplink TCI states is multiple, and the first sending beam is a sending beam corresponding to one of the first uplink TCI states.

[0228] In some embodiments, the first TRP 102 receives the uplink signals or uplink information.

[0229] In some embodiments, the second TRP 103 receives the uplink signals or uplink information.

[0230] In some embodiments, the names of information and the like 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", "field", "symbol", "symbol", "codebook", "codeword", "code point", "bit", "data", "program", "chip", and the like can be replaced with each other.

[0231] In some embodiments, terms such as "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI", and the like can be replaced with each other.

[0232] In some embodiments, "acquire", "obtain", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive", and the like can be replaced with each other, which can be interpreted as receiving from other subjects, acquiring from protocols, acquiring from higher layers, obtaining by oneself, autonomously implementing, and the like.

[0233] In some embodiments, terms such as "send", "transmit", "report", "issue", "transmit", "bidirectional transmission", "send and / or receive", and the like can be replaced with each other.

[0234] The communication method related to the embodiments of the present disclosure can include at least one of steps S2101-S2111. For example, step S2101 can be implemented as an independent embodiment, step S2102 can be implemented as an independent embodiment, steps S2101+S2102 can be implemented as an independent embodiment, step S2103 can be implemented as an independent embodiment, step S2104 can be implemented as an independent embodiment, steps S2105+S2106 can be implemented as an independent embodiment, step S2107 can be implemented as an independent embodiment, step S2108 can be implemented as an independent embodiment, step S2109 can be implemented as an independent embodiment, step S2110 can be implemented as an independent embodiment, steps S2108+S2109+S2110 can be implemented as an independent embodiment, step S2111 can be implemented as an independent embodiment, steps S2101-S2111 can be implemented as an independent embodiment, but are not limited thereto.

[0235] In some embodiments, steps S2105 and S2106 can not be performed.

[0236] In some embodiments, steps S2101-S2111 are optional, and one or more of the steps can be omitted or replaced in different embodiments.

[0237] In some embodiments, the order of performing steps S2101-S2111 is not limited.

[0238] In the above embodiments, the uplink TCI state can be activated in an asymmetric scenario, and the known conditions for the uplink-only TRP are defined, which improves the uplink transmission performance and improves the performance and availability of asymmetric deployment.

[0239] In some embodiments, FIG. 2B is an interaction schematic diagram of a TCI state activation method according to an embodiment of the present disclosure. As shown in FIG. 2B, the embodiments of the present disclosure relate to a TCI state activation method, and the method includes:

[0240] In step S2201, the second TRP 103 configures a second uplink reference signal resource for the terminal 101.

[0241] In some embodiments, the second TRP 103 supports uplink transmission.

[0242] In some embodiments, the name of the second TRP is not limited and can be interchangeable with uplink-only TRP, uplink TRP, etc.

[0243] In some embodiments, the second uplink reference signal can be SRS.

[0244] In some embodiments, the second uplink reference signal can be used for beam management. Wherein, the beam management refers to that the network side and the terminal determine a set of transmission beams and reception beams, so as to perform uplink and downlink transmission.

[0245] In some embodiments, the second TRP 103 cannot transmit a downlink data channel, but can transmit a downlink control channel.

[0246] In some embodiments, the second TRP 103 can configure the second uplink reference signal resource for the terminal 101 through the downlink control channel, including but not limited to the time domain resource and the frequency domain resource on which the second uplink reference signal can be transmitted.

[0247] In some embodiments, the terminal 101 receives the second uplink reference signal resource.

[0248] Step S2202, the terminal 101 transmits the second uplink reference signal to the second TRP 103 through different transmission beams.

[0249] In some embodiments, the second TRP 103 receives the second uplink reference signal through different reception beams.

[0250] Step S2203, the second TRP 103 measures the second uplink reference signal received by different reception beams, and determines a measurement result.

[0251] In some embodiments, the second uplink reference signal received by different reception beams can be measured by the second TRP 103 to determine a measurement result, wherein the measurement result can include the RSRP corresponding to each reception beam, such as L1-RSRP.

[0252] Step S2204, the second TRP 103 sends a second activation command to the terminal 101 based on the measurement result.

[0253] In some embodiments, the second activation command can be used to activate the second uplink TCI state corresponding to the second TRP 102.

[0254] In some embodiments, the terminal 101 receives the second activation command.

[0255] Step S2205, the terminal 101 activates the second uplink TCI state.

[0256] It can be understood that at this time, the terminal 101 activates an uplink TCI state (second uplink TCI state) corresponding to the beam management stage, and subsequently, if the network side considers it necessary, it can activate other uplink TCI states (first uplink TCI state) for the first TRP 102 or the second TRP 103 through the first activation command. The specific process is not described here.

[0257] In some embodiments, steps S2201 to S2205 are optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0258] In some embodiments, the execution order of steps S2201 to S2205 is not limited.

[0259] In the above embodiments, only the uplink TRP can use the above-mentioned method for beam management, thereby improving the uplink transmission performance and improving the performance and availability of asymmetric deployment.

[0260] FIG. 3A is an interaction schematic diagram of a TCI state activation method according to an embodiment of the present disclosure. As shown in FIG. 3A, the present disclosure relates to a TCI state activation method, which is performed by the terminal 101, and the method comprises:

[0261] In step S3101, a second uplink reference signal resource is acquired.

[0262] In some embodiments, the second uplink reference signal can be used for beam management.

[0263] In some embodiments, the terminal 101 can acquire the second uplink reference signal resource from the second TRP 103, but is not limited thereto, and can also receive the second uplink reference signal resource sent by other subjects.

[0264] In some embodiments, the terminal 101 acquires the second uplink reference signal resource specified by a protocol.

[0265] In some embodiments, the terminal 101 acquires the second uplink reference signal resource from the upper layer(s).

[0266] In some embodiments, the terminal 101 processes to obtain the second uplink reference signal resource.

[0267] In some embodiments, step S3101 is omitted, and the terminal 101 autonomously implements the function indicated by the second uplink reference signal, or the terminal 101 acquires the second uplink reference signal based on a predefined rule or protocol agreement, or the above-mentioned function is default or default.

[0268] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2201 of FIG. 2B and other associated parts in the embodiments involved by FIG. 2B, which will not be described here.

[0269] In step S3102, the second uplink reference signal is sent.

[0270] In some embodiments, the terminal 101 transmits the second uplink reference signal to the second TRP 103 through different transmission beams.

[0271] In some embodiments, the second TRP 103 receives the second uplink reference signal through different reception beams.

[0272] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2202 in FIG. 2B and other associated parts in the embodiments involved in FIG. 2B, which will not be repeated here.

[0273] Step S3103: Obtain a second activation command.

[0274] In some embodiments, the second activation command is used to activate a second uplink TCI state corresponding to the second TRP 102.

[0275] In some embodiments, the terminal 101 can obtain the second activation command from the second TRP 103, but is not limited thereto, and can also receive the second activation command sent by other subjects.

[0276] In some embodiments, the terminal 101 obtains the second activation command specified by a protocol.

[0277] In some embodiments, the terminal 101 obtains the second activation command from the upper layer(s).

[0278] In some embodiments, the terminal 101 processes to obtain the second activation command.

[0279] In some embodiments, step S3103 is omitted, and the terminal 101 autonomously implements the function indicated by the second activation command, or the terminal 101 obtains the second activation command based on a pre-defined rule or protocol agreement, or the above function is default or default.

[0280] In some embodiments, the optional implementation of step S3103 can refer to the optional implementation of step S2203 in FIG. 2B and other associated parts in the embodiments involved in FIG. 2B, which will not be repeated here.

[0281] Step S3104: Activate the second uplink TCI state.

[0282] In some embodiments, the optional implementation of step S3104 can refer to the optional implementation of step S2204 in FIG. 2B and other associated parts in the embodiments involved in FIG. 2B, which will not be repeated here.

[0283] Step S3105: Obtain a first activation command.

[0284] In some embodiments, the first activation command is used to activate the first uplink TCI state.

[0285] In some embodiments, the terminal 101 can obtain the first activation command from the first TRP 102, but is not limited thereto, and can also receive the first activation command sent by other subjects.

[0286] In some embodiments, the terminal 101 obtains the first activation command specified by a protocol.

[0287] In some embodiments, the terminal 101 obtains the first activation command from the upper layer(s).

[0288] In some embodiments, the terminal 101 processes to obtain the first activation command.

[0289] In some embodiments, step S3105 is omitted, and the terminal 101 autonomously implements the function indicated by the first activation command, or the terminal 101 obtains the first activation command based on a pre-defined rule or a protocol agreement, or the above function is default or default.

[0290] In some embodiments, the optional implementation of step S3105 can refer to the optional implementation of step S2101 of FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0291] Step S3106, determining that the first uplink reference signal configured by the first activation command is from the first TRP 102 or the second TRP 103.

[0292] In some embodiments, the optional implementation of step S3106 can refer to the optional implementation of step S2102 of FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0293] Step S3107, determining that the first uplink TCI state is known.

[0294] In some embodiments, the optional implementation of step S3107 can refer to the optional implementation of step S2103 or S2104 of FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0295] Step S3108, measuring to obtain RSRP.

[0296] In some embodiments, the optional implementation of step S3108 can refer to the optional implementation of step S2105 of FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0297] Step S3109, determining the transmission beam direction.

[0298] In some embodiments, the optional implementation of step S3109 can refer to the optional implementation of step S2106 in FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0299] Step S3110, activating the first uplink TCI state.

[0300] In some embodiments, the optional implementation of step S3110 can refer to the optional implementation of step S2107 in FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0301] Step S3111, calculating the first path loss.

[0302] In some embodiments, the optional implementation of step S3111 can refer to the optional implementation of step S2108 in FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0303] Step S3112, determining the second path loss.

[0304] In some embodiments, the optional implementation of step S3112 can refer to the optional implementation of step S2109 in FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0305] Step S3113, calculating the uplink timing.

[0306] In some embodiments, the optional implementation of step S3112 can refer to the optional implementation of step S2110 in FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0307] Step S3114, sending the uplink signal or uplink information.

[0308] In some embodiments, the optional implementation of step S3113 can refer to the optional implementation of step S2111 in FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0309] In some embodiments, steps S3101 to S3114 are optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0310] In some embodiments, the execution order of steps S3101 to S3114 is not limited.

[0311] In the above embodiments, the uplink TCI states corresponding to different TRPs can be activated in an asymmetric scenario, and the known conditions for the uplink TRP are defined, thereby improving the uplink transmission performance and the performance and availability of the asymmetric deployment.

[0312] FIG. 3B is an interaction schematic diagram of a TCI state activation method according to an embodiment of the present disclosure. As shown in FIG. 3B, the embodiment of the present disclosure relates to a TCI state activation method, which is performed by the terminal 101 and includes the following steps:

[0313] In step S3201, a first activation command is acquired.

[0314] In some embodiments, the first activation command is used to activate the first uplink TCI state.

[0315] In some embodiments, the terminal 101 can acquire the first activation command from the first TRP 102 or the second TRP 103, but is not limited thereto, and can also receive the first activation command sent by other subjects.

[0316] In some embodiments, the terminal 101 acquires the first activation command specified by a protocol.

[0317] In some embodiments, the terminal 101 acquires the first activation command from the upper layer(s).

[0318] In some embodiments, the terminal 101 processes to obtain the first activation command.

[0319] In some embodiments, step S3201 is omitted, and the terminal 101 autonomously implements the function indicated by the first activation command, or the terminal 101 acquires the first activation command based on a pre-defined rule or a protocol agreement, or the above function is default or default.

[0320] In some embodiments, the optional implementation of step S3201 can refer to the optional implementation of step S2101 in FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0321] In step S3202, it is determined that the first uplink reference signal configured by the first activation command is from the first TRP 102 or the second TRP 103.

[0322] In some embodiments, the optional implementation of step S3202 can refer to the optional implementation of step S2102 in FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0323] In step S3203, it is determined that the first uplink TCI state is known.

[0324] In some embodiments, the optional implementation of step S3203 can refer to the optional implementation of step S2103 or S2104 in FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0325] Step S3204: activating the first uplink TCI state.

[0326] In some embodiments, the optional implementation of step S3204 can refer to the optional implementation of step S2107 in FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0327] In some embodiments, steps S3201 to S3204 are optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0328] In some embodiments, the execution order of steps S3201 to S3204 is not limited.

[0329] In the above embodiments, the first uplink TCI state can be activated when the known conditions corresponding to different TRPs are met in the asymmetric scenario, thereby improving the uplink transmission performance and improving the performance and availability of asymmetric deployment.

[0330] FIG. 3C is an interaction diagram of a TCI state activation method according to an embodiment of the present disclosure. As shown in FIG. 3C, the embodiment of the present disclosure relates to a TCI state activation method, and the above method is performed by the first TRP 102, which includes:

[0331] Step S3301: sending a first activation command.

[0332] In some embodiments, the first TRP 102 sends the first activation command to the terminal 101.

[0333] In some embodiments, the terminal 101 receives the first activation command.

[0334] In some embodiments, the first activation command is used to activate the first uplink TCI state.

[0335] In some embodiments, the optional implementation of step S3301 can refer to the optional implementation of step S2101 in FIG. 2A and other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0336] In the above embodiments, the first activation command can be sent by the first TRP supporting uplink and downlink transmission to activate the first uplink TCI state corresponding to the first TRP or the second TRP in the asymmetric scenario, thereby improving the uplink transmission performance and improving the performance and availability of asymmetric deployment.

[0337] FIG. 3D is an interaction schematic diagram of a TCI state activation method according to an embodiment of the present disclosure. As shown in FIG. 3D, the embodiment of the present disclosure relates to a TCI state activation method, wherein the method is performed by the second TRP 103, and the method comprises the following steps:

[0338] In step S3401, a second uplink reference signal resource is configured.

[0339] In some embodiments, the second TRP 103 configures the terminal 101 with the second uplink reference signal resource.

[0340] In some embodiments, the optional implementation of step S3401 can refer to the optional implementation of step S2201 in FIG. 2B and other associated parts in the embodiments related to FIG. 2B, which will not be repeated here.

[0341] In step S3402, a second uplink reference signal is obtained.

[0342] In some embodiments, the terminal 101 transmits the second uplink reference signal to the second TRP 103 through different transmission beams.

[0343] In some embodiments, the second TRP 103 receives the second uplink reference signal through different receiving beams.

[0344] In some embodiments, the optional implementation of step S3402 can refer to the optional implementation of step S2202 in FIG. 2B and other associated parts in the embodiments related to FIG. 2B, which will not be repeated here.

[0345] In step S3403, a measurement result is determined.

[0346] In some embodiments, the optional implementation of step S3403 can refer to the optional implementation of step S2203 in FIG. 2B and other associated parts in the embodiments related to FIG. 2B, which will not be repeated here.

[0347] In step S3404, a second activation command is transmitted.

[0348] In some embodiments, the second activation command can be used to activate a second uplink TCI state corresponding to the second TRP 102.

[0349] In some embodiments, the second TRP 103 transmits the second activation command to the terminal 101 based on the measurement result.

[0350] In some embodiments, the terminal 101 receives the second activation command.

[0351] In some embodiments, the optional implementation of step S3404 can refer to the optional implementation of step S2204 in FIG. 2B and other associated parts in the embodiments related to FIG. 2B, which are not repeated here.

[0352] In some embodiments, steps S3401 to S3404 are optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0353] In some embodiments, the execution order of steps S3401 to S3404 is not limited.

[0354] In the above embodiments, the second TRP supporting uplink transmission can perform beam management, activate the second uplink TCI state, and improve the performance and availability of asymmetric deployment.

[0355] The above process is further illustrated as follows.

[0356] For UL TCI state activation of the UL-only TRP (second TRP 103), the SRS resource identification will be configured in the UL TCI activation command. It is different from the traditional UL TCI state activation, in which the DL-RS from the TRP will be configured in the command.

[0357] Before the UL TCI state activation command, beam management needs to be performed for UL beam selection, as shown in the following FIG. 4A, including the following steps:

[0358] Step S4101, the second TRP 103 configures the SRS resource for uplink beam management for the terminal 101.

[0359] Step S4102, the terminal 101 sends SRS to the second TRP 103 through different transmission beams.

[0360] Step S4103, the second TRP 103 performs SRS measurement of different beams.

[0361] Step S4104, the second TRP 103 sends the uplink TCI state activation command to the terminal 101.

[0362] Step S4105, the terminal 101 performs uplink TCI state activation.

[0363] In some embodiments, the TCI state activation procedure is as shown in FIG. 4B, the first TRP sends a first activation command to the terminal, the terminal can determine whether the SRS in it is from the first TRP, if not from the first TRP, the terminal can determine whether the known condition 2 is met, if not met, the activation process ends, if met, the terminal calculates the path loss, adds the path loss offset, and calculates the uplink timing, and sends the uplink signal using the new transmission beam. If the SRS is from the first TRP, the terminal determines whether the known condition 1 is met, if met, directly performs path loss and uplink timing calculation, and sends the uplink signal using the new transmission beam, if not met, the terminal can perform reception beam measurement, determines the transmission beam direction based on the reception beam direction corresponding to the maximum RSRP measured, and finally performs path loss and uplink timing calculation, and sends the uplink signal using the new transmission beam. The specific steps are similar to the related steps of FIG. 2A, and will not be repeated here.

[0364] For UL TCI state activation, SRS resource identification will be configured in the UL TCI activation command. The known condition of the UL TCI state will depend on the configuration method of the SRS resource, and there are the following two options:

[0365] Scenario 1, the SRS in the UL TCI state activation is not QCL-typeD with the downlink reference signal of the anchor TRP (the first TRP 102).

[0366] The known condition 2 (i.e. the second known condition) is as follows:

[0367] The uplink TCI state is known if the following conditions are met:

[0368] - within a period from the last transmission of a first uplink reference signal resource to the reception of an uplink TCI state switching command, wherein the first uplink reference signal from the second TRP is a source reference signal in the first uplink TCI state;

[0369] - within a period from the last transmission of a first uplink reference signal resource to the reception of an uplink TCI state switching command, the first uplink reference signal from the second TRP is quasi co-located with the source reference signal in the first uplink TCI state.

[0370] Specifically, the known condition 2 includes any of the following:

[0371] The uplink TCI state switching command is received within 1280 milliseconds after the last transmission of the SRS resource;

[0372] During the uplink TCI state switching, the first uplink reference signal configured in the first uplink TCI state is in a detectable state;

[0373] The signal-to-noise ratio of the configured first uplink reference signal in the first uplink TCI state is ≥ -3dB.

[0374] Otherwise, the uplink TCI state is unknown.

[0375] Scenario 2, SRS in UL TCI state activation is QCL-typeD with downlink reference signal of anchor TRP (first TRP 102).

[0376] Known condition 1 (i.e., first known condition) is as follows:

[0377] From the last transmission of RS resource used for L1-RSRP measurement report of the first uplink TCI state to the completion of active uplink TCI state switching, the downlink reference signal from the first TRP for RSRP measurement is the source reference signal in the first uplink TCI state;

[0378] From the last transmission of RS resource used for L1-RSRP measurement report of the first uplink TCI state to the completion of active uplink TCI state switching, the downlink reference signal from the first TRP for RSRP measurement is quasi-co-located with the source reference signal in the first uplink TCI state.

[0379] Specifically, the known condition 1 includes any of the following:

[0380] Receiving an uplink TCI state switching command within X milliseconds after the last transmission of RS resource for beam reporting or measurement; wherein X is a positive integer;

[0381] The terminal has sent at least one L1-RSRP report for the first uplink TCI state before the uplink TCI state switching command;

[0382] During the uplink TCI state switching, the RS configured in the first uplink TCI remains detectable;

[0383] The signal-to-noise ratio of the configured RS in the first uplink TCI state is ≥ YdB, Y is any value;

[0384] During the uplink TCI state switching, the state of the first uplink TCI remains detectable.

[0385] Otherwise, the uplink TCI state is unknown.

[0386] Path loss calculation:

[0387] Since the SRS in the UL TCI state may not be QCL-D with the PL-RS, it is necessary to update the traditional PL-RS applicability:

[0388] A PL-RS can be associated with or contained in a UL TCI state or a joint TCI state. A PL-RS can be associated with or contained in a UL TCI state or a joint TCI state if any of the following conditions is met:

[0389] - The PL-RS can be the same as a source RS in the UL TCI state or the joint TCI state;

[0390] - The PL-RS and the source RS in the UL TCI state or the joint TCI state can be QCL Type-D.

[0391] The terminal will calculate the path loss according to the DL-RS configured in the L1-RSRP report, and add the configured RL-RS offset to obtain the total path loss.

[0392] Embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device comprising units or modules for implementing the steps performed by the terminal in any of the above methods. For another example, another device is also proposed, comprising units or modules for implementing the steps performed by the first TRP or the second TRP in any of the above methods.

[0393] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor, the processor is connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to realize the functions of any of the above methods or the units or modules of the above apparatus, wherein the processor is a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of the hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are realized by the design of the logical relationship between the elements in the circuit; for another example, in another implementation, the above hardware circuit is a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the units or modules. All units or modules of the above apparatus can be all implemented in the form of processor calling software, or all implemented in the form of hardware circuit, or part implemented in the form of processor calling software and the remaining part implemented in the form of hardware circuit.

[0394] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), or the like. In another implementation, the processor can implement certain functions through a logical relationship of a hardware circuit, and the logical relationship of the hardware circuit is fixed or can be reconfigured. 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 the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all 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), and the like.

[0395] FIG. 5A is a structural schematic diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG. 5A, the terminal 5100 can include a transceiver module 5101 and a processing module 5102.

[0396] In some embodiments, the transceiver module 5101 described above is configured to receive a first activation command sent by a first transmission and reception point (TRP); wherein the first TRP supports uplink transmission and downlink transmission; wherein the first activation command is used to activate a first uplink TCI state.

[0397] In some embodiments, the processing module 5102 described above is configured to determine that the first uplink TCI state is known when a first uplink reference signal configured by the first activation command comes from the first TRP and meets a first known condition; or determine that the first uplink TCI state is known when a first uplink reference signal configured by the first activation command comes from a second TRP and meets a second known condition; wherein the second TRP supports uplink transmission; and the processing module is further configured to activate the known first uplink TCI state.

[0398] Optionally, the transceiver 5101 is configured to perform at least one of the communication steps (e.g., steps S2101, S2111, S2201, S2202, S2204, but not limited thereto) of the terminal 5100 in any of the above methods, which will not be described herein again.

[0399] Optionally, the processing module 5102 is configured to perform at least one of the other communication steps (e.g., steps S2102, S2103, S2104, S2105, S2106, S2107, S2108, S2109, S2110, S2205, but not limited thereto) of the terminal 5100 in any of the above methods, which will not be described herein again.

[0400] FIG. 5B is a structural schematic diagram of a first TRP according to an embodiment of the present disclosure. As shown in FIG. 5B, the first TRP 5200 can include a transceiver 5201.

[0401] In some embodiments, the transceiver 5201 is configured to send a first activation command to the terminal; wherein the first activation command is used to activate a first uplink TCI state.

[0402] Optionally, the transceiver 5201 is configured to perform at least one of the communication steps (e.g., steps S2101, S2111, but not limited thereto) of the first TRP 5200 in any of the above methods, which will not be described herein again.

[0403] FIG. 5C is a structural schematic diagram of a second TRP according to an embodiment of the present disclosure. As shown in FIG. 5C, the second TRP 5300 can include a transceiver 5301 and a processing module 5302.

[0404] In some embodiments, the transceiver 5301 is configured to configure a second uplink reference signal resource for the terminal; wherein the second uplink reference signal is used for uplink beam management; and receive the second uplink reference signal sent by the terminal through different transmission beams.

[0405] In some embodiments, the processing module 5302 is configured to measure the second uplink reference signal received by different reception beams, determine a measurement result; and send a second activation command to the terminal based on the measurement result; wherein the second activation command is used to activate a second uplink TCI state corresponding to the second TRP.

[0406] Optionally, the transceiver module 5301 is configured to perform at least one of the steps of receiving and / or sending communications performed by the second TRP 5300 in any of the methods described above (for example, steps S2111, S2201, S2202, S2204, but not limited thereto), details are not repeated here.

[0407] Optionally, the processing module 5302 is configured to perform at least one of the other steps performed by the second TRP 5300 in any of the methods described above (for example, step S2203, but not limited thereto), details are not repeated here.

[0408] In some embodiments, the sending module and / or the receiving module can be referred to as a transceiver module, and the sending module and the receiving module can be separate or integrated together. Optionally, the transceiver module can be mutually replaced with the transceiver.

[0409] In some embodiments, the processing module can be one module, or can include multiple sub-modules. Optionally, the multiple sub-modules perform all or part of the steps required to be performed by the processing module, respectively. Optionally, the processing module can be mutually replaced with the processor.

[0410] FIG. 6A is a structural schematic diagram of a communication device 6100 according to the embodiments of the present disclosure. The communication device 6100 can be a terminal (for example, a user equipment, a vehicle, an Internet of Things device, etc.), or a first device (for example, a test device, an access network device, a core network device, etc.), or a chip, a chip system, or a processor supporting the terminal to implement any of the methods described above, or a chip, a chip system, or a processor supporting the network device to implement any of the methods described above. The communication device 6100 can be used to implement the methods described in the above method embodiments, and details can be referred to the descriptions in the above method embodiments.

[0411] As shown in FIG. 6A, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a special-purpose processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (for example, a test device, a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process data of the programs. Optionally, the communication device 6100 is configured to perform any of the above methods. Optionally, the one or more processors 6101 are configured to invoke instructions to cause the communication device 6100 to perform any of the above methods.

[0412] 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 (e.g., steps S2101, steps S2111, steps S2201, steps S2202, steps S2204, but not limited to) in the above-described methods, and the processor 7101 performs at least one of the other steps (e.g., steps S2102, steps S2103, steps S2104, steps S2105, steps S2106, steps S2107, steps S2108, steps S2109, steps S2110, steps S2203, steps S2205, but not limited to). In optional embodiments, the transceiver can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, interface circuit, interface, etc. can be replaced with each other, and the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced with each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced with each other.

[0413] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Optionally, all or part of the memory 6103 can also be outside the communication device 6100. In optional embodiments, the communication device 6100 can include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected with the memory 6103, and the interface circuit 6104 can be used to receive data from the memory 6103 or other devices, and can be used to send data to the memory 6103 or other devices. For example, the interface circuit 6104 can read the data stored in the memory 6103 and send the data to the processor 6101.

[0414] The communication device 6100 described in the above embodiments can 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 can not be limited by FIG. 6A. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: (1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally include storage components for storing data, programs; (3) an ASIC, such as a Modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0415] FIG. 6B is a structural schematic diagram of a chip 6200 according to an embodiment of the present disclosure. For the case that the communication device 6100 can be a chip or a chip system, the structural schematic diagram of the chip 6200 shown in FIG. 6B can be referred to, but is not limited thereto.

[0416] The chip 6200 comprises one or more processors 6201. The chip 6200 is configured to perform any of the above methods.

[0417] In some embodiments, the chip 6200 further comprises one or more interface circuits 6202. Optionally, the terms of interface circuit, interface, transceiver pin, etc. can be replaced by each other. In some embodiments, the chip 6200 further comprises one or more memories 6203 for storing data. Optionally, all or part of the memory 6203 can be outside the chip 6200. Optionally, the interface circuit 6202 is connected with the memory 6203, the interface circuit 6202 can be configured to receive data from the memory 6203 or other devices, and the interface circuit 6202 can be configured to send data to the memory 6203 or other devices. For example, the interface circuit 6202 can read the data stored in the memory 6203 and send the data to the processor 6201.

[0418] In some embodiments, the interface circuit 6202 performs at least one of the communication steps (such as step S2101, step S2111, step S2201, step S2202, step S2204, but not limited thereto) of transmitting and / or receiving in the above methods. The interface circuit 6202 performing the communication steps such as transmitting and / or receiving in the above methods means that the interface circuit 6202 performs data interaction 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 (such as step S2102, step S2103, step S2104, step S2105, step S2106, step S2107, step S2108, step S2109, step S2110, step S2203, step S2205, but not limited thereto).

[0419] The modules and / or devices described in each of the embodiments of the virtual device, the physical device, the chip, etc. can be combined or separated as appropriate. Optionally, part or all of the steps can also be performed by a plurality of modules and / or devices in cooperation, which is not limited herein.

[0420] The disclosure further provides a storage medium having stored instructions thereon that, when executed on the communication device 6100, cause the communication device 6100 to perform 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 can also be a storage medium readable by other apparatuses. Optionally, the storage medium can be a non-transitory storage medium, but is not limited thereto, and can also be a transitory storage medium.

[0421] The disclosure further provides a program product that, when executed by the communication device 6100, causes the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0422] The disclosure further provides a computer program that, when executed on a computer, causes the computer to perform any of the above methods.

[0423] Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. The disclosure is intended to cover any variations, uses or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the disclosure are indicated by the following claims.

[0424] It should be understood that the present disclosure is not limited to the precise structures herein described and illustrated, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the claims that follow.

Claims

1. A method for activating the Transmission Configuration Indicator (TCI) state, characterized in that, The method is executed by a terminal, and the method includes: Receive a first activation command sent by a first transmission receiving point (TRP); wherein the first TRP supports uplink transmission and downlink transmission; wherein the first activation command is used to activate a first uplink TCI state; The first uplink reference signal configured by the first activation command comes from the first TRP, satisfies the first known condition, and determines that the first uplink TCI state is known; or The first uplink reference signal configured by the first activation command comes from the second TRP, satisfies the second known condition, and determines that the first uplink TCI state is known; wherein, the second TRP supports uplink transmission; Activate the known first uplink TCI state.

2. The method according to claim 1, characterized in that, The method further includes any one of the following: The first uplink reference signal and the downlink reference signal from the first TRP belong to the first quasi-co-address QCL type, thus determining that the first uplink reference signal comes from the first TRP; Since the first uplink reference signal and the downlink reference signal from the first TRP do not belong to the first quasi-co-address QCL type, it is determined that the first uplink reference signal comes from the second TRP.

3. The method according to claim 1 or 2, characterized in that, The method further includes: The first uplink reference signal configured by the first activation command comes from the first TRP and does not meet the first known condition. The reference signal received power RSRP is measured to determine the transmit beam direction.

4. The method according to any one of claims 1-3, characterized in that, The method further includes: Calculate the first path loss; The second path loss is determined based on the first path loss and the path loss offset.

5. The method according to claim 4, characterized in that, The first TCI state includes a path loss reference signal; or The path loss reference signal is associated with the first TCI state; The first TCI state is either the first uplink TCI state or the combined uplink and downlink TCI state.

6. The method according to claim 5, characterized in that, The path loss reference signal satisfies at least one of the following: The same as the source reference signal in the first TCI state; Unlike the source reference signal in the first TCI state; The path loss reference signal in the first TCI state and the source reference signal in the first TCI state belong to the first quasi-co-address type; The path loss reference signal and the source reference signal in the first TCI state do not belong to the first quasi-co-address type.

7. The method according to any one of claims 1-6, characterized in that, The method further includes: Calculate the uplink timing.

8. The method according to any one of claims 1-7, characterized in that, The method further includes: Based on the second path loss and / or uplink timing, uplink signals or uplink information are transmitted through a first transmit beam; wherein, the first transmit beam is associated with the first uplink TCI state.

9. The method according to any one of claims 1-8, characterized in that, The second known condition includes any one of the following: During the second time period, the first uplink reference signal from the second TRP is the source reference signal in the first uplink TCI state; During the second time period, the first uplink reference signal from the second TRP is quasi-co-located with the source reference signal in the first uplink TCI state; The second time period is the period from the last transmission of the first uplink reference signal resource to the receipt of the uplink TCI state switching command.

10. The method according to claim 9, characterized in that, The second known condition includes at least one of the following: The length of the second time period is less than or equal to the third value; During the uplink TCI state switching, the first uplink reference signal configured in the first uplink TCI state is in a detectable state; In the first uplink TCI state, the signal-to-noise ratio of the first uplink reference signal configured therein is greater than or equal to a first value.

11. The method according to any one of claims 1-10, characterized in that, The first known condition includes any one of the following: During the first time period, the downlink reference signal from the first TRP for RSRP measurement is the source reference signal in the first uplink TCI state; During the first time period, the downlink reference signal from the first TRP for RSRP measurement is quasi-co-located with the source reference signal in the first uplink TCI state; The first time period is the period from the last transmission of downlink reference signal resources for RSRP measurement to the completion of the first uplink TCI state switch.

12. The method according to claim 11, characterized in that, The first known condition includes at least one of the following: The length of the first time period is less than or equal to the fourth value; Before receiving the uplink TCI state switching command, one or more RSRP reports for the first uplink TCI state have been sent; During the uplink TCI state switching, the signal-to-noise ratio of the downlink reference signal configured in the first uplink TCI state is greater than or equal to the second value; During the uplink TCI state transition, the first uplink TCI state remains detectable.

13. The method according to any one of claims 1-12, characterized in that, The method further includes: Receive the second uplink reference signal resource configured by the second TRP; wherein the second uplink reference signal is used for uplink beam management; A second uplink reference signal is transmitted to the second TRP using different transmit beams; Receive a second activation command sent by the second TRP; wherein the second activation command is used to activate the second uplink TCI state corresponding to the second TRP; Activate the second uplink TCI state.

14. A method for activating the Transmission Configuration Indicator (TCI) state, characterized in that, The method is executed by a first transmission receiving point (TRP), which supports uplink and downlink transmissions. The method includes: Send a first activation command to the terminal; wherein the first activation command is used to activate a first uplink TCI state; wherein the first uplink reference signal configured by the first activation command comes from the first TRP or the second TRP, and the second TRP supports uplink transmission.

15. A method for activating the Transmission Configuration Indicator (TCI) state, characterized in that, The method is executed by a second transmission receiving point (TRP), which only supports uplink transmission. The method includes: Configure a second uplink reference signal resource for the terminal; wherein the second uplink reference signal is used for uplink beam management; Receive the second uplink reference signal transmitted by the terminal through different transmit beams; The second uplink reference signal received by different receiving beams is measured, and the measurement results are determined. Based on the measurement results, a second activation command is sent to the terminal; wherein the second activation command is used to activate the second uplink TCI state corresponding to the second TRP.

16. A terminal, characterized in that, include: The transceiver module is configured to receive a first activation command sent by a first transmission receiving point (TRP); wherein the first TRP supports uplink transmission and downlink transmission; wherein the first activation command is used to activate a first uplink TCI state. The processing module is configured such that the first uplink reference signal configured by the first activation command originates from the first TRP, satisfying a first known condition, and determines that the first uplink TCI state is known; or The first uplink reference signal configured by the first activation command comes from the second TRP, satisfies the second known condition, and determines that the first uplink TCI state is known; wherein, the second TRP supports uplink transmission; The processing module is also configured to activate a known first uplink TCI state.

17. A first transmission receiving point (TRP), characterized in that, The first TRP supports uplink and downlink transmissions, and the first TRP includes: The transceiver module is configured to send a first activation command to the terminal; wherein the first activation command is used to activate a first uplink TCI state; wherein the first uplink reference signal configured by the first activation command comes from the first TRP or the second TRP, and the second TRP supports uplink transmission.

18. A second transmission receiving point (TRP), characterized in that, The second TRP supports uplink transmission, and the second TRP includes: The transceiver module is configured to configure a second uplink reference signal resource for the terminal; wherein the second uplink reference signal is used for uplink beam management; The transceiver module is also configured to receive a second uplink reference signal transmitted by the terminal through different transmission beams; The processing module is configured to measure the second uplink reference signal received by different receiving beams and determine the measurement results; The transceiver module is further configured to send a second activation command to the terminal based on the measurement result; wherein the second activation command is used to activate the second uplink TCI state corresponding to the second TRP.

19. A terminal, characterized in that, include: One or more processors; The processor is configured to execute the Transmission Configuration Indicator (TCI) state activation method according to any one of claims 1-13.

20. A transmission and receiving point, characterized in that, include: One or more processors; The processor is configured to execute the Transmission Configuration Indicator (TCI) state activation method as described in any one of claims 14 or 15.

21. A communication system, characterized in that, include: The terminal is configured to implement the Transmission Configuration Indicator (TCI) state activation method according to any one of claims 1-13; A first transmission receiving point (TRP) supporting uplink and downlink transmissions, the first TRP being configured to implement the Transmission Configuration Indicator (TCI) state activation method as described in claim 14; A second TRP that supports uplink transmission, the second TRP being configured to implement the Transmission Configuration Indicator (TCI) state activation method as described in claim 15.

22. A storage medium storing instructions, characterized in that, When the instruction is executed on the electronic device, it causes the electronic device to perform the Transmission Configuration Indicator (TCI) state activation method as described in any one of claims 1-13, 14 or 15.

23. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program is used to implement the Transmission Configuration Indicator (TCI) state activation method as described in any one of claims 1-13, 14, or 15.

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