Communication method and communication apparatus

Abstract

The present application provides a communication method and a communication apparatus. The method may comprise: receiving first indication information, wherein the first indication information indicates monitoring information, the monitoring information includes monitoring information of each group of parameters among N groups of parameters, the N groups of parameters are used for determining a precoding matrix, the monitoring information of each group of parameters among the N groups of parameters is used for determining whether said group of parameters needs to be updated, and N is an integer greater than or equal to 1; and determining the monitoring information. In the present application, the monitoring information of the groups of parameters is designed, and whether the groups of parameters need to be updated is determined on the basis of the monitoring information of the groups of parameters, so that differentiated parameter monitoring and updating can be realized, thereby reducing update costs and improving the communication performance.

Description

Communication methods and communication devices

[0001] This application claims priority to Chinese Patent Application No. 202411048470.5, filed with the China National Intellectual Property Administration on July 31, 2024, entitled "Communication Method and Communication Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of wireless communication, and more specifically, to a communication method and a communication device. Background Technology

[0003] Sensor fusion has become a research hotspot as one of the potential key technologies for future mobile communication systems. In the verification of perception-assisted precoding design, it is mainly assumed that the sensing parameters required for the precoding scheme design remain unchanged over a period of time. However, in actual system transmission, these parameters may change with the relative physical positions of terminal devices and network devices. Therefore, the update mechanism for the design parameters is a problem worth considering. Summary of the Invention

[0004] This application provides a communication method and a communication device that can monitor and update parameters, thereby maximizing communication performance.

[0005] Firstly, a communication method is provided. This method can be applied to a communication device, that is, the communication device can be a communication equipment (such as a terminal device or a network device), or the communication device can be a component of a communication equipment (such as a chip, chip system, circuit, or communication module).

[0006] The method may include: receiving first indication information, the first indication information indicating monitoring information, the monitoring information including monitoring information of each of N sets of parameters, the N sets of parameters being used to determine a precoding matrix, the monitoring information of each of the N sets of parameters being used to determine whether the set of parameters needs to be updated, where N is an integer greater than or equal to 1; and determining the monitoring information.

[0007] Secondly, a communication method is provided. This method can be applied to a communication device, that is, the communication device can be a communication equipment (such as a terminal device or a network device), or the communication device can be a component of a communication equipment (such as a chip or chip system or circuit or communication module).

[0008] The method may include: determining monitoring information, the monitoring information including monitoring information of each of N sets of parameters, the N sets of parameters being used to determine a precoding matrix, the monitoring information of each of the N sets of parameters being used to determine whether the set of parameters needs to be updated, where N is an integer greater than or equal to 1; and sending first indication information, the first indication information indicating the monitoring information.

[0009] Based on the above technical solution, it is possible to determine whether a parameter needs to be updated based on the monitoring information. This reduces costs compared to solutions that continuously update parameters; and compared to solutions where parameters remain unchanged, this solution enables parameters to match the current communication situation, improving communication performance. Furthermore, different parameters (or different groups of parameters) can correspond to different monitoring information, allowing for the design of appropriate monitoring information based on the parameter type, thus achieving differentiated parameter monitoring and updates.

[0010] In conjunction with the first or second aspect, in some implementations, the N sets of parameters include the first set of parameters, and the method further includes: sending or receiving second indication information, the second indication information indicating that the first set of parameters needs to be updated.

[0011] In conjunction with the first or second aspect, in some implementations, the second indication information also indicates resource information of a reference signal used to measure the first set of parameters.

[0012] In one example, the terminal device sends the second indication information, and the second indication information also indicates the resource information of the reference signal.

[0013] In another example, the network device receives the second indication information, and the second indication information also indicates resource information of the reference signal.

[0014] Based on the above technical solution, when the terminal device determines that a parameter needs to be updated based on the monitoring information, it can send an indication message, which also indicates the resources of the preferred or suggested reference signal. This allows the network device to consider the resource information of the reference signal suggested by the terminal device when configuring the reference signal for measuring the first set of parameters. Therefore, the terminal device can suggest suitable reference signal resources to the network device based on the actual communication situation and / or the parameter to be updated, thereby improving the user experience of the terminal device.

[0015] In another example, the terminal device receives the second indication information, and the second indication information also indicates resource information of the reference signal.

[0016] In another example, the network device sends the second indication information, and the second indication information also indicates resource information of the reference signal.

[0017] Based on the above technical solution, when the network device determines that the parameter needs to be updated based on the monitoring information of the parameter, it can send an indication message and also indicate the resource of the reference signal. In this way, the terminal device can directly receive the reference signal based on the resource information of the reference signal, measure the reference signal, and then obtain the updated first parameter.

[0018] In conjunction with the first or second aspect, in some implementations, after sending the second indication information, the method further includes: receiving a reference signal; measuring the first set of parameters based on the reference signal; and sending a first value or a first offset, wherein the first value is the value of the first set of parameters obtained based on the reference signal, the first offset is the offset between the first value and a second value, and the second value is the value of the first set of parameters before the measurement based on the reference signal.

[0019] Based on the above technical solution, when the parameter needs to be updated based on the monitoring information of the parameter, a reference signal can be received and the parameter can be measured. The measurement result of the parameter can be fed back, so that the other side can directly know the updated parameter; or an offset can be fed back to reduce signaling overhead.

[0020] In conjunction with the first or second aspect, in some implementations, the method further includes, before receiving the reference signal, receiving third indication information, the third indication information indicating resource information of the reference signal.

[0021] In conjunction with the first or second aspect, in some implementations, the second indication information indicates that the first set of parameters needs to be updated, including: the second indication information indicates at least one of the following: resource information of a reference signal, the first set of parameters, and indication information indicating that the first set of parameters needs to be updated; wherein the reference signal is used to measure the first set of parameters.

[0022] Based on the above technical solution, when an indicator parameter needs to be updated, as an example, the resource information of the parameter and / or the reference signal can be directly indicated. In this way, the parameter needs to be updated directly based on the parameter and / or the resource information of the parameter, thus reducing signaling overhead.

[0023] In conjunction with the first or second aspect, in some implementations, the resource information of the reference signal includes the first set of parameters; or, the resource information of the reference signal is associated with the first set of parameters.

[0024] Based on the above technical solutions, the resource information of the reference signal includes parameters to be updated (or measured), thus allowing the determination of which type of parameter to be measured based on the reference signal. Alternatively, the resource information of the reference signal is correlated with the parameters, allowing the determination of which type of parameter to be measured based on the reference signal, both the resource information and the correlation.

[0025] In conjunction with the first or second aspect, in some implementations, after receiving the second indication information, the method further includes: sending a reference signal; receiving a first value or a first offset, wherein the first value is the value of the first set of parameters obtained based on the reference signal, the first offset is the offset between the first value and the second value, and the second value is the value of the first set of parameters before the measurement of the reference signal.

[0026] In conjunction with the first or second aspect, in some implementations, before transmitting the reference signal, the method further includes: transmitting third indication information, the third indication information indicating resource information of the reference signal.

[0027] In conjunction with the first or second aspect, in some implementations, the resources of the reference signal are determined based on the first set of parameters.

[0028] Based on the above technical solution, the reference signal resources used for measuring parameters can be determined based on these parameters, thus allowing for the configuration of appropriate reference signal resources according to the characteristics of the parameters.

[0029] In conjunction with the first or second aspect, in some implementations, the resource information of the reference signal includes at least one of the following: the density of the reference signal, the frequency domain information of the reference signal, and the time domain information of the reference signal.

[0030] In conjunction with the first or second aspect, in some implementations, the N sets of parameters include the first set of parameters, and the method further includes: sending or receiving fourth indication information, the fourth indication information indicating that the first set of parameters does not need to be updated.

[0031] In conjunction with the first or second aspect, in some implementations, the N sets of parameters include the first set of parameters, and the method further includes: periodically measuring the first set of parameters based on the period of the first set of parameters.

[0032] In conjunction with the first or second aspect, in some implementations, the N sets of parameters further include a second set of parameters, wherein the period of the reference signal used to measure the first set of parameters is different from the period of the reference signal used to measure the second set of parameters; and / or, the density of the reference signal used to measure the first set of parameters is different from the density of the reference signal used to measure the second set of parameters.

[0033] Based on the above technical solution, different parameters can correspond to different cycles, which can realize the design of a suitable update cycle based on the characteristics of the parameters, and minimize the overhead caused by frequent updates.

[0034] In conjunction with the first or second aspect, in some implementations, the method further includes: sending or receiving fifth indication information, the fifth indication information indicating a second offset, the second offset being an offset of channel state information, the second offset being determined based on at least one set of parameters from the N sets of parameters.

[0035] Based on the above technical solution, by using the offset of feedback channel state information, the measurement and feedback overhead can be greatly reduced.

[0036] In conjunction with the first or second aspect, in some implementations, the channel state information includes at least one of the following: precoding matrix indicator, channel quality indicator, rank indicator, and MCS.

[0037] In conjunction with the first or second aspect, in some implementations, the N sets of parameters include a first set of parameters, and the monitoring information of the first set of parameters includes monitoring indicators and / or threshold information of the first set of parameters, wherein the monitoring indicators include at least one of the following: channel-type parameters, end-to-end performance indicators, and status indicators.

[0038] In conjunction with the first or second aspect, in some implementations, the N sets of parameters include at least one of the following parameters: angle, time delay, power, and Doppler.

[0039] Thirdly, a communication method is provided. This method can be applied to a communication device, that is, the communication device can be a communication equipment (such as a terminal device), or the communication device can be a component of a communication equipment (such as a chip, chip system, circuit, or communication module).

[0040] The method may include: determining a second offset based on location information, the second offset indicating an offset of channel state information, wherein the offset of the channel state information is associated with the location information; and transmitting the second offset.

[0041] In conjunction with the third aspect, in some implementations of the third aspect, the location information includes at least one of the following: the moving distance of the terminal device and the location range of the terminal device.

[0042] Fourthly, a communication method is provided. This method can be applied to a communication device, that is, the communication device can be a communication equipment (such as a terminal device or a network device), or the communication device can be a component of a communication equipment (such as a chip or chip system or circuit or communication module).

[0043] The method may include: determining monitoring information, the monitoring information including monitoring information for each of N sets of parameters, the N sets of parameters being used to determine a precoding matrix, the monitoring information for each of the N sets of parameters being used to determine whether the set of parameters needs to be updated, where N is an integer greater than or equal to 1; sending second indication information, the second indication information indicating that the first set of parameters in the N sets of parameters needs to be updated; or, sending fourth indication information, the fourth indication information indicating that the first set of parameters in the N sets of parameters does not need to be updated.

[0044] Fifthly, a communication method is provided. This method can be applied to a communication device, that is, the communication device can be a communication equipment (such as a terminal device or a network device), or the communication device can be a component of a communication equipment (such as a chip or chip system or circuit or communication module).

[0045] The method may include: receiving second indication information, the second indication information indicating that the first group of parameters in N groups of parameters should be updated; or, receiving fourth indication information, the fourth indication information indicating that the first group of parameters in N groups of parameters does not need to be updated, wherein whether the first group of parameters needs to be updated is determined based on the monitoring information of the first group of parameters in the monitoring information, the monitoring information including the monitoring information of each group of parameters in the N groups of parameters, the N groups of parameters being used to determine the precoding matrix, the monitoring information of each group of parameters in the N groups of parameters being used to determine whether the group of parameters needs to be updated, and N being an integer greater than or equal to 1.

[0046] Based on the above technical solution, it is possible to determine whether a parameter needs to be updated based on its monitoring information, and signaling can be used to instruct the other side whether the parameter needs to be updated. This reduces costs compared to solutions that continuously update parameters; and compared to solutions where parameters remain unchanged, this solution enables parameters to match the current communication situation, improving communication performance. Furthermore, different parameters (or different groups of parameters) can correspond to different monitoring information, allowing for the design of appropriate monitoring information based on the parameter type, achieving differentiated parameter monitoring and updates.

[0047] In conjunction with the fourth or fifth aspect, in some implementations, the second indication information also indicates resource information of a reference signal used to measure the first set of parameters.

[0048] In conjunction with the fourth or fifth aspect, in some implementations, after sending the second indication information, the method further includes: receiving a reference signal; measuring the first set of parameters based on the reference signal; and sending a first value or a first offset, wherein the first value is the value of the first set of parameters obtained based on the reference signal, the first offset is the offset between the first value and a second value, and the second value is the value of the first set of parameters before the measurement based on the reference signal.

[0049] In conjunction with the fourth or fifth aspect, in some implementations, the method further includes, before receiving the reference signal, receiving third indication information, the third indication information indicating resource information of the reference signal.

[0050] In conjunction with the fourth or fifth aspect, in some implementations, the second indication information indicates that the first set of parameters needs to be updated, including: the second indication information indicates at least one of the following: resource information of the reference signal, the first set of parameters, and indication information that the first set of parameters needs to be updated; wherein the reference signal is used to measure the first set of parameters.

[0051] In conjunction with the fourth or fifth aspect, in some implementations, the resource information of the reference signal includes the first set of parameters; or, the resource information of the reference signal is associated with the first set of parameters.

[0052] In conjunction with the fourth or fifth aspect, in some implementations, the resources of the reference signal are determined based on the first set of parameters.

[0053] In conjunction with the fourth or fifth aspect, in some implementations, the resource information of the reference signal includes at least one of the following: the density of the reference signal, the frequency domain information of the reference signal, and the time domain information of the reference signal.

[0054] In conjunction with the fourth or fifth aspect, in some implementations, the method further includes: periodically measuring the first set of parameters based on the period of the first set of parameters.

[0055] In conjunction with the fourth or fifth aspect, in some implementations, the N sets of parameters further include a second set of parameters, wherein the period of the reference signal used to measure the first set of parameters is different from the period of the reference signal used to measure the second set of parameters; and / or, the density of the reference signal used to measure the first set of parameters is different from the density of the reference signal used to measure the second set of parameters.

[0056] In conjunction with the fourth or fifth aspect, in some implementations, the method further includes: sending a fifth indication message, the fifth indication message indicating a second offset, the second offset being an offset of channel state information, the second offset being determined based on at least one set of parameters from the N sets of parameters.

[0057] In conjunction with the fourth or fifth aspect, in some implementations, the channel state information includes at least one of the following: precoding matrix indicator, channel quality indicator, rank indicator, and MCS.

[0058] In conjunction with the fourth or fifth aspect, in some implementations, the monitoring information of the first set of parameters includes monitoring indicators and / or threshold information of the first set of parameters, wherein the monitoring indicators include at least one of the following: channel parameters, end-to-end performance indicators, and status indicators.

[0059] In conjunction with the fourth or fifth aspect, in some implementations, the first set of parameters includes at least one of the following parameters: angle, time delay, power, and Doppler.

[0060] For the beneficial effects and possible designs of the fourth and fifth aspects, please refer to the relevant descriptions in the first or second aspects, which will not be repeated here.

[0061] Sixthly, a communication apparatus is provided for performing the methods of any one of the first to fifth aspects and any possible implementation thereof. Specifically, the apparatus may include units and / or modules for performing the methods of any one of the first to fifth aspects and any possible implementation thereof, such as processing units and / or communication units.

[0062] In one implementation, the device is a communication device (such as a terminal device or a network device). When the device is a communication device, the communication unit can be a transceiver or an input / output interface; the processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0063] In another implementation, the device is a chip, chip system, circuit, or communication module for communication equipment (such as terminal equipment or network equipment). When the device is a chip, chip system, or circuit for communication equipment, 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; the processing unit may be at least one processor, processing circuit, or logic circuit.

[0064] A seventh aspect provides a communication device comprising: at least one processor configured to cause the device to perform any of the first to fifth aspects and any possible implementation thereof.

[0065] Optionally, the at least one processor is configured to execute computer programs or instructions to perform the methods of any one of the first to fifth aspects and any possible implementation thereof.

[0066] Optionally, the device further includes a memory for storing the computer program or instructions.

[0067] Optionally, the at least one processor is coupled to a memory for storing the computer program or instructions. The memory may be located externally to the device.

[0068] Optionally, the device also includes a communication interface through which the processor reads instructions from memory. This can be understood as the communication interface being coupled to the processor and used to input computer programs or instructions to the processor, or to output information from the processor.

[0069] Unless otherwise specified, or if the transmission and acquisition / reception operations involved do not contradict their actual function or internal logic in the relevant description, they can be understood as output, input, or other operations, or as transmission and reception operations performed by radio frequency circuits and antennas. This application does not limit them in this regard.

[0070] In one implementation, the device is a communication device (such as a terminal device or a network device).

[0071] In another implementation, the device is a chip, chip system, circuit, or communication module for communication equipment (such as terminal equipment or network equipment). Optionally, the chip is a modem chip, also known as a baseband chip, or a system-on-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip.

[0072] Eighthly, a computer-readable storage medium is provided that stores a computer program (e.g., program code) or instructions that, when executed on a communication device, cause the communication device to perform the methods of any one of the first to fifth aspects and any possible implementation thereof.

[0073] Ninth aspect, a computer program product containing instructions is provided, which, when run on a computer, causes the computer to perform the methods of any one of the first to fifth aspects and any possible implementation thereof.

[0074] A tenth aspect provides a communication system, including a first communication device and a second communication device. The first communication device is configured to execute the method provided in any implementation of the first aspect, and the second communication device is configured to execute the method provided in any implementation of the second aspect; or, the first communication device is configured to execute the method provided in any implementation of the fourth aspect, and the second communication device is configured to execute the method provided in any implementation of the fifth aspect. Attached Figure Description

[0075] Figure 1 is a schematic diagram of a wireless communication system applicable to an embodiment of this application.

[0076] Figure 2 is a schematic diagram of a communication method 200 provided in an embodiment of this application.

[0077] Figure 3 is a schematic diagram of monitoring information provided according to an embodiment of this application.

[0078] Figure 4 is a schematic diagram of reference signals for measuring different sets of parameters according to an embodiment of this application.

[0079] Figure 5 is a schematic diagram of multipath and port according to an embodiment of this application.

[0080] Figure 6 is a schematic diagram of the mobile state of the terminal device provided in the embodiment of this application.

[0081] Figure 7 is a schematic diagram of a communication method 700 provided in an embodiment of this application.

[0082] Figure 8 is a schematic diagram of a communication method 800 provided in an embodiment of this application.

[0083] Figure 9 is a schematic diagram of a communication method 900 provided in an embodiment of this application.

[0084] Figure 10 is a schematic diagram of a communication device 1000 provided in an embodiment of this application.

[0085] Figure 11 is a schematic diagram of another communication device 1100 provided in an embodiment of this application.

[0086] Figure 12 is a schematic diagram of a chip system 1200 provided in an embodiment of this application. Detailed Implementation

[0087] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0088] Before introducing the scheme of this application, the following points should be noted.

[0089] (1) In this application, "instruction" can include direct instruction, indirect instruction, explicit instruction, implicit instruction, etc. When describing an instruction information as indicating A, it can be understood that the instruction information carries A, carries the identifier of A, carries B which is associated with A, carries the identifier of B which is associated with A, etc. In other words, if the receiving side of an instruction information can determine A based on the instruction information, it can be described as the instruction information indicating A, and the specific method of determination is not limited. When it is understood that the instruction information carries A, "instruction" can be replaced with "includes". In this case, a statement such as "send / receive instruction information, the instruction information indicates A" can be replaced with "send / receive A".

[0090] In this application, the information indicated by the instruction information is called the information to be instructed. In specific implementations, there are many ways to indicate the information to be instructed, such as, but not limited to, directly indicating the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly indicate the information to be instructed by indicating other information, where there is a relationship between the other information and the information to be instructed. It can also indicate only a part of the information to be instructed, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing instruction overhead to some extent. Furthermore, the information to be instructed can be sent as a whole or divided into multiple sub-information pieces, and the sending period and / or timing of these sub-information pieces can be the same or different.

[0091] (2) In this application, the expression " / " is used to indicate that the objects before and after are in an "or" relationship; for example, A / B can mean: A or B. The expression "and / or" is used to indicate that the objects before and after are in a relationship of either "and" or "or"; for example, A and / or B can mean the following: A exists alone, B exists alone, A and B exist simultaneously, where A and B can be single or multiple. "At least one of the following" or similar expressions are used to indicate any combination of the listed items; for example, at least one of A, B and / or C can mean the following: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, B and C exist simultaneously, A and C exist simultaneously, A, B and C exist simultaneously, where A, B, and C can be single or multiple.

[0092] (3) In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include direct transmission via the air interface or indirect transmission by other units or modules via the air interface. "Receive information from YY" can be understood as the source of the information being YY, which may include direct reception from YY via the air interface or indirect reception from YY by other units or modules via the air interface. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface. In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via a bus, wiring, or interface.

[0093] (4) In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terms and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0094] (5) In this application, "first," "second," and "#1," "#2," and "#A" are merely for descriptive convenience and are used to distinguish objects, and are not intended to limit the scope of the embodiments of this application. They are not used to describe the order or sequence of features. It should be understood that such described objects can be interchanged where appropriate in order to describe solutions other than those in the embodiments of this application.

[0095] (6) In this application, "predefined" can mean a standard protocol predefined, or it can mean a pre-agreed or pre-negotiated agreement between devices. Here, "protocol" can refer to a standard protocol in the field of communications, for example, it may include fourth-generation (4G) protocols. th Generation 4G network, fifth generation (5G) network th This application does not limit the scope to network protocols such as 5G (generation, 5G), New Radio (NR), 5.5G, and related protocols used in future communication networks.

[0096] (7) In this application, the words “exemplary,” “for example,” etc., are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as an “example” in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the word “example” is intended to present the concept in a concrete manner. In the embodiments of this application, “of,” “corresponding, relevant,” and “corresponding” may sometimes be used interchangeably, and it should be noted that their intended meanings are consistent unless their distinction is emphasized.

[0097] First, let me introduce the communication system to which this application applies.

[0098] The technical solutions provided in this application can be applied to various communication systems, such as 5th generation (5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, and LTE time division duplex (TDD) systems. The technical solutions provided in this application can also be applied to future communication network systems. Furthermore, the technical solutions provided in this application can 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 non-terrestrial network (NTN) systems such as inter-satellite communication and satellite communication.

[0099] As an example, a satellite communication system includes a satellite base station and terminal equipment. The satellite base station provides communication services to the terminal equipment. Satellite base stations can also communicate with each other. A satellite can act as a base station or as a terminal device. Here, "satellite" can refer to drones, hot air balloons, low-Earth orbit satellites, medium-Earth orbit satellites, high-Earth orbit satellites, etc. "Satellite" can also refer to non-terrestrial base stations or non-terrestrial equipment.

[0100] As an example, V2X communication can include: vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, and vehicle-to-network (V2N) communication.

[0101] In a communication system, a device can send signals to or receive signals from another device. These signals can include information, signaling, or data. The device can also be replaced by an entity, network entity, communication equipment, communication module, node, communication node, etc. This application uses a device as an example for description.

[0102] The terminal device in this application embodiment can be a device or module that accesses the aforementioned communication system and has corresponding communication functions. The terminal device can include various devices with wireless communication capabilities, which can be used to connect people, objects, machines, etc. The terminal device can be widely applied in various scenarios, such as: cellular communication, D2D, V2X, peer-to-peer, M2M, MTC, IoT, virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, drones, robots, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery, etc. The terminal device can be a terminal in any of the above scenarios, such as an MTC terminal, an IoT terminal, etc. Terminal equipment can be user equipment (UE), terminal, fixed equipment, mobile station equipment or mobile equipment, subscriber unit, handheld device, vehicle-mounted equipment, wearable device, cellular phone, smartphone, session initiation protocol (SIP) phone, wireless data card, personal digital assistant (PDA), computer, tablet computer, laptop computer, wireless modem, handset, laptop computer, computer with wireless transceiver capability, smart book, vehicle, satellite, global positioning system (GPS) device, target tracking device, aircraft (e.g., drone, helicopter, multiple helicopters, four helicopters, or airplanes), ship, remote control device, smart home device, industrial equipment, transportation vehicle with wireless communication capability, communication module, or roadside unit with terminal function, all conforming to the 3rd generation partnership project (3GPP) standard. The device may be a wireless communication unit (RSU), or a device built into the aforementioned device (e.g., a communication module, modem, or chip in the aforementioned device), or other processing devices connected to the wireless modem.

[0103] It should be understood that in certain scenarios, a UE can also be used as a base station. For example, a UE can act as a scheduling entity, providing sidelink signaling between UEs in scenarios such as V2X, D2D, or end-to-end.

[0104] In this embodiment, the device for implementing the functions of a terminal device, i.e., the terminal device, can be the terminal device itself, or it can be any device capable of supporting the terminal device in implementing the functions, such as a chip system, chip, circuit, or communication module (i.e., a communication module that performs communication functions). This device can be installed in the terminal device. In this embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. Furthermore, the device can also be configured with program instructions for performing corresponding communication functions.

[0105] The network device in this application embodiment can be a device or module with corresponding communication functions. The network device can be a device used to communicate with terminal devices; it can also be called an access network device or a wireless access network device, such as a base station. In this application embodiment, the network device can refer to a radio access network (RAN) node (or device) that connects the terminal device to the wireless network. A base station can broadly encompass, or be replaced by, various names including: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitter, master station, auxiliary station, multiple standard radio (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. A base station can be a macro base station, micro base station, relay node, donor node, or similar, or a combination thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. A base station can also be a mobile switching center, a device that performs base station functions in D2D, V2X, and M2M communications, a network-side device in future communication networks, or a device that performs base station functions in future communication systems. A base station can support networks using the same or different access technologies. The embodiments of this application do not limit the specific technologies or device forms used in the network equipment.

[0106] 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 depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0107] In some deployments, the network devices mentioned in the embodiments of this application may be devices including CU, or DU, or devices including CU and DU, or devices with control plane CU nodes (central unit-control plane (CU-CP)) and user plane CU nodes (central unit-user plane (CU-UP)) and DU nodes.

[0108] In some deployments, multiple RAN nodes collaborate to assist terminal devices in achieving wireless access, with different RAN nodes each implementing some of the base station's functions. For example, RAN nodes can be CUs, DUs, CU-CPs, CU-UPs, or radio units (RUs). CUs and DUs can be configured separately or included in the same network element, such as a BBU. RUs can be included in radio equipment or radio units, such as RRUs, AAUs, or RRHs.

[0109] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, a radio access network can also be an open radio access network (O-RAN) architecture. In an O-RAN system, CU can also be called an open CU (open CU, O-CU), DU can also be called an open DU (open DU, O-DU), CU-CP can also be called an open CU-CP (O-CU-CP), CU-UP can also be called an open CU-UP (O-CU-UP), and RU can also be called an open RU (open RU, O-RU). Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.

[0110] In this embodiment, the device for implementing the functions of a network device can be a network device itself, or a device capable of supporting the network device in implementing those functions, such as a chip system, chip, circuit, or communication module (i.e., a communication module that performs communication functions). This device can be installed within the network device. In this embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. Furthermore, the device can be configured with program instructions for performing corresponding communication functions. This embodiment only uses a network device as an example to illustrate the device for implementing the functions of a network device, and does not limit the solution of this embodiment.

[0111] Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located.

[0112] The communication system applicable to the embodiments of this application is briefly described below with reference to Figure 1.

[0113] Referring to Figure 1, as an example, Figure 1 is a schematic diagram of a wireless communication system applicable to an embodiment of this application. As shown in Figure 1, the wireless communication system includes a wireless access network 100. The wireless access network 100 may be a next-generation (e.g., future or higher version) wireless access network or a traditional (e.g., 5G, 4G, 3G, or 2G) wireless access network. One or more terminal devices (120a-120j, collectively referred to as 120) may be interconnected or connected to one or more network devices (110a, 110b, collectively referred to as 110) in the wireless access network 100. Network elements in the wireless communication system are connected through interfaces (e.g., NG, Xn) or air interfaces.

[0114] When network devices and terminal devices communicate, the network device can manage one or more cells, and a cell can include at least one terminal device. A cell can be understood as an area within the wireless signal coverage range of the network device.

[0115] Figure 1 is just a schematic diagram. The wireless communication system may also include other devices, such as core network devices, wireless relay devices and / or wireless backhaul devices, which are not shown in Figure 1.

[0116] To facilitate understanding of the embodiments of this application, the terms used in this application will be briefly explained.

[0117] 1. Multiple-input multiple-output (MIMO) technology: Utilizing spatial resources, MIMO can increase the capacity and spectral efficiency of a communication system by leveraging array gain, multiplexing and diversity gain, and interference cancellation gain in space without increasing system bandwidth. For example, in LTE systems, MIMO systems can support up to eight layers of transmission using multiple antennas at both the transmitting and receiving ends.

[0118] 2. Reference signal (RS): This refers to the physical signal that transmits a sequence to achieve a specific function. Specifically, the reference signal is a physical signal generated by mapping a specific sequence onto corresponding resources according to a pre-defined resource mapping method. The reference signal can also be called a pilot, reference sequence, or reference signal.

[0119] In this application, the reference signal, as an example, can be any of the following: channel state information reference signal (CSI-RS), sounding reference signal (SRS), demodulation reference signal (DMRS), phase track reference signal (PT-RS), cell reference signal (CRS), etc. Among them, DMRS can be used for demodulation of the physical downlink shared channel (PDSCH) or physical uplink shared channel (PUSCH). CSI-RS can be used for channel information measurement and to report channel state information (CSI), which includes at least one of the following: precoding matrix indicator (PMI), rank indication (RI), and channel quality indicator (CQI).

[0120] It should be understood that the reference signals listed above are merely examples and should not be construed as limiting this application. This application does not preclude the possibility of defining other reference signals in future agreements to achieve the same or similar functions.

[0121] 3. Port: Also known as an antenna port, it can include a transmit port and a receive port. One port can be configured for each virtual antenna. Each virtual antenna can be a weighted combination of multiple physical antennas, and each port can correspond to a reference signal.

[0122] In this context, the transmitting port can be understood as a virtual antenna recognized by the receiving end. The receiving port can be understood as the receiving antenna of the receiving end. For example, in downlink transmission, the receiving port can refer to the receiving antenna of the terminal device; similarly, the receiving port can also be understood as a virtual antenna.

[0123] 4. Angle Vector: This can be understood as a precoding vector used for beamforming a signal (such as a reference signal). Beamforming gives the transmitted signal a certain spatial directionality. Therefore, the process of precoding a signal based on the angle vector can also be regarded as a spatial domain (or simply, spatial domain) precoding process. Thus, the angle vector can also be called a spatial domain vector, beam vector, etc.

[0124] An angle vector can be a vector of length T. Here, T represents the number of transmit antenna ports, where T > 1 and is an integer. An angle vector of length T contains T spatial weights (or simply weights). These T weights are used to weight the T transmit antenna ports, giving the signals emitted by these T transmit antenna ports a certain spatial directivity, thereby achieving beamforming.

[0125] Precoding the signal based on different angle vectors is equivalent to beamforming the transmitting antenna port based on different angle vectors, so that the transmitted signal has different spatial directivity.

[0126] It should be understood that the angle vector is a form proposed in this application for representing angles. This application does not preclude the possibility of defining other names to represent the same or similar meanings in future agreements.

[0127] 5. Delay Vector: Also known as a frequency domain vector. A delay vector is a vector that represents the channel's variation in the frequency domain. Precoding a signal based on a delay vector essentially involves rotating the phase of each frequency domain cell based on the elements of the delay vector, thereby pre-compensating for the frequency selectivity caused by multipath delay through the precoded signal. Therefore, the process of precoding a signal based on a delay vector can be considered as a frequency domain precoding process. Precoding a signal based on different delay vectors is equivalent to rotating the phase of each frequency domain cell of the channel based on different delay vectors. Furthermore, different resources (e.g., resource elements, REs) within the same frequency domain cell can have different phase rotation angles due to the different delay vectors they are loaded with.

[0128] 6. Sensing-Assisted Communication: Sensing fusion has become a research hotspot as one of the potential key technologies for future mobile communication systems. Acquiring sensing signals can enhance wireless communication performance in certain aspects; simultaneously, the performance of traditional sensing services can also be improved using wireless communication systems.

[0129] For example, based on the assumption of sensing-assisted communication characteristics in future communication systems, MIMO systems can achieve more efficient data transmission without relying on traditional CSI acquisition mechanisms, based on the acquired sensing parameters. As an example, sensing parameters include multipath parameters, such as multipath angle, delay, power, polarization, Doppler, and phase information. For example, when the MIMO algorithm fully utilizes the above parameters to achieve performance enhancement, its potential gains may be reflected in the following two aspects: (1) saving resource overhead for channel acquisition and data demodulation reference signals; (2) simplifying the CSI acquisition and data transmission process, alleviating problems such as large transmission delay and high configuration mechanism complexity caused by the CSI acquisition process, radio resource control (RRC), and downlink control information (DCI) pilot configuration.

[0130] In existing solutions, sensing parameters can be used to assist in CSI acquisition and data transmission design. Taking precoding in data transmission as an example, based on the acquisition of multipath parameters, the traditional data transmission process can be simplified while improving performance. For example, for certain multipath parameters, such as the power of the receiver path (or sub-path, or path cluster), the power of the transmitter path (or sub-path, or path cluster), delay, angle, etc., since these parameters mainly depend on environmental scattering information, they do not need to be frequently updated or indicated under stable environmental conditions. Therefore, acceptable precoding performance can be achieved through long-term measurement feedback (i.e., a long time interval between two adjacent measurement feedbacks).

[0131] As shown above, the verification of perception-assisted precoding design mainly assumes that the perception parameters required for the precoding scheme are obtained in a long-term manner; in other words, it mainly assumes that the precoding scheme remains unchanged over a period of time. However, in actual system transmission, on the one hand, the parameters obtained in a long-term manner may change with the relative physical positions of the terminal equipment and network equipment; on the other hand, the parameter assumptions and accuracies corresponding to different transmission requirements may be different. For example, when an angular shift occurs, such as a 10-degree shift, the system throughput performance decreases by about 10%; if a 20-degree shift is added, the performance of the perception-assisted precoding scheme is even lower than that of the scheme using reference signals and instantaneous measurement feedback.

[0132] In view of this, considering that parameters obtained through long-term methods may change with the relative physical location of terminal devices and network devices, and that the parameter assumptions and accuracies corresponding to different transmission requirements may differ, this application proposes an update mechanism for such parameters. Furthermore, different monitoring information is designed for different parameter types, and various parameters (or groups of parameters, or individual parameters) are monitored based on their respective monitoring information, thereby enabling differentiated parameter updates and reducing the overhead of updates.

[0133] The methods provided by the embodiments of this application will be described in detail below with reference to the accompanying drawings. The embodiments provided by this application can be applied to the scenarios shown in the above figures and are not limited thereto. Furthermore, the terms used below are explained in the preceding text and will not be repeated hereafter. In the following method embodiments, terminal devices and network devices are used as examples for illustration. The terminal device can also be replaced by components of a terminal device, such as a chip, chip system, circuit, or communication module. The network device can also be replaced by components of a network device, such as a chip, chip system, circuit, or communication module. Furthermore, the steps described below as being performed by a single execution entity can also be divided into steps performed by multiple execution entities, which can be logically and / or physically separated.

[0134] Referring to Figure 2, as an example, Figure 2 is a schematic diagram of a communication method 200 provided in an embodiment of this application. The method 200 shown in Figure 2 may include the following steps.

[0135] S210, Terminal equipment and / or network equipment determine monitoring information.

[0136] The monitoring information includes monitoring information for each of the N sets of parameters, where N is an integer greater than or equal to 1.

[0137] N sets of parameters, also known as N types of parameters or N kinds of parameters. A set of parameters may contain one parameter or multiple parameters. The number of parameters in different sets may be the same or different. The parameters in different sets are not completely identical.

[0138] The N sets of parameters are used to determine the precoding matrix. In other words, the network device generates the precoding matrix based on these N sets of parameters when determining the precoding matrix.

[0139] As an example, N sets of parameters represent multipath information. Multipath information can represent the relevant information of each path when a signal is transmitted through a wireless channel, such as the multipath component parameters of the transmitting antenna, and / or the multipath component parameters of the receiving antenna. Multipath information can also be called multipath component (MPC) information.

[0140] Taking a certain set of parameters as an example, such as the first set of parameters, the first set of parameters may include at least one of the following information: angle, delay, power, polarization, Doppler, phase, etc.

[0141] The angle may include at least one of the following: horizontal angle of arrival (AOA), horizontal angle of departure (AOD), vertical angle of arrival (ZOA), and vertical angle of departure (ZOD). AOA and ZOA refer to the horizontal and vertical angles of arrival of the signal reaching the receiving antenna via the wireless channel, respectively, while AOD and ZOD refer to the horizontal and vertical angles of departure of the signal transmitted via the transmitting antenna, respectively.

[0142] In the embodiments of this application, each angle can be represented by an angle vector, and each time delay can be represented by a time delay vector. In other words, an angle vector can represent an angle, and a time delay vector can represent a time delay.

[0143] It is understood that, for ease of description, this application uses N groups of parameters as an example for illustration. As an example, N groups of parameters can also be a logical division method; in other words, multiple parameters are not explicitly grouped. For instance, for multiple parameters, if some of these parameters correspond to the same monitoring information, then these parameters can be considered a group of parameters.

[0144] Monitoring information can be used to monitor the performance of parameters, or in other words, to determine whether parameters need to be updated. Specifically, the monitoring information for each of the N sets of parameters is used to determine whether that set of parameters needs to be updated. For example, if the N sets of parameters include a first set and a second set, the monitoring information for the first set is used to determine whether the first set of parameters needs to be updated, and the monitoring information for the second set of parameters is used to determine whether the second set of parameters needs to be updated. Different sets of parameters may correspond to different monitoring information, or different sets of parameters may correspond to the same monitoring information; this is not limited.

[0145] The monitoring information may include information related to the monitoring parameters, or it may include information that can determine whether the parameters need to be updated. Optionally, the monitoring information may include monitoring metrics and threshold information.

[0146] 1) Monitoring indicators, used to determine what to monitor.

[0147] As an example, monitoring indicators include at least one of the following: channel parameter-related indicators (i.e., an example of channel-type parameters), end-to-end performance indicators, equipment status indicators, etc.

[0148] Among them, channel parameter-related indicators represent parameters related to the channel. As an example, channel parameter-related indicators include at least one of the following: angle, delay, power, energy, sub-path correlation, etc.

[0149] End-to-end performance metrics refer to parameters related to transmission performance (or communication performance). For example, end-to-end performance metrics include at least one of the following: throughput performance (e.g., characterized by throughput rate), bit error rate performance (e.g., characterized by bit error rate), etc.

[0150] Among them, device status indicators represent parameters related to the location or movement status of terminal devices and / or network devices. As an example, device status indicators include at least one of the following: the movement status of the terminal device, the movement distance of the terminal device, the geographical location range of the terminal device, the movement status of the network device, the movement distance of the network device, and the geographical location range of the network device.

[0151] The monitoring metrics for different groups of parameters within the N groups may differ. Taking the first group of parameters as an example, if the first group of parameters includes angle, then the monitoring metrics for the first group of parameters may include the angle of arrival and / or the angle of departure; as another example, if the first group of parameters includes time delay, then the monitoring metrics for the first group of parameters may include time delay; as yet another example, if the first group of parameters includes power, then the monitoring metrics for the first group of parameters may include power.

[0152] 2) Threshold information is used to determine the degree of change in parameters and / or performance, and thus determine whether the parameters need to be updated.

[0153] As an example, threshold information includes at least one of the following: range of variation, threshold, and correlation threshold.

[0154] The range of change, or threshold of change, refers to the range of change of the monitored indicator. For example, if the change (or difference) of a monitoring indicator for a certain set of parameters exceeds the corresponding range of change, then that set of parameters needs to be updated; if the change (or difference) of a monitoring indicator for a certain set of parameters does not exceed the corresponding range of change, then that set of parameters does not need to be updated.

[0155] Here, "threshold" refers to the threshold value of a monitoring indicator or parameter. For example, if the measured value of a certain set of parameters is greater than or equal to the threshold value corresponding to that set of parameters, then that set of parameters needs to be updated; if the measured value of a certain set of parameters is less than the threshold value corresponding to that set of parameters, then that set of parameters does not need to be updated. To reiterate, if the measured value of a certain set of parameters is greater than or equal to the threshold value corresponding to that set of parameters, then that set of parameters does not need to be updated; if the measured value of a certain set of parameters is less than the threshold value corresponding to that set of parameters, then that set of parameters needs to be updated.

[0156] The correlation threshold (or correlation itself) can be a threshold for the correlation between some parameters or information before and after monitoring. In other words, the correlation threshold can determine the correlation between some parameters or information before and after monitoring. For example, the correlation threshold can determine the sub-path correlation or cosine similarity before and after monitoring. For example, the correlation threshold can be a real number in the range [0,1], such as correlation threshold = 0.9. For example, if the sub-path correlation of a certain set of parameters is less than or equal to the correlation threshold, then the set of parameters needs to be updated; if the sub-path correlation of a certain set of parameters is greater than the correlation threshold, then the set of parameters does not need to be updated.

[0157] The threshold information corresponding to different groups of parameters in the N groups may be different. The following explanation uses the first group of parameters as an example, with reference to Figure 3.

[0158] Referring to Figure 3, as an example, Figure 3 is a schematic diagram of monitoring information provided according to an embodiment of this application.

[0159] For example, suppose the first set of parameters includes angle, and the monitoring indicators for the first set of parameters include angle of arrival and angle of departure.

[0160] As shown in Figure 3(a), the threshold information of the first set of parameters can be a two-dimensional angle vector (Δθ, Δφ), where Δθ represents the vertical dimension angle vector (i.e., the vertical departure angle or vertical arrival angle) corresponding to the transmitting or receiving end, and Δφ represents the horizontal dimension angle vector (i.e., the horizontal departure angle or horizontal arrival angle) corresponding to the transmitting or receiving end. Taking the two-dimensional angle vector as the vertical dimension and horizontal dimension departure angle of the transmitting end as an example, before measurement, this angle vector is... The measured vertical and horizontal starting angle vectors are as follows: Compare and like and The difference is greater than or equal to Δ θ ,or, and The difference is greater than or equal to Δ φ That is, if the angle deflection of the sub-path exceeds the threshold, the angle needs to be updated; if and The difference is less than Δ θ ,as well as, and The difference is less than Δ φ In other words, if the angle deflection of the sub-path does not exceed the threshold, then the angle does not need to be updated. Or, if and The difference is greater than or equal to Δ θ ,as well as, and The difference is greater than or equal to Δ φ That is, if the angle deflection of the sub-path exceeds the threshold, the angle needs to be updated; if and The difference is less than Δ θ ,or, and The difference is less than Δ φ In other words, if the angle deflection of the sub-path does not exceed the threshold, the angle does not need to be updated.

[0161] For example, suppose the monitoring indicators for the first set of parameters are equipment status indicators (such as the geographical location range of the terminal device). In this case, the first set of parameters can include angle, phase, polarization information, etc., without limitation.

[0162] As shown in Figure 3(b), assume that the threshold information for the first set of parameters is that the tangential distance of the terminal device's location satisfies: 2*a sin d(R / 2d) < 0.85*a sin d(2*i / M). Here, R represents the distance between the network device and the terminal device, d represents the tangential distance of the terminal device's location, i represents the sub-path or cluster index, M represents the number of antenna elements, and asind() represents the arcsine function. If the tangential distance of the terminal device's location satisfies: 2*a sin d(R / 2d) < 0.85*a sin d(2*i / M), then the first set of parameters does not need to be updated temporarily; if the tangential distance of the terminal device's location does not satisfy: 2*a sin d(R / 2d) < 0.85*a sin d(2*i / M), then the first set of parameters needs to be updated. The above relationship is only an example based on the definition of location range monitoring indicators; the actual system is not limited to this specific definition.

[0163] The examples of monitoring information above are illustrative; any solution that can determine whether monitoring parameters need updating based on monitoring information is applicable to the embodiments of this application. For example, monitoring information may also include other parameters, such as the communication scenario. In other words, the device can determine whether parameters need updating based on the current communication scenario, the corresponding monitoring indicators, and / or threshold information. Furthermore, monitoring information may include the type of device, such as the type of terminal device or the type of network device. Additionally, monitoring information may include the moving speed of the terminal device and speed thresholds.

[0164] Taking a terminal device as an example, step S210 may optionally include at least the following implementation methods.

[0165] The first possible implementation is that the terminal device determines the monitoring information itself.

[0166] Based on this, alternatively, method 200 further includes S201, in which the terminal device sends indication information (referred to as indication information #11 for distinction) (i.e., an example of the first indication information) to the network device, the indication information #11 indicating monitoring information.

[0167] For example, indication information #11 indicates a monitoring metric. The network device can determine the monitoring metric based on indication information #11. Further, alternatively, the network device can determine the threshold for each monitoring metric itself, such as if the threshold for each monitoring metric is predefined or configured.

[0168] In another example, indication information #11 indicates threshold information. The network device can determine the threshold information based on indication information #11. Further optionally, the network device can determine each monitoring indicator itself, such as the threshold information indicated by indication information #11 corresponding to each monitoring indicator in sequence; or, for example, different monitoring indicators correspond to different threshold ranges, so the network device can deduce which monitoring indicators each threshold information is used for based on the threshold information indicated by indication information #11.

[0169] Another example is the indicator #11, which indicates monitoring metrics and threshold information.

[0170] The second possible implementation involves the terminal device determining the monitoring information based on instructions from the network device.

[0171] Based on this, method 200 further includes S202, whereby the network device sends indication information (referred to as indication information #12 for distinction) (i.e., an example of the first indication information) to the terminal device, which indicates monitoring information. The implementation of indication information #12 can be found in the description of indication information #11, and will not be repeated here.

[0172] The third possible implementation involves the terminal equipment and network equipment jointly determining the monitoring information.

[0173] For example, the terminal device determines the first part of the monitoring information and sends an indication message (referred to as indication message #13 for distinction) to the network device (i.e., an example of the first indication message), which indicates the first part of the monitoring information; the network device determines the second part of the monitoring information and sends an indication message (referred to as indication message #14 for distinction) to the terminal device (i.e., an example of the first indication message), which indicates the second part of the monitoring information.

[0174] For another example, the terminal device determines the first part of the monitoring information and sends an indication message (referred to as indication message #13 for distinction) to the network device (i.e., an example of the first indication message), which indicates the first part of the monitoring information; the network device then determines the second part of the monitoring information. Alternatively, the terminal device determines the first part of the monitoring information; the network device determines the second part of the monitoring information and sends an indication message #14 to the terminal device, which indicates the second part of the monitoring information.

[0175] The above example illustrates how terminal devices determine monitoring information in S210. For a more detailed explanation of how network devices determine monitoring information, please refer to the methods used by terminal devices; these will not be elaborated upon here.

[0176] In this application embodiment, the update mechanism for the N sets of parameters includes at least the following two schemes:

[0177] Option 1: Periodically trigger the parameter update mechanism;

[0178] Option 2: A non-periodic parameter update mechanism.

[0179] The two schemes are described in detail below.

[0180] Option 1: Periodically trigger the parameter update mechanism.

[0181] Taking the first set of parameters as an example, optionally, method 200 further includes: the terminal device periodically measuring the first set of parameters based on the period of the first set of parameters.

[0182] Specifically, network devices periodically send sensing signals or reference signals to terminal devices, which then periodically measure N sets of parameters. The reference signals can be either instantaneous parameters or dedicated to measuring long-term parameters, as will be explained in detail later.

[0183] Optionally, at least two of the N sets of parameters have different periods.

[0184] For example, N sets of parameters correspond to N cycles. The terminal device can determine which set of parameters to measure based on the received reference signal, based on the correspondence between the N sets of parameters and the N cycles. The correspondence between the N sets of parameters and the N cycles can be predefined, indicated, or configured; there are no restrictions on this.

[0185] The period corresponding to the parameter can represent the period of the reference signal used to measure the parameter, or it can represent the period of the measurement result of the parameter being reported.

[0186] Taking the first and second sets of parameters out of N sets of parameters as examples, the period of the reference signal used to measure the first set of parameters is T1, and the period of the reference signal used to measure the second set of parameters is T2, where T1 and T2 are different. Specifically, the network device periodically sends the reference signal used to measure the first set of parameters based on T1, and the network device periodically sends the reference signal used to measure the second set of parameters based on T2.

[0187] The above is an illustrative example, and the embodiments of this application are not limited thereto. For example, the periods corresponding to N sets of parameters may also be the same.

[0188] Optionally, at least two of the N sets of parameters have different densities or patterns of reference signals.

[0189] For example, N sets of parameters correspond to the densities of N reference signals. The terminal device can determine which set of parameters to measure based on the received reference signal, based on the correspondence between the N sets of parameters and the densities of the N reference signals. The correspondence between the N sets of parameters and the densities of the N reference signals can be predefined, indicated, or configured; there are no limitations on this.

[0190] The density of the reference signal includes the density of the reference signal in the time domain and / or the density in the frequency domain.

[0191] Taking the first and second sets of parameters in N sets of parameters as examples, the density of the reference signal used to measure the first set of parameters is different from the density of the reference signal used to measure the first set of parameters.

[0192] Referring to Figure 4, as an example, Figure 4 is a schematic diagram of reference signals for measuring different sets of parameters according to an embodiment of this application. For example, the density of the reference signal (e.g., the reference signal used to measure the first set of parameters) shown in Figure 4(a) in the time domain is different from the density of the reference signal (e.g., the reference signal used to measure the second set of parameters) shown in Figure 4(b) in the time domain. As another example, the density of the reference signal (e.g., the reference signal used to measure the first set of parameters) shown in Figure 4(a) in the frequency domain is different from the density of the reference signal (e.g., the reference signal used to measure the second set of parameters) shown in Figure 4(c) in the frequency domain. As yet another example, the density of the reference signal (e.g., the reference signal used to measure the first set of parameters) shown in Figure 4(b) in the frequency domain is different from the density of the reference signal (e.g., the reference signal used to measure the second set of parameters) shown in Figure 4(c) in the frequency domain.

[0193] The above is an illustrative example, and the embodiments of this application are not limited thereto. For example, the density of the reference signal corresponding to N sets of parameters may also be the same.

[0194] Optionally, a port can be mapped to a multipath (or a path cluster) in a weighted manner; in other words, a port can correspond to a multipath (or a path cluster).

[0195] Referring to Figure 5, as an example, Figure 5 is a schematic diagram of multipath and ports provided according to an embodiment of this application. As shown in Figure 5, there are two ports, each port corresponding to one multipath. Different time-frequency domain resources correspond to different sub-paths in the multipath.

[0196] In Scheme 1, the terminal device can report the measurement results after each measurement, that is, the terminal device reports the measurement results periodically; or, the terminal device can selectively report the results. The following section uses the first set of parameters as an example to introduce several possible implementation methods.

[0197] In one possible implementation, the network device sends a reference signal to the terminal device for measuring a first set of parameters. The terminal device then measures the first set of parameters based on the reference signal and reports the measurement results of the first set of parameters to the network device.

[0198] In this way, the terminal device can periodically measure and periodically report the measurement results.

[0199] Furthermore, after receiving the measurement results of the first set of parameters, the network device can determine whether the first set of parameters needs to be updated based on the monitoring information. If the first set of parameters needs to be updated, the precoding matrix is ​​directly re-determined based on the updated first set of parameters (i.e., the measurement results of the first set of parameters reported by the terminal device).

[0200] In a second possible implementation, the network device sends a reference signal to the terminal device for measuring the first set of parameters. The terminal device measures the first set of parameters based on the reference signal. Based on the measurement results of the first set of parameters and the monitoring information of the first set of parameters, the terminal device determines whether the first set of parameters needs to be updated. If the first set of parameters needs to be updated, the terminal device reports the measurement results of the first set of parameters to the network device.

[0201] In this way, the terminal device can periodically measure and selectively report the measurement results. That is, if the terminal device determines, based on the measurement results of the first set of parameters and the monitoring information of the first set of parameters, that the first set of parameters does not need to be updated for the time being, then it does not need to report the measurement results of the first set of parameters, thereby reducing signaling overhead.

[0202] In addition, when the network device receives the measurement results of the first set of parameters, it can directly determine that the first set of parameters needs to be updated based on the measurement results of the first set of parameters reported by the terminal device; or the network device can determine that the first set of parameters needs to be updated based on the measurement results of the first set of parameters and the monitoring information of the first set of parameters.

[0203] In a third possible implementation, the network device sends a reference signal to the terminal device for measuring the first set of parameters, and the terminal device measures the first set of parameters based on the reference signal; based on the measurement results of the first set of parameters and the monitoring information of the first set of parameters, the terminal device determines whether the first set of parameters needs to be updated; if the first set of parameters needs to be updated, the terminal device instructs the network device to update the first set of parameters.

[0204] In this way, the terminal device can periodically measure and send an indication to the network device when the parameters need to be updated. That is, if the terminal device determines that the first set of parameters does not need to be updated temporarily based on the measurement results and monitoring information of the first set of parameters, it does not need to indicate to the network device that the first set of parameters does not need to be updated, thus reducing signaling overhead.

[0205] Based on this, method 200 further includes: the terminal device sending indication information #2 (i.e., an example of the second indication information) to the network device, the indication information #2 indicating that the first set of parameters needs to be updated. The indication information #2 indicating that the first set of parameters needs to be updated can also be replaced by: the indication information #2 indicating the update of the first set of parameters, or the indication information #2 being used to trigger the transmission of a reference signal or sensing signal for measuring the first set of parameters. The indication information #2 can also be described as a parameter update request information or an update request information; its naming does not limit the scope of protection of the embodiments of this application.

[0206] In addition, upon receiving instruction information #2, the network device can directly determine that the first set of parameters needs to be updated based on instruction information #2.

[0207] In a fourth possible implementation, the network device sends a reference signal to the terminal device for measuring the first set of parameters. The terminal device measures the first set of parameters based on the reference signal. Based on the measurement results of the first set of parameters and the monitoring information of the first set of parameters, the terminal device determines whether the first set of parameters needs to be updated and instructs the network device whether the first set of parameters needs to be updated.

[0208] In this way, the terminal device can periodically measure and report whether parameters need to be updated.

[0209] In one example, if the terminal device determines that the first set of parameters needs to be updated, it sends indication information #2 (an example of the second indication information) to the network device. This indication information #2 indicates that the first set of parameters needs to be updated.

[0210] In another example, if the terminal device determines that the first set of parameters does not need to be updated, it sends indication information #3 (an example of the fourth indication information) to the network device. This indication information #3 indicates that the first set of parameters does not need to be updated.

[0211] Option 1 has been introduced above; Option 2 will be introduced below.

[0212] Option 2: A non-periodic parameter update mechanism.

[0213] Specifically, the terminal device or network device determines whether the parameters need to be updated based on the monitoring information. If an update is determined to be necessary, the update process is triggered. The following explanation combines two scenarios.

[0214] Scenario 1: The terminal device triggers the update process.

[0215] Specifically, the terminal device determines whether the parameters need to be updated based on the monitoring information of the parameters, and if it determines that an update is needed, it triggers the update process.

[0216] Taking the first set of parameters as an example, if the terminal device determines that the first set of parameters needs to be updated based on the monitoring information of the first set of parameters, then method 200 further includes: the terminal device sending indication information #4 (i.e., an example of the second indication information) to the network device, the indication information #4 indicating that the first set of parameters needs to be updated.

[0217] To distinguish them, the instruction information #4 in scenario 1 will be referred to as instruction information #41.

[0218] In this context, indication information #41 indicates that the first set of parameters needs to be updated. It can also be replaced with: indication information #41 indicates that the first set of parameters needs to be updated; or, indication information #41 is used to trigger the issuance of a reference signal or sensing signal for measuring the first set of parameters. Indication information #41 can also be described as a parameter update request message or an update request message. Its naming does not limit the scope of protection of the embodiments in this application.

[0219] The following describes several possible implementations of instruction message #41.

[0220] One possible implementation involves using at least one bit to indicate whether the first set of parameters should be updated. For example, suppose one bit indicates whether the first set of parameters should be updated. If this bit is set to "0", it means the first set of parameters should be updated; if this bit is set to "1", it means the first set of parameters should not be updated. It should be understood that the above is merely an illustrative example and is not intended to be limiting.

[0221] Alternatively, in this first possible implementation, the indication information #41 may also indicate the first set of parameters, so that the network device can know which set of parameters needs to be updated.

[0222] The second possible implementation involves instructing message #41 through a specific field. For example, if the network device receives this specific field, it indicates that the first set of parameters will be updated; if the network device does not receive this specific field, it indicates that the first set of parameters will not be updated. It should be understood that the above is merely an illustrative example and is not intended to be limiting.

[0223] Alternatively, in this second possible implementation, the indication information #41 may also indicate the first set of parameters, so that the network device can know which set of parameters needs to be updated.

[0224] The third possible implementation is that instruction #41 indicates the first set of parameters. Based on the terminal device's indication of the first set of parameters, the network device can determine that the first set of parameters needs to be updated.

[0225] The above describes several possible implementations of instruction information #41, and no limitation is imposed on them. Any method that enables the network device to know that the first set of parameters needs to be updated is applicable to the embodiments of this application.

[0226] Optionally, indication information #41 is associated with the first set of parameters. Based on this, the network device can determine which set of parameters needs to be updated. The specific form in which indication information #41 is associated with the first set of parameters is not limited. For example, indication information #41 indicates the first set of parameters, as in the three possible implementations mentioned above; another example is that indication information #41 and the first set of parameters are in the same signaling; yet another example is that N sets of parameters correspond to N indication messages #41, and one set of parameters in the N sets of parameters corresponds to one of the N indication messages #41. After receiving indication information #41, the network device can determine which set of parameters indicated by indication information #41 needs to be updated based on the correspondence between the N sets of parameters and the N indication messages #41.

[0227] Optionally, instruction information #41 also indicates resource information for a reference signal used to measure the first set of parameters. Based on this, the terminal device can also indicate to the network device a reference signal configuration that the terminal device recommends (or expects, or prefers).

[0228] As an example, the resource information of the reference signal is determined by the terminal device based on the first set of parameters; in other words, the resource information of the reference signal is determined by the terminal device based on the type of the first set of parameters.

[0229] As an example, the resource information of the reference signal includes at least one of the following: the density of the reference signal, the time-domain resources of the reference signal, and the frequency-domain resources of the reference signal. The density of the reference signal may include the density of the reference signal in the time domain and / or the density of the reference signal in the frequency domain. The time-domain resources of the reference signal may include the period of the reference signal and / or the time window it occupies. The frequency-domain resources of the reference signal may include the bandwidth occupied by the reference signal.

[0230] This application provides an example illustration using indication information #41 that also indicates resource information of a reference signal, but this is not intended to be limiting. For example, a terminal device sends indication information #5 to a network device, which indicates resource information of a reference signal. Indication information #41 and indication information #5 can be carried in one signaling message or in different signaling messages, and this is not limited.

[0231] Scenario 2: The network device triggers an update process.

[0232] Specifically, network devices determine whether parameters need to be updated based on monitoring information. If an update is required, an update process is triggered.

[0233] Taking the first set of parameters as an example, if the terminal device determines that the first set of parameters needs to be updated based on the monitoring information of the first set of parameters, then method 200 further includes: the terminal device sending indication information #4 (i.e., an example of the second indication information) to the network device, the indication information #4 indicating that the first set of parameters needs to be updated.

[0234] To distinguish them, the instruction information #4 in scenario 2 will be referred to as instruction information #42.

[0235] In this context, instruction #42 indicates that the first set of parameters needs to be updated. It can also be replaced with: instruction #42 indicates updating the first set of parameters, or instruction #42 indicates measuring the first set of parameters. Instruction #42 can also be described as a parameter update request message or an update request message. Its naming does not limit the scope of protection of this application's embodiments.

[0236] Optionally, the indication information #42 includes at least one of the following: resource information of the reference signal, a first set of parameters, and indication information for updating the first set of parameters. The reference signal is used to measure the first set of parameters.

[0237] The following describes several possible implementations of instruction message #42.

[0238] One possible implementation involves using at least one bit to indicate whether the first set of parameters should be updated. For example, suppose one bit indicates whether the first set of parameters should be updated. If this bit is set to "0", it means the first set of parameters should be updated; if this bit is set to "1", it means the first set of parameters should not be updated. It should be understood that the above is merely an illustrative example and is not intended to be limiting.

[0239] Alternatively, in this first possible implementation, the instruction information #42 may also indicate the first set of parameters, so that the terminal device can know which set of parameters needs to be updated.

[0240] Alternatively, in this first possible implementation, the indication information #42 may also indicate resource information of the reference signal, wherein the reference signal can be used by the terminal device to measure the first set of parameters. In this way, the terminal device receives the reference signal based on the resource information of the reference signal, then measures the first set of parameters and feeds back the measurement results of the first set of parameters.

[0241] The second possible implementation involves instructing message #42 through a specific field. For example, if the terminal device receives this specific field, it indicates that the first set of parameters will be updated; if the terminal device does not receive this specific field, it indicates that the first set of parameters will not be updated. It should be understood that the above is merely an illustrative example and is not intended to be limiting.

[0242] Alternatively, in this second possible implementation, the instruction information #42 may also indicate the first set of parameters, so that the terminal device can know which set of parameters needs to be updated.

[0243] Alternatively, in this second possible implementation, the indication information #42 may also indicate resource information of the reference signal, wherein the reference signal can be used by the terminal device to measure the first set of parameters. In this way, the terminal device receives the reference signal based on the resource information of the reference signal, then measures the first set of parameters and feeds back the measurement results of the first set of parameters.

[0244] The third possible implementation is that instruction #42 indicates the first set of parameters. Based on the terminal device's indication of the first set of parameters, the network device can determine that the first set of parameters needs to be updated.

[0245] Alternatively, in this third possible implementation, the indication information #42 may also indicate resource information of the reference signal, wherein the reference signal can be used by the terminal device to measure the first set of parameters. In this way, the terminal device receives the reference signal based on the resource information of the reference signal, then measures the first set of parameters and feeds back the measurement results of the first set of parameters.

[0246] The fourth possible implementation involves indicating resource information for a reference signal in instruction information #42. This reference signal can be used by the terminal device to measure the first set of parameters. Based on the resource information of the reference signal indicated by the network device for measuring the first set of parameters, the terminal device can determine that the first set of parameters needs updating. Then, the terminal device receives the reference signal based on this resource information, measures the first set of parameters, and feeds back the measurement results.

[0247] For example, given N sets of parameters corresponding to N reference signals' resource information, after receiving indication information #42, the terminal device can determine which set of parameters needs updating, or which set of parameters needs to be measured based on the resource information of the reference signals indicated by indication information #42 and the correspondence between the N sets of parameters and the resource information of the N reference signals. For instance, if the patterns of the reference signals corresponding to the N sets of parameters are different, the terminal device can determine which set of parameters the reference signal is used to measure based on the pattern of the reference signal indicated by indication information #42.

[0248] In another example, instruction message #42 can also indicate the first set of parameters.

[0249] The above describes several possible implementations of instruction information #42, and no limitation is imposed on them. Any method that enables the terminal device to know that the first set of parameters needs to be updated is applicable to the embodiments of this application.

[0250] Optionally, indication information #42 is associated with the first set of parameters; in other words, indication information #42 instructs the terminal device to measure and provide feedback on the first set of parameters. The specific form in which indication information #42 is associated with the first set of parameters is not limited.

[0251] For example, instruction #42 indicates the first set of parameters, as described in the first three possible implementations above. Another example is that instruction #42 and the first set of parameters are in the same signaling. Yet another example is that N sets of parameters correspond to N instruction messages #42, and one set of parameters in the N sets corresponds to one instruction message #42 among the N instruction messages #42. After receiving instruction message #42, the terminal device can determine which set of parameters needs to be updated based on the correspondence between the N sets of parameters and the N instruction messages #42.

[0252] Optionally, indication information #42 also indicates resource information for a reference signal used to measure the first set of parameters.

[0253] As an example, the resource information of the reference signal is determined by the network device based on the first set of parameters; in other words, the resource information of the reference signal is determined by the network device based on the type of the first set of parameters. For details regarding the resource information of the reference signal, please refer to the preceding description, which will not be repeated here.

[0254] This application provides an example illustration using indication information #42 that also indicates resource information of a reference signal, but this is not intended to be limiting. For example, a network device sends indication information #6 (an example of third indication information) to a terminal device, which indicates resource information of the reference signal. Indication information #42 and indication information #6 can be carried in one signaling message or in different signaling messages, and are not limited thereto. As another example, indication information #42 directly indicates resource information of the reference signal, and the terminal device can determine which set of parameters needs to be updated, or which set of parameters needs to be measured based on this resource information of the reference signal.

[0255] The update mechanism for N sets of parameters has been introduced above. The following section introduces the relevant solutions for measurement resources used to measure N sets of parameters.

[0256] Resources for reference signals used to measure N sets of parameters should include at least the following two implementation methods:

[0257] The first possible implementation is to use a reference signal (e.g., referred to as reference signal #A) for measuring instantaneous parameters;

[0258] The second possible implementation is a reference signal (such as reference signal #B) specifically for measuring long-term parameters.

[0259] The two implementation methods are described below.

[0260] The first possible implementation involves a reference signal #A for measuring instantaneous parameters. Specifically, the terminal device measures long-term parameters based on the reference signal #A used to measure instantaneous parameters.

[0261] The reference signal #A can be periodic or non-periodic, which is not limited.

[0262] Instantaneous parameters are defined in contrast to long-term parameters. Instantaneous parameters represent channel parameters measured and reported by the terminal device over a short period, such as the channel parameters measured and reported by the terminal device each time the network device determines the precoding matrix, for example, initial phase information. Long-term parameters, on the other hand, represent channel parameters measured and reported by the terminal device over a longer period. Parameters in the N sets of parameters can be, for example, long-term parameters.

[0263] Based on this, the network device can instruct the terminal device to measure long-term parameters based on the reference signal #A. In other words, the terminal device measures not only instantaneous parameters but also long-term parameters based on the reference signal #A.

[0264] As an example, a network device explicitly indicates that a long-term parameter is measured based on a reference signal #A.

[0265] For example, a new field can be added to the resource configuration of reference signal #A. This field can contain long-term parameter information. Based on this, the terminal device can determine that, in addition to measuring the instantaneous parameters based on reference signal #A, it also needs to measure the long-term parameters indicated by this field. For instance, the resource configuration of reference signal #A may include not only the resource information of reference signal #A but also information about the first set of parameters (such as the identifier of the first set of parameters). Based on this, the terminal device can determine that it needs to measure both the instantaneous parameters and the first set of parameters based on reference signal #A.

[0266] In another example, network devices implicitly indicate long-term parameters based on reference signal #A.

[0267] For example, a network device instructs a terminal device on the resource configuration of a reference signal #A. This resource configuration is associated with long-term parameters. Based on the resource configuration of the reference signal #A, the terminal device can determine that it also needs to measure the corresponding long-term parameters. For instance, different patterns and / or densities of the reference signal #A correspond to different long-term parameters. Thus, the terminal device can determine the corresponding long-term parameters based on the pattern and / or density of the reference signal #A. For example, if the pattern of the reference signal #A is associated with a first set of parameters, after receiving the resource configuration of the reference signal #A, the terminal device can determine, based on the pattern of the reference signal #A, that it needs to measure the instantaneous parameters and the first set of parameters.

[0268] The second possible implementation uses a dedicated reference signal #B for measuring long-term parameters. Specifically, the terminal device measures the long-term parameters based on the dedicated reference signal #B.

[0269] Optionally, the resource information of reference signal #B is related to the parameter type; in other words, the resource information of reference signal #B can be determined based on the type of the long-term parameter. For details regarding the resource information of the reference signal, please refer to the preceding description, which will not be repeated here.

[0270] Optionally, the network device indicates to the terminal device which set of long-term parameters the reference signal #B is used to measure.

[0271] As an example, a network device explicitly indicates which set of long-term parameters the reference signal #B is used to measure.

[0272] For example, the resource configuration of the reference signal #B includes information about the first set of parameters (such as the identifier of the first set of parameters). Based on this, the terminal device can determine that the first set of parameters should be measured based on the reference signal #B.

[0273] In another example, network devices implicitly indicate which set of long-term parameters the reference signal #B is used to measure.

[0274] For example, a network device indicates the resource configuration of reference signal #B to a terminal device. The resource configuration of reference signal #B is associated with long-term parameters. Thus, the terminal device can determine the corresponding long-term parameters based on the resource configuration of reference signal #B. For instance, different patterns of reference signal #B correspond to different long-term parameters. Therefore, the terminal device can determine the corresponding long-term parameters based on the pattern of reference signal #B. For example, if the pattern of reference signal #B is associated with a first set of parameters, after receiving the resource configuration of reference signal #B, the terminal device can determine, based on the pattern of reference signal #B, that it needs to measure the first set of parameters based on reference signal #B.

[0275] The above describes two possible implementation methods, which are not limited to any one of them. For example, the terminal device can also measure long-term parameters based on the sensed signals.

[0276] If the first set of parameters needs to be updated, the terminal device can send some information back to the network device, which will then help the network device re-determine the precoding matrix. Several possible implementation methods are described below.

[0277] In one possible implementation, the terminal device feeds back the measurement results of the first set of parameters (i.e., an example of the first value) to the network device.

[0278] For example, the terminal device performs measurements based on reference signal #A or reference signal #B to obtain the measurement results of the first set of parameters; the terminal device then sends the measurement results of the first set of parameters to the network device.

[0279] In a second possible implementation, the terminal device feeds back a first offset to the network device, which indicates the offset between the first value and the second value.

[0280] The first value is the value of the first set of parameters obtained based on the reference signal measurement, and the second value is the value of the first set of parameters before the reference signal measurement.

[0281] For example, the terminal device performs a measurement based on reference signal #A or reference signal #B to obtain the measurement result of the first set of parameters. Based on the measurement result of the first set of parameters and the values ​​of the first set of parameters before the measurement, the terminal device determines a first offset. The terminal device sends this first offset to the network device. Based on this first offset and the values ​​of the first set of parameters before the measurement, the network device can determine the measurement result of the first set of parameters. For example, if the first set of parameters is phase, and the phase of a certain port before the measurement is Φ1 (e.g., the phase of the port obtained by the terminal device in the previous measurement is Φ1), and the phase of that port currently measured by the terminal device based on reference signal #A or reference signal #B is Φ2, then the terminal device can report the deviation of Φ1 relative to Φ2 to the network device.

[0282] A third possible implementation involves the terminal device feeding back a second offset to the network device, where the second offset is the CSI offset. As an example, this approach is applicable to scenarios where monitoring metrics include device status indicators.

[0283] For example, the terminal device determines the offset of the CSI based on location information, and then indicates the offset of the CSI to the network device; the network device can then redetermine the precoding matrix based on the offset of the CSI. The offset of the CSI includes, but is not limited to, at least one of the following: the offset of the PMI, the offset of the CQI, the offset of the RI, and the offset of the MCS.

[0284] Location information refers to information related to the location of a device (such as a terminal device or a network device). As an example, location information includes at least one of the following: the distance the terminal device has traveled, and the geographical location range of the terminal device.

[0285] As an example, location information is correlated with CSI offsets. This correlation can be determined by the terminal device itself, predefined, pre-configured, or indicated; there are no limitations on this. The correlation between location information and CSI offsets can be stored or transmitted in various forms such as tables, text, and functions. The following explanation uses the terminal device's movement distance as an example, combined with a table.

[0286] Table 1

[0287] The movement distance, or relative distance change, represents the distance traveled, such as the distance the terminal device moves. By determining the numerical range of the terminal device's movement distance, the corresponding offset can be determined.

[0288] Referring to Figure 6, as an example, Figure 6 is a schematic diagram of the movement state of the terminal device provided in an embodiment of this application. As shown in Figure 6, the position of the terminal device may move. For example, the movement distance of the terminal device may be less than or equal to R1; or, the movement distance of the terminal device may be greater than R1 and less than or equal to R2; or, the movement distance of the terminal device may be greater than R2 and less than or equal to R3.

[0289] If the moving distance of the terminal device is less than or equal to R1, then according to Table 1, the terminal device can feed back at least one of the following to the network device: MCS offset Δ1, CQI offset Δ11, RI offset Δ12, and PMI offset Δ13; if the moving distance of the terminal device is greater than R1 and less than or equal to R2, then according to Table 1, the terminal device can feed back at least one of the following to the network device: MCS offset Δ2, CQI offset Δ21, RI offset Δ22, and PMI offset Δ23; and so on.

[0290] It is understood that Table 1 is for illustrative purposes only and is not intended to be limiting. For example, Table 1 could include more distances to move (i.e., more numerical ranges). Furthermore, the distance to move could be represented by specific numerical values, such as R1, R2, R3, etc. Still further, the numerical range corresponding to the distance to move could be represented in other ways, such as a first numerical range, a second numerical range, a third numerical range, etc.

[0291] For ease of understanding, the specific process applicable to the embodiments of this application is described below. It should be understood that the process described below is merely illustrative, and the embodiments of this application are not limited thereto. Content not described in detail below can be referred to the description in method 200, and will not be repeated hereafter.

[0292] Referring to Figure 7, as an example, Figure 7 is a schematic diagram of a communication method 700 provided in an embodiment of this application. The method shown in Figure 7 is applicable to scenarios where parameter updates are triggered non-periodically by a terminal device. The method 700 shown in Figure 7 may include the following steps.

[0293] S701, the terminal equipment confirms the monitoring information.

[0294] This monitoring information includes monitoring information for N sets of parameters.

[0295] One possible implementation is that the network device indicates monitoring information to the terminal device. Another possible implementation is that the terminal device determines the monitoring information itself. Yet another possible implementation is that the terminal device determines a portion of the monitoring information (such as monitoring indicators), and the network device indicates another portion of the monitoring information (such as threshold information) to the terminal device.

[0296] S702, the terminal device determines whether N sets of parameters need to be updated based on the monitoring information.

[0297] Specifically, the terminal device determines which of the N sets of parameters needs to be updated based on the monitoring information of the first set of parameters. For example, let's assume the terminal device determines that the first set of parameters needs to be updated based on the monitoring information of the first set.

[0298] S703, the terminal device sends instruction information #41 (i.e., an example of the second instruction information) to the network device, which indicates that the first set of parameters needs to be updated.

[0299] Optionally, the instruction information #41 is associated with the first set of parameters.

[0300] Optionally, the terminal device may also indicate resource information of a reference signal to the network device, the reference signal being used to measure the first set of parameters; in other words, the terminal device may suggest resource information of a reference signal to the network device for measuring the first set of parameters.

[0301] As an example, the resource information of the reference signal includes at least one of the following: the density of the reference signal, the time-domain resources of the reference signal, and the frequency-domain resources of the reference signal.

[0302] For information on indication message #41 and resource information on reference signals, please refer to the relevant description in method 200 above.

[0303] S704, resource information for network devices to send reference signals to terminal devices.

[0304] Specifically, based on indication information #41, the network device learns that the first set of parameters needs to be updated. Therefore, the network device determines the resource information of the reference signal used to measure the first set of parameters and instructs it to the terminal device. The terminal device can receive the reference signal based on the resource information of the reference signal and measure the first set of parameters based on the reference signal.

[0305] As an example, the resource information of the reference signal in step S704 includes the following possible implementation methods.

[0306] In one possible implementation, the resource information of the reference signal in step S704 can be determined based on the resource information of the reference signal indicated by the terminal device in step S703. For example, the resource information of the reference signal in step S704 is the resource information of the reference signal indicated by the terminal device in step S703.

[0307] In another possible implementation, the resource information of the reference signal in step S704 can be determined based on the first set of parameters. Specifically, the network device can determine the resource information of the reference signal used to measure the first set of parameters based on the type of the first set of parameters.

[0308] S705, the network device sends a reference signal to the terminal device.

[0309] Specifically, the network device sends a reference signal based on the resource information of the reference signal in step S704, and correspondingly, the terminal device receives the reference signal based on the resource information of the reference signal in step S704.

[0310] S706, the terminal device performs measurements based on the reference signal to obtain the measurement results of the first set of parameters.

[0311] The reference signal in step S706 includes the following possible implementation methods.

[0312] In one possible implementation, the reference signal in step S706 is a reference signal used to measure instantaneous parameters (i.e., reference signal #A). In this case, in S706, the terminal device can measure the instantaneous parameters and the first set of parameters based on the reference signal.

[0313] Furthermore, if the reference signal in step S706 is a reference signal used to measure instantaneous parameters, then in step S704, when the network device indicates the resource information of the reference signal to the terminal device, it can explicitly or implicitly indicate that the reference signal is also used to measure the first set of parameters. Refer to the relevant description in method 200 for further details.

[0314] Another possible implementation is that the reference signal in step S706 is a reference signal specifically used for measuring long-term parameters (i.e., reference signal #B). In this case, in S706, the terminal device can measure the first set of parameters based on this reference signal. The ways in which the terminal device determines that the reference signal is used to measure the first set of parameters can include the following:

[0315] For example, the terminal device defaults to using the reference signal to measure the first set of parameters. If the terminal device needs to update based on the first set of parameters, it determines that the reference signal is used to measure the first set of parameters.

[0316] For example, the network device indicates the reference signal to the terminal device for measuring the first set of parameters. In step S704, when the network device indicates the resource information of the reference signal to the terminal device, it also indicates the first set of parameters.

[0317] For example, the resource information of the reference signal is related to the parameter type. Based on the resource information of the reference signal in step S704, the terminal device can determine that the parameter associated with the resource information is the first group of parameters.

[0318] S707, the terminal device indicates to the network device the measurement result of the first set of parameters (i.e., an example of the first value) or the first offset.

[0319] For example, after the terminal device obtains the measurement results of the first set of parameters based on the reference signal, it directly feeds back the measurement results of the first set of parameters to the network device.

[0320] For example, after the terminal device obtains the measurement results of the first set of parameters based on the reference signal, it determines the first offset based on the measurement results of the first set of parameters and the values ​​of the first set of parameters before the measurement, and feeds back the first offset to the network device.

[0321] Optionally, method 700 also includes S708-S709.

[0322] S708, the network device determines the precoding matrix based on N sets of parameters, and performs precoding processing on the signal based on the precoding matrix.

[0323] Among these N sets of parameters, the first set of parameters is the updated first set of parameters.

[0324] As an example, the precoding matrix satisfies the following formula. V p =[V p,1,1 ,...,V p,n,m ,...V p,N,MFormula 1.2 V p =U p Σ p F p * Formula 1.3

[0325] The precoding vectors for each path satisfy Formula 1.1, and the precoding matrix for the multipath satisfies Formula 1.2. Where V p,n,m P represents the precoding vector of sub-path m in path cluster n corresponding to port p; n,m R represents the power of the neutron diameter m in the caliber cluster n; n,m V represents the receiver steering vector of sub-path m in path cluster n; n,m Indicates the transmitting end steering vector; x n,m Indicates the polarization leakage factor; This represents the phase information of sub-path m in path cluster n when horizontally receiving and horizontally transmitting precoded signals (i.e., signals after precoding). This represents the phase information of sub-path m in path cluster n when receiving and transmitting precoded signals vertically; This represents the phase information of sub-path m in path cluster n when receiving precoded signals horizontally and transmitting them vertically. This represents the phase information of sub-path m in path cluster n when receiving and transmitting precoded signals vertically and horizontally; the exp function represents an exponential function with a base of constant e; j is the imaginary unit. Here, sub-path m in path cluster n refers to the sub-path m within path cluster n. Steering vectors are used to calculate the array response at different arrival / transmission angles. Each steering vector represents a specific arrival or departure angle, and each element represents an array element.

[0326] Equation 1.2 represents the precoding vector corresponding to port p. Equation 1.3 represents the precoding vector for V. p Perform singular value decomposition (SVD) decomposition, U p and F p For unitary matrices, Σ p This represents a diagonal matrix. Here, 1.3 only applies to V. p This is one example of performing orthogonalization. Other methods, such as Schmidt orthogonalization, can also be used to achieve orthogonalization instead of this step, and this application does not limit this approach.

[0327] In the above formula, the superscript * indicates conjugate; The superscript -1 indicates the Kronecker product operation; the superscript -1 indicates the inverse operation.

[0328] S709: Network devices send pre-coded signals to terminal devices.

[0329] Based on the above embodiments, by designing monitoring information for N sets of parameters and having the terminal device determine whether to update the parameters based on the actual measurement results, a more economical long-term parameter acquisition triggering and update scheme can be achieved, enabling more efficient implementation of perception precoding and improving system performance.

[0330] Referring to Figure 8, as an example, Figure 8 is a schematic diagram of a communication method 800 provided in an embodiment of this application. The method shown in Figure 8 is applicable to scenarios where parameter updates are triggered non-periodically by network devices. The method 800 shown in Figure 8 may include the following steps.

[0331] S801, network device determines monitoring information.

[0332] This monitoring information includes monitoring information for N sets of parameters.

[0333] One possible implementation is that the terminal device indicates monitoring information to the network device. Another possible implementation is that the terminal device determines the monitoring information itself. Yet another possible implementation is that the network device determines a portion of the monitoring information (such as threshold information), and the terminal device indicates the remaining portion (such as monitoring indicators) to the network device.

[0334] S802, the network device determines whether N sets of parameters need to be updated based on monitoring information.

[0335] Specifically, the network device determines which of the N sets of parameters needs to be updated based on monitoring information from the first set of parameters. For example, let's assume the network device determines that the first set of parameters needs updating based on the monitoring information from the first set.

[0336] S803, the network device sends instruction message #42 (an example of the second instruction message) to the terminal device, which indicates that the first set of parameters needs to be updated.

[0337] One possible implementation is to have instruction message #42 directly indicate that the first set of parameters needs to be updated.

[0338] Another possible implementation is that instruction message #42 indicates the first set of parameters. Based on this, the terminal device, based on the network device's indication of the first set of parameters, can determine whether the first set of parameters needs to be updated, or whether the first set of parameters needs to be measured and fed back.

[0339] Another possible implementation is that instruction information #42 indicates resource information for the reference signal used to measure the first set of parameters. Based on this, the terminal device, based on the resource information indicated by the network device, can determine whether the first set of parameters needs to be updated, or whether the first set of parameters needs to be measured and fed back. As an example, different sets of parameters in the N sets of parameters can correspond to different resource information (such as corresponding to different patterns and / or densities).

[0340] Optionally, indication information #42 is associated with the first group of parameters. For example, indication information #42 indicates the first group of parameters; or, for another example, different indication information #42 corresponds to different groups of parameters in N groups of parameters.

[0341] For information on instruction #42, please refer to the relevant description in method 200 above.

[0342] S804, resource information for reference signals sent by network devices to terminal devices.

[0343] The reference signal is used to measure the first set of parameters.

[0344] In one possible implementation, the network device can implicitly indicate that the first set of parameters needs to be updated by indicating resource information of the reference signal to the terminal device. In this case, method 800 may include step S804 but does not include S803.

[0345] Optionally, the resource information of the reference signal in step S804 can be determined based on the first set of parameters. Specifically, the network device can determine the resource information of the reference signal used to measure the first set of parameters based on the type of the first set of parameters.

[0346] S805, the network device sends a reference signal to the terminal device.

[0347] Specifically, the network device sends a reference signal based on the resource information of the reference signal in step S804, and correspondingly, the terminal device receives the reference signal based on the resource information of the reference signal in step S804.

[0348] S806, the terminal device performs measurements based on the reference signal to obtain the measurement results of the first set of parameters.

[0349] The reference signal in step S806 includes the following possible implementation methods.

[0350] In one possible implementation, the reference signal in step S806 is a reference signal used to measure instantaneous parameters (i.e., reference signal #A). In this case, in S806, the terminal device can measure the instantaneous parameters and the first set of parameters based on the reference signal.

[0351] Furthermore, if the reference signal in step S806 is a reference signal used to measure instantaneous parameters, then in step S804, when the network device indicates the resource information of the reference signal to the terminal device, it can explicitly or implicitly indicate that the reference signal is also used to measure the first set of parameters. Refer to the relevant description in method 200 for further details.

[0352] Another possible implementation is that the reference signal in step S806 is a reference signal specifically used for measuring long-term parameters (i.e., reference signal #B). In this case, in S806, the terminal device can measure the first set of parameters based on this reference signal. The ways in which the terminal device determines that the reference signal is used to measure the first set of parameters can include the following:

[0353] For example, when the network device indicates the reference signal to the terminal device for measuring the first set of parameters, as in step S804, when the network device indicates the resource information of the reference signal to the terminal device, it also indicates the first set of parameters.

[0354] For example, the resource information of the reference signal is related to the parameter type. Based on the resource information of the reference signal in step S804, the terminal device can determine that the parameter associated with the resource information is the first group of parameters.

[0355] S807, the terminal device indicates to the network device the measurement result of the first set of parameters (i.e., an example of the first value) or the first offset.

[0356] Optionally, method 800 also includes S808-S809.

[0357] S808: The network device determines the precoding matrix based on N sets of parameters, and performs precoding processing on the signal based on the precoding matrix.

[0358] S809: Network devices send pre-coded signals to terminal devices.

[0359] Steps S807-S809 can be referred to steps S707-S709 in method 700, and will not be repeated here.

[0360] Based on the above embodiments, by designing monitoring information for N sets of parameters and having the network device determine whether to update the parameters based on the actual measurement results, a more economical long-term parameter acquisition triggering and update scheme can be achieved, enabling more efficient implementation of perception precoding and improving system performance.

[0361] Referring to Figure 9, as an example, Figure 9 is a schematic diagram of a communication method 900 provided in an embodiment of this application. The method shown in Figure 9 can be applied to scenarios where parameter updates are triggered periodically. The method 900 shown in Figure 9 may include the following steps.

[0362] S901, the terminal equipment confirms the monitoring information.

[0363] This monitoring information includes monitoring information for N sets of parameters.

[0364] One possible implementation is that the network device indicates monitoring information to the terminal device. Another possible implementation is that the terminal device determines the monitoring information itself. Yet another possible implementation is that the terminal device determines a portion of the monitoring information (such as monitoring indicators), and the network device indicates another portion of the monitoring information (such as threshold information) to the terminal device.

[0365] S902, network devices periodically send reference signals to terminal devices.

[0366] Optionally, at least two of the N sets of parameters have different periods.

[0367] Optionally, at least two of the N sets of parameters correspond to different densities (or patterns) of the reference signals.

[0368] Regarding the reference signal in step S902, there are two implementation methods as follows.

[0369] One possible implementation is that the reference signal is a reference signal used to measure instantaneous parameters (i.e., reference signal #A). Based on this, the terminal device measures long-term parameters based on the reference signal used to measure instantaneous parameters. In this case, the network device can explicitly or implicitly indicate that long-term parameters are measured based on this reference signal.

[0370] Another possible implementation is to dedicate a reference signal (i.e., reference signal #B) to measuring long-term parameters. Based on this, the terminal device measures the long-term parameters using this reference signal. In this case, the network device can explicitly or implicitly indicate which set of long-term parameters to measure based on the reference signal.

[0371] For details, please refer to the relevant description in Method 200.

[0372] This application provides an example illustration of a network device periodically transmitting a reference signal, but this is not intended to limit the scope. For example, the network device may also periodically transmit sensing signals. Taking the first set of parameters as an example, method 900 further includes S903.

[0373] S903, the terminal device indicates to the network device the measurement result of the first set of parameters (i.e., an example of the first value) or the first offset.

[0374] In one possible scenario, the terminal device periodically measures the first set of parameters and periodically indicates the measurement results or first offset of the first set of parameters to the network device.

[0375] In another possible scenario, the terminal device periodically measures the first set of parameters, and if the terminal device determines that the first set of parameters needs to be updated, the terminal device indicates the measurement result or the first offset of the first set of parameters to the network device; if the terminal device determines that the first set of parameters does not need to be updated, the terminal device does not indicate the measurement result or the first offset of the first set of parameters to the network device.

[0376] The above is an illustrative example, and the embodiments of this application are not limited thereto. For example, the terminal device may also directly indicate to the network device whether the first set of parameters needs to be updated.

[0377] Optionally, method 900 also includes S904-S905.

[0378] S904, the network device determines the precoding matrix based on N sets of parameters, and performs precoding processing on the signal based on the precoding matrix.

[0379] S905: Network devices send pre-coded signals to terminal devices.

[0380] Steps S904-S905 can be referred to steps S708-S709 in method 700, and will not be repeated here.

[0381] Based on the above embodiments, by designing monitoring information for N sets of parameters, periodically measuring them, and determining whether to update the parameters based on the measurement results, a more economical long-term parameter acquisition triggering and update scheme can be achieved, enabling more efficient implementation of perception precoding and improving system performance.

[0382] The methods provided by the embodiments of this application have been described in detail above with reference to Figures 2 to 9. The apparatus provided by the embodiments of this application will be described in detail below with reference to Figures 10 to 12. It should be understood that the descriptions of the apparatus embodiments correspond to the descriptions of the method embodiments; therefore, any content not described in detail can be referred to the method embodiments above, and for the sake of brevity, will not be repeated here.

[0383] Referring to Figure 10, which is a schematic diagram of a communication device 1000 provided in an embodiment of this application, the communication device 1000 includes a transceiver unit 1010 and a processing unit 1020. The transceiver unit 1010 can be used to implement corresponding communication functions. The transceiver unit 1010 can also be referred to as a communication interface or a communication unit. The processing unit 1020 can be used to perform processing, such as determining monitoring information and judging whether parameters need to be updated.

[0384] Optionally, the device 1000 may further include a storage unit, which can be used to store instructions and / or data, and the processing unit 1020 can read the instructions and / or data in the storage unit to enable the device to implement the aforementioned method embodiments.

[0385] In a first possible design, the device 1000 can be the terminal device in the foregoing embodiments, which can implement the steps or processes corresponding to those executed by the terminal device in the above method embodiments. Specifically, the transceiver unit 1010 can be used to perform transceiver-related operations (such as sending and / or receiving data or messages) of the terminal device in the above method embodiments, and the processing unit 1020 can be used to perform processing-related operations of the terminal device in the above method embodiments, or operations other than transceiver (such as operations other than sending and / or receiving data or messages).

[0386] In a second possible design, the device 1000 can be a network device as described in the foregoing embodiments. This device 1000 can implement the steps or processes performed by the network device corresponding to those described in the above method embodiments. Specifically, the transceiver unit 1010 can be used to perform transceiver-related operations (such as sending and / or receiving data or messages) of the network device described in the above method embodiments, and the processing unit 1020 can be used to perform processing-related operations of the network device described in the above method embodiments, or operations other than transceiver operations (such as operations other than sending and / or receiving data or messages).

[0387] One possible implementation is as follows: a transceiver unit 1010 is used to receive first indication information, which indicates monitoring information. The monitoring information includes monitoring information for each of the N sets of parameters. The N sets of parameters are used to determine the precoding matrix. The monitoring information for each of the N sets of parameters is used to determine whether the set of parameters needs to be updated. N is an integer greater than or equal to 1. A processing unit 1020 is used to determine the monitoring information.

[0388] Another possible implementation is a processing unit 1020, which is used to determine monitoring information, including monitoring information of each of the N sets of parameters. The N sets of parameters are used to determine the precoding matrix, and the monitoring information of each of the N sets of parameters is used to determine whether the set of parameters needs to be updated. N is an integer greater than or equal to 1. A transceiver unit 1010 is used to send first indication information, which indicates the monitoring information.

[0389] Optionally, the N sets of parameters include the first set of parameters. The transceiver unit 1010 is also used to send or receive second indication information, which indicates that the first set of parameters needs to be updated.

[0390] Optionally, the second indication information also indicates resource information of the reference signal used to measure the first set of parameters.

[0391] Optionally, the transceiver unit 1010 is further configured to receive a reference signal; the processing unit 1020 is further configured to measure a first set of parameters based on the reference signal; the transceiver unit 1010 is further configured to transmit a first value or a first offset, wherein the first value is the value of the first set of parameters obtained based on the reference signal, the first offset is the offset between the first value and the second value, and the second value is the value of the first set of parameters before the reference signal measurement.

[0392] Optionally, the transceiver unit 1010 is also configured to receive third indication information, which indicates resource information of the reference signal.

[0393] Optionally, the second indication information indicates that the first set of parameters needs to be updated, including: the second indication information indicates at least one of the following: resource information of the reference signal, the first set of parameters, and indication information that the first set of parameters needs to be updated; wherein the reference signal is used to measure the first set of parameters.

[0394] Optionally, the resource information of the reference signal includes the first set of parameters; or, the resource information of the reference signal is associated with the first set of parameters.

[0395] Optionally, the transceiver unit 1010 is also used to transmit a reference signal; receive a first value or a first offset, wherein the first value is the value of a first set of parameters obtained based on the reference signal, the first offset is the offset between the first value and a second value, and the second value is the value of the first set of parameters before the reference signal is measured.

[0396] Optionally, the transceiver unit 1010 is also used to transmit third indication information, which indicates the resource information of the reference signal.

[0397] Optionally, the resources of the reference signal are determined based on the first set of parameters.

[0398] Optionally, the resource information of the reference signal includes at least one of the following: the density of the reference signal, the frequency domain information of the reference signal, and the time domain information of the reference signal.

[0399] Optionally, the N sets of parameters include the first set of parameters. The transceiver unit 1010 is also used to send or receive fourth indication information, which indicates that the first set of parameters does not need to be updated.

[0400] Optionally, the N sets of parameters include the first set of parameters, and the processing unit 1020 is also used to periodically measure the first set of parameters based on the period of the first set of parameters.

[0401] Optionally, the N sets of parameters may also include a second set of parameters, wherein the period of the reference signal used to measure the first set of parameters is different from the period of the reference signal used to measure the second set of parameters; and / or, the density of the reference signal used to measure the first set of parameters is different from the density of the reference signal used to measure the second set of parameters.

[0402] Optionally, the transceiver unit 1010 is also used to send or receive fifth indication information, the fifth indication information indicating a second offset, the second offset being an offset of channel state information, and the second offset being determined based on at least one set of parameters from N sets of parameters.

[0403] Optionally, the channel state information includes at least one of the following: precoding matrix indicator, channel quality indicator, rank indicator, and MCS.

[0404] Optionally, the N sets of parameters include the first set of parameters, and the monitoring information of the first set of parameters includes the monitoring indicators and / or threshold information of the first set of parameters, wherein the monitoring indicators include at least one of the following: channel parameters, end-to-end performance indicators, and status indicators.

[0405] Optionally, the N sets of parameters include at least one of the following parameters: angle, time delay, power, and Doppler.

[0406] Another possible implementation involves a processing unit 1020, configured to determine a second offset based on location information. This second offset indicates the offset of the channel state information, and the offset of the channel state information is correlated with the location information. A transceiver unit 1010 is configured to transmit the second offset. Optionally, the location information includes at least one of the following: the moving distance of the terminal device, and the location range of the terminal device.

[0407] It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0408] It should also be understood that the device 1000 here is embodied in the form of a functional unit. The term "unit" here can refer to an application-specific integrated circuit (ASIC), electronic circuitry, a processor (e.g., a shared processor, a proprietary processor, or a group processor, etc.) and memory for executing one or more software or firmware programs, integrated logic circuitry, and / or other suitable components supporting the described functions. In an alternative example, those skilled in the art will understand that the device 1000 can be specifically the communication device in the above embodiments, and can be used to execute the various processes and / or steps corresponding to the communication device in the above method embodiments; to avoid repetition, these will not be described again here.

[0409] The apparatus 1000 of each of the above-described schemes has the function of implementing the corresponding steps performed by the communication device (such as a terminal device or a network device) in the above-described methods. The function can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (e.g., 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 processing units, can be replaced by processors, each performing the transceiver operations and related processing operations in the respective method embodiments.

[0410] In addition, the transceiver unit 1010 may also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit.

[0411] It should be noted that the device in Figure 10 can be the communication device (such as a terminal device or a network device) in the aforementioned embodiments, or it can be a chip or a chip system, such as a system on a chip (SoC). The transceiver unit can be an input / output circuit or a communication interface; the processing unit is a processor, microprocessor, or integrated circuit integrated on the chip. No limitations are imposed here.

[0412] Referring to Figure 11, as an example, Figure 11 is a schematic diagram of another communication device 1100 provided in an embodiment of this application. The device 1100 includes a processor 1110, which is coupled to a memory 1120. The memory 1120 is used to store computer programs or instructions and / or data. The processor 1110 is used to execute the computer programs or instructions stored in the memory 1120, or to read the data stored in the memory 1120, in order to execute the methods in the above method embodiments.

[0413] Optionally, there may be one or more processors 1110.

[0414] Optionally, the memory 1120 may be one or more.

[0415] Alternatively, the memory 1120 can be integrated with the processor 1110, or it can be set separately.

[0416] Optionally, as shown in FIG11, the device 1100 further includes a transceiver 1130 for receiving and / or transmitting signals. For example, the processor 1110 is used to control the transceiver 1130 to receive and / or transmit signals.

[0417] As an example, processor 1110 may have the functions of processing unit 1020 shown in FIG10, memory 1120 may have the functions of storage unit, and transceiver 1130 may have the functions of transceiver unit 1010 shown in FIG10.

[0418] As one option, the device 1100 is used to implement the operations performed by a communication device (such as a terminal device or a network device) in the various method embodiments described above.

[0419] For example, processor 1110 is used to execute computer programs or instructions stored in memory 1120 to implement the relevant operations of the communication device in the various method embodiments described above.

[0420] It should be understood that the processor mentioned in the embodiments of this application can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0421] It should also be understood that the memory mentioned in the embodiments of this application can be volatile memory and / or non-volatile memory. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be 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 linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0422] 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, or discrete hardware component, the memory (storage module) can be integrated into the processor.

[0423] It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0424] Referring to Figure 12, as an example, Figure 12 is a schematic diagram of a chip system 1200 provided in an embodiment of this application. The chip system 1200 (or may also be referred to as a processing system) includes logic circuitry 1210 and an input / output interface 1220.

[0425] The logic circuit 1210 can be a processing circuit in the chip system 1200. The logic circuit 1210 can be coupled to a memory unit, calling instructions from the memory unit, enabling the chip system 1200 to implement the methods and functions of the embodiments of this application. The input / output interface 1220 can be an input / output circuit in the chip system 1200, outputting processed information from the chip system 1200, or inputting data or signaling information to be processed into the chip system 1200 for processing.

[0426] As one approach, the chip system 1200 is used to implement operations performed by communication devices (such as terminal devices or network devices) in the various method embodiments described above.

[0427] For example, logic circuit 1210 is used to implement processing-related operations performed by a communication device (such as a terminal device or a network device) in the above method embodiments; input / output interface 1220 is used to implement sending and / or receiving-related operations performed by a communication device (such as a terminal device or a network device) in the above method embodiments.

[0428] This application also provides a computer-readable storage medium storing a computer program or instructions for implementing the methods executed by a communication device (such as a terminal device or a network device) in the above-described method embodiments. For example, when the computer program or instructions are run on the communication device, they cause the communication device (such as a terminal device or a network device) to execute the above-described methods (such as method 200, method 700-900).

[0429] This application also provides a computer program product comprising instructions that, when executed by a computer, implement the methods described above as performed by a communication device (such as a terminal device or a network device). For example, when the computer program or instructions are run on the communication device, the communication device (such as a terminal device or a network device) performs the methods described above (such as method 200, methods 700-900).

[0430] This application also provides a communication system that includes the terminal device and / or network device described in the preceding embodiments. For example, the system includes the terminal device and network device shown in the embodiment of FIG2. As another example, the system includes the terminal device and network device shown in the embodiment of FIG7. As yet another example, the system includes the terminal device and network device shown in the embodiment of FIG8. As yet another example, the system includes the terminal device and network device shown in the embodiment of FIG9.

[0431] The explanations and beneficial effects of the relevant contents in any of the devices provided above can be found in the corresponding method embodiments provided above, and will not be repeated here.

[0432] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of apparatus or units may be electrical, mechanical, or other forms.

[0433] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially 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, all or part of the processes or functions described in the embodiments of this application are generated. 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. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. 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 integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state disks, SSDs). For example, the aforementioned available media include, but are not limited to, USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks, and other media capable of storing program code.

[0434] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, include: Receive first indication information, the first indication information indicates monitoring information, the monitoring information includes monitoring information of each group of parameters in N groups of parameters, the N groups of parameters are used to determine the precoding matrix, and the monitoring information of each group of parameters in N groups of parameters is used to determine whether the group of parameters needs to be updated, where N is an integer greater than or equal to 1; Determine the monitoring information.

2. The method according to claim 1, characterized in that, The N sets of parameters include the first set of parameters, and the method further includes: Send or receive a second indication message, which indicates that the first set of parameters needs to be updated.

3. The method according to claim 2, characterized in that, The second indication information also indicates resource information for a reference signal used to measure the first set of parameters.

4. The method according to claim 2 or 3, characterized in that, After sending the second instruction information, the method further includes: Receive reference signal; The first set of parameters is measured based on the reference signal; Send a first value or a first offset, wherein the first value is the value of the first set of parameters obtained based on the reference signal, the first offset is the offset between the first value and a second value, and the second value is the value of the first set of parameters before the reference signal measurement.

5. The method according to claim 4, characterized in that, Before receiving the reference signal, the method further includes: Receive third indication information, which indicates the resource information of the reference signal.

6. The method according to claim 2, characterized in that, The second indication information indicates that the first set of parameters needs to be updated, including: the second indication information indicates at least one of the following: resource information of the reference signal, the first set of parameters, or indication information that the first set of parameters needs to be updated; The reference signal is used to measure the first set of parameters.

7. The method according to claim 5 or 6, characterized in that, The resource information of the reference signal includes the first set of parameters; or, The resource information of the reference signal is related to the first set of parameters.

8. The method according to claim 2, characterized in that, After receiving the second instruction information, the method further includes: Send a reference signal; Receive a first value or a first offset, wherein the first value is the value of the first set of parameters obtained based on the reference signal, the first offset is the offset between the first value and a second value, and the second value is the value of the first set of parameters before the reference signal is measured.

9. The method according to claim 8, characterized in that, Before sending the reference signal, the method further includes: Send a third indication message, which indicates the resource information of the reference signal.

10. The method according to any one of claims 3, 5, 6, 7, or 9, characterized in that, The resources of the reference signal are determined based on the first set of parameters.

11. The method according to any one of claims 3, 5, 6, 7, 9, or 10, characterized in that, The resource information of the reference signal includes at least one of the following: the density of the reference signal, the frequency domain information of the reference signal, or the time domain information of the reference signal.

12. The method according to claim 1, characterized in that, The N sets of parameters include the first set of parameters, and the method further includes: Send or receive a fourth indication message, which indicates that the first set of parameters does not need to be updated.

13. The method according to any one of claims 1 to 12, characterized in that, The N sets of parameters include the first set of parameters, and the method further includes: The first set of parameters is measured periodically based on the period of the first set of parameters.

14. The method according to claim 13, characterized in that, The N sets of parameters also include a second set of parameters. The period of the reference signal used to measure the first set of parameters is different from the period of the reference signal used to measure the second set of parameters; and / or, The density of the reference signal used to measure the first set of parameters is different from the density of the reference signal used to measure the second set of parameters.

15. The method according to claim 1, characterized in that, The method further includes: Send or receive a fifth indication message, the fifth indication message indicating a second offset, the second offset being an offset of channel state information, the second offset being determined based on at least one set of parameters from the N sets of parameters.

16. The method according to claim 15, characterized in that, The channel state information includes at least one of the following: precoding matrix indicator, channel quality indicator, rank indicator, or MCS.

17. The method according to any one of claims 1 to 16, characterized in that, The N sets of parameters include a first set of parameters, and the monitoring information of the first set of parameters includes monitoring indicators and / or threshold information of the first set of parameters. The monitoring indicators include at least one of the following: channel parameters, end-to-end performance indicators, or status indicators.

18. The method according to any one of claims 1 to 17, characterized in that, The N sets of parameters include at least one of the following parameters: angle, time delay, power, or Doppler.

19. A communication method, characterized in that, include: The monitoring information is determined, which includes the monitoring information of each of the N sets of parameters. The N sets of parameters are used to determine the precoding matrix. The monitoring information of each of the N sets of parameters is used to determine whether the set of parameters needs to be updated. N is an integer greater than or equal to 1. Send a first indication message, which indicates the monitoring information.

20. The method according to claim 19, characterized in that, The N sets of parameters include the first set of parameters, and the method further includes: Send or receive a second indication message, which indicates that the first set of parameters needs to be updated.

21. The method according to claim 20, characterized in that, The second indication information also indicates resource information for a reference signal used to measure the first set of parameters.

22. The method according to claim 20 or 21, characterized in that, After sending the second instruction information, the method further includes: Receive reference signal; The first set of parameters is measured based on the reference signal; Send a first value or a first offset, wherein the first value is the value of the first set of parameters obtained based on the reference signal, the first offset is the offset between the first value and a second value, and the second value is the value of the first set of parameters before the reference signal measurement.

23. The method according to claim 22, characterized in that, Before receiving the reference signal, the method further includes: Receive third indication information, which indicates the resource information of the reference signal.

24. The method according to claim 20, characterized in that, The second indication information indicates that the first set of parameters needs to be updated, including: the second indication information indicates at least one of the following: resource information of the reference signal, the first set of parameters, and indication information that the first set of parameters needs to be updated; The reference signal is used to measure the first set of parameters.

25. The method according to claim 23 or 24, characterized in that, The resource information of the reference signal includes the first set of parameters; or, The resource information of the reference signal is related to the first set of parameters.

26. The method according to claim 20, characterized in that, After receiving the second instruction information, the method further includes: Send a reference signal; Receive a first value or a first offset, wherein the first value is the value of the first set of parameters obtained based on the reference signal, the first offset is the offset between the first value and a second value, and the second value is the value of the first set of parameters before the reference signal is measured.

27. The method according to claim 26, characterized in that, Before sending the reference signal, the method further includes: Send a third indication message, which indicates the resource information of the reference signal.

28. The method according to any one of claims 21, 23, 24, 25, or 27, characterized in that, The resources of the reference signal are determined based on the first set of parameters.

29. The method according to any one of claims 21, 23, 24, 25, 27, or 28, characterized in that, The resource information of the reference signal includes at least one of the following: the density of the reference signal, the frequency domain information of the reference signal, and the time domain information of the reference signal.

30. The method according to claim 19, characterized in that, The N sets of parameters include the first set of parameters, and the method further includes: Send or receive a fourth indication message, which indicates that the first set of parameters does not need to be updated.

31. The method according to any one of claims 19 to 30, characterized in that, The N sets of parameters include the first set of parameters, and the method further includes: The first set of parameters is measured periodically based on the period of the first set of parameters.

32. The method according to claim 31, characterized in that, The N sets of parameters also include a second set of parameters. The period of the reference signal used to measure the first set of parameters is different from the period of the reference signal used to measure the second set of parameters; and / or, The density of the reference signal used to measure the first set of parameters is different from the density of the reference signal used to measure the second set of parameters.

33. The method according to claim 19, characterized in that, The method further includes: Send or receive a fifth indication message, the fifth indication message indicating a second offset, the second offset being an offset of channel state information, the second offset being determined based on at least one set of parameters from the N sets of parameters.

34. The method according to claim 33, characterized in that, The channel state information includes at least one of the following: precoding matrix indicator, channel quality indicator, rank indicator, and MCS.

35. The method according to any one of claims 19 to 34, characterized in that, The N sets of parameters include a first set of parameters, and the monitoring information of the first set of parameters includes monitoring indicators and / or threshold information of the first set of parameters. The monitoring indicators include at least one of the following: channel parameters, end-to-end performance indicators, or status indicators.

36. The method according to any one of claims 19 to 35, characterized in that, The N sets of parameters include at least one of the following parameters: angle, time delay, power, or Doppler.

37. A communication method, characterized in that, include: Based on the location information, a second offset is determined. The second offset indicates the offset of the channel state information, and the offset of the channel state information is related to the location information. Send the second offset.

38. The method according to claim 37, characterized in that, The location information includes at least one of the following: the moving distance of the terminal device, and the location range of the terminal device.

39. A communication method, characterized in that, include: The monitoring information is determined, which includes the monitoring information of each of the N sets of parameters. The N sets of parameters are used to determine the precoding matrix. The monitoring information of each of the N sets of parameters is used to determine whether the set of parameters needs to be updated. N is an integer greater than or equal to 1. Send a second instruction message or a fourth instruction message, wherein the second instruction message indicates that the first group of parameters in the N groups of parameters should be updated, and the fourth instruction message indicates that the first group of parameters in the N groups of parameters does not need to be updated.

40. The method according to claim 39, characterized in that, After sending the second instruction information, the method further includes: Receive reference signal; The first set of parameters is measured based on the reference signal; Send a first value or a first offset, wherein the first value is the value of the first set of parameters obtained based on the reference signal, the first offset is the offset between the first value and a second value, and the second value is the value of the first set of parameters before the reference signal measurement.

41. The method according to claim 40, characterized in that, Before receiving the reference signal, the method further includes: Receive third indication information, which indicates the resource information of the reference signal.

42. The method according to any one of claims 39 to 41, characterized in that, The second indication information indicates that the first set of parameters needs to be updated, including: The second indication information indicates at least one of the following: resource information of the reference signal, the first set of parameters, and indication information for updating the first set of parameters; wherein the reference signal is used to measure the first set of parameters.

43. The method according to claim 42, characterized in that, The resource information of the reference signal includes the first set of parameters; or, the resource information of the reference signal is associated with the first set of parameters.

44. The method according to claim 42 or 43, characterized in that, The resources of the reference signal are determined based on the first set of parameters.

45. The method according to any one of claims 42 to 44, characterized in that, The resource information of the reference signal includes at least one of the following: the density of the reference signal, the frequency domain information of the reference signal, and the time domain information of the reference signal.

46. ​​The method according to any one of claims 39 to 45, characterized in that, The method further includes: The first set of parameters is measured periodically based on the period of the first set of parameters.

47. The method according to claim 46, characterized in that, The N sets of parameters further include a second set of parameters, wherein the period of the reference signal used to measure the first set of parameters is different from the period of the reference signal used to measure the second set of parameters; and / or, the density of the reference signal used to measure the first set of parameters is different from the density of the reference signal used to measure the second set of parameters.

48. The method according to any one of claims 39 to 47, characterized in that, The method further includes: sending a fifth indication message, the fifth indication message indicating a second offset, the second offset being an offset of channel state information, the second offset being determined based on at least one set of parameters from the N sets of parameters.

49. The method according to any one of claims 39 to 48, characterized in that, The channel state information includes at least one of the following: precoding matrix indicator, channel quality indicator, rank indicator, and MCS.

50. The method according to any one of claims 39 to 49, characterized in that, The monitoring information of the first set of parameters includes the monitoring indicators and / or threshold information of the first set of parameters, wherein the monitoring indicators include at least one of the following: channel parameters, end-to-end performance indicators, and status indicators.

51. The method according to any one of claims 39 to 50, characterized in that, The first set of parameters includes at least one of the following parameters: angle, time delay, power, and Doppler.

52. A communication method, characterized in that, include: The system receives a second or a fourth instruction. The second instruction indicates that the first group of parameters in the N groups of parameters needs to be updated, and the fourth instruction indicates that the first group of parameters in the N groups of parameters does not need to be updated. Whether the first group of parameters needs to be updated is determined based on the monitoring information of the first group of parameters in the monitoring information. The monitoring information includes the monitoring information of each group of parameters in the N groups of parameters. The N groups of parameters are used to determine the precoding matrix, and the monitoring information of each group of parameters in the N groups of parameters is used to determine whether the group of parameters needs to be updated. N is an integer greater than or equal to 1.

53. The method according to claim 52, characterized in that, After receiving the second instruction information, the method further includes: Send a reference signal; Receive a first value or a first offset, wherein the first value is the value of the first set of parameters obtained based on the reference signal, the first offset is the offset between the first value and a second value, and the second value is the value of the first set of parameters before the reference signal is measured.

54. The method according to claim 53, characterized in that, Before sending the reference signal, the method further includes: Send a third indication message, which indicates the resource information of the reference signal.

55. The method according to any one of claims 52 to 54, characterized in that, The second indication information indicates that the first set of parameters needs to be updated, including: The second indication information indicates at least one of the following: resource information of the reference signal, the first set of parameters, and indication information for updating the first set of parameters; wherein the reference signal is used to measure the first set of parameters.

56. The method according to claim 55, characterized in that, The resource information of the reference signal includes the first set of parameters; or, the resource information of the reference signal is associated with the first set of parameters.

57. The method according to claim 55 or 56, characterized in that, The resources of the reference signal are determined based on the first set of parameters.

58. The method according to any one of claims 55 to 57, characterized in that, The resource information of the reference signal includes at least one of the following: the density of the reference signal, the frequency domain information of the reference signal, and the time domain information of the reference signal.

59. The method according to any one of claims 52 to 58, characterized in that, The method further includes: The first set of parameters is measured periodically based on the period of the first set of parameters.

60. The method according to claim 59, characterized in that, The N sets of parameters further include a second set of parameters, wherein the period of the reference signal used to measure the first set of parameters is different from the period of the reference signal used to measure the second set of parameters; and / or, the density of the reference signal used to measure the first set of parameters is different from the density of the reference signal used to measure the second set of parameters.

61. The method according to any one of claims 52 to 60, characterized in that, The method further includes: sending a fifth indication message, the fifth indication message indicating a second offset, the second offset being an offset of channel state information, the second offset being determined based on at least one set of parameters from the N sets of parameters.

62. The method according to any one of claims 52 to 61, characterized in that, The channel state information includes at least one of the following: precoding matrix indicator, channel quality indicator, rank indicator, and MCS.

63. The method according to any one of claims 52 to 62, characterized in that, The monitoring information of the first set of parameters includes the monitoring indicators and / or threshold information of the first set of parameters, wherein the monitoring indicators include at least one of the following: channel parameters, end-to-end performance indicators, and status indicators.

64. The method according to any one of claims 52 to 63, characterized in that, The first set of parameters includes at least one of the following parameters: angle, time delay, power, and Doppler.

65. A communication device, characterized in that, Includes modules or units for performing the method according to any one of claims 1 to 64.

66. A communication device, characterized in that, Includes a processor, the processor being configured to cause the communication device to perform the method of any one of claims 1 to 64.

67. The apparatus according to claim 66, characterized in that, The device also includes a memory and / or a communication interface. The memory, coupled to the processor, is used to store computer programs or instructions; The communication interface is coupled to the processor and is used for inputting and / or outputting information.

68. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed on a communication device, cause the communication device to perform the method as described in any one of claims 1 to 64.

69. A computer program product, characterized in that, The computer program product includes a computer program or instructions that, when executed on a communication device, cause the communication device to perform the method as described in any one of claims 1 to 64.

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