Communication method and communication apparatus

Abstract

The present application provides a communication method and a communication apparatus. The method comprises: a terminal device receiving first indication information, the first indication information indicating the priorities of N reference signal resources, and N being an integer greater than 1; receiving a reference signal by means of the N reference signal resources; on the basis of the priorities of the N reference signal resources, measuring at least one reference signal resource among the N reference signal resources to obtain M pieces of channel state information, wherein M is an integer greater than or equal to 1; sending the M pieces of channel state information. In this way, the scheduling requirements of other terminal devices in a network can be comprehensively considered, the terminal devices are assisted in selection of channel state information of proper reference signal resources for measurement and reporting, and the total cell capacity of is improved.

Description

Communication method and communication device

[0001] This application claims priority to the Chinese patent application with application number 202410373234.4 filed with the State Intellectual Property Office of China on March 27, 2024, and priority to the Chinese patent application with the invention name “Communication Method and Communication Device”, all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of wireless communications, and more particularly, to a communication method and a communication device. Background Art

[0003] In wireless communications, reference signals are transmitted between transmitters and receivers for purposes such as sending and receiving data, achieving system synchronization, and providing feedback on channel information. For example, a transmitter sends a reference signal to a receiver, which then receives the reference signal and performs operations based on the reference information, such as performing channel measurements and submitting measurement reports. Summary of the Invention

[0004] The present application provides a communication method and a communication device, which can comprehensively consider the scheduling needs of other users in the network and assist terminal equipment in selecting appropriate measurement results for reporting.

[0005] In the first aspect, a communication method is provided. This method can be applied to the terminal side, that is, the method can be executed by a terminal device or by a component of the terminal device (such as a chip or chip system or circuit or communication module), which is not limited in this application. The following mainly uses the terminal device as an example for description.

[0006] The method may include: receiving first indication information, where the first indication information indicates the priority of N reference signal resources, where N is an integer greater than 1; receiving a reference signal through the N reference signal resources; based on the priority of the N reference signal resources, measuring at least one reference signal resource of the N reference signal resources to obtain M channel state information, where M is an integer greater than 1 or equal to 1; and sending the M channel state information.

[0007] Optionally, the measurement report is a (channel state information, CSI) report.

[0008] Based on the above technical solution, the network device can indicate to the terminal device the priority of N reference signal resources used for measurement (such as channel measurement), so that the terminal device can measure and report based on the priority of the N reference signal resources. In this way, the priority of the N reference signal resources can be determined by comprehensively considering the scheduling needs of other terminal devices in the network. This can achieve comprehensive consideration of the scheduling needs of other terminal devices in the network, assist (or guide) the terminal device in selecting the channel state information of the appropriate reference signal resource for measurement and reporting, enable the network device to pair the air interface with different terminal devices for transmission, and improve the total capacity of the cell.

[0009] In conjunction with the first aspect, in certain implementations of the first aspect, the first indication information indicates one or more of the following information: a value of M, the number of the at least one reference signal resource, the number of high-priority reference signal resources among the N reference signal resources, the number of low-priority reference signal resources among the N reference signal resources, high-priority reference signal resources among the N reference signal resources, low-priority reference signal resources among the N reference signal resources, priority ranking of the N reference signal resources, and a selection criterion. As an example, the selection criterion is used to determine the M channel state information.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the first indication information indicates the value of M, including: the first indication information includes the value of M; or, the first indication information includes a numerical value T, and T is associated with the value of M.

[0011] Optionally, the value of M is determined based on the capabilities of the terminal device.

[0012] In combination with the first aspect, in certain implementations of the first aspect, the first indication information is carried in one or more of the following signalings: radio resource control, medium access control, and downlink control information.

[0013] In combination with the first aspect, in certain implementations of the first aspect, the first indication information is a bitmap, and each bit in the bitmap corresponds to a reference signal resource. The bit value is the first value, indicating that the reference signal resource is a high-priority reference signal resource, and the bit value is the second value, indicating that the reference signal resource is a low-priority reference signal resource.

[0014] Based on the above technical solution, the priorities of N reference signal resources can be indicated by a bitmap. In other words, the bitmap can be used to indicate which reference signal resources among the N reference signal resources are high-priority reference signal resources and which reference signal resources are low-priority reference signal resources.

[0015] With reference to the first aspect, in certain implementations of the first aspect, a value of the first indication information is associated with a high-priority reference signal resource among the N reference signal resources.

[0016] Based on the above technical solution, the priority of the N reference signal resources can be indicated by the value of the first indication information. In other words, the value of the first indication information can be used to determine which reference signal resources among the N reference signal resources are high-priority reference signal resources. This can reduce signaling overhead.

[0017] In combination with the first aspect, in certain implementations of the first aspect, a value of the first indication information is associated with a low-priority reference signal resource among the N reference signal resources.

[0018] Based on the above technical solution, the priority of the N reference signal resources can be indicated by the value of the first indication information. In other words, the value of the first indication information can be used to determine which reference signal resources among the N reference signal resources are low-priority reference signal resources. This can reduce signaling overhead.

[0019] With reference to the first aspect, in certain implementations of the first aspect, a value of the first indication information is associated with a priority order of the reference signal resources among the N reference signal resources.

[0020] Based on the above technical solution, the priority ranking of the N reference signal resources can be indicated by the value of the first indication information. In other words, the priority ranking of the reference signal resources among the N reference signal resources can be determined by the value of the first indication information.

[0021] In combination with the first aspect, in certain implementations of the first aspect, the M channel state information are determined according to priorities and selection criteria of the N reference signal resources.

[0022] Based on the above technical solution, when reporting channel state information, the terminal device can comprehensively consider the priorities of the N reference signal resources indicated by the network device, and can also consider its own channel quality to improve the effectiveness of the reported channel state information.

[0023] In combination with the first aspect, in some implementations of the first aspect, the method further includes: receiving second indication information, where the second indication information indicates the selection criterion.

[0024] Based on the above technical solution, the network device can indicate the selection criteria to the terminal device.

[0025] In combination with the first aspect, in some implementations of the first aspect, the selection criterion is predefined.

[0026] In combination with the first aspect, in certain implementations of the first aspect, the selection criteria include any one of the following: the reference signal resources associated with part of the channel state information in the M channel state information are determined by the terminal device, and part of the channel state information is determined according to the priority of the N reference signal resources; or, the reference signal resources associated with the M channel state information are determined according to the priority of the N reference signal resources; or, the reference signal resources associated with the M channel state information are determined by the terminal device; or, whether the reference signal resources associated with the M channel state information are determined according to the priority of the N reference signal resources is determined by the terminal device.

[0027] In combination with the first aspect, in some implementations of the first aspect, the method further includes: sending third indication information, where the third indication information indicates a selection criterion used by the M channel state information.

[0028] Optionally, the third indication information and the M channel state information are carried in the same signaling.

[0029] Optionally, sending the third indication information includes: sending the third indication information after receiving the second indication information. Alternatively, sending the third indication information includes: predefining one or more selection criteria and sending the third indication information, wherein the third indication information indicates the selection criteria used when determining the M channel state information.

[0030] Based on the above technical solution, the terminal device can indicate to the network device the selection criteria used when determining the M channel state information, thereby improving the flexibility of the terminal device in determining the M channel state information.

[0031] In combination with the first aspect, in certain implementations of the first aspect, the M channel state information include M1 first channel state information and M2 second channel state information, the M2 second channel state information is determined based on the priority of the N reference signal resources, M1 and M2 are both integers greater than 0 or equal to 0 and less than M or equal to M, M1+M2=M.

[0032] Based on the above technical solution, the M channel state information indicated by the terminal device to the network device may include the channel state information of the reference signal resources selected by the terminal device itself, and the channel state information of the reference signal resources determined based on the priority of the reference signal resources indicated by the network device, which can enhance the flexibility of the terminal device in determining the M channel state information.

[0033] In combination with the first aspect, in certain implementations of the first aspect, the M channel state information include M3 reference signal resource identifiers, the M3 reference signal resource identifiers indicate the reference signal resources associated with the M1 first channel state information, and M3 is an integer greater than 0 or equal to 0 and less than M or equal to M.

[0034] Optionally, M3=1 or M3=M1.

[0035] Based on the above technical solution, if the terminal device determines the channel state information of the reference signal resource based on the priority of the reference signal resource indicated by the network device, the terminal device may no longer feedback the reference signal resource identifier. In other words, the terminal device only needs to feedback the reference signal resource identifier corresponding to the reference signal resource selected autonomously. This can reduce the signaling overhead caused by the terminal device feedback of the channel state information.

[0036] In combination with the first aspect, in certain implementations of the first aspect, the M1 first channel state information satisfies any one of the following: the signal quality of the reference signal corresponding to the first channel state information is greater than or equal to a preset threshold; or, the signal quality of the reference signal corresponding to the first channel state information is greater than or equal to the signal quality of the reference signal corresponding to the second channel state information.

[0037] In combination with the first aspect, in certain implementations of the first aspect, when a preset condition is met, the M channel state information includes the M1 first channel state information and the M2 second channel state information.

[0038] In combination with the first aspect, in certain implementations of the first aspect, the preset condition includes any one of the following: the number of high-priority reference signal resources among the N reference signal resources is less than M; or, the reference signal resources whose signal quality is greater than a preset threshold do not belong to the high-priority reference signal resources among the N reference signal resources.

[0039] With reference to the first aspect, in certain implementations of the first aspect, the M channel state information include channel state information corresponding to a high-priority reference signal resource among the N reference signal resources.

[0040] With reference to the first aspect, in certain implementations of the first aspect, the M channel state information are obtained by measuring the reference signal on M reference signal resources among the N reference signal resources.

[0041] In combination with the first aspect, in certain implementations of the first aspect, the method also includes: receiving fourth indication information, the fourth indication information indicating a reference signal resource for interference measurement, the association relationship between the reference signal resource for interference measurement and the N reference signal resources being related to the type of the reference signal resource for interference measurement.

[0042] Based on this method, the association between the reference signal resources used for measurement (such as channel measurement) and the reference signal resources used for interference measurement can be determined according to the type of reference signal resources used for interference measurement. When the types of reference signal resources used for interference measurement are different, the association relationship is also different. More matching interference measurement resources are configured for terminal devices for different service beams, thereby improving the channel state information measurement accuracy of the terminal device.

[0043] In combination with the first aspect, in certain implementations of the first aspect, the M channel state information are determined based on at least one reference signal resource of the N reference signal resources and the reference signal resource used for interference measurement, and the association relationship between the reference signal resource used for interference measurement and the N reference signal resources is related to the type of the reference signal resource used for interference measurement.

[0044] In combination with the first aspect, in certain implementations of the first aspect, when the reference signal resource used for interference measurement is a non-zero power reference signal resource, the reference signal resource used for interference measurement corresponds one-to-one to the N reference signal resources; and / or, when the reference signal resource used for interference measurement is a zero power reference signal resource, the reference signal resource used for interference measurement is 1, and the reference signal resource used for interference measurement corresponds to the N reference signal resources.

[0045] Based on the above technical solution, if the reference signal resource used for interference measurement is a non-zero power reference signal resource, the reference signal resource used for interference measurement corresponds one-to-one to the reference signal resource used for channel measurement, that is, one reference signal resource for interference measurement corresponds to one reference signal resource for channel measurement; if the reference signal resource used for interference measurement is a zero power reference signal resource, the reference signal resource used for interference measurement corresponds one-to-many to the reference signal resource used for channel measurement, that is, one reference signal resource for interference measurement can correspond to multiple reference signal resources for channel measurement.

[0046] In a second aspect, a communication method is provided. This method can be applied to the network side, that is, the method can be executed by a network device or by a component of the network device (such as a chip or chip system or circuit), which is not limited in this application. The following mainly uses a network device as an example for description.

[0047] The method may include: sending first indication information, where the first indication information indicates the priority of N reference signal resources, where N is an integer greater than 1; sending a reference signal through the N reference signal resources; and receiving M channel state information, where the M channel state information is obtained by measuring at least one reference signal resource of the N reference signal resources based on the priority of the N reference signal resources, where M is an integer greater than 1 or equal to 1.

[0048] In combination with the second aspect, in certain implementations of the second aspect, the first indication information indicates one or more of the following information: the value of M, the number of the at least one reference signal resource, the number of high-priority reference signal resources among the N reference signal resources, the number of low-priority reference signal resources among the N reference signal resources, the high-priority reference signal resources among the N reference signal resources, the low-priority reference signal resources among the N reference signal resources, the priority sorting of the N reference signal resources, and the selection criteria.

[0049] In conjunction with the second aspect, in certain implementations of the second aspect, the first indication information indicates a value of M, including: the first indication information includes the value of M; or the first indication information includes a value T, and T is associated with the value of M. Optionally, the value of M is determined based on the capabilities of the terminal device.

[0050] In combination with the second aspect, in certain implementations of the second aspect, the first indication information is carried in one or more of the following signalings: radio resource control, medium access control, and downlink control information.

[0051] In combination with the second aspect, in certain implementations of the second aspect, the first indication information is a bitmap, and each bit in the bitmap corresponds to a reference signal resource. The bit value of the first value indicates that the reference signal resource is a high-priority reference signal resource, and the bit value of the second value indicates that the reference signal resource is a low-priority reference signal resource.

[0052] In combination with the second aspect, in certain implementations of the second aspect, a value of the first indication information is associated with a high-priority reference signal resource among the N reference signal resources.

[0053] In combination with the second aspect, in some implementations of the second aspect, a value of the first indication information is associated with a low-priority reference signal resource among the N reference signal resources.

[0054] In combination with the second aspect, in certain implementations of the second aspect, a value of the first indication information is associated with a priority order of the reference signal resources in the N reference signal resources.

[0055] In combination with the second aspect, in certain implementations of the second aspect, the M channel state information are determined according to priorities and selection criteria of the N reference signal resources.

[0056] In combination with the second aspect, in some implementations of the second aspect, the method further includes: sending second indication information, where the second indication information indicates the selection criterion.

[0057] In combination with the second aspect, in certain implementations of the second aspect, the selection criteria include any one of the following: the reference signal resources associated with part of the channel state information in the M channel state information are determined by the terminal device, and part of the channel state information is determined according to the priority of the N reference signal resources; or, the reference signal resources associated with the M channel state information are determined according to the priority of the N reference signal resources; or, the reference signal resources associated with the M channel state information are determined by the terminal device; or, whether the reference signal resources associated with the M channel state information are determined according to the priority of the N reference signal resources is determined by the terminal device.

[0058] In conjunction with the second aspect, in certain implementations of the second aspect, the method further includes: receiving third indication information, the third indication information indicating a selection criterion used by the M channel state information. Optionally, the third indication information and the M channel state information are carried in the same signaling.

[0059] In combination with the second aspect, in certain implementations of the second aspect, the M channel state information include M1 first channel state information and M2 second channel state information, the M2 second channel state information is determined based on the priority of the N reference signal resources, M1 and M2 are both integers greater than 0 or equal to 0 and less than M or equal to M, M1+M2=M.

[0060] In conjunction with the second aspect, in certain implementations of the second aspect, the M channel state information includes M3 reference signal resource identifiers, where the M3 reference signal resource identifiers indicate reference signal resources associated with the M1 first channel state information, and M3 is an integer greater than or equal to 0 and less than or equal to M. Optionally, M3=1 or M3=M1.

[0061] In combination with the second aspect, in certain implementations of the second aspect, the M1 first channel state information satisfies any one of the following: the signal quality of the reference signal corresponding to the first channel state information is greater than or equal to a preset threshold; or, the signal quality of the reference signal corresponding to the first channel state information is greater than or equal to the signal quality of the reference signal corresponding to the second channel state information.

[0062] In combination with the second aspect, in certain implementations of the second aspect, when a preset condition is met, the M channel state information includes the M1 first channel state information and the M2 second channel state information.

[0063] In combination with the second aspect, in certain implementations of the second aspect, the preset condition includes any one of the following: the number of high-priority reference signal resources among the N reference signal resources is less than M; or, the reference signal resources whose signal quality is greater than a preset threshold do not belong to the high-priority reference signal resources among the N reference signal resources.

[0064] In combination with the second aspect, in certain implementations of the second aspect, the M channel state information includes channel state information corresponding to a high-priority reference signal resource among the N reference signal resources.

[0065] In combination with the second aspect, in certain implementations of the second aspect, the M channel state information are obtained by measuring the reference signal on M reference signal resources among the N reference signal resources.

[0066] In combination with the second aspect, in certain implementations of the second aspect, the method also includes: sending fourth indication information, wherein the fourth indication information indicates a reference signal resource used for interference measurement, and the association relationship between the reference signal resource used for interference measurement and the N reference signal resources is related to the type of the reference signal resource used for interference measurement.

[0067] In combination with the second aspect, in certain implementations of the second aspect, the M channel state information are determined based on at least one reference signal resource of the N reference signal resources and the reference signal resource used for interference measurement, and the association between the reference signal resource used for interference measurement and the N reference signal resources is related to the type of the reference signal resource used for interference measurement.

[0068] In combination with the second aspect, in certain implementations of the second aspect, when the reference signal resource used for interference measurement is a non-zero power reference signal resource, the reference signal resource used for interference measurement corresponds one-to-one to the N reference signal resources; and / or, when the reference signal resource used for interference measurement is a zero power reference signal resource, the reference signal resource used for interference measurement is 1, and the reference signal resource used for interference measurement corresponds to the N reference signal resources.

[0069] Regarding the beneficial effects and possible designs of the second aspect, please refer to the relevant description in the first aspect and will not be repeated here.

[0070] In a third aspect, a communication device is provided, the device being configured to execute the method of any possible implementation of the first or second aspect. Specifically, the device may include units and / or modules, such as a processing unit and / or a communication unit, for executing the method of any possible implementation of the first or second aspect.

[0071] In one implementation, the apparatus is a communication device (e.g., a terminal device or a network device). When the apparatus is a communication device, the communication unit may be a transceiver or an input / output interface; the processing unit may be at least one processor. Alternatively, the transceiver may be a transceiver circuit. Alternatively, the input / output interface may be an input / output circuit.

[0072] In another implementation, the device is a chip, chip system, circuit, or communication module for a communication device (e.g., a terminal device or a network device). When the device is a chip, chip system, or circuit for a communication device, the communication unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip, chip system, or circuit; and the processing unit may be at least one processor, processing circuit, or logic circuit.

[0073] In a fourth aspect, a communication device is provided, comprising: at least one processor configured to execute a computer program or instruction to perform the method of any possible implementation of the first or second aspect. Optionally, the device further comprises a memory configured to store the computer program or instruction. Optionally, the device further comprises a communication interface coupled to the processor and configured to input the computer program or instruction into the processor or output information from the processor.

[0074] In one implementation, the apparatus is a communication device (such as a terminal device or a network device).

[0075] In another implementation, the device is a chip, a chip system, a circuit, or a communication module for a communication device (such as a terminal device or a network device).

[0076] In a fifth aspect, a processor is provided for executing the method provided in the first or second aspect above.

[0077] For the operations such as sending and acquiring / receiving involved in the processor, unless otherwise specified, or if they do not conflict with their actual functions or internal logic in the relevant descriptions, they can be understood as processor output, reception, input and other operations, and can also be understood as sending and receiving operations performed by the radio frequency circuit and antenna. This application does not limit this.

[0078] Optionally, the device further includes: a memory for storing programs; accordingly, at least one processor is used to execute computer programs or instructions in the memory.

[0079] Optionally, the device further includes a communication interface, which is coupled to the processor and can be used to input information to the processor or output information from the processor.

[0080] In a sixth aspect, a computer-readable storage medium is provided, which stores a program code for execution by a device, wherein the program code includes a method for executing any possible implementation of the first aspect or the second aspect.

[0081] In a seventh aspect, a computer program product comprising instructions is provided, which, when run on a computer, enables the computer to execute the method in any possible implementation of the first or second aspect.

[0082] In an eighth aspect, a chip is provided, which includes a processor and a communication interface. The processor reads instructions on a memory through the communication interface and executes the method provided by any of the above-mentioned implementation methods of any of the above-mentioned first or second aspects.

[0083] Optionally, the chip is a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip including a modem core.

[0084] Optionally, as an implementation method, the chip also includes a memory, in which a computer program or instruction is stored, and the processor is used to execute the computer program or instruction on the memory. When the computer program or instruction is executed, the processor is used to execute the method provided in any one of the above implementation methods of any aspect of the first or second aspect.

[0085] In a ninth aspect, a computer program product comprising instructions is provided, which, when run on a computer, enables the computer to execute the method provided by any one of the above-mentioned implementations of the first aspect.

[0086] In a tenth aspect, a communication system is provided, comprising the aforementioned terminal device and network device. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] FIG1 is a schematic diagram of a wireless communication system applicable to an embodiment of the present application.

[0088] FIG2 is another schematic diagram of a wireless communication system applicable to an embodiment of the present application.

[0089] FIG3 is a schematic diagram of a hybrid beamforming (HBF) architecture on a network device side.

[0090] FIG4 is a schematic diagram of a terminal device to be scheduled.

[0091] FIG5 is a schematic diagram of a communication method 500 provided in an embodiment of the present application.

[0092] FIG6 is a schematic diagram of a communication device 600 provided in an embodiment of the present application.

[0093] FIG7 is a schematic diagram of another communication device 700 provided in an embodiment of the present application.

[0094] FIG8 is a schematic diagram of a chip system 800 provided in an embodiment of the present application. DETAILED DESCRIPTION

[0095] The technical solution in this application will be described below with reference to the accompanying drawings.

[0096] The technical solutions provided in this application can be applied to various communication systems, such as: fifth generation (5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. The technical solutions provided in this application can also be applied to future communication systems, such as sixth generation (6G) mobile communication systems. The technical solutions provided in this application can also be applied to device to device (D2D) communication, vehicle-to-everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and Internet of Things (IoT) communication systems. The technical solutions provided in this application can also be applied to low-frequency scenarios, high-frequency scenarios, terahertz, etc.

[0097] The technical solution provided in this application can also be applied to non-terrestrial communication network (NTN) systems such as intersatellite communication and satellite communication. As an example, a satellite communication system includes a satellite base station and a terminal device. The satellite base station provides communication services for the terminal device. The satellite base station can also communicate with the base station. A satellite can be used as a base station or as a terminal device. Among them, a satellite can refer to a drone, a hot air balloon, a low-orbit satellite, a medium-orbit satellite, a high-orbit satellite, etc. A satellite can also refer to a non-ground base station or non-ground equipment, etc.

[0098] A device in a communication system can send signals to or receive signals from another device. These signals may include information, signaling, or data. The term "device" can also be replaced by an entity, network entity, network element, communication device, communication module, node, communication node, and the like. This disclosure uses devices as examples for description. For example, a communication system may include at least one terminal device and at least one network device. A network device can send downlink signals to a terminal device, and / or a terminal device can send uplink signals to a network device.

[0099] The terminal device in the embodiment of the present application can be a device or module that is connected to the above-mentioned communication system and has corresponding communication functions. The terminal device may include various devices with wireless communication functions, which can be used to connect people, objects, machines, etc. The terminal device can be widely used in various scenarios, such as: cellular communication, D2D, V2X, peer to peer (P2P), M2M, MTC, IoT, virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city drones, robots, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery and other scenarios. The terminal device can be a terminal in any of the above scenarios, such as an MTC terminal, an IoT terminal, etc. The terminal device may be a user equipment (UE) of the 3rd Generation Partnership Project (3GPP) standard, a terminal, a fixed device, a mobile station device or a mobile device, a subscriber unit, a handheld device, an in-vehicle device, a wearable device, a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a wireless data card, a personal digital assistant (PDA), a computer, a tablet computer, a notebook computer, a wireless modem, a handheld device, a laptop computer, a computer with wireless transceiver capabilities, a smart book, a vehicle, a satellite, a global positioning system (GPS) device, a target tracking device, an aircraft (such as a drone, a helicopter, a multicopter, a quadcopter, or an airplane), a ship, a remote control device, a smart home device, an industrial device, a transport vehicle with wireless communication capabilities, a communication module, a road side unit with terminal functions, or a similar device. Unit, RSU), or a device built into the above device (for example, a communication module, modem or chip in the above device), or other processing devices connected to the wireless modem. For the sake of convenience, the terminal device will be described below as a terminal or UE.

[0100] It should be understood that in some scenarios, a UE can also be used to act as a base station. For example, a UE can act as a scheduling entity that provides sidelink signals between UEs in scenarios such as V2X, D2D, or P2P.

[0101] In the embodiment of the present application, the device for realizing the function of the terminal device, that is, the terminal device, can be a terminal device, or a device that can support the terminal device to realize the function, such as a chip system or a chip or a circuit or a communication module (that is, a communication module that performs a communication function), which can be installed in the terminal device. In the embodiment of the present application, the chip system can be composed of a chip, or it can include a chip and other discrete devices. In addition, the device can also be configured with program instructions for executing the corresponding communication function.

[0102] The network device in the embodiments of the present application may be a device or module having corresponding communication functions. The network device may be a device for communicating with a terminal device. The network device may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. Base station can broadly cover various names as follows, or replace the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point, master station, auxiliary station, multi-standard wireless (motor slide retainer, MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station can also refer to a communication module, modem or chip used to be set in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs base station functions in D2D, V2X, and M2M communications, a network-side device in a 6G network, or a device that performs base station functions in future communication systems. The base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the network equipment.

[0103] Base stations 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 based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0104] In some deployments, the network devices mentioned in the embodiments of the present application may include a CU, a DU, or both a CU and a DU, or a control plane CU node (central unit-control plane (CU-CP)), a user plane CU node (central unit-user plane (CU-UP)), and a DU node. For example, the network devices may include a gNB-CU-CP, a gNB-CU-UP, and a gNB-DU.

[0105] In some deployments, multiple RAN nodes collaborate to assist terminals in achieving wireless access, with different RAN nodes implementing portions of the base station's functionality. For example, a RAN node can be a CU, DU, CU-CP, CU-UP, or a radio unit (RU). The CU and DU can be separate or included in the same network element, such as a BBU. The RU can be included in a radio frequency device or radio unit, such as an RRU, AAU, or RRH.

[0106] In some deployments, the CU is a logical node that carries the radio resource control (RRC), service data adaptation protocol (SDAP), packet data convergence protocol (PDCP), and other control functions of access network equipment. The CU connects to network nodes, such as the core network, via interfaces, such as the E2 interface. Optionally, the CU performs some core network functions. The CU (e.g., the PDCP layer and higher layers) connects to the DU (e.g., the radio link control (RLC) layer and lower layers) via interfaces, such as the F1 interface. In some examples, these interfaces (e.g., the F1 interface) can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). The F1 application protocol (F1AP) is the application protocol for the F1 interface and, in some examples, defines the F1 signaling procedures. The F1 interface supports the control plane (F1 control plane, F1-C) and the user plane (F1 user plane, F1-U).

[0107] In some deployments, the CU can be split into CU-CP and CU-UP. The CU-CP is a logical node that carries the RRC layer and the control plane (control plane part of PDCP, PDCP-C) layer of PDCP, and is used to implement the control plane function of the CU. The CU-CP can interact with the network elements in the core network for implementing the control plane function. The network elements in the core network for implementing the control plane function may be access and mobility function network elements. The CU-UP is a logical node that carries the SDAP layer and the user plane (user plane part of PDCP, PDCP-U) layer of PDCP, and is used to implement the user plane function of the CU. The CU-UP can interact with the network elements in the core network for implementing the user plane function. The network elements in the core network for implementing the user plane function. The above configuration of CU and DU is only an example, and the functions of CU and DU can also be configured as needed. For example, the CU or DU can be configured to have the functions of more protocol layers, or the CU or DU can be configured to have partial processing functions of the protocol layer. For example, some functions of the RLC layer and the functions of the protocol layers above the RLC layer are placed in the CU, while the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are placed in the DU. For another example, the functions of the CU or DU can be divided according to service type or other system requirements. For example, according to latency, functions that need to meet a smaller latency requirement are placed in the DU, while functions that do not need to meet this latency requirement are placed in the CU.

[0108] In some deployments, the DU is a logical node that carries the RLC layer, the medium access control (MAC) layer, the higher physical layer (Higher PHY) layer, and other functions. In some examples, the DU can control at least one RU. The DU is connected to the RU through some interfaces, which can be fronthaul interfaces. In some examples, the Higher PHY layer includes parts of the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, and other processing functions.

[0109] In some deployments, the RU is a logical node that carries the lower physical layer (Lower PHY) and radio frequency (RF) processing. In some examples, the RU can be a TRP or RRH or other entity with similar functions. In some examples, Low-PHY includes part of the PHY processing, such as fast Fourier transform (FFT), inverse fast Fourier transform (IFFT), digital beamforming and filtering, and other processing functions. The RU communicates with one or more UEs over a wireless link.

[0110] The DU and RU may or may not be co-located. The DU and RU exchange control plane information and user plane information via the lower-layer split CUS-Plane (LLS-CUS) interface over the fronthaul link. The LLS-CUS may include interfaces and interfaces that provide the control plane and user plane, respectively. In some examples, the control plane refers to real-time control between the DU and RU. The DU and RU have an interface on the fronthaul link (such as the so-called LLS-M interface) to exchange management information, and the management plane (M-Plane) refers to non-real-time management operations between the DU and RU.

[0111] The DU and RU can work together to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of the DU and RU can be configured in various ways according to the design. For example, the DU is configured to implement the baseband function, and the RU is configured to implement the mid-RF function. For another example, the DU is configured to implement the high-layer functions in the PHY layer, and the RU is configured to implement the low-layer functions in the PHY layer or to implement the low-layer functions and the RF functions. The high-layer functions in the physical layer may include a part of the functions of the physical layer, which is closer to the MAC layer, and the low-layer functions in the physical layer may include another part of the functions of the physical layer, which is closer to the mid-RF side.

[0112] In one possible design, the processing unit for implementing baseband functions in the BBU is called a baseband high layer (BBH) unit, and the processing unit for implementing baseband functions in the RRU / AAU / RRH is called a baseband low layer (BBL) unit.

[0113] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, the radio access network may also be an open radio access network (O-RAN) architecture. In the O-RAN system, CU may also be called open CU (openCU, O-CU), DU may also be called open DU (open DU, O-DU), CU-CP may also be called open (open CU-CP, O-CU-CP), CU-UP may also be called open (open CU-UP, O-CU-UP), and RU may also be called open RU (openRU, O-RU). Any unit of CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0114] In the embodiment of the present application, the device for realizing the function of the network device may be a network device, or a device capable of supporting the network device to realize the function, such as a chip system or a chip or a circuit or a communication module (i.e., a communication module that performs a communication function), and the device may be installed in the network device. In the embodiment of the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices. In addition, program instructions for performing corresponding communication functions may also be configured in the device. In the embodiment of the present application, only the device for realizing the function of the network device is used as an example for explanation, and the solution of the embodiment of the present application is not limited.

[0115] Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons and satellites in the air. The embodiments of this application do not limit the scenarios in which network devices and terminal devices are located. In addition, terminal devices and network devices can be hardware devices, or they can be software functions running on dedicated hardware, software functions running on general-purpose hardware, such as virtualization functions instantiated on a platform (e.g., a cloud platform), or entities including dedicated or general-purpose hardware devices and software functions. This application does not limit the specific forms of terminal devices and network devices.

[0116] First, a communication system applicable to the embodiments of the present application is briefly introduced as follows.

[0117] Refer to FIG1 , which is a schematic diagram of a wireless communication system applicable to an embodiment of the present application.

[0118] As shown in Figure 1, the wireless communication system includes a radio access network 100. Radio access network 100 can be a next-generation (e.g., 6G or higher) radio access network, or a traditional (e.g., 5G, 4G, 3G, or 2G) radio access network. One or more terminal devices (120a-120j, collectively referred to as 12) can be connected to each other or to one or more network devices (110a, 110b, collectively referred to as 110) in radio access network 100. Network elements in the wireless communication system are connected via interfaces (e.g., NG, Xn), or air interfaces.

[0119] FIG1 is only a schematic diagram, and the wireless communication system may further include other devices, such as core network (CN) devices, wireless relay devices and / or wireless backhaul devices, which are not shown in FIG1 .

[0120] Refer to FIG. 2 , which is another schematic diagram of a wireless communication system applicable to an embodiment of the present application.

[0121] As shown in Figure 2, the wireless communication system may include core network equipment, access network equipment (such as RAN), and terminal equipment. The access network equipment communicates with the core network equipment via a backhaul link and communicates with the terminal equipment via an air interface. For example, the BBU in the access network equipment communicates with the core network via a backhaul link, and the RU in the access network equipment communicates with the terminal equipment via an air interface. The BBU can communicate with the RU via a fronthaul link, and the BBU and RU may or may not be co-located. In some deployments, the BBU includes at least one CU and at least one DU, and the CU and DU can communicate with each other via a midhaul link.

[0122] FIG2 is only a schematic diagram. The wireless communication system may also include other devices which are not shown in FIG2 .

[0123] In order to facilitate a better understanding of the technical solution of this application, some related technologies involved in the technical solution of this application are introduced.

[0124] 1. Beam: A communication resource. Different beams can be considered different resources. Different beams can send the same or different information.

[0125] The NR protocol uses a beam as a spatial domain filter, also known as a spatial filter or spatial parameter. The beam used to send signals is called a transmission beam (Tx beam), and the beam used to receive signals is called a reception beam (Rx beam).

[0126] The transmit beam may refer to the distribution of signal strength in different directions in space after the signal is transmitted by the antenna, and the receive beam may refer to the distribution of signal strength in different directions in space of the wireless signal received from the antenna.

[0127] Furthermore, the beam can be a wide beam, a narrow beam, or other types of beams. The beam forming technology can be beamforming technology or other technologies. The beamforming technology can specifically be digital beamforming technology, analog beamforming technology, or hybrid digital / analog beamforming technology.

[0128] A beam can correspond to one or more antenna ports, which are used to transmit data channels, control channels, and sounding signals. The one or more antenna ports corresponding to a beam can also be regarded as an antenna port set.

[0129] In this application, beam can be replaced by spatial filter, spatial filter, spatial parameter, spatial parameter, spatial setting, spatial setting, quasi-co-location (QCL) information, QCL assumption, QCL indication, transmission configuration indicator (TCI) state (TCI-state or TCIstate), spatial relationship, etc. The above terms are also equivalent to each other. Beam can also be replaced by other terms representing beams, which are not limited in this application.

[0130] 2. Reference signal (RS): This signal can also be called a pilot, reference sequence, or base signal. For consistency, the following description uses the term "reference signal." Reference signals can be used for measurements such as channel measurement or estimation.

[0131] The channel measurement involved in this application also includes beam measurement, that is, obtaining beam quality information by measuring the reference signal. As an example, the parameters used to measure the beam quality include at least one of the following: reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), signal-to-noise ratio (SNR), signal to interference plus noise ratio (SINR) (or simply referred to as signal-to-interference ratio). In the embodiments of the present application, for the convenience of explanation, unless otherwise specified, the channel measurement involved can be regarded as beam measurement.

[0132] The reference signals involved in this application may, as examples, be any of the following: channel state information reference signal (CSI-RS), synchronization signal block (SSB), sounding reference signal (SRS), user equipment specific reference signal (US-RS), demodulation reference signal (DMRS), phase tracking reference signal (PT-RS), cell reference signal (CRS), etc. It should be understood that the reference signals listed above are only examples and should not constitute any limitation to this application. This application does not exclude the possibility of defining other reference signals in future protocols to achieve the same or similar functions.

[0133] 3. Reference signal resources: These can be used to configure the transmission properties of reference signals, such as time-frequency resource locations, port mappings, power factors, and scrambling codes. Transmitters can send reference signals based on reference signal resources, and receivers can receive reference signals based on reference signal resources.

[0134] In order to distinguish different reference signal resources, each reference signal resource may correspond to a reference signal resource identifier (or reference signal resource indication, or reference signal resource indicator), for example, a CSI-RS resource identifier (or CSI-RS resource indicator (CSI-RS resource indicator, CRI)), an SSB resource identifier (SSB resource indicator (SSB resource indicator, SSBRI)), or an SRS resource identifier (or SRS resource indicator (SRS resource indicator, SRI)).

[0135] In the embodiments of the present application, reference signal resource identifiers (identifier / indication / identity / identification, ID) are mentioned many times, such as MM R Reference signal resource identifier, M R It is understood that the reference signal resource identifier can be replaced by: reference signal resource indication, or reference signal resource indicator, or reference signal resource index, which is not limited. For the sake of uniformity of description, the reference signal resource identifier is mainly used as an example for explanation.

[0136] In the embodiments of this application, reference signal quality and reference signal resource quality are sometimes used interchangeably, and those skilled in the art should understand their meanings. Reference signal resource quality can be understood as the quality of a reference signal received based on a reference signal resource, or the quality of a signal received and measured based on the reference signal resource.

[0137] 4. Channel information: refers to information that can reflect channel characteristics and channel quality.

[0138] As an example, the channel information is at least one of the following: channel state information (CSI), channel time-varying information, or channel frequency offset information. The following description mainly uses CSI as an example of channel information. It is understood that any information that can reflect channel characteristics and channel quality is applicable to the embodiments of the present application.

[0139] Taking the example of the network side obtaining downlink CSI through uplink feedback from the terminal device, specifically, the network side sends a downlink reference signal to the terminal device, and the terminal device receives the downlink reference signal; since the terminal device knows the sending information of the downlink reference signal, the terminal device can estimate (or measure) the downlink channel experienced by the downlink reference signal based on the received downlink reference signal, and then the terminal device can obtain the downlink channel matrix based on the measurement to generate CSI, and feed back the CSI to the network side.

[0140] As an example, CSI includes at least one of the following: channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), CSI-RS resource indicator (CRI), layer indicator (LI), reference signal receiving power (RSRP), or signal to interference plus noise ratio (SINR). The signal to interference plus noise ratio may also be referred to as the signal to interference plus noise ratio.

[0141] Utilizing more spectrum resources is a key means of improving wireless channel capabilities, and the 6G frequency band is the next spectrum resource available for wireless communications. Because higher frequency bands increase signal energy transmission loss over the same transmission distance, network equipment typically employs larger antenna arrays to weight the transmitted signal, achieving higher array gain and thus increasing signal transmission energy. To reduce implementation costs, large-scale antenna arrays on network equipment typically employ a HBF architecture, where a single digital channel drives multiple antenna elements through multiple phase shifters. Downlink signal transmission on the network equipment typically utilizes both analog and digital weighting.

[0142] Refer to Figure 3, which is a schematic diagram of the HBF architecture on the network device side. As shown in Figure 3, under the HBF architecture, network equipment usually uses multiple analog beams to achieve coverage of different areas within the cell, and different analog beams can cover terminal devices in different areas. Considering the mid- and low-frequency bands, the channel environment is rich in multipath, and the same terminal device can be served by different analog beams. That is, in addition to the optimal analog beam seen by the terminal device, other non-optimal analog beams can also provide data transmission for the terminal device at a lower rate. When there are multiple terminal devices to be scheduled in the cell, in order to enable simultaneous transmission under resource multiplexing of multiple terminal devices in the cell, the terminal device can measure the channel state information under multiple analog beams, thereby providing input for the data scheduling decision of the network device.

[0143] Specifically, the channel state information reporting configuration includes one or more reference signal resource sets, each reference signal resource set includes one or more reference signal resources, and each reference signal resource includes one or more reference signal ports, wherein, for the HBF architecture, different analog beams are associated with different reference signal resources. When the transmission signals of multiple reference signal resources included in the same reference signal resource set all come from the same network device (such as TRP), the current protocol only supports the terminal device to select a certain reference signal resource from them to report the channel state information to the network device side. Through the CRI reporting value, the network device is informed of a certain reference signal resource associated with the currently reported CSI information. Among them, the terminal device independently decides which reference signal resource to select for CSI reporting.

[0144] However, considering the real-time business and terminal device scheduling requirements of the existing network, the set of terminal devices to be scheduled in the network and the amount of business to be scheduled for each terminal device at different times are dynamically variable, and the simulated beam set that needs to be measured for each terminal device may be different.

[0145] See Figure 4, which is a schematic diagram of terminal devices to be scheduled. As shown in Figure 4 (a), at a time (e.g., time T1), only UE1 and UE2 have services to be scheduled. UE2 can prioritize measuring Beams 1 and 2. As shown in Figure 4 (b), at a time (e.g., time T2), only UE2, UE3, and UE4 have services to be scheduled. UE2 can prioritize measuring Beams 2 and 3.

[0146] However, based on existing protocols, network equipment can configure multiple reference signal resources for channel state information measurement for terminal devices. Specifically, different analog beams can be configured as different reference signal resources, and the terminal device independently decides which reference signal resource to report channel state information for. In this case, because the terminal device cannot perceive the pending scheduling information of other terminal devices in the cell, the selected analog beams for reporting are generally the top P optimal ones based on channel quality. The value of P may depend on the measurement capabilities of the terminal device.

[0147] In view of this, the present application proposes that the network equipment side can indicate the priority information of the reference signal resources to the terminal device based on the actual communication situation, such as the real-time services of the existing network and the scheduling requirements of the terminal device, so that the terminal device can measure and report based on the priority information of the reference signal resources, and realize that the network equipment side assists (or guides) the terminal device to select appropriate one or more channel state information for reporting.

[0148] Before introducing the solution of this application, the following points are explained.

[0149] (1) In this application, “indication” may include direct indication, indirect indication, explicit indication, and implicit indication. When describing that a certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0150] In this application, the information indicated by the indication information is referred to as the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved with the help of the arrangement order of each information agreed in advance (for example, stipulated by the protocol), thereby reducing the indication overhead to a certain extent. In addition, the information to be indicated can be sent together as a whole, or it can be divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different.

[0151] (2) In this application, "sending" and "receiving" indicate the direction of signal transmission. For example, "sending information to XX" can be understood as the destination of the information being XX, which can include direct sending through the air interface, and also include indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as the source of the information being YY, which can include direct receiving from YY through the air interface, and also include indirect receiving from YY through the air interface from other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface. In other words, sending and receiving can be carried out between devices, for example, between a network device and a terminal device, or can be carried out within a device, for example, sending or receiving between components, modules, chips, software modules or hardware modules within the device through a bus, a line or an interface.

[0152] (3) In the various embodiments of this application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0153] (4) In this application, the terms "first," "second," "#1," "#2," "#n1," "#n2," etc., are used for convenience of description only and are not intended to limit the scope of the embodiments of this application. They are not intended to describe the order or precedence of features. It should be understood that such terms may be interchangeable, where appropriate, to describe solutions other than the embodiments of this application.

[0154] (5) In this application, “predefined” may mean predefined by a standard protocol, or may also mean pre-agreed or pre-negotiated between devices.

[0155] (6) In this application, words such as "exemplarily" and "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described in this application as an "example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the word "example" is intended to present concepts in a concrete way. In the embodiments of this application, "of", "corresponding, relevant" and "corresponding" are sometimes used interchangeably. It should be noted that when the distinction between them is not emphasized, the meanings they intend to express are consistent.

[0156] The method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings. The embodiment provided by the present application can be applied to the communication system shown in FIG1 above without limitation.

[0157] In the following embodiments, terminal devices and network devices are used as examples for illustrative description. The terminal device can be replaced by a component of the terminal device (such as a chip or a chip system or circuit), and the network device can be replaced by a component of the network device (such as a chip or a chip system or circuit).

[0158] Referring to Figure 5, Figure 5 is a schematic diagram of a communication method 500 provided in an embodiment of the present application. The method 500 shown in Figure 5 may include the following steps.

[0159] 510. The terminal device receives the first indication information. Correspondingly, the network device sends the first indication information.

[0160] The first indication information indicates the priority of the N reference signal resources, where N is an integer greater than 1. The N reference signal resources may represent reference signal resources used for measurement, such as reference signal resources configured for measurement by a network device. The measurement may be a channel measurement, or beam measurement. In the following embodiments, channel measurement is used for ease of description and distinction.

[0161] As an example, the first indication information indicates the priorities of N reference signal resources, including the following situations.

[0162] In a first possible scenario, the first indication information indicates a high-priority reference signal resource among N reference signal resources.

[0163] For example, the network device configures N reference signal resources and indicates a high-priority reference signal resource among the N reference signal resources through the first indication information. Further, as an example, the remaining reference signal resources may be defaulted to low-priority reference signal resources.

[0164] In a second possible scenario, the first indication information indicates a low-priority reference signal resource among the N reference signal resources.

[0165] For example, the network device configures N reference signal resources and indicates low-priority reference signal resources among the N reference signal resources through first indication information. Further, as an example, the remaining reference signal resources may be defaulted to high-priority reference signal resources.

[0166] In a third possible scenario, the first indication information indicates a priority ranking of N reference signal resources.

[0167] For example, the network device configures N reference signal resources and indicates the priority order of the N reference signal resources through first indication information.

[0168] The specific implementation of the first indication information will be described in detail later.

[0169] In the embodiments of the present application, high-priority reference signal resources and low-priority reference signal resources are mentioned many times, which can be a relative concept. For example, some of the N reference signal resources are high-priority reference signal resources, then the remaining reference signal resources can be low-priority reference signal resources. High-priority reference signal resources can represent reference signal resources that the network device expects the terminal device to prioritize measurement or report measurement results (such as CSI). Therefore, in the embodiments of the present application, high-priority reference signal resources can also be replaced by any of the following: reference signal resources that the network device expects the terminal device to prioritize measurement or report measurement results (such as CSI), reference signal resources that the network device configures to report measurement results (such as CSI), and reference signal resources that the network device indicates to report measurement results (such as CSI). As an example, high-priority reference signal resources and low-priority reference signal resources can be determined based on actual communication conditions, such as real-time services and / or user scheduling requirements. Taking the example shown in Figure 4 as an example, at time T1, for UE2, high-priority reference signal resources may include reference signal resources corresponding to beams 1 and 2; low-priority reference signal resources may include reference signal resources corresponding to beams 3 and 4. At time T2, for UE2, high-priority reference signal resources may include reference signal resources corresponding to beams 2 and 3; low-priority reference signal resources may include reference signal resources corresponding to beams 1 and 4.

[0170] 520. The terminal device receives a reference signal through N reference signal resources.

[0171] The terminal device may perform reception measurements on the corresponding reference signal resources (i.e., N reference signal resources) based on the reference signal resources configured by the network device. In other words, the terminal device performs measurements using the reference signals received on the N reference signal resources. In step 520, the terminal device may receive multiple reference signals.

[0172] The reference signal is a downlink reference signal. For example, the reference signal is a CSI-RS, and accordingly, the reference signal resource is a CSI-RS resource. For another example, the reference signal is an SSB, and accordingly, the reference signal resource is an SSB resource.

[0173] At 530, the terminal device measures at least one of the N reference signal resources based on the priorities of the N reference signal resources to obtain M pieces of channel state information. In other words, the terminal device obtains the M pieces of channel state information by measuring (e.g., performing channel measurement) a reference signal received on at least one of the N reference signal resources.

[0174] Wherein, M is an integer greater than or equal to 1. As an example, M is greater than or equal to the number of high-priority reference signal resources in the N reference signal resources.

[0175] Optionally, the M channel state information are obtained by performing channel measurement based on reference signals on X reference signal resources among the N reference signal resources. X is an integer greater than 0 and less than or equal to N. As an example, X is greater than or equal to the number of high-priority reference signal resources among the N reference signal resources.

[0176] As an example, X=M. Based on this, one piece of channel state information can be obtained by performing channel measurement based on a reference signal on one reference signal resource. Therefore, M pieces of channel state information are obtained by performing channel measurement based on reference signals on M reference signal resources out of N reference signal resources. In this case, M is less than or equal to N.

[0177] It is understood that one channel state information may include measurement results corresponding to multiple reference signal resources, or the measurement result corresponding to one reference signal resource may be included in multiple channel state information, without limitation. In the following embodiments, for ease of explanation, an example in which one channel state information corresponds to one reference signal resource is mainly used for illustration.

[0178] In addition, a channel state information can also be called a channel state information. Channel state information can also be called any of the following: report, measurement report, or CSI report. For more information about channel state information, please refer to the relevant description in the previous terminology explanation section and will not be repeated here.

[0179] Optionally, the M pieces of channel state information are determined based on a selection criterion. The selection criterion can be used to determine the M pieces of channel state information. Specifically, in step 530, the terminal device performs channel measurement on at least one of the N reference signal resources based on the priorities of the N reference signal resources, and combines the selection criterion to obtain the channel state information to be reported, i.e., the M pieces of channel state information. Schemes related to the selection criterion are described in detail later.

[0180] Optionally, the M channel state information are determined based on reference signal resources used for channel measurement (such as X reference signal resources) and reference signal resources used for interference measurement.

[0181] Further optionally, the method 500 further includes: the network device indicating a reference signal resource for interference measurement to the terminal device.

[0182] The association relationship between the reference signal resource used for channel measurement (referred to as reference signal resource #1 for distinction) and the reference signal resource used for interference measurement (referred to as reference signal resource #2 for distinction) includes the following possible implementations.

[0183] In a possible implementation, the association relationship between reference signal resource #1 and reference signal resource #2 is related to the type of reference signal resource #2 (or called an association).

[0184] In one example, if reference signal resource #2 is a non-zero power (NZP) reference signal resource, then there is a one-to-one correspondence between reference signal resource #1 and reference signal resource #2. For example, if the configured resource for interference measurement is an NZP CSI-RS resource, then the number of reference signal resources #1 and the number of reference signal resources #2 are the same, that is, the number of reference signal resources used for channel measurement is equal to the number of reference signal resources used for interference measurement, and one reference signal resource #1 corresponds to one reference signal resource #2. For example, based on the resource order within the resource set, the reference signal resources used for channel measurement are associated one-to-one with the reference signal resources used for interference measurement (resource-wise associated)

[0185] As another example, if reference signal resource #2 is an interference measurement (IM) reference signal resource (e.g., a zero-power reference signal resource), then there is a many-to-one relationship between reference signal resource #1 and reference signal resource #2. For example, if the configured interference measurement resource is a channel state information-interference measurement (CSI-IM) resource, then one reference signal resource for interference measurement can be configured, and multiple reference signal resources within the same resource set for channel measurement are associated with the same CSI-IM resource for interference measurement.

[0186] In another possible implementation, there is a one-to-one correspondence between reference signal resource #1 and reference signal resource #2.

[0187] For example, the number of reference signal resources used for interference measurement is equal to the number of reference signal resources used for channel measurement. Based on the resource order within the resource set, the reference signal resources used for channel measurement are associated one-to-one with the reference signal resources used for interference measurement (such as NZP CSI-RS resources and CSI-IM resources).

[0188] In another possible implementation, the relationship between reference signal resource #1 and reference signal resource #2 is many-to-one.

[0189] For example, multiple reference signal resources in the same resource set for channel measurement are associated with the same reference signal resource for interference measurement (eg, NZP CSI-RS resource, or CSI-IM resource).

[0190] 540. The terminal device sends M pieces of channel state information. Correspondingly, the network device receives M pieces of channel state information.

[0191] As an example, the M pieces of channel state information may be carried on at least one of the following: a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH).

[0192] Further optionally, the method 500 further includes: the terminal device receives configuration information, where the configuration information is configuration information reported by the channel state information.

[0193] The configuration information and the first indication information may be carried in one signaling, or may be carried in different signalings, which is not limited.

[0194] In one possible implementation method, the network device sends RRC signaling to the terminal device, and configures one or more CSI reporting configurations (CSI-ReportConfig) to the terminal device through the RRC signaling. Each CSI-ReportConfig is associated with one or more reference signal resource sets (such as CSI-RS resource sets (csi-rs-resourceSet)). A reference signal resource set contains one or more reference signal resources, which can be used for channel measurement and / or for interference measurement. Among them, the reference signal resource can be at least one of the following: NZP CSI-RS resource (NZP CSI-RSresource), zero power (zeropower, ZP) CSI-RS resource (ZP CSI-RS resource), CSI-IM resource, or SSB resource.

[0195] The following describes the embodiments of the present application in combination with several aspects. It is understood that the contents of the following aspects can be used alone or in combination, and the embodiments of the present application are not limited to this.

[0196] Aspect 1, related schemes of the first indication information.

[0197] The first indication information may indicate the priority of the reference signal resource, thereby assisting the terminal device in selecting the reported reference signal resource and the corresponding channel state information.

[0198] Optionally, the first indication information indicates one or more of the following: a value of M, the number of X reference signal resources, the number of high-priority reference signal resources among the N reference signal resources, the number of high-priority reference signal resources among the N reference signal resources, the number of low-priority reference signal resources among the N reference signal resources, the number of low-priority reference signal resources among the N reference signal resources, a priority ranking of the N reference signal resources, and a selection criterion. Several examples are described below.

[0199] Example 1: The first indication information indicates the value of M.

[0200] Based on this, the terminal device can determine the value of M based on the first indication information, and then know that M channel state information must be reported. Specifically, the network device is configured with N reference signal resources for channel measurement, and the terminal device can select M of these reference signal resources and the corresponding channel state information (i.e., the channel state information of the M reference signal resources) and report them to the network device.

[0201] In a possible implementation, the first indication information includes a value of M.

[0202] In another possible implementation, the first indication information includes a value T, which is associated with a value of M. Based on this, the value of M can be determined based on the value T and the associated relationship. As an example, the values ​​of T and M may satisfy: M = f(T), where f represents a function.

[0203] Regarding the value of M, there are two situations.

[0204] In one possible scenario, the value of M is predefined.

[0205] In another possible scenario, the value of M is configured. Optionally, the value of M is determined by the network device based on the capability information of the terminal device. For example, before step 510, method 500 further includes: the terminal device indicates the capability of the terminal device to the network device, such as the maximum amount of channel state information that the terminal device can report, and the network device determines the value of M based on the maximum amount of channel state information that the terminal device can report. Considering that the number of each reference signal resource is related to the number of reference signal resource ports, and the number of reference signal resource ports is associated with the codebook type, specifically, different codebook types can support different maximum numbers of ports. Therefore, when determining the value of M, the network device may also refer to the codebook type associated with the reference signal resource and / or the number of ports contained in each reference signal resource.

[0206] Example 2: The first indication information indicates the number of X reference signal resources, that is, the first indication information indicates the value of X.

[0207] Based on this, the terminal device can determine, based on the first indication information, to report the channel state information corresponding to multiple reference signal resources, and thereby obtain the number M of channel state information to be reported. For example, if a piece of channel state information is obtained by performing channel measurement based on a reference signal on a reference signal resource, then the terminal device can determine M based on X indicated by the first indication information, i.e., M=X.

[0208] In a possible implementation, the first indication information includes a value of X.

[0209] In another possible implementation, the first indication information includes a value W, which is associated with the value of X. Based on this, the value of W can be determined based on the value W and the associated relationship. As an example, the values ​​of W and X can satisfy: X = g(W), where g represents a function.

[0210] Example 3: The first indication information indicates the number of high-priority reference signal resources among N reference signal resources.

[0211] Regarding the number of high-priority reference signal resources, the following two situations may be included.

[0212] In one possible scenario, the number of high-priority reference signal resources is predefined. For example, different values ​​of N correspond to different numbers of high-priority reference signal resources. For another example, regardless of the value of N, the number of high-priority reference signal resources is fixed.

[0213] In another possible scenario, the number of high-priority reference signal resources is configured. Optionally, the number of high-priority reference signal resources is determined by the network device based on at least one of the following: the maximum number of reference signal resources for channel measurement contained in a single channel state information reporting configuration, the maximum number of reference signal resources for channel measurement contained in a single reference signal resource set. Considering that the number of each reference signal resource is related to the number of reference signal resource ports, and the number of reference signal resource ports is associated with the codebook type, specifically, different codebook types have different maximum numbers of ports that can be supported. Therefore, the number of high-priority reference signal resources is determined by the network device based on at least one of the above items, which can be understood as: the number of high-priority reference signal resources is determined by the network device based on the codebook type. In other words, the number of high-priority reference signal resources is related to the codebook type.

[0214] In addition, as an example, if the codebook type associated with the reference signal resource is a single antenna panel (single panel) type one (type I) codebook (or type I-Single Panel codebook), the value of the number of high-priority reference signal resources is 1 or 2; if the codebook type associated with the reference signal resource is a type two (type II) codebook, the value of the number of high-priority reference signal resources is 1.

[0215] Similar to the implementation of M in Example 1, the first indication information may directly include the number of high-priority reference signal resources; or may also include other parameters (such as the number of low-priority reference signal resources, or the index, identifier, or indicator of the high-priority reference signal resource), and the number of high-priority reference signal resources is determined based on the other parameters. This is not described in detail here.

[0216] In a possible implementation, a value of the first indication information (or the number of bits occupied by the first indication information) is associated with the number of high-priority reference signal resources among the N reference signal resources.

[0217] The association between the value of the first indication information (or the number of bits occupied by the first indication information) and the number of high-priority reference signal resources in the N reference signal resources can be stored or transmitted in the form of a table, a function, text, or a string. Taking a table as an example, for example, the association between the value of the first indication information and the number of high-priority reference signal resources in the N reference signal resources can be shown in Table 1 and Table 2.

[0218] Table 1

[0219] Table 2

[0220] Assume N = 4. As shown in Table 1, if one of the four reference signal resources is a high-priority reference signal resource, 2 bits can be used to represent one of the four reference signal resources. Based on the 2 bits of first indication information, it can be determined that there is one high-priority reference signal resource. As shown in Table 2, if two high-priority reference signal resources are indicated, 3 bits can be used to represent a combination of two of the four reference signal resources. Based on the 3 bits of first indication information, it can be determined that there are two high-priority reference signal resources. And so on.

[0221] As can be seen from the above, based on this method, the corresponding high-priority reference signal resources can also be obtained. As shown in Table 1, if the value of the first indication information is "00", it means that one high-priority reference signal resource is the first-ranked pilot resource resource#n1 in the pilot resource set; if the value of the first indication information is "01", it means that one high-priority reference signal resource is the second-ranked pilot resource resource#n2 in the pilot resource set; and so on. As shown in Table 2, if the value of the first indication information is "001", it means that two high-priority reference signal resources are resource#n1 and resource#n3; if the value of the first indication information is "010", it means that one high-priority reference signal resource is resource#n1 and resource#n4; and so on.

[0222] Example 4: The first indication information indicates the number of low-priority reference signal resources among N reference signal resources.

[0223] Similar to the implementation of M in Example 1, the first indication information may directly include the number of low-priority reference signal resources; or may also include other parameters (such as the number of high-priority reference signal resources, or the index, identifier, or indicator of the low-priority reference signal resources), and the number of low-priority reference signal resources is determined based on the other parameters. This is not described in detail here.

[0224] Example 4 is similar to Example 3. For specific implementation, refer to the description in Example 3 and are not further described here. Furthermore, in Example 3, the number of low-priority reference signal resources can also be determined by the number of high-priority reference signal resources among the N reference signal resources. Similarly, in Example 4, the number of high-priority reference signal resources can also be determined by the number of low-priority reference signal resources among the N reference signal resources.

[0225] Example 5: The first indication information indicates a high-priority reference signal resource among N reference signal resources.

[0226] In a first possible implementation method, the first indication information includes at least one of the following: an identifier of a high-priority reference signal resource (or an indicator of a high-priority reference signal resource, such as CRI), an identifier of a resource set of high-priority reference signal resources (or an indicator of a resource set of high-priority reference signal resources).

[0227] In a second possible implementation manner, the first indication information is a bitmap. In other words, the high-priority reference signal resource is indicated by a bitmap.

[0228] Specifically, each bit corresponds to a reference signal resource. A first value for the bit indicates that the reference signal resource is a high-priority reference signal resource, and a second value for the bit indicates that the reference signal resource is a low-priority reference signal resource. The first value and the second value are different, for example, the first value is "0" and the second value is "1," or the first value is "1" and the second value is "0."

[0229] For example, the bitmap is represented as {X0, X1…X(N-1)}, where each bit corresponds to a reference signal resource. Assuming that the bit value is "1", it indicates that the corresponding reference signal resource is a high-priority reference signal resource, and the bit value is "0", it indicates that the corresponding reference signal resource is a low-priority reference signal resource.

[0230] The association relationship between the bits and the reference signal resources may be predefined or indicated, and is not limited thereto.

[0231] For example, the bitmap corresponds from left to right to the reference signal resource identity (or reference signal resource indicator, such as CRI) from small to large, or corresponds to the reference signal resources in the reference signal resource list from front to back. In other words, the lower-order bits correspond to the reference signal resources at the front of the reference signal resource list, and the higher-order bits correspond to the reference signal resources at the back of the reference signal resource list.

[0232] For another example, the bitmap corresponds from left to right to the reference signal resource identities (or reference signal resource indicators, such as CRIs) from largest to smallest, or to the reference signal resources in the reference signal resource list from back to front. In other words, the lower-order bits correspond to the reference signal resources at the back of the reference signal resource list, and the higher-order bits correspond to the reference signal resources at the front of the reference signal resource list.

[0233] For another example, the bit mapping corresponds to the reference signal resource identity (or reference signal resource indicator, such as CRI) from large to small from left to right, the low-order bit corresponds to the reference signal resource with the smallest identifier in the reference signal resource list (or the reference signal resource with the smallest reference signal resource indicator (such as CRI) in the reference signal resource list), and the high-order bit corresponds to the reference signal resource with the largest identifier in the reference signal resource list (or the reference signal resource with the largest reference signal resource indicator (such as CRI) in the reference signal resource list).

[0234] The example listed above is only an example, and the specific bit information used to represent the priority of different reference signal resources is not limited in the embodiments of the present application.

[0235] The association between the bitmap value and the high-priority reference signal resource can be stored or transmitted in the form of a table, a function, a text, or a string. Taking a table as an example, the association between the bitmap value and the high-priority reference signal resource can be shown in Table 3.

[0236] Table 3

[0237] Assuming N is 4, the four reference signal resources in the reference signal resource list are, from front to back, {resource#n1, resource#n3, resource#n4, resource#n2}. The lower-order bits correspond to the reference signal resources at the front of the reference signal resource list, and the higher-order bits correspond to the reference signal resources at the back of the reference signal resource list. As shown in Table 3, if the value of the first indication information (i.e., the value of the bitmap) is "0001," it indicates that the first reference signal resource in the reference signal resource list is a high-priority reference signal resource, i.e., resource#n1 is a high-priority reference signal resource; if the value of the first indication information is "0010," it indicates that the second reference signal resource in the reference signal resource list is a high-priority reference signal resource, i.e., resource#n2 is a high-priority reference signal resource; and so on.

[0238] In a third possible implementation, a value of the first indication information is associated with a high-priority reference signal resource among the N reference signal resources. Specifically, the value of the first indication information indicates one or more high-priority reference signal resources, and the value of the first indication information is associated with a reference signal resource group (or reference signal resource combination).

[0239] The association between the value of the first indication information and the high-priority reference signal resource among the N reference signal resources can be stored or transmitted in the form of a table, a function, text, or a string. Taking a table as an example, for example, the association between the value of the first indication information and the high-priority reference signal resource among the N reference signal resources can be as shown in Tables 4 to 6. The following describes several examples using several scenarios.

[0240] In one possible scenario, N=4, and there is one high-priority reference signal resource among the N reference signal resources.

[0241] In this case, a 2-bit representation can be used to indicate that the high-priority reference signal resource is one of the four reference signal resources. Taking Table 4 as an example, if the value of the first indication information is "00", it indicates that the high-priority reference signal resource is resource#n1; if the value of the first indication information is "01", it indicates that the high-priority reference signal resource is resource#n3, and so on.

[0242] Table 4

[0243] In another possible scenario, N=4, and there are 2 high-priority reference signal resources among the N reference signal resources.

[0244] In this case, 3 bits can be used to indicate that the high-priority reference signal resources are 2 of the 4 reference signal resources. Taking Table 5 as an example, if the value of the first indication information is "001", it indicates that the high-priority reference signal resources are resource#n1 and resource#n3; if the value of the first indication information is "001", it indicates that the high-priority reference signal resources are resource#n1 and resource#n4; and so on.

[0245] Table 5

[0246] In another possible scenario, N=4, and there are 3 high-priority reference signal resources among the N reference signal resources.

[0247] In this case, 2 bits can be used to indicate that the high-priority reference signal resources are 3 of the 4 reference signal resources. Taking Table 6 as an example, if the value of the first indication information is "00", it indicates that the high-priority reference signal resources are resource#n1, resource#n3, and resource#n4; if the value of the first indication information is "01", it indicates that the high-priority reference signal resources are resource#n1, resource#n3, and resource#n2; and so on.

[0248] Table 6

[0249] Example 6: The first indication information indicates a low-priority reference signal resource among N reference signal resources.

[0250] In a first possible implementation method, the first indication information includes at least one of the following: an identifier of a low-priority reference signal resource (or an indicator of a priority reference signal resource), an identifier of a resource set of low-priority reference signal resources (or an indicator of a resource set of low-priority reference signal resources).

[0251] In a second possible implementation manner, the first indication information is a bitmap. In other words, the low-priority reference signal resource is indicated by a bitmap.

[0252] In a third possible implementation manner, a value of the first indication information is associated with a low-priority reference signal resource among the N reference signal resources.

[0253] Example 6 is similar to Example 5 and is not described in detail here. In addition, in Example 5, by obtaining the high-priority reference signal resources among the N reference signal resources, the remaining reference signal resources can also be determined to be low-priority reference signal resources. Similarly, in Example 5, by obtaining the low-priority reference signal resources among the N reference signal resources, the remaining reference signal resources can also be determined to be high-priority reference signal resources.

[0254] Example 7: The first indication information indicates the priority ranking of N reference signal resources.

[0255] Specifically, the network device is configured with N reference signal resources for channel measurement, and indicates the priority order of the N reference signal resources through the first indication information.

[0256] In a first possible implementation, the order of the N reference signal resources in the signaling (or the order in the reference signal resource list) represents the priority ranking of the N reference signal resources, such as sorting the N reference signal resources from high to low priority, or sorting the N reference signal resources from low to high priority. In this case, the first indication information may be the order of the N reference signal resources in the signaling.

[0257] In a second possible implementation manner, a value of the first indication information is associated with a priority order of reference signal resources among the N reference signal resources.

[0258] The association between the value of the first indication information and the priority ranking of the reference signal resources may be in the form of a table, a function, text, or a string, such as for storage or transmission. Taking a table as an example, for example, the association between the value of the first indication information and the priority ranking of the reference signal resources may be as shown in Table 7.

[0259] Table 7

[0260] Assume that N reference signal resources are ranked from front to back in the reference signal resource list as follows: {resource#n1, resource#n3, resource#n4, resource#n2}. As shown in Table 7, if the value of the first indication information is "11100100", the priority of the reference signal resources is as follows: resource#n1 has a higher priority than resource#n3, resource#n3 has a higher priority than resource#n4, resource#n4 has a higher priority than resource#n2, and so on.

[0261] Tables 1 to 7 above are provided for illustrative purposes only and are not intended to be limiting. For example, Tables 1 to 7 may include a greater number of resources. For another example, the high priority in Tables 1 to 6 may be replaced with a low priority. For another example, the association between bit values ​​and corresponding reference signal resources may be provided in other corresponding manners, which are not intended to be limiting.

[0262] Example 8: The first indication information indicates a selection criterion.

[0263] The selection criteria may represent the selection criteria for the reference signal resources and corresponding channel state information reported by the terminal device side, that is, how the terminal device selects M terminal device resources and corresponding channel state information from the N terminal device resources configured by the network device to report to the network device. In other words, the selection criteria may indicate (or guide) how to determine the M channel state information. The selection criteria indicated by the first indication information may include one or more.

[0264] In one possible implementation, at least one selection criterion is predefined, and the network device indicates one or more of the at least one selection criterion to the terminal device based on the first indication information. For example, the first indication information may include an index of the one or more selection criteria.

[0265] In another possible implementation, the network device configures at least one selection criterion and indicates one selection criterion to the terminal device by indicating first indication information, or indicates multiple selection criteria for the terminal device to select.

[0266] In another possible implementation, at least one selection criterion is predefined, and the terminal device can directly select one of the predefined selection criteria to determine the M channel state information. Based on this implementation, the network device does not need to indicate the selection criterion to the terminal device. In addition, in this implementation, the terminal device can report the selection criterion to the network device.

[0267] As an example, the selection criterion (or criterion, or scheme) indicated by the first indication information is any one of the following:

[0268] Criterion 1: Some reported reference signal resources are determined by the terminal device independently, and some reported beams are selected based on the reference signal resource priority specified by the network device;

[0269] Criterion 2: Based on the reference signal resource priority specified by the network device, select the reference signal resource with a high priority for reporting;

[0270] Criterion 3: The terminal device decides whether to use the reference signal resource priority specified by the network device;

[0271] Criterion 4: The criterion adopted by the terminal device for autonomous decision-making, such as selecting one from Criteria 1, Criteria 2, and Criteria 3.

[0272] Among them, in criterion 4, optionally, method 500 also includes: the terminal device sends third indication information to the network device, and the third indication information indicates the selected criterion.

[0273] In one example, the network device instructs the terminal device to report the selected criteria. For example, the network device instructs the terminal device to report the selected criteria through instruction information (such as the first instruction information or other instruction information). For example, criterion 4 can be replaced with the criteria adopted by the terminal device in its own decision-making, and the selected criteria is reported to the network device.

[0274] In another example, the terminal device proactively reports the selected criterion to the network device. For example, if the terminal device adopts criterion 4 above, or the first indication information indicates criteria 1 to 3, and the terminal device proactively selects one of criteria 1 to 3, the terminal device reports the selected criterion to the network device.

[0275] The specific use of the above criteria will be described in detail later in conjunction with aspect 2.

[0276] The above examples 1 to 8 are merely simple examples, and the embodiments of the present application are not limited thereto. For example, the above examples can be used in combination.

[0277] Optionally, the first indication information is carried in one or more of the following signaling: RRC, MAC (such as medium access control-control elements (MACCE or MAC-CE)), downlink control information (DCI). The following is a detailed description combining the two solutions.

[0278] Solution #1: the first indication information is carried in MACCE signaling.

[0279] Optionally, the MAC CE includes one or more of the following information: serving cell ID (servingcellID), bandwidth part (band width part, BWP) ID, CSI-ReportConfig, CSI report number (CSIReportNum) (that is, the value of M), selection criterion index (or simply criterion index (ruleIndex)), high priority reference signal resource number (or simply high priority resource number (highPriorityResourceNum)), reference signal resource set (such as a resource set corresponding to N reference signal resources), high priority reference signal resources, and reference signal resource priority ranking. The following briefly introduces the above information.

[0280] 1. Serving cell ID: This may indicate the identifier of the serving cell to which the MACCE applies. The number of bits occupied by the serving cell ID may be related to the maximum number of serving cells configurable by the terminal device. As an example, the maximum number of serving cells configurable by the terminal device is 32. In this case, the number of bits occupied by the serving cell ID may be 5 bits. In the embodiment of the present application, the cell ID (such as the serving cell ID) may also be replaced by any of the following: cell index, physical cell ID, or physical cell index.

[0281] 2. BWP ID: This identifies the BWP to which the MAC CE applies. The number of bits occupied by the BWP ID may be related to the value of the Bandwidth Part Indicator field in the terminal device DCI. As an example, the BWP ID occupies 2 bits.

[0282] 3. CSI-ReportConfig: may indicate the channel state information reporting configuration applicable to the MAC CE, and may be represented by a channel state information reporting configuration identifier (such as CSI-ReportConfigId) or a channel state information reporting configuration indication (CSI-ReportConfig indicator).

[0283] Among them, CSI-ReportConfigId refers to the identifier (identifier / indication / identity / identification, ID) of the channel state information reporting configuration. The number of bits occupied by CSI-ReportConfigId may be related to the maximum number of channel state information reporting configurations that can be configured per cell and per BWP of the terminal device. For example, the maximum number of periodic channel state information reporting configurations is 4, the maximum number of non-periodic channel state information reporting configurations is 4, and the maximum number of semi-static channel state information reporting configurations is 4, which occupy a total of 12 IDs. Therefore, 4 bits of information can be used to represent which channel state information reporting configuration is specifically referred to. It can be understood that if the value of the maximum number of channel state information reporting configurations changes (such as other values), the number of bits occupied by CSI-ReportConfigId may also need to be adaptively adjusted.

[0284] The CSI-ReportConfig indicator refers to the logical index of the periodic channel state information reporting configuration. For example, the periodic CSI-ReportConfig set configured by the network device for the terminal device includes {CSI-ReportConfigId#n1, CSI-ReportConfigId#n2, CSI-ReportConfigId#n3, CSI-ReportConfigId#n4}. When CSI-ReportConfig indicator = 0, it indicates the first configured CSI-ReportConfig, namely CSI-ReportConfigId#n1; when CSI-ReportConfig indicator = 1, it indicates CSI-ReportConfigId#n2, and so on. The number of bits occupied by the CSI-ReportConfig indicator may be related to the maximum number of periodic CSI-ReportConfigs that can be configured per BWP. For example, if the maximum number of periodic CSI-ReportConfigs that can be configured per BWP of a terminal device is 4, then the CSI-ReportConfig indicator can occupy 2 bits. For another example, if the maximum number of periodic CSI-ReportConfigs that can be configured per BWP of a terminal device is 8, then the CSI-ReportConfig indicator can occupy 3 bits. It is understood that if the maximum number of periodic CSI-ReportConfigs that can be configured per BWP of a terminal device changes (for example, to another value), the number of bits occupied by the CSI-ReportConfig indicator may also need to be adaptively adjusted.

[0285] 4. CSIReportNum: It indicates the number of channel state information required to be reported by the channel state information reporting configuration applicable to the MAC CE, that is, M mentioned above.

[0286] In the first possible scenario, the number of bits occupied by CSIReportNum is related to the maximum number of channel state information that can be reported by the terminal device for a single channel state information report configuration. For example, if the maximum number of channel state information that can be reported by the terminal device for a single channel state information report configuration is 4, CSIReportNum occupies 2 bits. For example, the value of the 2 bits is "00", which means that it is necessary to select the channel state information report of 1 reference signal resource, that is, M=1; the value of the 2 bits is "01", which means that it is necessary to select the channel state information report of 2 reference signal resources, that is, M=2; the value of the 2 bits is "10", which means that it is necessary to select the channel state information report of 3 reference signal resources, that is, M=3; the value of the 2 bits is "11", which means that it is necessary to select the channel state information report of 4 reference signal resources, that is, M=4. For another example, 0 indicates that the channel state information of 1 reference signal resource needs to be reported; 1 indicates that the channel state information of 2 reference signal resources needs to be reported; 2 indicates that the channel state information of 3 reference signal resources needs to be reported; 3 indicates that the channel state information of 4 reference signal resources needs to be reported.

[0287] In the second possible scenario, the number of bits occupied by CSIReportNum is related to the set size of the maximum number of channel state information that can be reported by the terminal device for a single channel state information report configuration. For example, if the set of the maximum number of channel state information that can be reported by the terminal device for a single channel state information report configuration = {1, 2, 4, 8}, CSIReportNum occupies 2 bits. For example, the value of the 2 bits is "00", which means that it is necessary to select the channel state information report of 1 reference signal resource, that is, M = 1; the value of the 2 bits is "01", which means that it is necessary to select the channel state information report of 2 reference signal resources, that is, M = 2; the value of the 2 bits is "10", which means that it is necessary to select the channel state information report of 4 reference signal resources, that is, M = 4; the value of the 2 bits is "11", which means that it is necessary to select the channel state information report of 8 reference signal resources, that is, M = 8. For another example, 0 indicates that the channel state information of 1 reference signal resource needs to be reported; 1 indicates that the channel state information of 2 reference signal resources needs to be reported; 2 indicates that the channel state information of 4 reference signal resources needs to be reported; 3 indicates that the channel state information of 8 reference signal resources needs to be reported.

[0288] In the third possible scenario, the number of bits occupied by CSIReportNum is related to the set size of the maximum number of channel state information that can be reported by the terminal device for a single channel state information report configuration, and the number of bits occupied by CSIReportNum is related to the maximum number of channel state information that can be reported by the terminal device for a single channel state information report configuration. For example, if the set of possible values ​​of the maximum number of channel state information that can be reported by the terminal device for a single channel state information report configuration = {1, 2, 4, 8}, the maximum number of channel state information that can be reported by the terminal device for a single channel state information report configuration is 2, and CSIReportNum occupies 1 bit. For example, the value of this 1 bit is "0", which indicates that it is necessary to select and report the channel state information report of 1 reference signal resource, that is, M=1; the value of this 1 bit is "1", which indicates that it is necessary to select and report the channel state information report of 2 reference signal resources, that is, M=2. For another example, 0 indicates that it is necessary to select and report the channel state information of 1 reference signal resource; 1 indicates that it is necessary to select and report the channel state information of 2 reference signal resources. For another example, if the set of values ​​that the terminal device can configure for the maximum number of channel state information that can be reported for a single channel state information report is {1, 2, 4, 8}, the maximum number of channel state information that the terminal device can configure for a single channel state information report is 2, and CSIReportNum occupies 2 bits. For example, the value of the 2 bits is "00", which indicates that it is necessary to select and report the channel state information of 1 reference signal resource, that is, M=1; the value of the 2 bits is "01" or "10" or "11", which all indicate that it is necessary to select and report the channel state information of 2 reference signal resources, that is, M=2. For another example, 0 indicates that it is necessary to select and report the channel state information of 1 reference signal resource; >=1 indicates that it is necessary to select and report the channel state information of 2 reference signal resources. The examples listed in the above situations are only examples, and the specific bit information used to represent different values ​​is not limited in the embodiments of this application.

[0289] Optionally, the maximum number of channel state information that can be reported by the terminal device for a single channel state information report configuration can be the capability report of the terminal device, that is, each terminal device can have different capabilities; or it can be a predefined value, such as the maximum number value of each terminal device is the same.

[0290] 5. RuleIndex: This indicates the criteria for selecting the reference signal resources and corresponding channel state information reported by the terminal device. Specifically, it indicates how the terminal device selects M terminal device resources and corresponding channel state information from the N terminal device resources configured by the network device to report to the network device. In other words, ruleIndex indicates (or guides) the method for determining the M channel state information.

[0291] In one possible scenario, the number of bits occupied by ruleIndex is related to the number of schemes for the selection criteria of the terminal device. For example, if the number of schemes is 4, the number of bits occupied by ruleIndex is 2 bits. Assume that the four schemes are respectively called Scheme 1, Scheme 2, Scheme 3, and Scheme 4. For example, if the value of the two bits is "00", it indicates that the reported reference signal resources or the channel state information corresponding to the reference signal resources are determined (or decided) based on Scheme 1; if the value of the two bits is "01", it indicates that the reported reference signal resources or the channel state information corresponding to the reference signal resources are determined based on Scheme 2; if the value of the two bits is "10", it indicates that the reported reference signal resources or the channel state information corresponding to the reference signal resources are determined based on Scheme 3; if the value of the two bits is "11", it indicates that the reported reference signal resources or the channel state information corresponding to the reference signal resources are determined based on Scheme 4. For another example, 0 indicates that the reported reference signal resource or the channel state information corresponding to the reference signal resource is determined based on solution 1; 1 indicates that the reported reference signal resource or the channel state information corresponding to the reference signal resource is determined based on solution 2; 2 indicates that the reported reference signal resource or the channel state information corresponding to the reference signal resource is determined based on solution 3; and 3 indicates that the reported reference signal resource or the channel state information corresponding to the reference signal resource is determined based on solution 4. As an example, solutions 1 to 4 may be criteria 1 to 4 described in Example 8 above.

[0292] 6. highPriorityResourceNum: It can indicate the number of high-priority reference signal resources (such as NZP-CSI-RS) carried by the MACCE. Different values ​​may correspond to different MACCE lengths.

[0293] In one possible scenario, the number of bits occupied by highPriorityResourceNum is related to at least one of the following: the maximum number of reference signal resources for channel measurement contained in a single channel state information reporting configuration, and the maximum number of reference signal resources for channel measurement contained in a single reference signal resource set. For example, when the maximum number of reference signal resources is 4, highPriorityResourceNum occupies 2 bits. For example, the value of these 2 bits is "00", indicating that the MACCE signaling carries 1 high-priority reference signal resource indication; the value of these 2 bits is "01", indicating that the MACCE signaling carries 2 high-priority reference signal resource indications; the value of these 2 bits is "10", indicating that the MACCE signaling carries 3 high-priority reference signal resource indications; the value of these 2 bits is "11", indicating that the MACCE signaling carries 4 high-priority reference signal resource indications. For another example, 0 means that MACCE signaling carries 1 high-priority reference signal resource indication; 1 means that MACCE signaling carries 2 high-priority reference signal resource indications; 2 means that MACCE signaling carries 3 high-priority reference signal resource indications; 3 means that MACCE signaling carries 4 high-priority reference signal resource indications.

[0294] Another possible scenario is to predefine the number of high-priority reference signal resources carried by the MACCE. In this case, the network device does not need to configure highPriorityResourceNum.

[0295] 7. Reference signal resource set: For example, a non-zero power CSI-RS (NZP-CSI-RS) resource set (NZP-CSI-RS-ResourceSet) can represent a reference signal resource set applicable to the MAC CE. Taking the NZP-CSI-RS resource set as an example, the NZP-CSI-RS resource set can be represented by an NZP-CSI-RS-ResourceSet identifier (e.g., NZP-CSI-RS-ResourceSetId) or an NZP-CSI-RS-ResourceSet indication (e.g., NZP-CSI-RS-ResourceSet indicator).

[0296] Among them, NZP-CSI-RS-ResourceSetId refers to the identifier (identifier / indication / identity / identification, ID) of the NZP-CSI-RS resource set. The number of bits occupied by NZP-CSI-RS-ResourceSetId may be related to the maximum number of reference signal resource sets that can be configured per cell per BWP of the terminal device. For example, if the maximum number of reference signal resource sets that can be configured per cell per BWP of the terminal device is 64, NZP-CSI-RS-ResourceSetId occupies 6 bits. For example, the value of the 6 bits is "000000", which indicates a reference signal resource set with NZP-CSI-RS-ResourceSetId=0; the value of the 6 bits is "000001", which indicates a reference signal resource set with NZP-CSI-RS-ResourceSetId=1; and so on. For another example, the value 0 represents the reference signal resource set with NZP-CSI-RS-ResourceSetId = 0; 1 represents the reference signal resource set with NZP-CSI-RS-ResourceSetId = 1; the value n represents the reference signal resource set with NZP-CSI-RS-ResourceSetId = n; and so on. It can be understood that if the maximum number of reference signal resource sets that can be configured per cell and per BWP of the terminal device changes (such as to another value), the number of bits occupied by NZP-CSI-RS-ResourceSetId may also need to be adjusted accordingly.

[0297] Among them, NZP-CSI-RS-ResourceSet indicator refers to the logical index of the reference signal resource set. As an example, the number of bits occupied by the NZP-CSI-RS-ResourceSet indicator is related to at least one of the following: the total number of reference signal resource sets included in the CSI-ReportConfig applicable to the MACCE, the number of reference signal resource sets used for channel measurement included in the CSI-ReportConfig applicable to the MACCE, the total number of reference signal resource sets configured by the BWP of the serving cell applicable to the MACCE, and the number of reference signal resource sets used for channel measurement configured by the BWP of the serving cell applicable to the MACCE. For example, if the number of reference signal resource sets is 2, the NZP-CSI-RS-ResourceSet indicator occupies 1 bit. For example, the value of this 1 bit is "0", which indicates the first-ranked reference signal resource set contained in the CSI-ReportConfig applicable to MACCE; the value of this 1 bit is "1", which indicates the second-ranked reference signal resource set contained in the CSI-ReportConfig applicable to MACCE; and so on; for another example, the value 0 indicates the first-ranked reference signal resource set contained in the CSI-ReportConfig applicable to MACCE; 1 indicates the second-ranked reference signal resource set contained in the CSI-ReportConfig applicable to MACCE; and so on.

[0298] For example, if the reference signal resource set configured by the network device to the terminal device includes {NZP-CSI-RS-ResourceSetId#n1, NZP-CSI-RS-ResourceSetId#n2, NZP-CSI-RS-ResourceSetId#n3, NZP-CSI-RS-ResourceSetId#n4}, when NZP-CSI-RS-ResourceSet indicator = 0, it means NZP-CSI-RS-ResourceSetI#n1, when NZP-CSI-RS-ResourceSet indicator = 1, it means NZP-CSI-RS-ResourceSetId#n2, and so on.

[0299] 8. High-priority reference signal resources: For example, one or more NZP-CSI-RS resources may represent one or more high-priority resources indicated by the MACCE. One possible implementation involves indicating high-priority reference signal resources via a bitmap. For details, refer to the description in Example 5 above and are not repeated here.

[0300] In one possible scenario, the number of bits occupied by high-priority reference signal resources (such as the number of bits occupied by the bitmap) is related to at least one of the following: the maximum number of reference signal resources for channel measurement contained in a single channel state information reporting configuration, the maximum number of reference signal resources for channel measurement contained in a single reference signal resource set, the number of reference signal resources for channel measurement contained in the channel state information reporting configuration applicable to the MAC CE, and the number of reference signal resources contained in the reference signal resource set applicable to the MAC CE.

[0301] For example, when the maximum number of reference signal resources is 8, the high-priority reference signal resource occupies 8 bits; when the maximum number of reference signal resources is 4, the high-priority reference signal resource occupies 4 bits. It is understood that if the maximum number of reference signal resources changes (e.g., to another value), the number of bits occupied by the high-priority reference signal resource may also need to be adaptively adjusted.

[0302] For example, taking the bitmap indicating high-priority reference signal resources as an example, the bitmap format is {X0, X1…X(N-1)}, X0 can correspond to the first-ranked reference signal resource used for channel measurement in the channel state information reporting configuration applicable to the MAC CE, or the first-ranked reference signal resource in the reference signal resource set applicable to the MAC CE; X1 corresponds to the second-ranked reference signal resource used for channel measurement in the channel state information reporting configuration applicable to the MAC CE, or the second-ranked reference signal resource in the reference signal resource set applicable to the MAC CE; and so on.

[0303] One possible implementation is to represent the reference signal resource set using one or more NZP-CSI-RS resource combinations. For example, when the maximum number of reference signal resources is 4, the reference signal resource set configured by the network device for the terminal device includes {NZP-CSI-RS-ResourceSetId#n1, NZP-CSI-RS-ResourceSetId#n2, NZP-CSI-RS-ResourceSetId#n3, NZP-CSI-RS-ResourceSetId#n4}. When highPriorityResourceNum = 2, there are 6 combinations of 2 reference signal resources, which are represented by 3 bits. For example, when the value of the 3 bits is "000", it means that {NZP-CSI-RS-ResourceSetId#n1, NZP-CSI-RS-ResourceSetId#n2} is a high-priority pilot resource; when the value of the 3 bits is "001", it means that {NZP-CSI-RS-ResourceSetId#n1, NZP-CSI-RS-ResourceSetId#n3} is a high-priority pilot resource, and so on.

[0304] Taking NZP-CSI-RS resources as an example, NZP-CSI-RS resources can be represented by an NZP-CSI-RS-Resource identifier (such as NZP-CSI-RS-ResourceId) or an NZP-CSI-RS-Resource indication (such as NZP-CSI-RS-Resource indicator).

[0305] Among them, NZP-CSI-RS-ResourceId refers to the identity of the NZP-CSI-RS resource. The number of bits occupied by NZP-CSI-RS-ResourceId is related to the maximum number of reference signal resources that can be configured per cell and per BWP of the terminal device. For example, if the maximum number is 192, NZP-CSI-RS-ResourceId occupies 8 bits; the value 0 represents a reference signal resource set with NZP-CSI-RS-ResourceId=0; 1 represents a reference signal resource set with NZP-CSI-RS-ResourceId=1; the value n represents a reference signal resource set with NZP-CSI-RS-ResourceId=n; and so on. It can be understood that if the maximum number of reference signal resources that can be configured per cell and per BWP of the terminal device changes (such as other values), the number of bits occupied by NZP-CSI-RS-ResourceId may also need to be adjusted accordingly.

[0306] Among them, the NZP-CSI-RS-Resource indicator refers to the logical index of the reference signal resource. The number of bits occupied by the NZP-CSI-RS-Resource indicator is related to at least one of the following: the maximum number of reference signal resources for channel measurement included in a single channel state information reporting configuration, the maximum number of reference signal resources for channel measurement included in a single reference signal resource set, the number of reference signal resources for channel measurement included in the channel state information reporting configuration applicable to the MAC CE, and the number of reference signal resources included in the reference signal resource set applicable to the MAC CE. For example, if the maximum number is 8 or the number of resources is 8, then this field occupies 3 bits; the value n corresponds to the reference signal resource ranked n+1 for channel measurement in the channel state information reporting configuration applicable to the MAC CE, or the reference signal resource ranked n+1 in the reference signal resource set applicable to the MAC CE. It can be understood that if the maximum number or the number of resources changes (such as to other values), the number of bits occupied by the NZP-CSI-RS-Resource indicator may also need to be adjusted accordingly.

[0307] 9. Reference signal resource priority ranking: For example, N reference signal resources, such as N NZP-CSI-RS resources, can be represented by NZP-CSI-RS-ResourceId or NZP-CSI-RS-Resource indicator to represent the specific NZP CSIRS resource. For the meaning of NZP-CSI-RS-ResourceId or NZP-CSI-RS-Resource indicator, please refer to the relevant description in "8" above and will not be repeated here.

[0308] In one possible scenario, the number of NZP-CSI-RS-ResourceId or NZP-CSI-RS-Resource indicator indicated by this field included in the MAC CE is related to at least one of the following: the maximum number of reference signal resources for channel measurement included in a single channel state information reporting configuration, the maximum number of reference signal resources for channel measurement included in a single reference signal resource set, the number of reference signal resources for channel measurement included in the channel state information reporting configuration applicable to the MAC CE, and the number of reference signal resources included in the reference signal resource set applicable to the MAC CE. For example, if the maximum number of reference signal resources or the number of reference signal resources is 8, then this field contains 8 NZP-CSI-RS-ResourceId or NZP-CSI-RS-Resource indicator. It can be understood that if the maximum number of reference signal resources or the number of reference signal resources changes (such as to other values), the number of NZP-CSI-RS-ResourceId or NZP-CSI-RS-Resource indicator may also need to be adjusted accordingly.

[0309] The above describes the specific content of each information that may be included in the MACCE. As an example, Tables 8 to 12 show possible signaling formats of the MACCE. Regarding the fields involved in Tables 8 to 12, R may represent a reserved field. The remaining fields can refer to the previous specific explanations and are not described here. It will be understood that Tables 8 to 12 are merely examples and the embodiments of the present application are not limited thereto. As long as the relevant information of the priority of the reference signal resource can be indicated to the terminal device through the MACCE, it is applicable to the embodiments of the present application.

[0310] Table 8

[0311] Table 9

[0312] Table 10

[0313] Table 11

[0314] Table 12

[0315] The above solution #1 is mainly illustrated by combining MAC CE as an example. The embodiments of the present application are not limited to this. For example, the above method can also be used through other signaling to implement the indication of the priority of the reference signal resource.

[0316] Solution #2: the first indication information is carried in RRC and / or DCI signaling.

[0317] In one possible implementation, parameter #A (i.e., an example of the first indication information) indicates the reference signal resource priority. In other words, parameter #A carries the reference signal resource priority included in the reference signal resource set used for channel measurement. Parameter #A may be a newly added parameter (e.g., dedicated to indicating the reference signal resource priority) or may reuse an existing parameter, without limitation.

[0318] For example, the reference signal resources included in the reference signal resource set for channel measurement "CSI-ReportConfig→resourcesForChannelMeasurement→CSI-ResourceConfig→csi-RS-ResourceSetList→nzp-CSI-RS-SSB→nzp-CSI-RS-ResourceSetList→NZP-CSI-RS-ResourceSet" are: {resource#n1,resource#n3,resource#n4,resource#n2}.

[0319] For another example, the reference signal resources included in the reference signal resource set for channel measurement "CSI-ReportConfig→resourcesForChannelMeasurement→CSI-ResourceConfig→csi-RS-ResourceSetList→nzp-CSI-RS-SSB→nzp-CSI-RS-ResourceSetList→NZP-CSI-RS-ResourceSet" are: {resource#n1,resource#n3,resource#n4,resource#n2,resource#n5,resource#n7,resource#n8,resource#n6}.

[0320] The following is a detailed explanation of several situations.

[0321] In a first possible scenario, parameter #A indicates one or more high-priority reference signal resources.

[0322] As an example, parameter #A is a bitmap, that is, one or more high-priority reference signal resources are indicated through a bitmap.

[0323] One possible implementation method uses a bitmap to indicate one or more high-priority reference signal resources, with each bit corresponding to one reference signal resource. Assume that a bit value of "1" indicates that the corresponding reference signal resource is a high-priority reference signal resource, and a bit value of "0" indicates that the corresponding reference signal resource is a low-priority reference signal resource. This method can be referred to the second possible implementation method in Example 5 and is not further described here.

[0324] Another possible implementation method uses parameter #A to indicate one or more high-priority reference signal resources, where the value of parameter #A is associated with the reference signal resource combination. In other words, parameter #A jointly indicates a combination of multiple reference signal resources. This method can be referred to the third possible implementation method in Example 5 and is not further described here.

[0325] In another possible implementation, the number of bits occupied by parameter #A is related to the number of indicated high-priority reference signal resources. This method can be referred to the implementation in Example 4 and will not be described in detail here.

[0326] In a second possible scenario, parameter #A indicates the priority ranking of N reference signal resources.

[0327] Optionally, the number of bits occupied by parameter #A is related to the number of reference signal resources. For example, when N=4, 8 bits may be used to indicate the priority order of the four reference signal resources.

[0328] In one possible implementation, the value of parameter #A is associated with the priority order of the reference signal resources among the N reference signal resources. This method can be referred to the relevant description in Example 7 and will not be described in detail here.

[0329] The above solution #2 is mainly illustrated by taking DCI / RRC as an example, and the embodiments of the present application are not limited thereto. For example, the above method can also be used through other signaling to implement the indication of the priority of the reference signal resource.

[0330] The above describes the relevant solutions regarding the first indication information in conjunction with aspect 1, and the following describes the relevant solutions regarding the selection criteria in conjunction with aspect 2.

[0331] Aspect 2, selection criteria related options.

[0332] After performing channel measurement based on the reference signal, the terminal device can report the channel measurement results, such as channel state information, to the network device. The following describes several ways in which the terminal device reports M channel state information.

[0333] In a first possible implementation, the terminal device selects M channel state information and reports them.

[0334] For example, the terminal device selects the channel state information of M reference signal resources with high priority to report based on the priorities of the N reference signal resources.

[0335] For another example, the terminal device selects channel state information of M reference signal resources to report in order of priority from high to low according to the priorities of the N reference signal resources.

[0336] In a second possible implementation manner, the terminal device determines M pieces of channel state information according to the priorities and selection criteria of N reference signal resources.

[0337] In one example, the method 500 further includes: the network device sends second indication information, where the second indication information indicates a selection criterion.

[0338] The second indication information and the first indication information may be carried in the same signaling or in different signaling, without limitation. In one possible scenario, the second indication information is the same as the first indication information, that is, the selection criterion and the priority of the N reference signal resources are indicated by a single signaling. Regarding the scheme of indicating the selection criterion in the second indication information, please refer to Example 8 in Aspect 1 and will not be elaborated here.

[0339] Further optionally, method 500 further includes: the terminal device sending third indication information to the network device, where the third indication information indicates a selection criterion. For example, the network device indicates multiple selection criteria to the terminal device, and the terminal device determines M channel state information based on one of the selection criteria and reports the selected selection criterion to the network device. For another example, the network device indicates one or more selection criteria to the terminal device, and the terminal device autonomously determines M channel state information and sends third indication information to the network device, where the third indication information indicates that the indicated selection criterion was not adopted.

[0340] In another example, the selection criterion is predefined. Further optionally, the method 500 further includes: the terminal device sending third indication information to the network device, where the third indication information indicates the selection criterion.

[0341] The following is a detailed explanation of the possible forms of the criteria.

[0342] Criterion 1: Some reported reference signal resources are determined autonomously by the terminal device, and some reported beams are selected based on the reference signal resource priority specified by the network device. In other words, the M channel state information includes M1 first channel state information and M2 second channel state information. The M1 first channel state information is determined autonomously by the terminal device, and the M2 second channel state information is determined based on the priority of the N reference signal resources.

[0343] Wherein, M1 and M2 are both integers greater than or equal to 0 and less than or equal to M, and M1+M2=M.

[0344] The values ​​of M1 and / or M2 may be predefined or indicated, and are not limited thereto. Taking M1 and M2 as an example, for example, if the network device indicates the value of M1, the terminal device may determine the value of M2 based on the values ​​of M and M1, based on M2=M-M1. For another example, if the network device indicates the value of M2, the terminal device may determine the value of M1 based on the values ​​of M and M2, based on M1=M-M2. For another example, if M1 and M are associated, the network device indicates the value of M. The terminal device may determine the value of M1 based on the value of M and the associated relationship, and further determine the value of M2 based on M2=M-M1. For another example, if M2 and M are associated, the network device indicates the value of M. The terminal device may determine the value of M2 based on the value of M and the associated relationship, and further determine the value of M1 based on M1=M-M2.

[0345] In the first possible scenario, the optimal reference signal resource is selected by the terminal device independently, and other reference signal resources are selected in order from high to low based on the reference signal resource priority specified by the network device.

[0346] In this case, M1=1, M2=M-1.

[0347] The optimal reference signal resource may refer to a reference signal resource with the highest channel measurement quality. It is understood that "optimal" can also be replaced with "quality greater than or equal to a preset threshold." In this case, M1 may be greater than 1, equal to 0, or equal to 1, depending on the actual situation. The following examples primarily use the optimal value.

[0348] As an example, in this case, in step 540, the format of the M channel state information sent by the terminal device is as shown in Table 13.

[0349] Table 13

[0350] As shown in Table 13, the channel state information (i.e., measurement results) fed back by the terminal device may include at least one of the following: a CRI indicating an optimal reference signal resource, channel state information of the optimal reference signal resource, channel state information of each high-priority reference signal resource that is not the same as the optimal reference signal resource, the reference signal resource (or reference signal) associated with the reported channel state information, and a report index (e.g., CSI report#n). i1 in Table 13 represents a precoding weight index. The remaining tables described below are similar and are not described in detail here.

[0351] In the second possible scenario, the M2 reference signal resources are high-priority reference signal resources configured by the network device, and the (M-M2) reference signal resources are independently selected by the terminal device.

[0352] Specifically, assuming that there are N1 high-priority reference signal resources among the N reference signal resources indicated by the network device in step 510, and N1 is greater than or equal to M2, at this time, the terminal device can select the channel state information of M2 reference signal resources from the N1 high-priority reference signal resources, and autonomously select the channel state information of (M-M2) reference signal resources.

[0353] For example, N1 is equal to M2, that is, the terminal device selects the channel state information of the high-priority reference signal resources among N reference signal resources for reporting, and if M is greater than M2, it autonomously selects the channel state information of (M-M2) reference signal resources for reporting.

[0354] In a third possible scenario, the optimal reference signal resource is independently selected by the terminal device, and other reference signal resources are high-priority reference signal resources configured by the network device.

[0355] Assume that there are N1 high-priority reference signal resources among the N reference signal resources indicated by the network device in step 510, and N1 is greater than or equal to M. The terminal device selects the reference signal resource with the best quality from the N reference signal resources. If the reference signal resource with the best quality belongs to one of the N1 high-priority reference signal resources, then the M reference signal resources reported by the terminal device all belong to the N1 high-priority reference signal resources; if the reference signal resource with the best quality does not belong to one of the N1 high-priority reference signal resources, then among the M reference signal resources reported by the terminal device, (M-1) high-priority reference signal resources belong to high-priority reference signal resources (i.e., reference signal resources among the N1 high-priority reference signal resources), and 1 belongs to a low-priority reference signal resource. Among them, the best can also be replaced by a reference signal resource with a quality greater than a preset threshold.

[0356] Criterion 2: Based on the reference signal resource priority specified by the network device, a high-priority reference signal resource is selected for reporting.

[0357] In the first possible scenario, assuming that the network device indicates the priority ranking of N reference signal resources in step 510, the terminal device can select the channel state information of M reference signal resources in sequence from high priority to low priority based on the priority ranking.

[0358] As an example, in this case, in step 540, the format of the M channel state information sent by the terminal device is as shown in Table 14.

[0359] Table 14

[0360] As shown in Table 14, the channel state information (i.e., measurement results) fed back by the terminal device may include at least one of the following: channel state information of M reference signal resources (such as M reference signal resources with higher priority), the reference signal resource (or reference signal) associated with the reported channel state information, and a report index.

[0361] The second possible scenario is to assume that there are N1 high-priority reference signal resources among the N reference signal resources indicated by the network device in step 510, and N1 is greater than M. At this time, the terminal device can select channel state information of M reference signal resources from the N1 high-priority reference signal resources.

[0362] For example, the terminal device can select M reference signal resources,

[0363] For another example, the terminal device may select M reference signal resources in sequence from the N1 high-priority reference signal resources according to priority, from high priority to low priority.

[0364] For another example, the terminal device may select M reference signal resources from the N1 high-priority reference signal resources according to the order of the reference signal resources in the resource table.

[0365] Criterion 3: The terminal device decides whether to adopt the reference signal resource priority specified by the network device.

[0366] In the first possible scenario, the terminal device determines to use the reference signal resource priority specified by the network device. In this scenario, reference may be made to the relevant description in criterion 2, which will not be repeated here.

[0367] In a second possible scenario, the terminal device autonomously determines the selected reference signal resources. In other words, the terminal device selects M reference signal resources and reports channel state information for these M reference signal resources. Optionally, method 500 also includes: the terminal device reporting selection criteria to the network device. For details, see the relevant description in Example 8.

[0368] As an example, in this case, in step 540, the format of the M channel state information sent by the terminal device is as shown in Table 15.

[0369] Table 15

[0370] As shown in Table 15, the channel state information (ie, measurement results) fed back by the terminal device may include at least one of the following: a CRI for indicating one or more reference signal resources, channel state information of the one or more reference signal resources, and a report index.

[0371] Criterion 4: The criterion adopted by the terminal device for autonomous decision-making, that is, one of Criteria 1, Criteria 2, and Criteria 3.

[0372] Further, optionally, method 500 further includes: the terminal device sending third indication information to the network device, where the third indication information indicates a criterion used when determining the M channel state information, that is, a criterion selected by the terminal device. For details, please refer to the relevant description in Example 8.

[0373] As an example, a parameter (e.g., parameter #B, i.e., an example of the third indication information) is used to represent the terminal device selection criterion (or the criterion used by the terminal device when determining the M channel state information, or the manner in which the terminal device determines the M channel state information). Parameter #B may also be referred to as a resource selection criterion (resourceSelectRule).

[0374] A possible implementation method is to use the value of the parameter #B to indicate the criteria for selecting the terminal device.

[0375] For example, if the value of parameter #B is "00", it means that the terminal device does not adopt the reference signal resource priority specified by the network device (i.e., the second possible scenario in criterion #3); if the value of parameter #B is "01", it means that the terminal device adopts the reference signal resource priority specified by the network device (i.e., the first possible scenario in criterion #3, or criterion #2); if the value of parameter #B is "10", it means that some of the reported reference signal resources are decided by the terminal device independently, and some of the reported beams are selected based on the reference signal resource priority specified by the network device (i.e., criterion #1). For another example, if parameter #B is 0, it means that the terminal device does not adopt the reference signal resource priority specified by the network device (i.e., the second possible scenario in criterion #3); if parameter #B is 1, it means that the terminal device adopts the reference signal resource priority specified by the network device (i.e., the first possible scenario in criterion #3, or criterion #2); if parameter #B is 2, it means that some of the reported reference signal resources are decided by the terminal device independently, and some of the reported beams are selected based on the reference signal resource priority specified by the network device (i.e., criterion #1).

[0376] As an example, the format of M channel state information sent by the terminal device is introduced below in combination with Tables 16 to 19.

[0377] Table 16

[0378] As shown in Table 16, the channel state information (i.e., measurement results) fed back by the terminal device may include at least one of the following: parameter #B, one or more CRIs, channel state information of one or more reference signal resources indicated by the one or more CRIs, and a report index. A value of 0 for parameter #B indicates that the terminal device does not use the reference signal resource priority specified by the network device.

[0379] Table 17

[0380] As shown in Table 17, the channel state information (i.e., measurement results) fed back by the terminal device may include at least one of the following: parameter #B, a CRI for indicating one or more reference signal resources, the channel state information of the one or more reference signal resources, and a report index. Among them, parameter #B is 0, indicating that the terminal device does not adopt the reference signal resource priority specified by the network device. The difference between the format shown in Table 17 and the format shown in Table 16 is that in Table 17, one CRI can indicate one or more reference signal resources. Therefore, one CRI can be reported to indicate the reference signal resources corresponding to M channel state information.

[0381] Table 18

[0382] As shown in Table 18, the channel state information (i.e., measurement results) fed back by the terminal device can include at least one of the following: parameter #B, channel state information for each high-priority reference signal resource, and a report index. A value of 1 for parameter #B indicates that the terminal device uses the reference signal resource priority specified by the network device (i.e., the first possible scenario in criterion #3, or criterion #2). In this case, since the network device knows the high-priority reference signal resources, the terminal device does not need to feed back the CRI, saving signaling overhead.

[0383] Table 19

[0384] Table 19 is similar to Table 13, except that Table 19 also includes parameter #B. Parameter #B is 2, indicating that when the terminal device determines M channel state information, the criteria adopted are: some of the reported reference signal resources are decided autonomously by the terminal device, and some of the reported beams are selected based on the reference signal resource priority specified by the network device (i.e., criterion #1).

[0385] Tables 13 through 19 above describe possible formats of channel state information reported by terminal devices. The embodiments of the present application are not limited thereto, and any variations of the above tables are applicable to the embodiments of the present application. For example, the optimal reference signal resources mentioned in Tables 13 through 19 above may also be replaced with reference signal resources whose signal quality is greater than or equal to a preset threshold.

[0386] The above description about the selection criteria is introduced in conjunction with Aspect 2. It can be understood that the "selection criteria" is only a name made for the convenience of description, and its naming does not limit the scope of protection of the embodiments of the present application. For example, the "selection criteria" can also be replaced by "scheme" or "criteria" or "conditions", etc. For another example, the "selection criteria" can also be replaced by the specific content of the criteria. Taking the above-mentioned criterion 1 as an example, the terminal device determines M channel state information according to the priority and selection criteria of N reference signal resources, which can also be replaced by: the terminal device determines M channel state information according to the priority of N reference signal resources, and: some of the reported reference signal resources are autonomously decided by the terminal device, and some of the reported beams are selected based on the reference signal resource priority specified by the network device; in other words, the terminal device determines M channel state information according to the priority of N reference signal resources and the autonomously decided reference signal resources.

[0387] It can be understood that in each embodiment of the present application, the interaction between the terminal device and the network device is mainly used as an example for illustrative explanation. The present application is not limited to this. The terminal device can be replaced by a receiving device, and the receiving device can be a terminal device or a network device; the network device can be replaced by a sending device, and the sending device can be a terminal device or a network device.

[0388] It can also be understood that some optional features in the various embodiments of the present application may not depend on other features in certain scenarios, and may also be combined with other features in certain scenarios, without limitation.

[0389] It can also be understood that the solutions in the various embodiments of the present application can be reasonably combined and used, and the explanations or descriptions of the various terms appearing in the embodiments can be referenced or explained with each other in the various embodiments, without limitation to this.

[0390] It can also be understood that in the above-mentioned various method embodiments, the methods and operations implemented by devices (such as terminal devices, network devices) can also be implemented by components of the devices (such as chips or circuits) without limitation.

[0391] The method provided in the embodiment of the present application is described in detail above in conjunction with Figure 5. Below, the apparatus provided in the embodiment of the present application is described in detail in conjunction with Figures 6 to 8. It should be understood that the description of the apparatus embodiment corresponds to the description of the method embodiment. Therefore, for matters not described in detail, please refer to the method embodiment above. For the sake of brevity, they are not repeated here.

[0392] Referring to FIG6 , FIG6 is a schematic diagram of a communication device 600 provided in an embodiment of the present application. The device 600 includes a transceiver unit 610. The transceiver unit 610 can be used to implement corresponding communication functions. The transceiver unit 610 can also be referred to as a communication interface or a communication unit. The device 600 also includes a processing unit 620. The processing unit 620 can be used to perform processing, such as performing beam measurement. The processing unit 620 can be used to perform processing, such as performing beam measurement. The functions of the processing unit 620 can be implemented by one or more processors. Specifically, the processor may include a modem chip, or a system-on-chip (SoC) chip or SIP chip containing a modem core.

[0393] Optionally, the device 600 may further include a storage unit, which may be used to store instructions and / or data. The processing unit 620 may read the instructions and / or data in the storage unit so that the device implements the aforementioned method embodiment.

[0394] Optionally, the transceiver unit 610 may include a receiving unit and a sending unit, wherein the receiving unit may be used to perform reception-related operations (such as receiving data or messages), and the sending unit may be used to perform transmission-related operations (such as sending data or messages).

[0395] In a first possible design, the apparatus 600 may be the terminal device in the aforementioned embodiment, and the apparatus 600 may implement the steps or processes corresponding to those performed by the terminal device in the above method embodiment. The transceiver unit 610 may be used to perform the transceiver-related operations (such as operations of sending and / or receiving data or messages) of the terminal device in the above method embodiment. For example, the transceiver unit 610 may be used to perform steps 510, 520, and 540 in the embodiment shown in FIG5 . The processing unit 620 may be used to perform the processing-related operations of the terminal device in the above method embodiment, or operations other than transceiver (such as operations other than sending and / or receiving data or messages). For example, the processing unit 620 may be used to perform step 530 in the embodiment shown in FIG5 .

[0396] In one possible implementation, the transceiver unit 610 is used to receive first indication information, where the first indication information indicates the priority of N reference signal resources, where N is an integer greater than 1; the transceiver unit 610 is also used to receive a reference signal through the N reference signal resources; the processing unit 620 is used to measure at least one reference signal resource of the N reference signal resources based on the priority of the N reference signal resources to obtain M channel state information, where M is an integer greater than 1 or equal to 1; the transceiver unit 610 is also used to send M channel state information.

[0397] In a second possible design, the apparatus 600 may be a network device in the aforementioned embodiment, and the apparatus 600 may implement the steps or processes corresponding to those performed by the network device in the above method embodiment. The transceiver unit 610 may be used to perform transceiver-related operations (such as operations of sending and / or receiving data or messages) of the network device in the above method embodiment. For example, the transceiver unit 610 may be used to perform steps 510, 520, and 540 in the embodiment shown in FIG5 . The processing unit 620 may be used to perform processing-related operations of the network device in the above method embodiment, or operations other than transceiver operations (such as operations other than sending and / or receiving data or messages).

[0398] In one possible implementation, the transceiver unit 610 is used to send first indication information, where the first indication information indicates the priority of N reference signal resources, where N is an integer greater than 1; the transceiver unit 610 is also used to send a reference signal through the N reference signal resources; the transceiver unit 610 is also used to receive M channel state information, where the M channel state information is obtained by measuring at least one reference signal resource of the N reference signal resources based on the priority of the N reference signal resources, where M is an integer greater than 1 or equal to 1.

[0399] It should be understood that the specific process of each unit executing the above corresponding steps has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0400] It should also be understood that the device 600 here is embodied in the form of a functional unit. The term "unit" here can refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a combined logic circuit and / or other suitable components that support the described functions. In an optional example, those skilled in the art will understand that the device 600 can be specifically the communication device in the above-mentioned embodiment, and can be used to execute the various processes and / or steps corresponding to the communication device in the above-mentioned method embodiments. To avoid repetition, they will not be described here.

[0401] The apparatus 600 of each of the above-described solutions has the function of implementing the corresponding steps performed by the communication device in the above-described method. The functions can be implemented by hardware, or by hardware executing corresponding software implementations. The hardware or software includes one or more modules corresponding to the above-described functions; for example, the transceiver unit can be replaced by a transceiver (for example, the transmitting unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor to respectively perform the transceiver operations and related processing operations in each method embodiment.

[0402] In addition, the transceiver unit 610 may also be a transceiver circuit (for example, may include a receiving circuit and a sending circuit), and the processing unit may be a processing circuit.

[0403] It should be noted that the apparatus in FIG6 can be the communication device in the aforementioned embodiment, or it can be a chip or chip system, such as a system on chip (SoC). The transceiver unit can be an input / output circuit or a communication interface; the processing unit can be a processor, microprocessor, or integrated circuit integrated on the chip. This is not limited here.

[0404] Referring to FIG7 , FIG7 is a schematic diagram of another communication device 700 provided in an embodiment of the present application. The device 700 includes a processor 710, which is coupled to a memory 720. The memory 720 is configured to store computer programs or instructions and / or data. The processor 710 is configured to execute the computer programs or instructions stored in the memory 720, or read the data stored in the memory 720, to perform the methods described in the above method embodiments.

[0405] Optionally, there are one or more processors 710 .

[0406] Optionally, there are one or more memories 720 .

[0407] Optionally, the memory 720 is integrated with the processor 710 or provided separately.

[0408] Optionally, as shown in Figure 7, the apparatus 700 further includes a transceiver 730, which is configured to receive and / or transmit signals. For example, the processor 710 is configured to control the transceiver 730 to receive and / or transmit signals.

[0409] As an example, the processor 710 may have the function of the processing unit 620 shown in FIG. 6 , the memory 720 may have the function of a storage unit, and the transceiver 730 may have the function of the transceiver unit 610 shown in FIG. 6 .

[0410] As a solution, the device 700 is used to implement the operations performed by the communication device in the above various method embodiments.

[0411] For example, the processor 710 is configured to execute computer programs or instructions stored in the memory 720 to implement relevant operations of the terminal device or network device in each of the above method embodiments.

[0412] It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0413] It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory and / or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM includes the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0414] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) can be integrated into the processor.

[0415] It should also be noted that the memory described herein is intended to comprise, but not be limited to, these and any other suitable types of memory.

[0416] 8 , which is a schematic diagram of a chip system 800 according to an embodiment of the present application, wherein the chip system 800 (or also referred to as a processing system) includes a logic circuit 810 and an input / output interface 820 .

[0417] The logic circuit 810 may be a processing circuit in the chip system 800. The logic circuit 810 may be coupled to a storage unit and call instructions in the storage unit so that the chip system 800 can implement the methods and functions of the various embodiments of the present application. The input / output interface 820 may be an input / output circuit in the chip system 800, outputting information processed by the chip system 800 or inputting data or signaling information to be processed into the chip system 800 for processing.

[0418] Alternatively, the logic circuit 810 may be implemented by one or more processors, including the one or more processors or a processing portion in the one or more processors.

[0419] Optionally, the input / output interface 820 may include a transceiver circuit, a transceiver, an input / output circuit, or a communication interface.

[0420] As a solution, the chip system 800 is used to implement the operations performed by a communication device (such as a terminal device or a network device) in the above various method embodiments.

[0421] For example, the logic circuit 810 is used to implement the processing-related operations performed by the communication device (such as a terminal device, or a network device) in the above method embodiments; the input / output interface 820 is used to implement the sending and / or receiving-related operations performed by the communication device (such as a terminal device, or a network device) in the above method embodiments.

[0422] An embodiment of the present application further provides a computer-readable storage medium storing computer instructions for implementing the methods executed by a communication device (such as a terminal device or a network device) in the above-mentioned method embodiments.

[0423] For example, when the computer program is executed by a computer, the computer can implement the methods performed by a communication device (such as a terminal device, or a network device) in each embodiment of the above method.

[0424] An embodiment of the present application further provides a computer program product comprising instructions, which, when executed by a computer, implement the methods performed by a communication device (such as a terminal device or a network device) in the above-mentioned method embodiments.

[0425] The present application also provides a communication system, which includes the terminal device and / or network device in the above embodiments. For example, the system includes the terminal device and network device in Figure 5.

[0426] The explanation of the relevant contents and beneficial effects of any of the above-mentioned devices can be referred to the corresponding method embodiments provided above, which will not be repeated here.

[0427] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0428] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. For example, the computer can be a personal computer, a server, or a network device, etc. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state disk (SSD)). For example, the aforementioned available medium includes, but is not limited to, various media that can store program code, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0429] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: include: receiving first indication information, where the first indication information indicates priorities of N reference signal resources, where N is an integer greater than 1; receiving a reference signal through the N reference signal resources; Measuring at least one reference signal resource of the N reference signal resources based on priorities of the N reference signal resources to obtain M channel state information, where M is an integer greater than 1 or equal to 1; The M channel state information are sent.

2. The method according to claim 1, characterized in that The first information indicating the priorities of N reference signal resources includes: The first indication information indicates M R reference signal resources, the M R The reference signal resources are the reference signal resources that the network equipment needs to report the channel state information. R is an integer greater than or equal to 0.

3. The method according to claim 2, characterized in that The M R When it is greater than 0, the M channel state information includes the M R The channel state information corresponding to the reference signal resources.

4. The method according to claim 3, characterized in that The M R The channel state information corresponding to the reference signal resources is located in non-M R Before the channel state information corresponding to the reference signal resources, the non-M R The reference signal resources are obtained by removing the M reference signal resources from the N reference signal resources by the terminal device. R Determined from reference signal resources other than reference signal resources.

5. The method according to any one of claims 2 to 4, characterized in that The M R The value of is related to the codebook type associated with the reference signal resource.

6. The method according to claim 5, characterized in that If the codebook type associated with the reference signal resource is single antenna panel type one codebook typeI-SinglePanel, then the M R The value of is 1 or 2; If the codebook type associated with the reference signal resource is type II codebook, then the M R The value of is 1.

7. The method according to any one of claims 1 to 6, characterized in that The reference signal resources associated with part of the channel state information in the M channel state information are determined by the terminal device, and the reference signal resources associated with part of the channel state information are reference signal resources configured by the network device that need to report the channel state information; or, The reference signal resources associated with the M channel state information are reference signal resources configured by the network device and requiring reporting of channel state information; or, The reference signal resources associated with the M channel state information are determined by the terminal device.

8. The method according to claim 7, characterized in that The M channel state information includes MM R Reference signal resource identifiers, the M R Indicates the number of reference signal resources required to report channel state information configured by the network device, M R is an integer greater than or equal to 0.

9. The method according to any one of claims 1 to 8, characterized in that The first indication information indicates one or more of the following information: the value of M, the number of reference signal resources configured by the network device among the N reference signal resources that need to report channel state information, and the reference signal resources configured by the network device among the N reference signal resources that need to report channel state information.

10. The method according to claim 9, characterized in that The first indication information indicates the reference signal resource configured by the network device for reporting channel state information, M R The value of M is derived based on the reference signal resources for reporting channel state information configured by the network device. R Indicates the number of reference signal resources required to report channel state information configured by the network device.

11. The method according to any one of claims 1 to 10, characterized in that The first indication information is carried in one or more of the following signalings: radio resource control, medium access control, and downlink control information.

12. The method according to any one of claims 1 to 11, characterized in that The value of M is related to at least one of the following: the capability of the terminal device, the codebook type associated with the reference signal resource, and the number of ports included in each reference signal resource.

13. The method according to any one of claims 1 to 12, characterized in that The first indication information is a bitmap, and each bit in the bitmap corresponds to a reference signal resource. The bit value is a first value, indicating that the reference signal resource is a reference signal resource configured by the network device and needs to report channel state information; or, The value of the first indication information is associated with a reference signal resource configured by a network device among the N reference signal resources and requiring reporting of channel state information.

14. The method according to claim 13, wherein: M R The value of is the number of bits in the bitmap whose bit value is the first value, and the M R Indicates the number of reference signal resources required to report channel state information configured by the network device.

15. The method according to claim 13 or 14, characterized in that The bits in the bitmap from high to low respectively correspond to reference signal resources with reference signal resource identifiers from small to large, or the bits in the bitmap from high to low respectively correspond to reference signal resources with reference signal resource identifiers from large to small.

16. The method according to any one of claims 1 to 15, characterized in that The M channel state information include M1 first channel state information and M2 second channel state information, the M2 second channel state information is determined according to the priority of the N reference signal resources, M1 and M2 are both integers greater than 0 or equal to 0 and less than M or equal to M, M1+M2=M.

17. The method according to claim 16, characterized in that The M channel state information include M3 reference signal resource identifiers, where the M3 reference signal resource identifiers indicate reference signal resources associated with the M1 first channel state information, and M3 is an integer greater than or equal to 0 and less than or equal to M.

18. The method according to claim 16 or 17, characterized in that When a preset condition is met, the M channel state information includes the M1 first channel state information and the M2 second channel state information.

19. The method according to any one of claims 1 to 18, characterized in that The M channel state information are obtained by measuring the reference signals on M reference signal resources among the N reference signal resources.

20. The method according to any one of claims 1 to 19, characterized in that The M channel state information are determined based on at least one reference signal resource of the N reference signal resources and a reference signal resource for interference measurement, and the association relationship between the reference signal resource for interference measurement and the N reference signal resources is related to the type of the reference signal resource for interference measurement.

21. The method according to claim 20, characterized in that When the reference signal resource used for interference measurement is a non-zero power reference signal resource, the reference signal resource used for interference measurement corresponds one-to-one with the N reference signal resources; and / or, When the reference signal resource used for interference measurement is a zero-power reference signal resource, the number of the reference signal resource used for interference measurement is one, and the reference signal resource used for interference measurement corresponds to the N reference signal resources.

22. The method according to claim 21, characterized in that The non-zero power reference signal resource is a non-zero power channel state information reference signal NZP CSI-RS resource, and the zero power reference signal resource is a channel state information interference measurement CSI-IM resource.

23. A communication method, characterized in that: include: Sending first indication information, where the first indication information indicates the priorities of N reference signal resources, where N is an integer greater than 1; Sending a reference signal through the N reference signal resources; M channel state information is received, where the M channel state information is obtained by measuring at least one reference signal resource of the N reference signal resources based on the priorities of the N reference signal resources, where M is an integer greater than 1 or equal to 1.

24. The method according to claim 23, wherein The first information indicating the priorities of N reference signal resources includes: The first indication information indicates M R reference signal resources, the M R The reference signal resources are the reference signal resources that the network equipment needs to report the channel state information. R is an integer greater than or equal to 0.

25. The method according to claim 24, characterized in that The M R When it is greater than 0, the M channel state information includes the M R The channel state information corresponding to the reference signal resources.

26. The method according to claim 25, characterized in that The M R The channel state information corresponding to the reference signal resources is located in non-M R Before the channel state information corresponding to the reference signal resources, the non-M R The reference signal resources are obtained by removing the M reference signal resources from the N reference signal resources by the terminal device. R Determined from reference signal resources other than reference signal resources.

27. The method according to any one of claims 24 to 26, characterized in that The M R The value of is related to the codebook type associated with the reference signal resource.

28. The method according to claim 27, characterized in that If the codebook type associated with the reference signal resource is single antenna panel type one codebook typeI-SinglePanel, then the M R The value of is 1 or 2; If the codebook type associated with the reference signal resource is type II codebook, then the M R The value of is 1.

29. The method according to any one of claims 23 to 28, characterized in that The reference signal resources associated with part of the channel state information in the M channel state information are determined by the terminal device, and the reference signal resources associated with part of the channel state information are reference signal resources configured by the network device that need to report the channel state information; or, The reference signal resources associated with the M channel state information are reference signal resources configured by the network device and requiring reporting of channel state information; or, The reference signal resources associated with the M channel state information are determined by the terminal device.

30. The method according to claim 29, wherein The M channel state information includes MM R Reference signal resource identifiers, the M R Indicates the number of reference signal resources required to report channel state information configured by the network device, M R is an integer greater than or equal to 0.

31. The method according to any one of claims 23 to 30, characterized in that The first indication information indicates one or more of the following information: the value of M, the number of reference signal resources configured by the network device among the N reference signal resources that need to report channel state information, and the reference signal resources configured by the network device among the N reference signal resources that need to report channel state information.

32. The method according to claim 31, characterized in that The first indication information indicates the reference signal resource configured by the network device for reporting channel state information, M R The value of M is derived based on the reference signal resources for reporting channel state information configured by the network device. R Indicates the number of reference signal resources required to report channel state information configured by the network device.

33. The method according to any one of claims 23 to 32, characterized in that The first indication information is carried in one or more of the following signalings: radio resource control, medium access control, and downlink control information.

34. The method according to any one of claims 23 to 33, characterized in that The value of M is related to at least one of the following: the capability of the terminal device, the codebook type associated with the reference signal resource, and the number of ports included in each reference signal resource.

35. The method according to any one of claims 23 to 34, characterized in that The first indication information is a bitmap, and each bit in the bitmap corresponds to a reference signal resource. The bit value is a first value, indicating that the reference signal resource is a reference signal resource configured by the network device and needs to report channel state information; or, The value of the first indication information is associated with a reference signal resource configured by a network device among the N reference signal resources and requiring reporting of channel state information.

36. The method according to claim 35, characterized in that M R The value of is the number of bits in the bitmap whose bit value is the first value, and the M R Indicates the number of reference signal resources required to report channel state information configured by the network device.

37. The method according to claim 35 or 36, characterized in that The bits in the bitmap from high to low respectively correspond to reference signal resources with reference signal resource identifiers from small to large, or the bits in the bitmap from high to low respectively correspond to reference signal resources with reference signal resource identifiers from large to small.

38. The method according to any one of claims 23 to 37, characterized in that The M channel state information include M1 first channel state information and M2 second channel state information, the M2 second channel state information is determined according to the priority of the N reference signal resources, M1 and M2 are both integers greater than 0 or equal to 0 and less than M or equal to M, M1+M2=M.

39. The method according to claim 38, wherein The M channel state information include M3 reference signal resource identifiers, where the M3 reference signal resource identifiers indicate reference signal resources associated with the M1 first channel state information, and M3 is an integer greater than or equal to 0 and less than or equal to M.

40. The method according to claim 38 or 39, characterized in that When a preset condition is met, the M channel state information includes the M1 first channel state information and the M2 second channel state information.

41. The method according to any one of claims 23 to 40, characterized in that The M channel state information are obtained by measuring the reference signals on M reference signal resources among the N reference signal resources.

42. The method according to any one of claims 23 to 41, characterized in that The M channel state information are determined based on at least one reference signal resource of the N reference signal resources and a reference signal resource for interference measurement, and the association relationship between the reference signal resource for interference measurement and the N reference signal resources is related to the type of the reference signal resource for interference measurement.

43. The method according to claim 42, characterized in that When the reference signal resource used for interference measurement is a non-zero power reference signal resource, the reference signal resource used for interference measurement corresponds one-to-one with the N reference signal resources; and / or, When the reference signal resource used for interference measurement is a zero-power reference signal resource, the number of the reference signal resource used for interference measurement is one, and the reference signal resource used for interference measurement corresponds to the N reference signal resources.

44. The method according to claim 43, wherein The non-zero power reference signal resource is a non-zero power channel state information reference signal NZP CSI-RS resource, and the zero power reference signal resource is a channel state information interference measurement CSI-IM resource.

45. A communication device, characterized in that Including transceiver unit and processing unit, The transceiver unit is configured to receive first indication information, where the first indication information indicates the priorities of N reference signal resources, where N is an integer greater than 1; The transceiver unit is further configured to receive a reference signal through the N reference signal resources; The processing unit is configured to measure at least one reference signal resource of the N reference signal resources based on the priorities of the N reference signal resources to obtain M channel state information, where M is an integer greater than 1 or equal to 1; The transceiver unit is further configured to send the M channel state information.

46. ​​The device according to claim 45, characterized in that The first information indicating the priorities of N reference signal resources includes: The first indication information indicates M R reference signal resources, the M R The reference signal resources are the reference signal resources that the network equipment needs to report the channel state information. R is an integer greater than or equal to 0.

47. The device according to claim 46, characterized in that The M R When it is greater than 0, the M channel state information includes the M R The channel state information corresponding to the reference signal resources.

48. The device according to claim 47, characterized in that The M R The channel state information corresponding to the reference signal resources is located in non-M R Before the channel state information corresponding to the reference signal resources, the non-M R The reference signal resources are obtained by removing the M reference signal resources from the N reference signal resources by the terminal device. R Determined from reference signal resources other than reference signal resources.

49. The device according to any one of claims 46 to 48, characterized in that The M R The value of is related to the codebook type associated with the reference signal resource.

50. The device according to claim 49, characterized in that If the codebook type associated with the reference signal resource is single antenna panel type one codebook typeI-SinglePanel, then the M R The value of is 1 or 2; If the codebook type associated with the reference signal resource is type II codebook, then the M R The value of is 1.

51. The device according to any one of claims 45 to 50, characterized in that The reference signal resources associated with part of the channel state information in the M channel state information are determined by the communication device, and the reference signal resources associated with part of the channel state information are reference signal resources configured by the network device and requiring reporting of channel state information; or, The reference signal resources associated with the M channel state information are reference signal resources configured by the network device and requiring reporting of channel state information; or, The reference signal resources associated with the M channel state information are determined by the communication device.

52. The device according to claim 51, characterized in that The M channel state information includes MM R Reference signal resource identifiers, the M R Indicates the reference signal resource for reporting channel state information configured by the network device, M R is an integer greater than or equal to 0.

53. The device according to any one of claims 45 to 52, characterized in that The first indication information indicates one or more of the following information: the value of M, the number of reference signal resources configured by the network device among the N reference signal resources that need to report channel state information, and the reference signal resources configured by the network device among the N reference signal resources that need to report channel state information.

54. The device according to claim 53, characterized in that The first indication information indicates the reference signal resource configured by the network device for reporting channel state information, M R The value of M is derived based on the reference signal resources for reporting channel state information configured by the network device. R Indicates the number of reference signal resources required to report channel state information configured by the network device.

55. The device according to any one of claims 45 to 54, characterized in that The first indication information is carried in one or more of the following signalings: radio resource control, medium access control, and downlink control information.

56. The device according to any one of claims 45 to 55, characterized in that The value of M is related to at least one of the following: the capability of the terminal device, the codebook type associated with the reference signal resource, and the number of ports included in each reference signal resource.

57. The device according to any one of claims 45 to 56, characterized in that The first indication information is a bitmap, and each bit in the bitmap corresponds to a reference signal resource. The bit value is a first value, indicating that the reference signal resource is a reference signal resource configured by the network device and needs to report channel state information; or, The value of the first indication information is associated with a reference signal resource configured by a network device among the N reference signal resources and requiring reporting of channel state information.

58. The device according to claim 57, characterized in that M R The value of is the number of bits in the bitmap whose bit value is the first value, and the M R Indicates the number of reference signal resources required to report channel state information configured by the network device.

59. The device according to claim 57 or 58, characterized in that The bits in the bitmap from high to low respectively correspond to reference signal resources with reference signal resource identifiers from small to large, or the bits in the bitmap from high to low respectively correspond to reference signal resources with reference signal resource identifiers from large to small.

60. The device according to any one of claims 45 to 59, characterized in that The M channel state information are determined based on at least one reference signal resource of the N reference signal resources and a reference signal resource for interference measurement, and the association relationship between the reference signal resource for interference measurement and the N reference signal resources is related to the type of the reference signal resource for interference measurement.

61. The device according to claim 60, characterized in that When the reference signal resource used for interference measurement is a non-zero power reference signal resource, the reference signal resource used for interference measurement corresponds one-to-one with the N reference signal resources; and / or, When the reference signal resource used for interference measurement is a zero-power reference signal resource, the number of the reference signal resource used for interference measurement is one, and the reference signal resource used for interference measurement corresponds to the N reference signal resources.

62. The device according to claim 61, characterized in that The non-zero power reference signal resource is a non-zero power channel state information reference signal NZP CSI-RS resource, and the zero power reference signal resource is a channel state information interference measurement CSI-IM resource.

63. A communication device, characterized in that Transceiver unit, The transceiver unit is configured to send first indication information, where the first indication information indicates the priorities of N reference signal resources, where N is an integer greater than 1; The transceiver unit is further configured to send a reference signal through the N reference signal resources; The transceiver unit is further used to receive M channel state information, where the M channel state information is obtained by measuring at least one reference signal resource of the N reference signal resources based on the priority of the N reference signal resources, and M is an integer greater than 1 or equal to 1.

64. The device according to claim 63, characterized in that The first information indicating the priorities of N reference signal resources includes: The first indication information indicates M R reference signal resources, the M R The reference signal resources are the reference signal resources for reporting channel state information configured by the communication device, M R is an integer greater than or equal to 0.

65. The device according to claim 64, characterized in that The M R When it is greater than 0, the M channel state information includes the M R The channel state information corresponding to the reference signal resources.

66. The device according to claim 65, characterized in that The M R The channel state information corresponding to the reference signal resources is located in non-M R Before the channel state information corresponding to the reference signal resources, the non-M R The reference signal resources are obtained by removing the M reference signal resources from the N reference signal resources by the terminal device. R Determined from reference signal resources other than reference signal resources.

67. The device according to any one of claims 64 to 66, characterized in that The M R The value of is related to the codebook type associated with the reference signal resource.

68. The device according to claim 67, characterized in that If the codebook type associated with the reference signal resource is single antenna panel type one codebook typeI-SinglePanel, then the M R The value of is 1 or 2; If the codebook type associated with the reference signal resource is type II codebook, then the M R The value of is 1.

69. The device according to any one of claims 63 to 68, characterized in that The reference signal resources associated with part of the channel state information among the M channel state information are determined by the terminal device, and the reference signal resources associated with the part of the channel state information are reference signal resources configured by the communication device and requiring reporting of the channel state information; or, The reference signal resources associated with the M channel state information are reference signal resources configured by the communication device and requiring reporting of channel state information; or, The reference signal resources associated with the M channel state information are determined by the terminal device.

70. The device according to claim 69, characterized in that The M channel state information includes MM R Reference signal resource identifiers, the M R Indicates the reference signal resource for reporting channel state information configured by the communication device, M R is an integer greater than or equal to 0.

71. The device according to any one of claims 63 to 70, characterized in that The first indication information indicates one or more of the following information: the value of M, the number of reference signal resources configured by the communication device among the N reference signal resources that need to report channel state information, and the reference signal resources configured by the communication device among the N reference signal resources that need to report channel state information.

72. The device according to claim 71, characterized in that The first indication information indicates the reference signal resource configured by the network device for reporting channel state information, M R The value of M is derived based on the reference signal resources for reporting channel state information configured by the network device. R Indicates the number of reference signal resources required to report channel state information configured by the network device.

73. The device according to any one of claims 63 to 72, characterized in that The first indication information is carried in one or more of the following signalings: radio resource control, medium access control, and downlink control information.

74. The device according to any one of claims 63 to 73, characterized in that The value of M is related to at least one of the following: the capability of the terminal device, the codebook type associated with the reference signal resource, and the number of ports included in each reference signal resource.

75. The device according to any one of claims 63 to 74, characterized in that The first indication information is a bitmap, and each bit in the bitmap corresponds to a reference signal resource. The bit value is a first value, indicating that the reference signal resource is a reference signal resource configured by the network device and needs to report channel state information; or, The value of the first indication information is associated with a reference signal resource configured by a network device among the N reference signal resources and requiring reporting of channel state information.

76. The device according to claim 75, characterized in that M R The value of is the number of bits in the bitmap whose bit value is the first value, and the M R Indicates the number of reference signal resources required to report channel state information configured by the network device.

77. The device according to claim 75 or 76, characterized in that The bits in the bitmap from high to low respectively correspond to reference signal resources with reference signal resource identifiers from small to large, or the bits in the bitmap from high to low respectively correspond to reference signal resources with reference signal resource identifiers from large to small.

78. The device according to any one of claims 63 to 77, characterized in that The M channel state information are determined based on at least one reference signal resource of the N reference signal resources and a reference signal resource for interference measurement, and the association relationship between the reference signal resource for interference measurement and the N reference signal resources is related to the type of the reference signal resource for interference measurement.

79. The device according to claim 78, characterized in that When the reference signal resource used for interference measurement is a non-zero power reference signal resource, the reference signal resource used for interference measurement corresponds one-to-one with the N reference signal resources; and / or, When the reference signal resource used for interference measurement is a zero-power reference signal resource, the number of the reference signal resource used for interference measurement is one, and the reference signal resource used for interference measurement corresponds to the N reference signal resources.

80. The device according to claim 79, characterized in that The non-zero power reference signal resource is a non-zero power channel state information reference signal NZP CSI-RS resource, and the zero power reference signal resource is a channel state information interference measurement CSI-IM resource.

81. A communication device, characterized in that The method comprises a module or unit for executing the method of any one of claims 1 to 22, or comprises a module or unit for executing the method of any one of claims 23 to 44.

82. A communication device, characterized in that The device comprises a processor configured to execute a computer program or instruction so as to cause the device to perform the method according to any one of claims 1 to 22, or to perform the method according to any one of claims 23 to 44.

83. The device according to claim 82, characterized in that The apparatus further comprises a memory for storing the computer program or instructions; and / or, The apparatus further includes a communication interface coupled to the processor, wherein the communication interface is configured to input and / or output information.

84. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program or instructions. When the computer program or instructions are executed on the communication device, the communication device executes the method according to any one of claims 1 to 22, or the communication device executes the method according to any one of claims 23 to 44.

85. A computer program product, characterized in that The computer program product comprises a computer program or instructions for executing the method according to any one of claims 1 to 22, or the computer program product comprises a computer program or instructions for executing the method according to any one of claims 23 to 44.

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