Methods of beam reporting, receiving beam report, and relevant devices
UE-initiated beam reporting in a multi-TRP system addresses the inefficiencies of existing NR/5G beam measurement and reporting by allowing the UE to report power information only when specific conditions are met, thereby reducing overhead and improving communication performance and reliability.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-08-19
- Publication Date
- 2026-04-09
AI Technical Summary
Existing NR/5G systems face issues with beam measurement and reporting, where the gNB may not accurately know beam quality, leading to undesirable reporting overhead or delayed channel information acquisition, affecting uplink transmission efficiency and reliability.
Implement UE-initiated beam reporting in a multi-TRP system by configuring terminal devices with multiple sets of physical reference signal resources and TCI states, allowing the UE to detect and report power information only when specific event conditions are met, reducing reporting overhead and enabling timely channel information acquisition.
This approach reduces reporting overhead and enhances communication performance by allowing the UE to initiate beam reporting only when necessary, ensuring timely and reliable channel information acquisition.
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Figure CN2025115608_09042026_PF_FP_ABST
Abstract
Description
METHODS OF BEAM REPORTING, RECEIVING BEAM REPORT, AND RELEVANT DEVICES
[0001] BACKGROUND OF DISCLOSURE
[0002] 1. Field of the Disclosure
[0003] The present application relates to wireless communication technologies, and more particularly, to a method of beam reporting, a method of receiving beam report, and relevant devices.2. Description of the Related Art
[0004] NR / 5G system supports FR2 (frequency range 2) operation. The NR system in FR2 is generally a multi-beam-based system, where the gNB has multiple downlink Tx beams that are available for downlink transmission and the UE could have multiple Rx beam available for downlink transmission reception. For the uplink transmission, the UE might have multiple Tx beam available for transmission and the gNB has multiple uplink Rx beam that are available for uplink reception. To support proper communication, the gNB and the UE finds the best pair of gNB Tx beam and UE Rx beam. The NR introduces beam measurement and reporting in CSI framework to support the selection of best Tx beam and Rx beam. The NR also supports the functions of beam indication for downlink reception and uplink transmission. The gNB can indicate the information of Tx beam of PDCCH and PDSCH to the UE to assist the downlink reception at the UE side. The gNB can also indicate the information of Tx beam of PUSCH, PUCCH and SRS to the UE to indicate the UE about how to transmit the PUSCH, PUCCH and SRS.
[0005] The NR / 5G systems implement the function of beam indication through the signaling of TCI states. The UE can be first provided with a list of joint TCI states or a list of DL TCI states and a list of UL TCI states. Each joint TCI state can provide the configuration information of QCL typeD for downlink reception (where the QCL typeD provides the spatial Rx parameter for downlink reception) and reference information of UL Tx spatial filter for uplink transmission. Each joint TCI state can be associated with a set of uplink power control parameters, including P0, alpha, index of closed loop power control and the pathloss RS. Each DL TCI state can provide the configuration information of QCL typeD for downlink reception. Each UL TCI state can provide the reference information of UL Tx spatial filter for uplink transmission and each UL TCI state can also be associated with a set of uplink power control parameters, including P0, alpha, index of closed loop and pathloss RS.
[0006] The gNB can indicate on joint TCI state or a pair of DL TCI states and UL TCI states to the UE through a DCI signaling. When the UE receives the DCI signaling for TCI state indication, the UE feedbacks one ACK to the gNB. Then the indicated TCI state (s) should be applied starting from the first slot that is at least beamAppTime symbols after the last symbols of the PUCCH or PUSCH that carries the ACK. From the information of QCL TypeD in the indicated TCI state, the UE would derive the Rx beam for receiving the PDCCH and PDSCH. From the information of UL Tx spatial filter in the indicated TCI state, the UE would derive the Tx beam for transmitting the PUSCH, PUCCH and / or SRS. From the indicated TCI state, the UE would derive the uplink power control parameters and pathloss RS and then calculate the uplink transmit power for the PUSCH, PUCCH and / or SRS transmission.
[0007] To support the system to choose proper TCI states, the NR specification also supports the functions of beam measurement and reporting. The system can configure the UE to measure a set of reference signals, such as CSI-RS resources and / or SS / PBCH blocks and the UE can be requested to report the measurement results to the system. The reported measurement result can include the indicator of selected CSI-RS resource or SS / PBCH and the corresponding L1-RSRP or L1-SINR measurement.
[0008] One drawback of the existing method of beam measurement and reporting is that the gNB controls the beam measurement and reporting but the gNB might not know the beam quality very well. That might cause two consequences: firstly, if the system configures very frequent beam reporting, the reporting may create an undesirable overhead, and thus, the uplink transmission efficiency is impaired. On the other hand, if the system configures less frequency beam reporting, the reporting overhead is reduced but the system cannot obtain the channel information in time.SUMMARY
[0009] An object of the present application is to propose methods of beam reporting, receiving beam report and relevant devices, which can solve issues in the relevant arts, implement UE-initiated beam reporting (e.g., in a muti-TRP system) , reduce reporting overhead, enable channel information acquisition in time, reduce latency, provide a good communication performance, and / or provide high reliability.
[0010] In a first aspect, some embodiments of the present application provide a method of beam reporting, performed by a terminal device, including being configured by a network device with a first set of physical reference signal (RS) resources and a second set of physical RS resources for beam measurement and being indicated by the network device with a first transmission configuration indicator (TCI) state and a second TCI state in a multiple transmission reception point (multi-TRP) scenario; determining a first physical RS resource according to the indicated first TCI state and determining a second physical RS resource according to the indicated second TCI state; detecting whether a first event condition for the indicated first TCI state occurs by measuring power of the first physical RS resource and the physical RS resources in the first set, and reporting power information of one or more physical RS resources in the first set to the network device when the first event condition is satisfied, wherein the power of each of the one or more physical RS resources in the first set is above the power of the first physical RS resource; and detecting whether a second event condition for the indicated second TCI state occurs by measuring power of the second physical RS resource and the physical RS resources in the second set, and reporting power information of one or more physical RS resources in the second set to the network device when the second event condition is satisfied, wherein the power of each of the one or more physical RS resources in the second set is above the power of the second physical RS resource.
[0011] In a second aspect, some embodiments of the present application provide a method of receiving beam report, performed by a network device, including configuring a terminal device with a first set of physical reference signal (RS) resources and a second set of physical RS resources for beam measurement, and in a multiple transmission reception point (multi-TRP) scenario, indicating to the terminal device with a first transmission configuration indicator (TCI) state for the terminal device to determine a first physical RS resource according to the indicated first TCI state and indicating to the terminal device with a second TCI state for the terminal device to determine a second physical RS resource according to the indicated second TCI state; receiving power information of one or more physical RS resources in the first set reported from the terminal device when a first event condition for the indicated first TCI state is satisfied, wherein whether the first event condition occurs is detected by the terminal device by measuring power of the first physical RS resource and the physical RS resources in the first set, and the power of each of the reported one or more physical RS resources in the first set is above the power of the first physical RS resource; and receiving power information of one or more physical RS resources in the second set reported from the terminal device when a second event condition for the indicated second TCI state is satisfied, wherein whether the second event condition occurs is detected by the terminal device by measuring power of the second physical RS resource and the physical RS resources in the second set, and the power of each of the reported one or more physical RS resources in the second set is above the power of the second physical RS resource.
[0012] In a third aspect, some embodiments of the present application provide a terminal device, including a memory; and a processor coupled to the memory, wherein the processor is configured to call and run program instructions stored in the memory, to execute the method described in the first aspect.
[0013] In a fourth aspect, some embodiments of the present application provide a network device, including a memory; and a processor coupled to the memory, wherein the processor is configured to call and run program instructions stored in the memory, to execute the method described in the second aspect.
[0014] In a fifth aspect, some embodiments of the present application provide a terminal device, including a first configuration and indication module, configured to be configured by a network device with a first set of physical reference signal (RS) resources and a second set of physical RS resources for beam measurement and be indicated by the network device with a first transmission configuration indicator (TCI) state and a second TCI state in a multiple transmission reception point (multi-TRP) scenario; a determination module, configured to determine a first physical RS resource according to the indicated first TCI state and determine a second physical RS resource according to the indicated second TCI state; a first detection and reporting module, configured to detect whether a first event condition for the indicated first TCI state occurs by measuring power of the first physical RS resource and the physical RS resources in the first set, and report power information of one or more physical RS resources in the first set to the network device when the first event condition is satisfied, wherein the power of each of the one or more physical RS resources in the first set is above the power of the first physical RS resource; and a second detection and reporting module, configured to detect whether a second event condition for the indicated second TCI state occurs by measuring power of the second physical RS resource and the physical RS resources in the second set, and report power information of one or more physical RS resources in the second set to the network device when the second event condition is satisfied, wherein the power of each of the one or more physical RS resources in the second set is above the power of the second physical RS resource.
[0015] In a sixth aspect, some embodiments of the present application provide a network device, including a second configuration and indication module, configured to configure a terminal device with a first set of physical reference signal (RS) resources and a second set of physical RS resources for beam measurement, and in a multiple transmission reception point (multi-TRP) scenario, indicate to the terminal device with a first transmission configuration indicator (TCI) state for the terminal device to determine a first physical RS resource according to the indicated first TCI state and indicate to the terminal device with a second TCI state for the terminal device to determine a second physical RS resource according to the indicated second TCI state; a receiving module, configured to receive power information of one or more physical RS resources in the first set reported from the terminal device when a first event condition for the indicated first TCI state is satisfied, wherein whether the first event condition occurs is detected by the terminal device by measuring power of the first physical RS resource and the physical RS resources in the first set, and the power of each of the reported one or more physical RS resources in the first set is above the power of the first physical RS resource; and the receiving module, further configured to receive power information of one or more physical RS resources in the second set reported from the terminal device when a second event condition for the indicated second TCI state is satisfied, wherein whether the second event condition occurs is detected by the terminal device by measuring power of the second physical RS resource and the physical RS resources in the second set, and the power of each of the reported one or more physical RS resources in the second set is above the power of the second physical RS resource.
[0016] In a seventh aspect, some embodiments of the present application provide a non-transitory machine-readable storage medium has stored thereon instructions that, when executed by a computer, cause the computer to execute any of the above methods.
[0017] In an eighth aspect, some embodiments of the present application provide a chip includes a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute any of the above methods.
[0018] In a ninth aspect, some embodiments of the present application provide a computer readable storage medium, in which a computer program is stored, causing a computer to execute any of the above methods.
[0019] In a tenth aspect, some embodiments of the present application provide a computer program product includes a computer program, and the computer program causes a computer to execute any of the above methods.
[0020] In an eleventh aspect, some embodiments of the present application provide a computer program that causes a computer to execute any of the above methods.BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to illustrate the embodiments of the present application or related art more clearly, the following figures will be described in the embodiments are briefly introduced. It is obvious that the drawings are merely some embodiments of the present application, a person having ordinary skill in this field can obtain other figures according to these figures without paying the premise.
[0022] FIG. 1 is a block diagram of a terminal device and a network device in a wireless communication system according to an embodiment of the present application.
[0023] FIG. 2 is a flowchart of a method of beam reporting by a terminal device according to an embodiment of the present application.
[0024] FIG. 3 is a flowchart of a method of receiving beam report by a network device according to an embodiment of the present application.
[0025] FIG. 4 is a block diagram of a terminal device according to an embodiment of the present application.
[0026] FIG. 5 is a block diagram of a network device according to an embodiment of the present application.
[0027] FIG. 6 is a block diagram of a system for wireless communication according to an embodiment of the present application.DETAILED DESCRIPTION OF EMBODIMENTS
[0028] Embodiments of the present application are described in detail with the technical matters, structural features, achieved objects, and effects with reference to the accompanying drawings as follows. Specifically, the terminologies in the embodiments of the present application are merely for describing the purpose of the certain embodiment, but not to limit the disclosure.
[0029] In this document, the symbol " / " should be interpreted to indicate "and / or. " A combination such as “at least one of A, B, or C, ” “one or more of A, B, or C, ” “at least one of A, B, and C, ” “one or more of A, B, and C, ” or “A, B, and / or C” may be A only, B only, C only, A and B, A and C, B and C, or A and B and C, where any combination may contain one or more members of A, B, or C.
[0030] The following table includes some abbreviations or explanations that may be used in some embodiments of the present application:
[0031] The present application provides solutions for UE-initiated beam reporting for multiple transmission reception point (multi-TRP) system, which includes the configuration, the method of event detection and the method of beam reporting.
[0032] FIG. 1 illustrates that, in some embodiments, one or more terminal device (e.g., user equipments (UEs) ) 10 and one or more network devices (e.g., base stations or gNBs) 20 in a wireless communication system 30 according to an embodiment of the present application are provided. The wireless communication system 30 includes the one or more terminal devices 10 and one or more network devices 20. The one or more terminal devices 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12 and the transceiver 13. The one or more network devices 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 22 and the transceiver 23. The processor 11 or 21 may be configured to implement proposed functions, procedures and / or methods described in this description. Layers of radio interface protocol may be implemented in the processor 11 or 21. The memory 12 or 22 is operatively coupled with the processor 11 or 21 and stores a variety of information to operate the processor 11 or 21. The transceiver 13 or 23 is operatively coupled with the processor 11 or 21, and the transceiver 13 or 23 transmits and / or receives a radio signal. When the wireless communication system 30 complies with the New Radio (NR) standard of the 3rd Generation Partnership Project (3GPP) , the next generation core network is a backend serving network system and may include an Access and Mobility Management Function (AMF) , User Plane Function (UPF) , and a Session Management Function (SMF) . In one aspect, the terminal device 10 can include almost any consumer electronic device or appliance that can connect to a radio access network and a core network for the releases of 3GPP and further, such as, but not limited to NR networks.
[0033] The processor 11 or 21 may include application-specific integrated circuit (ASIC) , other chipset, logic circuit and / or data processing device. The memory 12 or 22 may include read-only memory (ROM) , random access memory (RAM) , flash memory, memory card, storage medium and / or other storage device. The transceiver 13 or 23 may include baseband circuitry to process radio frequency signals. When the embodiments are implemented in software, the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The modules can be stored in the memory 12 or 22 and executed by the processor 11 or 21. The memory 12 or 22 can be implemented within the processor 11 or 21 or external to the processor 11 or 21 in which case those can be communicatively coupled to the processor 11 or 21 via various means as is known in the art.
[0034] In some embodiments, the processor 11 of the terminal device 10 is utilized to be configured by a network device with a first set of physical reference signal (RS) resources and a second set of physical RS resources for beam measurement and be indicated by the network device with a first transmission configuration indicator (TCI) state and a second TCI state in a multiple transmission reception point (multi-TRP) scenario, determine a first physical RS resource according to the indicated first TCI state and determine a second physical RS resource according to the indicated second TCI state, detect whether a first event condition for the indicated first TCI state occurs by measuring power of the first physical RS resource and the physical RS resources in the first set, and report power information of one or more physical RS resources in the first set to the network device when the first event condition is satisfied, wherein the power of each of the one or more physical RS resources in the first set is above the power of the first physical RS resource, detect whether a second event condition for the indicated second TCI state occurs by measuring power of the second physical RS resource and the physical RS resources in the second set, and report power information of one or more physical RS resources in the second set to the network device when the second event condition is satisfied, wherein the power of each of the one or more physical RS resources in the second set is above the power of the second physical RS resource. This can implement UE-initiated beam reporting in a muti-TRP system, reduce reporting overhead, and enable channel information acquisition in time.
[0035] In some embodiments, the processor 21 of the network device 20 is utilized to configure a terminal device with a first set of physical reference signal (RS) resources and a second set of physical RS resources for beam measurement, and in a multiple transmission reception point (multi-TRP) scenario, indicate to the terminal device with a first transmission configuration indicator (TCI) state for the terminal device to determine a first physical RS resource according to the indicated first TCI state and indicate to the terminal device with a second TCI state for the terminal device to determine a second physical RS resource according to the indicated second TCI state, receive power information of one or more physical RS resources in the first set reported from the terminal device when a first event condition for the indicated first TCI state is satisfied, wherein whether the first event condition occurs is detected by the terminal device by measuring power of the first physical RS resource and the physical RS resources in the first set, and the power of each of the reported one or more physical RS resources in the first set is above the power of the first physical RS resource, and receive power information of one or more physical RS resources in the second set reported from the terminal device when a second event condition for the indicated second TCI state is satisfied, wherein whether the second event condition occurs is detected by the terminal device by measuring power of the second physical RS resource and the physical RS resources in the second set, and the power of each of the reported one or more physical RS resources in the second set is above the power of the second physical RS resource. This can implement UE-initiated beam reporting in a muti-TRP system, reduce reporting overhead, and enable channel information acquisition in time.
[0036] FIG. 2 illustrates a method of beam reporting 100 by a terminal device according to an embodiment of the present application. In some embodiments, the method 100 includes the following.
[0037] In Block 102, the terminal device (e.g., a user equipment (UE) ) is configured by a network device (e.g., a base station or gNB) with a first set of physical reference signal (RS) resources and a second set of physical RS resources for beam measurement. For example, the physical RS resources in the first set and / or the second set may include channel state information reference signal (CSI-RS) resources or synchronization signal (SS) / physical broadcast channel (PBCH) block (SSB) . In an example, the first set of physical RS resources and the second set of physical RS resources may be configured in one resource setting (e.g., by an RRC parameter CSI-ReportConfig) .
[0038] In a multiple transmission reception point (multi-TRP) scenario, the terminal device can be indicated by the network device with at least two transmission configuration indicator (TCI) state, for example, a first TCI state for a first TRP and a second TCI state for a second TRP. The indicated first TCI state and / or the indicated second TCI state may be a joint TCI state or a downlink (DL) TCI state.
[0039] In Block 104, the terminal device determines a first physical RS resource according to the indicated first TCI state and determines a second physical RS resource according to the indicated second TCI state. For example, the first physical RS resource can be a quasi-colocated (QCL) source RS in the indicated first TCI state; the second physical RS resource can be a QCL source RS in the indicated second TCI state. For another example, the first physical RS resource may be a synchronization signal (SS) / physical broadcast channel (PBCH) block (SSB) that a QCL source RS in the indicated first TCI state is QCLed to; the second physical RS resource is a SSB that a QCL source RS in the indicated second TCI state is QCLed to.
[0040] In Block 106, the terminal device detects whether a first event condition for the indicated first TCI state occurs by measuring power of the first physical RS resource and the physical RS resources in the first set and reports power information of one or more physical RS resources in the first set to the network device when the first event condition is satisfied, wherein the power of each of the one or more physical RS resources in the first set is above the power of the first physical RS resource.
[0041] More specifically, the first event condition for the indicated first TCI state is satisfied when the power of the one or more physical RS resources in the first set exceeds the power of the first physical RS resource by a first power threshold, and the power information reported when the first event condition is satisfied is associated with the one or more physical RS resources in the first set that have power greater than the power of the first physical RS resource at least by the first power threshold. For example, the power of the one or more physical RS resources in the first set may be represented by Layer 1 reference signal received power (L1-RSRP) . In an illustrated example, the first event condition for the indicated first TCI state is satisfied when one or more of the CSI-RS resources or SSBs in the first set have L1-RSRP measurement that is at least X1 dB greater than the L1-RSRP of the first CSI-RS or SSB.
[0042] In one implementation, when the first event condition for the indicated first TCI state is satisfied, a differential power of each of the reported one or more physical RS resources in the first set with a reference to a largest power reported in a same beam report may be reported to the network device. Specifically, the UE can report the L1-RSRP measurement of the reported CSI-RS or SSB with the largest L1-RSRP in the report and the UE can report the differential L1-RSRP of other reported CSI-RS resources or SSBs with a reference to the largest L1-RSRP reported in the same report.
[0043] In some embodiments, the terminal device may report one indication that indicates the first event condition for the indicated first TCI state is satisfied. The terminal device may also report the power measurement of the first physical RS resource to the network device. A differential power of the first physical RS resource with a reference to a largest power reported in a same beam report may be reported to the network device. For example, the terminal device may report the L1-RSRP measurement of the first CSI-RS or SSB. The terminal may also report the differential L1-RSRP of the first CSI-RS or the first SSB with a reference to the largest L1-RSRP reported in the same beam report.
[0044] In Block 108, the terminal device detects whether a second event condition for the indicated second TCI state occurs by measuring power of the second physical RS resource and the physical RS resources in the second set, and reports power information of one or more physical RS resources in the second set to the network device when the second event condition is satisfied, wherein the power of each of the one or more physical RS resources in the second set is above the power of the second physical RS resource.
[0045] More specifically, the second event condition for the indicated second TCI state is satisfied when the power of the one or more physical RS resources in the second set exceeds the power of the second physical RS resource by a second power threshold, and the power information reported when the second event condition is satisfied is associated with the one or more physical RS resources in the second set that have power greater than the power of the second physical RS resource at least by the second power threshold. For example, the power of the one or more physical RS resources in the second set may be represented by Layer 1 reference signal received power (L1-RSRP) . In an illustrated example, the second event condition for the indicated second TCI state is satisfied when one or more of the CSI-RS resources or SSBs in the second set have L1-RSRP measurement that is at least X1 dB greater than the L1-RSRP of the second CSI-RS or SSB.
[0046] In one implementation, when the second event condition for the indicated second TCI state is satisfied, a differential power of each of the reported one or more physical RS resources in the second set with a reference to a largest power reported in a same beam report may be reported to the network device. Specifically, the UE can report the L1-RSRP measurement of the reported CSI-RS or SSB with the largest L1-RSRP in the report and the UE can report the differential L1-RSRP of other reported CSI-RS resources or SSBs with a reference to the largest L1-RSRP reported in the same report.
[0047] In some embodiments, the terminal device may report one indication that indicates the second event condition for the indicated second TCI state is satisfied. The terminal device may also report the power measurement of the second physical RS resource to the network device. A differential power of the second physical RS resource with a reference to a largest power reported in a same beam report may be reported to the network device. For example, the terminal device may report the L1-RSRP measurement of the second CSI-RS or SSB. The terminal may also report the differential L1-RSRP of the second CSI-RS or the second SSB with a reference to the largest L1-RSRP reported in the same beam report.
[0048] In some embodiments of the present application, the first power threshold and the second power threshold may be of a same value. In an example, the first power threshold and the second power threshold may be provided by a same radio resource control (RRC) parameter.
[0049] In some embodiments of the present application, the power information may be reported in media access control control element (MAC CE) . In some other embodiments, the power information may be reported in uplink control information (UCI) carried in a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH) .
[0050] It should be noted that the reporting of the power information is initiated by the terminal device. That is, it is a terminal device-initiated beam reporting. In an illustrated example, the terminal device may be configured to operate the terminal device-initiated beam reporting in multi-TRP system through an indicator in one reporting setting (e.g., with an RRC parameter CSI-ReportConfig) .
[0051] With the proposed method 100 of beam reporting, the power information reporting is initiated by the terminal device in muti-TRP scenario, that is, the power information of one or more physical RS resources in the first set is reported to the network device when the first event condition is satisfied, and the power information of one or more physical RS resources in the second set is reported to the network device when the second event condition is satisfied. Therefore, this application implements UE-initiated beam reporting in muti-TRP system such that reporting overhead can be reduced and it can also realize channel information acquisition in time.
[0052] FIG. 3 illustrates a method of receiving beam report 200 by a network device according to an embodiment of the present application. In some embodiments, the method 200 includes the following. In Block 202, the network device (e.g., base station or gNB) configures a terminal device (e.g., a user equipment (UE) ) with a first set of physical reference signal (RS) resources (e.g., CSI-RS resources or SSBs) and a second set of physical RS resources (e.g., CSI-RS resources or SSBs) for beam measurement. In a multiple transmission reception point (multi-TRP) scenario, the network device indicates to the terminal device with a first transmission configuration indicator (TCI) state for the terminal device to determine a first physical RS resource according to the indicated first TCI state and indicates to the terminal device with a second TCI state for the terminal device to determine a second physical RS resource according to the indicated second TCI state. For example, the indicated first TCI state and / or the indicated second TCI state may be a joint TCI state or a downlink (DL) TCI state. In Block 204, the network device receives power information of one or more physical RS resources in the first set reported from the terminal device when a first event condition for the indicated first TCI state is satisfied, wherein whether the first event condition occurs is detected by the terminal device by measuring power of the first physical RS resource and the physical RS resources in the first set, and the power of each of the reported one or more physical RS resources in the first set is above the power of the first physical RS resource. In an illustrated example, when the first event condition for the indicated first TCI state is satisfied, a differential power of each of the reported one or more physical RS resources in the first set with a reference to a largest power reported in a same beam report may be reported to the network device. In Block 206, the network device receives power information of one or more physical RS resources in the second set reported from the terminal device when a second event condition for the indicated second TCI state is satisfied, wherein whether the second event condition occurs is detected by the terminal device by measuring power of the second physical RS resource and the physical RS resources in the second set, and the power of each of the reported one or more physical RS resources in the second set is above the power of the second physical RS resource. In an illustrated example, when the second event condition for the indicated second TCI state is satisfied, a differential power of each of the reported one or more physical RS resources in the second set with a reference to a largest power reported in a same beam report may be reported to the network device. This can implement UE-initiated beam reporting in a muti-TRP system, reduce reporting overhead, and enable channel information acquisition in time. Other details of the method 200 may be referred to the method 100 described above and are not repeated herein.
[0053] Further details about the invention are provided below.
[0054] In one embodiment, a UE can be configured to operate UE-initiated beam reporting in a multi-TRP system. In a multi-TRP system, the UE can be indicated with two TCI states: a first TCI state and a second TCI state. For UE-initiated beam reporting, the UE can be provided with two sets of CSI-RS resources or SS / PBCH blocks: a first set of CSI-RS resources or SSBs and a second set of CSI-RS resources or SSBs. The UE can be requested to determine a first CSI-RS or SSB from the first indicated TCI state and determine a second CSI-RS or SSB from the second indicated TCI state. The first CSI-RS can be the QCL source RS in the first indicated TCI state and the first SSB can be the SSB that the QCL source RS in the first indicated TCI state is QCLed to. The second CSI-RS can be the QCL source RS in the second indicated TCI state and the second SSB can be the SSB that the QCL source RS in the second indicated TCI state is QCLed to. The UE can be requested to measure the first CSI-RS or SSB and the CSI-RS resources or SSBs in the first set to detect whether the event condition for the first TCI state occurs. The event condition for the first TCI state is satisfied when one or more of the CSI-RS resources or SSBs (e.g., N1 CSI-RS resources or SSBs) in the first set have L1-RSRP measurement that is at least X1 dB greater than the L1-RSRP of the first CSI-RS or SSB, where the threshold value X1 can be provided by the system. The UE can be requested to measure the second CSI-RS or SSB and the CSI-RS resources or SSBs in the second set to detect whether the event condition for the second TCI state occurs. The event condition for the second TCI state is satisfied when one or more of the CSI-RS resources or SSBs (e.g., N2 CSI-RS resources or SSBs) in the second set have L1-RSRP measurement that is at least X2 dB greater than the L1-RSRP of the second CSI-RS or SSB, where the threshold value X2 can be provided by the system. In one example, X1 and X2 can be same value. In one example, X1 and X2 can be provided by the same RRC parameter.
[0055] When the event condition for the first TCI state is satisfied, the UE can be requested to report the L1-RSRP measurement of the N1 CSI-RS resources or SSBs configured in the first set and the UE can also be requested to report one indication that indicates the event condition for the first TCI state is satisfied, and the UE can also report the L1-RSRP measurement of the first CSI-RS or SSB. When the event condition for the second TCI state is satisfied, the UE can be requested to report the L1-RSRP measurement of the N2 CSI-RS resources or SSBs configured in the second set and the UE can also be requested to report one indication that indicates the event condition for the second TCI state is satisfied, and the UE can also report the L1-RSRP measurement of the second CSI-RS or SSB. The UE can report those reports in MAC CE. The UE can report those reports in UCI carried in a PUCCH or PUSCH.
[0056] In a first method, the UE can be configured to operate UE-initiated beam reporting in multi-TRP system through an indicator in one reporting setting RRC parameter CSI-ReportConfig. The UE can be provided with two sets of CSI-RS resources or SSBs in one CSI resource setting. The RRC parameter CSI-ResourceConfig can contain two CSI resource sets: the first CSI resource set consists of one or more NZP CSI-RS resource IDs or SSB indices and the second CSI resource set consists of one or more NZP CSI-RS resource IDs or SSB indices. The UE can be indicated with two TCI states: the first TCI state and the second TCI state. The TCI state can be a joint TCI state or a DL TCI state. Per the configuration of the gNB, the UE can be requested to determine a first CSI-RS resource that is the QCL source RS in the first TCI state. The gNB can also configure the UE to determine a first SSB which the QCL source RS in the first TCI state is QCLed to. Per the configuration of the gNB, the UE can be requested to determine a second CSI-RS resource that is the QCL source RS in the second TCI state. The gNB can also configure the UE to determine a second SSB which the QCL source RS in the second TCI state is QCLed to.
[0057] The UE can be requested to measure the L1-RSRP of the first CSI-RS resource or the first SSB corresponding to the first TCI state and the UE can be requested to measure the L1-RSRP of CSI-RS resources or SSBs contained in the first CSI resource set. When one or more of the CSI-RS resources or SSBs in the first CSI resource set has L1-RSRP that is at least X1 dB greater than that of the first CSI-RS resource or the first SSB for a given time period, the event condition corresponding to the first TCI state is satisfied.
[0058] The UE can be requested to measure the L1-RSRP of the second CSI-RS resource or the second SSB corresponding to the second TCI state and the UE can be requested to measure the L1-RSRP of CSI-RS resources or SSBs contained in the second CSI resource set. When one or more of the CSI-RS resources or SSBs in the second CSI resource set has L1-RSRP that is at least X2 dB greater than that of the second CSI-RS resource or the second SSB for a given time period, the event condition corresponding to the second TCI state is satisfied.
[0059] In a second method, when the event condition corresponding to the first TCI state is satisfied, the UE can be requested to report the related information to the gNB. The UE can be requested to report one or more of the following:
[0060] · One indicator that indicates that the event condition for the first TCI state is satisfied.
[0061] · The L1-RSRP measurement of the first CSI-RS or the first SSB.
[0062] ○ The UE can report the differential L1-RSRP of the first CSI-RS or the first SSB with a reference to the largest L1-RSRP reported in the same beam report.
[0063] · The L1-RSRP measurement of N1 NZP CSI-RS resources or SSBs consisted in the first CSI resource set.
[0064] ○ The UE can report the L1-RSRP measurement of the reported NZP CSI-RS or SSB with the largest L1-RSRP in the report and the UE can report the differential L1-RSRP of other reported NZP CSI-RS resources or SSBs with a reference to the largest L1-RSRP reported in the same report.
[0065] · The indicator of those N1 reported NZP CSI-RS resources or SSBs consisted in the first CSI resource set.
[0066] In a third method, when the event condition corresponding to the second TCI state is satisfied, the UE can be requested to report the related information to the gNB. The UE can be requested to report one or more of the following:
[0067] · One indicator that indicates that the event condition for the second TCI state is satisfied.
[0068] · The L1-RSRP measurement of the second CSI-RS or the second SSB.
[0069] ○ The UE can report the differential L1-RSRP of the second CSI-RS or the second SSB with a reference to the largest L1-RSRP reported in the same beam report.
[0070] · The L1-RSRP measurement of N2 NZP CSI-RS resources or SSBs consisted in the second CSI resource set.
[0071] ○ The UE can report the L1-RSRP measurement of the reported NZP CSI-RS or SSB with the largest L1-RSRP in the report and the UE can report the differential L1-RSRP of other reported NZP CSI-RS resources or SSBs with a reference to the largest L1-RSRP reported in the same report.
[0072] · The indicator of those N2 reported NZP CSI-RS resources or SSBs consisted in the second CSI resource set.
[0073] The UE can report the above beam report in a MAC CE message. The UE can report the above beam report in a UCI which can be carried in a PUCCH or PUSCH.
[0074] FIG. 4 illustrates a terminal device 300 according to an embodiment of the present application. The terminal device (e.g., a user equipment (UE) ) 300 includes a first configuration and indication module 301, a determination module 302, a first detection and reporting module 303, and a second detection and reporting module 304. The first configuration and indication module 301 is configured to be configured by a network device (e.g., base station or gNB) with a first set of physical reference signal (RS) resources (e.g., CSI-RS resources or SSBs) and a second set of physical RS resources (e.g., CSI-RS resources or SSBs) for beam measurement and be indicated by the network device with a first transmission configuration indicator (TCI) state and a second TCI state in a multiple transmission reception point (multi-TRP) scenario. For example, the indicated first TCI state and / or the indicated second TCI state may be a joint TCI state or a downlink (DL) TCI state. The determination module 302 is configured to determine a first physical RS resource according to the indicated first TCI state and determining a second physical RS resource according to the indicated second TCI state. The first detection and reporting module 303 is configured to detect whether a first event condition for the indicated first TCI state occurs by measuring power of the first physical RS resource and the physical RS resources in the first set, and report power information of one or more physical RS resources in the first set to the network device when the first event condition is satisfied, wherein the power of each of the one or more physical RS resources in the first set is above the power of the first physical RS resource. In an illustrated example, when the first event condition for the indicated first TCI state is satisfied, a differential power of each of the reported one or more physical RS resources in the first set with a reference to a largest power reported in a same beam report may be reported to the network device. The second detection and reporting module 304 is configured to detect whether a second event condition for the indicated second TCI state occurs by measuring power of the second physical RS resource and the physical RS resources in the second set, and report power information of one or more physical RS resources in the second set to the network device when the second event condition is satisfied, wherein the power of each of the one or more physical RS resources in the second set is above the power of the second physical RS resource. In an illustrated example, when the second event condition for the indicated second TCI state is satisfied, a differential power of each of the reported one or more physical RS resources in the second set with a reference to a largest power reported in a same beam report may be reported to the network device. This can implement UE-initiated beam reporting in a muti-TRP system, reduce reporting overhead, and enable channel information acquisition in time.
[0075] FIG. 5 illustrates a network device 400 according to an embodiment of the present application. The network device (e.g., base station or gNB) 400 includes a second configuration and indication module 401 and a receiving module 402. The second configuration and indication module 401 is configured to configure a terminal device (e.g., a user equipment (UE) ) with a first set of physical reference signal (RS) resources (e.g., CSI-RS resources or SSBs) and a second set of physical RS resources (e.g., CSI-RS resources or SSBs) for beam measurement, and in a multiple transmission reception point (multi-TRP) scenario, indicate to the terminal device with a first transmission configuration indicator (TCI) state for the terminal device to determine a first physical RS resource according to the indicated first TCI state and indicate to the terminal device with a second TCI state for the terminal device to determine a second physical RS resource according to the indicated second TCI state. For example, the indicated first TCI state and / or the indicated second TCI state may be a joint TCI state or a downlink (DL) TCI state. The receiving module 402 is configured to receive power information of one or more physical RS resources in the first set reported from the terminal device when a first event condition for the indicated first TCI state is satisfied, wherein whether the first event condition occurs is detected by the terminal device by measuring power of the first physical RS resource and the physical RS resources in the first set, and the power of each of the reported one or more physical RS resources in the first set is above the power of the first physical RS resource. In an illustrated example, when the first event condition for the indicated first TCI state is satisfied, a differential power of each of the reported one or more physical RS resources in the first set with a reference to a largest power reported in a same beam report may be reported to the network device. The receiving module 402 is further configured to receive power information of one or more physical RS resources in the second set reported from the terminal device when a second event condition for the indicated second TCI state is satisfied, wherein whether the second event condition occurs is detected by the terminal device by measuring power of the second physical RS resource and the physical RS resources in the second set, and the power of each of the reported one or more physical RS resources in the second set is above the power of the second physical RS resource. In an illustrated example, when the second event condition for the indicated second TCI state is satisfied, a differential power of each of the reported one or more physical RS resources in the second set with a reference to a largest power reported in a same beam report may be reported to the network device. This can implement UE-initiated beam reporting in a muti-TRP system, reduce reporting overhead, and enable channel information acquisition in time.
[0076] The embodiment of the present application further provides a computer readable storage medium for storing a computer program. The computer readable storage medium enables a computer to execute corresponding processes implemented in each of the methods of the embodiments of the present application. For brevity, details will not be described herein again.
[0077] The embodiment of the present application further provides a computer program product including computer program instructions. The computer program product enables a computer to execute corresponding processes implemented in each of the methods of the embodiments of the present application. For brevity, details will not be described herein again.
[0078] The embodiment of the present application further provides a computer program. The computer program enables a computer to execute corresponding processes implemented in each of the methods of the embodiments of the present application. For brevity, details will not be described herein again.
[0079] The description of above device embodiments is similar to the description of above method embodiments, having beneficial effects similar to the method embodiments. For technical details not disclosed in the device embodiments of the present application, please refer to the description of the method embodiments of the present application for the purpose of understanding.
[0080] Commercial interests for some embodiments are as follows. 1. Solving issues in the prior art. 2. Reporting CSI measurement of a target cell at very early stage. 3. Minimize the interrupt time of lower layer triggered mobility (LTM) . 4. Reducing latency. 5. Providing a good communication performance. 6. Providing high reliability. Some embodiments of the present application are used by 5G-NR chipset vendors, V2X communication system development vendors, automakers including cars, trains, trucks, buses, bicycles, moto-bikes, helmets, and etc., drones (unmanned aerial vehicles) , smartphone makers, communication devices for public safety use, AR / VR device maker for example gaming, conference / seminar, education purposes. The deployment scenarios include, but not limited to, indoor hotspot, dense urban, urban micro, urban macro, rural, factor hall, and indoor D2D scenarios. Some embodiments of the present application are a combination of “techniques / processes” that can be adopted in 3GPP specification to create an end product. Some embodiments of the present application could be adopted in 5G NR licensed and non-licensed or shared spectrum communications. Some embodiments of the present application propose technical mechanisms. The present example embodiment is applicable to NR in unlicensed spectrum (NR-U) . The present application can be applied to other mobile networks, in particular to mobile network of any further generation cellular network technology (6G, etc. ) .
[0081] FIG. 6 is a block diagram of an example system 700 for wireless communication according to an embodiment of the present application. Embodiments described herein may be implemented into the system using any suitably configured hardware and / or software. FIG. 6 illustrates the system 700 including a radio frequency (RF) circuitry 710, a baseband circuitry 720, an application circuitry 730, a memory / storage 740, a display 750, a camera 760, a sensor 770, and an input / output (I / O) interface 780, coupled with each other at least as illustrated. The application circuitry 730 may include a circuitry such as, but not limited to, one or more single-core or multi-core processors. The processors may include any combination of general-purpose processors and dedicated processors, such as graphics processors, application processors. The processors may be coupled with the memory / storage and configured to execute instructions stored in the memory / storage to enable various applications and / or operating systems running on the system.
[0082] The baseband circuitry 720 may include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processors may include a baseband processor. The baseband circuitry may handle various radio control functions that enables communication with one or more radio networks via the RF circuitry. The radio control functions may include, but are not limited to, signal modulation, encoding, decoding, radio frequency shifting, etc. In some embodiments, the baseband circuitry may provide for communication compatible with one or more radio technologies. For example, in some embodiments, the baseband circuitry may support communication with an evolved universal terrestrial radio access network (EUTRAN) , 5G NR (New Radio) network, and / or other wireless metropolitan area networks (WMAN) , a wireless local area network (WLAN) , a wireless personal area network (WPAN) . Embodiments in which the baseband circuitry is configured to support radio communications of more than one wireless protocol may be referred to as multi-mode baseband circuitry.
[0083] In various embodiments, the baseband circuitry 720 may include circuitry to operate with signals that are not strictly considered as being in a baseband frequency. For example, in some embodiments, baseband circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency. The RF circuitry 710 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium. In various embodiments, the RF circuitry may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network. In various embodiments, the RF circuitry 710 may include circuitry to operate with signals that are not strictly considered as being in a radio frequency. For example, in some embodiments, RF circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.
[0084] In various embodiments, the transmitter circuitry, control circuitry, or receiver circuitry discussed above with respect to the user equipment, eNB, or gNB may be embodied in whole or in part in one or more of the RF circuitry, the baseband circuitry, and / or the application circuitry. As used herein, “circuitry” may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC) , an electronic circuit, a processor (shared, dedicated, or group) , and / or a memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and / or other suitable hardware components that provide the described functionality. In some embodiments, the electronic device circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules. In some embodiments, some or all of the constituent components of the baseband circuitry, the application circuitry, and / or the memory / storage may be implemented together on a system on a chip (SOC) . The memory / storage 740 may be used to load and store data and / or instructions, for example, for system. The memory / storage for one embodiment may include any combination of suitable volatile memory, such as dynamic random access memory (DRAM) , and / or non-volatile memory, such as flash memory.
[0085] In various embodiments, the I / O interface 780 may include one or more user interfaces designed to enable user interaction with the system and / or peripheral component interfaces designed to enable peripheral component interaction with the system. User interfaces may include, but are not limited to a physical keyboard or keypad, a touchpad, a speaker, a microphone, etc. Peripheral component interfaces may include, but are not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power supply interface. In various embodiments, the sensor 770 may include one or more sensing devices to determine environmental conditions and / or location information related to the system. In some embodiments, the sensors may include, but are not limited to, a gyro sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit may also be part of, or interact with, the baseband circuitry and / or RF circuitry to communicate with components of a positioning network, e.g., a global positioning system (GPS) satellite.
[0086] In various embodiments, the display 750 may include a display, such as a liquid crystal display and a touch screen display. In various embodiments, the system 700 may be a mobile computing device such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, a smartphone, an AR / VR glasses, etc. In various embodiments, system may have more or less components, and / or different architectures. Where appropriate, methods described herein may be implemented as a computer program. The computer program may be stored on a storage medium, such as a non-transitory storage medium.
[0087] A person having ordinary skill in the art understands that each of the units, algorithm, and steps described and disclosed in the embodiments of the present application are realized using electronic hardware or combinations of software for computers and electronic hardware. Whether the functions run in hardware or software depends on the condition of application and design requirement for a technical plan. A person having ordinary skill in the art can use different ways to realize the function for each specific application while such realizations should not go beyond the scope of the present application. It is understood by a person having ordinary skill in the art that he / she can refer to the working processes of the system, device, and unit in the above-mentioned embodiment since the working processes of the above-mentioned system, device, and unit are basically the same. For easy description and simplicity, these working processes will not be detailed.
[0088] It is understood that the disclosed system, device, and method in the embodiments of the present application can be realized with other ways. The above-mentioned embodiments are exemplary only. The division of the units is merely based on logical functions while other divisions exist in realization. It is possible that a plurality of units or components are combined or integrated in another system. It is also possible that some characteristics are omitted or skipped. On the other hand, the displayed or discussed mutual coupling, direct coupling, or communicative coupling operate through some ports, devices, or units whether indirectly or communicatively by ways of electrical, mechanical, or other kinds of forms.
[0089] The units as separating components for explanation are or are not physically separated. The units for display are or are not physical units, that is, located in one place or distributed on a plurality of network units. Some or all of the units are used according to the purposes of the embodiments. Moreover, each of the functional units in each of the embodiments can be integrated in one processing unit, physically independent, or integrated in one processing unit with two or more than two units.
[0090] If the software function unit is realized and used and sold as a product, it can be stored in a readable storage medium in a computer. Based on this understanding, the technical plan proposed by the present application can be essentially or partially realized as the form of a software product. Or, one part of the technical plan beneficial to the conventional technology can be realized as the form of a software product. The software product in the computer is stored in a storage medium, including a plurality of commands for a computational device (such as a personal computer, a server, or a network device) to run all or some of the steps disclosed by the embodiments of the present application. The storage medium includes a USB disk, a mobile hard disk, a read-only memory (ROM) , a random access memory (RAM) , a floppy disk, or other kinds of media capable of storing program codes.
[0091] While the present application has been described in connection with what is considered the most practical and preferred embodiments, it is understood that the present application is not limited to the disclosed embodiments but is intended to cover various arrangements made without departing from the scope of the broadest interpretation of the appended claims.
Claims
A method of beam reporting, performed by a terminal device, comprising:being configured by a network device with a first set of physical reference signal (RS) resources and a second set of physical RS resources for beam measurement and being indicated by the network device with a first transmission configuration indicator (TCI) state and a second TCI state in a multiple transmission reception point (multi-TRP) scenario;determining a first physical RS resource according to the indicated first TCI state and determining a second physical RS resource according to the indicated second TCI state;detecting whether a first event condition for the indicated first TCI state occurs by measuring power of the first physical RS resource and the physical RS resources in the first set, and reporting power information of one or more physical RS resources in the first set to the network device when the first event condition is satisfied, wherein the power of each of the one or more physical RS resources in the first set is above the power of the first physical RS resource; anddetecting whether a second event condition for the indicated second TCI state occurs by measuring power of the second physical RS resource and the physical RS resources in the second set, and reporting power information of one or more physical RS resources in the second set to the network device when the second event condition is satisfied, wherein the power of each of the one or more physical RS resources in the second set is above the power of the second physical RS resource.The method of claim 1, wherein the reporting of the power information is initiated by the terminal device.The method of claim 2, wherein the reporting of the power information initiated by the terminal device is operated through an indicator in one reporting setting.The method of any of claims 1 to 3, wherein the first set of physical RS resources and the second set of physical RS resources are configured in one resource setting.The method of any of claims 1 to 4, wherein the indicated first TCI state and / or the indicated second TCI state is a joint TCI state or a downlink (DL) TCI state.The method of any of claims 1 to 5, wherein the first physical RS resource is a quasi-colocated (QCL) source RS in the indicated first TCI state, and / or the second physical RS resource is a QCL source RS in the indicated second TCI state.The method of any of claims 1 to 5, wherein the first physical RS resource is a synchronization signal (SS) / physical broadcast channel (PBCH) block (SSB) that a QCL source RS in the indicated first TCI state is QCLed to, and / or the second physical RS resource is a SSB that a QCL source RS in the indicated second TCI state is QCLed to.The method of any of claims 1 to 7, further comprising:reporting one indication that indicates the first event condition for the indicated first TCI state is satisfied; and / orreporting one indication that indicates the second event condition for the indicated second TCI state is satisfied.The method of any of claims 1 to 8, further comprising:reporting power measurement of the first physical RS resource to the network device; and / or reporting power measurement of the second physical RS resource to the network device.The method of claim 9, wherein a differential power of the first physical RS resource with a reference to a largest power reported in a same beam report is reported to the network device.The method of claim 9, wherein a differential power of the second physical RS resource with a reference to a largest power reported in a same beam report is reported to the network device.The method of any of claims 1 to 11, wherein when the first event condition for the indicated first TCI state is satisfied, a differential power of each of the reported one or more physical RS resources in the first set with a reference to a largest power reported in a same beam report is reported to the network device.The method of any of claims 1 to 11, wherein when the second event condition for the indicated second TCI state is satisfied, a differential power of each of the reported one or more physical RS resources in the second set with a reference to a largest power reported in a same beam report is reported to the network device.The method of any of claims 1 to 13, wherein the first event condition for the indicated first TCI state is satisfied when the power of the one or more physical RS resources in the first set exceeds the power of the first physical RS resource by a first power threshold, and the power information reported when the first event condition is satisfied is associated with the one or more physical RS resources in the first set that have power greater than the power of the first physical RS resource at least by the first power threshold.The method of claim 14, wherein the second event condition for the indicated second TCI state is satisfied when the power of the one or more physical RS resources in the second set exceeds the power of the second physical RS resource by a second power threshold, and the power information reported when the second event condition is satisfied is associated with the one or more physical RS resources in the second set that have power greater than the power of the second physical RS resource at least by the second power threshold.The method of claim 15, wherein the first power threshold and the second power threshold are of a same value.The method of claim 15 or 16, wherein the first power threshold and the second power threshold are provided by a same radio resource control (RRC) parameter.The method of any of claims 1 to 17, wherein the power of the one or more physical RS resources in the first set and / or the second set is represented by Layer 1 reference signal received power (L1-RSRP) .The method of any of claims 1 to 18, wherein the power information is reported in media access control control element (MAC CE) .The method of any of claims 1 to 18, wherein the power information is reported in uplink control information (UCI) carried in a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH) .The method of any of claims 1 to 20, wherein the physical RS resources in the first set and / or the second set comprise channel state information reference signal (CSI-RS) resources or SS / PBCH blocks.A method of receiving beam report, performed by a network device, comprising:configuring a terminal device with a first set of physical reference signal (RS) resources and a second set of physical RS resources for beam measurement, and in a multiple transmission reception point (multi-TRP) scenario, indicating to the terminal device with a first transmission configuration indicator (TCI) state for the terminal device to determine a first physical RS resource according to the indicated first TCI state and indicating to the terminal device with a second TCI state for the terminal device to determine a second physical RS resource according to the indicated second TCI state;receiving power information of one or more physical RS resources in the first set reported from the terminal device when a first event condition for the indicated first TCI state is satisfied, wherein whether the first event condition occurs is detected by the terminal device by measuring power of the first physical RS resource and the physical RS resources in the first set, and the power of each of the reported one or more physical RS resources in the first set is above the power of the first physical RS resource; andreceiving power information of one or more physical RS resources in the second set reported from the terminal device when a second event condition for the indicated second TCI state is satisfied, wherein whether the second event condition occurs is detected by the terminal device by measuring power of the second physical RS resource and the physical RS resources in the second set, and the power of each of the reported one or more physical RS resources in the second set is above the power of the second physical RS resource.The method of claim 22, wherein the reporting of the power information is initiated by the terminal device.The method of claim 23, wherein the reporting of the power information initiated by the terminal device is operated through an indicator in one reporting setting.The method of any of claims 22 to 24, wherein the first set of physical RS resources and the second set of physical RS resources are configured in one resource setting.The method of any of claims 22 to 25, wherein the indicated first TCI state and / or the indicated second TCI state is a joint TCI state or a downlink (DL) TCI state.The method of any of claims 22 to 26, wherein the first physical RS resource is a quasi-colocated (QCL) source RS in the indicated first TCI state, and / or the second physical RS resource is a QCL source RS in the indicated second TCI state.The method of any of claims 22 to 27, wherein the first physical RS resource is a synchronization signal (SS) / physical broadcast channel (PBCH) block (SSB) that a QCL source RS in the indicated first TCI state is QCLed to, and / or the second physical RS resource is a SSB that a QCL source RS in the indicated second TCI state is QCLed to.The method of any of claims 22 to 28, further comprising:receiving one indication that indicates the first event condition for the indicated first TCI state is satisfied; and / orreceiving one indication that indicates the second event condition for the indicated second TCI state is satisfied.The method of any of claims 22 to 29, further comprising:receiving power measurement of the first physical RS resource from the terminal device; and / or receiving power measurement of the second physical RS resource from the terminal device.The method of claim 30, wherein a differential power of the first physical RS resource with a reference to a largest power reported in a same beam report is received by the network device.The method of claim 30, wherein a differential power of the second physical RS resource with a reference to a largest power reported in a same beam report is received by the network device.The method of any of claims 22 to 32, wherein when the first event condition for the indicated first TCI state is satisfied, a differential power of each of the reported one or more physical RS resources in the first set with a reference to a largest power reported in a same beam report is received by the network device.The method of any of claims 22 to 32, wherein when the second event condition for the indicated second TCI state is satisfied, a differential power of each of the reported one or more physical RS resources in the second set with a reference to a largest power reported in a same beam report is received by the network device.The method of any of claims 22 to 34, wherein the first event condition for the indicated first TCI state is satisfied when the power of the one or more physical RS resources in the first set exceeds the power of the first physical RS resource by a first power threshold, and the power information received when the first event condition is satisfied is associated with the one or more physical RS resources in the first set that have power greater than the power of the first physical RS resource at least by the first power threshold.The method of claim 35, wherein the second event condition for the indicated second TCI state is satisfied when the power of the one or more physical RS resources in the second set exceeds the power of the second physical RS resource by a second power threshold, and the power information received when the second event condition is satisfied is associated with the one or more physical RS resources in the second set that have power greater than the power of the second physical RS resource at least by the second power threshold.The method of claim 36, wherein the first power threshold and the second power threshold are of a same value.The method of claim 36 or 37, wherein the first power threshold and the second power threshold are provided by a same radio resource control (RRC) parameter.The method of any of claims 22 to 38, wherein the power of the one or more physical RS resources in the first set and / or the second set is represented by Layer 1 reference signal received power (L1-RSRP) .The method of any of claims 22 to 39, wherein the power information is received in media access control control element (MAC CE) .The method of any of claims 22 to 40, wherein the power information is received in uplink control information (UCI) carried in a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH) .The method of any of claims 22 to 41, wherein the physical RS resources in the first set and / or the second set comprise channel state information reference signal (CSI-RS) resources or SS / PBCH blocks.A terminal device, comprising:a memory; anda processor coupled to the memory,wherein the processor is configured to call and run program instructions stored in the memory, to execute the method of any of claims 1 to 21.A network device, comprising:a memory; anda processor coupled to the memory,wherein the processor is configured to call and run program instructions stored in the memory, to execute the method of any of claims 22 to 42.A terminal device, comprising:a first configuration and indication module, configured to be configured by a network device with a first set of physical reference signal (RS) resources and a second set of physical RS resources for beam measurement and be indicated by the network device with a first transmission configuration indicator (TCI) state and a second TCI state in a multiple transmission reception point (multi-TRP) scenario;a determination module, configured to determine a first physical RS resource according to the indicated first TCI state and determine a second physical RS resource according to the indicated second TCI state;a first detection and reporting module, configured to detect whether a first event condition for the indicated first TCI state occurs by measuring power of the first physical RS resource and the physical RS resources in the first set, and report power information of one or more physical RS resources in the first set to the network device when the first event condition is satisfied, wherein the power of each of the one or more physical RS resources in the first set is above the power of the first physical RS resource; anda second detection and reporting module, configured to detect whether a second event condition for the indicated second TCI state occurs by measuring power of the second physical RS resource and the physical RS resources in the second set, and report power information of one or more physical RS resources in the second set to the network device when the second event condition is satisfied, wherein the power of each of the one or more physical RS resources in the second set is above the power of the second physical RS resource.A network device, comprising:a second configuration and indication module, configured to configure a terminal device with a first set of physical reference signal (RS) resources and a second set of physical RS resources for beam measurement, and in a multiple transmission reception point (multi-TRP) scenario, indicate to the terminal device with a first transmission configuration indicator (TCI) state for the terminal device to determine a first physical RS resource according to the indicated first TCI state and indicate to the terminal device with a second TCI state for the terminal device to determine a second physical RS resource according to the indicated second TCI state;a receiving module, configured to receive power information of one or more physical RS resources in the first set reported from the terminal device when a first event condition for the indicated first TCI state is satisfied, wherein whether the first event condition occurs is detected by the terminal device by measuring power of the first physical RS resource and the physical RS resources in the first set, and the power of each of the reported one or more physical RS resources in the first set is above the power of the first physical RS resource; andthe receiving module, further configured to receive power information of one or more physical RS resources in the second set reported from the terminal device when a second event condition for the indicated second TCI state is satisfied, wherein whether the second event condition occurs is detected by the terminal device by measuring power of the second physical RS resource and the physical RS resources in the second set, and the power of each of the reported one or more physical RS resources in the second set is above the power of the second physical RS resource.A non-transitory machine-readable storage medium having stored thereon instructions that, when executed by a computer, cause the computer to execute the method of any one of claims 1 to 21 or the method of any one of claims 22 to 42.A chip, comprising:a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the method of any one of claims 1 to 21 or the method of any one of claims 22 to 42.A computer readable storage medium, in which a computer program is stored, wherein the computer program causes a computer to execute the method of any one of claims 1 to 21 or the method of any one of claims 22 to 42.A computer program product, comprising a computer program, wherein the computer program causes a computer to execute the method of any one of claims 1 to 21 or the method of any one of claims 22 to 42.A computer program, wherein the computer program causes a computer to execute the method of any one of claims 1 to 21 or the method of any one of claims 22 to 42.
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