Beam management method, and wireless communication device

Abstract

Provided in the present application is an event-triggered beam management method, comprising: receiving an event indication sent by a first base station, wherein the event indication is used for notifying a user equipment of information indicating that a current beam or a specific activated beam is used as a benchmark; on the basis of a first beam measurement reference signal sent by the first base station and the information for the benchmark, and / or a second beam measurement reference signal sent by a second base station and the information for the benchmark, determining a trigger event, or reporting to the first base station beam information of the trigger event, such that a network side schedules the user equipment to perform an indicated beam management operation.

Description

Beam management methods and wireless communication devices Technical Field

[0001] This invention relates to the field of communication systems, and more specifically, to a beam management method and a wireless communication device. Background Technology

[0002] Millimeter wave technology is a key technology in fifth-generation wireless technology (5G). Its main advantage is its abundant spectrum resources, which can provide greater bandwidth and thus support higher data rates. However, millimeter waves also face some challenges. First, millimeter waves have a relatively short propagation distance, typically only a few hundred meters. Second, millimeter wave signals are susceptible to atmospheric absorption and rain attenuation, which can affect their performance in outdoor environments. Furthermore, millimeter wave signals are easily blocked by buildings and other objects.

[0003] To overcome these challenges, beam management technology has been proposed. Beam management is a technique that focuses wireless signals in a specific direction by controlling the phase and amplitude of an antenna array. This can significantly improve signal quality, enhance signal coverage, and reduce interference. In millimeter-wave communication, due to the narrow beamwidth, precise beam alignment is required, which necessitates sophisticated beam management strategies.

[0004] Beam management technology involves many processes. 5G standardizes processes such as beam configuration, beam measurement, beam reporting, and beam indication in beam management technology. In existing standards, these processes are controlled by the base station. For example, beam reporting involves the user equipment (UE) sending beam measurement information to the base station according to the reporting time and resources configured by the base station. If the reporting resources are configured very densely in time, it will lead to uplink resource collisions and waste, thus reducing system performance; if the reporting resources are configured very sparsely in time, it will prevent the base station from knowing the beam quality in a timely manner, thus reducing system performance. Technical Solution

[0005] One object of the present invention is to provide a beam management method and a wireless communication device to solve the above-mentioned technical problems.

[0006] A first aspect of the present invention provides a beam management method, the method being executed in a user equipment, comprising: receiving information about an event, the information about the event including at least one of the following: a current beam's quality value is less than a threshold value; at least one new beam's quality value is greater than the quality value of a current beam plus a threshold value; at least one new beam's quality value is greater than the quality value of an active beam plus a threshold value; at least one current beam's quality value is less than a threshold value; the total quality value of two current beams is less than a threshold value; the absolute value of the difference between the quality values ​​of two current beams is greater than a threshold value; and one of the current beams' quality values ​​is greater than the total quality value of the two current beams plus a threshold value. At least one new beam has a quality value greater than the quality value of at least one current beam plus a threshold; at least one new beam has a quality value greater than a first threshold and greater than the threshold value of the best current beam plus a second threshold; at least one new beam has a quality value greater than the total quality value of two current beams plus a threshold; the total quality value of at least two new beams is greater than the total quality value of two current beams plus a threshold; the total quality value of at least two new beams is greater than the quality value of one current beam plus a threshold; the total quality value of at least one new beam and a current beam is greater than the quality value of this current beam plus a threshold; at least one current beam has a quality value greater than a threshold; at least one new beam has a quality value greater than a threshold. The following conditions must be met: The quality value of at least two new beams is greater than the threshold; the quality value of at least one current beam in the current beam group is less than the threshold; the total quality value of the two current beams in the current beam group is less than the threshold; the absolute value of the difference between the quality values ​​of the two current beams in the current beam group is greater than the threshold; the quality value of at least one current beam in the current beam group is greater than the total quality value of the two current beams plus the threshold; the quality value of at least one new beam in at least one new beam group is greater than the quality value of at least one current beam in the current beam group plus the threshold; the quality value of at least one new beam in at least one new beam group is greater than the first threshold and greater than the best quality beam in the current beam group. The quality value of the current beam plus a threshold value; the quality value of at least one new beam in at least one new beam group is greater than the total quality value of the two current beams in the current beam group plus a threshold value; the total quality value of the two new beams in at least one new beam group is greater than the total quality value of the two current beams in the current beam group plus a threshold value; the total quality value of the two new beams in at least one new beam group is greater than the quality value of one current beam in the current beam group plus a threshold value; the quality value of at least one current beam in the current beam group is greater than a threshold value; the quality value of at least one new beam in at least one new beam group is greater than a threshold value; or the total quality value of the two new beams in at least one new beam group is greater than a threshold value.

[0007] A second aspect of the present invention provides a beam management method, the method being executed in a user equipment, comprising: receiving a beam indication, wherein the content of the indication includes at least one of the following: information related to the transmission receiving point, information related to the transmission configuration indication status, and information related to the cell, or the indication method is one of the following: a single-level indication method; or a two-level indication method.

[0008] A third aspect of the present invention provides a method for beam management, the method being performed in a user equipment, comprising: reporting beam information, wherein the beam information includes at least one of the following: a quality value of a current beam; a quality value of another beam in a current beam group; an indication that the quality value of the other beam is better or worse than the current beam; a quality value of an active beam; a quality value of another beam in an active beam group; an indication that the quality value of the other beam is better or worse than the active beam; an indication that the quality value of the other beam is better or worse than the best new beam; an indication of the order of the quality values ​​of the current beams; the absolute value of the difference in the quality values ​​of the current beams; the total quality value of the current beams; an index of a new beam; a quality value of a new beam; or the total quality value of a new beam.

[0009] A fourth aspect of the present invention provides a beam management method, the method being executed in a base station, comprising: transmitting information about an event, the information of the event including at least one of the following: a quality value of a current beam is less than a threshold; a quality value of at least one new beam is greater than the quality value of a current beam plus a threshold; a quality value of at least one new beam is greater than the quality value of an active beam plus a threshold; a quality value of at least one current beam is less than a threshold; the total quality value of two current beams is less than a threshold; the absolute value of the difference between the quality values ​​of two current beams is greater than a threshold; and the quality value of one of the current beams is greater than the total quality value of the two current beams plus a threshold. The following conditions must be met: At least one new beam has a quality value greater than the quality value of at least one current beam plus a threshold; at least one new beam has a quality value greater than a first threshold and greater than the threshold value of the best current beam plus a second threshold; at least one new beam has a quality value greater than the total quality value of two current beams plus a threshold; the total quality value of at least two new beams is greater than the total quality value of two current beams plus a threshold; the total quality value of at least two new beams is greater than the quality value of one current beam plus a threshold; the total quality value of at least one new beam and a current beam is greater than the quality value of this current beam plus a threshold; at least one current beam has a quality value greater than a threshold; at least one new beam has a quality value greater than... The following conditions must be met: The total quality value of at least two new beams is greater than the threshold value; the quality value of at least one current beam in the current beam group is less than the threshold value; the total quality value of the two current beams in the current beam group is less than the threshold value; the absolute value of the difference between the quality values ​​of the two current beams in the current beam group is greater than the threshold value; the quality value of at least one current beam in the current beam group is greater than the total quality value of the two current beams plus the threshold value; the quality value of at least one new beam in at least one new beam group is greater than the quality value of at least one current beam in the current beam group plus the threshold value; the quality value of at least one new beam in at least one new beam group is greater than the first threshold value and greater than the best quality beam in the current beam group. The quality value of the current beam plus a threshold value; the quality value of at least one new beam in at least one new beam group is greater than the total quality value of the two current beams in the current beam group plus a threshold value; the total quality value of the two new beams in at least one new beam group is greater than the total quality value of the two current beams in the current beam group plus a threshold value; the total quality value of the two new beams in at least one new beam group is greater than the quality value of one current beam in the current beam group plus a threshold value; the quality value of at least one current beam in the current beam group is greater than a threshold value; the quality value of at least one new beam in at least one new beam group is greater than a threshold value; or the total quality value of the two new beams in at least one new beam group is greater than a threshold value.

[0010] A fifth aspect of the present invention provides a beam management method, the method being executed in a base station, comprising: indicating a transmit beam, wherein the content of the indication includes at least one of the following: information related to a transmit / receive point, information related to a transmission configuration indication status, and cell-related information, and the method of the indication is at least one of the following: a single-level indication method or a two-level indication method.

[0011] A sixth aspect of the present invention provides a method for beam management, the method being performed in a base station, comprising: receiving beam information, wherein the beam information includes at least one of the following: a quality value of a current beam; a quality value of another beam in a current beam group; an indication that the quality value of the other beam is better or worse than the current beam; a quality value of an active beam; a quality value of another beam in an active beam group; an indication that the quality value of the other beam is better or worse than the active beam; an indication that the quality value of the other beam is better or worse than the best new beam; an indication of the order of the quality values ​​of the current beams; the absolute value of the difference in quality values ​​of the current beams; the total quality value of the current beams; an index of a new beam; a quality value of a new beam; or the total quality value of a new beam.

[0012] The method disclosed in this invention can be implemented in a chip. The chip may include a processor configured to call and run a computer program stored in memory to cause a device on which the chip is mounted to perform the method disclosed in this application.

[0013] The method disclosed in this invention can be programmed as computer-executable instructions stored in a non-transitory computer-readable medium. When loaded into a computer, the non-transitory computer-readable medium instructs the computer's processor to execute the method disclosed in this invention.

[0014] The non-transitory computer-readable medium may include at least one of the following readable media: hard disk, CD-ROM, optical storage device, magnetic storage device, read-only memory, programmable read-only memory, erasable programmable read-only memory, EPROM, electrically erasable programmable read-only memory, and flash memory.

[0015] The method disclosed in this invention can be programmed into a computer program product that causes a computer to execute the method disclosed in this application.

[0016] The method disclosed in this invention can be programmed into a computer program that causes a computer to execute the method disclosed in this application.

[0017] The method disclosed in this invention can be implemented by a wireless communication device. The wireless communication device includes a processor and a memory for storing computer programs, and the processor for calling and running the computer programs stored in the memory.

[0018] The embodiments of the present invention reduce beam reporting overhead or beam update latency through UE-initiated / event-driven (hereinafter referred to as "event-driven") beam management. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 illustrates a schematic diagram of the wireless communication system architecture of the present invention.

[0021] Figure 2 illustrates a block diagram of the wireless communication system of the present invention, including user equipment, base station, and core network equipment.

[0022] Figure 3 illustrates a schematic diagram of downlink beam scanning in an embodiment of the present invention.

[0023] Figure 4 illustrates the sequence of signaling interactions between the base station and the user equipment in reporting mode A according to an embodiment of the present invention.

[0024] Figure 5 illustrates the sequence diagram of signaling interaction between the base station and the user equipment in reporting mode B according to an embodiment of the present invention.

[0025] Figure 6 illustrates a schematic diagram of a TCI state-activated Media Access Control (MAC) control element (CE) under a non-uniform TCI framework in an embodiment of the present invention.

[0026] Figure 7 illustrates a schematic diagram of uplink and downlink combined or separate TCI state activation of MAC CE under the unified Transmission Configuration Indicator (TCI) framework in an embodiment of the present invention.

[0027] Figure 8 illustrates a schematic diagram of downlink TCI state activation MAC CE under a non-uniform TCI framework in an embodiment of the present invention.

[0028] Figure 9 illustrates a schematic diagram of uplink and downlink combined TCI state activation MAC CE under a unified TCI framework in an embodiment of the present invention.

[0029] Figure 10 illustrates a schematic diagram of uplink / downlink separated TCI state activation MAC CE under a unified TCI framework in an embodiment of the present invention.

[0030] Figure 11 illustrates the sequence diagram of operation and signaling interaction of event-driven beam management involving two Transmit-Receive Points (TRPs) and the UE in a Multiple Transmit-Receive Point (MTRP) scenario according to an embodiment of the present invention.

[0031] Figure 12 illustrates the sequence of information transmission for the TRP to send beam management-related events and the indication of the current or active beam to the UE in an MTRP scenario according to an embodiment of the present invention.

[0032] Figure 13 illustrates a schematic diagram of the dynamic indication corresponding to a first-type event or a second-type event in the Multiple Downlink Control Information (MDCI) MTRP mode of a single cell according to an embodiment of the present invention.

[0033] Figure 14 illustrates a schematic diagram of the dynamic indication of a type III event in a single-cell MDCI MTRP mode according to an embodiment of the present invention.

[0034] Figure 15 illustrates a schematic diagram of dynamic indications corresponding to Type I events and / or Type II events in Single Downlink Control Information (SDCI) MTRP mode according to an embodiment of the present invention.

[0035] Figure 16 illustrates a schematic diagram of the dynamic indication corresponding to a type III event in SDCI MTRP mode according to an embodiment of the present invention.

[0036] Figure 17 illustrates a flowchart of a beam management method performed in a user equipment according to a first embodiment of the present invention.

[0037] Figure 18 illustrates a flowchart of a beam management method performed in a user equipment according to a second embodiment of the present invention.

[0038] Figure 19 illustrates a flowchart of a beam management method performed in a user equipment according to a third embodiment of the present invention.

[0039] Figure 20 illustrates a flowchart of a beam management method performed in a base station according to a first embodiment of the present invention.

[0040] Figure 21 illustrates a flowchart of a beam management method performed in a base station according to a second embodiment of the present invention.

[0041] Figure 22 illustrates a flowchart of a beam management method performed in a base station according to a third embodiment of the present invention. Embodiments of the present invention

[0042] Those skilled in the art will recognize and understand that the details of the described examples are merely illustrative of some embodiments, and that the teachings set forth herein are applicable to various alternative settings.

[0043] In this invention, "A or B" can mean "A only", "B only" or "both A and B".

[0044] In other words, in this invention, "A or B" can be interpreted as "A and / or B". For example, in this invention, "A, B or C" can mean "A only", "B only", "C only" or "any combination of A, B, and C".

[0045] In this invention, the forward slash ( / ) or comma can mean "and / or". For example, "A / B" can mean "A and / or B". Therefore, "A / B" can mean "A only", "B only", or "both A and B". For example, "A, B, C" can mean "A, B, or C".

[0046] In this invention, "at least one of A and B" can mean "only A", "only B" or "both A and B". Additionally, in this invention, the expression "at least one of A or B" or "at least one of A and / or B" can be interpreted as "at least one of A and B".

[0047] Additionally, in this invention, "at least one of A, B, and C" can mean "only A," "only B," "only C," or "any combination of A, B, and C." Furthermore, "at least one of A, B, or C" or "at least one of A, B, and / or C" can mean "at least one of A, B, and C."

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0049] The technical solution of this invention can be applied to various wireless communication systems, such as Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, 5G communication systems, or future wireless communication systems. 5G communication systems or 5G networks can also be referred to as New Radio (NR) systems or NR networks.

[0050] As an example, the wireless communication system 100 to which this invention is applied is shown in FIG1. ​​The wireless communication system 100 may include a core network 130, a base station 200, and user equipment (UE) 10. The base station 200 may be a device that communicates with the UE 10. The base station 200 may provide communication coverage for a specific geographical area and may communicate with the UE 10 located within that coverage area.

[0051] The core network 130 can be an Internet Protocol (IP) mobile communication network operated by a mobile communication operator. For example, the core network 130 can be the core network used by a mobile communication operator to operate and manage the wireless communication system 100, or it can be the core network used by a virtual mobile communication operator such as a Mobile Virtual Network Operator (MVNO). The core network 130 can be connected to the base station 200 as a relay device for transmitting user data. The UE 10 transmits and receives user data via the core network 130. It should be noted that user data communication is not limited to IP communication; it can also be non-IP communication.

[0052] Optionally, base station 200 can be an evolved Node B (eNB) in an LTE system, or it can be a mobile switching center, relay station, access point, vehicle-mounted equipment, wearable device, hub, switch, bridge, router, network-side equipment in a 5G network, or a base station in a future communication system. The base station can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0053] Optionally, UE 10 can be stationary or mobile. UE 10 includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection; and / or another data connection / network; and / or via a wireless interface, such as for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as Digital Video Broadcasting-Handheld (DVB-H) networks, satellite networks, AM-FM broadcast transmitters; and / or other user equipment configured to receive / transmit communication signals; and / or Internet of Things (IoT) devices. User equipment configured to communicate via a wireless interface may be referred to as a "wireless communication terminal," "wireless terminal," or "mobile terminal." Examples of mobile terminals include, but are not limited to, satellite or cellular phones; personal communications system (PCS) terminals that can combine cellular radiotelephone with data processing, fax, and data communication capabilities; and may include radiotelephones, pagers, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, laptops, tablets, cameras, gaming devices, netbooks, smartbooks, ultrabooks, medical devices or apparatuses, wearable devices (smartwatches, smart clothing, smart glasses, smart wristbands), entertainment devices (music or video devices), in-vehicle components or sensors, smart meters / sensors, industrial manufacturing equipment, Global Positioning System (GPS) devices, or any other suitable device configured to communicate via wireless or wired media. Access terminals can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, personal digital assistants, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, user equipment in 5G networks, or user equipment in future evolved Public Land Mobile Networks (PLMNs), etc.

[0054] Optionally, two or more UEs (e.g., UE 10) may communicate directly using one or more sidelink channels (e.g., without using a base station as an intermediary for communication). For example, UE 10 may communicate using point-to-point (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or similar protocols), mesh networks, or similar networks, or combinations thereof. In this case, UE 10 may perform scheduling operations, resource selection operations, and other operations described elsewhere herein as being performed by a base station.

[0055] In this embodiment of the invention, base station 200 can perform uplink (UL) transmission and downlink (DL) transmission with UE 10.

[0056] Referring to Figure 2, the communication system includes User Equipment (UE) 10, Base Station 200, and Core Network Equipment 30. Connections between devices and device components are shown as lines and arrows in the figure. UE 10 may include a processor 11, a memory 12, and a transceiver 13. Base Station 200 may include a processor 201, a memory 202, and a transceiver 203. Core Network Equipment 300 may include a processor 31, a memory 32, and a transceiver 33. Each processor 11, 201, 31 can execute corresponding program instructions to implement the functions, processes, and / or methods provided in any embodiment of this application. The wireless interface protocol layer can be implemented in processors 11, 201, 301. Each memory 12, 202, 32 can store various programs and information to cooperate with the operation of the connected processor. Each transceiver 13, 203, 33 can be coupled to the processor for transmitting and / or receiving radio signals or wired signals. Base station 200 can be one of eNB, gNB, access point (AP), transmit-receive point (TRP) or other types of radio nodes, and can configure radio resources for UE 10.

[0057] Each processor 11, 201, 31 may include an application-specific integrated circuit (ASIC), other chipsets, logic circuits, and / or data processing devices. Each memory 12, 202, 32 may include read-only memory (ROM), random access memory (RAM), flash memory, memory cards, storage media, and / or other storage devices. Each transceiver 13, 203, 33 may include baseband circuitry and radio frequency (RF) circuitry to process radio frequency signals. When the embodiments are implemented in software, the techniques described herein can be implemented using functional modules, processes, functions, entities, etc., that perform the functions described herein. Modules may be stored in memory and executed by the processor. Memory may be implemented inside or outside the processor, and various devices known in the art may be coupled to the processor.

[0058] In this embodiment, the core network device 30 can be a node in the LTE core network or the 5G core network 130, including User Plane Function (UPF), Session Management Function (SMF), Mobility Management Function (MMF), Universal Data Management (UDM), Policy Control Function (PCF), Control Plane (CP) / User Plane (UP) Separation (CUPS), Authentication Server Function (AUSF), Network Slicing Selection Function (NSSF), and Network Exposure Function (NEF).

[0059] Beam management is a technique that focuses wireless signals in a specific direction by controlling the phase and amplitude of an antenna array. This can significantly improve signal quality, enhance signal coverage, and reduce interference. In millimeter-wave communication, due to the narrow beamwidth, precise beam alignment is required, necessitating complex beam management strategies. The beam management process mainly includes beam measurement, beam reporting, beam activation, and beam indication. The main delays occur in beam measurement and beam activation. The delay in beam measurement is related to the availability of resources and can be mitigated by configuring denser beam reporting resources, but this results in resource waste. The delay in beam activation may be a constant value, such as 3 milliseconds.

[0060] For beam measurement, referring to some embodiments of Figure 3, downlink beam scanning includes three procedures: P-1; P-2; and P-3. As shown in Figure 3(A), in the P-1 procedure, UE 10 measures the transmit beams of different base stations 200 to support the selection of base station transmit beam / UE receive beam. As shown in Figure 3(B), in the P-2 procedure, UE 10 measures the transmit beams of different base stations 200 to change the base station's transmit beam. In the P-2 procedure, when UE 10 uses beamforming, UE 10 measures the transmit beams of the same base station 200 to change the UE's receive beam. The reference signals used for downlink beam management are typically the Channel State Information Reference Signal (CSI-RS) and the Synchronization Signal Block (SSB). Specifically, in the P-1 and P-2 procedures, within one scan period, base station 200 transmits CSI-RS or SSB with different beams at different times. After measuring CSI-RS or SSB, UE 10 sends a beam report to base station 200, which includes beam quality information (e.g., CRI / SSBRI-RSRP / SINR). As shown in Figure 3(C), in the P-3 procedure, base station 200 transmits CSI-RS with the same beam at different times within a scan cycle. After measuring CSI-RS, UE 10 does not send a beam report to base station 200.

[0061] In multi-base station scenarios (such as Multiple Transmit-Receive Point (MTRP) scenarios), UE 10 can use a time-division scanning mode to scan different beams of the two base stations 200 in a time-division manner. Additionally, UE 10 also uses a simultaneous scanning mode to simultaneously scan different beam groups of the two base stations 200, where each beam group contains two beams, corresponding to one of the two base stations 200. The time-division scanning mode corresponds to non-group-based beam reporting, while the simultaneous scanning mode corresponds to group-based beam reporting.

[0062] In time-division scanning mode, the non-group-based beam reporting content is as follows: Here, "N" is configured by higher-level parameters and takes values ​​of {1, 2, 3, 4}. The number of bits occupied by the index of the new beam is related to the number of resources in the measurement resource set. Beam #1 has the best quality value and is reported in absolute mode, occupying 7 bits. The quality values ​​of other beams are reported in differential mode, with the differential reference value being the quality value of beam #1, occupying 4 bits.

[0063] In simultaneous scanning mode, the group-based beam reporting content is as follows: The parameter "N" is configured by higher layers and takes values ​​of {1, 2, 3, 4}. The resource set indicator indicates whether beam #1 in resource group #1 comes from the first or second resource set, occupying 1 bit. Other resource groups follow the same mapping order as the first resource group; that is, beam #1 in all resource groups comes from the indicated resource set, and beam #2 in all resource groups comes from another resource set. Beams #1 and #2 in the same resource group come from two different resource sets, which can be received simultaneously by UE 10. During configuration, these two resource sets are configured in the same CSI resource configuration (CSI-ResourceConfig). Beam #1 in resource group #1 has the best quality value and is reported in absolute mode, occupying 7 bits. Other beams are reported in differential mode, with the differential reference value being the quality value of beam #1 in resource group #1, occupying 4 bits.

[0064] Since UE 10 can know the beam quality more easily and in a more timely manner, in one aspect of the present invention, UE-initiated / event-driven (hereinafter referred to as "event-driven") beam management is proposed to reduce beam reporting overhead or beam update latency.

[0065] Beam management events include at least one of the following: Type 1 event (Event-1); Type 2 event (Event-2); or Type 3 event (Event-3). Type 1 event is triggered when the quality value of the current beam is poor and the difference exceeds a specific threshold. Type 2 event is triggered when at least one new beam has a quality value (e.g., L1-Reference Signal Received Power, L1-RSRP) that is better than the quality value of the current beam, and the difference between the two is greater than a threshold. Type 3 event is triggered when at least one new beam has a quality value (e.g., L1-RSRP) that is better than the Reference Signal (RS), and the difference between the two is greater than a threshold, wherein RS is derived from an Active Transmission Configuration Indicator (TCI) with a Q-th best quality value, and Q is configured by Radio Resource Control (RRC) based on UE capability signaling.

[0066] The introduction of Type 1 events can prevent UE 10 from entering the beam failure recovery procedure and quickly complete beam refinement. This is because entering the beam failure recovery procedure requires beam measurement and data transmission / reception is impossible.

[0067] The introduction of Type II events can reduce beam measurement latency or reporting overhead. When a Type II event is detected, it means there is a better beam than the current beam, and the good beam information is reported. When no Type II event occurs, it means there is no better beam than the current beam, and no reporting is required. If the TCI state corresponding to the good beam is in the active TCI list, the base station 200 can immediately indicate this TCI state to the UE 10. If the TCI state corresponding to the good beam is not in the active TCI list, the base station 200 needs to activate this TCI state first, and then indicate this TCI state to the UE 10.

[0068] However, the activation of the TCI state is delayed, so the TCI state corresponding to a good beam is likely active. The introduction of Type 3 events can reduce the beam activation delay. When a Type 3 event occurs, it means there is a better beam than the Mth active beam, and the good beam velocity information is reported. When no Type 3 event occurs, it means there is no better beam than the Mth active beam, and no reporting is needed. After receiving a report of a Type 3 event, base station 200 can immediately update the active TCI state.

[0069] When configuring the reference signal corresponding to a beam, the base station 200 does not display a distinction between the reference signals corresponding to the new beam and the current beam; instead, it configures them all in a single reference signal resource set. The UE 10 finds the reference signal corresponding to the current beam in the resource set through the reference signal associated with the TCI state corresponding to the current beam, while the other reference signals in the resource set are the reference signals corresponding to the new beam.

[0070] When the type 2 event is triggered, the beam reports the following: The number of bits used for the index of the new beam is related to the number of resources in the measurement resource set. Beam #1 has the best quality value and is reported in absolute mode, occupying 7 bits. The quality values ​​of the current beam and other beams are reported differentially, with the reference value for the difference being the quality value of beam #1, occupying 4 bits. Whether the quality value of the current beam is reported is configured by higher-layer parameters. In addition to the above, the reporting content of Type II events also includes an indication of whether each new beam is better than the current beam, which occupies 1 bit.

[0071] In some embodiments, the reported content of Type I events and Type III events is consistent with the reported content of Type II events.

[0072] The event-triggered beam management reporting mode includes at least one of the following: Mode A or Mode B. The selection of the two modes is configured by the base station 200 according to the capabilities of the UE 10. Please refer to Figure 4, which illustrates the signaling interaction between the base station and the user equipment in reporting mode A according to an embodiment of the present invention. Reporting mode A has three operations: UE 10 sends a first uplink signal to the base station 200 (operation 410); base station 200 sends a downlink signal to UE 10 (operation 420); and UE 10 sends a second uplink signal to the base station 200 (operation 430). It is worth noting that the above operations can be performed sequentially or non-sequentially, and furthermore, only some operations can be performed instead of all operations being performed each time.

[0073] Please refer to Figure 5, which illustrates the signaling interaction between the base station and the user equipment (UE) in reporting mode B according to an embodiment of the present invention. Reporting mode B has two steps: UE 10 sends a first uplink signal to base station 200 (operation 510); and UE 10 sends a second uplink signal to base station 200 (operation 520). It is worth noting that the above operations can be performed sequentially or not sequentially; furthermore, only some operations may be performed instead of all operations each time.

[0074] The first uplink signal in reporting mode A and the first uplink signal in reporting mode B are short-format Physical Uplink Control Channels (PUCCHs), carrying 1 bit of information. The second uplink signal in reporting mode A and the second uplink signal in reporting mode B carry at least beam index and quality information. The downlink signal in reporting mode A is a Physical Downlink Control Channel (PDCCH), carrying downlink control information (DCI) that schedules the second uplink signal. The second uplink signal in reporting mode A is a Physical Uplink Shared Channel (PUSCH) scheduled by the DCI.

[0075] For example, if the L1-RSRP value of a new beam is greater than the L1-RSRP plus a threshold value of the current beam, a Type II event instance corresponding to this new beam is generated. The triggering condition for the Type II event is: within the configured measurement time window, if the number of Type II event instances corresponding to at least one identical new beam is greater than the configured number M, then the Type II event is triggered. Preferably, M is configured to 1, that is, once the L1-RSRP of a new beam is greater than the L1-RSRP plus a threshold value of the current beam, the Type II event is triggered.

[0076] Regarding the measurement time window for Type II events, one of the following embodiments can be selected. In the first embodiment, the measurement time window is from T_PUCCH-T_proc-T_window to T_PUCCH-T_proc, where T_PUCCH is the transmission time of the first PUCCH, and T_proc and T_window are configured by RRC. In the second embodiment, the measurement time window is from T_instance-T_window to T_instance, where T_instance is the evaluation time of the event instance, and T_window is configured by RRC. In the third embodiment, the length, slot offset, and period of the measurement time window are configured by the network side in the CSI reporting configuration. For the embodiments described above, if a Type II event instance corresponding to a new beam occurs at time t, UE 10 starts or restarts the timer for this new beam, where the timer termination event is equal to the T_window configured by RRC.

[0077] MTRP scenarios can be categorized into SDCI-based and MDCI-based types. SDCI-based MTRP scenarios refer to scenarios where a single TRP's DCI transmission can simultaneously schedule data from one or two TRPs. MDCI-based MTRP scenarios involve two TRPs each sending their own DCI transmissions to schedule data from their respective TRPs. SDCI-based MTRP scenarios can be further divided into STRP mode and MTRP mode.

[0078] STRP mode refers to a DCI sent by one TRP simultaneously scheduling data from another TRP. It's important to note that this scheduling is very similar to the STRP scenario, but the cell still contains two TRPs in this case. The maximum number of layers supported by a single UE in STRP mode is 8. In STRP mode, the indicated TCI state group contains only one TCI state, or the indicated TCI state group contains two TCI states, but only one TCI state is indicated as available.

[0079] MTRP mode refers to a DCI sent by one TRP simultaneously scheduling data from two TRPs. MTRP mode is further subdivided into Spatial Division Multiplexing (SDM), Frequency Division Multiplexing-A (FDM-A), Frequency Division Multiplexing-B (FDM-B), Time Division Multiplexing-A (TDM-A), Time Division Multiplexing-B (TDM-B), and Single Frequency Networks (SFN). Except for SDM, all other modes can be collectively referred to as repetition modes. The maximum number of layers supported by a single UE in SDM mode is 4. The maximum number of layers supported by a single UE in FDM-A, FDM-B, TDM-A, TDM-B, and SFN modes is 2. In MTRP mode, the indicated TCI state group contains two TCI states, or the indicated TCI state group contains two TCI states and both TCI states are indicated as available.

[0080] In the MTRP scenario, the indicated TCI state group can contain one or two TCI states. Similarly, for active TCI state groups, different active TCI state groups in the MTRP scenario can also contain one or two TCI states. Through dynamic activation and indication, the STRP mode and MTRP mode can be dynamically switched.

[0081] The activation of TCI states in MTRP scenarios includes: activation of the MDCI type TCI state of MTRP; and / or activation of the SDCI type TCI state of MTRP. For the activation of the MDCI type TCI state of MTRP, please refer to Figure 6, which illustrates the activation of the Media Access Control (MAC) element (CE) under a non-uniform TCI framework in an embodiment of the present invention. From T0 to T... (N-2)*8 A maximum of eight TCI states can be active at any given time, forming a list of active TCI states. Optionally, please refer to Figure 7, which illustrates the combined or separate uplink and downlink TCI state activation MAC CE under a unified TCI framework in an embodiment of the present invention. N TCI states corresponding to TCI state ID 1 to TCI state ID N form a list of active TCI states, containing a maximum of eight downlink TCI states and eight uplink TCI states; therefore, the maximum value of N is 16.

[0082] Regarding the activation of the TCI state of the SDCI type in MTRP, please refer to Figure 8. Figure 8 illustrates the downlink TCI state activation MAC CE under a non-uniform TCI framework in this embodiment of the invention. TCI State ID i,1 and TCI status ID i,2 Two TCI states corresponding to (i = 1…N) form an active TCI state group, and N TCI state groups form a list of active TCI state groups, where N has a maximum value of 8. Optionally, please refer to Figure 9, which illustrates the uplink / downlink joint TCI state activation MAC CE under the unified TCI framework in an embodiment of the present invention. i1 and F i2 Two TCI states corresponding to the TCI state IDs (i = 1…N) form an active TCI state group. This TCI state group contains at most two downlink TCI states. N TCI state groups form a list of active TCI state groups, where N has a maximum value of 8. Optionally, please refer to Figure 10, which illustrates the uplink / downlink separated TCI state activation MAC CE under the unified TCI framework in this embodiment of the invention. i1 F i2 S i1 S i2 The four TCI states corresponding to the TCI state IDs (i = 1…N) form an active TCI state group. This TCI state group contains at most two downlink TCI states and at most two uplink TCI states. N TCI state groups form a list of active TCI state groups, where N has a maximum value of 8.

[0083] In a non-uniform TCI framework, the TCI (Transmission Configuration Indicator) area in the DCI is used to indicate an active TCI state group in the list of active TCI state groups. This active TCI state group is the indicated TCI state group, and one or two TCI states in it can be used for Physical Downlink Shared Channel (PDSCH) reception. The TCI area occupies 3 bits.

[0084] Within the unified TCI framework, the TCI region in the DCI indicates an active TCI state group from the list of active TCI state groups. This active TCI state group is the indicated TCI state group. The TCI selection region in the DCI indicates whether one or both TCI states in the TCI state group indicated by the TCI region are available. The TCI region occupies 3 bits, and the TCI selection region occupies 2 bits. The meaning of the TCI region is explained below:

[0085] Event-triggered beam management can operate in Single Transmit-Receive Point (STRP) scenarios. In an STRP scenario, there is only one TRP, and only one set of TCI states are contained within the indicated TCI state group or each active TCI state group. The current beam is the beam corresponding to the TCI state in the indicated TCI state group. Therefore, there is only one current beam. The active beam is the TCI state in the active TCI state group containing the active TCI state. Therefore, there is only one active beam. Furthermore, the current beam, active beam, and new beam all belong to the same TRP.

[0086] However, when the event-triggered beam management mechanism operates in an MTRP scenario, some technical issues arise that need to be addressed. In an MTRP scenario, there are two TRPs, and the number of TCI states contained in the indicated TCI state group or each active TCI state group may be one or two. The current beam is the beam corresponding to the TCI state of the indicated TCI state group. Therefore, the current beam may be one or two. If the first and second type of events from the STRP scenario are applied to the MTRP scenario, and configuration is performed for each current beam, and there are two current beams, the UE does not know which beam is the current beam, making it difficult to find the current beam from measurement resources. For active beams, the following situations may occur:

[0087] The first scenario: One of the active beams is an active TCI state of one TRP, and the other beam is another TCI state within the same active TCI state group as the active TCI state of another TRP. In this case, the other TCI state belongs to a different TRP, and it may not necessarily exist.

[0088] The second scenario: One of the active beams is the active TCI state of one TRP and the active TCI state of another TRP. In this case, the two TCI states are not necessarily in the same active TCI state group, and they do not necessarily exist simultaneously.

[0089] The third scenario: The active beam is the active TCI state among all the active TCI states of the two TRPs.

[0090] Therefore, there may be one or two active beams, and the active beams may differ depending on the situation. If the Type 3 event in the STRP scenario is applied to the MTRP scenario, and each active beam is configured, and there are two active beams or different configurations are used, UE 10 does not know which active beam is and has difficulty finding the active beam from the measurement resources.

[0091] From the definition of Type I events, although they are only related to the current beam, the new beam can still be considered during configuration and reporting. This makes the reported content size of Type I events similar to that of Type II / Type III events, avoiding excessive padding. Furthermore, this free padding effectively provides the base station with more information, such as the quality values ​​of the new beam. The base station can consider including beams with quality values ​​close to the current beam in its optimization list. Additionally, it can share the same measurement resources as Type II events. If the reporting method for Type II events is directly applied to Type I events, difficulties will arise in reporting the quality value of the current beam, as its quality is better than the best new beam. Therefore, it is necessary to study how to report the quality value of the current beam for Type I events.

[0092] In group-based beam reporting, the two beams in each beam group are received simultaneously, and the indices and quality values ​​of both beams are reported simultaneously. If Type 1 and Type 2 events from the STRP scenario are applied to the MTRP scenario, and configuration is performed for each current beam, each new beam group will contain two new beams during configuration. The beam group containing the current beam will contain one current beam and another beam (also a new beam). During reporting, it needs to be determined whether the quality value of the other beam should be reported. If reported, a quantization method needs to be designed. Similarly, if Type 3 events from the STRP scenario are applied to the MTRP scenario, and configuration is performed for each active beam, each new beam group will contain two new beams during configuration. The beam group containing the active beam will contain one active beam and another beam (also a new beam). During reporting, it needs to be determined whether the quality value of the other beam should be reported. If reported, a quantization method needs to be designed.

[0093] Furthermore, since the event-triggered notification information is designed similarly to SR (Signal Response) systems, the base station does not know how many events have triggered or which events have triggered after receiving the notification information. Therefore, the number of beams reported in the second uplink signal needs to be fixed. In the STRP scenario, the second uplink signal is required to report only one beam. In the MTRP scenario, if this rule continues, it may result in only the same current beam or the same active beam being optimized for an extended period, while another current beam or another active beam cannot be optimized, directly leading to beam failure. Therefore, in the MTRP scenario, the number of beams reported in the second uplink signal needs to be determined.

[0094] MTRP scenarios are divided into two types: those based on Single Downlink Control Information (SDCI) and those based on Multiple Downlink Control Information (MDCI). An SDCI-based MTRP scenario means that a DCI sent by one TRP can simultaneously schedule data from one or two TRPs. An MDCI-based MTRP scenario means that DCIs sent by two TRPs can separately schedule data from both TRPs.

[0095] Applying events from the STRP scenario to the MTRP scenario creates difficulties for subsequent decision-making on the network side. For the first type of event, beam information contains at most the quality value of one current beam. In MTRP mode, the network side does not know the quality value of the other current beam, making it impossible to compare this current beam with the other, and thus difficult to decide on the next course of action. For example, if one current beam has poor quality, the quality of the other current beam may be poor, good, or exceptionally good. If the other current beam has poor quality, the network side should optimize both current beams simultaneously and continue using MTRP mode; if the other current beam has good quality, the network side should optimize the poor current beam and continue using MTRP mode; if the other current beam has exceptionally good quality, the network side should directly switch from MTRP mode to STRP mode, using only the exceptionally good current beam. For the second type of event, beam information contains the indices and quality values ​​of several new beams and the quality value of one current beam. Similarly, in MTRP mode, the network side does not know the quality value of the other current beam, making it impossible to compare the new beams with the other, and thus difficult to decide on the next course of action. For example, if a new beam is of better quality than one of the current beams, then the quality of the new beam might be significantly worse, slightly worse, slightly better, or significantly better than another current beam. If the new beam is significantly worse than another current beam, the network should directly use only the other current beam, switching from MTRP mode to STRP mode. If the new beam is slightly worse or slightly better than another current beam, the network can use the new beam to replace the current beam and continue using MTRP mode. If the new beam is significantly better than another current beam, the network can directly use only the new beam, switching from MTRP mode to STRP mode. Similar issues exist for Type 3 events to those related to Type 2 events.

[0096] In MTRP scenarios, under MTRP mode, for SDM (Single DM) transmission, UE 10 receives different signals from different TRPs, and these signals interfere with each other. For repetitive transmission, UE 10 receives repeated signals from different TRPs, and these signals amplify each other. Therefore, considering only the quality of a single beam within the same TRP and between different TRPs is insufficient; the overall quality of the beam from one TRP versus another must also be considered. In STRP scenarios, event definitions and reporting can only consider the quality of a single beam within the same TRP and between different TRPs, and cannot consider the overall quality of the beam from one TRP versus another.

[0097] In one aspect of this invention, embodiments of this invention propose beam management related events, indications of the current beam or active beam, and event-driven beam information content that differ from those in the STRP scenario for the MTRP scenario.

[0098] In one aspect of this invention, embodiments of the invention optimize for each current or active beam by introducing indications for the current and active beams, enabling the UE 10 to correctly locate the reference beam of the event in the measurement resources based on these indications. Furthermore, embodiments of the invention also optimize the number of beams that can be included in the beam information, allowing the number of beams to change dynamically, thereby reducing latency and overhead.

[0099] In one aspect of this invention, embodiments of the invention introduce beam management events more suitable for MTRP scenarios, along with corresponding reporting, for joint optimization of multiple current or active beams. These events enable UE 10 to provide base stations 200-1 and 200-2 with more accurate beam information. Base stations 200-1 and 200-2 can then make better decisions based on the reports from UE 10, such as more accurately determining which one or more beams to optimize, and more quickly determining whether to switch to STRP mode or MTRP mode.

[0100] To address the technical challenges of event-triggered beam management mechanisms operating in MTRP scenarios, please refer to Figure 11. Figure 11 illustrates the operation and signaling interaction of event-driven beam management involving two TRPs and the UE in an MTRP scenario according to an embodiment of the present invention. It should be noted that TRP 200-1 and TRP 200-2 in Figure 11 can also be generally referred to as two base stations. Detailed explanation follows:

[0101] Operation 1110: UE 10 reports whether it supports event-driven beam management and / or whether it supports group-based beam reporting capabilities.

[0102] Operation 1120: TRP 200-1 sends information about beam management-related events to UE 10.

[0103] Information regarding beam management-related events includes at least beam management events configured separately for each current beam or each active beam (i.e., a reference signal corresponding to only one current beam or one active beam is included in a reported configuration-associated measurement resource). Existing events include: Type I events as described above; Type II events; and Type III events.

[0104] Optionally, the current beam or the active beam can be configured together (i.e., the reference signals corresponding to the two current beams can be included in a measurement resource associated with a reported configuration). Custom events include: at least one current beam's quality value is less than a threshold; the total quality value of two current beams is less than a threshold; the absolute value of the difference between the quality values ​​of two current beams is greater than a threshold; the quality value of one current beam is greater than the total quality value of the two current beams plus a threshold; the quality value of at least one new beam is greater than the quality value of at least one current beam plus a threshold; the quality value of at least one new beam is greater than a first threshold and greater than the threshold value of the best current beam plus a second threshold; the quality value of at least one new beam is greater than the total quality value of the two current beams plus a threshold; the total quality value of at least two new beams is greater than the total quality value of the two current beams plus a threshold; the total quality value of at least two new beams is greater than the quality value of one current beam plus a threshold; the total quality value of at least one new beam and the current beam is greater than the quality value of this current beam plus a threshold; the quality value of at least one current beam is greater than a threshold; the quality value of at least one new beam is greater than a threshold; or the total quality value of at least two new beams is greater than a threshold.

[0105] Optionally, group-based beam reporting can be configured jointly for the current beam or the active beam (i.e., the measurement resources associated with a reporting configuration include reference signals corresponding to two current beams). Custom events for group-based beam reporting include: the quality value of at least one current beam in the current beam group is less than a threshold; the total quality value of the two current beams in the current beam group is less than a threshold; the absolute value of the difference between the quality values ​​of the two current beams in the current beam group is greater than a threshold; the quality value of at least one current beam in the current beam group is greater than the total quality value of the two current beams plus a threshold; the quality value of at least one new beam in at least one new beam group is greater than the quality value of at least one current beam in the current beam group plus a threshold; the quality value of at least one new beam in at least one new beam group is greater than a first threshold and greater than the best current beam in the current beam group. The quality value of the beam plus a threshold value; the quality value of at least one new beam in at least one new beam group is greater than the total quality value of the two current beams in the current beam group plus a threshold value; the total quality value of the two new beams in at least one new beam group is greater than the total quality value of the two current beams in the current beam group plus a threshold value; the total quality value of the two new beams in at least one new beam group is greater than the quality value of one current beam in the current beam group plus a threshold value; the quality value of at least one current beam in the current beam group is greater than a threshold value; the quality value of at least one new beam in at least one new beam group is greater than a threshold value; or the total quality value of the two new beams in at least one new beam group is greater than a threshold value.

[0106] All of the above events can also be predefined between the base station and the UE. Only one or more of the above events can be selected for execution.

[0107] Operation 1130: TRP 200-1 sends an indication of the current beam or active beam to UE 10, which informs UE 100 of the information of the current beam or active beam so that the UE can find the reference signal corresponding to the current beam or active beam in the reference signal resource set.

[0108] The indicated content includes at least one of the following: information related to the TRP to which the beam belongs, such as the control resource set index parameter CORESETPOOLINDEX or the TRP identifier (ID); information related to the TCI status to which the beam belongs, such as the sequence number of the TCI status in the indicated TCI status group, the sequence number of the TCI status group in the list of active TCI status groups, the sequence number of the TCI status in the active TCI status group, the sequence number of the TCI status in the list of active TCI statuses, and the TCI status identifier; or information related to the cell to which the beam belongs, such as the cell's sequence number in the cell list, the cell identifier, and the Bandwidth Part (BWP) identifier.

[0109] The indication methods are as follows: a single-level indication method; or a two-level indication method. A single-level indication method can be a semi-static configuration (high-level parameters) configured in the CSI reporting configuration; or a dynamic indication (MAC CE) associated with the CSI reporting configuration. A two-level indication method can be two semi-static configurations, configured in the CSI reporting configuration; or a semi-static configuration plus a dynamic indication, configured in the CSI reporting configuration and associated with it.

[0110] Operation 1140-1: TRP 200-1 sends beam measurement reference signal.

[0111] Operation 1140-2: TRP 200-2 transmits beam measurement reference signals. It should be noted that if it is group-based beam reporting, the measurement reference signals of TRP 200-2 and TRP 200-1 in the same beam group are transmitted simultaneously (or received simultaneously by UE 10).

[0112] Operation 1150: UE 10 determines whether an event has been triggered. Specifically, UE 10 determines whether an event has been triggered in the cell by measuring the beam measurement reference signals transmitted by TRP 200-1 and TRP 200-2.

[0113] Operation 1160: UE 10 sends an event trigger indication to TRP 200-1.

[0114] Operation 1170: TRP 200-1 sends uplink scheduling information to UE 10.

[0115] Operation 1180: UE 10 sends event-driven beam information to TRP 200-1.

[0116] It is worth noting that the above operations can be performed sequentially or not sequentially. In addition, only some operations can be performed instead of all operations each time.

[0117] The method for determining the number of beams reported in the beam information can be at least one of the following: predefined (e.g., 2); semi-static configuration; dynamic indication; dynamic change based on configuration (e.g., whether there is MTRP-related configuration); or dynamic change based on TCI status. Regarding semi-static configuration, it can be Mode-A, configured in the Dynamic Granted Physical Uplink Shared Channel (DG-PUSCH) configuration; or Mode-B, configured in the Configured Granted Physical Uplink Shared Channel (CG-PUSCH) configuration. Regarding dynamic indication, it can be Mode-A, indicated by DCI; or Mode-B, indicated by MAC CE. Details regarding dynamic changes based on TCI status can be based on the number of TCI states contained in the indicated TCI state group; the number of available TCI states contained in the indicated TCI state group; or the number of TCI states contained in the active TCI state group.

[0118] Each beam report in the beam information includes at least one of the following: group-based beam reporting, configured individually for the current beam; or joint configuration for the current beam. In the first case, the reported content includes at least one of the following: the quality value of the current beam; the quality value of another beam in the resource group of the current beam; an indication that the quality value of the other beam is better or worse than the current beam; the quality value of the active beam; the quality value of another beam in the resource group of the active beam; an indication that the quality value of the other beam is better or worse than the active beam; or an indication that the quality value of the other beam is better or worse than the quality value of the best new beam. In the second case, the reported content includes at least one of the following: the quality value of the current beam; an indication of the order of the quality values ​​of the current beams; the difference in quality values ​​between two current beams; an indication of a better or worse current beam; the total quality value of the two current beams; the index of the new beam; the quality value of the new beam; or the total quality value of a new beam and a current beam. In the second scenario, the method for determining the number of reports can be: predefined; semi-static configuration; or dynamically changed based on the number of indicated TCI states. Regarding the order of arrangement in the second scenario, it can be: predefined; semi-static configuration; or dynamically indicated.

[0119] The following paragraphs provide more detailed embodiments to illustrate the technical details performed by TRP 200-1 in operation 1130 so that UE 10 can recognize different events. Please refer to Figure 12, which illustrates the information transmission by TRP to the UE in an MTRP scenario according to an embodiment of the present invention, indicating the current beam or active beam. Detailed explanation follows:

[0120] Operation 1210: TRP 200-1 sends the TCI status configuration to UE 10 to configure the TCI status list. The TCI status list contains several TCI states.

[0121] Operation 1220: TRP 200-1 sends TCI state activation to UE 10 to activate several TCI states or TCI state groups. For MDCI MTRP mode, different lists of active TCI states correspond to different CORESETPOOLINDEX, and one list of active TCI states contains several active TCI states. For SDCI MTRP mode, a list of active TCI state groups contains several active TCI state groups, and one active TCI state group contains several active TCI states. Activation is performed using MAC CE.

[0122] Operation 1230: TRP 200-1 sends an indication of the TCI status to UE 10, indicating one TCI status or a TCI status group. For MDCI MTRP mode, different indicated TCI statuses correspond to different CORESETPOOLINDEXs. For SDCI MTRP mode, the indicated TCI status group contains several TCI statuses. MAC CE or DCI indication is used.

[0123] Operation 1240: TRP 200-1 sends an indication of the current beam or active beam to UE 10 to inform UE 10 of the information of the current beam or active beam so that UE can find the reference signal corresponding to the current beam or active beam in the reference signal resource set.

[0124] In practice, only some of the steps may be performed, or they may be performed in different orders to achieve different functions. This invention is not limited by these limitations.

[0125] Please refer to Figure 17, which illustrates a flowchart of a beam management method performed in a user equipment according to a first embodiment of the present invention. The user equipment (e.g., UE 10) receives event information, the event information including at least one of the following: the quality value of a current beam is less than a threshold; the quality value of at least one new beam is greater than the quality value of a current beam plus a threshold; the quality value of at least one new beam is greater than the quality value of an active beam plus a threshold; the quality value of at least one current beam is less than a threshold; the total quality value of two current beams is less than a threshold; the absolute value of the difference between the quality values ​​of two current beams is greater than a threshold; the quality value of one of the current beams is greater than the total quality value of the two current beams plus a threshold; the quality value of at least one new beam is greater than the quality value of at least one current beam plus a threshold. The following thresholds apply: At least one new beam has a quality value greater than a first threshold and greater than the best current beam's threshold plus a second threshold; at least one new beam has a quality value greater than the total quality value of two current beams plus a threshold; the total quality value of at least two new beams is greater than the total quality value of two current beams plus a threshold; the total quality value of at least two new beams is greater than the quality value of one current beam plus a threshold; the total quality value of at least one new beam and the current beam is greater than the quality value of this current beam plus a threshold; at least one current beam has a quality value greater than a threshold; at least one new beam has a quality value greater than a threshold; the total quality value of at least two new beams is greater than a threshold. Limits: The quality value of at least one current beam in the current beam group is less than a threshold; the total quality value of the two current beams in the current beam group is less than a threshold; the absolute value of the difference between the quality values ​​of the two current beams in the current beam group is greater than a threshold; the quality value of at least one current beam in the current beam group is greater than the total quality value of the two current beams plus a threshold; the quality value of at least one new beam in at least one new beam group is greater than the quality value of at least one current beam in the current beam group plus a threshold; the quality value of at least one new beam in at least one new beam group is greater than a first threshold and greater than the quality value of the best current beam in the current beam group plus a threshold; up to The quality value of at least one new beam in a new beam group is greater than the total quality value of the two current beams in the current beam group plus a threshold value; the total quality value of the two new beams in at least one new beam group is greater than the total quality value of the two current beams in the current beam group plus a threshold value; the total quality value of the two new beams in at least one new beam group is greater than the quality value of one current beam in the current beam group plus a threshold value; the quality value of at least one current beam in the current beam group is greater than a threshold value; the quality value of at least one new beam in at least one new beam group is greater than a threshold value; or the total quality value of the two new beams in at least one new beam group is greater than a threshold value (step 1710).

[0126] Please refer to Figure 18, which illustrates a flowchart of a beam management method performed in a user equipment according to a second embodiment of the present invention. The user equipment (e.g., UE 10) receives a beam indication, wherein the indication includes at least one of the following: information related to the transmission receiving point, information related to the transmission configuration indication status, and information related to the cell, or the indication method is one of the following: a single-level indication method or a two-level indication method (step 1810).

[0127] Please refer to Figure 19, which illustrates a flowchart of a beam management method performed in a user equipment according to a third embodiment of the present invention. The user equipment (e.g., UE 10) reports beam information, wherein the beam information includes at least one of the following: the quality value of the current beam; the quality value of another beam in the current beam group; an indication that the quality value of the other beam is better or worse than the current beam; the quality value of the active beam; the quality value of another beam in the active beam group; an indication that the quality value of the other beam is better or worse than the active beam; an indication that the quality value of the other beam is better or worse than the best new beam; an indication of the order of the quality values ​​of the current beams; the absolute value of the difference in the quality values ​​of the current beams; the total quality value of the current beams; the index of the new beam; the quality value of the new beam; or the total quality value of the new beam (step 1910).

[0128] Please refer to Figure 20, which illustrates a flowchart of a beam management method performed in a base station according to a first embodiment of the present invention. The base station (e.g., TRP 200-1) transmits event information, the event information including at least one of the following: the quality value of a current beam is less than a threshold value; the quality value of at least one new beam is greater than the quality value of a current beam plus a threshold value; the quality value of at least one new beam is greater than the quality value of an active beam plus a threshold value; the quality value of at least one current beam is less than a threshold value; the total quality value of two current beams is less than a threshold value; the absolute value of the difference between the quality values ​​of two current beams is greater than a threshold value; the quality value of one of the current beams is greater than the total quality value of the two current beams plus a threshold value; the quality value of at least one new beam is greater than the quality value of at least one current beam. Add a threshold value; the quality value of at least one new beam is greater than the first threshold value and greater than the threshold value of the best current beam plus the second threshold value; the quality value of at least one new beam is greater than the total quality value of the two current beams plus the threshold value; the total quality value of at least two new beams is greater than the total quality value of the two current beams plus the threshold value; the total quality value of at least two new beams is greater than the quality value of one current beam plus the threshold value; the total quality value of at least one new beam and the current beam is greater than the quality value of this current beam plus the threshold value; the quality value of at least one current beam is greater than the threshold value; the quality value of at least one new beam is greater than the threshold value; the total quality value of at least two new beams is greater than the threshold value. Threshold values; the quality value of at least one current beam in the current beam group is less than the threshold value; the total quality value of the two current beams in the current beam group is less than the threshold value; the absolute value of the difference between the quality values ​​of the two current beams in the current beam group is greater than the threshold value; the quality value of at least one current beam in the current beam group is greater than the total quality value of the two current beams plus the threshold value; the quality value of at least one new beam in at least one new beam group is greater than the quality value of at least one current beam in the current beam group plus the threshold value; the quality value of at least one new beam in at least one new beam group is greater than the first threshold value and greater than the quality value of the best current beam in the current beam group plus the threshold value; The quality value of at least one new beam in at least one new beam group is greater than the total quality value of the two current beams in the current beam group plus a threshold value; the total quality value of the two new beams in at least one new beam group is greater than the total quality value of the two current beams in the current beam group plus a threshold value; the total quality value of the two new beams in at least one new beam group is greater than the quality value of one current beam in the current beam group plus a threshold value; the quality value of at least one current beam in the current beam group is greater than a threshold value; the quality value of at least one new beam in at least one new beam group is greater than a threshold value; or the total quality value of the two new beams in at least one new beam group is greater than a threshold value (step 2010).

[0129] Please refer to Figure 21, which illustrates a flowchart of a beam management method performed in a base station according to a second embodiment of the present invention. The base station (e.g., TRP 200-1) transmits a beam indication, wherein the indication includes at least one of the following: information related to the transmission receiving point, information related to the transmission configuration indication status, and information related to the cell, or the indication method is one of the following: a single-level indication method or a two-level indication method (step 2110).

[0130] Please refer to Figure 22, which illustrates a flowchart of a beam management method performed in a base station according to a third embodiment of the present invention. The base station (e.g., TRP 200-1) receives beam information, wherein the beam information includes at least one of the following: the quality value of the current beam; the quality value of another beam in the current beam group; an indication that the quality value of the other beam is better or worse than the current beam; the quality value of the activated beam; the quality value of another beam in the activated beam group; an indication that the quality value of the other beam is better or worse than the activated beam; an indication that the quality value of the other beam is better or worse than the best new beam; an indication of the order of the quality values ​​of the current beams; the absolute value of the difference in the quality values ​​of the current beams; the total quality value of the current beams; the index of the new beam; the quality value of the new beam; or the total quality value of the new beam (step 2210).

[0131] The beam indication information includes at least one of the following: information related to the cell to which the beam belongs, information related to the TRP (Transmission Representation Point) to which the beam belongs, and information related to the TCI (Transmission Control Point) status to which the beam belongs. The cell information to which the beam belongs can be the cell's sequence number in the cell list, the cell ID, or the BWP ID. The TRP information to which the beam belongs is used to indicate the TRP to which the beam belongs, and can also be the TRP information to which the TCI status belongs. The TRP information to which the beam belongs can be an explicit TRP indication (TRP ID) or an implicit TRP indication (CORESETPOOLINDEX). The TCI status information to which the beam belongs is used to indicate the TCI status to which the beam belongs. The TCI status information to which the beam belongs can be at least one of the following: the TCI status's sequence number in the indicated TCI status group, the TCI status group's sequence number in the list of active TCI status groups, the TCI status's sequence number in the active TCI status group, the TCI status's sequence number in the list of active TCI statuses, or the TCI status ID. The TCI status ID can be either an indicated or an active TCI status ID. The beam mentioned above is either the current beam or the active beam, corresponding to the indicated or active TCI status, respectively.

[0132] Beam indication information can be semi-static, dynamic, or a combination of both. Semi-static configuration is set in higher-layer parameters. These parameters can be CSI reporting configuration, CSI resource sets, or event configurations. Dynamic indication can be provided by the MAC CE. The MAC CE area includes at least one of the following: beam indication, CSI reporting configuration, CSI resource set, event configuration, serving cell, or BWP. The CSI reporting configuration area can directly represent the CSI reporting configuration ID or a bitmap representation of the CSI reporting configuration. The CSI resource set area can directly represent the CSI resource set ID or a bitmap representation of the CSI resource set. The event configuration area can directly represent the event ID or a bitmap representation of the event. The serving cell or BWP area indicates the serving cell or BWP used by the MAC CE application, or it indicates the serving cell or BWP to which the CSI reporting configuration, CSI resource set, or event belongs. The serving cell or BWP area can be either the serving cell ID or the BWP ID, respectively. The aforementioned beam is either the current beam or the active beam, corresponding to the indicated TCI state or the active TCI state, respectively.

[0133] For Type 1 and / or Type 2 events, in single-cell MDCI MTRP mode, each TRP has its own indicated TCI state. TRP 200-1 can distinguish the indicated TCI state, i.e., the current beam, using either an explicit TRP indication (TRP ID) or an implicit TRP indication (CORESETPOOLINDEX). Regarding the indication method, TRP 200-1 can choose semi-static or dynamic indication to notify UE 10. An example of a semi-static configuration data structure is as follows:

[0134] The higher-level parameter `coresetPoolIndex` indicates the TCI state corresponding to this parameter, and the beam corresponding to this TCI state is a current beam. If the higher-level parameter `coresetPoolIndex` is not configured, it defaults to 0. An example of dynamic indication is provided below.

[0135] Please refer to Figure 13, which illustrates the dynamic indication of the first type event and / or the second type event in the MDCI MTRP mode of a single cell in an embodiment of the present invention.

[0136] For Type 3 events, in single-cell MDCI MTRP mode, each TRP has its own multiple active TCI states. TRP 200-1 cannot fully distinguish active TCI states using either the explicit TRP indicator (TRP ID) or the implicit TRP indicator (CORESETPOOLINDEX). It also requires the TCI state's sequence number in the list of active TCI states to fully distinguish them, i.e., to indicate the active beam. An example of a semi-static configuration data structure is as follows:

[0137] The higher-layer parameter `coresetPoolIndex` indicates a list of active TCI states corresponding to this parameter, which contains several active TCI states (active beams). The higher-layer parameter `activatedTCI-StateNum` indicates the sequence number of a TCI state in the list of active TCI states; the beam corresponding to this TCI state is an active beam. The higher-layer parameter `activatedTCI-StateNum` has a maximum of 8 code points because the number of active TCI states in each list of active TCI states is 8. If the indicated TCI states in the list of active TCI states are excluded, the higher-layer parameter `activatedTCI-StateNum` can be a maximum of 7 code points. Please refer to Figure 14, which illustrates the dynamic indication of the type III event in the single-cell MDCI MTRP mode of this embodiment of the invention.

[0138] Optionally, TRP 200-1 uses a semi-static configuration with dynamic indication as described above, indicating a list of several active beams in the higher-level parameter coresetPoolIndex, and using MAC CE as shown in Figure 14 to indicate the sequence number of a TCI state in the list of active TCI states.

[0139] Specifically, for example, each TRP has a maximum of two active TCI states, one of which is an indicated TCI state. The active TCI state can be distinguished by using only explicit or implicit TRP indications, i.e., indicating the active beam.

[0140] In multi-cell MDCI MTRP mode, the cell-related information of the beam can be used to distinguish the indicated TCI state, i.e., the current beam; the cell-related information and the TCI state-related information of the beam can be used to distinguish the active TCI state, i.e., the active beam. The cell information can be the cell's sequence number in the cell list. The TCI state-related information can be the TCI state's sequence number in the list of active TCI states, or the TCI state ID. This information can be semi-statically configured, dynamically indicated, or a combination of both. An example of a semi-statically configured data structure is as follows:

[0141] The higher-layer parameter `cell` indicates the TCI state corresponding to this parameter, and the beam corresponding to this TCI state is a current beam. If the higher-layer parameter `cell` is not configured, it defaults to `cell` being 0. A higher-layer parameter `cell` of 0 indicates the TCI state corresponding to the cell with the lowest ID in the cell list or the cell listed earlier; a higher-layer parameter `cell` of 1 indicates the TCI state corresponding to the cell with the highest ID in the cell list or the cell listed later.

[0142] The cell information for dynamic indication occupies 1 bit. The first code point (e.g., '0') indicates the TCI status of the cell with the smallest ID in the cell list or the cell listed earlier; the second code point (e.g., '1') indicates the TCI status of the cell with the largest ID in the cell list or the cell listed later.

[0143] For Type I and / or Type II events, in single-cell SDCI MTRP mode, each cell has one indicated TCI state group, containing two TCI states. The indicated TCI state, i.e., the current beam, can be distinguished by its sequence number within the indicated TCI state group. An example of the semi-static configuration data structure is as follows:

[0144] The high-level parameter indicatedTCI-StateNum indicates the sequence number of a TCI state within the indicated TCI state group. If the high-level parameter indicatedTCI-StateNum is not configured, it defaults to the first TCI state in the TCI state group. Please refer to Figure 15, which illustrates the dynamic indication of the corresponding Type I and / or Type II events in SDCI MTRP mode according to an embodiment of the present invention.

[0145] For Type 3 events, in single-cell SDCI MTRP mode, each cell has multiple active TCI state groups, and each active TCI state group contains one or two TCI states. The active TCI state is distinguished by its sequence number in the list of active TCI state groups plus its sequence number within the active TCI state group, thus indicating the active beam. An example of the semi-static configuration data structure is as follows:

[0146] The high-level parameter `activatedTCI-StateGroupNum` indicates the sequence number of a TCI state group in the list of active TCI state groups. This TCI state group is indicated by the high-level parameter `activatedTCI-StateGroupNum`. If the high-level parameter `activatedTCI-StateNum` is not configured, it defaults to the first TCI state in the TCI state group. Please refer to Figure 16, which illustrates the dynamic indication of the corresponding Type III event in SDCI MTRP mode according to an embodiment of the present invention.

[0147] In multi-cell SDCI MTRP mode, the indicated TCI state or active TCI state can be distinguished using information related to the cell to which the beam belongs and information related to the TCI state to which the beam belongs, i.e., indicating the current beam or the active beam. Cell information can be the cell's sequence number in the cell list or the cell ID. TCI state-related information can be at least one of the following: the TCI state's sequence number in the indicated TCI state group, the TCI state's sequence number in the list of active TCI states, the TCI state group's sequence number in the list of active TCI state groups, the TCI state's sequence number in the active TCI state group, or the TCI state ID. This information can be semi-statically configured, dynamically indicated, or a combination of both. An example of a semi-statically configured data structure is as follows:

[0148] The higher-layer parameter cell indicates the TCI state corresponding to this parameter, and the beam corresponding to this TCI state is a current beam. If the higher-layer parameter cell is not configured, the default cell value is 0. The correspondence between the higher-layer parameter cell and the cells in the cell list can be as follows: the cells in the cell list are arranged by ID, or the cells in the cell list are arranged sequentially.

[0149] In particular, some cells have only one indicated TCI status, and the indicated TCI status can be distinguished using only the cell information to which the beam belongs, that is, the current beam.

[0150] The number of bits for the CSI-reported configuration ID in the above dynamic indication is equal to... M represents the number of CSI reporting configurations or the number of CSI reporting configurations that include event configurations.

[0151] Optionally, TRP 200-1 uses a semi-static configuration with dynamic indication as described above, where the high-level parameter activatedTCI-StateGroupNum indicates the sequence number of a TCI state group in the list of active TCI state groups, and MAC CE indicates the sequence number of a TCI state in the TCI state group; or the high-level parameter activatedTCI-StateNum indicates the sequence number of a TCI state in the TCI state group, and MAC CE indicates the sequence number of this TCI state group in the list of active TCI states.

[0152] Optionally, TRP 200-1 uses the sequence number of the TCI status in the list of active TCI statuses to indicate the corresponding current beam or active beam. That is, the CSI reporting configuration includes the sequence number of the TCI status in the list of active TCI statuses, and / or the MAC CE includes an indication of the sequence number of the TCI status in the list of active TCI statuses and the CSI reporting configuration ID.

[0153] Optionally, TRP 200-1 uses the TCI status ID to indicate the corresponding current or active beam, i.e., the TCI status ID is included in the CSI reporting configuration, and / or the MAC CE includes an indication of the TCI status ID and the CSI reporting configuration ID.

[0154] Optionally, TRP 200-1 replaces the above CSI reporting configuration information with CSI resource set information (e.g., CSI resource set ID), that is, configuring the current beam or active beam in the CSI resource set, or the MAC CE contains CSI resource set information and an indication of the current beam or active beam.

[0155] Optionally, TRP 200-1 may also include the serving cell ID and / or BWP ID in the MAC CE to indicate the serving cell and / or BWP of the MAC CE application, or to indicate the serving cell and / or BWP to which the CSI reporting configuration ID or CSI resource set ID belongs.

[0156] The following paragraphs also provide more detailed embodiments to illustrate the technical details of how UE 10 sends (reports) beam information corresponding to the triggered event to TRP 200-1 in operation 1180. When UE 10 detects that a Type I event has been triggered, if configured for non-group-based beam reporting, the beam reporting in the beam information includes at least one of the following tables:

[0157] Whether the index and quality value of a new beam are reported is predefined or configured by higher-level parameters. The method for reporting the beam's quality value is as follows:

[0158] Method 1: The quality value of new beam #1 is the best among the new beams, and it is reported in its entirety. The quality value of the current beam is reported in its entirety, while the quality values ​​of new beams #2 to N are reported in differential mode, with the reference value for the differential being the quality value of new beam #1.

[0159] Method 2: The quality value of the current beam is reported in full mode, while the quality values ​​of the new beams #1 to N are reported in differential mode, with the reference value of the differential being the quality value of the current beam.

[0160] Method 3: The quality value of new beam #1 is the best among the new beams. The quality value of new beam #1 is reported in full, while the quality values ​​of the current beam and new beams #2 to N are reported differentially. The reference value for the differential of the current beam is a threshold value, and the reference value for the differential of new beams #2 to N is the quality value of new beam #1.

[0161] Method 4: The quality value of new beam #1 is the best among the new beams and is reported in its entirety. The quality values ​​of the current beam and new beams #2 to N are reported differentially, with the reference value for the difference being the quality value of new beam #1. The differential quality values ​​of new beams #2 to N represent the difference between their quality values ​​and those of new beam #1, while the differential quality value of the current beam represents the difference between its quality value and that of new beam #1.

[0162] Method 5: The quality values ​​of the current beam and the new beam are reported differentially. The differential reference value of the current beam's quality value is a threshold value, and the differential reference value of the new beam's quality value is the complete value of the current beam or the differential value of the current beam (the reference value is a threshold value).

[0163] Method 6: The quality values ​​of the current beam and the new beam are reported differentially, with the differential reference value being the threshold value.

[0164] If a new beam is predefined or configured not to report, then the reporting method used for its quality value does not need to be considered. The reporting method described above can also be applied to STRP scenarios. When UE 10 detects that a Type 1 event has been triggered, if it is configured for group-based beam reporting, the beam reporting in the beam information includes at least one of the following tables:

[0165] Whether the index and quality value of the new beam, or the quality value of another beam, are reported is predefined or configured by higher-level parameters. The method for reporting the quality value of another beam is as follows:

[0166] Method 1: The quality value of new beam #1 in resource group #1 is the best among the new beams and is reported in full mode. The quality values ​​of other new beams and the quality value of another beam are reported differentially, with the reference value for the differential being the quality value of new beam #1 in resource group #1. This method requires an indication that the quality value of the other beam is better or worse than the best new beam. If this indication is the first code point (e.g., '0'), it means that the quality value of the other beam is worse than the best new beam, and the quality value of the other beam is the quality value of the best new beam minus the differential value; if this indication is the first code point (e.g., '1'), it means that the quality value of the other beam is better than the best new beam, and the quality value of the other beam is the quality value of the best new beam plus the differential value; the differential value is indicated by the quality value of the other beam. The quality value of the current beam is reported in full mode or differential mode, with the reference value for the differential being a threshold value or the quality value of the best new beam.

[0167] Method 2: The quality value of the current beam is reported in full, while the quality values ​​of all new beams and another beam are reported differentially, with the reference value for the differential being the quality value of the current beam. Additionally, this method does not require resource set indication, but it requires that resource groups #1 to N follow the same mapping order as the resource group containing the current beam. That is, beam #1 in all resource groups comes from the resource set containing the current beam, and beam #2 in all resource groups comes from another resource set, which is the same as the resource set containing the other beam.

[0168] Method 3: The quality value of new beam #1 is the best among the new beams. The quality value of new beam #1 is reported in full, while the quality values ​​of other new beams are reported differentially, with the differential reference value being the quality value of new beam #1. The quality values ​​of the current beam and another beam are reported in full.

[0169] Method 4: The quality value of new beam #1 is the best among the new beams. The quality value of new beam #1 is reported in full, while the quality values ​​of other new beams are reported differentially, with the differential reference value being the quality value of new beam #1. The quality values ​​of the current beam and another beam are reported differentially, with the differential reference value being a threshold value.

[0170] Method 5: The quality values ​​of the current beam, another beam, and the new beam are reported differentially. The reference value for the difference between the quality values ​​of the current beam and another beam is a threshold value. The reference value for the difference between the quality values ​​of the new beam is either the complete value of the current beam or the difference value of the current beam (the reference value is a threshold value). Additionally, this method does not require resource set indication, but it requires that resource groups #1 to N follow the same mapping order as the resource group containing the current beam. That is, beam #1 in all resource groups comes from the resource set containing the current beam, and beam #2 in all resource groups comes from another resource set, which is the same as the resource set containing the other beam.

[0171] Method Six: The quality values ​​of the current beam, the other beam, and the new beam are reported differentially, with the reference value for the differential being a threshold value. Additionally, this method does not require resource set indication, but it requires resource groups #1 to N to follow the same mapping order as the resource group containing the current beam. That is, beam #1 in all resource groups comes from the resource set containing the current beam, and beam #2 in all resource groups comes from another resource set, which is the same as the resource set containing the other beam.

[0172] If a new beam or another beam is predefined or configured not to report, the reporting method used for its quality value does not need to be considered. When UE 10 detects a Type 2 event being triggered, if group-based beam reporting is configured, each beam report in the beam information contains at least one of the following tables:

[0173] The number N of resource groups reported is configured by higher-layer parameters, and the other beam and the current beam can be received simultaneously by the UE. The method for reporting beam quality values ​​is as follows:

[0174] Method 1: The quality value of new beam #1 in resource group #1 is the best among the new beams and is reported in its entirety. The quality value of the other beam is also reported in its entirety. The quality values ​​of the current beam and other new beams are reported differentially, with the reference value for the differential being the quality value of new beam #1 in resource group #1. This method does not require an indication that the quality value of another beam is better or worse than the best new beam.

[0175] Method 2: The quality value of new beam #1 in resource group #1 is the best among the new beams, and it is reported in full. The quality value of the current beam is reported in full, while the quality values ​​of other new beams and another beam are reported differentially. The reference value for the differential is the quality value of new beam #1 in resource group #1. This method requires an indication that the quality value of the other beam is better or worse than the best new beam. If this indication is the first code point (e.g., '0'), it means that the quality value of the other beam is worse than the best new beam, and the quality value of the other beam is the quality value of the best new beam minus the differential value; if this indication is the first code point (e.g., '1'), it means that the quality value of the other beam is better than the best new beam, and the quality value of the other beam is the quality value of the best new beam plus the differential value; the differential value is indicated by the quality value of the other beam.

[0176] Method 3: The quality value of new beam #1 in resource group #1 is the best among the new beams, and it is reported in full. The quality value of the current beam is reported in full, while the quality values ​​of other new beams and another beam are reported differentially. The reference value for the differential of other new beams is the quality value of new beam #1 in resource group #1, and the reference value for the differential of another beam is the quality value of the current beam. This method requires an indication that the quality value of the other beam is better or worse than the current beam. If this indication is the first code point (e.g., '0'), it means that the quality value of the other beam is worse than the current beam, and the quality value of the other beam is the current beam's quality value minus the differential value; if this indication is the first code point (e.g., '1'), it means that the quality value of the other beam is better than the current beam, and the quality value of the other beam is the current beam's quality value plus the differential value; the differential value is indicated by the quality value of the other beam.

[0177] Whether the quality value of the current beam or another beam is reported is predefined or configured by higher-level parameters. If the new beam is predefined or configured not to report, then the reporting method used for its quality value does not need to be considered. If another beam is predefined or configured not to report, then the reporting method used for its quality value does not need to be considered, and indications of whether the quality value of the other beam is better or worse than the best new beam are not reported.

[0178] When UE 10 detects a Type 3 event, if configured for group-based beam reporting, each beam report in the beam information is similar to the report for the corresponding Type 2 event, but the current beam is replaced with the active beam. For example, the quality value of another beam in the resource group containing the current beam is replaced with the quality value of another beam in the resource group containing the active beam.

[0179] Beam information can be carried by a PUSCH, and the number of beams reported in a PUSCH can be determined using the method described below:

[0180] Method 1: Predefined. In the MTRP scenario, the predefined PUSCH contains M beams for reporting. In the STRP scenario, the predefined PUSCH contains N beams for reporting. Specifically, M = 2, N = 1.

[0181] Method 2: Higher-level parameter configuration. The number of beams reported by the PUSCH can be configured to 1 or 2 by higher-level parameters. This higher-level parameter is included in the PUSCH configuration. For Mode-A, this higher-level parameter is included in the DG-PUSCH configuration (PUSCH-Config). For Mode-B, this higher-level parameter is included in the CG-PUSCH configuration (ConfiguredGrantConfig). Furthermore, this higher-level parameter can be associated with the CG-PUSCH ID (ConfiguredGrantConfigIndex).

[0182] Method 3: Dynamic Indication. For example, when configured in Mode-A, the DCI dynamically indicates the number of beams reported by the PUSCH; when configured in Mode-B, the MAC CE dynamically indicates the number of beams reported by the PUSCH. The area in the MAC CE includes at least one of the following: an indication of the number of beams reported by the PUSCH, the ID of the CG-PUSCH, the ID of the serving cell, and the ID of the BWP. That is, the indication of the number of beams reported by the PUSCH is associated with the ID of the CG-PUSCH, the ID of the serving cell, and / or the ID of the BWP. The area indicating the number of beams reported by the PUSCH occupies 1 bit, with two code points indicating a count of 1 and a count of 2, respectively.

[0183] Method 4: Dynamically changed based on configuration. If there is an MTRP-related configuration, the number of beams reported by the PUSCH is M; if there is no MTRP-related configuration, the number of beams reported by the PUSCH is N. Specifically, M=2, N=1. The MTRP-related configuration includes at least one of the following: CORESETPOOLINDEX is 1; the CSI resource configuration includes 2 CSI-RS resource sets; and there are 2 SRS resource sets based on codebook or non-codebook transmission.

[0184] Method 5: Dynamic change according to TCI states. The number of beam reports included in PUSCH dynamically changes according to the number of indicated TCI states (the number of TCI states included in the indicated TCI state group). If the number of indicated TCI states is 2, the number of beam reports included in PUSCH is M. If the number of indicated TCI states is 1, the number of beam reports included in PUSCH is N. Alternatively, the number of beam reports included in PUSCH dynamically changes according to the available number of indicated TCI states. If the available number of indicated TCI states is 2 (that is, the TCI selection field in DCI is '10'), the number of beam reports included in PUSCH is 2. If the available number of indicated TCI states is 1 (that is, the TCI selection field in DCI is '00' or '01'), the number of beam reports included in PUSCH is 1. Alternatively, the number of beam reports included in PUSCH dynamically changes according to the number of TCI states included in the activated TCI state group. If any activated TCI state group includes 2 TCI states, the number of beam reports included in PUSCH is M; if all activated TCI state groups include 1 TCI state, the number of beam reports included in PUSCH is N. Specifically, M=2 and N=1.

[0185] In addition to the first-type event, second-type event and third-type event described above, more customized events are provided in the embodiments of the present invention. Regarding the first customized event, in operation 1150, when UE 10 finds that the quality value of at least one current beam is less than a threshold, it determines to trigger the event. The judgment formula is expressed as: Q current,i <Thr, where Q current,i represents the quality value of the i-th current beam, Thr represents the threshold, and i=1,2. Then, in operation 1180, UE 10 reports this event to TRP 200-1, notifying the network side that the quality of one or more current beams is poor, so that the network side can schedule UE 10 to quickly search for new beams (for example, small-range scanning or re-refinement) to replace the poor current beams and avoid entering the beam failure recovery procedure.

[0186] For example, when UE 10 is in MTRP transmission mode, it has two current beams, corresponding to TRP 200-1 and 200-2 respectively. In operation 1130, the TCI state group indicated by TRP 200-1 includes TCI state 1 and TCI state 2, and / or both TCI states are indicated as available. TCI state 1 and TCI state 2 correspond to current beam 1 and current beam 2 respectively. In operation 1150, when UE 10 detects that the quality value of one of the current beams is less than a threshold value, this event is triggered; for example, the quality value of current beam 1 is less than the threshold value. In operation 1180, UE 10 reports the triggering of this event and related beam information to TRP 200-1, such as the quality value of current beam 1 and the quality value of current beam 2. Next, the network side sends a command to UE 10 to refine the wide beam corresponding to the current beam 1, so that the DCI can trigger aperiodic CSI reporting and aperiodic CSI-RS. These CSI-RS are quasi-co-located with the wide beam of the current beam 1.

[0187] For another example, when UE 10 is in STRP transmission mode, there is only one current beam. In operation 1130, the TCI state group indicated by TRP 200-1 contains only TCI state 1, or the indicated TCI state group contains both TCI state 1 and TCI state 2, and only TCI state 1 is indicated as available. TCI state 1 corresponds to current beam 1. In operation 1150, when UE 10 detects that the quality value of current beam 1 is less than a threshold value, this event is triggered, for example, the quality value of current beam 1 corresponding to TCI state 1 in the indicated TCI state group is less than the threshold value. In operation 1180, UE 10 reports the triggering of this event and related beam information to TRP 200-1, for example, the quality value of current beam 1. Next, the network side sends a command to UE 10 to refine the wide beam corresponding to the current beam 1, so that the DCI can trigger aperiodic CSI reporting and aperiodic CSI-RS. These CSI-RS are quasi-co-located with the wide beam of the current beam 1.

[0188] When the first custom event is triggered, the beam report includes at least one of the following:

[0189] If configured for group-based beam reporting, this event can also be described as: the quality value of at least one current beam in the current beam group is less than a threshold value. The beam report content includes at least one of the following:

[0190] Regarding the second custom event, in operation 1150, when UE 10 detects that the total quality value of the two current beams is less than a threshold, it determines to trigger the event. The formula for this determination is as follows: in The total quality value represents the two current beams, and Thr represents the threshold value. Next, in operation 1180, UE 10 reports this event to TRP 200-1, notifying TRP 200-1 that the total quality of the two current beams is poor. This allows the network side to schedule UE 10 to quickly perform a new beam search (e.g., a small-range scan or re-refinement) to replace the poorer current beam and avoid entering the beam failure recovery procedure.

[0191] For example, when UE 10 is in MTRP transmission mode, it has two current beams, corresponding to TRP 200-1 and 200-2 respectively. In operation 1130, the TCI state group indicated by TRP 200-1 includes TCI state 1 and TCI state 2, and / or both TCI states are indicated as available, with TCI state 1 and TCI state 2 corresponding to current beam 1 and current beam 2 respectively. In operation 1150, when UE 10 detects that the total quality value of the two current beams is less than a threshold, this event is triggered, for example, the total quality value of current beam 1 and current beam 2 is less than the threshold. In operation 1180, UE 10 reports the triggering of this event and related beam information to TRP 200-1, for example, the total quality value of current beam 1 and current beam 2. Next, the network side sends a command to UE 10 to refine the wide beam corresponding to the current beam 1, so that the DCI can trigger aperiodic CSI reporting and aperiodic CSI-RS. These CSI-RS are quasi-co-located with the wide beam of the current beam 1. Alternatively, the DCI can trigger aperiodic CSI reporting and aperiodic CSI-RS again, and these CSI-RS are quasi-co-located with the wide beam of the current beam 1.

[0192] When the second defined event is triggered, the beam report includes at least one of the following:

[0193] If configured for group-based beam reporting, this event can also be described as: the total quality value of the two current beams in the current beam group is less than a threshold value.

[0194] The beam report includes at least one of the following:

[0195] Regarding the third custom event, in operation 1150, when UE 10 detects that the absolute value of the difference between the quality values ​​of the two current beams is greater than a threshold value, it determines to trigger the event. The formula for judgment is expressed as: |Q current,i -Qcurrent,j |>Thr, where Q current,i Q represents the quality value of the i-th current beam. current,j Let represent the quality value of the j-th current beam, and Thr represent the threshold value, where i,j = 1, 2 and i ≠ j. Then, in operation 1180, UE 10 reports this event to TRP 200-1, notifying TRP 200-1 that one of the current beams is significantly better than the other, so that the network side can schedule UE 10 to quickly switch from the two current beams to the better one, or quickly perform a new beam search to replace the worse one. For example, when UE 10 is in MTRP transmission mode, there are two current beams, corresponding to TRP 200-1 and 200-2 respectively. In operation 1130, the TCI state group indicated by TRP 200-1 includes TCI state 1 and TCI state 2, and / or both TCI states are indicated to be available, with TCI state 1 and TCI state 2 corresponding to current beam 1 and current beam 2 respectively.

[0196] In operation 1150, when UE 10 detects that the difference in quality values ​​between two current beams is greater than a threshold, this event is triggered. For example, the difference in quality values ​​between current beam 1 and current beam 2 is greater than the threshold, and current beam 1 is better than current beam 2. In operation 1180, UE 10 reports the triggering of this event and related beam information to TRP 200-1. Then, the network side issues a command to UE 10, causing UE 10 to switch from MTRP transmission mode to STRP transmission mode. For example, the network side updates the TCI state group indicated by DCI via MAC CE so that it only contains TCI state 1, or it does not update the TCI state group indicated by DCI via MAC CE, but instead indicates that only TCI state 1 is available in the TCI state group.

[0197] Optionally, in operation 1150, when UE 10 detects that the quality value of one current beam is greater than the quality value of another current beam plus a threshold value, it determines to trigger an event. The formula for this determination is expressed as: Q current,i Q current,j +Thr, where Q current,i Q represents the quality value of the i-th current beam. current,j represents the quality value of the j-th current beam, Thr represents the threshold value, i,j=1,2 and i≠j.

[0198] Optionally, in operation 1150, when UE 10 detects that the quality value of one current beam is greater than a first threshold and the quality value of another current beam is less than a second threshold, the determination formula is expressed as: Q ccurrent,i >Thr1 and Q current,j >Thr2, where Q current,iQ represents the quality value of the i-th current beam. current,j Thr1 represents the quality value of the j-th current beam, Thr2 represents the first threshold value, and Thr2 represents the second threshold value. i,j = 1,2 and i ≠ j.

[0199] When the third custom event is triggered, the beam report includes at least one of the following:

[0200] Regarding the fourth custom event, in operation 1150, when UE 10 detects that the quality value of at least one current beam is greater than the total quality value of the two current beams plus a threshold value, it determines to trigger the event. The formula for the judgment is expressed as: Q current,i This represents the quality value of the i-th current beam. The total quality value of the two current beams is represented by Thr, where Thr represents the threshold value, and i = 1, 2. Next, in operation 1180, UE 10 reports this event to TRP 200-1, notifying TRP 200-1 that the quality value of at least one current beam is better than the total quality value of the two current beams, so that the network side can schedule the UE to quickly switch from the two current beams to the better current beam. For example, when UE 10 is in MTRP transmission mode, there are two current beams, corresponding to TRP 200-1 and 200-2 respectively. In operation 1130, the TCI state group indicated by TRP 200-1 includes TCI state 1 and TCI state 2, and / or both TCI states are indicated to be available, with TCI state 1 and TCI state 2 corresponding to current beam 1 and current beam 2 respectively. In operation 1150, when UE 10 detects that the quality value of one current beam is greater than the total quality value of the two current beams, this event is triggered. For example, the quality value of current beam 3 is greater than the total quality value of current beams 1 and 2. In operation 1180, UE 10 reports the triggering of this event and related beam information to TRP 200-1. Then, the network side issues a command to UE 10, causing UE 10 to switch from MTRP transmission mode to STRP transmission mode. For example, the network side updates the TCI state group indicated by DCI via MAC CE so that it only contains TCI state 1, or it does not update the TCI state group indicated by DCI via MAC CE, but instead indicates that only TCI state 1 is available in the TCI state group.

[0201] When the fourth custom event is triggered, the beam report contains at least one of the following:

[0202] If configured for group-based beam reporting, this event can also be described as: the quality value of at least one current beam in the current beam group is greater than the total quality value of the two current beams plus a threshold value. The beam report content includes at least one of the following:

[0203] Regarding the fifth custom event, in operation 1150, when UE 10 detects that the quality value of at least one new beam is greater than the quality value of at least one current beam plus a threshold value, the event is triggered. The formula for this determination is expressed as: Q new,j Q current,i +Thr, where Q new,j Q represents the quality value of the j-th new beam. current,i This represents the quality value of the i-th current beam, and Thr represents the threshold value, i = 1, 2, j = 1, 2, 3, etc. Next, in operation 1180, UE 10 reports this event to TRP 200-1, notifying the network side that one or more new beams have been found with better quality than one of the current beams, so that the network side can schedule the UE to switch from the current beam to the new beam.

[0204] For example, when UE 10 is in MTRP transmission mode, it has two current beams, corresponding to TRP 200-1 and 200-2 respectively. In operation 1130, the TCI state group indicated by TRP 200-1 includes TCI state 1 and TCI state 2, and / or both TCI states are indicated as available. TCI state 1 and TCI state 2 correspond to current beam 1 and current beam 2 respectively. In operation 1150, when UE 10 detects that the quality value of one or more new beams is greater than that of one of the current beams plus a threshold value, this event is triggered. For example, the quality values ​​of new beam 1, new beam 2, and new beam 3 are greater than that of current beam 1. In operation 1180, UE 10 reports the triggering of this event and the related beam information to TRP 200-1. Then, the network side determines whether the reported new beams and current beams belong to the same TRP. For example, new beam 2 and new beam 3 belong to the same TRP as current beam 1. The network side issues a command to replace the current beam of the same TRP with a better new beam. For example, the TCI state group indicated by the DCI is updated via MAC CE, and TCI state 1 is replaced with TCI state 4 corresponding to the new beam 2. That is, the indicated TCI state group includes TCI state 2 and TCI state 4, and / or the DCI indicates that TCI state 2 and TCI state 4 are available.

[0205] For another example, when UE 10 is in STRP transmission mode, there is only one current beam. In operation 1130, the TCI state group indicated by TRP 200-1 contains only TCI state 1, or the indicated TCI state group contains both TCI state 1 and TCI state 2, and only TCI state 1 is indicated as available. TCI state 1 corresponds to current beam 1. In operation 1150, when UE 10 discovers that the quality value of one or more new beams is greater than that of one of the current beams plus a threshold value, this event is triggered. For example, the quality values ​​of new beam 1, new beam 2, and new beam 3 are greater than that of current beam 1. In operation 1180, UE 10 reports the triggering of this event and the related beam information to TRP 200-1. Then, the network side determines whether the reported new beams and the current beams belong to the same TRP. For example, new beams 2 and 3 belong to the same TRP as current beam 1. If so, the network side issues a command to replace the current beam of the same TRP with one of the better new beams. For example, by updating the TCI state group indicated by the DCI via MAC CE, TCI state 1 is replaced with TCI state 4 corresponding to the new beam 2, that is, the indicated TCI state group contains TCI state 4, and / or the DCI indicates that TCI state 4 is available.

[0206] Optionally, in operation 1150, when UE 10 detects that the quality value of at least one new beam is greater than the quality value of the worst current beam plus a threshold value, an event is triggered. The formula for this determination is expressed as: Q new,j Q current,worst +Thr, where Q new,j Q represents the quality value of the j-th new beam. current,worst This represents the worst quality value of the current beam, Thr represents the threshold value, and j = 1, 2, 3, etc.

[0207] When the fifth custom event is triggered, the beam report contains at least one of the following:

[0208] If configured for group-based beam reporting, this event can also be described as: the quality value of at least one new beam in at least one new beam group is greater than the quality value of at least one current beam in the current beam group plus a threshold value. The beam reporting content includes at least one of the following:

[0209] Regarding the sixth custom event, in operation 1150, when UE 10 detects that the quality value of at least one new beam is greater than the first threshold and greater than the quality value of the best current beam plus the second threshold, an event is triggered. The formula for this judgment is expressed as: Q new,j >Thr1 and Q new,j Q current,best+Thr2, where Q new,j Q represents the quality value of the j-th new beam. current,best The quality value represents the best current beam, Thr1 represents the first threshold value, Thr2 represents the second threshold value, and j = 1, 2, 3, etc. Next, in operation 1180, UE 10 reports this event to TRP 200-1, notifying the network side that one or more new beams have been found with better quality than the best current beam, such as supporting PDSCH at or above layer 4, so that the network side can schedule UE 100 to quickly switch from the two current beams to this new beam.

[0210] For example, when UE 10 is in MTRP transmission mode, there are two current beams, corresponding to TRP 200-1 and 200-2 respectively. In operation 1130, the TCI state group indicated by TRP 200-1 includes TCI state 1 and TCI state 2, and / or both TCI states are indicated as available, with TCI state 1 and TCI state 2 corresponding to current beam 1 and current beam 2 respectively. In operation 1150, when UE 10 detects that the quality value of at least one new beam is greater than a first threshold and greater than the quality value of the best current beam plus a second threshold, this event is triggered. For example, the quality values ​​of new beam 1 and new beam 2 are both greater than the first threshold and greater than the quality value of current beam 1, assuming current beam 1 is the best current beam. In operation 1180, UE 10 reports the triggering of this event and related beam information to TRP 200-1. Next, the network side sends a command to UE 10, causing UE 10 to replace the two current beams with one of the better new beams. For example, by updating the TCI state group indicated by DCI through MAC CE, TCI state 1 is replaced with TCI state 3 corresponding to the new beam 1, that is, the indicated TCI state group contains TCI state 3, and / or DCI indicates that TCI state 3 is available.

[0211] Optionally, in operation 1150, when UE 10 detects that the quality value of at least one new beam is greater than the quality value of the best current beam plus a threshold value, an event is triggered. The formula for this determination is expressed as: Q new,j Q current,best +Thr, where Q new,j Q represents the quality value of the j-th new beam. current,best This represents the best quality value of the current beam, Thr represents the threshold value, and j = 1, 2, 3, etc.

[0212] When the sixth custom event is triggered, the beam report contains at least one of the following:

[0213] If configured for group-based beam reporting, this event can also be described as follows: the quality value of at least one new beam in at least one new beam group is greater than a first threshold, and greater than the quality value of the best current beam in the current beam group plus a second threshold. The beam reporting content includes at least one of the following:

[0214] Regarding the seventh custom event, in operation 1150, when UE 10 detects that the quality value of at least one new beam is greater than the sum of the quality values ​​of the two current beams plus a threshold value, the event is triggered. The formula for this determination is as follows: Q new,j This represents the quality value of the j-th new beam. This represents the total quality value of the two current beams, Thr represents the threshold value, and j = 1, 2, 3, etc. Next, in operation 1180, UE 10 reports this event to TRP 200-1, notifying the network side that one or more new beams have been found with better quality than the total quality of the two current beams, such as supporting PDSCH at or above layer 4, so that the network side can schedule UE 10 to quickly switch from the two current beams to this new beam.

[0215] For example, when UE 10 is in MTRP transmission mode, there are two current beams, corresponding to TRP 200-1 and 200-2 respectively. In operation 1130, the TCI state group indicated by TRP 200-1 includes TCI state 1 and TCI state 2, and / or both TCI states are indicated as available, with TCI state 1 and TCI state 2 corresponding to current beam 1 and current beam 2 respectively. In operation 1150, when UE 10 detects that the quality value of at least one new beam is greater than the total quality value of two of the current beams, this event is triggered; for example, the quality values ​​of new beam 1 and new beam 2 are greater than the total quality value of current beam 1 and current beam 2 respectively. In operation 1180, UE 10 reports the triggering of this event and the related beam information to TRP 200-1. Next, the network side sends a command to UE 10, causing UE 10 to replace the two current beams with one of the better new beams. For example, by updating the TCI state group indicated by DCI through MAC CE, TCI state 1 is replaced with TCI state 3 corresponding to the new beam 1, that is, the indicated TCI state group contains TCI state 3, and / or DCI indicates that TCI state 3 is available.

[0216] When the seventh custom event is triggered, the beam report contains at least one of the following:

[0217] If configured for group-based beam reporting, this event can also be described as: the quality value of at least one new beam in at least one new beam group is greater than the total quality value of the two current beams in the current beam group plus a threshold value. The beam reporting content includes at least one of the following:

[0218] Regarding the eighth custom event, in operation 1150, when UE 10 detects that the total quality value of at least two new beams is greater than the total quality value of the two current beams plus a threshold value, the event is triggered. The formula for this determination is as follows: in This represents the total quality value of the i-th and j-th new beams. The total quality value represents the two current beams, and Thr represents the threshold value, where i,j = 1, 2, 3, etc., and i ≠ j. Then, in operation 1180, UE 10 reports this event to TRP 200-1, notifying the network side that at least two new beams have been found whose total quality is better than the total quality of the two current beams, so that the network side can schedule the UE to quickly switch from the two current beams to these two new beams.

[0219] For example, when UE 10 is in MTRP transmission mode, there are two current beams, corresponding to TRP 200-1 and 200-2 respectively. In operation 1130, the TCI state group indicated by TRP 200-1 includes TCI state 1 and TCI state 2, and / or both TCI states are indicated as available, with TCI state 1 and TCI state 2 corresponding to current beam 1 and current beam 2 respectively. In operation 1150, this event is triggered when UE 10 detects that the total quality value of at least two new beams is greater than the total quality value of the two current beams; for example, the total quality values ​​of new beam 1 and new beam 2, or new beam 1 and new beam 3 are greater than the total quality values ​​of current beam 1 and current beam 2 respectively. In operation 1180, UE 10 reports the triggering of this event and related beam information to TRP 200-1. Next, the network side determines whether the reported new beam belongs to the same TRP. For example, new beam 1 and new beam 2 do not belong to the same TRP, but new beam 1 and new beam 3 belong to the same TRP. The network side issues a command to replace the two current beams with two better new beams. For example, it updates one of the active TCI state groups via MAC CE to include TCI state 3 corresponding to new beam 1 and TCI state 4 corresponding to new beam 2. Then, DCI indicates this active TCI state group, and / or DCI indicates that both TCI state 3 and TCI state 4 are available.

[0220] When the eighth custom event is triggered, the beam report contains at least one of the following:

[0221] If configured for group-based beam reporting, this event can also be described as: the total quality value of the two new beams in at least one new beam group is greater than the total quality value of the two current beams in the current beam group plus a threshold value. The beam reporting content includes at least one of the following:

[0222] Regarding the ninth custom event, in operation 1150, when UE 10 detects that the total quality value of at least two new beams is greater than the quality value of a current beam plus a threshold value, the event is triggered. The formula for this determination is as follows: in Q represents the total mass value of the i-th and j-th new beams. current The current beam quality value is represented by `Thr`, where `i`, `j` = 1, 2, 3, ... and `i` ≠ `j`. Then, in operation 1180, UE 10 reports this event to TRP 200-1, notifying the network side that at least two new beams have been found with a total quality better than the current beam, so that the network side can schedule the UE to quickly switch from the current beam to these two new beams.

[0223] For example, when UE 10 is in STRP transmission mode, there is only one current beam. In operation 1130, the TCI state group indicated by TRP 200-1 contains only TCI state 1, or the indicated TCI state group contains both TCI state 1 and TCI state 2, and only TCI state 1 is indicated as available. TCI state 1 corresponds to current beam 1. In operation 1150, when UE 10 detects that the total quality value of at least two new beams is greater than the quality value of the current beam, this event is triggered. For example, the total quality values ​​of new beams 1 and 2, or new beams 1 and 3, are greater than the quality value of current beam 1. In operation 1180, UE 10 reports the triggering of this event and the related beam information to TRP 200-1. Then, the network side determines whether the reported new beams belong to the same TRP. For example, new beams 1 and 2 do not belong to the same TRP, while new beams 1 and 3 belong to the same TRP. The network side issues a command to replace the current beam with two better new beams. For example, it updates one of the active TCI state groups via MAC CE to include TCI state 3 corresponding to the new beam 1 and TCI state 4 corresponding to the new beam 2. Then, DCI indicates this active TCI state group and / or DCI indicates that both TCI state 3 and TCI state 4 are available.

[0224] When the ninth custom event is triggered, the beam report contains at least one of the following:

[0225] If configured for group-based beam reporting, this event can also be described as: the total quality value of two new beams in at least one new beam group is greater than the quality value of one current beam in the current beam group plus a threshold value. The beam reporting content includes at least one of the following:

[0226] Regarding the tenth custom event, in operation 1150, when UE 10 discovers that the total quality value of at least one new beam and the current beam is greater than the quality value of the current beam plus a threshold value, it determines to trigger the event. Then, in operation 1180, UE 10 reports this event to TRP 200-1, notifying the network side that at least one new beam has been found whose total quality, together with the current beam, is better than the quality of the current beam, so that the network side can schedule the UE to quickly switch from the current beam to both the new and current beams.

[0227] For example, when UE 10 is in STRP transmission mode, there is only one current beam. In operation 1130, the TCI state group indicated by TRP 200-1 contains only TCI state 1, or the indicated TCI state group contains both TCI state 1 and TCI state 2, and only TCI state 1 is indicated as available. TCI state 1 corresponds to current beam 1. In operation 1150, when UE 10 detects that the total quality value of at least one new beam and the current beam is greater than the quality value of the current beam, this event is triggered. For example, the total quality value of new beam 1, new beam 2, and current beam 1 is greater than the quality value of current beam 1. In operation 1180, UE 10 reports the triggering of this event and the related beam information to TRP 200-1. Then, the network side determines whether the reported new beam belongs to the same TRP. For example, new beam 1 and current beam 1 belong to the same TRP, while new beam 2 and current beam 2 do not belong to the same TRP. The network side issues a command to replace the current beam with two better new beams. For example, it updates the TCI state group indicated by DCI via MAC CE so that it includes TCI state 1 and TCI state 4 corresponding to the new beam 2, and / or DCI indicates that both TCI state 1 and TCI state 4 are available.

[0228] When the tenth custom event is triggered, the beam report contains at least one of the following:

[0229] Regarding the eleventh custom event, in operation 1150, when UE 10 detects that the quality value of at least one current beam is greater than a threshold value, it determines to trigger the event. The formula for judgment is expressed as: Q current,i >Thr, where Q current,iThis represents the quality value of the i-th current beam, and Thr represents the threshold value, i = 1, 2. Next, in operation 1180, UE 10 reports this event to TRP 200-1, notifying the network side that at least one current beam has very good quality, such as being able to support PDSCH of layer 4 or higher, so that the network side can schedule the UE to quickly switch to this current beam.

[0230] For example, when UE 10 is in MTRP transmission mode, there are two current beams, corresponding to TRP 200-1 and 200-2 respectively. In operation 1130, the TCI state group indicated by TRP 200-1 includes TCI state 1 and TCI state 2, and / or both TCI states are indicated as available, with TCI state 1 and TCI state 2 corresponding to current beam 1 and current beam 2 respectively. In operation 1150, when UE 10 detects that the quality value of one of the current beams is greater than a threshold value, this event is triggered; for example, the quality value of current beam 1 is greater than the threshold value. In operation 1180, UE 10 reports the triggering of this event and the related beam information to TRP 200-1. Next, the network side issues a command to switch the UE from MTRP transmission mode to STRP transmission mode. For example, the MAC CE updates the TCI state group indicated by the DCI so that it only contains TCI state 1, or the MAC CE does not update the TCI state group indicated by the DCI, and the DCI indicates that only TCI state 1 is available in the TCI state group.

[0231] When the eleventh custom event is triggered, the beam report includes at least one of the following:

[0232] If configured for group-based beam reporting, this event can also be described as: at least one current beam in the current beam group has a quality value greater than a threshold value. The beam report content includes at least one of the following:

[0233] Regarding the twelfth custom event, in operation 1150, when UE 10 detects that the quality value of at least one new beam is greater than a threshold value, the event is triggered. The formula for this determination is expressed as: Q new,i >Thr, where Q new,i This represents the quality value of the i-th new beam, where Thr represents the threshold value, i = 1, 2, etc. Next, in operation 1180, UE 10 reports this event to TRP 200-1, notifying the network side that at least one new beam has very good quality, such as being able to support PDSCH of layer 4 or higher, so that the network side can schedule UE 10 to quickly switch to this new beam.

[0234] For example, when UE 10 is in MTRP transmission mode, there are two current beams, corresponding to TRP 200-1 and 200-2 respectively. In operation 1130, the TCI state group indicated by TRP 200-1 includes TCI state 1 and TCI state 2, and / or both TCI states are indicated as available, with TCI state 1 and TCI state 2 corresponding to current beam 1 and current beam 2 respectively. In operation 1150, this event is triggered when UE 10 detects one or more new beam quality values ​​greater than a threshold value, for example, the quality values ​​of new beam 1 and new beam 2 are greater than the threshold value. In operation 1180, UE 10 reports the triggering of this event and related beam information to TRP 200-1. Next, the network side issues a command to switch the UE from MTRP transmission mode to STRP transmission mode. For example, it updates the TCI state group indicated by DCI through MAC CE, replaces TCI state 1 with TCI state 3 corresponding to the new beam 1, that is, the indicated TCI state group contains TCI state 3, and / or DCI indicates that TCI state 3 is available.

[0235] When the twelfth custom event is triggered, the beam report contains at least one of the following:

[0236] If configured for group-based beam reporting, this event can also be described as: the quality value of at least one new beam in at least one new beamgroup is greater than a threshold value. The beam report content includes at least one of the following:

[0237] Regarding the thirteenth custom event, in operation 1150, when UE 10 detects that the total quality value of at least two new beams exceeds a threshold, the event is triggered. The formula for this determination is as follows: in This represents the total quality value of the i-th and j-th new beams, where Thr represents the threshold value, i,j = 1, 2, 3, etc., and i ≠ j. Then, in operation 1180, UE 10 reports this event to TRP 200-1, notifying the network side that the total quality of at least two new beams is very good, so that the network side can schedule UE 10 to quickly switch to this new beam.

[0238] For example, when UE 10 is in MTRP transmission mode, it has two current beams, corresponding to TRP 200-1 and 200-2 respectively. In operation 1130, the TCI state group indicated by TRP 200-1 includes TCI state 1 and TCI state 2, and / or both TCI states are indicated as available. TCI state 1 and TCI state 2 correspond to current beam 1 and current beam 2 respectively. In operation 1150, when UE 10 detects that the total quality value of two or more new beams is greater than a threshold, this event is triggered. For example, the total quality values ​​of new beam 1 and new beam 2, or new beam 1 and new beam 3, are greater than the threshold values ​​respectively. In operation 1180, UE 10 reports the triggering of this event and the related beam information to TRP 200-1. Then, the network side determines whether the reported new beams belong to the same TRP. For example, new beam 1 and new beam 2 do not belong to the same TRP, while new beam 1 and new beam 3 belong to the same TRP. The network side issues a command to switch the UE from MTRP transmission mode to STRP transmission mode. For example, it updates one of the active TCI state groups through MAC CE to include TCI state 3 corresponding to the new beam 1 and TCI state 4 corresponding to the new beam 2. Then, DCI indicates this active TCI state group and / or DCI indicates that both TCI state 3 and TCI state 4 are available.

[0239] When the thirteenth custom event is triggered, the beam report includes at least one of the following:

[0240] If configured for group-based beam reporting, this event can also be described as: the total quality value of two new beams in at least one new beam group is greater than a threshold value. The beam report content includes at least one of the following:

[0241] The following is a detailed explanation of the number of reported current beam quality values ​​and new beam quality values, their order of arrangement, and the technical details of quantization.

[0242] The number of reported quality values ​​for the current beam can be determined using one of the following methods:

[0243] Method 1: Predefined. In the MTRP scenario, the number of reported quality values ​​for the current beam is predefined as M. If UE 10 is in STRP mode within the MTRP scenario, only one quality value for the current beam is valid, and the other is filler. In the STRP scenario, the number of reported quality values ​​for the current beam is predefined as N. Specifically, M = 2, N = 1.

[0244] Method 2: Semi-static Configuration. The number of quality values ​​reported for the current beam can be configured to 0, 1, or 2 by a higher-level parameter. This higher-level parameter is included in the CSI reporting configuration. If configured to 0, it means no quality value for the current beam is reported. If configured to 1, it means one quality value for the current beam is reported. If configured to 2, it means two quality values ​​for the current beam are reported. In the MTRP scenario, the number of quality values ​​reported for the current beam can be configured to 0, 1, or 2 by a higher-level parameter.

[0245] Method 3: Dynamically changes based on the indicated TCI status. The number of quality values ​​reported for the current beam dynamically changes based on the number of indicated TCI statuses (the number of TCI statuses contained in the indicated TCI status group). If the number of indicated TCI statuses is 2, the number of quality values ​​reported for the current beam is 2. If the number of indicated TCI statuses is 1, the number of quality values ​​reported for the current beam is 1. Alternatively, the number of quality values ​​reported for the current beam dynamically changes based on the available number of indicated TCI statuses. If the number of available indicated TCI statuses is 2 (i.e., the TCI selection area in the DCI is '10'), the number of quality values ​​reported for the current beam is 2. If the number of available indicated TCI statuses is 1 (i.e., the TCI selection area in the DCI is '00' or '01'), the number of quality values ​​reported for the current beam is 1.

[0246] The order of the current beam quality values ​​can be determined in one of the following ways:

[0247] Method 1: Predefined. The order of the current beam quality values ​​is the same as the order of the indicated TCI states, that is, the current beam in the current beam quality value #1 corresponds to the first indicated TCI state, and the current beam in the current beam quality value #2 corresponds to the second indicated TCI state.

[0248] Method 2: Semi-static configuration. The order of the current beam quality values ​​is configured by higher-level parameters. These higher-level parameters are included in the CSI reporting configuration.

[0249] Method 3: Dynamic Indication. In beam reporting, one bit is used to indicate the order of the current beam's quality values. The first bit (e.g., '0') indicates that the current beam in quality value #1 corresponds to the first indicated TCI state, and the current beam in quality value #2 corresponds to the second indicated TCI state; the second bit (e.g., '1') indicates that the current beam in quality value #1 corresponds to the second indicated TCI state, and the current beam in quality value #2 corresponds to the first indicated TCI state.

[0250] The current beam quality value can be quantified using one of the following methods:

[0251] Method 1: The quality value of one current beam is quantized in full mode, and the quality value of the other current beam is quantized in differential mode. The reference value for the differential mode is the quality value of the current beam quantized in full mode. The current beam quantized in full mode can be the current beam with the best quality value. In other words, the reported beam information includes at least one of the following: the quality value of the first current beam (quantized in full mode), or the difference between the quality value of the second current beam and the quality value of the first current beam (quantized in differential mode).

[0252] Method 2: The quality values ​​of both current beams are quantized differentially, with the reference value for the difference being a threshold or the best quality value of the new beam. In other words, the reported beam information includes the difference (differential quantization) between the reference values ​​of the quality values ​​of each current beam.

[0253] The method for quantifying the quality value of the new beam can be one of the following:

[0254] Method 1: The quality value of one new beam is quantized using full quantization, while the quality values ​​of the other new beams are quantized using differential quantization. The reference value for the differential quantization is the quality value of the new beam quantized using full quantization. The new beam quantized using full quantization can be the new beam with the best quality value. In other words, the reported beam information includes at least one of the following: the quality value of the first new beam (full quantization), or the difference between the quality value of the second new beam and the quality value of the first new beam (differential quantization).

[0255] Method 2: The quality values ​​of all new beams are quantized differentially, with the reference value for the difference being a threshold value or the quality value of the current beam. The quality value of the current beam can be the current beam quantized in full mode or the best current beam. In other words, the reported beam information includes the difference (differential quantization) between the quality value reference values ​​of each new beam.

[0256] The total mass value of the two beams is one of the following:

[0257] The sum of the quality values ​​of the two beams, for example or RSRP i and SINR i Representing the Reference Signal Received Power (RSRP) and Signal-to-Interference-plus-Noise Ratio (SINR) of beam i, respectively, RSRP j and SINR jThese represent the RSRP and SINR of beam j, respectively.

[0258] The average of the sum of the quality values ​​of the two beams, for example or in RSRP represents the total quality value of beams i and j. i and SINR i Represent the reference signal received power RSRP and signal-to-interference-plus-noise ratio (SINR) of beam i, respectively. j and SINR j These represent the RSRP and SINR of beam j, respectively.

[0259] The ratio of the total useful signal of the two beams to the sum of the total interference and noise, for example... in S represents the total mass value of beams i and j. i and I i Let N represent the useful signal and interference of beam i, respectively, and let N represent noise.

[0260] Specifically, in the embodiments of the present invention, TCI state refers to downlink TCI state or joint TCI state, the number of TCI states refers to the number of downlink TCI states or joint TCI states, and the number of TCI states included in a TCI state group refers to the number of downlink TCI states or joint TCI states included in the TCI state group.

[0261] Specifically, in this embodiment of the invention, beam reporting can be CSI reporting. The number of beam reports contained in the beam information or PUSCH is the same as the number of CSI reports contained therein.

[0262] Specifically, the beam in this embodiment of the invention may correspond to a TCI state or a reference signal, or the beam may be a reference signal in a TCI state or a reference signal in a resource set. The current beam may be a reference signal of an indicated TCI state or a TCI state contained in an indicated TCI state group. The active beam may be a reference signal of a Qth active TCI state or a TCI state contained in a Qth active TCI state group. The new beam may be a reference signal or a reference signal in a resource set other than the current beam or the active beam. The index of the new beam may be an index of a reference signal (e.g., CRI or SSBRI). Furthermore, the beam may be a reference signal with QCL information of type D in a TCI state.

[0263] Specifically, the activation beam can be the Q-th best activation beam, and there are several possibilities: a) One of the beams of the Q-th best activation beam is the Q-th best activated TCI state of one TRP, and the other beam is another TCI state in the same activated TCI state group as the Q-th best activated TCI state of one TRP. b) One of the Q-th best activation beams is both the Q-th best activated TCI state of one TRP and the Q-th best activated TCI state of another TRP. c) The Q-th best activation beam is the Q-th best activated TCI state among all the activated TCI states of two TRPs.

[0264] In the first and second cases, the value of Q ranges from 1 to 8, while in the third case, the value of Q ranges from 1 to 16.

[0265] In this embodiment of the invention, the beam group is also a resource group. The current beam group refers to the resource group containing the reference signal of the current beam, and the new beam group refers to the resource group containing the reference signal of the new beam. Beams or resources in a beam group or resource group can be received by the UE simultaneously.

[0266] According to an example embodiment, a chip is provided, the chip including: a processor for calling and running a computer program from a memory, causing a device on which the chip is installed to perform the method according to any one of the above embodiments, examples, or example embodiments.

[0267] According to an exemplary embodiment, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform a method according to any one of the above embodiments, examples, or exemplary embodiments.

[0268] According to an example embodiment, a computer program product is provided, including a computer program / instructions that, when executed by a processor (e.g., by the processor or an apparatus, device, computer, or machine including the processor), implement the method according to any one of the above embodiments, examples, or example embodiments.

[0269] Embodiments of the present invention are combinations of technologies / processes that can be employed in 3GPP specifications to create a final product.

[0270] Compared to existing technologies, embodiments of the present invention provide an event-triggered beam management method, comprising at least one of the following operations performed in a user equipment: receiving an event indication sent by a first base station, wherein the event indication is used to inform the user equipment of information regarding whether the beam used as a comparison reference is the current beam or a specific active beam; determining a trigger event based on a first beam measurement reference signal sent by the first base station and the information of the comparison reference, and / or a second beam measurement reference signal sent by a second base station and the information of the comparison reference; or reporting beam information regarding the trigger event to the first base station, enabling the network side to schedule the user equipment to perform the indicated beam management operation; and comprising at least one of the following operations performed in the base station: sending an event indication to the user equipment, enabling the user equipment to decide whether to detect the trigger event, wherein the event indication is used to inform the user equipment of information regarding whether the beam used as a comparison reference is the current beam or a specific active beam; or receiving beam information of the trigger event from the user equipment, enabling the network side to schedule the user equipment to perform the indicated beam management operation. Embodiments of the present invention reduce beam reporting overhead or beam update latency through the above-described event-driven beam management.

[0271] Although the invention has been described in conjunction with what are considered to be the most practical and preferred embodiments, it should be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various arrangements made without departing from the broadest interpretation of the appended claims.

Claims

1. A beam management method, the method being performed in a user equipment, comprising: Receive event information, wherein the event information includes at least one of the following: The quality value of a current beam is less than a threshold value; At least one new beam has a quality value greater than the quality value of a current beam plus a threshold value; The quality value of at least one new beam is greater than the quality value of an active beam plus a threshold value; At least one current beam has a quality value less than a threshold. The combined mass of the two current beams is less than the threshold. The absolute value of the difference between the quality values ​​of the two current beams is greater than the threshold value; The quality value of one of the current beams is greater than the total quality value of the two current beams plus a threshold value; The quality value of at least one new beam is greater than the quality value of at least one current beam plus a threshold value; At least one new beam has a quality value greater than the first threshold and greater than the threshold value of the best current beam plus the second threshold value; The quality value of at least one new beam is greater than the total quality value of the two current beams plus a threshold value; The total quality of at least two new beams is greater than the total quality of two current beams plus a threshold value; The total quality of at least two new beams is greater than the quality of one current beam plus a threshold value; The total quality value of at least one new beam and the current beam is greater than the quality value of the current beam plus a threshold value; At least one current beam has a quality value greater than a threshold value; At least one new beam has a quality value greater than a threshold value; The total mass of at least two new beams is greater than the threshold. The quality value of at least one current beam in the current beam group is less than the threshold value; The total mass of the two current beams in the current beam group is less than the threshold value; The absolute value of the difference between the quality values ​​of the two current beams in the current beam group is greater than the threshold value; The quality value of at least one current beam in the current beam group is greater than the total quality value of the two current beams plus a threshold value; The quality value of at least one new beam in at least one new beam group is greater than the quality value of at least one current beam in the current beam group plus a threshold value; The quality value of at least one new beam in at least one new beam group is greater than a first threshold value, and is greater than the quality value of the best current beam in the current beam group plus the threshold value; The quality value of at least one new beam in at least one new beam group is greater than the total quality value of the two current beams in the current beam group plus a threshold value; The total mass value of the two new beams in at least one new beam group is greater than the total mass value of the two current beams in the current beam group plus a threshold value; The total quality value of the two new beams in at least one new beam group is greater than the quality value of one current beam in the current beam group plus a threshold value; The quality value of at least one current beam in the current beam group is greater than the threshold value; At least one new beam in at least one new beam group has a quality value greater than a threshold value; or The total mass value of the two new beams in at least one new beam group is greater than the threshold value.

2. The method of claim 1, wherein the triggering event is that the quality value of at least one current beam is less than a threshold value, and the reported information further includes at least one of the following: an index of a new beam; the quality value of a new beam; the quality value of a current beam; an indication of the order of the quality values ​​of the current beams; or an indication of a better or worse current beam.

3. The method according to claim 1, wherein the triggering event is that the total mass value of the two current beams is less than a threshold value, and the reported information further includes at least one of the following: the index of the new beam, the total mass value of the new beam, and the total mass value of the current beam.

4. The method according to claim 1, wherein the triggering event is the absolute value of the difference between the quality values ​​of the two current beams being greater than a threshold value, and the reported information further includes at least one of the following: the index of the new beam, the absolute value of the difference between the quality values ​​of the new beam, an indication that the quality value of the new beam is better or worse, the absolute value of the difference between the quality values ​​of the current beam, or an indication that the current beam is better or worse.

5. The method according to claim 1, wherein the triggering event is that the quality value of at least one current beam is greater than the total quality value of two current beams plus a threshold value, and the reported information further includes at least one of the following: the index of the new beam, the quality value of the new beam, or the total quality value of the current beam.

6. The method of claim 1, wherein the triggering event is that the quality value of at least one new beam is greater than the quality value of at least one current beam plus a threshold value, and the reported information further includes at least one of the following: the index of the new beam, the quality value of the new beam, the quality value of the current beam, an indication of the order of the quality values ​​of the current beams, or an indication of a better or worse current beam.

7. The method of claim 1, wherein the triggering event is that the quality value of at least one new beam is greater than a first threshold and greater than the quality value of the best current beam plus a second threshold, and the reported information further includes at least one of the following: the index of the new beam, the quality value of the new beam, or the quality value of the current beam.

8. The method according to claim 1, wherein the triggering event is that the quality value of at least one new beam is greater than the total quality value of the two current beams plus a threshold value, and the reported information further includes at least one of the following: the index of the new beam, the quality value of the new beam, or the total quality value of the current beams.

9. The method according to claim 1, wherein the triggering event is that the total mass value of at least two new beams is greater than the total mass value of two current beams plus a threshold value, and the reported information further includes at least one of the following: the index of the new beam, the total mass value of the new beam, or the total mass value of the current beam.

10. The method of claim 1, wherein the triggering event is that the total quality value of at least two new beams is greater than the quality value of a current beam plus a threshold value, and the reported information further includes at least one of the following: the index of the new beam, the total quality value of the new beam, the quality value of the current beam, an indication of the order of the quality values ​​of the current beam, or an indication of a better or worse current beam.

11. The method according to claim 1, wherein the triggering event is, and the reported information further includes at least one of the following: the index of the new beam, the total quality value of the new beam and the current beam, or the quality value of the current beam.

12. A user equipment comprising: A processor and a memory for storing computer programs, the processor for calling and running the computer programs stored in the memory to perform the method as described in any one of claims 1-11.

13. A beam management method, the method being performed in a user equipment, comprising: Receiving beam indication, The content of the indication includes at least one of the following: information related to the sending and receiving point, information related to the transmission configuration indication status, and information related to the cell. The indication method includes at least one of the following: a single-level indication method; or a two-level indication method.

14. The method of claim 13, wherein the information related to the transmit / receive point includes: a transmit / receive point TRP identifier ID, or a control resource set index parameter CORESETPOOLINDEX used to indicate the TRP status.

15. The method of claim 13, wherein the information related to the transmission configuration indication state includes: the sequence number of the transmission configuration indication TCI state in the indicated TCI state group, the sequence number of the TCI state group in the list of active TCI state groups, the sequence number of the TCI state in the active TCI state group, the sequence number of the TCI state in the list of active TCI states, or the TCI state identifier ID.

16. The method of claim 13, wherein the cell-related information includes: the cell's serial number in the cell list, the cell ID, and the bandwidth portion identifier (BWP ID).

17. The method of claim 13, wherein the single-level indication method comprises: The beam indication is configured in the higher-layer parameters of the channel state information reporting configuration.

18. The method of claim 13, wherein the single-level indication method comprises: The beam indication is configured in the media access control element associated with the channel state information reporting configuration.

19. The method of claim 13, wherein the two-level indication method comprises: The beam indication is configured in the higher-layer parameters of the channel state information reporting configuration.

20. The method of claim 13, wherein the two-level indication method comprises: The beam indication is configured in the higher-layer parameters of the channel state information reporting configuration and the media access control element associated with the channel state information reporting configuration.

21. A user equipment comprising: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 13-20.

22. A method for beam management, the method being performed in a user equipment, comprising: Report beam information, The information about the beams includes at least one of the following: the quality value of the current beam; the quality value of another beam in the current beam group; an indication that the quality value of the other beam is better or worse than the current beam; the quality value of the active beam; the quality value of another beam in the active beam group; an indication that the quality value of the other beam is better or worse than the active beam; an indication that the quality value of the other beam is better or worse than the best new beam; an indication of the order of the quality values ​​of the current beams; and the absolute value of the difference in quality values ​​of the current beams. The total quality value of the current beam; the index of the new beam; the quality value of the new beam; or the total quality value of the new beam.

23. The method of claim 22, wherein the beam information is carried by a physical uplink shared channel, and the dynamically authorized physical uplink shared channel configuration or the configuration authorized physical uplink shared channel configuration includes information on the number of beams reported in the physical uplink shared channel.

24. The method of claim 22, wherein the beam information is carried by a physical uplink shared channel, and the downlink control information or media access control element includes information on the number of beams reported in the physical uplink shared channel.

25. The method of claim 22, wherein the beam information is carried by a physical uplink shared channel, and the number of beams reported in the physical uplink shared channel is associated with whether there is a multi-transmit / receiver configuration.

26. The method of claim 22, wherein the beam information is carried by a physical uplink shared channel, and the number of beams reported in the physical uplink shared channel is determined based on the number of transmission configuration indication states included in the indicated transmission configuration indication state group, the number of available transmission configuration indication states included in the indicated transmission configuration indication state group, or the number of transmission configuration indication states included in the active transmission configuration indication state group.

27. The method of claim 26, wherein the number of reported current beam quality values ​​in the beam information is a predefined number.

28. The method of claim 26, wherein the higher-layer parameters in the beam information include the number of reported quality values ​​for the current beam.

29. The method of claim 26, wherein the number of reported current beam quality values ​​in the beam information corresponds to the number of indicated transmission configuration indication states.

30. The method of claim 26, wherein the order in which the quality values ​​of the current beam are reported in the beam information is the same as the order in which the indicated transmission configuration indication states are displayed.

31. The method of claim 26, wherein the higher-layer parameters in the beam information include the order in which the quality values ​​of the current beam are reported.

32. The method of claim 26, wherein one bit in the beam information indicates the order in which the quality values ​​of the current beam are reported.

33. The method of claim 26, wherein the information of the beam includes at least one of the following: a quality value of a first current beam, or a difference between a second current beam and the quality value of the first current beam.

34. The method of claim 26, wherein the information of the beam includes at least one of the following: the difference between each current beam gap reference value, or the reference value is a threshold value or the quality value of the best new beam.

35. The method of claim 26, wherein the information of the beam includes at least one of the following: a quality value of a first new beam, or a difference between a second new beam and the quality value of the first new beam.

36. The method of claim 26, wherein the information of the beam includes at least one of the following: the difference between each new beam gap reference value, or the reference value is a threshold value or the quality value of the current beam.

37. A user equipment comprising: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 21 to 36.

38. A beam management method, the method being performed in a base station, comprising: Send information about the event, wherein the information about the event includes at least one of the following: The quality value of a current beam is less than a threshold value; At least one new beam has a quality value greater than the quality value of a current beam plus a threshold value; The quality value of at least one new beam is greater than the quality value of an active beam plus a threshold value; At least one current beam has a quality value less than a threshold. The combined mass of the two current beams is less than the threshold. The absolute value of the difference between the quality values ​​of the two current beams is greater than the threshold value; The quality value of one of the current beams is greater than the total quality value of the two current beams plus a threshold value; The quality value of at least one new beam is greater than the quality value of at least one current beam plus a threshold value; At least one new beam has a quality value greater than the first threshold and greater than the threshold value of the best current beam plus the second threshold value; The quality value of at least one new beam is greater than the total quality value of the two current beams plus a threshold value; The total quality of at least two new beams is greater than the total quality of two current beams plus a threshold value; The total quality of at least two new beams is greater than the quality of one current beam plus a threshold value; The total quality value of at least one new beam and the current beam is greater than the quality value of the current beam plus a threshold value; At least one current beam has a quality value greater than a threshold value; At least one new beam has a quality value greater than a threshold value; The total mass of at least two new beams is greater than the threshold. The quality value of at least one current beam in the current beam group is less than the threshold value; The total mass of the two current beams in the current beam group is less than the threshold value; The absolute value of the difference between the quality values ​​of the two current beams in the current beam group is greater than the threshold value; The quality value of at least one current beam in the current beam group is greater than the total quality value of the two current beams plus a threshold value; The quality value of at least one new beam in at least one new beam group is greater than the quality value of at least one current beam in the current beam group plus a threshold value; The quality value of at least one new beam in at least one new beam group is greater than a first threshold value, and is greater than the quality value of the best current beam in the current beam group plus the threshold value; The quality value of at least one new beam in at least one new beam group is greater than the total quality value of the two current beams in the current beam group plus a threshold value; The total mass value of the two new beams in at least one new beam group is greater than the total mass value of the two current beams in the current beam group plus a threshold value; The total quality value of the two new beams in at least one new beam group is greater than the quality value of one current beam in the current beam group plus a threshold value; The quality value of at least one current beam in the current beam group is greater than the threshold value; At least one new beam in at least one new beam group has a quality value greater than a threshold value; or The total mass value of the two new beams in at least one new beam group is greater than the threshold value.

39. A base station, comprising: A processor and a memory for storing computer programs, the processor for calling and running the computer programs stored in the memory to perform the method as described in claim 38.

40. A method for beam management, the method being performed in a base station, comprising: Instructions for transmitting beams, The beam indication includes at least one of the following: information related to the transmit / receive point, information related to the transmission configuration indication status, and information related to the cell, and the indication method is one of the following: a single-level indication method; or a two-level indication method.

41. The method of claim 40, wherein the information related to the sending and receiving points includes: TRP ID, or control resource set index parameter CORESETPOOLINDEX.

42. The method of claim 40, wherein the information related to the transmission configuration indication state includes: the sequence number of the TCI state in the indicated TCI state group, the sequence number of the TCI state group in the list of active TCI state groups, the sequence number of the TCI state in the active TCI state group, the sequence number of the TCI state in the list of active TCI states, or the TCI state ID.

43. The method of claim 40, wherein the cell-related information includes: the cell's serial number in the cell list, the cell ID, and the bandwidth portion identifier (BWP ID).

44. The method of claim 40, wherein the beam indication includes higher-layer parameters corresponding to a first-type event or a second-type event, and / or the higher-layer parameters are used to inform the user equipment whether to use the current beam as a comparison reference.

45. The method of claim 40, wherein the beam indication includes a first higher-layer parameter and / or a second higher-layer parameter corresponding to a third type of event, the first higher-layer parameter being used to inform the user equipment of an active state list, the active state list including a plurality of active beams, and / or the second higher-layer parameter being used to inform the user equipment of the sequence number of a specific active beam in the active state list.

46. ​​The method of claim 40, wherein the beam indication includes higher-layer parameters corresponding to a third type of event and / or a media access control element, the parameters being used to inform the user equipment of an active state list, the active state list including a plurality of active beams, and / or the media access control element carrying a sequence number for informing the user equipment of a specific active beam in the active state list.

47. The method of claim 40, wherein the beam indication includes higher-layer parameters corresponding to a first-type event or a second-type event, and / or the higher-layer parameters are used to inform the user equipment of the sequence number of the transmission configuration indication state in the indicated transmission configuration indication state group.

48. The method of claim 40, wherein the beam indication includes a media access control element corresponding to a first type event or a second type event, and / or the media access control element carries an information for informing the user equipment about the sequence number of the transmission configuration indication state in the indicated transmission configuration indication state group.

49. The method of claim 40, wherein the beam indication includes a first higher-layer parameter and / or a second higher-layer parameter corresponding to a third type event, the first higher-layer parameter being used to inform the user equipment of the sequence number of the transmission configuration indication state group in the list of active transmission configuration indication state groups, and the second higher-layer parameter being used to inform the user equipment of the sequence number of the transmission configuration indication state in the transmission configuration indication state group.

50. The method of claim 40, wherein the beam indication includes a media access control element corresponding to a third type of event, and / or the media access control element carries an information for informing the user equipment about the sequence number of the transmission configuration indication state group in a list of active transmission configuration indication state groups, and / or the sequence number of the transmission configuration indication state in the transmission configuration indication state group.

51. The method of claim 40, wherein the beam indication includes higher-layer parameters corresponding to a third type of event and / or a media access control element, the higher-layer parameters being used to inform the user equipment of the sequence number of the transmission configuration indication state group in the list of active transmission configuration indication state groups, and / or the media access control element carrying information to inform the user equipment of the sequence number of the transmission configuration indication state in the transmission configuration indication state group.

52. The method of claim 40, wherein the beam indication includes higher-layer parameters corresponding to a third type of event and / or a media access control element, the media access control element carrying information about the sequence number of the transmission configuration indication state group in the list of active transmission configuration indication state groups, and / or the higher-layer parameters being used to inform the user equipment about the sequence number of the transmission configuration indication state in the transmission configuration indication state group.

53. The method of claim 40, wherein the single-level indication method comprises: The beam indication is configured in the higher-layer parameters of the channel state information reporting configuration.

54. The method of claim 40, wherein the single-level indication method comprises: The beam indication is configured in the media access control element associated with the channel state information reporting configuration.

55. The method of claim 40, wherein the two-level indication method comprises: The beam indication is configured in the higher-layer parameters of the channel state information reporting configuration.

56. The method of claim 40, wherein the two-level indication method comprises: The beam indication is configured in the higher-layer parameters of the channel state information reporting configuration and the media access control element associated with the channel state information reporting configuration.

57. A base station, comprising: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 40 to 56.

58. A beam management method, the method being performed in a base station, comprising: Receive beam information, The information about the beams includes at least one of the following: the quality value of the current beam; the quality value of another beam in the current beam group; an indication that the quality value of the other beam is better or worse than the current beam; the quality value of the active beam; the quality value of another beam in the active beam group; an indication that the quality value of the other beam is better or worse than the active beam; an indication that the quality value of the other beam is better or worse than the best new beam; an indication of the order of the quality values ​​of the current beams; and the absolute value of the difference in quality values ​​of the current beams. The total quality value of the current beam; the index of the new beam; the quality value of the new beam; or the total quality value of the new beam.

59. A base station, comprising: A processor and a memory for storing computer programs, the processor for calling and running the computer programs stored in the memory to perform the method as described in claim 58.

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