Communication method and apparatus

Abstract

A communication method and apparatus, which belong to the technical field of communications. The method comprises: measuring a beam corresponding to at least one event, so as to obtain a measurement result; and when an event a among the at least one event occurs, sending a first CSI report corresponding to the event a, wherein the first CSI report belongs to the measurement result, and the first CSI report comprises one or more fields. The reporting format of the first CSI report is applicable to event-triggered reporting. For example, the first CSI report may comprise fields from a first field to a sixth field, such that the format of the first CSI report is compatible with a plurality of CSI reports respectively triggered by a plurality of events. For another example, the first CSI report may flexibly comprise at least one of the fields from the first field to the sixth field, such that when there is no need to report information carried in certain fields, the transmission overhead of a CSI report can be reduced.

Description

Communication method and apparatus

[0001] This application claims priority to the Chinese Patent Application No. 202411393758.6, filed on September 30, 2024, and entitled "Communication method and apparatus", the content of which is incorporated herein by reference in its entirety.

[0002] In addition, this application also claims priority to the Chinese Patent Application No. 202411590913.3, filed on November 7, 2024, and entitled "Communication method and apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, and more particularly, to a communication method and apparatus. BACKGROUND

[0004] In wireless communication, in order to transmit and receive data, obtain system synchronization and feedback channel information, etc., a reference signal will be transmitted between the sending end and the receiving end. For example, the sending end sends a reference signal to the receiving end, and the receiving end receives the reference signal, and then can perform corresponding operations based on the reference signal, such as performing channel measurement and reporting a measurement report.

[0005] Currently, event-triggered measurement report reporting is introduced. Whether an event is met is judged by a terminal device, and then an event-related measurement report is sent. For example, the measurement report can be a channel state information (CSI) report.

[0006] How to design a CSI report reporting format suitable for event-triggered reporting is a problem to be solved. SUMMARY

[0007] The present application provides a communication method and apparatus, and the CSI report reporting format can be suitable for event-triggered reporting.

[0008] In a first aspect, a communication method is provided. The execution subject of the method provided in the first aspect can be a first apparatus. In the absence of special description, the first apparatus in the present application can refer to the terminal device itself, or can refer to a component (for example, a processor, a chip, or a chip system, etc.) in the terminal device, or can also refer to a logic module or software that can realize all or part of the terminal device function. For the convenience of description, the terminal device is taken as an example for description hereinafter.

[0009] For example, the chip can be a Modem chip, also known as a baseband chip. For another example, the chip can be a system on chip (SoC) chip or a system in package (SIP) chip including a modem core.

[0010] The method comprises: measuring a beam corresponding to at least one event to obtain a measurement result; when an event a in the at least one event occurs, sending a first CSI report corresponding to the event a, the first CSI report belonging to the measurement result, the first CSI report including one or more of the following fields: a first field for carrying first information used to determine a size relationship of signal quality of part or all of the L activated beams, L being a positive integer, or the first field being reserved; N second fields for carrying resource indexes of a serving beam or resource indexes of a new beam, N being a positive integer, and / or part or all of the N second fields being reserved; a third field for carrying a beam index of the first beam or a resource index of the serving beam, or the third field being reserved; N fourth fields for carrying signal quality information of the serving beam or signal quality information of the new beam, and / or part or all of the N fourth fields being reserved; a fifth field for carrying signal quality information of the first beam or signal quality information of the serving beam, or being reserved; or a sixth field for carrying information indicating the event a.

[0011] Based on the above scheme, the first CSI report corresponding to the event a can include one or more fields. The reporting format of the above first CSI report can be applicable to event-triggered reporting. For example, the first CSI report can include the first field to the sixth field, so that the format of the first CSI report can be compatible with multiple CSI reports triggered by multiple events (e.g., the first event to the third event) respectively. For another example, the first CSI report can flexibly include at least one of the first field to the sixth field, so that in the case of not needing to report information carried by some fields, the transmission overhead of the CSI report can be reduced.

[0012] In some implementations, the event a is the third event, and the first field is used to carry the first information; or the event a is the first event or the second event, and the first field is reserved.

[0013] In some implementations, the event a is the first event, one of the N second fields is used to carry a resource index of the serving beam, or one of the N second fields is used to carry a resource index of the serving beam, N-1 of the N second fields are reserved, or all of the N second fields are reserved; or the event a is the second event or the third event, the N second fields are respectively used to carry N resource indexes of the new beams, or Z of the N second fields are used to carry Z resource indexes of the new beams, N-Z of the N second fields are reserved, Z is a positive integer less than or equal to N.

[0014] In some implementations, the event a is the third event, the third field is used to carry a beam index of the first beam; or the event a is the first event or the second event, the third field is used to carry a resource index of the serving beam, or is reserved.

[0015] In some implementations, the event a is the first event, one of the N fourth fields is used to carry signal quality information of the serving beam, or one of the N fourth fields is used to carry signal quality information of the serving beam, N-1 of the N fourth fields are reserved, or all of the N fourth fields are reserved; or the event a is the second event or the third event, the N fourth fields are respectively used to carry N signal quality information of the new beams, the N signal quality information of the new beams correspond to N resource indexes of the new beams one by one, or Z of the N fourth fields are used to carry Z signal quality information of the new beams, N-Z of the N fourth fields are reserved, Z is a positive integer less than or equal to N, the Z signal quality information of the new beams correspond to Z resource indexes of the new beams one by one.

[0016] In some implementations, the event a is the first event, the fifth field is used to carry signal quality information of the serving beam, or is reserved; or the event a is the second event, and when the reporting of the serving beam or the signal quality information of the serving beam is configured to occur when the second event occurs, the fifth field is used to carry the signal quality information of the serving beam; or the event a is the second event, and when the reporting of the serving beam or the signal quality information of the serving beam is not configured to occur when the second event occurs, the fifth field is reserved; or the event a is the third event, the fifth field is used to carry signal quality information of the first beam, or is reserved.

[0017] In some implementations, the first CSI report includes the first field in a case that the at least one event includes a third event, and / or the first information is configured to be reported when the third event occurs.

[0018] In some implementations, the first CSI report includes the N second fields and the N fourth fields in a case that the at least one event includes a second event and / or a third event.

[0019] In some implementations, the first CSI report includes the third field in a case that at least one of the following conditions is met: the at least one event includes a first event; the at least one event includes the first event and the service beam or the resource index of the service beam is configured to be reported when the first event occurs; the at least one event includes a third event; or the at least one event includes the third event and the first beam or the beam index of the first beam is configured to be reported when the third event occurs.

[0020] In some implementations, the first CSI report includes the fifth field in a case that at least one of the following conditions is met: the at least one event includes a first event; the at least one event includes a second event and the service beam or the signal quality information of the service beam is configured to be reported when the second event occurs; the at least one event includes a third event; or the at least one event includes the third event and the first beam or the signal quality information of the first beam is configured to be reported when the third event occurs.

[0021] In some implementations, the first CSI report includes the sixth field in a case that the at least one event includes at least two events.

[0022] In some implementations, the N is a maximum value of a number of beams corresponding to part or all of the at least one event, wherein a number of beams corresponding to a first event is 0 or 1, a number of beams corresponding to a second event is a number of new beams to be reported when the second event occurs, and a number of beams corresponding to a third event is a number of new beams to be reported when the third event occurs.

[0023] Based on the above scheme, the N is a maximum value of a number of beams corresponding to part or all of the at least one event, so that the reporting content corresponding to part or all of the at least one event can be compatible.

[0024] In some implementations, the event a is a first event, the fifth field is configured to carry signal quality information of the serving beam, and the signal quality information of the serving beam is a signal quality of the serving beam; or the event a is a second event, and the second event is reported when the serving beam or the signal quality information of the serving beam is reported, the fifth field is configured to carry signal quality information of the serving beam, and the signal quality information of the serving beam is a difference between the signal quality of the serving beam and a first signal quality; or the event a is a third event, and the fifth field is configured to carry signal quality information of the first beam, and the signal quality information of the first beam is a difference between the signal quality of the first beam and the first signal quality; and the first signal quality is the best signal quality of the signal quality of the new beam carried by the N second fields.

[0025] Based on the above scheme, according to the reported event information (or the event), it can be determined whether the signal quality information carried by the fifth field is the signal quality information of the serving beam or the signal quality information of the first beam. The signal quality information of the first beam can be a difference between the best signal quality of the new beam and the signal quality of the first beam.

[0026] In some implementations, the event a is the first event, the length of the fifth field is Y bits, and Y is a positive integer; or the event a is the second event or the third event, and the length of the fifth field is X bits, and X is a positive integer; and Y is greater than X.

[0027] Based on the above scheme, the signal quality information of the first beam can be a difference between the best signal quality of the new beam and the signal quality of the first beam. The terminal device can use a smaller bit length to transmit the signal quality information of the first beam, thereby saving transmission overhead.

[0028] In some implementations, the at least one event is at least one of configured by a network device, activated by a network device, predefined, or preconfigured.

[0029] In some implementations, the at least one event includes at least one of a first event, a second event, or a third event; the first event is that the signal quality of the serving beam is lower than a first threshold; the second event is that there is at least one new beam whose signal quality is higher than the signal quality of the serving beam by a second threshold; and the third event is that there is at least one new beam whose signal quality is higher than the signal quality of the first beam by a third threshold.

[0030] In some embodiments, the first CSI report further comprises a seventh field and / or an eighth field; the seventh field is used to carry first indication information, the first indication information is used to indicate information of a new beam in the reported at least one new beam that satisfies the event condition of the event a; or the eighth field is used to carry second indication information, the second indication information is used to indicate information of a new beam in the reported at least one new beam that satisfies the event condition D times of the event a within the first time window, D being a positive integer.

[0031] In some embodiments, the first indication information comprises at least one of the following: indication information of a number of new beams in the at least one new beam indicated by the first CSI report that satisfy the event condition of the event a; a first bit bitmap used to indicate whether a new beam in the at least one new beam indicated by the first CSI report satisfies the event condition of the event a; or second information used to indicate a second beam, a signal quality of the second beam being less than a signal quality of a new beam in the at least one new beam indicated by the first CSI report other than the second beam and satisfying the event condition of the event a, the second beam satisfying the event condition of the event a.

[0032] In some embodiments, the second indication information comprises at least one of the following: a number of new beams in the at least one new beam indicated by the first CSI report that satisfy the event condition of the event a D times within the first time window; a second bit bitmap used to indicate whether a new beam in the at least one new beam indicated by the first CSI report satisfies the event condition of the event a; or third information used to indicate a third beam, a signal quality of the third beam being less than a signal quality of a new beam in the at least one new beam indicated by the first CSI report other than the third beam and satisfying the event condition of the event a, the third beam satisfying the event condition of the event a D times within the first time window.

[0033] In a second aspect, a communication method is provided. The execution subject of the method provided in the second aspect can be a second device. In the absence of special description, the second device in the present application can refer to a network device itself, a component (for example, a processor, a chip, or a chip system, etc.) in the network device, or a logic module or software capable of realizing all or part of the network device functions. For ease of description, the network device is taken as an example for description hereinafter.

[0034] The method comprises: receiving a first CSI report, the first CSI report being based on measurement results of beams corresponding to at least one event, the at least one event including event a, the event a being used to trigger sending of the first CSI report, the first CSI report including one or more of the following fields: a first field used to carry first information used to determine a size relationship of signal quality of part or all of activated L beams, L being a positive integer, or the first field being reserved; N second fields used to carry resource indexes of a serving beam or resource indexes of a new beam, N being a positive integer, and / or part or all of the N second fields being reserved, wherein the new beam is different from the serving beam, or the new beam is different from the L beams, or the new beam is different from a first beam, the first beam being a beam ranked Mth in signal quality among the L beams, M being a positive integer less than or equal to L; a third field used to carry a beam index of the first beam or a resource index of the serving beam, or the third field being reserved; N fourth fields used to carry signal quality information of the serving beam or signal quality information of the new beam, and / or part or all of the N fourth fields being reserved; a fifth field used to carry signal quality information of the first beam or signal quality information of the serving beam, or being reserved; or a sixth field used to carry information indicating the event a.

[0035] In a third aspect, a communication apparatus is provided, which includes processing circuitry (or processor) and input output interface (also referred to as interface circuitry), the input output interface being configured to input and / or output signals, and the processing circuitry being configured to perform the first aspect and any possible implementation of the first aspect, or the processing circuitry being configured to perform the second aspect and any possible implementation of the second aspect.

[0036] In some implementations, the processing circuitry is configured to communicate with other apparatuses via the interface circuitry, and perform the first aspect and any possible implementation of the first aspect, or the second aspect and any possible implementation of the second aspect.

[0037] In a fourth aspect, a communication apparatus is provided. The communication apparatus can include units, modules, or means for performing functions of the communication apparatus.

[0038] In some implementations, the communication apparatus can include modules, units, or means for performing the methods / operations / steps / actions described in the first aspect and any possible implementation of the first aspect, which can be hardware circuit, software, or a combination of hardware circuit and software.

[0039] In some embodiments, the communication apparatus comprises a processing unit and a transceiver unit. The processing unit is configured to measure beams corresponding to at least one event to obtain measurement results; and the transceiver unit is configured to send a first CSI report corresponding to an event a of the at least one event when the event a occurs, the first CSI report belonging to the measurement results, the first CSI report comprising one or more of the following fields: a first field configured to carry first information used to determine a size relationship of signal quality of part or all of the L activated beams, L being a positive integer, or the first field being reserved; N second fields configured to carry resource indexes of a serving beam or resource indexes of new beams, N being a positive integer, and / or part or all of the N second fields being reserved, wherein the new beams are different from the serving beam, or the new beams are different from the L beams, or the new beams are different from a first beam which is an Mth beam in the L beams in terms of signal quality, M being a positive integer less than or equal to L; a third field configured to carry a beam index of the first beam or a resource index of the serving beam, or the third field being reserved; N fourth fields configured to carry signal quality information of the serving beam or signal quality information of the new beams, and / or part or all of the N fourth fields being reserved; a fifth field configured to carry signal quality information of the first beam or signal quality information of the serving beam, or being reserved; or a sixth field configured to carry information indicating the event a.

[0040] In some embodiments, the event a is a third event, and the first field is configured to carry the first information; or the event a is a first event or a second event, and the first field is reserved.

[0041] In some embodiments, the event a is a first event, wherein one of the N second fields is configured to carry a resource index of the serving beam, or one of the N second fields is configured to carry a resource index of the serving beam, and N-1 of the N second fields are reserved, or all of the N second fields are reserved; or the event a is a second event or a third event, and the N second fields are respectively configured to carry resource indexes of N new beams, or Z of the N second fields are configured to carry resource indexes of Z new beams, and N-Z of the N second fields are reserved, Z being a positive integer less than or equal to N.

[0042] In some embodiments, the event a is a third event, and the third field is configured to carry a beam index of the first beam; or the event a is a first event or a second event, and the third field is configured to carry a resource index of the serving beam, or is reserved.

[0043] In some embodiments, the event a is the first event, one of the N fourth fields is used to carry the signal quality information of the serving beam, or one of the N fourth fields is used to carry the signal quality information of the serving beam, N-1 of the N fourth fields are reserved, or all of the N fourth fields are reserved; or the event a is the second event or the third event, the N fourth fields are respectively used to carry N signal quality information of the new beams, the N signal quality information of the new beams correspond to N resource indexes of the new beams in a one-to-one manner, or Z of the N fourth fields are used to carry Z signal quality information of the new beams, N-Z of the N fourth fields are reserved, Z is a positive integer less than or equal to N, and the Z signal quality information of the new beams correspond to Z resource indexes of the new beams in a one-to-one manner.

[0044] In some embodiments, the event a is the first event, the fifth field is used to carry the signal quality information of the serving beam, or is reserved; or the event a is the second event, and the fifth field is used to carry the signal quality information of the serving beam in a case where the second event is configured to report the serving beam or the signal quality information of the serving beam when the second event occurs; or the event a is the second event, and the fifth field is reserved in a case where the second event is not configured to report the serving beam or the signal quality information of the serving beam when the second event occurs; or the event a is the third event, and the fifth field is used to carry the signal quality information of the first beam, or is reserved.

[0045] In some embodiments, the first CSI report includes the first field in a case where the at least one event includes the third event and / or the third event is configured to report the first information when the third event occurs.

[0046] In some embodiments, the first CSI report includes the N second fields and the N fourth fields in a case where the at least one event includes the second event and / or the third event.

[0047] In some embodiments, the first CSI report includes the third field in a case where at least one of the following conditions is met: the at least one event includes the first event; the at least one event includes the first event and the first event is configured to report the serving beam or the resource index of the serving beam when the first event occurs; the at least one event includes the third event; or the at least one event includes the third event and the third event is configured to report the first beam or the beam index of the first beam when the third event occurs.

[0048] In some embodiments, the first CSI report includes the fifth field in at least one of the following cases: the at least one event includes the first event; the at least one event includes the second event, and the second event is configured to trigger reporting of the serving beam or the signal quality information of the serving beam; the at least one event includes the third event; or the at least one event includes the third event, and the third event is configured to trigger reporting of the first beam or the signal quality information of the first beam.

[0049] In some embodiments, when the at least one event includes at least two events, the first CSI report includes the sixth field.

[0050] In some embodiments, the value of N is the maximum of the number of beams corresponding to the events in the at least one event; wherein the number of beams corresponding to the first event is 0 or 1, the number of beams corresponding to the second event is the number of new beams to be reported when the second event occurs, and the number of beams corresponding to the third event is the number of new beams to be reported when the third event occurs.

[0051] In some embodiments, the event a is the first event, the fifth field is used to carry the signal quality information of the serving beam, and the signal quality information of the serving beam is the signal quality of the serving beam; or the event a is the second event, and the second event is configured to trigger reporting of the serving beam or the signal quality information of the serving beam, the fifth field is used to carry the signal quality information of the serving beam, and the signal quality information of the serving beam is the difference between the signal quality of the serving beam and a first signal quality; or the event a is the third event, the fifth field is used to carry the signal quality information of the first beam, and the signal quality information of the first beam is the difference between the signal quality of the first beam and the first signal quality; wherein the first signal quality is the best signal quality among the signal qualities of the new beams carried by the N second fields.

[0052] In some embodiments, the event a is the first event, the length of the fifth field is Y bits, and Y is a positive integer; or the event a is the second event or the third event, the length of the fifth field is X bits, and X is a positive integer; wherein Y is greater than X.

[0053] In some embodiments, the at least one event is at least one of configured by a network device, activated by a network device, predefined, or preconfigured.

[0054] In some embodiments, the at least one event includes at least one of a first event, a second event, or a third event; wherein the first event is that a signal quality of the serving beam is lower than a first threshold; the second event is that there is at least one new beam whose signal quality is higher than a signal quality of the serving beam by a second threshold; and the third event is that there is at least one new beam whose signal quality is higher than a signal quality of the first beam by a third threshold.

[0055] In some embodiments, the communication apparatus can include a module, unit or means for performing the method / operation / step / action described in the second aspect and any possible implementation manner of the second aspect, which can be hardware circuit, software or combination of hardware circuit and software.

[0056] In some embodiments, the communication apparatus includes a transceiver. The transceiver is configured to receive a first CSI report, the first CSI report being based on measurement results of beams corresponding to at least one event, the at least one event including an event a, the event a being used to trigger transmission of the first CSI report, the first CSI report including one or more of: a first field configured to carry first information used to determine a signal quality size relationship of part or all of the L activated beams, L being a positive integer, or the first field being reserved; N second fields configured to carry resource indexes of a serving beam or resource indexes of a new beam, N being a positive integer, and / or part or all of the N second fields being reserved, wherein the new beam is different from the serving beam, or the new beam is different from the L beams, or the new beam is different from a first beam, the first beam being a beam ranked Mth in signal quality among the L beams, M being a positive integer less than or equal to L; a third field configured to carry a beam index of the first beam or a resource index of the serving beam, or the third field being reserved; N fourth fields configured to carry signal quality information of the serving beam or signal quality information of the new beam, and / or part or all of the N fourth fields being reserved; a fifth field configured to carry signal quality information of the first beam or signal quality information of the serving beam, or being reserved; or a sixth field configured to carry information indicating the event a.

[0057] In a fifth aspect, a computer readable storage medium is provided, the computer readable storage medium having stored thereon computer programs or instructions which, when executed, cause the first aspect and any possible implementation manner of the first aspect to be performed (or implemented), or cause the second aspect and any possible implementation manner of the second aspect to be performed (or implemented).

[0058] In a sixth aspect, a computer program product is provided, which contains computer programs or instructions, when the computer programs or instructions are executed, cause the first aspect and any possible implementation of the first aspect to be performed (or implemented), or cause the second aspect and any possible implementation of the second aspect to be performed (or implemented).

[0059] In a seventh aspect, a communication apparatus is provided, which comprises a processor, configured to cause any possible implementation of the first aspect and any possible implementation of the second aspect to be performed (or implemented) by executing computer programs (or computer executable instructions) stored in the memory and / or through logical circuit.

[0060] In a possible implementation, the apparatus further comprises a memory. In a possible implementation, the processor and the memory are integrated together. In another possible implementation, the memory is located outside the communication apparatus. The processor can comprise one or more processors. In some possible implementations, the memory can be used to store part or all of the computer programs or instructions necessary for implementing the functions related to the first aspect. In some possible implementations, the memory can be used to store part or all of the computer programs or instructions necessary for implementing the functions related to the second aspect.

[0061] In a possible implementation, the communication apparatus further comprises a communication interface, configured to enable the communication apparatus to communicate with other devices, such as transmitting or receiving data and / or signals. Exemplarily, the communication interface can be a transceiver, a circuit, a bus, a module, an input / output interface or other types of communication interfaces.

[0062] In an implementation, the communication apparatus of the third aspect, the fourth aspect or the seventh aspect can be a terminal device or a communication module in the terminal device, or a chip or chip system in the terminal device.

[0063] In an implementation, the communication apparatus of the third aspect, the fourth aspect or the seventh aspect can be a network device or a communication module in the network device, or a chip or chip system in the network device.

[0064] In an eighth aspect, a chip is provided, comprising a processor, configured to invoke computer programs or computer instructions in a memory, so as to cause the processor to perform or implement any possible implementation of the first aspect, or to cause the processor to perform or implement any possible implementation of the second aspect.

[0065] In some implementations, the processor is coupled with the memory through an interface.

[0066] In a ninth aspect, a communication system including a first device and a second device is provided. The first device is configured to implement the first aspect and any possible implementation of the first aspect. The second device is configured to implement the second aspect and any possible implementation of the second aspect.

[0067] The description of the benefits of any of the second aspect to the ninth aspect can refer to the description of the benefits of the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0068] FIG. 1 is a schematic diagram of a structure of a MAC CE for activating a transmission configuration indicator (TCI).

[0069] FIG. 2 is a schematic diagram of a structure of TCI state activation signaling.

[0070] FIG. 3 is a schematic diagram of a communication system.

[0071] FIG. 4 is a schematic block diagram of another communication system.

[0072] FIG. 5 is a schematic block diagram of yet another communication system.

[0073] FIG. 6 is a schematic diagram of a functional split and protocol layer structure of an open radio access network (O-RAN) system.

[0074] FIG. 7 is a schematic diagram of a scenario of beam coarse alignment between a base station and a terminal device.

[0075] FIG. 8 is a schematic diagram of a procedure of beam coarse alignment between a base station and a terminal device.

[0076] FIG. 9 is a schematic diagram of a scenario of beam fine adjustment of a base station.

[0077] FIG. 10 is a schematic diagram of a procedure of beam fine adjustment of a base station.

[0078] FIG. 11 is a schematic diagram of a scenario of beam fine adjustment of a terminal device.

[0079] FIG. 12 is a schematic flowchart of a communication method according to an embodiment of the present disclosure.

[0080] FIG. 13 is a schematic diagram of a format of a CSI report according to an embodiment of the present disclosure.

[0081] FIG. 14 is a schematic diagram of another format of a CSI report according to an embodiment of the present disclosure.

[0082] FIG. 15 is a schematic block diagram of a communication device according to an embodiment of the present application.

[0083] FIG. 16 is a schematic diagram of another communication device according to an embodiment of the present application.

[0084] FIG. 17 is a schematic diagram of a chip system according to an embodiment of the present application.

[0085] FIG. 18 is a schematic diagram of another chip system according to an embodiment of the present application. DETAILED DESCRIPTION

[0086] In the present application, the terms and / or descriptions in different embodiments are consistent and can be referred to each other if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0087] In the present application, "at least one" means one or more, and "multiple" means two or more. "And / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the following cases: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. In the literal description of the present application, the character " / " generally represents an "or" relationship between the front and rear associated objects. "At least one of the following" or similar expressions means any combination of these items, including any combination of single item or multiple items. For example, at least one of a, b and c can represent: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c. Where a, b and c can be single or multiple.

[0088] In the present application, "first", "second", and various numerical numbers (for example, #1, #2, etc.) indicate the differentiation for the convenience of description, and are not used to limit the scope of the embodiments of the present application. For example, to distinguish different messages, etc., rather than to describe a specific order or sequence. It should be understood that the objects thus described can be interchanged under appropriate circumstances, so as to be able to describe schemes other than the embodiments of the present application.

[0089] In the present application, "when", "in the case of", "if" and other descriptions all mean that the device will make corresponding processing under certain objective circumstances, not limited to time, and also does not require the device to have a judgment action when implemented, nor does it mean that there are other limitations.

[0090] In the present application, “indication” or “for indicating” can include direct indication and indirect indication. When describing that certain indication information is used to indicate A, it can include that the indication information directly indicates A or indirectly indicates A, and it does not mean that A must be carried in the indication information.

[0091] The indication manner involved in the embodiments of the present application should be understood as covering various methods that can enable the to-be-indicated party to know the to-be-indicated information. The to-be-indicated information can be sent together as a whole, or can be sent separately into multiple sub-information, and the sending period and / or sending occasion of the sub-information can be the same or different, and the present application does not limit the sending method.

[0092] The “indication information” in the embodiments of the present application can be explicit indication, that is, directly indicated through signaling, or obtained according to the parameters indicated by the signaling, in combination with other rules or in combination with other parameters or through derivation. It can also be implicit indication, that is, obtained according to rules or relationships, or according to other parameters, or through derivation. The present application does not make specific limitations on this.

[0093] In the present application, “protocol” can refer to a standard protocol in the communication field, which can include, for example, a fifth generation (5 th generation,5G) protocol, a new radio (NR) protocol, and a related protocol applied in a future communication system, and the present application does not limit this. “Predefined” can include predefinition. For example, protocol definition. “Preconfigured” can be implemented by pre-storing corresponding code, table or other means that can be used to indicate related information in the device, and the present application does not limit the implementation manner thereof.

[0094] In the present application, “communication” can also be described as “data transmission”, “information transmission”, “data processing” and the like. “Transmission” includes “sending” and “receiving”. Exemplarily, the transmission can be uplink transmission, for example, the terminal device can send a signal to the network device; the transmission can also be downlink transmission, for example, the network device can send a signal to the terminal device; the transmission can also be sidelink transmission, for example, the terminal device can send a signal to another terminal device. Exemplarily, “transmission” can be air interface level transmission, or can be signal sending at chip input (I) / output (O) port, rather than air interface level transmission.

[0095] In the present application, “message”, “information”, “signal” or “information element (IE)” and the like can be used interchangeably, and the name of the message or information is not limited in any way, as long as the corresponding function can be implemented.

[0096] "Sending information to XX (device)" can be understood as that the destination of the information is the device. It can include sending information to the device directly or indirectly. "Receiving information from XX (device)" or "receiving information from XX (device)" can be understood as that the source of the information is the device, and it can include receiving information from the device directly or indirectly. The information can be processed between the source and the destination of the information transmission, for example, format change, etc., but the destination can understand the effective information from the source. Similar expressions in this application can be similarly understood, and will not be repeated here. In addition, "sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface. In other words, "sending" or "receiving" can be carried out between devices, for example, sending or receiving between network devices and terminal devices through the air interface, and "sending" or "receiving" can also be carried out within the device, for example, sending or receiving between components, modules, chips, software modules or hardware modules within the device through the bus, wire or interface.

[0097] In this application, the words "exemplarily", "such as" and the like are used to represent examples, illustrations or descriptions, and to present concepts in a specific way. Any embodiment or design scheme described as "example" in this application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. In the embodiments of this application, "of", "corresponding", "corresponding" and "associated" can be used interchangeably at times. It should be pointed out that when the distinction is not emphasized, the meanings expressed are consistent.

[0098] In this application, the configuration can be signaling configuration, which can also be described as configuration signaling. For example, the signaling configuration includes configuration by signaling sent by a network device, and the signaling can be a radio resource control (RRC) message, a downlink control information (DCI), or a system information block (SIB). For another example, the signaling configuration includes configuration between network devices. The network device can include an access network device, a core network device, or a management plane device, etc. Optionally, the signaling configuration can also be configuration to a terminal device or a network device by preconfigured signaling, or configuration to a terminal device or a network device by preconfiguration. Here, the preconfiguration is to define or configure the value of the corresponding parameter in advance in the protocol, and store it in the terminal device or the network device when communicating with the terminal device or the network device. The preconfigured message can be modified or updated under the condition that the terminal device or the network device is connected to the network.

[0099] The present application will present various aspects, embodiments or features around systems that can include a plurality of devices, components, modules, etc. Various systems can include devices, components, modules etc. other than those illustrated and / or can not include all of the devices, components, modules, etc. discussed in connection with the figures.

[0100] The business scenarios described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0101] In various embodiments of the present application, the size of the serial number of each process does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. The terms "include", "contain", "have" and their variants mean "include but not limited to", unless otherwise specifically emphasized.

[0102] In the embodiments of the present application, "less than" and "less than or equal to" can be replaced with each other; "greater than" or "greater than or equal to" can be replaced with each other.

[0103] In order to facilitate the understanding of the embodiments of the present application, first, the concepts that may be involved in the embodiments are exemplarily and simply introduced.

[0104] 1. Beam: A beam is a kind of communication resource.

[0105] The beam can also be referred to as a spatial domain filter, a spatial filter, a spatial domain parameter, a spatial parameter, a spatial domain setting, a spatial setting, quasi-colocation (QCL) information, a QCL assumption, or a QCL indication, etc.

[0106] The beam can be indicated by a transmission configuration indicator state (TCI-state) parameter, or indicated by a spatial relation parameter.

[0107] In embodiments of the present application, a beam can be replaced by a spatial filter, a spatial filter, a spatial domain parameter, a spatial parameter, a spatial domain setting, a spatial setting, QCL information, QCL assumption, QCL indication, TCI-state (for example, including uplink TCI-state, downlink TCI-state), or spatial relationship, etc. The above terms are also equivalent to each other. The beam can also be replaced by other terms representing the beam, which is not limited herein.

[0108] The beam used for transmitting a signal can be referred to as a transmission beam (Tx beam), a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, a spatial transmission parameter, a spatial domain transmission setting, or a spatial transmission setting.

[0109] The downlink transmission beam can be indicated by a TCI-state, a channel state information reference signal (CSI-RS), a synchronization signal / physical broadcast channel block (SS / PBCH block). Among them, the SS / PBCH block can be referred to as a synchronization signal block (SSB).

[0110] In embodiments of the present application, the downlink beam, the CSI-RS, the TCI-state, the downlink / joint TCI state (DLorjointTCI state), the SSB, and the tracking reference signal (TRS) can be replaced with each other.

[0111] A beam for receiving a signal can be referred to as a reception beam (Rx beam), a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter, a spatial reception parameter, a spatial domain reception setting, or a spatial reception setting. An uplink transmission beam can be indicated by any one of a spatial relationship, an uplink TCI-state, a sounding reference signal (SRS) resource (indicating a transmission beam using the SRS), a CSI-RS, an SSB, or a TRS. In embodiments of the present application, an uplink beam, an uplink (UL) TCI state, a DL or joint TCI state, an SRS, a CSI-RS, an SSB, and a TRS can be replaced with each other.

[0112] A transmission beam can refer to a distribution of signal strength in different directions in space after a signal is transmitted by an antenna, and a reception beam can refer to a distribution of signal strength in different directions in space of a wireless signal received by an antenna.

[0113] In addition, a beam can be a wide beam, or a narrow beam, or other types of beams, and the technology for forming a beam can be beamforming technology or other technical means. Beamforming technology can be digital beamforming technology, analog beamforming technology, and hybrid digital / analog beamforming technology. Different beams can be considered as different resources.

[0114] By way of example, a beam can correspond to a resource, for example, when performing beam measurement, a network device can measure different beams through different resources. A terminal device can feed back the quality of the measured resources, so that the network device knows the quality of the corresponding beam. When data transmission, beam information can also be indicated by its corresponding resource. For example, the network device indicates the information of the physical downlink shared channel (PDSCH) beam of the terminal device through the TCI field in the DCI.

[0115] In a possible implementation, multiple beams with the same or similar communication characteristics can be regarded as one beam. One beam can include one or more antenna ports for transmitting data channels, control channels, sounding signals, and the like. The one or more antenna ports forming one beam can also be regarded as one antenna port set.

[0116] In the embodiments of the present application, a beam refers to a transmitting beam of a network device if no specific description is made. In beam measurement, each beam of the network device corresponds to one resource, and therefore the beam corresponding to the resource can be uniquely identified by the index of the resource.

[0117] 2. TCI: TCI can also be referred to as a TCI state.

[0118] In uplink and downlink transmission, the correct beam is used between the network device and the terminal device, so as to achieve correct transmission. In downlink transmission, the network device can indicate the downlink transmitting beam used by the network device to the terminal device. The terminal device can determine a suitable receiving beam according to the downlink transmitting beam, and the receiving beam can be used to receive information from the network device. In uplink transmission, the network device also needs to indicate to the terminal device which uplink transmitting beam is used by the terminal device to send information to the network device. The network device can determine the uplink transmitting beam with better signal quality of the terminal device.

[0119] Both the uplink transmitting beam and the downlink transmitting beam can be indicated by a corresponding TCI state. Specifically, the downlink transmitting beam can be indicated by a downlink TCI state, and the uplink transmitting beam can be indicated by an uplink TCI state.

[0120] The network device can indicate the TCI state to the terminal device through the TCI field in the DCI. Exemplarily, the size of the TCI field can be 3 bits, which can be specifically represented as 8 different field values (codepoints). Each field value of the TCI field can be associated with an index of a TCI state. The index of the TCI state can uniquely identify a TCI state, which can be a downlink TCI state or an uplink TCI state. Each field value of the TCI field can also be associated with two TCI state indexes, which can uniquely identify two TCI states, and the two TCI states can include a downlink TCI state and an uplink TCI state.

[0121] The downlink TCI state can include a plurality of parameters, and the terminal device can determine the relevant information of the downlink transmitting beam through the parameters, so as to determine to use a suitable receiving beam to receive information from the network device. The downlink TCI state can be configured by the network device to each terminal device, and the structure of the downlink TCI state is as shown below:

[0122] Each TCI state can include one own index (tci-StateId) and two quasi-colocation information (QCL-info). Each QCL-Info can include one cell field and a bandwidth part (bwp)-identifier (Id), which respectively represent which bwp of which cell the TCI-state applies to, i.e., different cells or different bwps of the same cell can be configured with different QCL-Info. Each QCL-info can also include a referenceSignal, which indicates which reference signal resource forms a QCL relationship with.

[0123] In R15 / R16 protocol, the term "beam" generally does not appear directly, and the beam is generally replaced by other terms. For example, in data transmission and channel measurement, the beam is corresponding to the reference signal resource, and one beam corresponds to one reference signal resource. Therefore, here it is said that which reference signal resource forms a QCL relationship, which actually means which beam forms a QCL relationship. The QCL relationship means that two reference signal resources (or two antenna ports, where the antenna port and the reference signal resource can be one-to-one) have certain same spatial parameters. Which spatial parameters are the same depends on the type of the QCL-Info, i.e., another field qcl-Type of the QCL-Info. The qcl-Type can have four values {typeA, typeB, typeC, typeD}. Take typeD as an example, typeD can indicate that two reference signal resources have the same spatial reception parameter information, i.e., two beams have the same receiving beam. The two QCL-Info included in the TCI-state can at most have one typeD (or written as typeD).

[0124] Exemplarily, the network device can indicate a certain downlink TCI state for the terminal device through DCI. The terminal device can determine the reference signal resource in the typeD QCL information in the downlink TCI state. The terminal device can take the receiving beam of the reference signal resource as the receiving beam for downlink transmission.

[0125] Exemplarily, the receiving beam of the reference signal resource can be obtained by the terminal device in advance through the beam management process. For example, through the beam management process, the terminal device can determine which receiving beam is the best to receive the reference signal resource, and take the receiving beam as the receiving beam of the reference signal resource.

[0126] The following is a specific example to illustrate how the network device based on R15 / R16 protocol indicates the receiving beam information of the data transmission beam to the terminal device through TCI-state. The above process can include the configuration, activation and indication of TCI-state.

[0127] TCI-state configuration: The network device configures multiple TCI-states to the terminal device through RRC signaling. Each of these TCI-states includes a QCL-Info of type D. The network device can also configure TCI-states that do not include QCL-info of type D, but these TCI-states are not used for the indication of data transmission beams, so they are not further described here.

[0128] TCI-state activation: After the network device configures multiple TCI-states, it can activate 8 of them through a media access control control element (MAC CE or MAC-CE). These 8 TCI-states are one-to-one corresponding to the 8 field values of the TCI field in the DCI. That is, which 8 TCI-states correspond to the 8 field values of the TCI field in the DCI is determined by the MAC CE.

[0129] Figure 1 is a schematic diagram of a structure of a MAC CE (or referred to as TCI state activation signaling) for activating TCI states. Wherein the fields T0 to T(N-2)x8+7 respectively correspond to the respective TCI-states with indexes 0 to (N-2)x8+7 configured in the first step, each field has a size of 1 bit and the value can be 0 or 1. A value of 1 indicates that the TCI-state is activated, and a value of 0 indicates that the TCI-state is not activated. Each MAC CE can theoretically have 8 activation fields with a value of 1, and the rest are all 0. The 8 fields with a value of 1 correspond to the 8 TCI-states corresponding to the 8 values of the TCI field in the DCI. For example, the minimum value 000 of the TCI field corresponds to the TCI-state with the smallest index activated in the MAC CE, and so on. The MAC-CE has many types, in addition to the MAC-CE for TCI-state activation, there are many MAC-CEs for other purposes. This application only involves the MAC-CE for TCI-state / TCI-state combination activation. Therefore, unless otherwise specified, the MAC-CE described in this application refers to this type of MAC-CE. However, the structure of this MAC-CE can be the structure shown in Figure 1, or other structures, which are not limited by this application. In addition, the above-mentioned N is an integer greater than or equal to 2. For ease of description, the N that appears later in this application may not be the meaning of the N shown in Figure 1, please refer to the description later. In other words, without special instructions, the N that appears later in this application refers to the specific definition in the following.

[0130] TCI state indication: The network device can indicate a specific TCI-state through the TCI field in the DCI. For example, the field value of the TCI field in the DCI sent by the network device to the terminal device can be 000. "000" can indicate that the data transmission beam adopts the TCI state corresponding to 000. The reference signal contained in the QCL-Info of type typeD in the TCI state can be a CSI-RS with index #1, indicating that the beam used for data transmission is the same as the receiving beam corresponding to the CSI-RS with index #1. The receiving beam corresponding to the CSI-RS with index #1 can be determined through the beam measurement process and is known to the terminal device. Therefore, through the specific value of the TCI field, the terminal device can determine the beam corresponding to the data transmission beam, and thus transmit or receive data using the corresponding beam.

[0131] In this application, the three descriptions of TCI state, TCI-state and TCI state can be replaced with each other.

[0132] 3、Spatial relation (spatial relation)

[0133] Exemplarily, the transmission beam of the uplink transmission can be indicated by a spatial relation. The function of the spatial relation can be similar to the TCI-state, which is used to inform the terminal device to use which transmission beam to perform the uplink transmission.

[0134] Exemplarily, the spatial relation can be configured by RRC signaling. The information of the configured spatial relation can include the identification (id) of the spatial relation, the serving cell id, the target reference signal, the path loss measurement reference signal, or the power control parameter, etc. Among them, the target reference signal (such as SRS, SSB or CSI-RS) can be used to indicate the corresponding uplink beam. Exemplarily, assuming that the uplink transmission uses spatial relation #1, which includes target reference signal #2, it can represent that the transmission beam used for the uplink transmission is the transmission / reception beam of the target reference signal. For example, the target reference signal is SRS, which can represent that the transmission beam used for the uplink transmission is the transmission beam of the SRS (the transmission beam of the SRS is known). For another example, the target reference signal is SSB or CSI-RS, which can represent that the transmission beam used for the uplink transmission is the reception beam of the SSB or CSI-RS (the reception beam of the SSB / CSI-RS is known).

[0135] The network device can configure multiple spatial relations for the terminal device. Then one of them is activated by MAC CE for corresponding data transmission. The uplink transmission can include physical uplink control channel (PUCCH), SRS or physical uplink shared channel (PUSCH), etc. For example, the spatial relation of the PUCCH can be indicated by MAC-CE signaling. For another example, the spatial relation of the SRS can be indicated by MAC-CE signaling. For another example, the PUSCH can be associated with a specific SRS, and use the spatial relation of the SRS for transmission.

[0136] 4、Unified TCI

[0137] Unified TCI can be a unified beam indication framework. For example, a network device can indicate a terminal device with one beam, which can be used for multiple channels and / or reference signals at the same time, and the beam can also be referred to as a common beam. The common beam can be an uplink common beam, a downlink common beam, or an uplink-downlink common beam, which can be used by the terminal device in subsequent transmission.

[0138] The network device can indicate a terminal device with one uplink common beam for transmission of multiple uplink channels and / or uplink reference signals, or indicate the terminal device with one downlink common beam for transmission of multiple downlink channels and / or downlink reference signals, or indicate the terminal device with one uplink-downlink common beam for transmission of multiple uplink channels and / or uplink reference signals and multiple downlink channels and / or downlink reference signals. That is, the uplink-downlink common beam can be used for both uplink transmission and downlink transmission.

[0139] For example, in an embodiment of the present application, a beam can include the above-mentioned common beam.

[0140] In R17 and thereafter, a terminal can be configured with two TCI states: DLorjointTCI and UL TCI. For example, a UE can be configured with joint / DL TCI states (up to 128) and UL TCI states (up to 64) at the same time. For another example, in the configuration of a serving cell configuration (serving cell config) in RRC signaling, a base station can configure a UE to use a TCI mode in a joint mode or a separate mode. In the joint mode, one joint TCI state can be used for uplink and downlink transmission at the same time; in the separate mode, the base station needs to indicate DL TCI state and UL TCI state for uplink and downlink transmission, respectively. In an embodiment of the present application, joint / DL TCI and DLorjointTCI can be replaced with each other.

[0141] When a UE receives MAC-CE indication of TCI state activation signaling, the activation signaling includes the identification (ID) of the TCI state, and the UE determines which TCI state is activated by the MAC-CE according to the RRC configuration.

[0142] Figure 2 shows a diagram of a structure of TCI state activation signaling. The TCI state activation signaling can be a MAC-CE (or referred to as MAC CE activating TCI states, or referred to as unified TCI state activation / deactivation MAC CE). According to a Pi field (i is a positive integer less than or equal to 8), it can be determined whether each codepoint (codepoint) has one TCI state or multiple TCI states. For example, if Pi is 1, it indicates that the ith TCI codepoint contains one DL TCI state and one UL TCI state; if Pi is 0, it indicates that the ith TCI codepoint contains only one DL / joint TCI state or one UL TCI state. In this way, the UE can determine whether the TCI state ID of the same byte is the ID of the joint / DL TCI state or the ID of the UL TCI state according to the value of the D / L field. For example, 0 is specifically taken as the UL TCI state, and 1 is the joint / DL TCI state. The activated TCI state described hereinafter can be the TCI state corresponding to the TCI state ID indicated in the MAC CE signaling.

[0143] 5、Resource

[0144] In a communication protocol, a reference signal can be configured in the form of a resource. A network device can configure each reference signal in the form of a resource to a terminal device, and one resource is one configuration information unit. The configuration information unit can include parameters related to the reference signal, such as the time-frequency resource position of the reference signal, the number of ports, the time domain type (periodic / semi-static / non-periodic), and the like.

[0145] The resource can be an uplink signal resource or a downlink signal resource. The uplink signal (or referred to as uplink reference signal) includes but is not limited to SRS or demodulation reference signal (DMRS). The downlink signal (or referred to as downlink reference signal) includes but is not limited to: CSI-RS, cell-specific reference signal (CS-RS), user equipment-specific reference signal (US-RS), DMRS, TRS, and SS / PBCH block. Among them, the SS / PBCH block can be referred to as SSB.

[0146] 6、Reference signal

[0147] The reference signal can be a reference signal of a serving cell, for example, the serving cell can be a primary cell (Pcell), a secondary cell (Scell), or a primary secondary cell (PScell). Among them, the Pcell can be referred to as a cell of a primary component carrier (PCC), and the Scell can be referred to as a cell of a secondary component carrier (SCC).

[0148] The reference signal can be a reference signal of a neighboring cell of the serving cell (such as a cell corresponding to an additional physical cell identifier (additional PCI)).

[0149] The reference signal can also be a reference signal associated with a handover candidate cell configuration. The handover candidate cell can also be referred to as a candidate cell or a neighboring cell, and the handover candidate cell can be a current serving cell or a non-serving cell, and the physical cell identity (PCI) of the handover candidate cell is different from that of the current primary cell (PCell).

[0150] The terminal device can be configured with one or more candidate cell configurations, and each candidate cell configuration can include a configuration of a reference signal resource, which can be an SSB or a CSI-RS.

[0151] 7. Reporting of measurement reports: According to the reporting time domain configuration behavior, the network device can configure three measurement report reporting (also referred to as beam reporting, or beam measurement result reporting, or CSI reporting, or traditional CSI reporting based on beam management, or non-event triggered reporting) procedures: periodic reporting, semi-persistent reporting, and aperiodic reporting. Semi-persistent reporting is also referred to as semi-static reporting.

[0152] Periodic reporting: The network device sends reference signal resource configuration information to the terminal device. The reference signal resource configuration information includes periodic reference signal resources. The network device configures the terminal device to periodically measure the reference signal. The terminal device can measure the reference signal based on the reference signal resource configuration information, and periodically report the measurement results. Optionally, the measurement results obtained by the terminal device for the periodic measurement of the reference signal can be carried on the PUCCH resource.

[0153] Semi-persistent reporting: the terminal device measures the reference signal periodically, but reports the measurement result in a semi-persistent manner. In one possible implementation, the network device sends the terminal device reference signal resource configuration information. The reference signal resource configuration information includes periodic reference signal resources. The network device configures the terminal device to measure the reference signal periodically. When the terminal device receives the activation signaling (e.g., MAC CE or DCI) from the network device, the terminal device can continuously report the measurement result. Of course, the network device can also send the terminal device a deactivation instruction, thereby deactivating the terminal device's semi-persistent reporting process. In another possible implementation, both the measurement of the reference signal and the reporting of the measurement result are semi-persistent. When the terminal device receives the activation signaling from the network device, the terminal device continuously measures the reference signal and reports the measurement result. When the terminal device receives the deactivation instruction from the network device, the terminal device stops reporting the measurement result. In addition, the measurement result can be carried on a PUCCH resource or a PUSCH resource.

[0154] Aperiodic reporting: when the terminal device receives a trigger instruction from the network device, the terminal device measures the reference signal and reports the measurement result. After completing the reporting, the terminal device stops reporting the measurement result. Optionally, the reference signal can be a periodic reference signal, a semi-persistent reference signal, or an aperiodic reference signal. Optionally, the measurement result is carried on a PUSCH resource.

[0155] 8. Reference signal associated with TCI state: The reference signal associated with the TCI state can be the reference signal corresponding to the beam corresponding to the TCI state. The beam corresponding to the TCI state or the beam associated with the TCI state can be the beam corresponding to the reference signal associated with the TCI state. The reference signal associated with the TCI state can be the QCL type D reference signal of the TCI state, or the reference signal associated with the QCL type D reference signal of the TCI state. The QCL type D reference signal of the TCI state is the reference signal with qcl-Type as type D in the QCL-info in the TCI state. The reference signal associated with the QCL type D reference signal of the TCI state: the SSB having a QCL relationship with the QCL type D reference signal. The SSB is the SSB corresponding to the source QCL resource of the QCL chain. That is, the source QCL resource is the SSB resource. The QCL chain is determined according to the QCL type D reference signal of the TCI state. For example, the network device indicates the QCL resource of the TCI state as a CSI-RS resource. The QCL resource in the TCI state corresponding to the CSI-RS resource is a TRS resource. The TCI state corresponding to the CSI-RS resource can be understood as the TCI state adopted by the network device for transmitting the CSI-RS resource, or the TCI state adopted by the network device for transmitting the TRS corresponding to the CSI-RS. Therefore, it can be known that the QCL resource (such as the CSI-RS resource) in the TCI state indicated by the network device for the terminal device, the QCL resource (such as the TRS resource) in the TCI state corresponding to the CSI-RS resource, and the QCL resource (such as the SSB resource) in the TCI state corresponding to the TRS resource constitute a QCL chain. The source QCL resource of the QCL chain is the SSB resource, and therefore the reference signal associated with the QCL type D reference signal of the TCI state is the SSB corresponding to the SSB resource. An example, the QCL type D reference signal of the TCI state is a TRS, the TRS corresponds to one or more CSI-RS or is composed of one or more CSI-RS, and the reference signal associated with the TCI state can be understood as one of the one or more CSI-RS, for example, the first or last CSI-RS in the one or more CSI-RS.

[0156] The technical solutions of the embodiments of the present application can be applied to various communication systems, including but not limited to: long term evolution (LTE) system, NR system, etc. fifth generation (5 thThe mobile communication system can be a 5th generation (5G) mobile communication system, a narrow band internet of things (NB-IoT) system, an enhanced machine-type communication (eMTC) system, an enhanced mobile broadband (eMBB) system, an ultra reliable low latency communications (URLLC) system, a satellite communication system, an LTE-machine-to-machine (LTE-M) system, or a system evolved from the 5G system, such as a future mobile communication system, etc.

[0157] The technical solutions in the present application will be described below with reference to the drawings.

[0158] FIG. 3 is a schematic diagram of a communication system 100. As shown in FIG. 3, the communication system 100 includes a radio access network 110 and a core network 120. Optionally, the communication system 100 can also include an Internet 130. The radio access network 110 can include at least one network device (e.g., 111a and 111b in FIG. 3) and at least one terminal device (e.g., 112a-112j in FIG. 3). The terminal devices are connected to the network devices in a wireless manner. The network devices are connected to the core network 120 in a wireless or wired manner. The core network 120 can include one or more core network devices. The core network devices and the network devices can be independent and different physical devices, or the functions of the core network devices and the logical functions of the network devices can be integrated on the same physical device, or a physical device can integrate the functions of part of the core network devices and the functions of part of the network devices. The terminal devices and the terminal devices, and the network devices and the network devices can be connected to each other in a wired or wireless manner. The terminal devices and the terminal devices, the network devices and the network devices, and the terminal devices and the network devices can communicate with each other in a wireless manner through air interface resources. Exemplarily, the air interface resources can include at least one of time domain resources, frequency domain resources, code resources, and space resources. FIG. 3 is only a schematic diagram, and the communication system 100 can also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 3.

[0159] The network device can also be referred to as an access network device or an access network node. It can be understood that the name of the device with the function of the network device can be different in systems with different wireless access technologies. For the convenience of description, the apparatuses providing wireless communication access functions for terminal devices in the embodiments of the present application are collectively referred to as base stations. In the embodiments of the present application, the network device includes but is not limited to various forms of macro base stations (such as 111a in FIG. 3), micro base stations or indoor stations (such as 111b in FIG. 3), pico base stations, small stations, balloon stations, relay stations, access points, etc. Among them, the micro base station can be referred to as a small station. The network device can include an evolved node B (eNB or eNodeB) in LTE, a radio controller in a cloud radio access network (CRAN) scenario, a network device in a future evolved public land mobile network (PLMN), an access point (AP) in a wireless fidelity (WiFi) system, a wireless relay node, a wireless backhaul node, a transmission point (TP), or a transmission reception point (TRP) or transmit / receive point (TRP or TP), etc., and can also include a next generation base station node (gNB) or transmission point (TRP or TP) in a 5G system, one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DU), and can also include a network device, server, wearable device or vehicle-mounted device, etc. in a network in a future mobile communication system and the like after 5G. The network device can also be a module or unit that completes the function of the base station, for example, it can be a centralized unit (CU) or a DU. In addition, the network device can be understood as the general term of all devices (including stations) on the network side, for example, a plurality of stations can be collectively referred to as a network device. The station refers to a transmission node that is actually located at a physical location. In other words, the network device conceptually contains the station.

[0160] In the embodiments of the present application, the apparatus for implementing the function of the network device can be the network device itself, or an apparatus capable of supporting the network device to implement the function, such as a chip system or a chip, which can be installed in the network device. The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0161] In another possible scenario, a plurality of network devices cooperate to assist a terminal to implement wireless access, and different network devices respectively implement part of functions of a base station. For example, a network device can be a CU, a DU, a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element, for example, in a BBU. The RU can be included in a radio frequency device or a radio frequency unit, for example, in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0162] In different systems, the CU (or CU-CP and CU-UP), the DU, or the RU can also have different names, but those skilled in the art can understand their meanings. For example, in an O-RAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, the CU-CP, the CU-UP, the DU, and the RU are taken as examples for description in this application. Any one of the CU (or the CU-CP, the CU-UP), the DU, and the RU in this application can be implemented by means of a software module, a hardware module, or a combination of a software module and a hardware module. The embodiments of this application do not limit the specific technology and the specific device form adopted by the network device.

[0163] The terminal device can be a device providing voice and / or data connectivity to users; the terminal device can also be a device having wireless connection function. The terminal device can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on water surface (such as ships, etc.); can also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal device can also be called user equipment (UE), access terminal, terminal, subscriber unit, user station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, wireless network device, user agent or user apparatus. In the embodiments of the present application, the terminal device includes but is not limited to: cellular phone, mobile phone, wireless data card, wireless modem, pad, laptop computer, notebook computer, palm computer, mobile internet device (MID), computer with wireless transceiver function, cordless phone, session initiation protocol (SIP) phone, smart phone, wireless local loop (WLL) station, personal digital assistant (PDA), handset with wireless communication function, computing device or other device connected to wireless modem, vehicle-mounted device (such as car, bicycle, electric vehicle, airplane, ship, train, high-speed rail, etc.), wearable device (such as smart watch, smart bracelet, pedometer, smart glasses, etc.), satellite terminal, terminal device in Internet of Things or Internet of Vehicles, and any form of terminal in future network, relay user equipment or terminal in future evolved PLMN, etc.The terminal device can also be a virtual reality (VR) device, an augmented reality (AR) device, a smart point of sale (POS) machine, a customer-premises equipment (CPE), a light UE, a reduced capability UE (RedCap UE), a machine type communication (MTC) terminal, a terminal device in industrial control, a terminal device in self driving, a terminal device in remote medical treatment, a terminal device in a smart grid, a wireless terminal in transportation safety, a terminal device in a smart city, a terminal device in a smart home, a haptic terminal device, a smart home device (e.g., a refrigerator, a television, an air conditioner, an electricity meter, etc.), a smart robot, a mechanical arm, a plant device, a wireless terminal in self driving, or a flight device (e.g., a smart robot, a hot air balloon, a drone, an airplane), and the like. The terminal device can also be a vehicle device, such as a transport vehicle with wireless communication function, a communication module, a whole vehicle device, a vehicle-mounted module, a vehicle-mounted chip, an on board unit (OBU), or a telematics box (T-BOX), and the like. The terminal device can also be other devices with terminal functions, for example, the terminal device can also be a device in device to device (D2D) communication that assumes a terminal function. The embodiments of the present application are not limited in this regard.

[0164] In the embodiments of the present application, the device for implementing the function of the terminal device can be a terminal device, or a device capable of supporting the terminal device to implement the function, such as a chip or a chip system, which can be installed in the terminal device. The chip system can be composed of a chip, or can include a chip and other discrete devices. In the technical solutions of the embodiments of the present application, the device for implementing the function of the terminal device is taken as an example of the terminal device. The terminal device can also be referred to as a terminal. The following can take the terminal device as an example of a UE to describe the technical solutions provided by the embodiments of the present application.

[0165] The roles of the base station and the terminal can be relative, for example, the helicopter or the drone 112i in FIG. 3 can be configured as a mobile base station, and for those terminals 112j accessing the wireless access network 110 through 112i, the terminal 112i is a base station; but for the base station 111a, 112i is a terminal, that is, 111a communicates with 112i through a wireless air interface protocol. Of course, 111a and 112i can also communicate through a base station-to-base station interface protocol, in which case, 112i is also a base station relative to 111a. Therefore, the base station and the terminal can be collectively referred to as a communication device, and 111a and 111b in FIG. 3 can be referred to as a communication device with a base station function, and 112a-112j in FIG. 3 can be referred to as a communication device with a terminal function.

[0166] The network device and the terminal device can communicate through a wireless link. The transmission link from the network device to the terminal device can be referred to as a downlink (DL) or a downlink channel, for transmitting a downlink signal. The transmission link from the terminal device to the network device can be referred to as an uplink (UL) or an uplink channel, for transmitting an uplink signal. The transmission link from the terminal device to the terminal device can be referred to as a sidelink (SL) or a sidelink channel. In the embodiments of the present application, multiple network devices can send information to multiple different terminal devices and receive information from multiple different terminal devices; multiple network devices can also send information to the same terminal device and receive information from the same terminal device, which is not limited in the present application.

[0167] The communication between different devices involved in the embodiments of the present application can mean direct communication between different devices (i.e., without the need for other devices to transfer or forward), or can mean communication between different devices through other devices (i.e., with the need for other devices to transfer or forward), or can mean that a functional unit inside a device communicates with other devices through another functional unit. The information between the source and the destination of the information transmission can be processed as necessary, such as format change, digital-to-analog conversion, amplification, or filtering, etc., but the destination can understand the valid information from the source. Similar expressions in the present application can be understood similarly, and will not be repeated here.

[0168] FIG. 4 is a schematic block diagram of another communication system. FIG. 4 takes the communication between a terminal device and a network device as an example.

[0169] As shown in FIG. 4, the terminal device 210 can include a processor 211, a memory 212, and a transceiver 213. Exemplarily, the transceiver 213 can include a transmitter 2131, a receiver 2132, and an antenna 2133. The network device 220 can include a processor 221, a memory 222, and a transceiver 223. Exemplarily, the transceiver 223 can include a transmitter 2231, a receiver 2232, and an antenna 2233. The receiver 2132 can be configured to receive information from the network device 220 through the antenna 2133, and the transmitter 2131 can be configured to send information to the network device 220 through the antenna 2133. The transmitter 2231 can be configured to send information to the terminal device 210 through the antenna 2233, and the receiver 2232 can be configured to receive information from the terminal device 210 through the antenna 2233.

[0170] The network device in the embodiments of the present application can include a chip in the network device. For example, the network device can include the processor 221, the memory 222, and the transceiver 223. The terminal device in the embodiments of the present application can include a chip in the terminal device. For example, the terminal device can include the processor 211, the memory 212, and the transceiver 213.

[0171] FIG. 5 is a schematic block diagram of another communication system. FIG. 5 shows an O-RAN system. The O-RAN system in the present application can include other components than those shown in FIG. 5, or can only include part of the components in FIG. 5.

[0172] Referring to FIG. 5, the network device can communicate with the core network device through a backhaul link 310, and communicate with the terminal device through an air interface. Exemplarily, the BBU in the network device can communicate with the core network device through the backhaul link 310. The RU in the network device can communicate with at least one terminal device through an air interface. The BBU can communicate with at least one RU through a front-haul link 330. Wherein, the BBU and the RU can be co-located or not. Exemplarily, the BBU can include at least one CU and at least one DU. The CU and the DU can communicate through at least one mid-haul link 320.

[0173] FIG. 6 is a schematic diagram of network element function division and protocol layer structure of an O-RAN system. The O-RAN system in the embodiments of the present application can divide the network element function and the protocol layer in part or all of the manners shown in FIG. 6, or in other manners.

[0174] In some examples, the CU can be used to carry logical nodes of an RRC layer, a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, and other control functions of the access network device. Illustratively, the CU can be connected to network nodes such as a core network through some interfaces, for example, the interfaces can include an E2 interface and the like. Optionally, the CU has part of the functions of the core network.

[0175] Illustratively, the CU (e.g., a PDCP layer or a layer higher than PDCP) is connected to the DU (e.g., a radio link control (RLC) layer or a layer lower than RLC) through some interfaces, for example, the interfaces can be an F1 interface and the like. In some examples, the above-mentioned interface (e.g., the F1 interface) can provide CP and UP functions, for example, interface management, system information management, UE context management, RRC message transmission, and the like. The F1 interface can adopt an F1 application protocol (F1AP).

[0176] In some examples, the CU can be split into a CU-CP and a CU-UP.

[0177] The CU-CP can be used to carry logical nodes of an RRC layer and a PDCP control plane part (PDCP-C) layer, for implementing control plane functions of the CU. The CU-CP can interact with network elements in the core network for implementing control plane functions. Illustratively, the network element in the core network for implementing control plane functions can be an access and mobility function network element, for example, an access and mobility management (AMF) in a 5G system. Illustratively, the AMF network element can be used to be responsible for mobility management in a mobile network, such as location updating of a terminal device, registration of the terminal device to a network, handover of the terminal device, and the like.

[0178] The CU-UP can be used to carry logical nodes of an SDAP layer and a PDCP user plane part (PDCP-U) layer, for implementing user plane functions of the CU. The CU-UP can interact with network elements in the core network for implementing user plane functions. For example, a user plane function (UPF) in a 5G system can be used to be responsible for forwarding and receiving data in a terminal device.

[0179] The configuration of the above CU or DU is merely an example, and the CU or DU can be configured to have functions as needed. For example, the CU or the DU can be configured to have more protocol layer functions, or the CU or the DU can be configured to have partial processing functions of the protocol layer. For example, partial functions of the RLC layer and functions of the protocol layer above the RLC layer are arranged in the CU, and the remaining functions of the RLC layer and functions of the protocol layer below the RLC layer are arranged in the DU. For another example, the functions of the CU or the DU can be divided according to a service type or other system requirements, for example, according to a delay requirement. For example, functions that require to meet a shorter delay requirement in processing time are arranged in the DU, and functions that do not require to meet the delay requirement are arranged in the CU.

[0180] In some examples, the DU can be used to carry logical nodes of the RLC layer, the medium access control (MAC) layer, the higher physical (Higher PHY) layer, and other functions. In some examples, the DU can control at least one RU. For example, the DU can be connected to the RU through some interfaces, which can be a front-haul interface. In some examples, the Higher PHY layer can include part of the PHY layer processing, such as forward error correction (FEC) encoding, decoding, scrambling, modulation, or demodulation, and other processing functions.

[0181] In some examples, the RU can be used to carry logical nodes of the lower physical (Lower PHY) layer and radio frequency (RF) chain processing. In some examples, the RU can be a TRP, an RRH, or other similar functional entity in the third generation partnership project (3 rd generation partnership project,3GPP). In some examples, the Low PHY layer includes part of the PHY processing, such as fast Fourier transform (FFT), inverse fast Fourier transformation (IFFT), digital beamforming or filtering, and other processing functions. The RU can communicate with one or more UEs through a wireless link.

[0182] The DU and the RU can or can not be co-located. For example, the DU and the RU can exchange control plane and user plane information via a lower-layer split control / user / synchronization-plane (LLS-C / U / S) interface over a fronthaul link. For example, the O-RAN CUS plane in the DU can communicate with the O-RAN CUS plane in the RU over the LLS-C / U / S interface. Illustratively, the LLS-C / U / S can include a LLS-control (C) interface and a LLS-user (U) interface that provide CP and UP, respectively. In some examples, the CP can refer to real-time control between the DU and the RU. Management information can be exchanged between the DU and the RU over a LLS-management (M) interface of the fronthaul link, and the M plane can refer to non-real-time management operations between the DU and the RU. For example, the O-RAN M plane in the DU can communicate with the O-RAN M plane in the RU over the LLS-M interface. For another example, the O-RAN M plane in the DU or the RU can communicate with a management system over the LLS-M interface.

[0183] The DU and the RU can cooperate with each other to jointly implement the functions of the PHY layer. For example, one DU can be connected to one or more RUs. The functions of the DU and the RU can be configured in multiple ways according to design. For example, the DU can be configured to implement baseband functions, and the RU can be configured to implement mid- radio frequency functions. For another example, the DU is configured to implement high-layer functions (e.g., high PHY) in the PHY layer, and the RU is configured to implement low-layer functions (e.g., low PHY) in the PHY layer or implement the low-layer functions and radio frequency functions (e.g., RF chains). The high-layer functions in the PHY layer can include a part of the functions of the PHY layer that are closer to the MAC layer, and the low-layer functions in the PHY layer can include another part of the functions of the PHY layer that are closer to the mid-radio frequency side.

[0184] The 5th generation (5G) mobile communication system can use high frequency communication, i.e., use ultra-high frequency band (such as 28 GHz) to transmit data. One major problem of high frequency communication is that the signal energy sharply decreases with the transmission distance, resulting in a short transmission distance. To overcome this problem, high frequency communication uses analog beam technology, which concentrates signal energy in a small angle range by weighting processing of an antenna array, forming a signal similar to a light beam (called an analog beam, simply referred to as a beam), thereby improving the transmission distance. Both network devices and terminal devices need to use beams for transmission. When performing uplink and downlink data transmission, specific beams need to be used.

[0185] Currently, a terminal device and a network device select a proper beam through a beam management procedure and communicate through the selected beam. The beam management procedure can include beam coarse alignment based on SSB first and beam fine adjustment based on CSI-RS. The beam management procedure can be divided into three stages, which are introduced below with the network device being a base station as an example.

[0186] Stage one: beam coarse alignment between the base station and the terminal device. In stage one, the base station beam and the terminal beam can be understood as wide beams.

[0187] In stage one, the base station can perform beam sweeping. For example, as shown in FIG. 7, the base station can send SSBs to the terminal device through beams in different directions at different times. At the same time, the terminal device sweeps the receiving beam, that is, the terminal device also receives SSBs from the network device through beams in different directions at different times. The terminal device determines the optimal beam for the base station to send signals and the optimal beam for the terminal device to receive signals according to the received signal strength. The beam for the base station to send signals is referred to as a base station beam, and the beam for the terminal device to receive signals is referred to as a terminal beam.

[0188] Optionally, as shown in FIG. 8, the base station first sends SSB resource configuration information and reporting resource configuration information to the terminal device. In some examples, the SSB resource configuration information and the reporting resource configuration information can be carried in RRC signaling. For example, the SSB resource can be configured by the CSI resource configuration (CSI-ResourceConfig) in the RRC signaling. Each configuration can contain one CSI-SSB resource set (CSI-SSB-ResourceSet), and each set can contain up to 64 SSB resources. For example, the reporting resource can be configured by the CSI reporting configuration (CSI-ReportConfig) in the RRC signaling. The configuration content can include the time-frequency domain resource of the reporting feedback, the content of the reporting, and the like.

[0189] In the case where the base station has established an RRC connection with the terminal device, the base station can configure the SSB resource configuration information and the reporting resource configuration information through RRC signaling. In the case where the base station has not established an RRC connection with the terminal device, the base station can send SSBs to the terminal device through predefined SSB resources. The base station beam can include The terminal beam can include For example, the i-th (i = 0, 1, …, M-1) SSB base station uses beam B m and the terminal uses beam U n where n M+m = mod(i, MN). The "mod" can represent the modulus.

[0190] For example, referring to FIG. 8, it is assumed that the base station beams include beams B0 to B15, that is, M = 16; it is assumed that the terminal beams include beams U0 to U3, that is, N = 4. The base station can transmit SSBs to the terminal device through corresponding SSB resources using beams B0, transmit SSBs to the terminal device using beams B1, and so on, transmit SSBs to the terminal device using beams B15. The terminal device measures the SSBs transmitted by the base station through beams B0 to B15 respectively through beams U0 to U3 respectively, and obtains measurement results. 15 that is, M = 16; it is assumed that the terminal beams include beams U0 to U3, that is, N = 4. The base station can transmit SSBs to the terminal device through corresponding SSB resources using beams B0, transmit SSBs to the terminal device using beams B1, and so on, transmit SSBs to the terminal device using beams B15. The terminal device measures the SSBs transmitted by the base station through beams B0 to B15 respectively through beams U0 to U3 respectively, and obtains measurement results. 15 that is, M = 16; it is assumed that the terminal beams include beams U0 to U3, that is, N = 4. The base station can transmit SSBs to the terminal device through corresponding SSB resources using beams B0, transmit SSBs to the terminal device using beams B1, and so on, transmit SSBs to the terminal device using beams B15. The terminal device measures the SSBs transmitted by the base station through beams B0 to B15 respectively through beams U0 to U3 respectively, and obtains measurement results. 15 that is, M = 16; it is assumed that the terminal beams include beams U0 to U3, that is, N = 4. The base station can transmit SSBs to the terminal device through corresponding SSB resources using beams B0, transmit SSBs to the terminal device using beams B1, and so on, transmit SSBs to the terminal device using beams B15. The terminal device measures the SSBs transmitted by the base station through beams B0 to B15 respectively through beams U0 to U3 respectively, and obtains measurement results.

[0191] The terminal device can determine the base station beam with better or best signal quality through the measurement results. The terminal device feeds back the base station beam with better or best signal quality to the network device.

[0192] Exemplarily, according to before and after the RRC connection establishment of the base station and the terminal device, two cases can be divided.

[0193] Before the RRC connection establishment, the SSB can carry a master information block (MIB). The MIB can indicate a channel resource carrying a SIB1. The base station can indicate a mapping relationship between one SSB and a random access channel occasion (RO) through the SIB1 message. The terminal device can perform random access through a physical random access channel (PRACH) resource corresponding to the optimal base station beam, so that the base station can obtain the optimal base station beam information.

[0194] After the RRC connection establishment, the terminal device can feed back according to a reporting resource configured in the RRC signaling.

[0195] Stage two: base station beam fine adjustment.

[0196] The base station can determine a plurality of candidate beams according to the base station beam with better or best signal quality (which can also be referred to as the optimal base station beam) determined in stage one, and each candidate beam can be a narrow beam. The base station can perform scanning through a CSI-RS, and the terminal device can perform receiving through the receiving beam selected in stage one (or referred to as the optimal terminal beam), so as to perform fine adjustment on the base station beam.

[0197] For example, it is assumed that the optimal terminal beam selected by the terminal device in stage one is U1. The candidate beams determined by the base station can include wherein K can be less than M, may be A subset of the K beams. For example, assume K = 3.

[0198] Exemplarily, as shown in FIG. 9, the plurality of candidate beams can include beams S0 to S2. Assume that the phase one determines the beam B3, which can be a wide beam. The base station can determine beams S0 to S2 according to the beam B3.

[0199] Exemplarily, as shown in FIG. 10, the base station can send CSI-RS configuration information to the terminal device. The CSI-RS configuration information can be used to configure CSI-RS resources and feedback reporting resources. For example, the CSI-RS resources can be configured by the information element CSI-ResourceConfig in the RRC signaling. For another example, the feedback reporting resources can be configured by the base station through the information element CSI-ReportConfig in the RRC signaling.

[0200] The base station can send CSI-RS in sequence, wherein the jth CSI-RS can use the beam S j . Wherein j = 0, 1, …, K-1. The terminal device uses the beam U1 to receive.

[0201] For example, the base station sends CSI-RS to the terminal device through the corresponding CSI-RS resources using the beam S0, sends CSI-RS to the terminal device through the corresponding CSI-RS resources using the beam S1, and sends CSI-RS to the terminal device through the corresponding CSI-RS resources using the beam S2. The terminal device receives the CSI-RS sent by the base station through different beams through the beam U1 to obtain measurement results. The terminal device can determine the candidate beam with better or best signal quality through the measurement results. The terminal device feeds back the candidate beam with better or best signal quality to the network device. For example, assume that the candidate beam with better or best signal quality is the beam S1. The base station can use the beam S1 as the beam for communication with the terminal device.

[0202] Phase three: terminal device beam fine adjustment.

[0203] The base station can send CSI-RS using the optimal beam obtained in phase two, and the terminal device scans the beam to determine the optimal terminal beam, thereby completing beam alignment. The following only briefly exemplarily introduces.

[0204] Exemplarily, the base station transmits the CSI-RS to the terminal device by using a beam S1, and the terminal device determines an optimal terminal beam as a beam U1 by using the first stage. The beam U1 is a wide beam. The terminal device determines a plurality of candidate beams by using the beam U1, and the plurality of candidate beams include a beam P1 to a beam P4 as shown in FIG. 11. The terminal device receives the CSI-RS transmitted by the base station by using the beam S1 by using the beam P1 to the beam P4, and obtains measurement results. The terminal device can select one beam from the beam P1 to the beam P4 according to the measurement results, and use the beam as a beam for communicating with the base station.

[0205] The terminal device can also determine more or fewer candidate beams as an example above. The procedure of the third stage is similar to the second stage, and other descriptions can be referred to the description of the second stage.

[0206] The communication system in the embodiments of the present application can implement all the procedures of the first stage to the third stage, or can only implement part of the procedures. For example, only the first stage and the second stage are implemented, and the terminal device can determine the beam by itself without the base station transmitting the CSI-RS.

[0207] Exemplarily, the network device can configure the terminal device to report the measurement results by using one of the following three ways. The three ways can include: periodic reporting, semi-persistent reporting, and aperiodic reporting. The semi-persistent reporting can also be referred to as semi-static reporting. The following will be introduced respectively.

[0208] Periodic reporting: The network device can transmit reference signal resource configuration information to the terminal device. The reference signal resource configuration information can include periodic reference signal resources. The network device can configure the terminal device to periodically measure the reference signal. The terminal device can measure the reference signal based on the reference signal resource configuration information, and periodically report the measurement results. Optionally, the measurement results obtained by the terminal device for the periodic reference signal can be carried on the PUCCH resource.

[0209] Semi-persistent reporting: the terminal device can be configured to measure the reference signal periodically, but the measurement result is reported in a semi-persistent manner. In one possible implementation, the network device sends the terminal device reference signal resource configuration information. The reference signal resource configuration information includes periodic reference signal resources. The network device configures the terminal device to measure the reference signal periodically. When the terminal device receives the activation signaling (e.g., MAC CE or DCI) from the network device, the terminal device can continuously report the measurement result. The network device can also send the terminal device a deactivation instruction to deactivate the semi-persistent reporting process of the terminal device. In another possible implementation, both the measurement of the reference signal and the reporting of the measurement result are semi-persistent. When the terminal device receives the activation signaling from the network device, the terminal device continuously measures the reference signal and reports the measurement result. When the terminal device receives the deactivation instruction from the network device, the terminal device stops reporting the measurement result. In addition, the measurement result can be carried on the PUCCH resource or the PUSCH resource.

[0210] Aperiodic reporting: when the terminal device receives the trigger instruction from the network device, the terminal device measures the reference signal and reports the measurement result. After completing the reporting, the terminal device stops reporting the measurement result. Optionally, the reference signal can be a periodic reference signal, a semi-persistent reference signal, or an aperiodic reference signal. Optionally, the measurement result is carried on the PUSCH resource.

[0211] Therefore, for the measurement result, either periodic reporting or trigger instruction is sent by the network device to trigger the terminal device to perform semi-persistent reporting or aperiodic reporting. Therefore, the reporting occasion is completely determined by the network device.

[0212] In R19, terminal device or event triggered reporting of measurement results is introduced. For example, the terminal device can inform the network device that it needs to report the measurement result. For another example, an event occurs to trigger the terminal device to report the measurement result.

[0213] FIG. 12 is a schematic flowchart of a communication method 800 provided by an embodiment of the present application. The optional operations in the method 800 are indicated by dashed lines in FIG. 12. The reporting format of the CSI report provided by the method 800 can be suitable for event triggered reporting. The method 800 is described below in conjunction with FIG. 12.

[0214] S840, the terminal device measures at least one event corresponding beam to obtain measurement result.

[0215] Exemplarily, the terminal device can measure, according to the configuration information, a beam corresponding to the at least one event to obtain a measurement result. Or, the terminal device can measure a resource of the beam corresponding to the at least one event, and the above-mentioned beam can be carried on the resource of the above-mentioned beam. The configuration information can be sent by the network device, or can be predefined or preconfigured. For specific description of the configuration information, refer to the following.

[0216] The following describes an example of the at least one event.

[0217] In some possible implementation manners, the at least one event is at least one of configured by the network device, activated by the network device, predefined, or preconfigured.

[0218] Exemplarily, the at least one event includes at least one of a first event, a second event, or a third event.

[0219] The first event can be that a signal quality of a serving beam is lower than a first threshold. Or, the signal quality of the serving beam is less than or equal to the first threshold.

[0220] The first event can be referred to as event 1 or other names, which are not limited in the present application.

[0221] The serving beam can be understood as a beam used by the terminal device to communicate with the network device currently. Or, the serving beam can be a beam used by the network device to provide services (for example, voice or data transmission, and for example, transmission of control information) for the terminal device. Alternatively, the serving beam is a beam corresponding to a TCI state indicated by the network device for the terminal device. Or, the serving beam is a beam corresponding to a QCL resource in the TCI state indicated by the network device for the terminal device, or the serving beam is a beam corresponding to a QCL type D reference signal in the TCI state indicated by the network device for the terminal device. Or, the serving beam is a beam corresponding to an SSB resource corresponding to the QCL resource in the TCI state indicated by the network device for the terminal device, or the serving beam is a beam corresponding to a reference signal associated with the QCL type D reference signal in the TCI state indicated by the network device for the terminal device. In one example, the serving beam is the QCL type D reference signal of the TCI state. If the QCL type D reference signal of the TCI state is a TRS, the TRS can correspond to one or more CSI-RSs or be composed of one or more CSI-RSs. The reference signal corresponding to the serving beam can be one of the one or more CSI-RSs, for example, the first or last CSI-RS in the one or more CSI-RSs. The terminal device can measure the beam quality of the serving beam, which can be understood as measuring the CSI-RS.

[0222] The serving beam can also be referred to as a current beam, a current serving beam, or other names, which are not limited in the present application.

[0223] In the embodiments of the present application, "less than or equal to", "less than", "lower than" or "not greater than" can be replaced with each other. "Greater than or equal to", "greater than", "higher than" or "not less than" can be replaced with each other.

[0224] For example, the signal quality (or referred to as beam quality) can include at least one of the following:

[0225] Reference signal received power (RSRP).

[0226] Signal to interference plus noise ratio (SINR).

[0227] Layer 1 (L1)-RSRP.

[0228] L1-SINR.

[0229] Synchronization signal (SS)-RSRP.

[0230] CSI-RSRP.

[0231] SS-SINR.

[0232] CSI-SINR.

[0233] The second event can be that there is at least one new beam whose signal quality is higher than the signal quality of the serving beam and greater than or equal to a second threshold. In other words, there is at least one new beam whose signal quality is higher than the signal quality of the serving beam by a second threshold. In other words, the difference between the signal quality of at least one new beam and the signal quality of the serving beam is greater than or equal to a second threshold.

[0234] The second event can be referred to as event 2 or other names, which are not limited in the present application.

[0235] For example, the new beam corresponding to the second event can include at least one of the following:

[0236] one or more beams different from the serving beam.

[0237] one or more beams configured by the network device for monitoring one or more reference signals of the new beam. Optionally, the one or more beams can be beams other than the serving beam.

[0238] one or more beams associated with the configured TCI state. Optionally, the one or more beams can be beams other than the serving beam.

[0239] The beams associated with the TCI state can refer to the foregoing, and will not be described again.

[0240] The third event can be that there is at least one new beam whose signal quality is higher than that of the first activated beam and greater than or equal to a third threshold. In other words, the signal quality of the at least one new beam is higher than that of the first activated beam by the third threshold. In other words, the difference between the signal quality of the at least one new beam and that of the first activated beam is greater than or equal to the third threshold.

[0241] The third event can be referred to as event 7 or other names, which are not limited in the present application.

[0242] Exemplarily, the first activated beam can be a beam whose signal quality is in the Eth position among the beams associated with the currently activated TCI state, and E can be a positive integer.

[0243] Exemplarily, the first activated beam can be a beam corresponding to a reference signal whose signal quality is in the Eth position among the reference signals associated with the currently activated TCI state, and E can be a positive integer.

[0244] Exemplarily, the new beam corresponding to the third event can include at least one of the following:

[0245] one or more beams different from the first activated beam or the beam corresponding to the currently activated TCI state.

[0246] one or more beams different from the serving beam.

[0247] one or more beams configured by the network device for monitoring one or more reference signals of the new beam. Optionally, the one or more beams can be beams other than the first activated beam or the beam corresponding to the currently activated TCI state.

[0248] one or more beams associated with the configured TCI state. Optionally, the one or more beams can be beams other than the first active beam or the beam corresponding to the currently active TCI state.

[0249] wherein E can be determined in any one or more of the following manners: predefined, preconfigured, reported by the terminal device, or configured by the network device. For example, E can be further configured by the network device based on the reported terminal capability, such as the terminal device reporting one or more candidate values of E, the network device indicating one of the candidate values, or the terminal device reporting a maximum value and / or a minimum value of E, the network device configuring E to be greater than or equal to the minimum value and / or less than or equal to the maximum value, or the network device not configuring E, the protocol specifying a default value of E, such as E = 1 or 2.

[0250] The at least one event can include other events, which are not limited in the present application. The at least one event can be part or all of the events configured for the terminal device. For example, the terminal device can be configured with the at least one event by the network device, or the at least one event can be predefined, preconfigured, or configured in other manners by the protocol.

[0251] Examples of the beam corresponding to the at least one event are described below.

[0252] For ease of description, the at least one event can include event a. For example, event a can be the first event, the second event, or the third event. The beam corresponding to event a can be denoted as beam a. Beam a can be part or all of the beams corresponding to the at least one event. For example, if the at least one event includes only event a, beam a can be all of the beams corresponding to the at least one event. For another example, if the at least one event includes event a and other events (e.g., event b), beam a can be part of the beams corresponding to the at least one event, or can be all of the beams. In the above case, the beams corresponding to the at least one event can include the beam corresponding to event a (i.e., beam a) and the beam corresponding to event b (denoted as beam b). Beam a and beam b can be the same or different.

[0253] When event a occurs, the terminal device can report the measurement result of beam a. When event b occurs, the terminal device can report the measurement result of beam b.

[0254] For example, the beam corresponding to the first event can be a serving beam.

[0255] For example, the beam corresponding to the second event can be a serving beam and a new beam.

[0256] For example, the beam corresponding to the third event can be the first active beam and the new beam. Alternatively, the beam corresponding to the third event can be the beam corresponding to the active TCI state and the new beam.

[0257] Exemplarily, the beam can be a downlink beam. In some possible implementations, before S840, the method 800 further includes: S830, the network device sends at least one beam to the terminal device, or in other words, the network device sends resources of the at least one beam, the at least one beam being carried on the resources of the at least one beam, or in other words, the network device sends a reference signal on a reference signal resource through the at least one beam. Correspondingly, the terminal device receives the at least one beam from the network device, or in other words, the terminal device receives the resources of the at least one beam from the network device, or in other words, the terminal device receives the reference signal on the reference signal resource through the at least one beam. Exemplarily, the terminal device can measure part or all of the at least one beam sent by the network device to obtain a measurement result. In other words, the beam corresponding to the at least one event can be all the beams sent by the network device, or part of the beams sent by the network device.

[0258] The foregoing beam can be represented by a resource, an index of the beam, a reference signal resource, a reference signal, or a reference signal resource index (that is, the above four descriptions can be replaced with each other). In the embodiments of the present application, the beam (for example, at least one of the active beam, the serving beam, the first beam, or the new beam) can refer to a resource, a reference signal, or a reference signal resource corresponding to the beam, or can be replaced with a resource, a reference signal, or a reference signal resource corresponding to the beam. For example, the index of the beam can be replaced with a resource index, a reference signal index, or a reference signal resource index corresponding to the beam. The foregoing active beam can be the beam corresponding to the active TCI state. The first beam can also be replaced with the first active beam, or the first beam can be the first active beam.

[0259] For other descriptions of the beam, refer to the foregoing, and no longer be repeated.

[0260] The measurement result can include one or more measurement result information. One measurement result information can correspond to part or all of the at least one event. In this way, when one or more events of the at least one event occur, the terminal device can report the measurement result information corresponding to the occurred event to the network device. The following takes S850 as an example for description.

[0261] S850, when an event a of the at least one event occurs, the terminal device sends a first CSI report corresponding to the event a to the network device. Correspondingly, the network device receives the first CSI report from the terminal device.

[0262] Exemplarily, in S840, the terminal device can measure, according to the configuration information, a reference signal corresponding to at least one of the activated beam, the serving beam, the first beam, or the new beam, to obtain a measurement result. The terminal device can determine, according to the measurement result, whether to send part or all of the above events, so as to determine whether to report the measurement result to the network device, and determine which event corresponding measurement result information is reported.

[0263] The first CSI report can belong to the measurement result. For example, the measurement result information in the first CSI report can be part or all of the measurement result information in the measurement result.

[0264] The first CSI report can correspond to event a, so that when event a occurs, the terminal device can send the first CSI report.

[0265] The first CSI report can also be called a first measurement report or other names, which are not limited in the present application.

[0266] The following describes examples of the reporting content of the first CSI report when event a is the first event, the second event, or the third event.

[0267] If the condition of the above certain event is met, it means that the event occurs, and the terminal device can report the reporting content of the corresponding event through the first CSI report. Or, if the condition of the above certain event is met, the event triggers the terminal to report the first CSI report, and the first CSI report corresponds to the reporting content of the event.

[0268] The occurrence of event a can correspond to the case of meeting the event condition of event a once, or the case of meeting the event condition of event a multiple times.

[0269] The following describes event a as the first event, the second event, or the third event.

[0270] Exemplarily, the occurrence of the first event (or the event condition of the first event is met) can be understood as that the signal quality of the serving beam is lower than the first threshold, or in the time window 1, the signal quality of the serving beam is lower than the first threshold for d1 times. Alternatively, the d1 times of measured serving beams are the same serving beam, or the terminal does not receive a new beam indication.

[0271] Exemplarily, the occurrence of the second event (or the event condition of the second event is met) can be understood as that the signal quality of at least one new beam is higher than the signal quality of the serving beam and greater than or equal to the second threshold, or in the time window 2, the signal quality of at least one new beam is higher than the signal quality of the serving beam and greater than or equal to the second threshold for d2 times.

[0272] Exemplarily, the third event occurs (or the event condition of the third event is met) can be understood as that there is at least one new beam whose signal quality is higher than that of the first active beam and is greater than or equal to the third threshold, or in other words, in the time window 3, there is at least one new beam whose signal quality is d3 times higher than that of the first active beam and is greater than or equal to the third threshold.

[0273] At least one of the time window 1, the time window 2, or the time window 3 can be determined in any one or more of the following manners: predefined, preconfigured, reported by the terminal device, or configured by the network device. The unit of the time window can be a time slot, a symbol, a subframe, a frame, a millisecond, or a microsecond, and the like, which is not limited in the embodiments of the present application. At least one of d1, d2, or d3 can be determined in any one or more of the following manners: predefined, preconfigured, reported by the terminal device, or configured by the network device. d1, d2, and d3 are all positive integers.

[0274] As can be seen from the above, the event a occurs (or the event condition of the event a is met) can have at least two meanings. In the case of no special description, the event a in the first field to the sixth field can be understood as at least one of the above two meanings, or can have other meanings, which is not limited in the present application.

[0275] For the first event occurs (i.e., the event a is the first event), the reporting content corresponding to the first event can include at least one of the following: event information (for example, a first event index), a resource index of a serving beam, beam quality information of the serving beam, or a difference between the beam quality of the serving beam and the first threshold.

[0276] For the second event occurs (i.e., the event a is the second event), the reporting content corresponding to the second event can include at least one of the following: event information (for example, a second event index), a resource index corresponding to at least one new beam, beam quality information of the at least one new beam, a resource index corresponding to a serving beam, or beam quality information of the serving beam.

[0277] For the third event occurs (i.e., the event a is the third event), the reporting content corresponding to the third event can include at least one of the following: event information (for example, a third event index), a resource index corresponding to at least one new beam, beam quality information of the at least one new beam, a beam index of the first beam, information of the first beam, or the first information.

[0278] The resource index can be a non-zero power CSI-RS resource identity (NZP-CSI-RS-ResourceId) or a SSB index (SSB-index) configured by the network device. When the reference signal corresponding to the beam is a CSI-RS, the resource index corresponding to the beam can be a CSI-RS resource indicator (CRI). When the reference signal corresponding to the beam is a SSB, the resource index corresponding to the beam can be a SSB resource indicator (SSBRI). The number of bits required for each resource index can be determined according to the number of resources in the resource set in which the resource is located. For example, if the resource set includes Q resources, the number of bits required for each resource index is

[0279] The beam index can include a reference signal index, a TCI state index, or a codepoint index.

[0280] An example of the reference signal index is described below.

[0281] As an example, the reference signal index can be an index (or referred to as a resource index) of L reference signals corresponding to L beams.

[0282] The L reference signals can be reference signals associated with the R activated TCI states. The L reference signals can also be understood as reference signals associated with all activated TCI states. For example, the L reference signals can be QCL Type D reference signals of the R activated TCI states. For another example, the L reference signals can be reference signals associated with QCL Type D reference signals of the R activated TCI states.

[0283] The reference signals associated with the TCI states are described above and will not be described here.

[0284] The L beams can correspond to the L reference signals one by one.

[0285] Exemplarily, the reference signal index can be taken from 0 to L-1, or 1 to L. In other words, the L reference signals can correspond to the L reference signal indexes respectively. Any two of the L reference signal indexes are different. For example, the L reference signals can be sequentially mapped to the L reference signal indexes (i.e., 0 to L-1, or 1 to L) according to the non-zero power CSI-RS resource identification (NZP-CSI-RS-ResourceId) or SSB index (SSB-index) of the L reference signals from large to small (or from small to large). For another example, the L reference signals can be sequentially mapped to the L reference signal indexes (i.e., 0 to L-1, or 1 to L) according to the index of the codepoint to which the L reference signals belong from large to small (or from small to large).

[0286] Optionally, the number of bits required for each reference signal index is

[0287] Exemplarily, the reference signal index can be a non-zero power CSI-RS resource identification (NZP-CSI-RS-ResourceId) or SSB index (SSB-index) configured by the network device. When the reference signal corresponding to the beam is a CSI-RS, the reference signal index corresponding to the beam can be a CRI; when the reference signal corresponding to the beam is an SSB, the reference signal index corresponding to the beam can be an SSBRI. The number of bits required for each reference signal index can be determined according to the number of reference signals in the reference signal resource set in which the reference signal is located. For example, the reference signal resource set includes Q reference signals, and the number of bits required for each reference signal index is

[0288] Exemplarily, the reference signal index can be the index of the codepoint to which the reference signal belongs. Exemplarily, K=L, and the reference signal index of the reference signal associated with the TCI state corresponding to the k-th codepoint in the K codepoints of the first signaling can be k. Wherein, k is a positive integer less than or equal to K. Optionally, the number of bits required for each reference signal index is or (i.e., the reference signal index is fixed to 3 bits).

[0289] Wherein, the first signaling can include K codepoints. K can be a positive integer less than or equal to 8. Each of the K codepoints corresponds to at least one of the R TCI states. For example, the K codepoints can be one-to-one corresponding to the R TCI states, i.e., K=R. For another example, one or more of the K codepoints correspond to one of the R TCI states.

[0290] For example, one codepoint in the K codepoints can correspond to one DL TCI state and one UL TCI state. Alternatively, one codepoint in the K codepoints corresponds to a DL TCI state belonging to the R TCI states, i.e., the TCI state corresponding to the codepoint can be the DL TCI state corresponding to the codepoint.

[0291] For another example, one codepoint in the K codepoints can correspond to one DL / joint TCI state or one UL TCI state. Alternatively, one codepoint in the K codepoints corresponds to a DL / joint TCI state belonging to the R TCI states, i.e., the TCI state corresponding to the codepoint can be the DL / joint TCI state corresponding to the codepoint.

[0292] Exemplarily, the structure of the first signaling can refer to FIG. 2. However, the structure of the first signaling is not limited in the present application, and the first signaling can also have other structures.

[0293] The R TCI states can be R TCI states activated by the network device through the first signaling (e.g., MAC CE signaling, or referred to as TCI state activation signaling). In some possible implementations, the network device can send the first signaling to the terminal device, and the first signaling can be used to activate the R TCI states. Alternatively, the R TCI states are R DL / joint TCI states activated in the TCI state activation signaling. For example, when the terminal device works in the joint TCI mode, the R TCI states are R joint TCI states activated in the TCI state activation signaling; when the terminal device works in the separate TCI mode, the R TCI states are R DL TCI states activated in the TCI state activation signaling. Correspondingly, the terminal device receives the first signaling from the network device.

[0294] As another example, the L beams correspond to L reference signals including V different reference signals, and the reference signal index can be the ordinal position index of the V different reference signals. Alternatively, the number of bits required by each reference signal index is or (i.e., the reference signal index is fixed to 3 bits).

[0295] The ordinal position index of the V different reference signals can indicate ordinal positions of the V different reference signals. For example, if the ordinal position of the first reference signal in the V different reference signals is 0 (or 1), the ordinal position index can be 0 (or 1). For another example, if the ordinal position of the second reference signal in the V different reference signals is 1 (or 2), the ordinal position index can be 1 (or 2). By analogy, if the ordinal position of the Vth reference signal in the V different reference signals is V-1 (or V), the ordinal position index can be V-1 (or V). The ordinal position can be understood as a position in the V different reference signals associated with the TCI state activated by the first signaling, and the positions are sequentially sorted from front to back or from back to front according to the codepoint positions.

[0296] For example, the first codepoint in the first signaling corresponds to reference signal #1, the reference signal index of the reference signal can be 0 (or 1), the second codepoint corresponds to reference signal #2, the reference signal index of the reference signal can be 1 (or 2), and the third codepoint and the fourth codepoint correspond to the same reference signal, which is reference signal #3, the reference signal index of the reference signal can be 2 (or 3).

[0297] An example of the TCI state index is described below.

[0298] As an example, the TCI state index can be an index of the R activated TCI states.

[0299] The R TCI states can be R TCI states activated by the network device through the first signaling (for example, MAC CE signaling, or referred to as TCI state activation signaling). In some possible implementations, the network device can send the first signaling to the terminal device, and the first signaling can be used to activate the R TCI states. Optionally, the R TCI states are R DL / joint TCI states activated in the TCI state activation signaling. For example, when the terminal device works in the joint TCI mode, the R TCI states are R joint TCI states activated in the TCI state activation signaling; when the terminal device works in the separate TCI mode, the R TCI states are R DL TCI states activated in the TCI state activation signaling. Correspondingly, the terminal device receives the first signaling from the network device.

[0300] Exemplarily, the TCI state index can be taken from 0 to R-1, or 1 to R. In other words, the R TCI states can correspond to R TCI state indexes respectively. Any two of the R TCI state indexes are different. For example, the R TCI states can be mapped to the R TCI state indexes (i.e., 0 to R-1, or 1 to R) in turn according to the TCI state identifiers (TCI-stateId) of the R TCI states from large to small (or from small to large). For another example, the R TCI states can be mapped to the R TCI state indexes (i.e., 0 to R-1, or 1 to R) in turn according to the indexes of the codepoints corresponding to the R TCI states from large to small (or from small to large).

[0301] Optionally, the number of bits required for each TCI state index is

[0302] Exemplarily, the TCI state index can be a TCI state identifier (TCI-stateId) configured by the network device.

[0303] Exemplarily, the TCI state index can be an index of a codepoint corresponding to a TCI state. Exemplarily, K=R, and the TCI state index of a TCI state corresponding to a k-th codepoint in the K codepoints of the first signaling can be k. Wherein, k is a positive integer less than or equal to K.

[0304] As another example, the R TCI states include T different TCI states, and the TCI state index is a ordinal position index of the T different TCI states.

[0305] Wherein, the ordinal position index of the T different TCI states can indicate the ordinal position where the T different TCI states are located. For example, the ordinal position where a 1st TCI state in the T different TCI states is located is 0 (or 1), and the ordinal position index can be 0 (or 1). For another example, the ordinal position where a 2nd TCI state in the T different TCI states is located is 1 (or 2), and the ordinal position index can be 1 (or 2). In this way, the ordinal position where a T-th TCI state in the T different TCI states is located is T-1 (or T), and the ordinal position index can be T-1 (or T). The ordinal position can be understood as the position in the T different TCI states activated by the first signaling, and the positions are sorted in turn from front to back or from back to front according to the codepoint positions.

[0306] Exemplarily, the ordinal position indexes of the T different TCI states can be sequentially ordered from small to large according to the codepoint indexes of the codepoints to which the TCI states belong. For example, the 1st codepoint in the first signaling corresponds to TCI state #1, the TCI state index of the TCI state #1 can be 0 (or 1), the 2nd codepoint corresponds to TCI state #2, the TCI state index of the TCI state #2 can be 1 (or 2), the 3rd codepoint and the 4th codepoint can correspond to the same TCI state #3, and the TCI state index of the TCI state #3 can be 2 (or 3).

[0307] An example of the codepoint index is introduced below.

[0308] In some examples, the codepoint index of each codepoint can be represented by bits. Exemplarily, the 0th to Kth codepoints of the first signaling sequentially correspond to codepoint indexes 0 to K. Wherein, are meaningless. Wherein, represents the ceiling.

[0309] In other examples, the codepoint index of each codepoint can be fixedly represented by 3 bits. Exemplarily, the 0th to Kth codepoints of the first signaling sequentially correspond to codepoint indexes 0 to K. Wherein, 8-K to 8 are meaningless.

[0310] Wherein, the first beam can be the beam ranked in the Mth position in terms of signal quality among the L beams, and M is a positive integer less than or equal to L. For example, assuming that L=4 and M=3, the L beams can be denoted as beam #1 to beam #4. If the L beams are sequentially beam #2, beam #1, beam #3, and beam #4 in terms of signal quality from high to low. Then, the first beam can be beam #3.

[0311] Wherein, the above M can be any one or more of predefined, preconfigured, reported by the terminal device, or configured by the network device. Exemplarily, M can be further configured by the network device according to the reported terminal capability, for example, the terminal device reports one or more candidate values of M, and the network device indicates one of the candidate values, for another example, the terminal device reports a maximum value and / or a minimum value of M, and the network device configures M, which needs to be greater than or equal to the minimum value and / or less than or equal to the maximum value, for another example, in the case where the network does not configure M, the protocol specifies the default value of M, for example, M=1 or 2.

[0312] The above M and the above E can be equal or not equal. In some examples, the above M can be determined according to the above E. For example, M=E+1. For another example, M=E-1. For another example, M=E. When M=E, it can be understood that the first beam is the beam corresponding to the first activated beam pair.

[0313] The first information can be used to determine a signal quality size relationship of part or all of the L activated beams, L being a positive integer.

[0314] The L activated beams can be L beams associated with activated TCI states. The meaning of the activated TCI states can be referred to the foregoing.

[0315] Exemplarily, when the terminal device works in the joint TCI mode, the activated TCI states can include any one or more of the following:

[0316] All activated joint TCI states in the TCI state activation signaling.

[0317] All activated different joint TCI states in the TCI state activation signaling.

[0318] Exemplarily, when the terminal device works in the separate TCI mode, the activated TCI states can include any one or more of the following:

[0319] All activated TCI states in the TCI state activation signaling, for example, including UL TCI states and DL TCI states.

[0320] All activated DL TCI states in the TCI state activation signaling.

[0321] All activated different DL TCI states in the TCI state activation signaling.

[0322] All activated UL TCI states in the TCI state activation signaling.

[0323] All activated different UL TCI states in the TCI state activation signaling.

[0324] Optionally, the above-mentioned TCI states are only DL / joint TCI states. For example, when the terminal device works in the joint TCI mode, the above-mentioned TCI states are joint TCI states; when the terminal device works in the separate TCI mode, the above-mentioned TCI states are DL TCI states.

[0325] The L beams can correspond to L reference signals. The L reference signals can also be understood as reference signals associated with all activated TCI states. For example, the L reference signals can be QCL Type D reference signals of the activated TCI states. For another example, the L reference signals can be reference signals associated with the QCL Type D reference signals of the activated TCI states.

[0326] The understanding of the reference signals associated with the TCI states can refer to the foregoing description, which will not be repeated here.

[0327] The signal quality size relationship can represent an ordering of the signal qualities of the beams, or a comparison relationship between the signal qualities of any two beams.

[0328] For example, the signal quality size relationship of the beams #1 to #4 can be: the signal quality of the beams in descending order is: beam #2, beam #1, beam #3, and beam #4; or the signal quality of the beams in ascending order is: beam #4, beam #3, beam #1, and beam #2. For another example, the signal quality size relationship of the beams #1 to #4 can be: the signal quality of beam #2 > the signal quality of beam #1, the signal quality of beam #1 > the signal quality of beam #3, and the signal quality of beam #3 > the signal quality of beam #4.

[0329] In some possible implementations, the network device can determine the signal quality size relationship of part or all of the L beams according to the first information, thereby assisting the network device to update the activated TCI states. For example, the signal qualities of some beams are relatively low in the ordering of the L beams, and the network device can determine that the TCI states associated with these beams are not activated TCI states, thereby achieving the update of the activated TCI states.

[0330] Optionally, the first information is used to determine the signal quality size relationship of part or all of the L beams, including: the first information is used to determine the beams whose signal qualities are greater than or equal to the signal quality of the first beam among the L beams.

[0331] The above scheme can also be understood as: the first information can be used to determine which TCI states associated with the beams whose signal qualities are greater than or equal to the signal quality of the first beam among the beams associated with all activated TCI states.

[0332] In other words, the first information can be used to determine which beams among the beams associated with the activated TCI states have signal qualities greater than or equal to the signal quality of the first beam among all beams associated with the activated TCI states.

[0333] In other words, the first information can be used to determine which of the beams associated with the activated TCI states have signal quality in the top M or top M-1 among all the beams associated with the activated TCI states.

[0334] In other words, the first information can be used to determine which of the beams associated with the activated TCI states have signal quality in the top M or top M-1 among all the beams associated with the activated TCI states.

[0335] In some examples, the first information can include F bits, F being a positive integer. A first bit among the F bits is used to indicate whether the signal quality of at least one of the L beams is greater than or equal to the signal quality of the first beam. For example, the at least one beam can be one beam. For another example, the at least one beam can be a plurality of identical beams.

[0336] In other examples, the first information indicates, by a certain rule, indices of all or part of the activated TCI states, or indicates indices of all or part of the beams associated with the activated TCI states. For example, the first information is used to indicate beam indices corresponding to the top M or top M-1 beams with the best signal quality. For another example, the first information is used to indicate beam indices corresponding to the last L-M beams with the worst signal quality. For another example, the first information is used to indicate beam indices of the L beams, and the order of the beam indices of the L beams is arranged in descending order or ascending order according to the signal quality of the L beams.

[0337] Examples of the format of the first CSI report are described below.

[0338] Exemplarily, the first CSI report includes one or more of the following fields:

[0339] A first field is used to carry the first information, or the first field is reserved. The first information is described above.

[0340] N second fields are used to carry resource indices of the serving beam or resource indices of the new beam, N being a positive integer, and / or part or all of the N second fields are reserved. The new beam can be different from the first beam, or the new beam can be different from the L beams, or the new beam can be different from the serving beam.

[0341] A third field is used to carry a beam index of the first beam or a resource index of the serving beam. Or, the third field is reserved.

[0342] N fourth fields, used to carry signal quality information of a serving beam or signal quality information of a new beam, and / or part or all of the N fourth fields are reserved.

[0343] A fifth field, used to carry signal quality information of a first beam or signal quality information of a serving beam, or reserved.

[0344] A sixth field, used to carry event information, or reserved. For example, the event information can be used to indicate information of event a.

[0345] FIG. 13 is a schematic diagram of a format of a CSI report according to an embodiment of the present application. FIG. 13 shows an example in which the first CSI report includes the first field to the sixth field, and other fields. FIG. 13 is merely exemplary, and is not intended to limit the present application. For example, the first CSI report can include at least one of the first field to the sixth field, or other fields.

[0346] Examples of information carried by the first field to the sixth field are described below.

[0347] For example, the first field can also be referred to as a first information indication field, or other names, which are not limited by the present application.

[0348] For example, the first field can carry first information, or be reserved.

[0349] In the embodiments of the present application, reserved and meaningless can be replaced with each other. Reserved can also be understood as meaningless. For example, the first field being reserved can also be understood as the first field being meaningless.

[0350] Optionally, the event a is a third event, and the first field is used to carry the first information.

[0351] In other words, if the event a is a third event, the first field is used to carry the first information.

[0352] In other words, if the event information indicates a third event, the first field is used to carry the first information.

[0353] Optionally, the event a is a first event or a second event, and the first field is reserved.

[0354] In other words, if the event a is a first event or a second event, the first field is reserved.

[0355] In other words, if the event information indicates a first event or a second event, the first field is reserved.

[0356] Exemplarily, the N second fields can also be referred to as N resource index indication fields or other names, which are not limited in the application.

[0357] For example, one of the N second fields can be used to carry the resource index of the service beam, and the other second fields (i.e., N-1 second fields) can be reserved unused.

[0358] For another example, Z of the N second fields can be used to respectively carry the resource indexes of Z new beams or the resource indexes of Z beams, and the other second fields (i.e., N-Z second fields) can be reserved unused. Wherein, Z is a positive integer less than or equal to N.

[0359] For another example, the N second fields can be used to respectively carry the resource indexes of N new beams or the resource indexes of N beams.

[0360] For another example, the N second fields can all be reserved unused.

[0361] Optionally, the event a is the first event, and one of the N second fields is used to carry the resource index of the service beam.

[0362] Alternatively, if the event a is the first event, one of the N second fields is used to carry the resource index of the service beam.

[0363] Alternatively, if the event information indicates the first event, one of the N second fields is used to carry the resource index of the service beam.

[0364] In some possible implementations, the first of the N second fields is used to carry the resource index of the service beam.

[0365] In another possible implementation, the last of the N second fields is used to carry the resource index of the service beam.

[0366] In yet another possible implementation, the nth of the N second fields is used to carry the resource index of the service beam. Wherein, n is an integer greater than 1 and less than N.

[0367] Optionally, the event a is the first event, one of the N second fields is used to carry the resource index of the service beam, and N-1 of the N second fields are reserved unused.

[0368] Alternatively, if the event a is the first event, one of the N second fields is used to carry the resource index of the service beam, and N-1 of the N second fields are reserved unused.

[0369] Alternatively, if the event information indicates the first event, one of the N second fields is used to carry the resource index of the serving beam, and N-1 of the N second fields are reserved.

[0370] The N-1 fields can be fields of the N second fields other than the field used to carry the resource index of the serving beam.

[0371] In some possible implementations, the first of the N second fields is used to carry the resource index of the serving beam, and the second to the Nth of the N second fields are reserved.

[0372] In some possible implementations, the first of the N second fields is used to carry the resource index of the serving beam, and the second to the Nth of the N second fields are reserved.

[0373] In some possible implementations, the first of the N second fields is used to carry the resource index of the serving beam, and the second to the Nth of the N second fields are reserved.

[0374] Alternatively, if the event a is the first event, all of the N second fields are reserved.

[0375] Alternatively, if the event a is the first event, all of the N second fields are reserved.

[0376] Alternatively, if the event information indicates the first event, all of the N second fields are reserved.

[0377] Alternatively, if the event a is the first event, all of the N second fields are reserved.

[0378] Alternatively, if the event a is the first event, all of the N second fields are reserved.

[0379] Alternatively, if the event information indicates the first event, all of the N second fields are reserved.

[0380] Alternatively, if the event a is the first event, all of the N second fields are reserved.

[0381] Alternatively, if the event a is the first event, all of the N second fields are reserved.

[0382] Or, if the event information indicates the second event or the third event, the N second fields respectively carry resource indexes of N beams.

[0383] For example, in the case of reporting the serving beam without configuring the occurrence of the second event, the N second fields can carry a resource index of one serving beam and resource indexes of N-1 new beams. Whether the N second fields carry the resource index of the serving beam can be determined by the terminal device.

[0384] For another example, in the case of reporting the first beam without configuring the occurrence of the third event, the N second fields can carry a beam index of one first beam and resource indexes of N-1 new beams. Whether the N second fields carry the beam index of the first beam can be determined by the terminal device.

[0385] Optionally, the event a is the second event, N-1 second fields in the N second fields respectively carry resource indexes of N-1 new beams, and one field in the N second fields (i.e., a field other than the fields carrying the resource indexes of the N-1 new beams) is reserved.

[0386] Or, if the event a is the second event, N-1 second fields in the N second fields respectively carry resource indexes of N-1 new beams, and one field in the N second fields is reserved.

[0387] Or, if the event information indicates the second event, N-1 second fields in the N second fields respectively carry resource indexes of N-1 new beams, and one field in the N second fields is reserved.

[0388] For example, in the case of reporting the serving beam without configuring the occurrence of the second event, one field in the N second fields is reserved, and the remaining N-1 second fields carry resource indexes of N-1 new beams. Reserving one field in the N second fields indicates that the terminal reports the beam quality of the serving beam, and there is no need to indicate the resource index of the serving beam.

[0389] Optionally, the event a is the second event or the third event, Z fields in the N second fields carry resource indexes of Z new beams, and N-Z fields in the N second fields are reserved, Z being a positive integer less than or equal to N.

[0390] Or, if the event a is the second event or the third event, Z fields in the N second fields carry resource indexes of Z new beams, and N-Z fields in the N second fields are reserved.

[0391] Alternatively, if the event information indicates the second event or the third event, Z fields of the N second fields are used to carry resource indexes of Z new beams, and N-Z fields of the N second fields are reserved unused.

[0392] In some possible implementations, the Z fields can be the first Z fields of the N second fields. In other possible implementations, the Z fields can be the last Z fields of the N second fields. In yet other possible implementations, the Z fields can be the middle Z fields of the N second fields.

[0393] The number of new beams that need to be reported when the second event and the third event occur can be referred to as the new beam number of the event. Optionally, N is the new beam number of the event a, which is the larger one of the new beam numbers of the second event and the third event. Optionally, the event a is the second event, and Z is the new beam number of the second event. Optionally, the event a is the third event, and Z is the new beam number of the third event.

[0394] Alternatively, if the event a is the second event or the third event, Z fields of the N second fields are used to carry resource indexes of Z beams, and N-Z fields of the N second fields are reserved unused.

[0395] Alternatively, if the event a is the second event or the third event, Z fields of the N second fields are used to carry resource indexes of Z beams, and N-Z fields of the N second fields are reserved unused.

[0396] Alternatively, if the event information indicates the second event or the third event, Z fields of the N second fields are used to carry resource indexes of Z new beams, and N-Z fields of the N second fields are reserved unused.

[0397] For example, in the case where the second event is not configured to report a serving beam, Z fields of the N second fields can carry a resource index of a serving beam and resource indexes of Z-1 new beams. The Z fields of the N second fields can also carry resource indexes of Z new beams. Whether the Z second fields carry the resource index of the serving beam can be determined by the terminal device.

[0398] For another example, in the case where the third event is not configured to report a first beam, Z fields of the N second fields can carry a beam index of a first beam and resource indexes of Z-1 new beams. The Z fields of the N second fields can also carry resource indexes of Z new beams. Whether the Z second fields carry the beam index of the first beam can be determined by the terminal device.

[0399] The number of beams that need to be reported when the second event and the third event occur can be referred to as the beam number of the event. Optionally, N is the larger beam number of the second event and the third event. Optionally, the event a is the second event, and Z is the beam number of the second event. Optionally, the event a is the third event, and Z is the beam number of the third event.

[0400] Optionally, the event a is the second event, Z-1 fields in the N second fields are used to carry resource indexes of Z-1 beams, and N-Z+1 fields in the N second fields are reserved.

[0401] Optionally, the event a is the second event, Z-1 fields in the N second fields are used to carry resource indexes of Z-1 beams, and N-Z+1 fields in the N second fields are reserved.

[0402] Optionally, the event a is the second event, Z-1 fields in the N second fields are used to carry resource indexes of Z-1 beams, and N-Z+1 fields in the N second fields are reserved.

[0403] The number of beams that need to be reported when the second event and the third event occur can be referred to as the beam number of the event. Optionally, N is the larger beam number of the second event and the third event. Optionally, the event a is the second event, and Z is the beam number of the second event. Optionally, the event a is the third event, and Z is the beam number of the third event.

[0404] For example, in the case where the second event is not configured to report the serving beam, the Z-1 fields are used to carry resource indexes of Z-1 new beams, and N-Z+1 fields in the N second fields are reserved. The terminal device can report the beam quality of the serving beam, that is, Z beams include one serving beam and N-1 new beams, but the terminal device does not need to report the resource index of the serving beam.

[0405] For example, the third field can be used to carry the beam index of the first beam or the resource index of the serving beam, or can be reserved.

[0406] For example, the third field can be used to carry the beam index of the first beam or the resource index of the serving beam, or can be reserved.

[0407] Optionally, the event a is the third event, and the third field is used to carry the beam index of the first beam.

[0408] Optionally, the event a is the third event, and the third field is used to carry the beam index of the first beam.

[0409] Or, if the event information indicates the third event, the third field is used to carry the beam index of the first beam.

[0410] Optionally, if the event a is the third event (or, if the event information indicates the third event), the third field is used to carry the beam index of the first beam; otherwise, the third field is reserved.

[0411] Optionally, the event a is the first event or the second event, and the third field is used to carry the resource index of the serving beam.

[0412] Or, if the event a is the first event or the second event, the third field is used to carry the resource index of the serving beam.

[0413] Or, if the event information indicates the first event or the second event, the third field is used to carry the resource index of the serving beam.

[0414] Optionally, the event a is the first event or the second event, and the third field is reserved.

[0415] Or, if the event a is the first event or the second event, the third field is reserved.

[0416] Or, if the event information indicates the first event or the second event, the third field is reserved.

[0417] Exemplarily, the N fourth fields can also be called N beam quality indication fields or other names, which are not limited by the present application.

[0418] For example, one of the N fourth fields can be used to carry the signal quality information of the serving beam, and the other fourth fields (i.e., N-1 fourth fields) can be reserved.

[0419] For another example, Z of the N fourth fields can be used to respectively carry the signal quality information of Z new beams or the signal quality information of Z beams, and the other fourth fields (i.e., N-Z fourth fields) can be reserved. Wherein, Z is a positive integer less than or equal to N.

[0420] For another example, the N fourth fields can be used to respectively carry the signal quality information of N new beams or the signal quality information of N beams.

[0421] For another example, the N fourth fields can all be reserved.

[0422] Optionally, if the event a is the first event, one of the N fourth fields is used to carry the signal quality information of the serving beam.

[0423] Alternatively, if the event a is the first event, one of the N fourth fields is used to carry the signal quality information of the serving beam.

[0424] Alternatively, if the event information indicates the first event, one of the N fourth fields is used to carry the signal quality information of the serving beam.

[0425] In some possible implementations, the first of the N fourth fields is used to carry the signal quality information of the serving beam.

[0426] In some other possible implementations, the last of the N fourth fields is used to carry the signal quality information of the serving beam.

[0427] In some possible implementations, the first of the N fourth fields is used to carry the signal quality information of the serving beam.

[0428] Alternatively, if the event a is the first event, one of the N fourth fields is used to carry the signal quality information of the serving beam, and N-1 of the N fourth fields are reserved.

[0429] Alternatively, if the event a is the first event, one of the N fourth fields is used to carry the signal quality information of the serving beam, and N-1 of the N fourth fields are reserved.

[0430] Alternatively, if the event information indicates the first event, one of the N fourth fields is used to carry the signal quality information of the serving beam, and N-1 of the N fourth fields are reserved.

[0431] In some possible implementations, the first of the N fourth fields is used to carry the signal quality information of the serving beam, and the fourth to the Nth of the N fourth fields are reserved.

[0432] In some other possible implementations, the last of the N fourth fields is used to carry the signal quality information of the serving beam, and the first to the N-1th of the N fourth fields are reserved.

[0433] In yet some possible implementations, the nth of the N fourth fields is used to carry the signal quality information of the serving beam, and the 1st to the n-1th, and the n+1th to the Nth of the N fourth fields are reserved. Wherein, n is an integer greater than 1 and less than N.

[0434] Alternatively, if the event a is the first event, all of the N fourth fields are reserved.

[0435] Or, if the event a is the first event, all of the N fourth fields are reserved.

[0436] Or, if the event information indicates the first event, all of the N fourth fields are reserved.

[0437] Alternatively, the event a is the second event or the third event, and the N fourth fields are respectively used to carry signal quality information of N new beams.

[0438] Alternatively, if the event a is the second event or the third event, the N fourth fields are respectively used to carry signal quality information of N new beams.

[0439] Or, if the event information indicates the second event or the third event, the N fourth fields are respectively used to carry signal quality information of N new beams.

[0440] The signal quality information of the N new beams corresponds to the resource indexes of the N new beams one by one. That is, the N fourth fields correspond to the N second fields one by one.

[0441] Alternatively, the event a is the second event or the third event, and the N fourth fields are respectively used to carry signal quality information of N new beams.

[0442] Alternatively, if the event a is the second event or the third event, the N fourth fields are respectively used to carry signal quality information of N new beams.

[0443] Or, if the event information indicates the second event or the third event, the N fourth fields are respectively used to carry signal quality information of N new beams.

[0444] For example, in the case of not configuring the second event to report the signal quality information of the serving beam, the N fourth fields can carry the signal quality information of one serving beam and the signal quality information of N-1 new beams. The N fourth fields can also carry the signal quality information of N new beams. Whether the N fourth fields carry the signal quality information of the serving beam can be determined by the terminal device.

[0445] For another example, in the case of not configuring the third event to report the signal quality information of the first beam, the N fourth fields can carry the signal quality information of one first beam and the signal quality information of N-1 new beams. The N fourth fields can also carry the signal quality information of N new beams. Whether the N fourth fields carry the signal quality information of the first beam can be determined by the terminal device.

[0446] Optionally, the event a is the second event or the third event, Z fields in the N fourth fields are used to carry signal quality information of Z new beams, and N-Z fields in the N fourth fields are reserved.

[0447] Optionally, the event a is the second event or the third event, Z fields in the N fourth fields are used to carry signal quality information of Z new beams, and N-Z fields in the N fourth fields are reserved.

[0448] Optionally, the event a is the second event or the third event, Z fields in the N fourth fields are used to carry signal quality information of Z new beams, and N-Z fields in the N fourth fields are reserved.

[0449] The signal quality information of the Z new beams corresponds to the resource indexes of the Z new beams in a one-to-one manner. That is, the N fourth fields correspond to the N second fields in a one-to-one manner, or the Z fourth fields correspond to the Z second fields in a one-to-one manner.

[0450] The number of new beams that need to be reported when the second event and the third event occur can be referred to as the new beam number of the event. Optionally, N is the new beam number of the event with a larger new beam number between the second event and the third event. Optionally, the event a is the second event, and Z is the new beam number of the second event. Optionally, the event a is the third event, and Z is the new beam number of the third event.

[0451] Optionally, the event a is the second event or the third event, Z fields in the N fourth fields are used to carry signal quality information of Z new beams, and N-Z fields in the N fourth fields are reserved.

[0452] Optionally, the event a is the second event or the third event, Z fields in the N fourth fields are used to carry signal quality information of Z new beams, and N-Z fields in the N fourth fields are reserved.

[0453] Optionally, the event a is the second event or the third event, Z fields in the N fourth fields are used to carry signal quality information of Z new beams, and N-Z fields in the N fourth fields are reserved.

[0454] For example, in the case where the signal quality information of the serving beam is not reported when the second event occurs, Z fields in the N fourth fields can carry the signal quality information of one serving beam and the signal quality information of Z-1 new beams. The Z fields in the N fourth fields can also carry the signal quality information of Z new beams. Whether the Z fourth fields carry the signal quality information of the serving beam can be determined by the terminal device.

[0455] For example, in the case that the first beam is not reported when the third event occurs, the Z fields in the N fourth fields can carry the signal quality information of the first beam and the signal quality information of Z-1 new beams. The Z fields in the N fourth fields can also carry the signal quality information of Z new beams. Whether the Z fourth fields carry the signal quality information of the first beam can be determined by the terminal device.

[0456] The number of beams that need to be reported when the second event and the third event occur can be referred to as the beam number of the event. Optionally, N is the beam number of the event with a larger beam number in the second event and the third event. Optionally, the event a is the second event, and Z is the beam number of the second event. Optionally, the event a is the third event, and Z is the beam number of the third event.

[0457] For example, the fifth field can be used to carry the signal quality information of the first beam or the signal quality information of the serving beam, or can be reserved.

[0458] For example, the fifth field can be used to carry the signal quality information of the first beam or the signal quality information of the serving beam, or can be reserved.

[0459] Optionally, the event a is the first event, and the fifth field is used to carry the signal quality information of the serving beam.

[0460] Optionally, the event a is the first event, and the fifth field is used to carry the signal quality information of the serving beam.

[0461] Optionally, the event information indicates the first event, and the fifth field is used to carry the signal quality information of the serving beam.

[0462] Optionally, the event a is the first event, and the fifth field is reserved.

[0463] Optionally, the event a is the first event, and the fifth field is reserved.

[0464] Optionally, the event information indicates the first event, and the fifth field is reserved.

[0465] Optionally, the event a is the second event, and the fifth field is used to carry the signal quality information of the serving beam when the second event is configured to report the serving beam or the signal quality information of the serving beam.

[0466] Optionally, the event a is the second event, and the fifth field is used to carry the signal quality information of the serving beam when the second event is configured to report the serving beam or the signal quality information of the serving beam.

[0467] Or, if the event information indicates the second event, and the reporting of the service beam or the signal quality information of the service beam when the second event occurs is configured, the fifth field is used to carry the signal quality information of the service beam.

[0468] The following describes an example of the reporting of the service beam or the signal quality information of the service beam when the second event occurs.

[0469] The reporting of the service beam or the signal quality information of the service beam when the second event occurs can be configured by RRC signaling.

[0470] In some possible implementations, the network device can configure the reporting of the service beam or the signal quality information of the service beam when the second event occurs. For example, the network device can send, to the terminal device, RRC signaling used to indicate the reporting of the service beam or the signal quality information of the service beam when the second event occurs.

[0471] For example, the network device can configure the reporting of the service beam when the second event occurs. The terminal device can determine the reporting of the signal quality information of the service beam when the second event occurs.

[0472] The above example takes the second event as an example, but can also be applicable to the third event or other events, which will not be described below.

[0473] The above example takes the signal quality information of the service beam as an example, but can also be applicable to the signal quality information of the first beam, the first information or other information, which will not be described below.

[0474] Optionally, the event a is the second event, and the fifth field is reserved unused in a case where the reporting of the service beam or the signal quality information of the service beam when the second event occurs is not configured.

[0475] Or, if the event a is the second event, and the reporting of the service beam or the signal quality information of the service beam when the second event occurs is not configured, the fifth field is reserved unused.

[0476] Or, if the event information indicates the second event, and the reporting of the service beam or the signal quality information of the service beam when the second event occurs is not configured, the fifth field is reserved unused.

[0477] The following describes an example of the reporting of the service beam or the signal quality information of the service beam when the second event occurs.

[0478] The second event is not configured to report the service beam or the signal quality information of the service beam, which means that the terminal device is not currently configured to report the service beam or the signal quality information of the service beam when the second event occurs. The "current" can be understood as the time when the terminal device receives the beam corresponding to the at least one event, the start time when the terminal device measures the beam corresponding to the at least one event, the end time (or completion time) when the terminal device measures the beam corresponding to the at least one event, the start time when the terminal device sends the first CSI report, or other time.

[0479] The second event is configured to report the service beam or the signal quality information of the service beam, which means that the second event is configured to always report the service beam or the signal quality information of the service beam when the second event occurs.

[0480] The above examples take the second event as an example, but can also be applied to the third event or other events, which will not be described below.

[0481] The above examples take the signal quality information of the service beam as an example, but can also be applied to the signal quality information of the first beam, the first information or other information, which will not be described below.

[0482] Optionally, the event a is the third event, and the fifth field is used to carry the signal quality information of the first beam.

[0483] Alternatively, if the event a is the third event, the fifth field is used to carry the signal quality information of the first beam.

[0484] Alternatively, if the event information indicates the third event, the fifth field is used to carry the signal quality information of the first beam.

[0485] Optionally, the event a is the third event, and in a case where the third event is configured to report the first beam or the signal quality information of the first beam, the fifth field is used to carry the signal quality information of the first beam.

[0486] Alternatively, if the event a is the third event, and the third event is configured to report the first beam or the signal quality information of the first beam, the fifth field is used to carry the signal quality information of the first beam.

[0487] Alternatively, if the event information indicates the third event, and the third event is configured to report the first beam or the signal quality information of the first beam, the fifth field is used to carry the signal quality information of the first beam.

[0488] The description of the third event configured to report the first beam or the signal quality information of the first beam is described in the foregoing examples, which will not be described below.

[0489] Optionally, the event a is a third event, and the fifth bit is reserved if the reporting of the first beam or the signal quality information of the first beam is not configured when the third event occurs.

[0490] Optionally, the event a is a third event, and the fifth bit is reserved if the reporting of the first beam or the signal quality information of the first beam is not configured when the third event occurs.

[0491] Optionally, the event a is a third event, and the fifth bit is reserved if the reporting of the first beam or the signal quality information of the first beam is not configured when the third event occurs.

[0492] The description of the reporting of the first beam or the signal quality information of the first beam when the third event occurs is not configured can refer to the related examples in the foregoing description, and will not be described herein.

[0493] Optionally, the event a is a third event, and the fifth field is reserved.

[0494] Optionally, the event a is a third event, and the fifth field is reserved.

[0495] Optionally, the event a is a third event, and the fifth field is reserved.

[0496] Exemplarily, the sixth field can also be referred to as an event information field or other names, which are not limited in the present application.

[0497] The event information can indicate the event information (for example, the index of the event a) or the reporting content corresponding to which event the reporting corresponds to, or the information used to indicate whether the event occurs. Exemplarily, the event information can indicate the information of the event a (for example, the index of the event a).

[0498] For example, the sixth field can be used to carry the information indicating the event a, or can be reserved.

[0499] In some possible implementations, the first CSI report can further include other information fields. The field can be used to carry other information. The other information can be different from the information carried by the first field to the sixth field.

[0500] In some examples, the other information field can include a seventh field. The seventh field can indicate the beam information of the reported beam that satisfies the event condition. The event condition can be the condition of the event occurrence. For example, the event condition of the first event can be the condition of the occurrence of the first event. In the case of satisfying the event condition of the first event, the first event occurs.

[0501] For example, the beam information can include a number of beams satisfying the event condition, and / or a first bit bitmap. The first bit bitmap can be used to indicate whether each reported beam satisfies the event condition.

[0502] In some examples, the number of beams satisfying the event condition can be understood as a number of new beams satisfying the event condition. Alternatively, the number of beams satisfying the event condition can be understood as a number of beams satisfying the event condition among all reported beams. Or a bit indication.

[0503] For example, the event a is the second event, and the terminal device can indicate, in the first CSI report, a number of new beams among the reported new beams whose signal quality is higher than that of the serving beam by a second threshold; or indicate, among the reported new beams, a number of new beams whose signal quality is higher than that of the serving beam by the second threshold except for the new beam corresponding to the maximum signal quality.

[0504] For example, the event a is the second event, and the terminal device can indicate, in the first CSI report, a number of beams among the reported beams whose signal quality is higher than that of the serving beam by a second threshold; or indicate, among the reported beams, a number of beams whose signal quality is higher than that of the serving beam by the second threshold except for the beam corresponding to the maximum signal quality.

[0505] For example, the event a is the third event, and the terminal device can indicate, in the first CSI report, a number of new beams among the reported new beams whose signal quality is higher than that of the first activated beam by a third threshold; or indicate, among the reported new beams, a number of new beams whose signal quality is higher than that of the first activated beam by the third threshold except for the new beam corresponding to the maximum signal quality.

[0506] For example, the event a is the third event, and the terminal device can indicate, in the first CSI report, a number of beams among the reported beams whose signal quality is higher than that of the first activated beam by a third threshold; or indicate, among the reported beams, a number of beams whose signal quality is higher than that of the first activated beam by the third threshold except for the beam corresponding to the maximum signal quality.

[0507] In some examples, the first bit bitmap can include N bits, the N bits corresponding to the N reported new beams one by one, and each bit of the N bits being used to indicate whether each new beam of the N reported new beams satisfies the event condition. For example, the i th bit of the N bits is used to indicate whether the i th new beam of the N reported new beams satisfies the event condition. Wherein, i is a positive integer less than or equal to N. For example, the 1 st bit of the N bits is used to indicate whether the 1 st new beam of the N reported new beams satisfies the event condition, the 2 nd bit of the N bits is used to indicate whether the 2 nd new beam of the N reported new beams satisfies the event condition, and so on.

[0508] For example, when the bit value is '1', it can represent that the new beam corresponding to the bit meets the event condition, and when the bit value is '0', it represents that the new beam corresponding to the bit does not meet the event condition. Or, when the bit value is '0', it represents that the new beam corresponding to the bit meets the event condition, and when the bit value is '1', it represents that the new beam corresponding to the bit does not meet the event condition.

[0509] For example, the event a is the second event, and whether the event condition is met can be understood as whether the signal quality of the reported new beam is higher than the signal quality of the serving beam by a second threshold, or whether the reported new beam has D times that the signal quality of the new beam is higher than the signal quality of the serving beam by the second threshold within the first time window.

[0510] For another example, the event a is the third event, and whether the event condition is met can be understood as whether the signal quality of the reported new beam is higher than the signal quality of the first activated beam by a third threshold, or whether the reported new beam has D times that the signal quality of the new beam is higher than the signal quality of the first activated beam by the third threshold within the first time window.

[0511] For example, D can be pre-defined, pre-configured, reported by the terminal device, or determined by any one or more of the network device, for example, D can be further configured by the network device according to the reported terminal capability, for example, the terminal device reports one or more candidate values of D, and the network device indicates one of the candidate values, for another example, the terminal device reports the maximum value and / or the minimum value of D, and the network device configures D, which needs to be greater than or equal to the minimum value and / or less than or equal to the maximum value, for another example, the network does not configure D, and the protocol specifies the default value of D, for example, D = 1 or 2.

[0512] Taking the third event as an example, if the terminal device has more than or equal to D times of measured signal quality that is higher than the signal quality of the first beam by the third threshold in the measurement of a new beam within the first time window, the new beam meets the event condition corresponding to the third event.

[0513] In some examples, the other information field includes a seventh field and an eighth field. The descriptions of the seventh field and the eighth field are similar, and the differences are as follows.

[0514] In the description of the seventh field, the event condition corresponding to the second event, or in other words, when the event a is the second event, the "whether the event condition is satisfied" is understood as whether the signal quality of the reported new beam is higher than the signal quality of the serving beam by the second threshold. The event condition corresponding to the third event, or in other words, when the event a is the third event, the "whether the event condition is satisfied" is understood as whether the signal quality of the reported new beam is higher than the signal quality of the first activated beam by the third threshold.

[0515] In the description of the eighth field, the event condition corresponding to the second event, or in other words, when the event a is the second event, the "whether the event condition is satisfied" is understood as whether, in the first time window, the reported new beam has D times that the signal quality of the new beam is higher than the signal quality of the serving beam by the second threshold. The event condition corresponding to the third event, or in other words, when the event a is the third event, the "whether the event condition is satisfied" is understood as whether, in the first time window, the reported new beam has D times that the signal quality of the new beam is higher than the signal quality of the first beam by the third threshold.

[0516] For other examples of the eighth field, refer to the description of the seventh field in the present application, which will not be repeated here.

[0517] In some examples, the first bit map can include N-1 bits, and the N-1 bits correspond to N-1 new beams in the reported N new beams except for the new beam with the highest signal quality, and each bit of the N bits is used to indicate whether each new beam of the reported N new beams satisfies the event condition. For example, the i th bit of the N bits is used to indicate whether the i th new beam of the reported N new beams satisfies the event condition. Wherein, i is a positive integer less than or equal to N. For example, the 1 st bit of the N bits is used to indicate whether the 1 st new beam of the reported N new beams satisfies the event condition, the 2 nd bit of the N bits is used to indicate whether the 2 nd new beam of the reported N new beams satisfies the event condition, and so on.

[0518] For example, when the bit value is '1', it can represent that the new beam corresponding to the bit satisfies the event condition, and when the bit value is '0', it represents that the new beam corresponding to the bit does not satisfy the event condition. Or, when the bit value is '0', it represents that the new beam corresponding to the bit satisfies the event condition, and when the bit value is '1', it represents that the new beam corresponding to the bit does not satisfy the event condition.

[0519] For example, when the event a is the second event, the "whether the event condition is satisfied" can be understood as whether the signal quality of the new beam is higher than the signal quality of the serving beam by the second threshold. For another example, when the event a is the third event, the "whether the event condition is satisfied" can be understood as whether the signal quality of the new beam is higher than the signal quality of the first activated beam by the third threshold.

[0520] In some examples, the first bitmap can include N bits, the N bits correspond to the N second fields one by one, and each of the Z bits in the N bits can be used to indicate whether each of the N reported new beams satisfies the event condition.

[0521] For example, the i th bit of the N bits is used to indicate whether the i th new beam in the N reported new beams satisfies the event condition. Wherein, i is a positive integer less than or equal to N. For example, the 1 st bit of the N bits is used to indicate whether the 1 st new beam in the N reported new beams satisfies the event condition, the 2 nd bit of the N bits is used to indicate whether the 2 nd new beam in the N reported new beams satisfies the event condition, and so on.

[0522] In some examples, the first bitmap can include N bits, the N bits correspond to the N second fields one by one, and each of the Z bits in the N bits can be used to indicate whether each of the N reported new beams satisfies the event condition, and the N-Z bits are meaningless. For example, the Z bits can be the first Z bits of the N bits, and the N-Z bits described above can be the last N-Z bits of the N bits. For another example, the Z bits can be the last Z bits of the N bits, and the N-Z bits described above can be the first N-Z bits of the N bits.

[0523] For example, the i th bit of the Z bits is used to indicate whether the i th new beam in the Z reported new beams satisfies the event condition. Wherein, i is a positive integer less than or equal to Z. For example, the 1 st bit of the Z bits is used to indicate whether the 1 st new beam in the Z reported new beams satisfies the event condition, the 2 nd bit of the Z bits is used to indicate whether the 2 nd new beam in the Z reported new beams satisfies the event condition, and so on.

[0524] For example, when the bit value is '1', it can represent that the new beam corresponding to the bit satisfies the event condition, and when the bit value is '0', it represents that the new beam corresponding to the bit does not satisfy the event condition. Or, when the bit value is '0', it represents that the new beam corresponding to the bit satisfies the event condition, and when the bit value is '1', it represents that the new beam corresponding to the bit does not satisfy the event condition.

[0525] For example, the event a is the second event, and whether the event condition is satisfied can be understood as whether the signal quality of the new beam is higher than the signal quality of the serving beam by a second threshold. For another example, the event a is the third event, and whether the event condition is satisfied can be understood as whether the signal quality of the new beam is higher than the signal quality of the first activated beam by a third threshold.

[0526] In some examples, the first bitmap includes Z bits, the Z bits correspond to the Z reported new beams one by one, and each of the Z bits is used to indicate whether each of the Z reported new beams satisfies the event condition.

[0527] For example, an i th bit of the Z bits is used to indicate whether an i th new beam of the Z reported new beams satisfies the event condition. Wherein, i is a positive integer less than or equal to Z. For example, a 1 st bit of the Z bits is used to indicate whether a 1 st new beam of the Z reported new beams satisfies the event condition, a 2 nd bit of the Z bits is used to indicate whether a 2 nd new beam of the Z reported new beams satisfies the event condition, and so on.

[0528] For example, when the bit value is ‘1’, it can represent that the new beam corresponding to the bit satisfies the event condition, and when the bit value is ‘0’, it represents that the new beam corresponding to the bit does not satisfy the event condition. Or, when the bit value is ‘0’, it represents that the new beam corresponding to the bit satisfies the event condition, and when the bit value is ‘1’, it represents that the new beam corresponding to the bit does not satisfy the event condition.

[0529] For example, the event a is the second event, and whether the event condition is satisfied can be understood as whether the signal quality of the new beam is higher than the signal quality of the serving beam by a second threshold. For another example, the event a is the third event, and whether the event condition is satisfied can be understood as whether the signal quality of the new beam is higher than the signal quality of the first activated beam by a third threshold.

[0530] In other examples, the first bitmap includes Z-1 bits, the Z-1 bits correspond to Z-1 new beams of the Z reported new beams except for the new beam with the highest signal quality one by one, and each of the Z-1 bits is used to indicate whether each of the Z-1 reported new beams satisfies the event condition.

[0531] For example, an i th bit of the Z-1 bits is used to indicate whether an i th new beam of the Z-1 reported new beams satisfies the event condition. Wherein, i is a positive integer less than or equal to Z-1. For example, a 1 st bit of the Z-1 bits is used to indicate whether a 1 st new beam of the Z-1 reported new beams satisfies the event condition, a 2 nd bit of the Z-1 bits is used to indicate whether a 2 nd new beam of the Z-1 reported new beams satisfies the event condition, and so on.

[0532] For example, when the bit value is ‘1’, it can represent that the new beam corresponding to the bit satisfies the event condition, and when the bit value is ‘0’, it represents that the new beam corresponding to the bit does not satisfy the event condition. Or, when the bit value is ‘0’, it represents that the new beam corresponding to the bit satisfies the event condition, and when the bit value is ‘1’, it represents that the new beam corresponding to the bit does not satisfy the event condition.

[0533] For example, the event a is the second event, and the "whether the event condition is satisfied" can be understood as whether the signal quality of the new beam is higher than the signal quality of the serving beam by the second threshold. For another example, the event a is the third event, and the "whether the event condition is satisfied" can be understood as whether the signal quality of the new beam is higher than the signal quality of the first activated beam by the third threshold.

[0534] Optionally, the field carrying the first bitmap can be located before or after the N second fields, or before or after the N fourth fields. The first bitmap includes N bits, and the N bits can be placed continuously. The first bitmap can include Z bits, and the Z bits can be placed continuously. The first bitmap can include Z-1 bits, and the Z-1 bits can be placed continuously.

[0535] Optionally, the first bitmap includes N bits, and each bit of the N bits can be located before (or after) each of the N second fields, and / or before (or after) each of the N fourth fields. The above example can also be understood as that before or after each of the second fields or the fourth fields, there is a bit for indicating whether the beam corresponding to the second field or the fourth field satisfies the event condition.

[0536] Optionally, the first bitmap includes Z bits, and each bit of the Z bits can be located before (or after) each of the Z second fields (corresponding to the resource indexes of the Z beams or the new beam) of the N second fields, and / or before (or after) each of the Z fourth fields (corresponding to the signal quality information of the Z beams or the new beam) of the N fourth fields. The above example can also be understood as that before or after each of the resource index fields (or the second fields carrying the resource indexes of the new beam) or the signal quality information fields (or the fourth fields carrying the signal quality information of the new beam) of the reported new beams, there is a bit for indicating whether the beam corresponding to the second field or the fourth field satisfies the event condition.

[0537] Optionally, the first bitmap includes Z-1 bits, each of the Z-1 bits can be located before (or after) each of Z-1 second fields (corresponding to resource indexes of the Z-1 beams or new beams) in the N second fields, and / or before (or after) each of Z fourth fields (corresponding to signal quality information of the Z-1 beams or new beams) in the N fourth fields. The above example can also be understood as, in addition to the new beam with the best signal quality, before or after the resource index field (or the second field carrying the resource index of the new beam) or the signal quality information field (or the fourth field carrying the signal quality information of the new beam) of each reported new beam, there is a bit for indicating whether the beam corresponding to the second field or the fourth field meets the event condition.

[0538] Optionally, the seventh field exists according to any one or more of the following, otherwise it does not exist:

[0539] The at least one event includes a second event.

[0540] The at least one event includes a third event.

[0541] The terminal device does not report the beam quality information of the serving beam. Or, any field in the first CSI report does not carry the beam quality information of the serving beam. Or, the first CSI report does not include a field carrying the beam quality information of the serving beam.

[0542] The network device does not configure the reporting of the serving beam or the beam quality information of the serving beam.

[0543] The terminal device does not report the beam quality information of the first activated beam. Or, any field in the first CSI report does not carry the beam quality information of the first activated beam. Or, the first CSI report does not include a field carrying the beam quality information of the first activated beam.

[0544] The network device does not configure the reporting of the first activated beam or the beam quality information of the first activated beam.

[0545] Optionally, the eighth field exists according to any one or more of the following, otherwise it does not exist:

[0546] The at least one event includes a second event.

[0547] The at least one event includes a third event.

[0548] The terminal device does not report the beam quality information of the serving beam. In other words, any field in the first CSI report does not carry the beam quality information of the serving beam. In other words, the first CSI report does not include a field carrying the beam quality information of the serving beam.

[0549] The network device does not configure the terminal device to report the serving beam or the beam quality information of the serving beam.

[0550] The terminal device does not report the beam quality information of the first activated beam. In other words, any field in the first CSI report does not carry the beam quality information of the first activated beam. In other words, the first CSI report does not include a field carrying the beam quality information of the first activated beam.

[0551] The network device does not configure the terminal device to report the first activated beam or the beam quality information of the first activated beam.

[0552] In some examples, the other information field can include a seventh field and / or an eighth field. In other words, the first CSI report can include the seventh field and / or the eighth field.

[0553] Exemplarily, the seventh field can carry information (denoted as first indication information) indicating a beam (or a new beam) among the reported beams (or new beams) that satisfies the event condition of event a. Optionally, the seventh field carries at least one of indication information, a first bit map, or second information of the number of beams (or new beams) that satisfy the event condition. In other words, the first indication information includes at least one of the number of beams that satisfy the event condition, the first bit map, or the second information.

[0554] The first bit map can be used to indicate whether the reported beam satisfies the event condition. The second information can be used to indicate a second beam, which can be a beam or a new beam among the reported beams or new beams that satisfies the event condition (or referred to as the condition of event occurrence) and has the minimum signal quality.

[0555] Exemplarily, the eighth field can indicate information (denoted as second indication information) of a beam among the reported beams that satisfies the event condition of event a D times within a first time window.

[0556] For example, in the case that event a is the second event, the first time window can be the aforementioned time window 2, and D can be the aforementioned d2. For another example, in the case that event a is the third event, the first time window can be the aforementioned time window 3, and D can be the aforementioned d3. More descriptions are provided in the foregoing and the following, which are not described here.

[0557] wherein, the D can be predefined, preconfigured, reported by the terminal device, or determined by any one or more of the network device, for example, the network device can further configure the D according to the reported terminal capability, for example, the terminal device reports one or more candidate values of D, and the network device indicates one of the candidate values, for example, the terminal device reports the maximum value and / or the minimum value of D, and the network device configures the D, which needs to be greater than or equal to the minimum value and / or less than or equal to the maximum value, for example, in the case that the network does not configure the D, the protocol specifies the default value of D, for example, D = 1 or 2. The D can be a positive integer. Details are not described hereinafter.

[0558] Optionally, the eighth field is used to carry at least one of the indication information of the number of beams satisfying the event condition D times in the first time window, the second bit bitmap, or the third information.

[0559] wherein, the second bit bitmap can be used to indicate whether the reported beam satisfies the event condition D times in the first time window. The third information can be used to indicate the third beam, which can be the beam or the new beam reported by the terminal device, or the beam or the new beam with the minimum signal quality among the beams or the new beams satisfying the event condition (or the condition of event occurrence) D times in the first time window.

[0560] The event condition can be the condition of event occurrence.

[0561] For example, the event condition of the second event can be the condition of the second event occurrence. The second event occurs in the case that the event condition of the second event is satisfied.

[0562] For example, the second event occurrence (or the event condition of the second event is satisfied) can be understood as that there is at least one new beam with the signal quality higher than that of the serving beam and greater than or equal to the second threshold.

[0563] The event condition of the second event is satisfied D times in the first time window can be understood as that, in the first time window (for example, time window 2), the signal quality of at least one new beam is higher than that of the serving beam and greater than or equal to the second threshold D times (for example, d2 times).

[0564] wherein, the beam (or the new beam) satisfying the event condition of the second event can be understood as the beam (or the new beam) with the signal quality higher than that of the serving beam and greater than or equal to the second threshold, or can be understood as the beam (or the new beam) with the signal quality higher than that of the serving beam and greater than or equal to the second threshold D times (for example, d2 times) in the first time window (for example, time window 2).

[0565] For another example, the event condition of the third event can be a condition under which the third event occurs. The third event occurs in a case where the event condition of the third event is satisfied.

[0566] For example, the third event occurs (or in other words, the event condition of the third event is satisfied) can be understood as that there is at least one new beam whose signal quality is higher than that of the first active beam and is greater than or equal to the third threshold.

[0567] The event condition of the third event is satisfied D times in the first time window can be understood as that, in the first time window (for example, time window 3), the signal quality of at least one new beam is higher than that of the first active beam and is greater than or equal to the third threshold D times (for example, d3 times). Wherein, the beam (or new beam) that satisfies the event condition of the third event can be understood as the beam (or new beam) whose signal quality is higher than that of the first active beam and is greater than or equal to the third threshold, and can also be understood as the beam (or new beam) whose signal quality is higher than that of the first active beam and is greater than or equal to the third threshold D times (for example, d3 times) in the first time window (for example, time window 3).

[0568] The following takes the seventh field as an example to introduce the example of the number of beams satisfying the event condition.

[0569] In some examples, the number of beams satisfying the event condition can be understood as the number of new beams satisfying the event condition. Alternatively, the number of beams satisfying the event condition can be understood as the number of beams satisfying the event condition in the reported beams. Or Bit indication.

[0570] For example, the event a is the second event, and the terminal device can indicate, in the first CSI report, the number of new beams in the reported new beams whose signal quality is higher than that of the serving beam by the second threshold, and optionally, the number of new beams is indicated by Or Bit indication; or the terminal device can indicate, in the first CSI report, the number of new beams in the reported new beams except the new beam corresponding to the maximum signal quality, whose signal quality is higher than that of the serving beam by the second threshold, and optionally, the number of new beams is indicated by Or Bit indication.

[0571] For another example, the event a is the second event, and the terminal device can indicate, in the first CSI report, the number of beams in the reported beams whose signal quality is higher than that of the serving beam by the second threshold, and optionally, the number of beams is indicated by Or Bit indication; or the terminal device can indicate, in the first CSI report, the number of beams in the reported beams except the beam corresponding to the maximum signal quality, whose signal quality is higher than that of the serving beam by the second threshold, and optionally, the number of beams is indicated by Or bit indication.

[0572] For another example, the event a is the third event, the terminal device can indicate in the first CSI report the number of new beams whose signal quality is higher than that of the first activated beam by the third threshold among the reported new beams, optionally through or bit indication; or indicate the number of new beams whose signal quality is higher than that of the first activated beam by the third threshold among the reported new beams except the new beam corresponding to the maximum signal quality, optionally through or bit indication.

[0573] For another example, the event a is the third event, the terminal device can indicate in the first CSI report the number of beams whose signal quality is higher than that of the first activated beam by the third threshold among the reported beams, optionally through or bit indication; or indicate the number of beams whose signal quality is higher than that of the first activated beam by the third threshold among the reported beams except the beam corresponding to the maximum signal quality, optionally through or bit indication.

[0574] The following takes the eighth field as an example to introduce the example of the number of beams satisfying the event condition D times in the first time window.

[0575] In some examples, the number of beams satisfying the event condition D times in the first time window can be understood as the number of new beams satisfying the event condition D times in the first time window. Optionally, through or bit indication.

[0576] For example, the event a is the second event, the terminal device can indicate in the first CSI report the number of new beams whose signal quality is higher than that of the serving beam by the second threshold D times in the first time window among the reported new beams, optionally through or bit indication; or indicate the number of new beams whose signal quality is higher than that of the serving beam by the second threshold D times in the first time window among the reported new beams except the new beam corresponding to the maximum signal quality, optionally through or bit indication.

[0577] For example, the event a is the second event, the terminal device can indicate the number of beams whose signal quality is higher than that of the serving beam by the second threshold D times in the first time window among the reported beams in the first CSI report, optionally, through Or bit indication; or indicate the number of beams whose signal quality is higher than that of the serving beam by the second threshold D times in the first time window among the reported beams except the beam corresponding to the maximum signal quality, optionally, through Or bit indication.

[0578] For example, the event a is the third event, the terminal device can indicate the number of new beams whose signal quality is higher than that of the first activated beam by the third threshold D times in the first time window among the reported new beams in the first CSI report, optionally, through Or bit indication; or indicate the number of new beams whose signal quality is higher than that of the first activated beam by the third threshold D times in the first time window among the reported new beams except the new beam corresponding to the maximum signal quality, optionally, through Or bit indication.

[0579] For example, the event a is the third event, the terminal device can indicate the number of beams whose signal quality is higher than that of the first activated beam by the third threshold D times in the first time window among the reported beams in the first CSI report, optionally, through Or bit indication; or indicate the number of beams whose signal quality is higher than that of the first activated beam by the third threshold D times in the first time window among the reported beams except the beam corresponding to the maximum signal quality, optionally, through Or bit indication.

[0580] The following takes the seventh field as an example to introduce an example of the first bit bitmap.

[0581] In some examples, the first bitmap can include N bits, the N bits corresponding to the N reported new beams one by one, each of the N bits being used to indicate whether each of the N reported new beams satisfies the event condition. For example, an i th bit of the N bits is used to indicate whether an i th new beam of the N reported new beams satisfies the event condition. Wherein i is a positive integer less than or equal to N. For example, a 1 st bit of the N bits is used to indicate whether a 1 st new beam of the N reported new beams satisfies the event condition, a 2 nd bit of the N bits is used to indicate whether a 2 nd new beam of the N reported new beams satisfies the event condition, and so on.

[0582] For example, when the bit value is '1', it can represent that the new beam corresponding to the bit satisfies the event condition, and when the bit value is '0', it represents that the new beam corresponding to the bit does not satisfy the event condition. Or, when the bit value is '0', it represents that the new beam corresponding to the bit satisfies the event condition, and when the bit value is '1', it represents that the new beam corresponding to the bit does not satisfy the event condition.

[0583] For example, the event a is a second event, and whether the event condition is satisfied can be understood as whether the signal quality of the reported new beam is higher than the signal quality of the serving beam by a second threshold.

[0584] For another example, the event a is a third event, and whether the event condition is satisfied can be understood as whether the signal quality of the reported new beam is higher than the signal quality of the first activated beam by a third threshold.

[0585] In some examples, the first bitmap can include N bits, the N bits corresponding to the N reported new beams one by one, each of the N bits being used to indicate whether each of the N reported new beams satisfies the event condition. For example, an i th bit of the N bits is used to indicate whether an i th new beam of the N reported new beams satisfies the event condition. Wherein i is a positive integer less than or equal to N. For example, a 1 st bit of the N bits is used to indicate whether a 1 st new beam of the N reported new beams satisfies the event condition, a 2 nd bit of the N bits is used to indicate whether a 2 nd new beam of the N reported new beams satisfies the event condition, and so on.

[0586] Exemplarily, the bit value of '1' can represent that the new beam corresponding to the bit satisfies the event condition, and the bit value of '0' represents that the new beam corresponding to the bit does not satisfy the event condition. Alternatively, the bit value of '0' represents that the new beam corresponding to the bit satisfies the event condition, and the bit value of '1' represents that the new beam corresponding to the bit does not satisfy the event condition.

[0587] For example, the event a is the second event, and whether the event condition is satisfied can be understood as whether the signal quality of the new beam is higher than the signal quality of the serving beam by a second threshold.

[0588] For another example, the event a is the third event, and whether the event condition is satisfied can be understood as whether the signal quality of the new beam is higher than the signal quality of the first activated beam by a third threshold.

[0589] In some examples, the first bit map can include N bits, the N bits correspond to the N second fields one by one, and each of the Z bits in the N bits can be used to indicate whether each of the N reported new beams satisfies the event condition.

[0590] For example, the i th bit of the N bits is used to indicate whether the i th new beam in the N reported new beams satisfies the event condition. Wherein, i is a positive integer less than or equal to N. For example, the 1 st bit of the N bits is used to indicate whether the 1 st new beam in the N reported new beams satisfies the event condition, the 2 nd bit of the N bits is used to indicate whether the 2 nd new beam in the N reported new beams satisfies the event condition, and so on.

[0591] In other examples, the first bit map can include N bits, the N bits correspond to the N second fields one by one, and each of the Z bits in the N bits can be used to indicate whether each of the Z reported new beams satisfies the event condition, and the N-Z bits are meaningless. For example, the Z bits can be the first Z bits of the N bits, and the N-Z bits described above can be the last N-Z bits of the N bits. For another example, the Z bits can be the last Z bits of the N bits, and the N-Z bits described above can be the first N-Z bits of the N bits.

[0592] For example, the i th bit of the Z bits is used to indicate whether the i th new beam in the Z reported new beams satisfies the event condition. Wherein, i is a positive integer less than or equal to Z. For example, the 1 st bit of the Z bits is used to indicate whether the 1 st new beam in the Z reported new beams satisfies the event condition, the 2 nd bit of the Z bits is used to indicate whether the 2 nd new beam in the Z reported new beams satisfies the event condition, and so on.

[0593] For example, the bit value of '1' can represent that the new beam corresponding to the bit satisfies the event condition, and the bit value of '0' can represent that the new beam corresponding to the bit does not satisfy the event condition. Or, the bit value of '0' can represent that the new beam corresponding to the bit satisfies the event condition, and the bit value of '1' can represent that the new beam corresponding to the bit does not satisfy the event condition.

[0594] For example, the event a is the second event, and whether the event condition is satisfied can be understood as whether the signal quality of the new beam is higher than the signal quality of the serving beam by a second threshold. For another example, the event a is the third event, and whether the event condition is satisfied can be understood as whether the signal quality of the new beam is higher than the signal quality of the first activated beam by a third threshold.

[0595] In some examples, the first bit bitmap includes Z bits, the Z bits correspond to the Z reported new beams one by one, and each of the Z bits is used to indicate whether each of the Z reported new beams satisfies the event condition.

[0596] For example, the i th bit of the Z bits is used to indicate whether the i th new beam of the Z reported new beams satisfies the event condition. Wherein, i is a positive integer less than or equal to Z. For example, the 1 st bit of the Z bits is used to indicate whether the 1 st new beam of the Z reported new beams satisfies the event condition, the 2 nd bit of the Z bits is used to indicate whether the 2 nd new beam of the Z reported new beams satisfies the event condition, and so on.

[0597] For example, the bit value of '1' can represent that the new beam corresponding to the bit satisfies the event condition, and the bit value of '0' can represent that the new beam corresponding to the bit does not satisfy the event condition. Or, the bit value of '0' can represent that the new beam corresponding to the bit satisfies the event condition, and the bit value of '1' can represent that the new beam corresponding to the bit does not satisfy the event condition.

[0598] For example, the event a is the second event, and whether the event condition is satisfied can be understood as whether the signal quality of the new beam is higher than the signal quality of the serving beam by a second threshold. For another example, the event a is the third event, and whether the event condition is satisfied can be understood as whether the signal quality of the new beam is higher than the signal quality of the first activated beam by a third threshold.

[0599] In other examples, the first bit bitmap includes Z-1 bits, the Z-1 bits correspond to Z-1 new beams of the Z reported new beams except for the new beam with the highest signal quality one by one, and each of the Z-1 bits is used to indicate whether each of the Z-1 reported new beams satisfies the event condition.

[0600] For example, the i th bit of the Z-1 bits is used to indicate whether the i th new beam of the reported Z-1 new beams satisfies the event condition. Wherein, i is a positive integer less than or equal to Z-1. For example, the 1 st bit of the Z-1 bits is used to indicate whether the 1 st new beam of the reported Z-1 new beams satisfies the event condition, the 2 nd bit of the Z-1 bits is used to indicate whether the 2 nd new beam of the reported Z-1 new beams satisfies the event condition, and so on.

[0601] For example, when the bit value is ‘1’, it can represent that the new beam corresponding to the bit satisfies the event condition, and when the bit value is ‘0’, it represents that the new beam corresponding to the bit does not satisfy the event condition. Or, when the bit value is ‘0’, it represents that the new beam corresponding to the bit satisfies the event condition, and when the bit value is ‘1’, it represents that the new beam corresponding to the bit does not satisfy the event condition.

[0602] For example, the event a is the second event, and whether the event condition is satisfied can be understood as whether the signal quality of the new beam is higher than the signal quality of the serving beam by a second threshold. For another example, the event a is the third event, and whether the event condition is satisfied can be understood as whether the signal quality of the new beam is higher than the signal quality of the first activated beam by a third threshold.

[0603] Optionally, the field carrying the first bitmap can be located before or after the N second fields, or before or after the N fourth fields. The first bitmap includes N bits, and the N bits can be placed continuously. The first bitmap can include Z bits, and the Z bits can be placed continuously. The first bitmap can include Z-1 bits, and the Z-1 bits can be placed continuously.

[0604] Optionally, the first bitmap includes N bits, and each bit of the N bits can be located before (or after) each of the N second fields, and / or before (or after) each of the N fourth fields. The above example can also be understood as that before or after each of the second fields or the fourth fields, there is a bit for indicating whether the beam corresponding to the second field or the fourth field satisfies the event condition.

[0605] Optionally, the first bitmap includes Z bits, each of the Z bits can be located before (or after) each of Z second fields (corresponding to resource indexes of Z beams or new beams) in the N second fields, and / or before (or after) each of Z fourth fields (corresponding to signal quality information of Z beams or new beams) in the N fourth fields. The above example can also be understood as before or after the resource index field (or the second field carrying the resource index of the new beam) or the signal quality information field (or the fourth field carrying the signal quality information of the new beam) of each reported new beam, there is a bit for indicating whether the beam corresponding to the second field or the fourth field meets the event condition.

[0606] Optionally, the first bitmap includes Z-1 bits, each of the Z-1 bits can be located before (or after) each of Z-1 second fields (corresponding to resource indexes of Z-1 beams or new beams) in the N second fields, and / or before (or after) each of Z fourth fields (corresponding to signal quality information of Z-1 beams or new beams) in the N fourth fields. The above example can also be understood as before or after the resource index field (or the second field carrying the resource index of the new beam) or the signal quality information field (or the fourth field carrying the signal quality information of the new beam) of each reported new beam except the new beam with the best signal quality, there is a bit for indicating whether the beam corresponding to the second field or the fourth field meets the event condition.

[0607] The following takes the eighth field as an example to introduce an example of the second bitmap.

[0608] In some examples, the second bitmap can include N bits, the N bits correspond to the N reported new beams one by one, and each of the N bits is used to indicate whether each of the N reported new beams meets the event condition D times within the first time window. For example, the i th bit of the N bits is used to indicate whether the i th new beam in the N reported new beams meets the event condition D times within the first time window. Wherein, i is a positive integer less than or equal to N. For example, the 1 st bit of the N bits is used to indicate whether the 1 st new beam in the N reported new beams meets the event condition D times within the first time window, the 2 nd bit of the N bits is used to indicate whether the 2 nd new beam in the N reported new beams meets the event condition D times within the first time window, and so on.

[0609] For example, when the bit value is '1', it can indicate that the new beam corresponding to the bit satisfies the event condition D times in the first time window, and when the bit value is '0', it indicates that the new beam corresponding to the bit does not satisfy the event condition D times in the first time window. Alternatively, when the bit value is '0', it indicates that the new beam corresponding to the bit satisfies the event condition D times in the first time window, and when the bit value is '1', it indicates that the new beam corresponding to the bit does not satisfy the event condition D times in the first time window.

[0610] For example, the event a is the second event, and "satisfying the event condition D times in the first time window" can be understood as whether the signal quality of the reported new beam is higher than the signal quality of the serving beam by the second threshold D times in the first time window.

[0611] For another example, the event a is the third event, and "satisfying the event condition D times in the first time window" can be understood as whether the signal quality of the reported new beam is higher than the signal quality of the first activated beam by the third threshold D times in the first time window.

[0612] Taking the third event as an example, if the terminal device measures a new beam in the first time window, and the measured signal quality of the new beam is higher than the signal quality of the first beam by the third threshold more than or equal to D times, the new beam satisfies the event condition corresponding to the third event.

[0613] In some examples, the second bit map can include N-1 bits, and the N-1 bits correspond to N-1 new beams of the reported N new beams one by one, and each bit of the N-1 bits is used to indicate whether each of the N-1 new beams of the reported N new beams satisfies the event condition D times in the first time window. For example, the i-1th bit of the N-1 bits is used to indicate whether the i-1th new beam of the reported N-1 new beams satisfies the event condition D times in the first time window. Wherein, i is a positive integer greater than 1 and less than or equal to N. For example, the 1th(i=2) bit of the N-1 bits is used to indicate whether the 1th new beam of the N-1 new beams of the reported N new beams satisfies the event condition D times in the first time window, the 2th(i=3) bit of the N-1 bits is used to indicate whether the 2th new beam of the N-1 new beams of the reported N new beams satisfies the event condition D times in the first time window, and so on.

[0614] Exemplarily, the bit value of '1' can represent that the new beam corresponding to the bit satisfies the event condition D times within the first time window, and the bit value of '0' represents that the new beam corresponding to the bit does not satisfy the event condition D times within the first time window. Alternatively, the bit value of '0' represents that the new beam corresponding to the bit satisfies the event condition D times within the first time window, and the bit value of '1' represents that the new beam corresponding to the bit does not satisfy the event condition D times within the first time window.

[0615] For example, the event a is the second event, and whether the event condition is satisfied D times within the first time window can be understood as whether the signal quality of the new beam is higher than the signal quality of the serving beam by the second threshold D times within the first time window.

[0616] For another example, the event a is the third event, and whether the event condition is satisfied D times within the first time window can be understood as whether the signal quality of the new beam is higher than the signal quality of the first activated beam by the third threshold D times within the first time window.

[0617] In some examples, the second bit map can include N bits, the N bits correspond to the N second fields one by one, and each of the Z bits in the N bits can be used to indicate whether each of the N reported new beams satisfies the event condition D times within the first time window.

[0618] For example, the i th bit of the N bits is used to indicate whether the i th new beam in the N reported new beams satisfies the event condition D times within the first time window. Wherein, i is a positive integer less than or equal to N. For example, the 1 st bit of the N bits is used to indicate whether the 1 st new beam in the N reported new beams satisfies the event condition D times within the first time window, the 2 nd bit of the N bits is used to indicate whether the 2 nd new beam in the N reported new beams satisfies the event condition D times within the first time window, and so on.

[0619] In other examples, the second bit map can include N bits, the N bits correspond to the N second fields one by one, and each of the Z bits in the N bits can be used to indicate whether each of the Z reported new beams satisfies the event condition D times within the first time window, and the N-Z bits are meaningless. For example, the Z bits can be the first Z bits of the N bits, and the N-Z bits described above can be the last N-Z bits of the N bits. For another example, the Z bits can be the last Z bits of the N bits, and the N-Z bits described above can be the first N-Z bits of the N bits.

[0620] For example, the i th bit of the Z bits is used to indicate whether the i th new beam of the reported Z new beams meets the event condition D times within the first time window. Wherein i is a positive integer less than or equal to Z. For example, the 1 st bit of the Z bits is used to indicate whether the 1 st new beam of the reported Z new beams meets the event condition, the 2 nd bit of the Z bits is used to indicate whether the 2 nd new beam of the reported Z new beams meets the event condition, and so on.

[0621] For example, when the bit value is '1', it can represent that the new beam corresponding to the bit meets the event condition D times within the first time window, and when the bit value is '0', it represents that the new beam corresponding to the bit does not meet the event condition D times within the first time window. Or, when the bit value is '0', it represents that the new beam corresponding to the bit meets the event condition D times within the first time window, and when the bit value is '1', it represents that the new beam corresponding to the bit does not meet the event condition D times within the first time window.

[0622] For example, the event a is the second event, and whether the event condition is met D times within the first time window can be understood as whether the signal quality of the new beam is higher than the signal quality of the serving beam by the second threshold D times within the first time window. For another example, the event a is the third event, and whether the event condition is met D times within the first time window can be understood as whether the signal quality of the new beam is higher than the signal quality of the first activated beam by the third threshold D times within the first time window.

[0623] In some examples, the second bit map includes Z bits, the Z bits correspond to the Z reported new beams one by one, and each bit of the Z bits is used to indicate whether each new beam of the reported Z new beams meets the event condition D times within the first time window.

[0624] For example, the i th bit of the Z bits is used to indicate whether the i th new beam of the reported Z new beams meets the event condition D times within the first time window. Wherein i is a positive integer less than or equal to Z. For example, the 1 st bit of the Z bits is used to indicate whether the 1 st new beam of the reported Z new beams meets the event condition D times within the first time window, the 2 nd bit of the Z bits is used to indicate whether the 2 nd new beam of the reported Z new beams meets the event condition D times within the first time window, and so on.

[0625] For example, when the bit value is '1', it can represent that the new beam corresponding to the bit satisfies the event condition D times within the first time window, and when the bit value is '0', it represents that the new beam corresponding to the bit does not satisfy the event condition D times within the first time window. Alternatively, when the bit value is '0', it represents that the new beam corresponding to the bit satisfies the event condition D times within the first time window, and when the bit value is '1', it represents that the new beam corresponding to the bit does not satisfy the event condition D times within the first time window.

[0626] For example, the event a is the second event, and whether the event condition is satisfied D times within the first time window can be understood as whether the signal quality of the new beam is higher than the signal quality of the serving beam by the second threshold D times within the first time window. For another example, the event a is the third event, and whether the event condition is satisfied D times within the first time window can be understood as whether the signal quality of the new beam is higher than the signal quality of the first activated beam by the third threshold D times within the first time window.

[0627] In some examples, the second bit map includes Z-1 bits, and each of the Z-1 bits is used to indicate whether each of the Z-1 reported new beams satisfies the event condition D times within the first time window.

[0628] For example, the i th bit of the Z-1 bits is used to indicate whether the i th new beam of the Z-1 reported new beams satisfies the event condition D times within the first time window. Wherein, i is a positive integer less than or equal to Z-1. For example, the 1 st bit of the Z-1 bits is used to indicate whether the 1 st new beam of the Z-1 reported new beams satisfies the event condition D times within the first time window, the 2 nd bit of the Z-1 bits is used to indicate whether the 2 nd new beam of the Z-1 reported new beams satisfies the event condition D times within the first time window, and so on.

[0629] For example, when the bit value is '1', it can represent that the new beam corresponding to the bit satisfies the event condition D times within the first time window, and when the bit value is '0', it represents that the new beam corresponding to the bit does not satisfy the event condition D times within the first time window. Alternatively, when the bit value is '0', it represents that the new beam corresponding to the bit satisfies the event condition D times within the first time window, and when the bit value is '1', it represents that the new beam corresponding to the bit does not satisfy the event condition D times within the first time window.

[0630] For example, the event a is the second event, and whether the event condition D is met for the first time window can be understood as whether the signal quality of the new beam is higher than the signal quality of the serving beam by the second threshold D times within the first time window. For another example, the event a is the third event, and whether the event condition D is met for the first time window can be understood as whether the signal quality of the new beam is higher than the signal quality of the first activated beam by the third threshold D times within the first time window.

[0631] Optionally, the field carrying the second bitmap can be located before or after the N second fields, or before or after the N fourth fields. The second bitmap includes N bits, and the N bits can be placed continuously. The second bitmap can include Z bits, and the Z bits can be placed continuously. The second bitmap can include Z-1 bits, and the Z-1 bits can be placed continuously.

[0632] Optionally, the second bitmap includes N bits, and each bit of the N bits can be located before (or after) each of the N second fields, and / or before (or after) each of the N fourth fields. The above example can also be understood as that before or after each of the second fields or the fourth fields, there is a bit for indicating whether the beam corresponding to the second field or the fourth field meets the event condition.

[0633] Optionally, the second bitmap includes Z bits, and each bit of the Z bits can be located before (or after) each of the Z second fields (corresponding to the resource indexes of the Z beams or the new beam) in the N second fields, and / or before (or after) each of the Z fourth fields (corresponding to the signal quality information of the Z beams or the new beam) in the N fourth fields. The above example can also be understood as that before or after each of the resource index fields (or the second fields carrying the resource indexes of the new beam) or the signal quality information fields (or the fourth fields carrying the signal quality information of the new beam) of the reported new beams, there is a bit for indicating whether the beam corresponding to the second field or the fourth field meets the event condition.

[0634] Optionally, the second bitmap includes Z-1 bits, each of the Z-1 bits can be located before (or after) each of Z-1 second fields (corresponding to resource indexes of the Z-1 beams or new beams) in the N second fields, and / or before (or after) each of Z fourth fields (corresponding to signal quality information of the Z-1 beams or new beams) in the N fourth fields. The above example can also be understood as, in addition to the new beam with the maximum signal quality, before or after the resource index field (or the second field carrying the resource index of the new beam) or the signal quality information field (or the fourth field carrying the signal quality information of the new beam) of each reported new beam, there is a bit for indicating whether the beam corresponding to the second field or the fourth field satisfies the event condition.

[0635] The following takes the seventh field as an example to introduce some examples of the second information.

[0636] Optionally, the seventh field carries the second information. The second information can be used to indicate a second beam. The second beam can be a beam or a new beam with the minimum signal quality among the beams or new beams reported by the terminal device and satisfying the event condition (or referred to as the condition of event occurrence).

[0637] Taking the event a as the second event as an example, in some examples, the seventh field can carry the second information. The second information can be used to indicate a beam or a new beam with the minimum signal quality among the beams or new beams reported by the terminal device and having a signal quality higher than that of the serving beam by a second threshold (i.e., the second beam).

[0638] For example, the second information can be used to indicate which of the N second fields (or Z second fields in the N second fields) corresponds to a beam or a new beam having a signal quality higher than that of the serving beam by the second threshold, and which has the lowest signal quality among the beams or new beams having a signal quality higher than that of the serving beam by the second threshold.

[0639] For another example, the second information can be used to indicate which of the N fourth fields (or Z fourth fields in the N fourth fields) corresponds to a beam or a new beam having a signal quality higher than that of the serving beam by the second threshold, and which has the lowest signal quality among the beams or new beams having a signal quality higher than that of the serving beam by the second threshold. For another example, the second information can be used to indicate which of the N beams (or Z beams) reported by the terminal device has a signal quality higher than that of the serving beam by the second threshold, and which has the lowest signal quality among the beams having a signal quality higher than that of the serving beam by the second threshold.

[0640] For another example, the second information can be used to indicate which of the N new beams (or Z new beams) reported by the terminal device has a signal quality higher than that of the serving beam by the second threshold, and among the new beams having a signal quality higher than that of the serving beam by the second threshold, the beam with the lowest signal quality.

[0641] For another example, the second information can be used to indicate which of the N new beams (or Z new beams) reported by the terminal device has a signal quality higher than that of the serving beam by the second threshold, and among the new beams having a signal quality higher than that of the serving beam by the second threshold, the beam with the lowest signal quality.

[0642] For another example, the second information can be used to indicate which of the N new beams (or Z new beams) reported by the terminal device has a signal quality higher than that of the serving beam by the second threshold, and among the new beams having a signal quality higher than that of the serving beam by the second threshold, the beam with the lowest signal quality.

[0643] For another example, the second information can be used to indicate which of the N new beams (or Z new beams) reported by the terminal device has a signal quality higher than that of the serving beam by the second threshold, and among the new beams having a signal quality higher than that of the serving beam by the second threshold, the beam with the lowest signal quality.

[0644] For another example, the second information can be used to indicate which of the N new beams (or Z new beams) reported by the terminal device has a signal quality higher than that of the serving beam by the second threshold, and among the new beams having a signal quality higher than that of the serving beam by the second threshold, the beam with the lowest signal quality.

[0645] For another example, the second information can be used to indicate which of the N new beams (or Z new beams) reported by the terminal device has a signal quality higher than that of the serving beam by the second threshold, and among the new beams having a signal quality higher than that of the serving beam by the second threshold, the beam with the lowest signal quality.

[0646] For another example, the second information can be used to indicate which of the N new beams (or Z new beams) reported by the terminal device has a signal quality higher than that of the serving beam by the second threshold, and among the new beams having a signal quality higher than that of the serving beam by the second threshold, the beam with the lowest signal quality.

[0647] For another example, the second information can be used to indicate which of the N new beams (or Z new beams) reported by the terminal device has a signal quality higher than that of the serving beam by the second threshold, and among the new beams having a signal quality higher than that of the serving beam by the second threshold, the beam with the lowest signal quality.

[0648] Taking the second event a as an example, the eighth field can carry third information in some examples. The third information can be used to indicate that, among the beams or new beams reported by the terminal device, the beam or new beam with the signal quality higher than the signal quality of the serving beam by the second threshold for D times within the first time window is the beam with the minimum reported signal quality (denoted as a third beam) among the beams or new beams with the signal quality higher than the signal quality of the serving beam by the second threshold.

[0649] For example, the third information can be used to indicate, among the N second fields (or Z second fields of the N second fields), which second field corresponds to the beam or new beam with the signal quality higher than the signal quality of the serving beam by the second threshold for D times within the first time window, and among the beams or new beams with the signal quality higher than the signal quality of the serving beam by the second threshold, the beam or new beam with the minimum reported signal quality (for example, the signal quality indicated by the signal quality information carried in the fourth field).

[0650] For another example, the third information can be used to indicate, among the N fourth fields (or Z fourth fields of the N fourth fields), which fourth field corresponds to the beam or new beam with the signal quality higher than the signal quality of the serving beam by the second threshold for D times within the first time window, and among the beams or new beams with the signal quality higher than the signal quality of the serving beam by the second threshold, the beam or new beam with the minimum reported signal quality.

[0651] For another example, the third information can be used to indicate, among the N beams (or Z beams) reported by the terminal device, which beam has the signal quality higher than the signal quality of the serving beam by the second threshold for D times within the first time window, and among the beams with the signal quality higher than the signal quality of the serving beam by the second threshold, the beam with the minimum reported signal quality.

[0652] For another example, the third information can be used to indicate, among the N new beams (or Z new beams) reported by the terminal device, which new beam has the signal quality higher than the signal quality of the serving beam by the second threshold for D times within the first time window, and among the new beams with the signal quality higher than the signal quality of the serving beam by the second threshold, the new beam with the minimum reported signal quality.

[0653] Taking the third event a as an example, the eighth field can carry third information. The third information can be used to indicate, among the beams or new beams reported by the terminal device, the beam or new beam with the signal quality higher than the signal quality of the first activated beam by the third threshold for D times within the first time window is the beam with the minimum reported signal quality (denoted as a third beam) among the beams or new beams with the signal quality higher than the signal quality of the first activated beam by the third threshold.

[0654] For example, the third information can be used to indicate which of the N second fields (or Z of the N second fields) corresponds to a beam or a new beam that has D times of signal quality higher than the third threshold than the first active beam within the first time window, and among the beams or new beams with signal quality higher than the third threshold than the first active beam, the reported signal quality (e.g., the signal quality indicated by the signal quality information carried in the fourth field) is the lowest.

[0655] For another example, the third information can be used to indicate which of the N fourth fields (or Z of the N fourth fields) corresponds to a beam or a new beam that has D times of signal quality higher than the third threshold than the first active beam within the first time window, and among the beams or new beams with signal quality higher than the third threshold than the first active beam, the reported signal quality is the lowest.

[0656] For another example, the third information can be used to indicate which of the N beams (or Z beams) reported by the terminal device has D times of signal quality higher than the third threshold than the first active beam within the first time window, and among the beams with signal quality higher than the third threshold than the first active beam, the reported signal quality is the lowest.

[0657] For another example, the third information can be used to indicate which of the N new beams (or Z new beams) reported by the terminal device has D times of signal quality higher than the third threshold than the first active beam within the first time window, and among the new beams with signal quality higher than the third threshold than the first active beam, the reported signal quality is the lowest.

[0658] In some possible implementations, the network device can determine the signal quality of a beam (denoted as a second beam) indicated by the second information according to the second information. For example, the network device can find the fourth field corresponding to the second beam, and thus determine the signal quality of the second beam.

[0659] Further, optionally, the network device can determine that a beam or a new beam of the reported beams or new beams, whose signal quality is greater than or equal to the signal quality of the second beam, satisfies an event condition. The network device can determine that a beam or a new beam of the reported beams or new beams, whose signal quality is less than the signal quality of the second beam, does not satisfy the event condition.

[0660] In some possible implementations, the network device can determine the signal quality of a beam (denoted as a third beam) indicated by the third information according to the third information. For example, the network device can find the fourth field corresponding to the third beam, and thus determine the signal quality of the third beam.

[0661] Further, optionally, the network device can determine that, among the reported beams or new beams, a beam or a new beam with a signal quality greater than or equal to the signal quality of the third beam satisfies the event condition. The network device can determine that, among the reported beams or new beams, a beam or a new beam with a signal quality less than the signal quality of the third beam does not satisfy the event condition.

[0662] The following describes specific examples of the second information and the third information.

[0663] Exemplarily, the second information can include a reference signal index, a TCI state index, a codepoint index, or a relative beam index. The reference signal index, the TCI state index, the codepoint index, or the relative beam index can correspond to the second beam.

[0664] Exemplarily, the third information can include a reference signal index, a TCI state index, a codepoint index, or a relative beam index. The reference signal index, the TCI state index, the codepoint index, or the relative beam index can correspond to the third beam.

[0665] The reference signal index, the TCI state index, and the codepoint index are described above, and are not described herein again.

[0666] The following describes an example of the relative beam index.

[0667] The relative beam index can be an index of one beam or new beam in N beams or new beams (or Z beams or new beams) reported by the terminal device. For example, the terminal device reports 4 beams (or new beams), and the 4 beams (or new beams) can be renumbered as relative beam indexes of the 4 beams (or new beams).

[0668] For ease of description, the following describes the number of beams or new beams reported by the terminal device as F. In this way, F second fields in the N second fields respectively carry resource indexes of F beams or new beams. F fourth fields in the N fourth fields respectively carry signal quality information of the F beams or new beams.

[0669] Wherein, F is a positive integer. F can be equal to N, or equal to Z.

[0670] In some examples, a second field corresponding to a beam or new beam with the largest signal quality in the F beams or new beams can be located at the first (or the last) of the F second fields. The following describes two index examples, respectively denoted as index example 1 and index example 2.

[0671] Index example 1: the relative beam index of the beam or new beam with the largest signal quality in the F beams or new beams is G, and the relative beam indexes of the F-1 beams or new beams (i.e., the beams or new beams other than the beam or new beam with the largest signal quality in the F beams or new beams) are integers greater than G. For example, they are G+1, G+2, …, G+F-1 in order from front to back (or from back to front).

[0672] In other words, the relative beam index of the beam or new beam corresponding to the first (or last) of the F second fields is G.

[0673] The above G can also be referred to as the smallest relative beam index, or the starting point of the relative beam index.

[0674] For example, the relative beam index of the beam or new beam with the largest signal quality in the F beams or new beams is 0 (i.e., G=0), and the relative beam indexes of the remaining beams are sequentially increased, for example, 1, 2, …, F-1 in order from front to back.

[0675] In the above index example 1, the relative beam index starts from the beam or new beam with the largest signal quality. At least one of the beams and new beams reported by the terminal device can satisfy the event condition, so the relative beam index can be the index of the second beam or the third beam. In other words, in the relative beam index, there is always an index of the beam or new beam with the smallest signal quality in the beam or new beam that satisfies the event condition.

[0676] Optionally, the length of the seventh field or the eighth field is Optionally, the length of the seventh field or the eighth field is 2 (for example, fixed as 2). The seventh field or the eighth field can be used to carry the relative beam index. In the case where the value indicated by the relative beam index is greater than F-1, the value is meaningless (or the field is meaningless).

[0677] Index example 2: the second field corresponding to the beam or new beam with the largest signal quality in the F beams or new beams can be located at the first (or last) of the F second fields. The relative beam index of the beam or new beam corresponding to the second (or the second from the end) of the F second fields is G, and the relative beam indexes of the F-2 second fields (i.e., the second fields other than the first two second fields or the last two second fields in the F second fields) are integers greater than G. For example, they are G+1, G+2, …, G+F-2 in order from front to back (or from back to front).

[0678] In other words, the beam or new beam corresponding to the first (or last) of the F second fields has no relative beam index, and the beam or new beam corresponding to the second (or second last) of the F second fields has a relative beam index of G.

[0679] The G can also be referred to as the smallest relative beam index, or the starting point of the relative beam index.

[0680] For example, among the F beams or new beams, the relative beam index of the first beam or new beam after the beam or new beam with the best signal quality is 0 (i.e., G = 0), and the relative beam indexes of the remaining beams are sequentially increased, for example, sequentially from front to back as 1, 2, …, F-2.

[0681] In the above index example 2, the relative beam index does not start from the beam or new beam with the best signal quality. Therefore, the relative beam index can not correspond to the second beam or the third beam. For example, in the case where the second beam or the third beam is the beam or new beam with the best signal quality, the relative beam index does not correspond to the second beam or the third beam. In other words, in the relative beam index, there is not necessarily always an index of the beam or new beam with the smallest signal quality among the beams or new beams that meet the event condition.

[0682] Optionally, the second information or the third information includes first indication information, the first indication information being used to indicate the relative beam index or the beam or new beam with the best signal quality among the beams or new beams reported by the terminal device.

[0683] For example, in the index example 2, in the case where the relative beam index can indicate the second beam or the third beam, the first indication information can indicate the relative beam index. In the case where the relative beam index cannot indicate the second beam or the third beam (for example, the second beam or the third beam is the beam or new beam with the best signal quality among the beams or new beams reported by the terminal device), the first indication information can indicate the second beam or the third beam, i.e., indicate the beam or new beam with the best signal quality among the beams or new beams reported by the terminal device.

[0684] In some examples, the length of the seventh field or the eighth field is related to F.

[0685] For example, in the case where F-1 is an exponential multiple of 2, the length of the seventh field or the eighth field can be For example, the value of the first indication information is 0 to F-1, which corresponds to the relative beam index G to G+F-1, respectively. The value of the first indication information is F~2 F Any one or more values in -1 can be special information, for example, all bits are 1, i.e., the value of the first indication information is 2 F-1. The special information can indicate a beam or a new beam with the largest signal quality among the beams or new beams reported by the terminal device. In this way, in a case where the value of the first indication information is the special information, the network device can determine that the second beam or the third beam is a beam or a new beam with the largest signal quality among the beams or new beams reported by the terminal device.

[0686] As a specific example, F = 3, and the length of the seventh field or the eighth field is 2. Then, the values 0 and 1 of the first indication information can be used as relative beam indexes, and the corresponding binary is 00, 01. The values 2 and / or 3 of the first indication information can be used as special information, and the corresponding binary is 10, 11.

[0687] For another example, in a case where F-1 is not an exponential multiple of 2, the length of the seventh field or the eighth field can be For example, the values 0, 1, …, F-1 of the first indication information can correspond to relative beam indexes G to G+F-1, respectively. The values F~2 F- 1 Any one or more values in the range of 0~F-1 can be used as special information, for example, all bits are 1, that is, the value of the first indication information is 2 F-1 -1.

[0688] As a specific example, F = 4, and the length of the seventh field or the eighth field is 2. Then, the values 0, 1, 2 of the first indication information can be used as relative beam indexes, and the corresponding binary is 00, 01, 10. The value 3 of the first indication information can be used as special information, and the corresponding binary is 11.

[0689] As another specific example, F = 2, and the length of the seventh field or the eighth field is 1. Then, the value 0 of the first indication information can be used as a relative beam index, and the corresponding binary is 0. The value 1 of the first indication information can be used as special information, and the corresponding binary is 1.

[0690] Optionally, in a case where F = 1, the seventh field or the eighth field does not exist. Alternatively, the seventh field or the eighth field is meaningless, and the length of the seventh field or the eighth field is 1 or 2.

[0691] In other examples, the length of the seventh field or the eighth field is 2. For example, in a case where the value of the first indication information is greater than F-2, the first indication information can be used as special information.

[0692] The special information can indicate a beam or a new beam with the largest signal quality among the beams or new beams reported by the terminal device. In this way, in a case where the value of the first indication information is the special information, the network device can determine that the second beam or the third beam is a beam or a new beam with the largest signal quality among the beams or new beams reported by the terminal device.

[0693] Optionally, in some examples, the first CSI report may include a ninth field. This ninth field may indicate whether the first reference beam among the reported beams meets the event condition. The first reference beam may be the beam with the J-th highest signal quality among the reported beams, or it may be a new beam with the J-th highest signal quality among the reported new beams. J is a positive integer greater than or equal to 2. For example, J = 2.

[0694] In one example, the ninth field uses 1 bit of information to indicate, for instance, that a bit value of '1' indicates that the corresponding beam or new beam meets the event condition, and a bit value of '0' indicates that the corresponding beam or new beam does not meet the event condition. Alternatively, a bit value of '0' indicates that the corresponding beam or new beam meets the event condition, and a bit value of '1' indicates that the corresponding beam or new beam does not meet the event condition.

[0695] Optionally, further, the terminal device reports one or more new beams according to the following rules:

[0696] New beams that meet the event conditions are placed before the first reference beam, and new beams that do not meet the event conditions are placed after the first reference beam. Alternatively, new beams that meet the event conditions are placed after the first reference beam, and new beams that do not meet the event conditions are placed before the first reference beam.

[0697] For example, the above example can be understood as follows: the resource index of the new beam that meets the event conditions is placed before the resource index of the first reference beam, and correspondingly, the signal quality information of the new beam that meets the event conditions is placed before the signal quality of the first reference beam; the resource index of the new beam that does not meet the event conditions is placed after the resource index of the first reference beam, and correspondingly, the signal quality information of the new beam that does not meet the event conditions is placed after the signal quality of the first reference beam.

[0698] For example, the above example can also be understood as follows: the resource index of the new beam that meets the event conditions is placed after the resource index of the first reference beam, and correspondingly, the signal quality information of the new beam that meets the event conditions is placed after the signal quality of the first reference beam; the resource index of the new beam that does not meet the event conditions is placed before the resource index of the first reference beam, and correspondingly, the signal quality information of the new beam that does not meet the event conditions is placed before the signal quality of the first reference beam.

[0699] Optionally, the existence of the ninth field is determined based on one or more of the following, otherwise it does not exist:

[0700] At least one event includes a second event.

[0701] The at least one event comprises a third event.

[0702] The terminal device does not report the beam quality information of the serving beam. In other words, any field in the first CSI report does not carry the beam quality information of the serving beam. In other words, the first CSI report does not include a field carrying the beam quality information of the serving beam.

[0703] The network device does not configure the reporting of the serving beam or the beam quality information of the serving beam.

[0704] The terminal device does not report the beam quality information of the first active beam. In other words, any field in the first CSI report does not carry the beam quality information of the first active beam. In other words, the first CSI report does not include a field carrying the beam quality information of the first active beam.

[0705] The network device does not configure the reporting of the first active beam or the beam quality information of the first active beam.

[0706] Based on the above scheme, the first CSI report corresponding to event a can include one or more fields. The reporting format of the above first CSI report can be suitable for event-triggered reporting. For example, the first CSI report can include the first field to the ninth field, so that the format of the first CSI report can be compatible with multiple CSI reports triggered by multiple events (e.g., the first event to the third event) respectively. For another example, the first CSI report can flexibly include at least one of the first field to the ninth field, so that in the case of not reporting the information carried by some fields, the transmission overhead of the CSI report can be reduced.

[0707] Examples of different events and different formats of the first CSI report are introduced below.

[0708] Examples of the first CSI report including the first field are introduced below.

[0709] Optionally, in the case where the at least one event comprises the third event, the first CSI report includes the first field.

[0710] Optionally, in the case where the first information is reported when the third event occurs, the first CSI report includes the first field.

[0711] Optionally, in the case where the at least one event comprises the third event, and the first information is reported when the third event occurs, the first CSI report includes the first field.

[0712] At least one event includes the third event, which can be understood as that the third event is configured or activated. For example, the terminal device is configured or activated the third event by the network device, which can be understood as that the terminal device receives the configuration information (e.g., carried in RRC signaling) of the network device, and the configuration information includes the third event; or can be understood as that the terminal device receives the activation information (e.g., carried in MAC CE signaling or DCI signaling) of the network device, and the activation information includes the third event; or can be understood as that the protocol specifies the third event or the terminal device receives the configuration information (e.g., carried in RRC signaling) of the network device, and the configuration information includes the third event, and further, the terminal device receives the activation information (e.g., carried in MAC CE signaling or DCI signaling) of the network device, and the activation information includes the third event. For another example, the protocol specifies the third event.

[0713] The above examples can also be expressed as: the first field can be determined to exist according to any one or more of the following, otherwise it does not exist:

[0714] The third event is configured or activated.

[0715] The third event is configured or activated, and the first information is reported when the third event occurs.

[0716] The description that the first information is reported when the third event occurs can be referred to the previous examples, and will not be described here.

[0717] The following introduces an example that the first CSI report includes N second fields and N fourth fields.

[0718] Optionally, in the case that the at least one event includes the second event, the first CSI report includes the N second fields and the N fourth fields.

[0719] Optionally, in the case that the at least one event includes the third event, the first CSI report includes the N second fields and the N fourth fields.

[0720] Optionally, in the case that the at least one event includes the second event and the third event, the first CSI report includes the N second fields and the N fourth fields.

[0721] The at least one event includes the second event, which can be understood as the second event being configured or activated. For example, the terminal device is configured or activated by the network device, which can be understood as the terminal device receiving configuration information (for example, carried in RRC signaling) of the network device, the configuration information including the second event; it can also be understood that the terminal device receives activation information (for example, carried in MAC CE signaling or DCI signaling) of the network device, the activation information including the second event or being used to activate the second event; it can also be understood that the protocol specifies the second event or the terminal device receives configuration information (for example, carried in RRC signaling) of the network device, the configuration information including the second event, and further, the terminal device receives activation information (for example, carried in MAC CE signaling or DCI signaling) of the network device, the activation information including the second event or being used to activate the second event. For another example, the protocol specifies the second event.

[0722] The at least one event includes the second event and the third event, which can be understood as the second event and the third event being configured or activated. For example, the terminal device is configured or activated by the network device, which can be understood as the terminal device receiving configuration information (for example, carried in RRC signaling) of the network device, the configuration information including the second event and the third event; it can also be understood that the terminal device receives activation information (for example, carried in MAC CE signaling or DCI signaling) of the network device, the activation information including the second event and the third event, or the activation information being used to activate the second event and the third event; it can also be understood that the protocol specifies the second event and the third event or the terminal device receives configuration information (for example, carried in RRC signaling) of the network device, the configuration information including the second event and the third event, and further, the terminal device receives activation information (for example, carried in MAC CE signaling or DCI signaling) of the network device, the activation information including the second event and the third event, or the activation information being used to activate the second event and the third event. For another example, the protocol specifies the second event and the third event.

[0723] Examples of the at least one event including other events are described above and will not be repeated.

[0724] The above examples can also be expressed as: the N second fields and the N fourth fields can be determined according to any one or more of the following: if the N second fields and the N fourth fields are determined to exist, the N second fields and the N fourth fields exist; otherwise, the N second fields and the N fourth fields do not exist.

[0725] The at least one event includes the second event. Or, the second event is configured or activated.

[0726] The at least one event includes the third event. Or, the third event is configured or activated.

[0727] The following introduces an example in which the first CSI report includes a third field.

[0728] Optionally, the first CSI report includes the third field in a case where at least one of the following is met:

[0729] The at least one event includes a first event. Alternatively, the first event is configured.

[0730] The at least one event includes a first event (or alternatively, the first event is configured), and the first event is configured to report the serving beam or a resource index of the serving beam when the first event occurs.

[0731] The at least one event includes a third event. Alternatively, the third event is configured.

[0732] The at least one event includes a third event (or alternatively, the third event is configured), and the third event is configured to report the first beam or a beam index of the first beam when the third event occurs.

[0733] The above example can also be expressed as: the third field can be determined to exist according to any one or more of the above, and otherwise does not exist.

[0734] The following introduces an example in which the first CSI report includes a fifth field.

[0735] Optionally, the first CSI report includes the fifth field in a case where at least one of the following is met:

[0736] The at least one event includes a first event. Alternatively, the first event is configured.

[0737] The at least one event includes a second event (or alternatively, the second event is configured), and the second event is configured to report the serving beam or signal quality information of the serving beam when the second event occurs.

[0738] The at least one event includes a third event. Alternatively, the third event is configured.

[0739] The at least one event includes a third event (or alternatively, the third event is configured), and the third event is configured to report the first beam or signal quality information of the first beam when the third event occurs.

[0740] The above example can also be expressed as: the fifth field can be determined to exist according to any one or more of the above, and otherwise does not exist.

[0741] The following introduces an example in which the first CSI report includes the sixth field.

[0742] Optionally, in the case where the at least one event includes at least two events, the first CSI report includes the sixth field.

[0743] The above example can also be expressed as: the sixth field exists in the case where the at least one event includes at least two events (or, at least two events are configured), and does not exist otherwise.

[0744] The following introduces an example of determining the value of N.

[0745] In some possible implementation manners, the value of N is the maximum value of the number of beams corresponding to part or all of the at least one event.

[0746] The number of beams corresponding to the first event is 0 or 1.

[0747] The number of beams corresponding to the second event is the number of new beams or beams that need to be reported when the second event occurs. Alternatively, when the service beam is reported when the occurrence of the second event is not configured or when the service beam is not always reported when the occurrence of the second event is configured, the number of beams corresponding to the second event is the number of beams that need to be reported when the second event occurs; when the service beam is always reported when the occurrence of the second event is configured, the number of beams corresponding to the second event is the number of new beams that need to be reported when the second event occurs.

[0748] The number of beams corresponding to the third event is the number of new beams or beams that need to be reported when the third event occurs. Alternatively, when the first beam is reported when the occurrence of the third event is not configured or when the first beam is not always reported when the occurrence of the third event is configured, the number of beams corresponding to the third event is the number of beams that need to be reported when the third event occurs; when the first beam is always reported when the occurrence of the third event is configured, the number of beams corresponding to the second event is the number of new beams that need to be reported when the second event occurs.

[0749] The number of new beams that need to be reported can be understood as the number of configured new beams that need to be reported, or the number of configured new beams.

[0750] The number of beams that need to be reported can be understood as the number of configured beams that need to be reported, or the number of configured beams.

[0751] Exemplarily, N can be determined according to any one or more of the following:

[0752] Only the first event or at least one event includes only the first event is configured or activated, N = 0 or 1.

[0753] When only the second event is configured or activated (or the at least one event only includes the second event), or only the third event is configured or activated (or the at least one event only includes the third event), the network device can configure N. For example, when only the second event is configured or activated, the network device configures the number N of beams corresponding to the second event. For another example, when only the third event is configured or activated, the network device configures the number N of beams corresponding to the third event. If the network device does not configure N, N can take a default value. For example, N = 1 or 2.

[0754] When the second event and the third event are configured or activated (or the at least one event includes the second event and the third event).

[0755] The number of beams corresponding to the second event and the number of beams corresponding to the third event are the same, for example, both are N. N can be determined according to the configuration. If the network device does not configure the number of beams corresponding to the second event and the third event, N can take a default value, for example, N = 1 or 2.

[0756] The number of beams corresponding to the second event and the number of beams corresponding to the third event are independently configured, that is, the number of beams corresponding to the events is respectively configured (for example, the number of beams of the second event and the third event are A and B respectively). Then, N = max(A, B). If either A or B is not configured, A or B is replaced by a default value in the formula. If both A and B are not configured, both A and B are replaced by a default value in the formula. Alternatively, N takes a default value, for example, N = 1. For example, the default value of A and B can be 1.

[0757] The first event and the second event are configured, and the number of new beams that need to be reported when the second event occurs is A (configured as A or takes a default value when not configured), and N = max(1, A). Alternatively, N = max(0, A).

[0758] The first event and the third event are configured, and the number of new beams that need to be reported when the third event occurs is B (configured as B or takes a default value when not configured), and N = max(1, B). Alternatively, N = max(0, B).

[0759] The first event, the second event and the third event are configured, the number of new beams that need to be reported when the second event occurs is A (configured as A or takes a default value when not configured), the number of new beams that need to be reported when the third event occurs is B (configured as B or takes a default value when not configured), and N = max(1, A, B).

[0760] Wherein, max() represents the maximum value function.

[0761] Exemplarily, when the event information indicates the second event, if A < N, A+1~N-th fields in the N second fields and A+1~N-th fields in the N fourth fields are reserved unused.

[0762] Exemplarily, when the event information indicates the third event, if B < N, B+1~N-th fields in the N second fields and B+1~N-th fields in the N fourth fields are reserved unused.

[0763] Based on the above scheme, when the second event and the third event occur independently, the number of new beams that need to be reported can be reserved according to the maximum number of the number of new beams that need to be reported when the second event and the third event occur.

[0764] The following introduces an example of the signal quality information.

[0765] Optionally, the event a is the first event. The fifth field can be used to carry the signal quality information of the service beam.

[0766] The signal quality information of the service beam can be the signal quality of the service beam. In other words, the signal quality information of the service beam can indicate the signal quality of the service beam. For example, the signal quality of the service beam can be a numerical value of beam quality. For example, the numerical value of beam quality can be a quantized numerical value.

[0767] Exemplarily, the length of the fifth field is Y bits, and Y is a positive integer. In other words, the quantization length of beam quality can be Y. For example, Y = 7.

[0768] In the embodiments of the present application, the length can be replaced by "bit width" or "bit length". The length can be understood as "bit width" or "bit length".

[0769] Optionally, the event a is the second event, and / or, the second event occurs when the service beam or the signal quality information of the service beam is reported. The fifth field can be used to carry the signal quality information of the service beam.

[0770] The signal quality information of the service beam can be the difference between the signal quality of the service beam and the first signal quality. For example, the difference can be a quantized numerical value.

[0771] Exemplarily, the length of the fifth field is X bits, and X is a positive integer. In other words, the quantization length of the above-mentioned difference can be X.

[0772] Wherein, Y is greater than X. For example, Y = 7, X = 4.

[0773] The first signal quality can be the best signal quality among the signal qualities of the N new beams carried by the N second fields. For example, the N second fields carry N new beams, and the first signal quality can be the best signal quality among the signal qualities of the N new beams. For another example, the N second fields carry Z new beams, and the first signal quality can be the best signal quality among the signal qualities of the Z new beams.

[0774] Optionally, the event a is a third event. Optionally, the first beam is always reported when the third event occurs. The fifth field can be used to carry the signal quality information of the first beam.

[0775] The signal quality information of the first beam can be a difference between the signal quality of the first beam and the first signal quality. For example, the difference can be a quantized value. For example, the length of the fifth field is X bits, and X is a positive integer. In other words, the quantized length of the above difference can be X.

[0776] For example, Y=7 and X=4.

[0777] Based on the above scheme, according to the reported event information (or the occurred event), it can be determined whether the signal quality information carried by the fifth field is the signal quality information of the serving beam or the signal quality information of the first beam. The signal quality information of the first beam can be a difference between the best signal quality of the new beam and the signal quality of the first beam.

[0778] Optionally, the N fourth fields can be used to carry the signal quality information of the new beam.

[0779] The signal quality information of the new beam carried by the first fourth field of the N fourth fields can be the best signal quality of the new beam. The length of the above first fourth field is Y.

[0780] The signal quality information of the new beam carried by the other fields of the N fourth fields can be a difference between the new beam and the first signal quality. The length of the above other fields is X.

[0781] The following introduces a specific example of a format provided by an embodiment of the present application. For details, refer to Table 1.

[0782] Table 1

[0783] Exemplarily, the resource index or the beam index can comprise a CRI or a SSBRI. The signal quality information can comprise a signal quality or a differential signal quality. For example, the signal quality can be a L1-RSRP, or the differential signal quality can be a differential L1-RSRP. The L1-RSRP can be replaced by a L1-SINR, and the differential L1-RSRP can be replaced by a differential L1-SINR. The present application takes the L1-RSRP as an example.

[0784] The differential L1-RSRP of one beam can be a difference between the L1-RSRP of the beam and the L1-RSRP#1.

[0785] The following describes examples of the fields in Table 1.

[0786] • The sixth field (carrying event information):

[0787] The event information can indicate event information (for example, an event index) of an event that occurs, or indicate report content corresponding to which event the report corresponds to, or information for indicating whether the event occurs. Exemplarily, the event information can indicate information of event a (for example, an index of event a).

[0788] Exemplarily, event a can comprise a first event, a second event, a third event or other events, which are not limited by the present application. Other descriptions of the event information can be referred to the foregoing, and will not be described here.

[0789] • The first field#1 (carrying CRI or SSBRI#1):

[0790] If event a is the second event or the third event, the field can be used to carry a resource index of a reference signal corresponding to a (new) beam with the largest signal quality in the reported (new) beam. The resource index can be a CRI or a SSBRI#1.

[0791] If event a is the first event, the field is reserved.

[0792] • The second field#2-N (carrying CRI or SSBRI#2-N respectively):

[0793] If event a is the second event or the third event, the field can be used to carry a resource index of a (new) beam or a resource index of a reference signal corresponding to the (new) beam. The resource index can be a CRI or a SSBRI#2-N.

[0794] • The third field (carrying CRI or SSBRI#N+1):

[0795] For example, the at least one event includes the third event and / or the third event is configured to report the first beam, the third field exists; otherwise, the third field does not exist. In the case that the third field exists, the third field can be used to carry a beam index of the first beam. The beam index can be CRI or SSBRI #N+1.

[0796] • The fourth field #1 (carrying L1-RSRP #1):

[0797] If the event a is the second event or the third event, the field can be used to carry the signal quality of the (new) beam with the best signal quality among the reported (new) beams, i.e., the signal quality of the reference signal corresponding to CRI or SSBRI #1. For example, the signal quality can be L1-RSRP.

[0798] If the event a is the first event, the field can be used to carry the signal quality of the serving beam. For example, the signal quality can be L1-RSRP.

[0799] • The fourth field #2-N (carrying Differential L1-RSRP #2-N respectively):

[0800] If the event a is the second event or the third event, the above field can be used to carry the differential quality of the (new) beam respectively. The differential quality can be differential signal quality, for example, differential L1-RSRP. For example, the fourth field #i is used to indicate the differential L1-RSRP #i of one (new) beam, where the differential L1-RSRP #i is the difference between L1-RSRP #i and L1-RSRP #1. Wherein, i is an integer greater than or equal to 2 and less than or equal to N. Differential L1-RSRP #2-N correspond to the differential quality of the reference signal corresponding to CRI or SSBRI #2-N in turn.

[0801] If the event a is the first event, the field is reserved.

[0802] • The fifth field (carrying Differential L1-RSRP #N+1):

[0803] If the event a is the second event, if the second event is configured to always report the serving beam, the field can be used to carry the differential quality of the serving beam, otherwise, the field is reserved. For example, the differential quality of the serving beam can be the difference between the L1-RSRP of the serving beam and L1-RSRP #1.

[0804] If the event a is the third event and / or the first beam is reported when the third event occurs, the field can be used to carry the differential quality of the first beam, otherwise, the field is reserved. For example, the differential quality of the first beam can be the difference between the L1-RSRP of the first beam and the L1-RSRP#1.

[0805] If the event a is the first event, the field is reserved.

[0806] FIG. 14 is a schematic diagram of another format of CSI reporting provided by an embodiment of the present application. FIG. 14 shows the independent reporting format adopted by the first event, the second event and the third event respectively. FIG. 14 is merely exemplary and does not limit the present application. For example, the first CSI reporting can include at least one of the first field to the sixth field or other fields.

[0807] For example, the terminal device determines the maximum reporting space in the reporting space required by the events in the configuration from the reporting space required by the events.

[0808] For example, the first event, the second event and the third event are configured, wherein the first event corresponds to the maximum number of bits required by the reporting content, and the reporting space required by the first event is determined as the reporting space of the first CSI reporting.

[0809] The terminal device can fill the reporting content corresponding to each event. If the reporting content corresponding to the event is less than the determined reporting space, the remaining reporting space is reserved or a predefined value (for example, bit value 0) can be filled. For the reporting content corresponding to each event, refer to the foregoing and no longer be described.

[0810] In some possible implementations, before S840, the method 800 further includes S820. Details are described below in combination with FIG. 12.

[0811] S820, the network device sends the configuration information to the terminal device. Correspondingly, the terminal device receives the configuration information from the network device.

[0812] For example, the network device sends the configuration information to the terminal device, which can be sent through RRC signaling.

[0813] For example, the configuration information can include one or more event triggered reporting configurations.

[0814] For example, the event-triggered reporting configuration can be a CSI reporting configuration (CSI-ReportConfig), and an indication information (e.g., a report configuration type (reportConfigType) configured as event triggered (EventTriggered)) can be configured in the CSI-reportConfig to indicate that the reporting configuration is an event-triggered reporting configuration.

[0815] For another example, the CSI-reportConfig can contain event-related information, such as an event index, a threshold corresponding to the event, and the like. This can indicate that the reporting configuration is an event-triggered reporting configuration. The event-triggered reporting configuration can also be a dedicated event-triggered reporting configuration, such as an L1-event-triggered-CSI-reportConfig or a UE-initiated CSI-reportConfig.

[0816] For example, the event-triggered reporting configuration can contain at least one of the following information:

[0817] One or more reference signal resources can be used for channel measurement or interference measurement or beam management. For example, the one or more reference signal resources can be located in one or more reference signal resource sets.

[0818] Cell information can be used to indicate which cell the one or more reference signal resources correspond to, and / or which cell the reference signal resources of the monitoring event (e.g., the reference signal resources corresponding to the current beam and / or the new beam) correspond to. The cell can be a serving cell, such as a serving cell index or identifier corresponding to the cell, which can be a primary cell (Pcell), a secondary cell (Scell), or a primary secondary cell (PScell), wherein the Pcell can also be referred to as a PCC cell, the Scell can also be referred to as an SCC cell, an additional PCI corresponding to a cell adjacent to the serving cell, which can be referred to as a non-serving cell PCI, or a candidate cell, such as an L1 / L2-triggered mobility candidate cell (LTM candidate cell).

[0819] One or more event information, for example, one or more event index, or, an event table, contains one or more events. For example, the event can include the aforementioned first event, second event and third event.

[0820] In some possible implementation, before S840, the method 800 further includes S810. The following will be specifically introduced in combination with FIG. 12.

[0821] S810, the terminal device sends the capability information to the network device. Correspondingly, the network device receives the capability information from the terminal device.

[0822] The capability information can be used to indicate the capability of the terminal device, and the capability information can include one or more of the following:

[0823] The capability of whether the terminal device supports event triggered reporting.

[0824] The event information supported by the terminal device.

[0825] For example, if the terminal device reports the capability information, it means that the terminal device supports the capability. If the terminal device does not report the capability information, it means that the terminal device does not support the capability. For another example, if the terminal device reports the capability information, it means that the terminal device supports the capability. If the terminal device reports the capability information, it means that the terminal device does not support the capability. For another example, the terminal device can support the first capability, and then support the second capability. That is, the terminal device does not report the second capability, which means that the terminal device supports the second capability. The present application does not make any limitation.

[0826] In the present application, the event triggered reporting can also be referred to as one or more of event triggered report, event triggered CSI report, event triggered CSI measurement report, event triggered beam reporting, event triggered beam measurement report, event triggered measurement report, event triggered beam report, event triggered beam measurement result reporting, event triggered measurement result reporting, or event triggered interference measurement reporting, that is, the aforementioned statements can be replaced with each other. Event triggering can be replaced with terminal initiation or UE triggered (UE initiated).

[0827] The following will be specifically introduced in combination with FIG. 15 to FIG. 18. The description of the device embodiment corresponds to the description of the method embodiment, therefore, the content not described in detail can be referred to the foregoing method embodiment, and part of the content will not be described again for the sake of brevity.

[0828] The embodiments of the present application can divide the function modules of the communication device according to the above method examples. For example, each function module can be divided according to each function, or two or more functions can be integrated into one processing module. The integrated module can be realized in the form of hardware, software function module, or software and hardware combination. The division of the module in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, another division mode can be used. The following takes the example of dividing each function module according to each function.

[0829] FIG. 15 is an exemplary block diagram of the communication device 10 provided by the embodiments of the present application.

[0830] As shown in FIG. 15, the communication device 10 can include a chip system 110, a memory 120, a bus 130, a power management module 140, or a transceiver 150, and the like.

[0831] The chip system 110 can be an integrated circuit chip, and has the processing capability of signals. In the implementation process, each step of the above method can be completed by the integrated logic circuit of hardware or the instruction in the form of software in the chip system 110.

[0832] As an example but not limitation, the chip system 110 can include a circuit or chip responsible for signal processing (such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or system in package (SIP) chip containing a modem core).

[0833] Optionally, the chip system 110 can also be provided with a memory (such as a cache) for...

Claims

1. A communication method characterized by comprising: The method comprises: measuring reference signal resources corresponding to at least one event; when an event a in the at least one event occurs, sending a first channel state information (CSI) report corresponding to the event a, the first CSI report comprising: an eighth field, the eighth field being used to indicate whether at least one reference signal resource reported by the eighth field satisfies an event condition of the event a D times within a first time window, D being a positive integer.

2. A communication method characterized by comprising: The method comprises: receiving a first channel state information (CSI) report, the first CSI report being obtained by measuring reference signal resources corresponding to at least one event, the at least one event comprising an event a, the event a being used to trigger sending of the first CSI report, the first CSI report comprising: an eighth field, the eighth field being used to indicate whether at least one reference signal resource reported by the eighth field satisfies an event condition of the event a D times within a first time window, D being a positive integer.

3. The method according to claim 1 or 2, characterized in that, The eighth field is used to carry a second bit map, the second bit map comprising N bits, each of the N bits being used to indicate whether each of N reference signal resources reported by the second bit map satisfies the event condition D times within the first time window, N being a positive integer.

4. The method of claim 3, wherein, The first CSI further comprises N second fields, the N second fields being respectively used to carry indexes of the N reference signal resources, the indexes of the N reference signal resources being used to indicate the N reference signal resources, the N bits corresponding to the N reference signal resources one by one.

5. The method according to claim 3 or 4, characterized in that, An i-th bit of the N bits is used to indicate whether an i-th reference signal resource of the N reference signal resources satisfies the event condition D times within the first time window, i being a positive integer less than or equal to N.

6. The method according to any one of claims 3 to 5, characterized in that, The bit takes a value of '1', indicating that a reference signal resource corresponding to the bit satisfies the event condition D times within the first time window; the bit takes a value of '0', indicating that the reference signal resource corresponding to the bit does not satisfy the event condition D times within the first time window.

7. The method of any one of claims 1 to 7, wherein: the event a is a second event, and the reference signal resource satisfying the event condition of the event a D times comprises: a reference signal resource whose signal quality is higher than that of a serving beam by a second threshold D times within the first time window; and / or the event a is a third event, and the reference signal resource satisfying the event condition of the event a D times comprises: a reference signal resource whose signal quality is higher than that of a first beam by a third threshold D times within the first time window.

8. The method according to any one of claims 1 to 7, characterized in that, The D is preconfigured.

9. The method according to any one of claims 1 to 8, characterized in that, The first CSI report further comprises one or more of the following fields: N fourth fields, used to carry signal quality information of N reference signal resources reported by the N fourth fields, N being a positive integer; a fifth field, used to carry signal quality information of the first beam or signal quality information of the serving beam.

10. The method of claim 9, wherein: The event a is a second event, and the fifth field is used to carry the signal quality information of the serving beam in a case where reporting the serving beam or the signal quality information of the serving beam upon occurrence of the second event is configured. Or, The event a is a second event, and the fifth field is reserved in a case where reporting the serving beam or the signal quality information of the serving beam upon occurrence of the second event is not configured.

11. The method according to claim 9 or 10, characterized in that, In a case where the at least one event includes a second event and / or a third event, the first CSI report includes N second fields and the N fourth fields.

12. The method according to any one of claims 9 to 11, characterized in that, In a case where at least one of the following conditions is met, the first CSI report includes the fifth field: The at least one event includes a second event, and reporting the serving beam or the signal quality information of the serving beam upon occurrence of the second event is configured. The at least one event includes a third event, and reporting the first beam or the signal quality information of the first beam upon occurrence of the third event is configured.

13. The method of any one of claims 9-12, wherein, The event a is a first event, the fifth field is used to carry the signal quality information of the serving beam, and the signal quality information of the serving beam is the signal quality of the serving beam. Or, The event a is a second event, and the fifth field is used to carry the signal quality information of the serving beam in a case where reporting the serving beam or the signal quality information of the serving beam upon occurrence of the second event is configured, and the signal quality information of the serving beam is a difference between the signal quality of the serving beam and a first signal quality. Or, The event a is a third event, and the fifth field is used to carry the signal quality information of the first beam, and the signal quality information of the first beam is a difference between the signal quality of the first beam and a first signal quality. The first signal quality is the best signal quality among the signal qualities of the reference signal resources carried by the N second fields.

14. The method of claim 13, wherein, The event a is the first event, and the fifth field has a length of Y bits, Y being a positive integer. Or, The event a is the second event or the third event, and the fifth field has a length of X bits, X being a positive integer.

15. The method according to any one of claims 9 to 14, characterized in that, Y is greater than X.

16. The method according to any one of claims 1 to 15, characterized in that, The eighth field is after the N fourth fields.

17. The method of any one of claims 1 to 16, wherein, The at least one event is at least one of configured by a network device, activated by a network device, predefined, or preconfigured. The at least one event includes at least one of a first event, a second event, or a third event. The first event is that the signal quality of a serving beam is lower than a first threshold. The second event is that the signal quality of at least one reference signal resource is higher than the signal quality of the serving beam by a second threshold. The third event is that the signal quality of at least one reference signal resource is higher than the signal quality of a first beam by a third threshold.

18. The method of claim 17, wherein, The reference signal resource satisfying the event condition of the second event is one or more beams corresponding to one or more reference signals of the reference signal resource configured by the network device for monitoring the reference signal resource.

19. The method of claim 17 or 18, wherein, The reference signal resource satisfying the event condition of the third event is one or more beams corresponding to one or more reference signals of the reference signal resource configured by the network device for monitoring the reference signal resource.

20. A method of communication, comprising: Comprising: Measuring the beams corresponding to at least one event to obtain measurement results; When an event a in the at least one event occurs, sending a first channel state information (CSI) report corresponding to the event a, the first CSI report belonging to the measurement results, the first CSI report including one or more of the following fields: A first field for carrying first information used to determine the signal quality size relationship of part or all of the activated L beams, L being a positive integer, or the first field being reserved unused; N second fields for carrying resource indexes of a serving beam or resource indexes of a new beam, N being a positive integer, and / or part or all of the N second fields being reserved unused, wherein the new beam is different from the serving beam, or the new beam is different from the L beams, or the new beam is different from a first beam, the first beam being a beam ranked Mth in signal quality among the L beams, M being a positive integer less than or equal to L; A third field for carrying a beam index of the first beam or a resource index of the serving beam, or the third field being reserved unused; N fourth fields for carrying signal quality information of the serving beam or signal quality information of the new beam, and / or part or all of the N fourth fields being reserved unused; A fifth field for carrying signal quality information of the first beam or signal quality information of the serving beam, or being reserved unused; or A sixth field for carrying information indicating the event a.

21. A method of communication, comprising: Comprising: Receiving a first channel state information (CSI) report, the first CSI report belonging to measurement results obtained by measuring beams corresponding to at least one event, the at least one event including an event a, the event a being used to trigger sending of the first CSI report, the first CSI report including one or more of the following fields: A first field for carrying first information used to determine the signal quality size relationship of part or all of the activated L beams, L being a positive integer, or the first field being reserved unused; N second fields for carrying resource indexes of a serving beam or resource indexes of a new beam, N being a positive integer, and / or part or all of the N second fields being reserved unused, wherein the new beam is different from the serving beam, or the new beam is different from the L beams, or the new beam is different from a first beam, the first beam being a beam ranked Mth in signal quality among the L beams, M being a positive integer less than or equal to L; A third field for carrying a beam index of the first beam or a resource index of the serving beam, or the third field being reserved unused; N fourth fields, used for carrying signal quality information of a serving beam or signal quality information of a new beam, and / or, part or all of the N fourth fields are reserved unused; a fifth field, used for carrying signal quality information of a first beam or signal quality information of a serving beam, or reserved unused; or, a sixth field, used for carrying information indicating the event a.

22. The method of claim 20 or 21, wherein, the event a is a third event, and the first field is used for carrying the first information; or, the event a is a first event or a second event, and the first field is reserved unused.

23. The method of any one of claims 20 to 22, wherein, the event a is a first event, wherein one of the N second fields is used for carrying a resource index of the serving beam, or one of the N second fields is used for carrying a resource index of the serving beam, N-1 of the N second fields are reserved unused, or all of the N second fields are reserved unused; or, the event a is a second event or a third event, and the N second fields are respectively used for carrying resource indexes of N new beams, or Z of the N second fields are used for carrying resource indexes of Z new beams, N-Z of the N second fields are reserved unused, Z being a positive integer less than or equal to N.

24. The method of any one of claims 20 to 23, wherein, the event a is a third event, and the third field is used for carrying a beam index of the first beam; or, the event a is a first event or a second event, and the third field is used for carrying a resource index of the serving beam, or reserved unused.

25. The method of any one of claims 20 to 24, wherein, the event a is a first event, wherein one of the N fourth fields is used for carrying signal quality information of the serving beam, or one of the N fourth fields is used for carrying signal quality information of the serving beam, N-1 of the N fourth fields are reserved unused, or all of the N fourth fields are reserved unused; or, the event a is a second event or a third event, and the N fourth fields are respectively used for carrying signal quality information of N new beams, or Z of the N fourth fields are used for carrying signal quality information of Z new beams, N-Z of the N fourth fields are reserved unused, Z being a positive integer less than or equal to N, and the signal quality information of the Z new beams corresponds one-to-one to resource indexes of the Z new beams.

26. The method of any one of claims 20 to 25, wherein, the event a is a first event, and the fifth field is used for carrying signal quality information of the serving beam, or reserved unused; or, the event a is a second event or a third event, and the fifth field is used for carrying signal quality information of a first beam, or reserved unused. ​ The event a is a second event, and the fifth field is used to carry the signal quality information of the serving beam in a case where the reporting of the signal quality information of the serving beam or the serving beam is configured when the second event occurs. Or, The event a is a second event, and the fifth field is reserved in a case where the reporting of the signal quality information of the serving beam or the serving beam is not configured when the second event occurs. Or, The event a is a third event, and the fifth field is used to carry the signal quality information of the first beam or is reserved.

27. The method of any one of claims 20 to 26, wherein, the first CSI report includes the first field in a case where the at least one event includes a third event and / or the reporting of the first information is configured when the third event occurs.

28. The method of any one of claims 20-27, wherein, the first CSI report includes the N second fields and the N fourth fields in a case where the at least one event includes a second event and / or a third event.

29. The method of any one of claims 20-28, wherein, the first CSI report includes the third field in a case where at least one of the following is met: the at least one event includes a first event; the at least one event includes a first event and the reporting of the serving beam or a resource index of the serving beam is configured when the first event occurs; the at least one event includes a third event; or the at least one event includes a third event and the reporting of the first beam or a beam index of the first beam is configured when the third event occurs.

30. The method of any one of claims 20-29, wherein, the first CSI report includes the fifth field in a case where at least one of the following is met: the at least one event includes a first event; the at least one event includes a second event and the reporting of the signal quality information of the serving beam or the serving beam is configured when the second event occurs; the at least one event includes a third event; or the at least one event includes a third event and the reporting of the signal quality information of the first beam or the first beam is configured when the third event occurs.

31. The method of any one of claims 20-30, wherein, the first CSI report includes the sixth field in a case where the at least one event includes at least two events.

32. The method of any one of claims 20 to 31, wherein, a value of the N is a maximum value of a number of beams corresponding to part or all of the at least one event; and a number of beams corresponding to a first event is 0 or 1, a number of beams corresponding to a second event is a number of new beams that need to be reported when the second event occurs, and a number of beams corresponding to a third event is a number of new beams that need to be reported when the third event occurs.

33. The method of any one of claims 20 to 32, wherein, the event a is a first event, and the fifth field is used to carry signal quality information of the serving beam, the signal quality information of the serving beam being signal quality of the serving beam; or Or, The event a is a second event, and the service beam or the signal quality information of the service beam is reported when the second event occurs, the fifth field is used to carry the signal quality information of the service beam, and the signal quality information of the service beam is a difference between the signal quality of the service beam and the first signal quality; Or, The event a is a third event, and the fifth field is used to carry the signal quality information of the first beam, the signal quality information of the first beam is a difference between the signal quality of the first beam and the first signal quality, and the first signal quality is the best signal quality among the signal qualities of the N new beams carried by the N second fields. The first signal quality is the best signal quality among the signal qualities of the N new beams carried by the N second fields.

34. The method of claim 33, wherein, The event a is the first event, and the fifth field has a length of Y bits, Y being a positive integer; or The event a is the second event or the third event, and the fifth field has a length of X bits, X being a positive integer; wherein, Y is greater than X.

35. The method of any one of claims 20-34, wherein, The at least one event is at least one of configured by a network device, activated by a network device, predefined, or preconfigured.

36. The method of any one of claims 20-35, wherein, The at least one event includes at least one of a first event, a second event, or a third event; wherein, The first event is that the signal quality of the service beam is lower than a first threshold; The second event is that there is at least one new beam whose signal quality is higher than the signal quality of the service beam by a second threshold; The third event is that there is at least one new beam whose signal quality is higher than the signal quality of the first beam by a third threshold.

37. The method of any one of claims 20-36, wherein, The first CSI report further includes a seventh field and / or an eighth field; wherein, The seventh field is used to carry first indication information, the first indication information being used to indicate information of a new beam in the at least one new beam reported by the first CSI report that satisfies the event condition of the event a; or The eighth field is used to carry second indication information, the second indication information being used to indicate information of a new beam in the at least one new beam reported by the first CSI report that satisfies the event condition D times within a first time window, D being a positive integer.

38. The method of claim 37, wherein, The first indication information includes at least one of: indication information of a number of new beams in the at least one new beam indicated by the first CSI report that satisfy the event condition of the event a; a first bit map used to indicate whether a new beam in the at least one new beam indicated by the first CSI report satisfies the event condition of the event a; or Second information used to indicate a second beam, the signal quality of the second beam being less than the signal quality of a new beam in the at least one new beam indicated by the first CSI report other than the second beam and satisfying the event condition of the event a, and the second beam satisfying the event condition of the event a. The second indication information includes at least one of:

39. The method of claim 37 or 38, wherein, a number of new beams in the at least one new beam indicated by the first CSI report that satisfy the event condition D times within the first time window; ​ a second bitmap indicating whether a new beam of the at least one new beam indicated by the first CSI report satisfies the event condition of the event a; or, third information indicating a third beam, a signal quality of the third beam being less than a signal quality of a new beam of the at least one new beam indicated by the first CSI report other than the third beam and satisfying the event condition of the event a, the third beam satisfying the event condition of the event a D times within the first time window.

40. A communications device, characterized by comprising at least one means or at least one unit for performing the method of any one of claims 1 to 39.

41. A communications device, characterized by comprising: a processor configured to cause the method of any one of claims 1 to 39 to be performed by executing computer programs or instructions.

42. The communication apparatus of claim 41, wherein The communication device further comprises a memory configured to store the computer programs or the instructions.

43. A computer-readable storage medium, comprising: The computer readable storage medium has stored thereon computer programs or instructions that, when executed, cause the method of any one of claims 1 to 39 to be performed.

44. A computer program product, characterised in that, comprising computer programs or instructions that, when executed, implement the method of any one of claims 1 to 39.

Images