Beam measurement and indication method and related apparatus

Abstract

Provided are a beam measurement and indication method and a related apparatus. The method comprises: receiving first indication information, the first indication information comprising information of at least one first resource; and, according to the information of the at least one first resource, performing measurement. The at least one first resource may be available resources, for example, some resources among resources having superior or optimal channel quality. Measuring the channel quality of a beam according to the received information of the at least one first resource can reduce the delay of beam measurement.

Description

A beam measurement and indication method and related device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 6, 2023, with application number 202311158590.6 and application name “A beam measurement and indication method and related device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communications, and in particular to a beam measurement and indication method and related devices. Background Art

[0003] During uplink and downlink transmission, network devices and terminal devices can determine the appropriate beam for signal transmission through beam measurement. Specifically, the network device can transmit different resources via different beams, and the terminal device can determine the quality of each beam by measuring the resources. The terminal device then provides feedback on the measured resource quality, and the network device determines the quality of the corresponding beam based on the feedback. The network device then uses the available beam, such as the one with the best or better quality, for transmission.

[0004] Typically, a terminal device needs to complete multiple measurement cycles to determine the channel quality between each network device's transmit beam and each terminal device's receive beam. Therefore, beam measurement takes a long time. If the available transmit beams, such as the optimal transmit beam and its corresponding optimal receive beam, change (for example, when the terminal device moves), it can take a long time to identify the new available transmit beam and its corresponding receive beam, resulting in significant latency. Therefore, reducing beam measurement latency is a critical issue.

[0005] Summary of the Invention

[0006] The present application provides a beam measurement and indication method and related devices to reduce the delay of beam measurement and thereby improve transmission performance.

[0007] In the first aspect, an embodiment of the present application provides a beam measurement method, which can be executed by a terminal device, or by a component configured in the terminal device (such as a chip, a chip system, etc.), or by a logic module or software that can realize all or part of the functions of the terminal device. This application does not limit this.

[0008] Exemplarily, the method includes: receiving first indication information, where the first indication information includes information of at least one first resource; and performing measurement according to the information of the at least one first resource.

[0009] Before performing measurement based on the information of at least one first resource, a reference signal sent by a network device may be received first. The reference signal may include one or more of a channel state information reference signal (CSI-RS), a cell specific reference signal (CS-RS), a user equipment specific reference signal (US-RS), a demodulation reference signal (DMRS), and a synchronization system / physical broadcast channel block (SS / PBCH block). It is understood that when performing measurement based on the information of at least one first resource, the reference signal sent by the network device may be measured based on the at least one first resource, and the result obtained by measuring the reference signal is the channel quality corresponding to the first resource (i.e., the channel quality of the first resource), or the channel quality corresponding to the beam (i.e., the channel quality of the beam). The beam is the beam corresponding to the first resource. Therefore, it is understood that beam measurement may also be referred to as reference signal measurement. In the above technical solution, the at least one first resource may be a resource that meets the channel quality requirements or a suitable resource. For example, the at least one first resource may be a part of the resources with better channel quality. By measuring the channel quality corresponding to the beam according to the received information of at least one first resource, the delay of the beam measurement can be reduced.

[0010] In combination with the first aspect, in some possible implementations of the first aspect, the method may further include: sending first reporting information when the first condition is met, the first reporting information including information of a fourth resource, the fourth resource being a resource in at least one first resource whose channel quality is better than the channel quality corresponding to the third resource; the first condition includes at least one of the following: the channel quality corresponding to the third resource is lower than the first threshold; the channel quality degradation value corresponding to the third resource exceeds the second threshold; there are at least k first resources whose channel quality is better than the channel quality corresponding to the third resource, and k is a positive integer.

[0011] It can be understood that the fourth resource belongs to the first resource, that is, the fourth resource is one or more of the at least one first resource. Moreover, the channel quality corresponding to the fourth resource is better than the quality of the third resource. Here, better than can mean greater than or equal to, or higher than or equal to. In the above technical solution, the first condition is used to identify the available beams, such as whether the beam with better or optimal channel quality has changed. By sending the first reporting information when the first condition is met, the network device can be informed of the latest beam situation in a timely manner, so that the better or optimal beam can be used for communication, which can improve the transmission performance. If the first condition is not met, it means that the channel quality corresponding to the beam has not changed much and does not affect the transmission performance. The first reporting information may not be sent, thereby saving communication resources.

[0012] On the second aspect, the present application provides a beam indication method, which can be executed by a network device, or by a component configured in the network device (such as a chip, a chip system, etc.), or by a logic module or software that can realize all or part of the functions of the network device. The present application does not limit this.

[0013] Exemplarily, the method includes: sending first indication information, where the first indication information includes information of at least one first resource.

[0014] In the above technical solution, information of at least one first resource is sent so that the terminal device can measure the channel quality of the beam based on the at least one first resource, which can reduce the delay of the beam measurement.

[0015] In combination with the second aspect, in some possible implementations of the second aspect, the method may also include: receiving first reporting information, the first reporting information including information of a fourth resource, the fourth resource being a resource in the first resource whose channel quality is better than the channel quality corresponding to the third resource.

[0016] In the above technical solution, the first reported information includes information about the fourth resource, where the fourth resource is a resource among the first resources having a channel quality that is better than the channel quality of the third resource. After receiving the first reported information, the network device may update available beams, such as beams with the best or better channel quality, so that the updated best or better beams can be used for communication, thereby improving transmission performance.

[0017] In combination with the first aspect and the second aspect, in some possible implementations, the first indication information is medium access control-element MAC-CE signaling.

[0018] That is, the medium access control-control element (MAC-CE) signaling sent by the network device to the terminal device may include information about at least one first resource. MAC-CE signaling may also be called media access control-control element (MAC-CE) signaling.

[0019] In combination with the first aspect and the second aspect, in some possible implementations, the first indication information is medium access control-element MAC-CE signaling and radio resource control (RRC) signaling.

[0020] That is to say, the MAC-CE signaling and RRC signaling sent by the network device to the terminal device may include information about at least one first resource.

[0021] In combination with the first aspect and the second aspect, in some possible implementations, the first indication information is radio access control RRC signaling.

[0022] That is to say, the RRC signaling sent by the network device to the terminal device may include information about at least one first resource.

[0023] In combination with the first aspect and the second aspect, in some possible implementations, the first indication information includes at least one of the following: a resource set corresponding to the at least one first resource, the number of the at least one first resource, the index of the at least one first resource, the beam information of the at least one first resource, the time-frequency resource mapping information of the at least one first resource, the power information of the at least one first resource, the scrambling index information of the at least one first resource, the periodic information of the at least one first resource, the time slot information of the at least one first resource, the resource configuration information corresponding to the at least one first resource, and the reporting configuration information corresponding to the at least one first resource.

[0024] By sending information about at least one first resource to a terminal device, the terminal device can measure a reference signal corresponding to the first resource based on the received information about at least one first resource, thereby obtaining the channel quality of a beam corresponding to at least one first resource.

[0025] In combination with the first aspect and the second aspect, in some possible implementations, at least one first resource uses the same first information, and the first information includes at least one of the following: beam information, time-frequency resource mapping information, power information, scrambling index information, period information and time slot information.

[0026] At least one first resource using the same first information can be understood as follows: when at least one first resource uses the same first information, the first indication information can include one piece of first information shared by the at least one first resource, without the need to include multiple pieces of the same first information in the first indication information. In other words, at least one first resource uses the same first information. Therefore, in the above technical solution, the use of the same first information by at least one first resource can reduce waste of transmission resources.

[0027] In combination with the first aspect and the second aspect, in some possible implementations, information of at least one first resource is used to update information of resources in a resource set configured by radio access control (RRC) signaling. Optionally, the first indication information includes information of a resource set.

[0028] That is to say, before receiving the first indication information, the step of receiving information about resources in a resource set configured by RRC signaling may also be included. The resources in a resource set configured by RRC signaling may include at least one first resource, that is, the initial information about at least one first resource may be configured by RRC signaling, and the information about the at least one first resource may be updated subsequently by MAC-CE signaling. Furthermore, in order for MAC-CE to determine the resource set to which the resource to be updated belongs, the first indication information may include information about the resource set. For example, the index of the resource set, the index of the first resource in the resource set, one or more items of information about the first resource in the resource set, etc.

[0029] In combination with the first aspect and the second aspect, in some possible implementations, the first indication information includes information of at least one second resource, and the at least one first resource and the at least one second resource are associated one-to-one; the information of the at least one second resource includes an index of a resource set corresponding to the at least one second resource and / or an index of the at least one second resource.

[0030] After receiving the first indication information, the terminal device can determine at least one second resource based on the index of at least one second resource set and / or the index of at least one second resource included in the first indication information, thereby obtaining information of at least one second resource.

[0031] In combination with the first aspect and the second aspect, in some possible implementations, each first resource adopts the second information of the second resource associated with each first resource; or, the second information of each first resource is determined based on the second information of the second resource associated with each first resource.

[0032] Each first resource uses the second information of the second resource associated with each first resource, that is, the second information of the second resource associated with each first resource is used as the second information of each first resource. Alternatively, the second information of the first resource is determined based on the second information of the second resource associated with it. In the above technical solution, the information of the second resource includes the second information of the second resource. By associating with at least one second resource, using the second information of the second resource associated with the first resource as the second information of the first resource, or determining the second information of the first resource based on the second information of the second resource associated with the first resource, the use of transmission resources can be reduced and transmission performance can be improved.

[0033] In combination with the first aspect and the second aspect, in some possible implementations, the first indication information further includes a second information offset, and the second information of each first resource is determined based on the second information of the second resource associated with each first resource and the second information offset.

[0034] That is, the first resource does not adopt the second information of the second resource associated with the first resource, but is determined based on the second information of the second resource associated with the first resource and the second information offset.

[0035] In combination with the first aspect and the second aspect, in some possible implementations, the second information includes at least one of the following: beam information, time-frequency resource mapping information, power information, scrambling index information, period information and time slot information.

[0036] That is, the beam information of the first resource may adopt the beam information of the second resource associated with the first resource. The first resource may adopt the time-frequency resource mapping information of the second resource associated with the first resource. The first resource may adopt the power information of the second resource associated with the first resource. The first resource may adopt the scrambling index information of the second resource associated with the first resource. The first resource may adopt the period information of the second resource associated with the first resource. The first resource may adopt the time slot information of the second resource associated with the first resource. Alternatively, the beam information of the first resource may be determined based on the beam information and beam offset of the second resource. The time-frequency resource mapping information of the first resource may be determined based on the time-frequency resource mapping information and time-frequency resource offset of the second resource. The power information of the first resource may be determined based on the power information and power offset of the second resource. The scrambling index information of the first resource may be determined based on the scrambling index information and scrambling index offset of the second resource. The period information of the first resource may be determined based on the period information and period offset of the second resource. The time slot information of the first resource may be determined based on the time slot information and time slot offset of the second resource.

[0037] In combination with the first aspect and the second aspect, in some possible implementations, the information of the third resource is configured through RRC signaling, or the information of the third resource is included in the first indication information, or the third resource is the nth first resource among at least one first resource, where n is a positive integer.

[0038] In the above technical solution, the indication of the third resource can be realized so that the terminal device can judge whether the channel quality of the beam corresponding to the at least one first resource has changed based on the third resource.

[0039] In combination with the first aspect and the second aspect, in some possible implementations, the first reporting information includes at least one of the following: an index of the fourth resource, channel state information of the fourth resource, channel state information of the third resource, and an index of the third resource.

[0040] In the above technical solution, by including at least one of the index of the fourth resource, the channel state information of the fourth resource, the channel state information of the third resource, and the index of the third resource in the first reporting information, the network device can timely update the available beams, such as the optimal beam and / or the better beam, according to the first reporting information.

[0041] In a third aspect, the present application provides a communications device that can implement the method described in the first aspect and any possible implementation of the first aspect, or implement the method described in the second aspect and any possible implementation of the second aspect. The device includes corresponding units for executing the above methods. The units included in the device can be implemented in software and / or hardware.

[0042] In a fourth aspect, the present application provides a communication device comprising a processor. The processor is coupled to a memory and can be configured to execute a computer program in the memory to implement the method of the first aspect and any possible implementation of the first aspect, or to implement the method of the second aspect and any possible implementation of the second aspect.

[0043] Optionally, the apparatus further includes a communication interface, and the processor is coupled to the communication interface. The communication interface is configured to receive signals from a communication device other than the apparatus and transmit the signals to the processor, or to transmit signals from the processor to the communication device other than the apparatus. Exemplarily, the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface.

[0044] Optionally, the device further comprises a memory, the processor being coupled to the memory, wherein the memory is used to store program instructions and data.

[0045] In a fifth aspect, the present application provides a computer-readable storage medium, which stores a computer program or instructions. When the computer program or instructions are executed, it implements the method in the first aspect and any possible implementation of the first aspect, or implements the method in the second aspect and any possible implementation of the second aspect.

[0046] In a sixth aspect, the present application provides a computer program product comprising instructions, which, when executed, implement the method of the first aspect and any possible implementation of the first aspect, or implement the method of the second aspect and any possible implementation of the second aspect.

[0047] In the seventh aspect, the present application provides a chip system, which includes at least one processor for supporting the implementation of the functions involved in the above-mentioned first aspect and any possible implementation method of the first aspect, or for supporting the implementation of the functions involved in the above-mentioned second aspect and any possible implementation method of the second aspect, for example, receiving or processing the data involved in the above-mentioned method, etc.

[0048] In one possible design, the chip system further includes a memory, which is used to store program instructions and data, and the memory is located inside or outside the processor.

[0049] The chip system can be composed of chips, or can include chips and other discrete devices.

[0050] In an eighth aspect, the present application provides a communication system, comprising a terminal device for implementing the method described in the first aspect and any possible implementation of the first aspect, and a network device for implementing the method described in the second aspect and any possible implementation of the second aspect.

[0051] It should be understood that the third to eighth aspects of the present application correspond to the technical solutions of the first and second aspects of the present application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation methods are similar and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] FIG1 is a possible, non-limiting schematic diagram of a system provided in an embodiment of the present application;

[0053] FIG2 is a schematic diagram of beam management provided by an embodiment of the present application;

[0054] FIG3 is a schematic diagram of another beam management provided in an embodiment of the present application;

[0055] FIG4 is a schematic diagram of the system architecture of a communication system provided in an embodiment of the present application;

[0056] FIG5 is a schematic diagram of a communication device performing communication according to an embodiment of the present application;

[0057] FIG6 is a schematic flowchart of a beam measurement method provided in an embodiment of the present application;

[0058] FIG7 is a schematic block diagram of a communication device provided in an embodiment of the present application;

[0059] FIG8 is another schematic block diagram of a communication device provided in an embodiment of the present application;

[0060] FIG9 is another schematic block diagram of a communication device provided in an embodiment of the present application;

[0061] FIG10 is a schematic diagram of the structure of a network device provided in an embodiment of the present application;

[0062] FIG11 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0063] The technical solution in this application will be described below with reference to the accompanying drawings.

[0064] The technical solution provided in this application can be applied to various communication systems.

[0065] Figure 1 is a possible, non-limiting system diagram provided by an embodiment of the present application. As shown in Figure 1, a communication system 1000 includes a radio access network (RAN) 100 and a core network (CN) 200. The RAN 100 includes at least one RAN node (such as 110a and 110b in Figure 1, collectively referred to as 110) and at least one terminal (such as 120a-120j in Figure 1, collectively referred to as 120). The RAN 100 may also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in Figure 1). The terminal 120 is connected to the RAN node 110 wirelessly. The RAN node 110 is connected to the core network 200 wirelessly or by wire. The core network devices in the core network 200 and the RAN node 110 in the RAN 100 can be different physical devices, or they can be the same physical device that integrates the core network logical functions and the radio access network logical functions.

[0066] The RAN 100 may be a cellular system related to the Third Generation Partnership Project (3GPP), such as a 4G or 5G mobile communication system, or a future-oriented evolutionary system (such as a 6G mobile communication system). The RAN 100 may also be an open access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (WiFi) system. The RAN 100 may also be a communication system that integrates two or more of the above systems.

[0067] The RAN node 110, which may also sometimes be referred to as a network device, an access network device, a RAN entity or an access node, etc., constitutes a part of the communication system to help the terminal achieve wireless access. The multiple RAN nodes 110 in the communication system 1000 may be nodes of the same type or nodes of different types. In some scenarios, the roles of the RAN node 110 and the terminal 120 are relative. For example, the network element 120i in Figure 1 may be a helicopter or a drone, which may be configured as a mobile base station. For the terminal 120j that accesses the RAN 100 through the network element 120i, the network element 120i is a base station; but for the base station 110a, the network element 120i is a terminal. The RAN node 110 and the terminal 120 are sometimes referred to as communication devices. For example, the network elements 110a and 110b in Figure 1 may be understood as communication devices with base station functions, and the network elements 120a-120j may be understood as communication devices with terminal functions.

[0068] In one possible scenario, a RAN node may be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next-generation NodeB (gNB), a next-generation base station in a sixth-generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. A RAN node may be a macro base station (such as 110a in Figure 1 ), a micro base station or an indoor station (such as 110b in Figure 1 ), a relay node or a donor node, or a wireless controller in a CRAN scenario. Alternatively, a RAN node may be a server, a wearable device, a vehicle, or an onboard device. For example, the access network device in vehicle-to-everything (V2X) technology may be a roadside unit (RSU).

[0069] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, and different RAN nodes respectively implement part of the functions of the base station. For example, the RAN node can be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU can be set separately, or they can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0070] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (Open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, this application uses CU, CU-CP, CU-UP, DU and RU as examples for description. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0071] A terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, etc. A terminal may be a mobile phone, tablet computer, computer with wireless transceiver function, wearable device, vehicle, drone, helicopter, airplane, ship, robot, robotic arm, smart home device, etc. The embodiments of the present application do not limit the device form of the terminal.

[0072] In order to better understand the method provided in the embodiments of the present application, the terms involved in the present application are briefly explained below.

[0073] 1. Beam: can be understood as spatial domain filter, spatial filter, spatial domain parameter, spatial parameter, spatial domain setting, spatial setting, Quasi-colocation (QCL) information, QCL assumption, QCL indication, transmission configuration indicator (TCI) state, or spatial relation, etc. Therefore, in this application, concepts such as beam, spatial domain filter, spatial filter, spatial domain parameter, spatial parameter, spatial setting, spatial setting, QCL information, QCL assumption, QCL indication, TCI state (including uplink TCI state or downlink TCI state), and spatial relation are equivalent, and the above concepts can be replaced with each other.

[0074] The beam used to transmit a signal may be referred to as a transmission beam (Tx beam), or may be referred to as a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, a spatial transmission parameter, a spatial domain transmission setting, or a spatial transmission setting. The downlink transmit beam may be indicated by a downlink TCI-state.

[0075] A beam used to receive a signal may be referred to as a reception beam (Rx beam), and may also be referred to as a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter, a spatial reception parameter, a spatial domain reception setting, or a spatial reception setting.

[0076] Furthermore, the beam can be a wide beam, a narrow beam, or other types of beams. The beam forming technology can be beamforming technology or other technologies. The beamforming technology can specifically be digital beamforming technology, analog beamforming technology, or hybrid digital / analog beamforming technology.

[0077] Optionally, multiple beams with the same or similar communication characteristics can be considered a single beam. A beam can include one or more antenna ports for transmitting data channels, control channels, and sounding signals. The one or more antenna ports forming a beam can also be considered an antenna port set.

[0078] 2. Reference Signals and Reference Signal Resources: Reference signals can be used for channel measurement, channel estimation, or beamforming. Reference signal resources can be used to configure reference signal transmission properties, such as time-frequency resource location, port mapping, power factor, and scrambling code. Transmitting devices can send reference signals based on reference signal resources, and receiving devices can receive reference signals based on reference signal resources.

[0079] In beam measurement, there is a corresponding relationship between the beam and the reference signal resource. The reference signal resource can be an uplink reference signal resource or a downlink reference signal resource. The uplink reference signal includes but is not limited to: sounding reference signal (SRS) and demodulation reference signal (DMRS). The downlink reference signal includes but is not limited to: CSI-RS, cell specific reference signal (CS-RS), UE specific reference signal (US-RS), demodulation reference signal (DMRS), and synchronization system / physical broadcast channel block (SS / PBCH block). Among them, SS / PBCH block can be referred to as SSB.

[0080] Reference signal resources are configured via RRC messages. In terms of the configuration structure, a resource is an information element (IE), which includes relevant parameters of its corresponding uplink / downlink reference signal, such as the type of uplink / downlink reference signal, the resource element carrying the uplink / downlink reference signal, the transmission time and period of the uplink / downlink reference signal, the number of ports used to transmit the uplink / downlink reference signal, etc. Each uplink / downlink reference signal resource has a unique index to identify the reference signal resource. It is understood that the index of a reference signal resource can also be referred to as the identifier of the reference signal resource, and the embodiments of the present application do not impose any restrictions on this.

[0081] In addition, in the present application, the parameters used to measure the beam quality include received signal strength indicator (RSSI), reference signal received power (RSRP), etc., but are not limited thereto. For example, the beam quality can also be measured by parameters such as reference signal receiving quality (RSRQ), signal-noise ratio (SNR), signal to interference plus noise ratio (SINR), precoding matrix indicator (PMI), transmitted precoding matrix indicator (TPMI), rank indicator (RI), transmitted rank indicator (TRI), layer indicator (LI), and timing advance (TA).

[0082] It should be understood that the reference signals and corresponding reference signal resources listed above are only exemplary and should not constitute any limitation to this application. This application does not exclude the possibility of defining other reference signals in future protocols to achieve the same or similar functions.

[0083] 3. TCI status: In uplink and downlink transmission, both the network device and the terminal device need to use the correct beam to achieve optimal transmission. In downlink transmission, the network device needs to indicate to the terminal device the downlink transmit beam it uses so that the terminal device knows which receive beam to use for reception. In uplink transmission, the network device also needs to indicate to the terminal device which uplink transmit beam the terminal device needs to use, because the network device knows which beam of the terminal device is available, such as the best (optimal) beam. Both uplink and downlink beams can be indicated by the TCI status. For example, the beam used for downlink transmission is indicated by the downlink TCI status, and the beam used for uplink transmission is indicated by the uplink TCI status. In the 3rd Generation Partnership Project (3GPP) protocol, the network device indicates the specific TCI status to the terminal device through the TCI field in the downlink control information (DCI). The TCI field is 3 bits in size and can specifically represent 8 different field values ​​(codepoints). Each field value of the TCI field can be associated with an index of a TCI state, and the TCI state index can uniquely identify a TCI state, which can be a downlink TCI state or an uplink TCI state. Each field value of the TCI field can also be associated with the indexes of two TCI states, and the two TCI state indexes can uniquely identify two TCI states, which can be a downlink TCI state and an uplink TCI state, two downlink TCI states, or two uplink TCI states.

[0084] The downlink TCI state includes several parameters, through which the terminal device can determine the relevant information of the downlink transmit beam, and thus determine which receive beam to use. The TCI state is configured by the network device for each terminal device. Each TCI state includes its own TCI index "tci-StateId" and two QCL information "QCL-Info". Each "QCL-Info" includes a reference signal resource, which is used to indicate that the downlink transmission using this TCI state should use the same downlink timing, frequency offset, or receive beam as the reference signal resource. Which one it is depends on the type of "QCL-Info", that is, another field QCL type "qcl-Type" of "QCL-Info". "qcl-Type" can have four values, namely type (type) A, typeB, typeC, and typeD. When the type is typeA, typeB and typeC, the downlink transmission using this TCI state should use the same downlink timing and frequency offset information as the reference signal resource. When the type is typeD, the downlink transmission using this TCI-state should use the same receive beam as the reference signal resource. Of the two "QCL-Info" messages mentioned above, one is type D, and the other is type A, type B, or type C. The terminal device can use the type D "QCL-Info" to determine which receive beam to use for the corresponding downlink transmission. The specific steps are as follows:

[0085] 1) The network device indicates the downlink TCI status of a certain downlink transmission to the terminal device through DCI (indicated by the TCI field).

[0086] 2) The terminal device determines the reference signal resources in the “QCL-Info” of type D in the TCI state.

[0087] 3) Determine the receive beam corresponding to the downlink transmission as the receive beam for the reference signal resource. It should be understood that, through the beam management process, the terminal device can determine which receive beam is better (more optimal) to use for receiving the reference signal resource and use that receive beam as the receive beam for the reference signal resource.

[0088] Similarly, the uplink TCI state includes a reference signal resource, which is used to indicate that the uplink transmission using this TCI state should use the same uplink transmission beam as the reference signal resource. The terminal device can determine which transmission beam to use to send the corresponding uplink transmission through the reference signal resource. In the uplink TCI state, the reference signal resource is not included in the "QCL-Info" and does not distinguish between QCL types, because there is no need to refer to the uplink timing and frequency offset information, only the uplink transmission beam. The specific execution steps are as follows:

[0089] 1) The network device indicates the uplink TCI status of a downlink transmission to the terminal device through DCI (indicated by the TCI field).

[0090] 2) The terminal device determines the reference signal resources in the TCI state.

[0091] 3) Determine the transmission beam corresponding to the uplink transmission as the transmission beam of the reference signal resource.

[0092] It should be understood that the structures of the uplink TCI state and the downlink TCI state can be referred to known protocols and will not be described in detail here.

[0093] 4. Beam management

[0094] Beam management is divided into downlink beam management and uplink beam management.

[0095] 1) Downlink beam management

[0096] Downlink beam management mainly includes the following steps:

[0097] S1. The network device sends measurement configuration information to the terminal device. The network device sends measurement configuration information to the terminal device via an RRC message. The information mainly consists of two parts: resource configuration information and reporting configuration information. Resource configuration information is information related to reference signal resources and is configured in the protocol using a three-level structure: resource configuration (resourceConfig) - resource set (resourceSet) - resource (resource). The network device can configure one or more resource configurations (also written as "resourceSetting") for the terminal device. Each resource configuration includes one or more resource sets, and each resource set can include one or more resources. Each resource configuration / resource set / resource includes its own index. In addition, it also includes other parameters such as the resource period and the signal type corresponding to the resource. Reporting configuration information refers to information related to measurement result reporting and is configured in the protocol using a reporting configuration (ReportConfig). The network device can configure one or more reporting configurations for the terminal device. Each reporting configuration includes reporting metrics, reporting time and period, reporting format, and other reporting-related information. The reporting configuration also includes a resource configuration index, which indicates the measurement configuration used to measure the reported result. For the specific format of resource configuration and reporting configuration, please refer to the known protocol and will not be described in detail here.

[0098] S2. The network device sends a downlink reference signal on the resource element corresponding to the resource configured by the resource configuration information, so that the terminal device determines the quality of each resource (or the quality of the reference signal, or the quality of the beam corresponding to the resource, or the channel quality of each resource, the channel quality corresponding to each resource, the channel quality of the beam corresponding to each resource, the channel quality of each beam, the channel quality of each beam, etc.) by measuring the downlink reference signal.

[0099] S3. The terminal device measures the downlink reference signal according to the measurement configuration information.

[0100] S4. The terminal device sends a beam measurement report to the network device. The beam measurement report may include the index of one or more resources, the quality of the resources, etc. Table 1 shows the reporting format used for beam measurement in the R15 protocol. Among them, the CSI-RS index (CSI-RS index, CRI) field and the SSB resource index (SSBRI) field are used to indicate the resource index to be reported. Only CRI or SSBRI can be reported, or both can be reported. and is the length of the CRI and SSBRI fields. RSRP represents the resource quality. RSRP is reported using a differential reporting criterion. For example, the RSRP of the best (optimal) available resource (the RSRP field in Table 1) is reported using 7 bits, while other RSRP fields (the differential RSRP field in Table 1) are reported using 4 bits.

[0101] Table 1

[0102] The above information may be carried on a physical uplink control channel (physical uplink control channel) or a physical uplink shared channel (physical uplink shared channel).

[0103] 2) Uplink beam management

[0104] Uplink beam management mainly includes the following steps:

[0105] S1. The network device sends SRS configuration information to the terminal device. The network device can configure one or more SRS resource sets (SRS-ResourceSet) for uplink beam management for the terminal device. Each SRS resource set includes one or more SRS resources (SRS-Resource). Each SRS resource is associated with a beam. Each SRS resource includes an SRS signal. Uplink beam measurement can be performed by measuring the SRS signals corresponding to these SRS resources. The specific format of SRS resource configuration can be referred to the known protocol and will not be described in detail here.

[0106] S2. The terminal device transmits the corresponding SRS signal using the uplink transmission beam associated with the SRS resource in accordance with the configuration of each SRS resource.

[0107] S3. The network device measures each SRS signal sent by the terminal device, and measures the quality of each SRS resource.

[0108] The beam management process indicates that specific beams can be used for communication between network devices and terminal devices. The specific beam to be used is determined through beam measurement. For example, the network device can transmit reference signals via various beams, with each beam corresponding to a reference signal. Based on the measurement of these reference signals, the terminal device determines a beam with better quality and sends information about the resources corresponding to one or more beams with better quality to the network device, allowing the network device to determine which transmit beam to use for downlink data transmission.

[0109] For example, as shown in FIG2 , FIG2 is a schematic diagram of beam management provided in an embodiment of the present application.

[0110] FIG2 includes M resources, namely resource 1 to resource M. Each transmit beam corresponds to a resource and is used to transmit a reference signal corresponding to the resource. The network device transmits the reference signals corresponding to the M resources through M transmit beams. The transmission of the above-mentioned reference signals is performed periodically. In each measurement period, the network device uses M transmit beams to transmit the reference signals corresponding to the M resources respectively, and the terminal device uses a fixed receive beam to receive these reference signals, thereby measuring the channel quality between the M network device transmit beams and the terminal device receive beam. In different measurement periods, the terminal device uses different receive beams to measure the M resources, and measures the channel quality between each network device transmit beam and each terminal device receive beam through multiple measurement periods. After determining the channel quality between each network device transmit beam and each terminal device receive beam, the terminal device can determine the available N (N is a positive integer, and the value of N is configured by RRC signaling) network device transmit beams, for example, the N network device transmit beams with the best quality, and the available receive beam corresponding to each of the N transmit beams. The terminal device needs to report the index of the resources corresponding to the N transmit beams to the network device and store the available receive beams corresponding to the N transmit beams. When the network device uses any one of the N transmit beams (such as the one with the best quality) for downlink data transmission, the terminal device uses the available receive beam corresponding to the transmit beam for reception. The available beam can be the beam with the best quality.

[0111] However, in the beam management shown in Figure 2, the terminal needs to complete multiple measurement cycles to determine the channel quality between each transmit beam of the network device and each receive beam of the terminal device, which takes a long time. If the optimal transmit beam and its corresponding optimal receive beam change (for example, when the terminal device moves), it may take a long time to identify the new optimal transmit beam and corresponding receive beam, resulting in performance loss in data transmission.

[0112] For example, as shown in FIG3 , FIG3 is another beam management schematic diagram provided in an embodiment of the present application.

[0113] In Figure 3, the terminal device sequentially traverses each receive beam in the order of receive beam 1, receive beam 2, ..., receive beam 8 to measure multiple transmit beams. That is, a fixed receive beam is used to measure multiple transmit beams in each measurement cycle. For example, in measurement cycle 2, the terminal device uses receive beam 2 to measure multiple transmit beams. If the network device's available transmit beams, such as the optimal transmit beam, change at this time, that is, the optimal transmit beam becomes another transmit beam (a new optimal transmit beam), the optimal receive beam corresponding to this new optimal transmit beam is receive beam 1. The terminal device needs to use receive beam 1 for measurement to discover this new optimal transmit beam. However, according to the above receive beam traversal order, it will take another seven measurement cycles (measurement cycle 3, measurement cycle 4, ..., measurement cycle 8, and new measurement cycle 1) before the terminal device can use receive beam 1 for beam measurement in the new measurement cycle 1 to find the new optimal transmit beam. This will result in a high latency (for example, if the measurement cycle value is 20 milliseconds, it will result in a latency of hundreds of milliseconds).

[0114] That is to say, when the available transmit beams and their corresponding available receive beams change, for example, when the optimal transmit beam and its corresponding optimal receive beam change (such as when the terminal device moves), it may take a long time to identify the new optimal transmit beam and the corresponding receive beam, resulting in excessive delay.

[0115] To address the above issues, the present application provides a beam measurement and indication method that reduces beam measurement latency by measuring the channel quality of a beam based on received information about at least one first resource. The at least one first resource may be an available resource, such as a portion of resources with superior channel quality.

[0116] Before introducing the method provided in the embodiments of the present application, the following points are explained.

[0117] First, to clearly describe the technical solutions of the embodiments of this application, terms such as "first" and "second" are used in the embodiments of this application to distinguish between identical or similar items with substantially identical functions and effects. For example, the first beam indication mode and the second beam indication mode are used solely to distinguish between different beam indication modes and do not limit their order. Those skilled in the art will understand that terms such as "first" and "second" do not limit the quantity or execution order, and do not necessarily indicate that the terms are different.

[0118] Second, in the embodiments described herein, various terms and abbreviations, such as Channel State Information Reference Signal (CSI-RS), Sounding Reference Signal (SRS), Synchronization Signal Block (SSB), and Transmission Configuration Indicator (TCI), are provided for ease of description and should not limit this application in any way. This application does not exclude the possibility of defining other terms in existing or future protocols that can achieve the same or similar functions.

[0119] Third, the "protocol" involved in the embodiments of the present application may refer to a standard protocol in the field of communications, for example, it may include a long term evolution (LTE) protocol, a new wireless / new air interface (NR) protocol, and related protocols used in future communication systems. This application does not limit this.

[0120] Fourth, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b and c can mean: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c, where a, b, c can be single or multiple.

[0121] Fifth, the correspondences shown in the tables of this application can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values, which are not limited by this application. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences illustrated in each table. For example, in the tables of this application, the correspondences shown in certain rows may not be configured. For another example, appropriate modifications and adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also use other names that can be understood by the communication device, and the values ​​or representations of the parameters may also use other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures may also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables.

[0122] In addition, in the present application, beam information can be used to indicate a beam, time slot information can be used to indicate a time slot, and period information can be used to indicate a period.

[0123] To facilitate understanding of the beam measurement method provided in the embodiments of the present application, the system architecture of the beam measurement method provided in the embodiments of the present application is described below. It is understood that the system architecture described in the embodiments of the present application is intended to more clearly illustrate the technical solution of the embodiments of the present application and does not constitute a limitation on the technical solution provided in the embodiments of the present application.

[0124] FIG4 is a schematic diagram of the system architecture of the communication system provided in an embodiment of the present application.

[0125] As shown in a) in Figure 4, the communication system includes one or more network devices (one network device is taken as an example in the figure) and one or more terminal devices (two terminal devices are taken as an example in the figure). It can be seen that a network device can transmit data or control signaling to one or more terminal devices.

[0126] As shown in b) in Figure 4, the communication system includes one or more network devices (three network devices are taken as an example in the figure) and one or more terminal devices (one terminal device is taken as an example in the figure). It can be seen that multiple network devices can transmit data or control signaling to one terminal device.

[0127] In the communication system shown in FIG4 a) and FIG4 b), the terminal device can be mobile or fixed. The network device can be a micro base station, or a TRP or other type of network device, which is not limited in the embodiments of the present application. The network device can provide communication coverage for a specific geographical area and can communicate with the terminal device located in the coverage area (cell) through a wireless link.

[0128] Optionally, the communication system shown in the communication system may include more network devices, and the coverage area of ​​each network device may include other numbers of terminal devices, which is not limited in the embodiments of the present application.

[0129] FIG5 is a schematic diagram of communication performed by a communication device provided in an embodiment of the present application.

[0130] As shown in FIG5 , terminal device 10 logically includes multiple components, such as a processor 101, a memory 102, and a transceiver 103. Transceiver 103 includes a transmitter 1031, a receiver 1032, and an antenna 1033. Network device 20 logically includes multiple components, such as a processor 201, a memory 202, and a transceiver 203. Transceiver 203 includes a transmitter 2031, a receiver 2032, and an antenna 2033. Receiver 1032 can be used to receive information transmitted by network device 20 via antenna 1033, and transmitter 1031 can be used to transmit information to network device 20 via antenna 1033. Transmitter 2031 can be used to transmit information to terminal device 10 via antenna 2033, and receiver 2032 can be used to receive information transmitted by terminal device 10 via antenna 2033.

[0131] The beam measurement method provided in this application will be described in detail below with reference to FIG6 .

[0132] Figure 6 is a schematic flow chart of a beam measurement method provided in an embodiment of the present application. The method shown in Figure 6 includes steps 510 and 520, and each step will be described in detail below.

[0133] Step 510: The network device sends first indication information, where the first indication information includes information about at least one first resource.

[0134] Correspondingly, the terminal device receives the first indication information.

[0135] The first indication information is used to configure relevant parameters for beam measurement. For example, the relevant parameters may include one or more of the following: one or more reporting configurations, one or more resource configurations, and one or more resource sets. Each reporting configuration may be associated with one or more resource configurations, each resource configuration may include one or more resource sets, and each resource set may include one or more resources.

[0136] To detect the channel quality of a group of transmit beams, the network device needs to indicate a group of resources to the terminal device. The resources in this group of resources can be resources that meet the channel quality requirements, suitable resources, or available resources. For example, the resources in this group of resources can be a subset of resources with relatively good or optimal channel quality. For ease of distinction, the resources in this group of resources are hereinafter referred to as first resources. In other words, the first resources can be relatively good or optimal resources.

[0137] The first indication information may include information about at least one first resource. Alternatively, the first indication information may include indication information indicating information about at least one first resource. Alternatively, the first indication information may indicate information about at least one first resource. Alternatively, the first indication information may be used to indicate information about at least one first resource, which is not limited in this embodiment of the present application.

[0138] To determine resources with better channel quality, refer to the above-described downlink beam management steps. For example, in step S4, the terminal device sends a beam measurement report to the network device, and the network device can obtain the channel quality of each resource. The network device can then determine a portion of resources with better channel quality. In this embodiment of the present application, the portion of resources with better channel quality is referred to as the first resource.

[0139] Step 520: The terminal device performs measurement based on information of at least one first resource.

[0140] The network device sends a reference signal to the terminal device according to the reference signal resources configured for the terminal device. Specifically, the network device may send a reference signal corresponding to a group of first resources configured for the terminal device to the terminal device.

[0141] That is to say, before performing measurement based on the information of at least one first resource, a reference signal sent by a network device can be received first. The reference signal may include a channel state information reference signal (CSI-RS), a cell specific reference signal (CS-RS), a UE specific reference signal (US-RS), a demodulation reference signal (DMRS), and one or more of a synchronization system / physical broadcast channel block (SS / PBCH block). It can be understood that when performing measurement based on the information of at least one first resource, the reference signal sent by the network device can be measured based on the at least one first resource, and the result obtained by measuring the reference signal is the channel quality corresponding to the first resource (i.e., the channel quality of the first resource), or the channel quality corresponding to the beam (i.e., the channel quality of the beam). The beam is the beam corresponding to the first resource. In the above technical solution, the at least one first resource can be a resource that meets the channel quality requirements or a suitable resource. Therefore, it can be understood that beam measurement can also be called reference signal measurement.

[0142] The terminal device can measure the channel quality of the beam corresponding to the first resource based on the information of the first resource. It can be understood that the channel quality of the beam can be referred to as the channel quality corresponding to the beam, the channel quality of the first resource (corresponding to the beam), the channel quality corresponding to the first resource (corresponding to the beam), etc. The above statements represent the same concept and are not repeated below.

[0143] The terminal device uses the first resource to perform a first measurement reporting process. The first measurement reporting process may be a process in which the terminal device measures the channel quality of the beam corresponding to the first resource based on information about the first resource. The first measurement reporting process includes one or more of the following features:

[0144] The terminal device monitors changes in the quality of beams corresponding to a group of resources (i.e., at least one first resource), such as changes in the quality relationship between the beams, by measuring the group of resources (i.e., at least one first resource).

[0145] For each first resource, the terminal device does not traverse the receiving beam, but always adopts the receiving beam indicated by the network device for each resource.

[0146] That is, based on the downlink beam management process, the network device can obtain the available receive beams corresponding to each transmit beam, for example, the optimal receive beam. The receive beam indicated by the network device for each resource can be the optimal receive beam corresponding to each resource. In this embodiment of the present application, for each transmit beam corresponding to the first resource, the terminal device can use its respective optimal receive beam for reception.

[0147] The measurement result reporting is performed conditionally, that is, the measurement result is reported only when specific conditions are met.

[0148] For the reporting of the measurement results and the specific conditions that need to be met when reporting the measurement results, please refer to the description in step 530.

[0149] The first indication information may be indicated in any one of the following three ways: way 1, way 2 or way 3.

[0150] Method 1: The first indication information may be RRC signaling. In other words, the first indication information may be carried on RRC signaling, or in other words, the first indication information may be sent via RRC signaling. The RRC signaling may be sent by the O-CU-CP.

[0151] That is to say, the RRC signaling sent by the network device to the terminal device may include information about at least one first resource.

[0152] Exemplarily, the network device configures information about at least one first resource for the terminal device through RRC signaling, and the resources included in the resource set are the at least one first resource mentioned above. RRC signaling also needs to indicate specific information about each first resource, such as beam information, time-frequency resource mapping information, power information, scrambling index information, period information, and time slot information. The information about the at least one first resource can be included in a resource set. The resource set can be a resource configuration (resourceSetting), a resource set (resourceSet), or a subset within a resourceSet.

[0153] In one example, if the information about the first resource configured by the network device for the terminal device through RRC signaling includes information about resource a, resource b, and resource c, and resource set A includes resource a, resource b, and resource c, then the RRC signaling may include or indicate the index of resource a, the index of resource b, and the index of resource c. Alternatively, the RRC signaling may include or indicate the index of resource set A.

[0154] Method 2: The first indication information may be RRC signaling and MAC-CE signaling. In other words, the first indication information may be carried on RRC signaling and MAC-CE signaling, or in other words, the first indication information may be sent via RRC signaling and MAC-CE signaling. The MAC-CE signaling may be sent by the O-DU.

[0155] That is to say, the MAC-CE signaling and RRC signaling sent by the network device to the terminal device may include information about at least one first resource.

[0156] Exemplarily, the network device configures a resource set for the terminal device through RRC signaling, and the resource set includes at least one resource. RRC signaling also needs to indicate specific parameters of each resource, such as beam information, time-frequency resource mapping information, power information, scrambling index information, period information and time slot information. The resource set can be a resource configuration (resourceSetting), a resource set (resourceSet) or a subset within a resourceSet. The network device indicates at least one resource from the resource set configured by RRC signaling as the above-mentioned at least one first resource through MAC-CE signaling. The MAC-CE may include or indicate one or more of the following: an index of at least one first resource, an index of a resource set to which at least one first resource belongs. The index of the resource may be a global resource index, that is, an index of a resource in all configured resources. Alternatively, the index of the resource may also be a local resource index, that is, an index of a resource in the (corresponding) resource set to which it belongs. This embodiment of the present application is not limited to this. For example, MAC-CE may indicate a set of resource indexes, each resource index being used to determine a first resource.

[0157] In one example, if the first resources include resource a, resource b, and resource c, the resource set configured by the network device for the terminal through RRC signaling is resource set A {resource set B {resource a, resource b, resource c}, resource set C {resource d, resource e, resource f}}, and the network device indicates the index of resource set B through MAC-CE signaling, indicating that at least one first resource belongs to resource set B. Alternatively, the network device indicates the index of resource a, the index of resource b, and the index of resource c through MAC-CE signaling.

[0158] In another example, if the first resources include resource a and resource b, the resource set configured by the network device for the terminal through RRC signaling is resource set A {resource set B {resource a, resource b, resource c}, resource set C {resource d, resource e, resource f}}, and the network device indicates the index of resource set B through MAC-CE signaling, indicating that at least one first resource belongs to resource set B. Alternatively, the network device indicates the index of resource a and the index of resource b through MAC-CE signaling. It can be seen that resource set B may contain resources that are not first resources.

[0159] In another example, if the first resource includes resource a, resource b, resource c, and resource d. The resource set configured by the network device for the terminal through RRC signaling is resource set A {resource set B {resource a, resource b, resource c}, resource set C {resource d, resource e, resource f}}, and the network device indicates the index of resource set A (or the index of resource set B and the index of resource set C) through MAC-CE signaling, indicating that at least one first resource belongs to resource set A (or resource set B and resource set C). Alternatively, the network device indicates the index of resource a, the index of resource b, the index of resource c, and the index of resource d through MAC-CE signaling. It can be seen that at least one first resource may not belong to the same resource set. MAC-CE signaling may include or indicate the indexes of multiple resource sets.

[0160] Method 3: The first indication information may be MAC-CE signaling. In other words, the first indication information may be carried on MAC-CE signaling. In other words, the first indication information may be sent via MAC-CE signaling.

[0161] That is to say, the MAC-CE signaling sent by the network device to the terminal device may include information about at least one first resource.

[0162] Exemplarily, the information of the at least one first resource included or indicated by the MAC-CE signaling may include one or more of the following: an index of a resource set to which the at least one first resource belongs, and the quantity of the at least one first resource.

[0163] The index of the resource set to which the at least one first resource belongs is used to indicate the resource set to which the at least one first resource indicated by the MAC-CE signaling belongs. The number of the at least one first resource is used to indicate the number of the at least one first resource indicated by the MAC-CE signaling.

[0164] The resource set to which the first resource belongs may be configured first via RRC signaling. When the resource set is configured via RRC signaling, the RRC signaling may not configure the first resource for the resource set. That is, in the RRC configuration, the resource set configuration does not include the first resource, and the first indication information is subsequently used to indicate a specific first resource for the resource set. Alternatively, RRC signaling may configure the first resource for the resource set, and the first indication information may subsequently be used to update the first resource in the resource set.

[0165] If the RRC signaling configures the first resource, the number of at least one first resource indicated in the MAC-CE can be determined based on the number of first resources configured by the RRC (the two are equal). In this case, the number of at least one first resource may not be indicated in the MAC-CE.

[0166] In one example, resource set A is configured via RRC signaling, but is an empty set, meaning that resource set A contains no resources. Resource a, resource b, and resource c are configured for resource set A via MAC-CE signaling. In other words, resource a, resource b, and resource c are first resources. Furthermore, information about the first resources in resource set A can be updated via MAC-CE signaling.

[0167] In another example, before receiving the first indication information, the terminal device may further include the step of receiving information about resources in a resource set configured by RRC signaling. The resources in the resource set configured by the RRC signaling may include at least one first resource, that is, the resource set is configured by RRC signaling, and the RRC signaling configures at least one first resource for the resource set. The information about the at least one first resource can then be updated by MAC-CE signaling. That is, the information about the at least one first resource included in the first indication information is used to update the information about the resources in the resource set configured by RRC signaling. Furthermore, in order for MAC-CE to determine the resource set that needs to be updated, the information about the resource set may be included in the first indication information. For example, the index of the resource set, the index of the first resource in the resource set, one or more items of information about the first resource in the resource set, etc. That is, the information about the resource set is included in the first indication information. In this case, since the RRC signaling has already configured at least one first resource, the number of first resources included in the first indication information can be determined based on the number of first resources configured in the RRC signaling, so that the number of the at least one first resource may not be included in the first indication information. In other words, the first indication information is used to indicate information about the resource set. In other words, the first indication information includes information used to indicate the resource set. In other words, the first indication information indicates information about the resource set. In other words, the first indication information includes information indicating the resource set. This embodiment of the present application is not limited to this.

[0168] Exemplarily, the resource set configured by RRC signaling is resource set A {resource a, resource b, resource c}. That is, resource a, resource b, and resource c are first resources. The first indication information may include the index of resource set A (or the index of resource a, the index of resource b, and the index of resource c), as well as information about resource a, resource b, and resource c, to update the information about resource a, resource b, and resource c.

[0169] In one possible implementation, for the at least one first resource included in the first indication information, the first indication information may include specific information of the at least one first resource. In other words, the first indication information may include specific information for indicating the at least one first resource. In other words, the first indication information may indicate specific information of the at least one first resource. In other words, the first indication information may be used to indicate specific information of the at least one first resource. The embodiments of the present application are not limited to this. For example, the specific information of the at least one first resource may be one or more of the resource index of the at least one first resource, the beam information of the at least one first resource, the time-frequency resource mapping information of the at least one first resource, the power information of the at least one first resource, the scrambling index information of the at least one first resource, the periodic information of the at least one first resource, the power information of the at least one first resource, the resource configuration information corresponding to the at least one first resource, the reporting configuration information corresponding to the at least one first resource, the scrambling index information corresponding to the at least one first resource, and the time slot information corresponding to the at least one first resource.

[0170] The resource index is used to represent the index of the first resource. The resource index can be a global index, that is, the index of the first resource in all configured resources. The resource index can also be a local index, that is, the local index of the first resource in the resource set in which it is located.

[0171] The beam information is used to indicate the beam used by the at least one first resource. For example, the beam information may be a TCI-state.

[0172] The time-frequency resource mapping information is used to indicate the time-frequency resources occupied when sending the reference signal corresponding to the at least one resource.

[0173] The power information is used to determine the transmit power of the reference signal corresponding to the at least one first resource.

[0174] The scrambling index information is used to indicate a scrambling index used by the at least one first resource.

[0175] The period information is used to determine a sending period of the at least one first resource.

[0176] The time slot information is used to determine the sending time slot of the at least one first resource.

[0177] The resource configuration information is used to indicate the resource configuration to which the at least one first resource belongs.

[0178] The reporting configuration information is used to indicate the reporting configuration associated with the at least one first resource.

[0179] In a possible implementation, the first indication information may include beam information, time-frequency resource mapping information, power information, period information, time slot information, etc. of each first resource.

[0180] In one possible implementation, the information of each first resource may be different. For example, resource a, resource b, and resource c are first resources, and the information used by resource a, resource b, and resource c includes beam information, time-frequency resource mapping information, power information, period information, and time slot information. The beam information used by resource a, the beam information used by resource b, and the beam information used by resource c may be different. Similarly, the time-frequency resource mapping information, power information, period information, and time slot information used by resource a, resource b, and resource c may also be different. The information of each first resource can be indicated separately in the first indication information.

[0181] In a possible implementation, the types of information used by resource a, resource b, and resource c may not be completely the same.

[0182] For example, resource a, resource b, and resource c are first resources. The information used by resource a includes beam information and time-frequency resource mapping information. The information used by resource b includes beam information, period information, and time slot information. The information used by resource c includes beam information, power information, and period information. The information of each first resource can be indicated separately in the first indication information.

[0183] In one possible implementation, at least one first resource uses the same first information, and the first information includes at least one of the following: beam information, time-frequency resource mapping information, power information, scrambling index information, period information and time slot information.

[0184] At least one first resource can share certain information, such as beam information, power information, scrambling index information, period information, time slot information, etc. In this way, MAC-CE only needs to indicate one piece of information for the group of first resources, thereby reducing the overhead of MAC-CE. That is, at least one first resource uses the same first information. For example, MAC-CE indicates a piece of power information, and the above-mentioned group of first resources all use the power information. For another example, MAC-CE indicates a piece of period information, and the above-mentioned group of first resources all use the period information. For another example, MAC-CE indicates a piece of scrambling index information, and the above-mentioned group of first resources all use the scrambling index. That is to say, when the first information used by at least one first resource is the same, the first information may not be repeatedly included in the first indication information. Instead, at least one first resource shares the first information.

[0185] In one example, if the first resource includes resource a, resource b, and resource c. The first information includes beam information, time-frequency resource mapping information, power information, scrambling index information, period information, and time slot information. That is, at least one first resource uses the same beam information, time-frequency resource mapping information, power information, scrambling index information, period information, and time slot information. Then the first indication information may only include one beam information, one time-frequency resource mapping information, one power information, one scrambling index information, one period information, and one time slot information. It can be known that the beam information, time-frequency resource mapping information, power information, scrambling index information, period information, and time slot information used by resource a, resource b, and resource c are all the same.

[0186] In another example, if the first resource includes resource a, resource b and resource c. The first information includes beam information, time-frequency resource mapping information, power information, scrambling index information, and period information. That is, at least one first resource uses the same beam information, time-frequency resource mapping information, power information, scrambling index information and period information. Then the first indication information may only include one beam information, one time-frequency resource mapping information, one power information, one scrambling index information and one period information. It can be known that the beam information, time-frequency resource mapping information, power information, scrambling index information and period information used by resource a, resource b and resource c are all the same. In addition, the information of the first resource included in the first indication information may also include time slot information. Different first resources may use different time slot information, which may be included in the first indication information respectively.

[0187] In one possible implementation, a first resource can share partial information about other resources, eliminating the need to indicate this information and reducing MAC-CE overhead. In other words, this information may not be included in the first indication information. Specifically, an association relationship can be established between a first resource and another resource. For ease of description, resources associated with a first resource are referred to as second resources. Each first resource can use partial information from its associated second resource, eliminating the need for a MAC-CE to indicate this information.

[0188] In one possible implementation, the first indication information includes information about at least one second resource, and the at least one first resource and the at least one second resource are associated one-to-one; the information about the at least one second resource includes an index of a resource set corresponding to the at least one second resource and / or an index of the at least one second resource. After receiving the first indication information, the terminal device can determine the at least one second resource based on the index of the at least one second resource set and / or the index of the at least one second resource included in the first indication information, thereby obtaining information about the at least one second resource.

[0189] It is understandable that since the information about the second resource can be obtained, the second information about the second resource included in the information about the second resource can also be obtained. In one possible implementation, each first resource adopts the second information about the second resource associated with each first resource. The second information includes one or more of the following: beam information, time-frequency resource mapping information, power information, scrambling index information, period information, and time slot information. Each first resource adopts the second information about the second resource associated with each first resource, that is, the second information about the second resource associated with each first resource is used as the second information of each first resource, that is, the second information of the first resource is the same as the second information of the second resource associated with each first resource. For example, the first resource can adopt the beam information of the second resource. For example, the first resource can adopt the time-frequency resource mapping information of the second resource. For example, the first resource can adopt the power information of the second resource. For example, the first resource can adopt the scrambling index information of the second resource. For example, the first resource can adopt the period information of the second resource. For example, the first resource can adopt the time slot information of the second resource.

[0190] For a first resource, MAC-CE needs to indicate the information of the second resource associated with it, so that the terminal device knows which second resource the first resource is associated with. For example, in one possible implementation, the first indication information (for example, MAC-CE signaling) includes information of at least one second resource. At least one first resource is associated one-to-one with at least one second resource. The information of at least one second resource includes an index of a resource set corresponding to at least one second resource and / or an index of at least one second resource (resource index). In other words, the first indication information may include information indicating at least one second resource. In other words, the first indication information may include indication information for indicating information of at least one second resource. In other words, the first indication information may indicate information of at least one second resource. In other words, the first indication information may be used to indicate information of at least one second resource, and the embodiments of the present application are not limited to this.

[0191] The index of the second resource may be a global index of the second resource in all configured resources. The index of the second resource may also be a local index of the second resource in the resource set in which it is located. The first indication information may indicate the indexes of multiple second resources, and the first resource corresponding to each second resource is determined according to the order of the multiple second resources in the first indication information. For example, the first second resource is associated with the first first resource in the above group of first resources, the second second resource is associated with the second first resource in the above group of first resources, and so on.

[0192] In one example, the first indication information may include information about M first resources and information about M second resources, and the M first resources are associated one-to-one with the M second resources. For example, the first resource w is associated with the second resource W, and the first resource u is associated with the second resource U. The association between the first resource and the second resource can be achieved by associating the index of the first resource (or the index of the resource set where the first resource is located) and the index of the second resource (or the index of the resource set where the second resource is located). In this example, the information used by each first resource is the second information of the second resource associated with it. That is, the first resource w uses the second information of the second resource W. The first resource u uses the second information of the second resource U.

[0193] In another example, the first indication information may include information about M first resources and information about N second resources. One or more of the M first resources are associated with one second resource. For example, first resource w is associated with second resource W, and first resource u is also associated with second resource W. First resource x is associated with second resource X. In this example, the information used by each first resource is the second information of the second resource associated with it. The second information used by multiple first resources associated with the same second resource is the same. In other words, first resource w and first resource u both use the second information of second resource W. First resource x uses the second information of second resource X.

[0194] In another example, the first indication information may include information about M first resources and one second resource. The M first resources are all associated with the one second resource. For example, the first resources include resource a, resource b, and resource c. The second resource includes resource A. Then, resource a is associated with resource A. Resource b is associated with resource A. Resource c is associated with resource A. In this example, the M first resources all use the second information of the second resource associated with the M first resources. In other words, resource a, resource b, and resource c all use the second information of resource A.

[0195] In one possible implementation, information not included in the second information may be included in the first indication information. Exemplarily, the second information includes beam information and time-frequency resource mapping information. Then the first indication information may include the index of the second resource or the index of the resource set where the second resource is located, but does not include beam information and video resource mapping information. The first indication information may also include one or more of the power information, scrambling index information, period information and time slot information of the first resource. That is, the beam information and time-frequency resource mapping information of the first resource are obtained through the beam information and time-frequency resource mapping information of the second resource associated therewith. However, one or more of the power information, scrambling index information, period information and time slot information of the first resource are not obtained through one or more of the power information, scrambling index information, period information and time slot information of the second resource.

[0196] In one possible implementation, part of the first resource may be associated with the second resource. Information about the part of the first resource associated with the second resource may be obtained through the second resource. Information about the first resource not associated with the second resource may be included in the first indication information.

[0197] In a possible implementation, the second information of each first resource is determined based on the second information of the second resource associated with each first resource.

[0198] For example, the power information of each first resource can be determined based on the power information of the second resource associated with each first resource. The scrambling index information of each first resource can be determined based on the scrambling index information of the second resource associated with each first resource. The period information of each first resource can be determined based on the period information of the second resource associated with each first resource. The beam information of each first resource can be determined based on the beam information of the second resource associated with each first resource. The time-frequency resource mapping information of each first resource can be determined based on the time-frequency resource mapping information of the second resource associated with each first resource. The time slot information of each first resource can be determined based on the time slot information of the second resource associated with each first resource. The following example is taken where the second information of the first resource includes the time slot information of the first resource. It can be understood that the following description of the time slot information applied to the first resource can also be applied to other second information of the first resource and should not constitute any limitation to this application.

[0199] That is to say, the time slot information of at least one first resource may not be directly obtained by using the time slot information of the second resource associated with the at least one first resource, but may be obtained through the time slot information of the second resource associated with the at least one first resource and other information, and the other information may be included in the first indication information.

[0200] For a first resource, the time slot information of the first resource may be determined through its associated second resource and the time slot offset information (eg, time slot offset) indicated by the first indication information.

[0201] In one possible implementation, the first indication information also includes a second information offset, and the second information of each first resource is determined based on the second information of the second resource associated with each first resource and the second information offset. In other words, the first indication information indicates the second information offset. In other words, the first indication information can be used to indicate the second information offset. The first indication information can indicate a common second information offset, and all first resources adopt the second information offset. Alternatively, the first indication information indicates a second information offset for each first resource, and each first resource adopts its own corresponding second information offset. The second information offset may refer to a beam offset, a time-frequency resource offset, a power offset, a scrambling index offset, a cycle offset, a time slot offset, etc. This embodiment of the present application is not limited to this. In a possible implementation, the second information offset may also be reported by the terminal device, or pre-set by the protocol (specified by the protocol), or configured by the network device. This embodiment of the present application is not limited to this.

[0202] For example, the first indication information includes a power offset, and the power information of each first resource is determined based on the power information and power offset of the second resource associated with each first resource. For example, the first indication information includes a scrambling index offset, and the scrambling index information of each first resource is determined based on the scrambling index information and scrambling index offset of the second resource associated with each first resource. For example, the first indication information includes a period offset, and the period information of each first resource is determined based on the period information and period offset of the second resource associated with each first resource. For example, the first indication information includes a beam offset, and the beam information of each first resource is determined based on the beam information and beam offset of the second resource associated with each first resource. For example, the first indication information includes a time-frequency resource offset, and the time-frequency resource mapping information of each first resource is determined based on the time-frequency resource mapping information and time-frequency resource offset of the second resource associated with each first resource. For example, the first indication information includes a slot offset, and the slot information of each first resource is determined based on the slot information and slot offset of the second resource associated with each first resource. The following example uses the case where the second information includes the time slot information of the first resource, the second information includes the time slot information of the second resource, and the second information offset includes the time slot offset. It is understood that the following description of the time slot information of the first resource can also be applied to other second information of the first resource and should not constitute any limitation to this application.

[0203] Exemplarily, for each first resource, the first indication information indicates a time slot offset. The time slot information for each first resource may be the sum of the time slot information of the second resource associated with it and the corresponding time slot offset. Alternatively, the time slot information for a first resource may be the difference between the time slot information of the second resource associated with it and the corresponding time slot offset. The time slot offsets corresponding to multiple first resources may be the same or different. This can be determined by including one or more time slot offsets in the first indication information. For example, when the first indication information includes a time slot offset, it indicates that the time slot offsets corresponding to the multiple first resources are the same. In other words, the time slot offsets involved in obtaining the time slot information for multiple first resources are the same. When the first indication information includes multiple time slot offsets, it indicates that the time slot offsets corresponding to the multiple first resources are not exactly the same. In other words, the time slot offsets involved in obtaining the time slot information for multiple first resources may not be the same. For example, for each first resource, the first indication information may include a corresponding time slot offset. The time slot offsets of the first resources are arranged in the first indication information according to the order of at least one first resource in the first indication information. That is, the time slot offset information corresponding to the first first resource is ranked first, the time slot offset information corresponding to the second first resource is ranked second, and so on.

[0204] After the terminal device is configured with a set of measurement reporting configurations (first indication information), it is necessary to determine whether the measurement reporting configuration is used for the above-mentioned first measurement reporting process, so that the terminal device will report according to the measurement method and reporting method of the first measurement reporting process.

[0205] Specifically, the first measurement reporting process may be indicated by the following method 1, method 2, or method 3.

[0206] Method 1: Display the configuration through a parameter. The parameter can be configured in the reporting configuration to indicate that the measurement reporting process corresponding to the reporting configuration is the first measurement reporting process. For example, if the reporting conditions are configured in the reporting configuration, the above-mentioned first measurement reporting process is adopted. The parameter can be configured in the resource configuration or resource set to indicate that the measurement reporting process corresponding to the resource configuration or resource set is the first measurement reporting flow. For example, a parameter is configured in the resource set to indicate that the terminal device always uses the receiving beam configured by the network device for each resource. It can be understood that the reporting configuration or resource configuration or resource set can be included in the first indication information.

[0207] Method 2: Perform the first measurement reporting process by configuring a dedicated reporting configuration or resource configuration or resource set. As long as the terminal device is configured with the dedicated reporting configuration or resource configuration or resource set, the terminal device can determine to perform the first measurement reporting process based on the dedicated reporting configuration or resource configuration or resource set. It is understandable that the configured dedicated reporting configuration or resource configuration or resource set can be included in the first indication information.

[0208] Method three: When the terminal device receives first indication information including at least one first resource, the terminal device can determine to use the at least one first resource included in the first indication information for the first measurement reporting process.

[0209] Optionally, after step 520 , step 530 may be further included.

[0210] In step 530, if the first condition is met, the terminal device sends a first reporting message to the network device. The first reporting message includes information about a fourth resource, where the fourth resource is at least one first resource having a channel quality that is better than the channel quality corresponding to the third resource. Alternatively, the first reporting message includes information about at least one first resource.

[0211] Correspondingly, the network device receives the first reporting information.

[0212] It is understandable that the terminal device measures the above-mentioned set of first resources, thereby promptly detecting changes in available beams, for example, when the optimal beam changes, and reporting this change to the network device. In order to determine the change in the optimal beam, the terminal device needs to know which is the current optimal beam. This application refers to the first resource corresponding to the current optimal beam as the third resource. The third resource can also be regarded as a reference resource. The terminal device can compare the channel quality of the third resource with other first resources to determine whether the optimal beam has changed.

[0213] That is, the third resource is the resource corresponding to the available beam in the first resource sent by the network device to the terminal device, for example, the resource corresponding to the beam with the best channel quality. The transceiver beam corresponding to the third resource can be used for data transmission. In other words, the third resource is the beam with the best channel quality before the terminal device measures the channel quality of the beams corresponding to each first resource in step 520. It is known that the channel quality of the beam may change. The fourth beam is the resource in the first resource whose channel quality is better than the channel quality of the third resource after the terminal device measures the channel quality of the beams corresponding to each first resource in step 520.

[0214] In one possible implementation, the information of the third resource can be configured through RRC signaling or MAC-CE signaling. Alternatively, the information of the third resource is included in the first indication information. Alternatively, the third resource is the nth first resource among at least one first resource, where n is a positive integer. The value of n can be configured by the network device, reported by the terminal device, or specified by the protocol, for example, n=1. This application does not limit this. The information of the third resource may include the index of the third resource. The information of the third resource is included in the first indication information, that is, the first indication information includes the information of the third resource, or the first indication information indicates the information of the third resource. This embodiment of the application does not limit this.

[0215] That is, the information of the third resource can be configured through RRC signaling or MAC-CE signaling.

[0216] Alternatively, the information of the third resource is included in the first indication information. For example, the index of the third resource is indicated to the terminal device in the first indication information, so that the terminal device can determine the third resource according to the index of the third resource.

[0217] Alternatively, the third resource is the nth first resource among at least one first resource. After the terminal device receives the first indication information, it can obtain at least one first resource. Thus, the terminal device can determine that the third resource is the nth first resource among at least one first resource based on the obtained at least one first resource and the value of n. For example, if n is 1, the first first resource among at least one first resource included in the first indication information is the third resource. After the terminal device receives at least one first resource, it can determine that the third resource is the first first resource among the at least one first resource. It can be understood that the value of n being 1 is an example and should not constitute any limitation to the embodiments of the present application.

[0218] The first condition may include one or more of the following conditions.

[0219] Condition 1: The channel quality corresponding to the third resource is lower than the first threshold. The value of the first threshold may be configured by the network device, reported by the terminal device, or specified by the protocol. This application does not limit this.

[0220] Condition 2: The channel quality degradation value corresponding to the third resource exceeds the second threshold. The value of the second threshold may be configured by the network device, reported by the terminal device, or specified by the protocol. This application does not limit this.

[0221] Condition 3: There are at least k first resources whose channel quality is better than the channel quality of the third resource, where k is a positive integer. The value of k may be configured by the network device, reported by the terminal device, or specified by the protocol, for example, k = 1. This application does not limit this.

[0222] To distinguish the channel quality of each first resource before and after measurement, the channel quality of the beam corresponding to each first resource before measuring the channel quality (of the beam) corresponding to each first resource in step 520 can be referred to as the original channel quality, or the original channel quality (of the beam) corresponding to the first resource. The channel quality (of the beam) corresponding to each first resource after measurement in step 520 can be referred to as the current channel quality, or the current channel quality (of the beam) corresponding to the first resource, or the new channel quality, or the new channel quality of the beam corresponding to the first resource.

[0223] Condition 1 can be understood as: the current channel quality corresponding to the third resource is lower than the first threshold. Alternatively, the current channel quality corresponding to the third resource is lower than or equal to the first threshold. In other words, the current channel quality corresponding to the third resource is less than or equal to the first threshold. The value of the first threshold can be configured by the network device, reported by the terminal device, or specified by the protocol. This application does not limit this.

[0224] Condition 2 can be understood as: the decrease in the current channel quality corresponding to the third resource compared to the original channel quality corresponding to the third resource exceeds the second threshold. Alternatively, the decrease in the current channel quality corresponding to the third resource compared to the original channel quality corresponding to the third resource exceeds or equals the second threshold.

[0225] Condition 3 can be understood as: there are at least k first resources whose current channel quality is better than the original channel quality of the third resource. Alternatively, there are at least k first resources whose current channel quality is better than or equal to the original channel quality of the third resource. Alternatively, there are at least k first resources whose current channel quality is better than the current channel quality of the third resource. Alternatively, there are at least k first resources whose current channel quality is better than or equal to the current channel quality of the third resource.

[0226] When one or more of the above three conditions are met, the terminal device may send the first reporting information to the network device, so that the network device can promptly update the information corresponding to each resource based on the received first reporting information, for example, the channel quality and beam information corresponding to at least one first resource.

[0227] Alternatively, condition 4 may also be included, that is, the ranking of the channel quality of at least one first resource changes.

[0228] For example, assume that the first resources include resource a, resource b, and resource c. The original channel quality ranking of the first resources is that the original channel quality of resource a is better than the original channel quality of resource b, and the original channel quality of resource b is better than the original channel quality of resource c. If the current channel quality ranking of the first resources is that the current channel quality of resource b is better than the current channel quality of resource c, and the current channel quality of resource c is better than the current channel quality of resource a, then the ranking of the channel quality of at least one first resource has changed.

[0229] In a possible implementation, the first reporting information sent by the terminal device to the network device may include information about at least one first resource.

[0230] Exemplarily, the first reporting information includes information on p first resources. The value of p may be configured by the network device, or may be reported by the terminal device, or may be specified by the protocol. The value of p may be equal to or less than the number of first resources in the first indication information sent by the network device to the terminal device. For example, when the value of p is 1, the first reporting information includes information on one first resource. When the value of p is the number of first resources in the first indication information, the first reporting information includes information on all first resources. The information on the first resource includes one or more of the following: an index of the p first resources or an index of the resource set to which the p first resources belong, and channel state information of the p first resources. Among them, the index of the p first resources may be a relative index in at least one first resource included in the first indication information. The channel state information may include one or more of the following: RSRP, RSRQ, SINR, channel quality indicator (CQI), PMI, RI.

[0231] In one possible implementation, the first reporting information may include channel state information for p first resources. For example, when the value of p is the number of first resources in the first indication information, the first reporting information includes channel state information for all first resources. Since the index of the first resource may not be included in this case, the format of the first reporting information may indicate the channel state information for the p first resources in the order of at least one first resource in the first indication information. The order of the at least one first resource may be the order of the at least one first resource in the first indication information.

[0232] In one possible implementation, the first reporting information may include indexes of the p first resources. Since the channel state information of the first resources may not be included in this case, the first reporting information format may be arranged in order of channel quality. For example, the order of channel quality may be from highest to lowest, or from lowest to highest. This allows the network device to determine the relationship between the channel qualities of the p first resources.

[0233] In one possible implementation, when at least one fourth resource exists in the first resource, the first reporting information may include at least one of the following: an index of the fourth resource, channel state information of the fourth resource, channel state information of the third resource, and an index of the third resource. In other words, the first reporting information indicates at least one of the following: an index of the fourth resource, channel state information of the fourth resource, channel state information of the third resource, and an index of the third resource.

[0234] It can be understood that the channel state information of the fourth resource included in the first reporting information is the current channel state information of the fourth resource, and the channel state information of the third resource included in the first reporting information is the current channel state information of the third resource.

[0235] In one example, the format of the first reported information can be an index of a third resource + Q indexes of fourth resources + channel state information of a third resource + Q channel state information of fourth resources. The value of Q can be configured by the network device, reported by the terminal device, or specified by the protocol. For example, if the value of Q is 1, the first reported information includes an index of the fourth resource and channel state information.

[0236] In this example, the channel state information of a third resource and the channel state information of Q fourth resources can be reported in a differential reporting manner. For example, when reporting the RSRP of a third resource and Q fourth resources, S bits can be used to quantify the RSRP of the third resource. For each fourth resource, T (T < S) bits are used to quantify the difference between the RSRP of the fourth resource and the RSRP of the third resource, that is, RSRP of the fourth resource - RSRP of the third resource. Through this difference and the RSRP of the third resource, the terminal device can determine the RSRP of each fourth resource. Another example is that when reporting the RSRP of a third resource and Q fourth resources, S bits can be used to quantify the RSRP of a fourth resource (such as the fourth resource with the largest RSRP). For any other fourth resource or the third resource, T (T < S) bits are used to quantify the difference between the RSRP of this fourth resource and the RSRP of any other fourth resource or the third resource. Through this difference and the RSRP of this fourth resource, the terminal device can determine the RSRP of any other fourth resource and the third resource.

[0237] If Q has a value of 1, when the terminal device reports the RSRP of a third resource and a fourth resource, S bits can be used to quantify the RSRP of the third resource. For the fourth resource, T (T < S) bits are used to quantify the difference between the RSRP of the fourth resource and the RSRP of the third resource, that is, RSRP of the fourth resource - RSRP of the third resource. Through this difference and the RSRP of the third resource, the terminal device can determine the RSRP of the fourth resource. Alternatively, if Q has a value of 1, when the terminal device reports the RSRP of a third resource and a fourth resource, S bits can be used to quantify the RSRP of the fourth resource. For the third resource, T (T < S) bits are used to quantify the difference between the RSRP of the fourth resource and the RSRP of the third resource, that is, RSRP of the fourth resource - RSRP of the third resource. Through this difference and the RSRP of the fourth resource, the terminal device can determine the RSRP of the third resource.

[0238] In another example, the format of the first reporting information can be the index of Q fourth resources + the channel state information of a third resource + the channel state information of Q fourth resources. Among them, the channel state information of a third resource and the channel state information of Q fourth resources can be reported in a differential reporting manner. The differential reporting method can be seen in the above description and will not be elaborated here.

[0239] In yet another example, the format of the first reporting information can be the index of Q fourth resources + the channel state information of Q fourth resources.

[0240] In this example, the channel state information of Q fourth resources can be reported in a differential reporting manner. For example, when Q>1, S bits can be used to quantify the RSRP of a fourth resource (such as the fourth resource with the largest RSRP). For any other fourth resource, T (T<S) bits are used to quantify the difference between the RSRP of this fourth resource and the RSRP of this any other fourth resource or this third resource. Based on this difference and the RSRP of this fourth resource, the terminal device can determine the RSRP of this any other fourth resource.

[0241] In another example, the format of the first reporting information can be the indexes of Q fourth resources.

[0242] In the above example, RSRP can also be replaced by RSRQ, SINR, CQI, etc. That is to say, the channel state information can also be RSRQ, SINR, CQI, etc. The embodiments of this application do not make any limitations in this regard.

[0243] If the number of fourth resources is less than Q, the terminal device may not send the first reporting information to the network device. Alternatively, the format of the first reporting information sent by the terminal device can be the index of a third resource + the indexes of Q first resources + the channel state information of a third resource + the channel state information of Q first resources. Alternatively, the format of the first reporting information sent by the terminal device can be the indexes of Q first resources + the channel state information of a third resource + the channel state information of Q first resources. Alternatively, the format of the first reporting information sent by the terminal device can be the indexes of Q first resources + the channel state information of Q first resources. Alternatively, the format of the first reporting information sent by the terminal device can be the indexes of Q first resources. Among them, the fourth resources are included in the Q first resources. Or rather, the Q first resources are the top Q first resources in the at least one first resource sorted in descending order of channel quality. Specifically, differential reporting can also be used for reporting.

[0244] It can be understood that step 530 is an optional step and is represented by a dashed line in FIG. 6.

[0245] In the above technical solution, the at least one first resource can be a part of the resources with relatively good channel quality in the resources. By measuring the channel quality of the beam according to the information of the received at least one first resource, the delay of beam measurement can be reduced.

[0246] Next, possible communication devices provided by the embodiments of this application will be introduced.

[0247] FIGS. 7 to 11 are schematic structural diagrams of possible communication devices provided by the embodiments of this application.

[0248] FIG7 is a schematic block diagram of a communication device 600 provided in an embodiment of the present application.

[0249] As shown in FIG. 7 , the communication device 600 includes a transceiver unit 610 and a processing unit 620 .

[0250] The above-mentioned communication device 600 can be used to implement the functions of the terminal device or network device in the method embodiment shown in Figure 6 above.

[0251] When the communication device 600 is used to implement the functions of the terminal device in the method embodiment shown in Figure 6 above, the transceiver unit 610 can be used to execute step 510 in Figure 6 to receive first indication information, where the first indication information includes information about at least one first resource. The processing unit 620 can be used to execute step 520 in Figure 6 to perform measurements based on the information about at least one first resource. The transceiver unit 610 can also be used to execute step 530 in Figure 6 to send first reporting information when a first condition is met, where the first reporting information includes information about a fourth resource, where the fourth resource is a resource in at least one first resource whose channel quality is better than the channel quality of a third resource; the first condition includes at least one of the following: the channel quality corresponding to the third resource is lower than a first threshold; the channel quality degradation value corresponding to the third resource exceeds a second threshold; there are at least k first resources whose channel quality is better than the channel quality of the third resource, where k is a positive integer.

[0252] When the communication device 600 is used to implement the functions of the network device in the method embodiment shown in FIG. 6 , the transceiver unit 610 can be used to execute step 510 in FIG. 6 to send first indication information, where the first indication information includes information about at least one first resource. The transceiver unit 610 can also be used to execute step 530 in FIG. 6 to receive first reporting information, where the first reporting information includes information about a fourth resource, where the fourth resource is a resource among the first resources having a channel quality that is better than the channel quality of the third resource.

[0253] A more detailed description of the transceiver unit 610 and the processing unit 620 can be directly obtained by referring to the relevant description in the method embodiment shown in FIG6 , and is not repeated here.

[0254] FIG8 is another schematic block diagram of a communication device 700 provided in an embodiment of the present application.

[0255] As shown in FIG8 , the communication device 700 includes a sending unit 710 and a receiving unit 720 .

[0256] Figure 8 can be considered as a detailed schematic diagram of the transceiver unit 610 in Figure 7. For example, when used to implement the functions of the terminal in the method embodiment shown in Figure 6 above, the receiving unit 720 can be used to execute step 510 in Figure 6 to receive first indication information, where the first indication information includes information about at least one first resource. The sending unit 710 can be used to execute step 530 in Figure 6 and, if a first condition is met, send first reporting information, where the first reporting information includes information about a fourth resource, where the fourth resource is a resource in at least one first resource whose channel quality is better than the channel quality of the third resource. The first condition includes at least one of the following: the channel quality corresponding to the third resource is lower than a first threshold; the channel quality degradation value corresponding to the third resource exceeds a second threshold; there are at least k first resources whose channel quality is better than the channel quality of the third resource, where k is a positive integer. When used to implement the functions of the network device in the method embodiment shown in Figure 6 above, the sending unit 710 can be used to execute step 510 in Figure 6 to send first indication information, where the first indication information includes information about at least one first resource. The receiving unit 720 can be used to execute step 530 shown in Figure 6 to receive first reporting information, where the first reporting information includes information about a fourth resource, where the fourth resource is a resource in the first resource whose channel quality is better than that of the third resource.

[0257] A more detailed description of the sending unit 710 and the receiving unit 720 can be directly obtained by referring to the relevant description in the method embodiment shown in FIG6 , and is not repeated here.

[0258] The communication device 700 can be used to implement the functions of the network device in the method embodiment shown in FIG. 6 .

[0259] The sending unit may be configured to execute step 510 in FIG6 to send first indication information, where the first indication information includes information about at least one first resource. The receiving unit may be configured to execute step 530 shown in FIG6 to receive first reporting information, where the first reporting information includes information about a fourth resource, where the fourth resource is a resource in the first resource whose channel quality is better than that of the third resource.

[0260] A more detailed description of the sending unit 710 and the receiving unit 720 can be directly obtained by referring to the relevant description in the method embodiment shown in FIG6 , and is not repeated here.

[0261] It should be understood that the division of units in the embodiments of the present application is illustrative and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present application may be integrated into a single processor, or may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0262] Figure 9 is another schematic block diagram of a communication device 800 provided in an embodiment of the present application. The device 800 may be a chip system, or may be a device configured with a chip system for implementing the method described in the above method embodiment. In the embodiment of the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices.

[0263] As shown in Figure 9 , the apparatus 800 may include a processor 810 and a communication interface 820. The communication interface 820 may be used to communicate with other devices via a transmission medium, thereby enabling the apparatus 800 to communicate with other devices. The communication interface 820 may be, for example, a transceiver, an interface, a bus, a circuit, or a device capable of transmitting and receiving data. The processor 810 may use the communication interface 820 to input and output data and implement the beam measurement method described in the embodiment corresponding to Figure 6 . Specifically, the apparatus 800 may be used to implement the functions of the network device or terminal device in the above-described method embodiment. The apparatus 800 may be a chip. It will be understood that when the apparatus 800 is a chip, the communication interface may refer to an input or output interface. The input interface is used to perform the receiving step in the embodiment, for example, receiving the first indication information and receiving the first report information via the input interface. The output interface is used to perform the sending step in the embodiment, for example, sending the first indication information and sending the first report information via the output interface.

[0264] Optionally, the device 800 also includes at least one memory 830 for storing program instructions and / or data. The memory 830 is coupled to the processor 810. The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 810 may operate in conjunction with the memory 830. The processor 810 may execute program instructions stored in the memory 830. At least one of the at least one memory 830 may be included in the processor 810. At least one of the at least one memory 830 may be built into the communication device 800. At least one of the at least one memory 830 may be external to the communication device 800. Therefore, as shown in the figure, the memory 830 is represented by a dotted line in Figure 9.

[0265] The specific connection medium between the processor 810, communication interface 820, and memory 830 is not limited in the embodiments of the present application. In Figure 9, the processor 810, communication interface 820, and memory 830 are connected via a bus 840. The bus 840 is represented by a bold line in Figure 9, and the connection methods between other components are only for schematic illustration and are not limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one bold line is used in Figure 9, but this does not mean that there is only one bus or one type of bus.

[0266] Figure 10 is a schematic diagram of the structure of a network device provided in an embodiment of the present application, for example, a schematic diagram of the structure of a base station, which is an example of a network device. As shown in the figure, the base station 900 may include one or more DUs 910 and one or more CUs 920. The CU 920 may communicate with the next generation core network (NG core, NC). The DU 910 may include at least one antenna 911, at least one radio frequency unit 912, at least one processor 913, and at least one memory 914. The DU 910 is mainly used for transmitting and receiving radio frequency signals, converting radio frequency signals into baseband signals, and partial baseband processing. The CU 920 may include at least one processor 922 and at least one memory 921. The CU 920 and the DU 910 may communicate through an interface, wherein the control plane (CP) interface may be an Fs-C, such as F1-C, and the user plane (UP) interface may be an Fs-U, such as F1-U.

[0267] The CU 920 is primarily responsible for baseband processing and base station control. The DU 910 and CU 920 can be physically located together or separately, i.e., in a distributed base station. The CU 920 is the control center of the base station, also known as a processing unit, and is primarily responsible for performing baseband processing functions. For example, the CU 920 can be used to control the base station to execute the method executed by the network device in the embodiment shown in FIG6 .

[0268] In one example, the CU 920 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network with a single access indication (such as a 5G network), or may respectively support wireless access networks with different access standards (such as an LTE network, a 5G network, or other networks). The memory 921 and the processor 922 may serve one or more boards. That is, a memory and a processor may be separately set on each board. It is also possible that multiple boards share the same memory and processor. In addition, necessary circuits may be provided on each board. The DU 910 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network with a single access indication (such as a 5G network), or may respectively support wireless access networks with different access standards (such as an LTE network, a 5G network, or other networks). The memory 914 and the processor 913 may serve one or more boards. That is, a memory and a processor may be separately set on each board. It is also possible that multiple boards share the same memory and processor. In addition, necessary circuits may be provided on each board.

[0269] It should be understood that the base station 900 shown in Figure 10 is only one possible architecture of a network device and should not constitute any limitation to this application. The method provided in this application is applicable to network devices with other architectures. For example, a network device including a CU, a DU, and an active antenna processing unit (AAU). This application does not limit the specific architecture of the network device.

[0270] FIG11 is a schematic diagram of the structure of a terminal device 1000 provided in an embodiment of the present application. The terminal device 1000 can be used to implement the steps performed by the terminal device in the embodiment shown in FIG6. As shown in FIG11, the terminal device 1000 includes a processor 1001 and a transceiver 1002.

[0271] Optionally, the terminal device 1000 further includes a memory 1003. The processor 1001, the transceiver 1002, and the memory 1003 can communicate with each other through an internal connection path to transmit control and / or data signals. The memory 1003 is used to store a computer program, and the processor 1001 is used to call and run the computer program from the memory 1003 to control the transceiver 1002 to send and receive signals.

[0272] Optionally, the terminal device 1000 may further include an antenna 1004 for transmitting, via wireless signals, uplink data or uplink control signaling output by the transceiver 1002. Optionally, the terminal device 1000 may further include a Wi-Fi module 1011 for accessing a wireless network.

[0273] The processor 1001 and the memory 1003 may be combined into a processing device, and the processor 1001 is used to execute the program code stored in the memory 1003 to implement the above functions. In specific implementation, the memory 1003 may also be integrated into the processor 1001 or independent of the processor 1001.

[0274] The transceiver 1002 may correspond to the transceiver unit 610 in FIG. 7 , the transmitting unit 710 and the receiving unit 720 in FIG. 8 , or the communication interface 820 in FIG. The transceiver 1002 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). The receiver is used to receive signals, and the transmitter is used to transmit signals.

[0275] Optionally, the terminal device 1000 may further include a power supply 1005 for providing power to various devices or circuits in the terminal device 1000 .

[0276] In addition, in order to make the functions of the terminal device more complete, the terminal device 1000 may also include one or more of an input unit 1006, a display unit 1007, an audio circuit 1008, a camera 1009 and a sensor 1010, and the audio circuit may also include a speaker 1008a, a microphone 1008b, etc.

[0277] It should be understood that the operations and / or functions of the various modules in the terminal device 1000 are respectively for implementing the corresponding processes in the above method embodiments. For details, please refer to the description in the above method embodiments. To avoid repetition, detailed description is appropriately omitted here.

[0278] The present application also provides a computer program product, which includes: a computer program (also referred to as code, or instructions). When the computer program is executed, the method described in the embodiment shown in FIG6 can be implemented.

[0279] The present application also provides a computer-readable storage medium storing a computer program (also referred to as code or instructions). When the computer program is executed, the method described in the embodiment shown in FIG6 can be implemented.

[0280] An embodiment of the present application provides a communication system, which includes the terminal device and the network device as described above.

[0281] It should be understood that the processor in the embodiments of the present application can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above-mentioned method embodiment can be completed by hardware integrated logic circuits in the processor or by software instructions. The above-mentioned processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above-mentioned method.

[0282] It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0283] The terms "unit", "module", etc. used in this specification can be used to refer to computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. The terms "unit" and "module" in the embodiments of this application have the same meaning and can be used interchangeably.

[0284] Those skilled in the art will appreciate that the various illustrative logical blocks and steps described in conjunction with the embodiments disclosed herein can be implemented using electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application. In the several embodiments provided in this application, it should be understood that the disclosed devices, equipment, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed can be through some interface, indirect coupling or communication connection of devices or units, and can be electrical, mechanical, or other forms.

[0285] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0286] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0287] In the above embodiments, the functions of each functional unit can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions (programs). When the computer program instructions (program) are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0288] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the technology or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

[0289] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A beam measurement method, characterized in that: The method comprises: receiving first indication information, where the first indication information includes information of at least one first resource; Measurement is performed according to the information of the at least one first resource.

2. The method according to claim 1, characterized in that The method further comprises: If the first condition is met, sending first reporting information, where the first reporting information includes information about a fourth resource, where the fourth resource is a resource in the at least one first resource whose channel quality is better than the channel quality corresponding to the third resource; The first condition includes at least one of the following: The channel quality corresponding to the third resource is lower than the first threshold; The channel quality degradation value corresponding to the third resource exceeds a second threshold; There are at least k first resources corresponding to channel qualities that are better than the channel qualities corresponding to the third resources, and k is a positive integer.

3. A beam indication method, characterized in that: The method comprises: First indication information is sent, where the first indication information includes information of at least one first resource.

4. The method according to claim 3, characterized in that The method further comprises: First reporting information is received, where the first reporting information includes information about a fourth resource, where the fourth resource is a resource in the first resource whose channel quality is better than the channel quality corresponding to the third resource.

5. The method according to any one of claims 1 to 4, characterized in that: The first indication information is medium access control-control element MAC-CE signaling.

6. The method according to any one of claims 1 to 5, characterized in that: The first indication information includes at least one of the following: a resource set corresponding to the at least one first resource, the number of the at least one first resource, the index of the at least one first resource, the beam information of the at least one first resource, the time-frequency resource mapping information of the at least one first resource, the power information of the at least one first resource, the scrambling index information of the at least one first resource, the periodic information of the at least one first resource, the time slot information of the at least one first resource, the resource configuration information corresponding to the at least one first resource, and the reporting configuration information corresponding to the at least one first resource.

7. The method according to any one of claims 1 to 6, characterized in that: The at least one first resource uses the same first information, and the first information includes at least one of the following: beam information, time-frequency resource mapping information, power information, scrambling index information, period information and time slot information.

8. The method according to any one of claims 1 to 7, characterized in that: The information of the at least one first resource is used to update information of resources in a resource set configured by radio access control RRC signaling; The first indication information includes information about the one resource set.

9. The method according to any one of claims 1 to 6, characterized in that: The first indication information includes information of at least one second resource, and the at least one first resource is associated with the at least one second resource in a one-to-one manner; The information of the at least one second resource includes an index of a resource set corresponding to the at least one second resource and / or an index of the at least one second resource.

10. The method according to claim 9, characterized in that Each first resource adopts the second information of the second resource associated with each first resource; or, the second information of each first resource is determined based on the second information of the second resource associated with each first resource.

11. The method according to claim 9, characterized in that The first indication information also includes a second information offset, and the second information of each first resource is determined based on the second information of a second resource associated with each first resource and the second information offset.

12. The method according to claim 10 or 11, characterized in that: The second information includes at least one of the following: beam information, time-frequency resource mapping information, power information, scrambling index information, period information and time slot information.

13. The method according to claim 2 or 4, characterized in that: The information of the third resource is configured through RRC signaling, or the information of the third resource is included in the first indication information, or the third resource is the nth first resource among the at least one first resource, where n is a positive integer.

14. The method according to claim 2, 4 or 13, characterized in that: The first reporting information includes at least one of the following: an index of the fourth resource, channel state information of the fourth resource, channel state information of the third resource, and an index of the third resource.

15. A communication device, characterized in that: The device comprises: A transceiver unit, configured to receive first indication information, where the first indication information includes information of at least one first resource; The processing unit performs measurement according to the information of the at least one first resource.

16. The device according to claim 15, characterized in that: The transceiver unit is further configured to send first reporting information when the first condition is met, where the first reporting information includes information about a fourth resource, where the fourth resource is a resource whose channel quality is better than the channel quality corresponding to the third resource in the at least one first resource; The first condition includes at least one of the following: The channel quality corresponding to the third resource is lower than the first threshold; The channel quality degradation value corresponding to the third resource exceeds a second threshold; There are at least k first resources corresponding to channel qualities that are better than the channel qualities corresponding to the third resources, and k is a positive integer.

17. A communication device, characterized in that: The device comprises: The transceiver unit is used to send first indication information, where the first indication information includes information of at least one first resource.

18. The device according to claim 17, characterized in that: The transceiver unit is further used to receive first reporting information, where the first reporting information includes information about a fourth resource, and the fourth resource is a resource in the first resource whose channel quality is better than the channel quality corresponding to the third resource.

19. The device according to any one of claims 15 to 18, characterized in that: The first indication information is medium access control-control element MAC-CE signaling.

20. The device according to any one of claims 15 to 19, characterized in that The first indication information includes at least one of the following: a resource set corresponding to the at least one first resource, the number of the at least one first resource, the index of the at least one first resource, the beam information of the at least one first resource, the time-frequency resource mapping information of the at least one first resource, the power information of the at least one first resource, the scrambling index information of the at least one first resource, the periodic information of the at least one first resource, the time slot information of the at least one first resource, the resource configuration information corresponding to the at least one first resource, and the reporting configuration information corresponding to the at least one first resource.

21. The device according to any one of claims 15 to 20, characterized in that The at least one first resource uses the same first information, and the first information includes at least one of the following: beam information, time-frequency resource mapping information, power information, scrambling index information, period information and time slot information.

22. The device according to any one of claims 15 to 21, characterized in that The information of the at least one first resource is used to update information of resources in a resource set configured by radio access control RRC signaling; The first indication information includes information about the one resource set.

23. The device according to any one of claims 15 to 20, characterized in that The first indication information includes information of at least one second resource, and the at least one first resource is associated with the at least one second resource in a one-to-one manner; The information of the at least one second resource includes an index of a resource set corresponding to the at least one second resource and / or an index of the at least one second resource.

24. The device according to claim 23, characterized in that Each first resource adopts the second information of the second resource associated with each first resource; or, the second information of each first resource is determined based on the second information of the second resource associated with each first resource.

25. The device according to claim 23, characterized in that The first indication information also includes a second information offset, and the second information of each first resource is determined based on the second information of a second resource associated with each first resource and the second information offset.

26. The device according to claim 24 or 25, characterized in that The second information includes at least one of the following: beam information, time-frequency resource mapping information, power information, scrambling index information, period information and time slot information.

27. The device according to claim 16 or 18, characterized in that The information of the third resource is configured through RRC signaling, or the information of the third resource is included in the first indication information, or the third resource is the nth first resource among the at least one first resource, where n is a positive integer.

28. The device according to claim 16, 18 or 27, characterized in that The first reporting information includes at least one of the following: an index of the fourth resource, channel state information of the fourth resource, channel state information of the third resource, and an index of the third resource.

29. A communication device, characterized in that: comprising a processor, wherein The processor is used to execute the computer program in the memory, so that the device implements the method according to any one of claims 1-2 or 5-14, or implements the method according to any one of claims 3-14.

30. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or instruction. When the computer program or instruction is executed by a computer, the method as described in any one of claims 1-2 or 5-14 is implemented, or the method as described in any one of claims 3-14 is implemented.

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