Channel state information sending method, channel state information receiving method, apparatuses and storage medium

Abstract

Provided are a channel state information sending method, a channel state information receiving method, apparatuses, and a storage medium. The channel state information sending method comprises: on the basis of measurement of channel state information (CSI), acquiring a CSI report; and sending the CSI report, the CSI report comprising channel quality information corresponding to N reference signal resources and an indication of some reference signal resources among the N reference signal resources, and N being a positive integer.

Description

Method, device and storage medium for sending and receiving channel state information

[0001] This disclosure claims priority to Chinese patent application No. 202311294965.1, filed on September 28, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the field of communication technologies, and in particular to a method, device, and storage medium for sending and receiving channel state information. Background Art

[0003] Currently, multi-antenna technology has been widely used in various radio communication technologies, such as the long-term evolution (LTE) mobile communication network of the fourth-generation mobile communication technology (4G) and the new radio (NR) mobile communication network of the fifth-generation mobile communication technology (5G). In the future sixth-generation mobile communication technology (6G), multi-antenna technology is also receiving extensive attention and research.

[0004] Summary of the Invention

[0005] In a first aspect, an embodiment of the present disclosure provides a method for transmitting channel state information. The method includes:

[0006] Based on the measurement of the channel state information CSI, a CSI report is obtained.

[0007] A CSI report is sent, where the CSI report includes channel quality information corresponding to N reference signal resources and an indication of some of the N reference signal resources, where N is a positive integer.

[0008] In a second aspect, an embodiment of the present disclosure provides a method for receiving channel state information. The receiving method includes:

[0009] A CSI report is received, where the CSI report includes channel quality information corresponding to N reference signal resources and an indication of a portion of the N reference signal resources, where N is a positive integer.

[0010] In a third aspect, an embodiment of the present disclosure provides a communication device, which includes a processing module and a sending module.

[0011] The processing module is configured to obtain a CSI report based on the measurement of the channel state information CSI.

[0012] The sending module is configured to send a CSI report, where the CSI report includes channel quality information corresponding to N reference signal resources and an indication of some reference signal resources among the N reference signal resources, where N is a positive integer.

[0013] In a fourth aspect, an embodiment of the present disclosure provides another communication device, which includes a receiving module.

[0014] The receiving module is configured to receive a CSI report, where the CSI report includes channel quality information corresponding to N reference signal resources and an indication of some reference signal resources among the N reference signal resources, where N is a positive integer.

[0015] In a fifth aspect, embodiments of the present disclosure provide a communication device. The communication device includes: a processor and a memory; the memory stores instructions executable by the processor; and when the processor is configured to execute the instructions, the communication device implements any of the methods provided in the first or second aspects above.

[0016] In a sixth aspect, an embodiment of the present disclosure provides a computer-readable storage medium storing computer instructions, which, when executed on a computer, cause the computer to execute any one of the methods provided in the first or second aspect.

[0017] In a seventh aspect, an embodiment of the present disclosure provides a computer program product comprising computer instructions. When the computer instructions are executed on a computer, the computer is caused to execute any one of the methods provided in the first aspect or the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation to the technical solution of the present disclosure.

[0019] FIG1 is a schematic diagram of the architecture of a communication system according to some embodiments.

[0020] FIG2 is a flowchart of a method for transmitting channel state information according to some embodiments.

[0021] FIG3 is a schematic diagram of a reference signal resource according to some embodiments.

[0022] FIG4 is a schematic diagram of another reference signal resource according to some embodiments.

[0023] FIG5 is a schematic diagram of yet another reference signal resource according to some embodiments.

[0024] FIG6 is a schematic diagram of yet another reference signal resource according to some embodiments.

[0025] FIG7 is a schematic diagram of yet another reference signal resource according to some embodiments.

[0026] FIG8 is a schematic diagram of yet another reference signal resource according to some embodiments.

[0027] FIG9 is a flowchart of a method for receiving channel state information according to some embodiments.

[0028] FIG10 is a schematic diagram illustrating the composition of a communication device according to some embodiments.

[0029] FIG11 is a schematic diagram illustrating the composition of another communication device according to some embodiments.

[0030] FIG12 is a schematic structural diagram of a communication device according to some embodiments. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present disclosure.

[0032] In the description of this disclosure, unless otherwise specified, " / " means "or". For example, A / B can mean A or B. "And / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: only A, only B, and A and B. In addition, "at least one" means one or more, and "a plurality" means two or more. Expressions such as "first" and "second" do not limit the quantity and execution order, and expressions such as "first" and "second" do not necessarily limit them to be different.

[0033] It should be noted that in this disclosure, expressions such as "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described in this disclosure as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of expressions such as "exemplarily" or "for example" is intended to present the relevant concepts in a detailed manner.

[0034] In millimeter-wave communication systems, large-scale antenna arrays are typically used to form high-gain shaped beams to compensate for transmission losses and ensure system coverage. At the same time, both user devices and base stations need to adjust their beams to achieve precise alignment during initial access and data transmission to ensure maximum gain. The 3rd Generation Partnership Project (3GPP) has developed a comprehensive set of beam management procedures for adjusting high-frequency beam directions and maintaining a suitable transmit / receive beam pair (including beam scanning, beam measurement, beam reporting, and beam indication).

[0035] During the beam scanning process, the base station can configure multiple reference signal resources for beam measurement for the terminal, and the reference signal resources include channel state information reference signal (CSI-RS) or synchronization signal block (SSB). The reference signal resources are carried on different downlink transmit beams respectively. The terminal can measure the reference signal and report the beam measurement results to the base station. The reporting parameters of the beam measurement include the reference signal resource identifier SSBRI (Synchronization Signals Block Resource Indicator, synchronization signal block resource indicator) / CRI (CSI-RS resource indicator, CSI-RS resource indicator) corresponding to one or more transmit beams selected by the terminal, the reference signal receiving power (RSRP) or the physical layer signal to interference plus noise ratio (SINR). When the number of reported beams of the terminal is greater than 1, the beam measurement result RSRP / SINR can be reported to the base station in a differential reporting manner. The maximum RSRP / SINR value among the multiple beam measurement results is selected as the reference RSRP / SINR, and its quantized result is directly reported; other RSRP / SINR values ​​are reported as differential values ​​(i.e., the quantized difference between the reported and maximum RSRP / SINR values). However, current beam reporting methods require beam indication information, such as the CSI-RS resource identifier and SSB number, for each reported beam. When the reported beam data is large, this results in high beam reporting overhead.

[0036] In view of this, the present disclosure provides a method for transmitting channel state information. The method includes: obtaining a CSI report based on channel state information (CSI) measurement; and transmitting the CSI report. The CSI report includes channel quality information corresponding to N reference signal resources and an indication of a portion of the N reference signal resources, where N is a positive integer. This method can reduce reporting overhead and improve reporting accuracy.

[0037] The technical solutions provided by the embodiments of the present disclosure can be applied to various mobile communication networks, for example, new radio (NR) mobile communication networks using fifth-generation mobile communication technology (5G), future mobile communication networks (including but not limited to various sixth-generation mobile communication technologies, 6G), or multiple communication convergence systems, etc. The embodiments of the present disclosure are not limited to this.

[0038] The network architecture of the mobile communication network (including but not limited to 3G, 4G, 5G and future mobile communication networks) in the embodiments of the present disclosure may include network-side devices (for example, including but not limited to base stations) and receiving-side devices (for example, including but not limited to terminals). And it should be understood that, in this example, in the downlink, the first communication node (also referred to as the first communication node device) may be a base station-side device, and the second communication node (also referred to as the second communication node device) may be a terminal-side device. Of course, in the uplink, the first communication node may also be a terminal-side device, and the second communication node may also be a base station-side device. In the device-to-device communication between the two communication nodes, the first communication node and the second communication node may both be base stations or terminals. The first communication node and the second communication node may be referred to as the first node and the second node, respectively.

[0039] Exemplarily, taking the network side device as a base station and the receiving side device as a terminal as an example, FIG1 shows a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure. As shown in FIG1 , the communication system 10 includes multiple base stations (e.g., base station 201 and base station 202) and multiple terminals (e.g., terminal 301, terminal 302, terminal 303, and terminal 304). Multiple base stations and multiple terminals can be connected in communication. A base station can provide network services to a terminal in one cell, and a base station can also provide network services to terminals in multiple cells at the same time.

[0040] In some embodiments, the base station may be a base station or an evolved base station (eNB or eNodeB) in long term evolution (LTE), long term evolution advanced (LTEA), a base station device in a 5G network, or a base station in a future communication system. The base station may include various macro base stations, micro base stations, home base stations, wireless remote devices, reconfigurable intelligent surfaces (RISs), routers, wireless fidelity (WIFI) devices, or various network-side devices such as primary cells and secondary cells.

[0041] In some embodiments, the terminal can be a device with wireless transceiver capabilities. The terminal can be deployed on land (including indoors or outdoors, handheld, wearable or vehicle-mounted); the terminal can also be deployed on the water (such as a ship, etc.); the terminal can also be deployed in the air (for example, on an airplane, a balloon, and a satellite, etc.). The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical care, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like. The embodiments of the present disclosure do not limit the application scenarios. The terminal may sometimes also be referred to as a user, user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent or UE device, etc., but the embodiments of the present disclosure are not limited to this.

[0042] In some embodiments, the indicator of the parameter may also be referred to as an index or an identifier (ID), and indication, identification and indication are equivalent concepts. For example, the resource identifier of the wireless system may also be referred to as a resource indicator or a resource index. The resource indication of the wireless system includes, but is not limited to, one of the following: reference signal resources, reference signal resource groups, reference signal resource configurations, channel state information (CSI) reports, CSI report sets, terminals, base stations, panels, neural networks, sub-neural networks, neural network layers, precoding matrices, beams, transmission modes, sending modes, receiving modes, modules, models, functional modules, functions, and the like. The base station may indicate the identifier of one or a group of resources to the terminal through various high-layer signaling or physical layer signaling. The terminal may also feedback the identifier of one or a group of resources to the base station through high-layer signaling and / or physical layer signaling.

[0043] In some embodiments, to save signaling overhead, multiple reference signal resources may be divided into multiple sets (e.g., CSI-RS resource set, CSI-IM resource set, SRS resource set). A reference signal resource set includes at least one reference signal resource, and multiple reference signal resource sets may all be configured from the same reference signal resource setting (e.g., CSI-RS resource setting, SRS resource setting; the CSI-RS resource setting may be combined with the CSI-IM resource setting, all referred to as the CSI-RS resource setting) to configure parameter information.

[0044] In some embodiments, a beam includes a transmit beam, a receive beam, a receive beam and a transmit beam pair, and a transmit beam and a receive beam pair. In some embodiments, a beam can be understood as a resource (e.g., a reference signal resource, a transmit-side spatial filter, a receive-side spatial filter, a spatial filter, a spatial reception parameter, a transmit-side precoding, a receive-side precoding, an antenna port, an antenna weight vector, an antenna weight matrix, etc.). A beam index can be replaced with a resource index (e.g., a reference signal resource index) because a beam can be bound to some time-frequency code resources for transmission. A beam can also be a transmission (transmit / receive) mode; the transmission mode may include spatial division multiplexing, frequency / time domain diversity, beamforming, etc. In some embodiments, a beam pair includes a combination of a transmit beam and a receive beam. In some embodiments, a beam is equivalent to a beam state, a quasi-co-location (QCL) state, a transmission configuration indicator (TCI) state, a spatial relation, spatial relation information, a reference signal (RS), a reference signal resource, a spatial filter, and a precoding. In some embodiments, the transmission and reception point TRP is equivalent to a reference signal port, a reference signal port group, a reference signal resource, or a reference signal resource set.

[0045] In some examples, in order to better transmit data or signals, the base station or terminal needs to obtain measurement parameters, which may include channel state information or other parameters used to characterize the channel. The channel state information may include at least one of the following: channel state information-reference signal resource indicator (CSI-RS Resource Indicator, CRI), synchronization signal block resource indicator (Synchronization Signals Block Resource Indicator, SSBRI), layer 1 reference signal received power (L1 Reference Signal Received Power, L1-RSRP or RSRP), differential RSRP (Differential RSRP), layer 1 reference signal signal-to-interference noise ratio (L1 Signal-to-Interference Noise Ratio, L1-SINR or SINR), differential L1-SINR (Differential L1-SINR), reference signal received quality (Reference Signal Received Quality, RSRQ), L1-RSRQ, differential RSRQ, channel quality indicator (Channel Quality Indicator, CQI), precoding matrix indicator (Precoding Matrix Indicator, PMI), layer indicator (Layer The CSI includes the following: a first-category precoding information (e.g., codebook-based precoding information), a rank indicator (RI), and precoding information. The precoding information includes first-category precoding information (e.g., codebook-based precoding information). The precoding matrix indication is a type of codebook-based precoding information. The precoding information also includes non-codebook-based precoding information (e.g., second-category precoding information). In one example, CSI that includes only the first-category precoding information is referred to as first-category CSI. In another example, CSI that includes the second-category precoding information is referred to as second-category CSI.

[0046] In some embodiments, the beam parameter information is the L1 Reference Signal Received Power (L1-RSRP or RSRP) and differential RSRP corresponding to at least one beam. In some embodiments, the beam parameter information is the L1 Signal-to-Interference Noise Ratio (L1-SINR or SINR) and differential SINR corresponding to at least one beam. In some embodiments, the beam parameter information is the Reference Signal Received Quality (RSRQ) corresponding to at least one beam. In some embodiments, the beam parameter information includes, but is not limited to, a Channel Quality Indicator (CQI). In some embodiments, the beam parameter information is the beam angle (at least one of AOA (angle of arrival), ZOA (zenith of arrival), AOD (angle of departure), and ZOD (zenith of departure)) corresponding to at least one beam. In some embodiments, the beam parameter information is the transmit beam index corresponding to at least one beam. In some embodiments, the beam parameter information is the receive beam index corresponding to at least one beam. In some embodiments, the beam parameter information is the transmit beam and receive beam pair index (referred to as beam pair index or beam pair for short) corresponding to at least one beam. In some embodiments, the beam parameter information is the beam domain receive power map (BDRPM) corresponding to at least one beam. In some embodiments, the beam parameter information is the channel state information reference signal resource indicator (CSI-RS Resource Indicator, CRI) corresponding to at least one beam. In some embodiments, the beam parameter information is the synchronization signal block resource indicator (SSBRI) or other reference signal resource indicator (e.g., SRSRI) corresponding to at least one beam. In some embodiments, the beam parameter information is a combination of at least two of the following beam parameter information corresponding to at least one beam: RSRP, RSRQ, SINR, CQI, beam angle, transmit beam index, receive beam index, beam pair index, CRI, SSBRI, etc. In some embodiments, the beam parameter information is a linear value of one of RSRP, RSRQ, and SINR.In some embodiments, the beam parameter information is a logarithmic value or a decibel (DB) value of one of RSRP, RSRQ, and SINR.

[0047] In some embodiments, beam parameter information may also be referred to as beam quality information, channel quality information, channel measurement results, beam measurement results, or measurement results. In some examples, beam parameter information is a subset of channel state information, meaning that beam parameter information is channel state information, which in turn is a measurement parameter. In other examples, measurement parameters, channel state information, and beam parameter information are all measurement results, processing results, or generation results.

[0048] In some embodiments, to transmit channel state information at the physical layer, the terminal and the base station define a report (e.g., a CSI report or CSI report config). The CSI report defines at least one of the following parameters: the time-frequency resources used for CSI feedback, the report quality (report Quantity) included in the CSI, the time domain type (report Config Type) for CSI feedback, channel measurement resources, interference measurement resources, and the measurement bandwidth. The CSI report can be transmitted on uplink transmission resources, including the PUSCH and PUCCH. The CSI report also includes time domain characteristics, including periodic CSI reports (P-CSI), aperiodic CSI reports (AP-CSI), and semi-persistent CSI reports (SP-CSI). Generally speaking, P-CSI has a relatively small number of bits and is transmitted on the PUCCH, while A-CSI has a larger number of bits and is generally transmitted on the PUSCH. SP-CSI can be transmitted on either the PUSCH or the PUCCH. P-CSI transmitted over PUCCH is generally configured using higher-layer signaling (e.g., RRC (Radio Resource Control)). SP-CSI transmitted over PUCCH is also configured, activated, or deactivated using higher-layer signaling (RRC and / or MAC CE). SP-CSI transmitted over PUSCH is activated or deactivated via physical layer signaling (e.g., DCI (Downlink control information)). A-CSI is triggered by DCI. DCI is generally transmitted on the physical downlink control channel (PDCCH).

[0049] In some embodiments, the base station configures the terminal with NC CSI reports (CSI reports) that need to be fed back to the base station through high-layer signaling and / or physical layer signaling. Each CSI report has an identity (ID), which can be called a CSI report ID. The terminal can select MC CSI reports from the NC CSI reports based on its own computing power or processing power and the requirements of the base station, and feed back at least one CSI report from the MC CSI reports based on the resources for uplink feedback. NC and MC are positive integers, and MC<=NC. In some embodiments, the terminal needs to feed back MC CSI reports, but the feedback resources of at least two of the MC reports are conflicting. The conflict of feedback resources of the two reports means that at least one symbol in the transmission resources (e.g., PUCCH, PUSCH) corresponding to the two reports used to feed back the two reports is the same and / or at least one subcarrier is the same.

[0050] In some embodiments, feedback CSI may also be referred to as transmission CSI or sending CSI, for example, channel state information is carried on uplink transmission resources for feedback or transmission. Both the uplink transmission resources and the corresponding CSI are indicated by a channel state information report. In an embodiment of the present disclosure, feedback CSI may also be referred to as transmission CSI or sending CSI, for example, channel state information is carried on uplink transmission resources for feedback or transmission. Both the uplink transmission resources and the corresponding CSI are indicated by a channel state information report. In one example, transmitting a CSI report refers to transmitting the content that needs to be transmitted indicated in the CSI report (including but not limited to channel state information, where transmission includes sending or receiving, and may also be replaced by feedback or receiving). In one example, transmitting a CSI report refers to transmitting the content that needs to be transmitted indicated by the CSI report through uplink transmission resources, including but not limited to channel state information, where transmission includes sending or receiving, and may also be replaced by feedback or receiving.

[0051] The method provided by the present disclosure is described in detail below with reference to the accompanying drawings.

[0052] As shown in FIG2 , an embodiment of the present disclosure provides a method for sending channel state information, which includes the following steps.

[0053] S101. Obtain a CSI report based on CSI measurement, where the CSI report includes channel quality information corresponding to N reference signal resources and an indication of some reference signal resources among the N reference signal resources.

[0054] N is a positive integer.

[0055] In addition, the above-mentioned "indication" is used to distinguish and indicate each reference signal resource, and may also be called an "index", which can also be expressed as "index", "indicator", "indication", or "identifier". For ease of description, the following uses "indication" as an example, such as the indication of a reference signal resource and the indication of the maximum reference signal resource.

[0056] In some embodiments, the channel quality information corresponding to the reference signal resource may include RSRP (e.g., L1-RSRP), differential RSRP, SINR (e.g., L1-SINR), differential L1-SINR, RSRQ, CQI, or other possible information. The indication of the reference signal resource may include CRI, SSBRI, SRSRI, or other possible parameters. It should be understood that the indication of the reference signal resource corresponds one-to-one with the channel quality information.

[0057] For example, the base station may send reference signal resources from a reference signal resource set to the terminal. Accordingly, the terminal may receive and measure the reference signal resources to obtain multiple parameters (e.g., channel quality information corresponding to the reference signal resources, an indication of the reference signal resources, etc.). The terminal may then generate a CSI report based on the obtained parameters, such as the channel quality information corresponding to the multiple reference signal resources and the indication of the reference signal resources.

[0058] For example, a reference signal resource set may include N CSI-RS resources and / or SSB resources. One CSI-RS resource or one SSB resource corresponds to one beam, or one CSI-RS resource or one SSB resource corresponds to one direction. Thus, the terminal can receive and measure multiple CSI-RS resources and / or SSB resources, obtain channel quality information corresponding to the N reference signal resources, and obtain indications of the N reference signal resources, and then generate a CSI report.

[0059] In some embodiments, the CSI report provided by the present disclosure may include an indication of a starting reference signal resource, which may also be referred to as a reference signal resource at a starting position among N reference signal resources, that is, the aforementioned part of the reference signal resources may be a starting reference signal resource.

[0060] The starting position generally refers to a position that is known in advance or commonly understood by the base station and the terminal. The starting position includes, but is not limited to, the position with the minimum reference signal resource indicator, the position with the maximum reference signal resource indicator, the position with the center reference signal resource indicator, and a specific reference signal resource position.

[0061] Illustratively, the CSI report provided by the present disclosure has at least the following possible implementations.

[0062] Implementation 1: The indications of the N reference signal resources are continuous. The aforementioned partial reference signal resources include the reference signal resource with the smallest indication or the reference signal resource with the largest indication among the N reference signal resources.

[0063] That is, the CSI report may include channel quality information corresponding to N reference signal resources, as well as an indication of the minimum or maximum reference signal resource among the N reference signal resources, which can also be understood as an indication of the starting reference signal resource. Furthermore, the indication corresponding to the starting reference signal resource is the starting indication among the consecutive indications of the N reference signal resources.

[0064] For example, the bit length occupied by the indication of the minimum or maximum reference signal resource among the N reference signal resources may be represents a round-up symbol, and M is the number of reference signal resources included in the reference signal resource set configured for channel measurement.

[0065] It should be noted that the multiple beams selected for reporting by the terminal may be concentrated in a specific area, so the beam angles or reference signal resource indications corresponding to the multiple beams are continuous. Therefore, to reduce the overhead generated by beam reporting, the beams to be reported can be described based on continuous indications by the starting position of the reference signal resource (for example, indicating the minimum or maximum reference signal resource) and length. This can reduce the number of indications required to be reported, thereby reducing reporting overhead.

[0066] In some embodiments, the channel quality information in the CSI report may be RSRP, SINR, RSRQ, CQI or other possible information.

[0067] In some embodiments, the CSI report further includes at least one of the following: a value of N, and a first indication.

[0068] The value of N is the number of reference signal resources that need to be reported determined by the terminal.

[0069] In an example, when the terminal itself determines that N reference signal resources need to be reported, the value of N can be added to the CSI report.

[0070] In another example, the base station determines the value of N and configures it to the terminal, so that the terminal receives the value of N. In this case, the CSI report may not include the value of N.

[0071] In addition, the first indication is used to indicate the reference signal resource with the largest channel quality information among the N reference signal resources. Therefore, the first indication can be called the strongest beam position indication.

[0072] Exemplarily, the bit length occupied by the first indication may be or It should be understood that when the terminal reports in a differential manner, the beam position corresponding to the maximum RSRP / SINR may be additionally indicated.

[0073] In one example, the first indication may be an indication of the reference signal resource corresponding to the strongest beam position. That is, the reference signal resource indication may be used to indicate the strongest beam position. In this case, the first indication occupies a bit length of

[0074] In another example, the first indication may also directly indicate the reference signal resource corresponding to the maximum RSRP / SINR. That is, it may directly indicate the reference signal resource with the largest measured RSRP / SINR among the N reference signal resources reported. In this case, the bit length occupied by the first indication may be

[0075] For example, as shown in FIG3 , the number M of reference signal resources included in the reference signal resource set configured for channel measurement is 16, with indications ranging from 0 to 15, and the solid circle represents the reference information resources that need to be reported. Furthermore, the number N of reference signal resources that the terminal needs to report is 4, and the reference signal resource with the greatest channel quality information among the N reference signal resources is reference signal resource 32. Furthermore, the reference signal resource indication at the starting position (i.e., the position with the smallest reference signal resource indication) corresponds to reference signal resource 31, with an indication of "4" and reporting bits of "0100." The strongest beam position, or the first indication, corresponds to reference signal resource 32. In one example, the strongest beam position is indicated by a reference signal resource indication, with an indication of "6" and reporting bits of "0110." In another example, the third reference signal resource among the four reported reference signal resources is directly indicated, corresponding to the strongest beam position, with a reporting bit of "10."

[0076] In some embodiments, if the sum of the reference signal resource indication at the starting position and the number of reported reference signal resources exceeds the maximum resource indication, a cyclic shift approach may be used to indicate and report the reference signal resources. When indicating the strongest beam position, the reference signal resource indication order may be based on the order before or after the cyclic shift.

[0077] For example, as shown in FIG4 , the number M of reference signal resources included in the reference signal resource set configured for channel measurement is 16, with indications ranging from 0 to 15, and the solid circle represents the reference information resources to be reported. Furthermore, the number N of reference signal resource indications that the terminal needs to report is 4. The reference signal resource indication at the starting position corresponds to the 15th reference signal resource, and the reporting bits are "1110." The position of the strongest beam corresponds to the first reference signal resource, and the reference signal resource indication is used to indicate the position of the strongest beam, with the reporting bits being "0000." Alternatively, according to the indication order before cyclic shift, the first reference signal resource of the four reported reference signal resources, i.e., reference signal resource 41, is directly indicated as corresponding to the position of the strongest beam, with the reporting bits being "00." Alternatively, according to the indication order after cyclic shift, the third reference signal resource of the four reported reference signal resources is directly indicated as corresponding to the position of the strongest beam, with the reporting bits being "10."

[0078] Implementation 2: N reference signal resources are divided into K reference signal resource regions, where the reference signal resource indications within each reference signal resource region are continuous, and the partial reference signal resources include the reference signal resource with the minimum indication or the reference signal resource with the maximum indication in each of the K reference signal resource regions. K is a positive integer less than or equal to N.

[0079] That is, the CSI report may include channel quality information corresponding to N reference signal resources and an indication of the minimum or maximum reference signal resource in each of K reference signal resource regions among the N reference signal resources.

[0080] For example, the bit length occupied by each indication indicating the minimum or maximum reference signal resource may be represents a round-up symbol, and M represents the number of reference signal resources included in the reference signal resource set configured for channel measurement.

[0081] It should be noted that the multiple beams selected and reported by the terminal are concentrated in multiple dispersed areas, and the reference signal resource indications corresponding to each area are continuous. Therefore, based on the continuous indications of each area, the beams to be reported can be described by the starting position (i.e., the indication indicating the minimum or maximum reference signal resource) and length of the reference signal resource in each area, thereby reducing reporting overhead.

[0082] In some embodiments, the channel quality information in the CSI report may be RSRP, SINR, RSRQ, CQI or other possible information.

[0083] In some embodiments, the CSI report further includes at least one of the following: a value of N, a number of reference signal resources contained in each of the K reference signal resource regions, a second indication, and K third indications.

[0084] The value of N is the number of reference signal resources that need to be reported determined by the terminal.

[0085] In an example, when the terminal itself determines that N reference signal resources need to be reported, the value of N can be added to the CSI report.

[0086] In another example, the base station determines the value of N and configures it to the terminal, so that the terminal receives the value of N. In this case, the CSI report may not include the value of N.

[0087] In addition, the second indication is used to indicate the reference signal resource with the largest channel quality information among the N reference signal resources. Therefore, the second indication can be called the strongest beam position indication.

[0088] Exemplarily, the bit length occupied by the second indication may be or It should be understood that when the terminal reports in a differential manner, it can additionally indicate the beam position corresponding to the maximum RSRP / SINR. Furthermore, the terminal can report a maximum RSRP / SINR in an absolute value manner and report other RSRP / SINRs in a differential manner.

[0089] In one example, the second indication may be an indication of the reference signal resource corresponding to the strongest beam position. That is, the reference signal resource indication may be used to indicate the strongest beam position. In this case, the second indication occupies a bit length of

[0090] In another example, the second indication may also directly indicate the reference signal resource corresponding to the maximum RSRP / SINR. That is, it may directly indicate the reference signal resource with the largest measured RSRP / SINR among the N reference signal resources reported. In this case, the bit length occupied by the second indication may be

[0091] Furthermore, each of the K third indicators corresponds to a reference signal resource region, and the third indicator is used to indicate a reference signal resource having the maximum channel quality information in the corresponding reference signal resource region.

[0092] Exemplarily, multiple larger RSRP / SINRs may be reported in absolute value format, while other RSRP / SINRs may be reported in differential format. That is, for each reference signal resource region, the maximum RSRP / SINR in the reference signal resource region may be determined and reported in absolute value format, while other RSRP / SINRs may be reported in differential format. In some embodiments, for a reference signal resource region having only one reference signal resource, the region does not require an additional strongest beam position indication (i.e., the third indication described above). Alternatively, for a reference signal resource region having multiple reference signal resources, the region needs to report the strongest beam position indication (i.e., the third indication described above).

[0093] In one example, a third indication may be an indication of a reference signal resource corresponding to the strongest beam position in the reference signal resource area corresponding to the third indication. That is, the reference signal resource indication may be used to indicate the strongest beam position. In this case, the bit length occupied by the third indication may be

[0094] In another example, among the N reference signal resource indications that need to be reported, the strongest beam position in each reference signal resource area is indicated respectively. Each third indication occupies a bit length of

[0095] In another example, a third indication may also directly indicate the reference signal resource corresponding to the maximum RSRP / SINR in the reference signal resource area corresponding to the third indication. That is, it may directly indicate the reference signal resource with the maximum measured RSRP / SINR in the reference signal resource area. At this time, in the kth (k=1, 2, ...K) reference signal resource area, the bit length occupied by the third indication is Nk is the number of reference signal resources corresponding to the kth (k=1, 2, . . . K) reference signal resource region.

[0096] In some embodiments, the CSI report may also include the value of K.

[0097] The value of K is the number of reference signal resource regions corresponding to the N reference signal resources. For example, if the terminal determines the value of K itself, the value of K may be included in the CSI report. Alternatively, if the base station determines the value of K and configures it to the terminal, the terminal receives the value of K, in which case the value of K may not be included in the CSI report.

[0098] In some embodiments, the CSI report may further include the number of reference signal resources included in each reference signal resource region, such as N1, N2, ... NK. The number of reference signal resources in the kth reference signal resource region may be Nk, where k=1, 2, ...K.

[0099] The sum of the number of reference signal resources in the above K reference signal resource areas is equal to N, that is, In one example, the number of reference signal resources in K-1 reference signal resource regions may be reported, and the number of reference signal resources in one reference signal resource region that is not reported may be determined in combination with the value of N. For example, the first reference signal resource region, the last reference signal resource region, or other possible reference signal resource regions may not be reported.

[0100] For example, as shown in FIG5 , the number M of reference signal resources included in the reference signal resource set configured for channel measurement is 16, which is indicated as 0-15, and the solid circle represents the reference information resource to be reported. In addition, the number N of reference signal resources that the terminal needs to report is 7. The number N1 of reference signal resources in the first reference resource area is 3, and the indication of the starting reference signal resource 51 in the first reference resource area is "0010". The number N2 of reference signal resources in the second reference resource area is 4, and the indication of the starting reference signal resource 52 in the second reference resource area is "1010".

[0101] In addition, the CSI report includes a second indication, that is, a maximum RSRP / SINR is reported in an absolute value manner, and other RSRP / SINRs are reported in a differential manner, so that the strongest beam position indication, that is, the reference signal resource 53 corresponding to the second indication, occupies a bit length of or Represented as "0100" or "010" respectively.

[0102] Alternatively, as shown in Figure 6, the number M of reference signal resources included in the reference signal resource set configured for channel measurement is 16, with the indication ranging from 0 to 15, and the solid circle represents the reference information resources that need to be reported. Furthermore, the number N of reference signal resources that the terminal needs to report is 7. The number N1 of reference signal resources in the first reference resource region is 3. The number N2 of reference signal resources in the second reference resource region is 4.

[0103] In addition, the CSI report includes a third indication, that is, the maximum RSRP / SINR in each area is reported in an absolute value manner, and the other RSRP / SINRs are reported in a differential manner. Therefore, the strongest beam position indication in the first reference signal resource area, that is, the reference signal resource 61 corresponding to the third indication, occupies a bit length of or The strongest beam position indication in the second reference signal resource area is the reference signal resource 62 corresponding to the third indication, and the occupied bit length is or Represented as "1011", "10" or "01" respectively.

[0104] Implementation method 3: N reference signal resources belong to the same reference signal resource group. The partial reference signal resources include an indication of a target reference signal resource in the reference signal resource group.

[0105] That is, the CSI report may include channel quality information corresponding to N reference signal resources and an indication of a target reference signal resource in the reference signal resource group.

[0106] In some embodiments, the terminal divides the reference signal resources in the reference signal resource set into Q reference signal resource groups based on resource grouping information or preset rules. Alternatively, the base station may divide the reference signal resources in the reference signal resource set into Q reference signal resource groups based on resource grouping information or preset rules, and indicate the resource grouping information to the terminal. Q is an integer greater than 1. Thus, the reference signal resource group is one of the Q reference signal resource groups.

[0107] In an example, the resource grouping information is transmitted through radio resource control RRC signaling or media access control element MAC CE signaling or downlink control information DCI.

[0108] In some embodiments, the target reference signal resource is any one of the following: a reference signal resource with the minimum indication or the maximum indication in a reference signal resource group, a reference signal resource with the maximum indication in a reference signal resource group, a reference signal resource with the minimum indication in a reference signal resource group, a reference signal resource with the maximum channel quality information in a reference signal resource group, and a reference signal resource with the maximum channel quality information among N reference signal resources.

[0109] Thus, the indication of the target reference signal resource in the reference signal resource group may be an identifier of a reference signal resource in the resource group. For example, the identifier of the reference signal resource indicating the minimum or the maximum, or the identifier of the reference signal resource with the minimum / maximum indication. In this way, since the reference signal resources in the reference signal resource group are interrelated, all reference signal resources in the resource group may be indicated by the identifier of the reference signal resource indicating the minimum or the maximum, or the identifier of the reference signal resource with the minimum / maximum indication.

[0110] It should be noted that the base station may divide all reference signal resources in the configured reference signal resource set into Q reference signal resource groups, and indicate the resource grouping information to the terminal through RRC / MAC CE / DCI signaling. Alternatively, the terminal may divide all reference signal resources in the configured reference signal resource set into Q reference signal resource groups according to certain rules. For example, each continuous fixed number of resources may be converted into a reference signal resource group. The reference signal resource groups may be as shown in FIG7 , such as group 1, group 2, group 3, group 4, and group 5 in FIG7 . Thus, the beams carried by all resources in each resource group are considered to be correlated with each other, and therefore the corresponding measurement results need to be reported to the base station at the same time, or not reported to the base station at the same time. Furthermore, the indication of the target reference signal resource in the reference signal resource group may be used to indicate all reference signal resources in the resource group, thereby reducing the reporting overhead.

[0111] In some embodiments, the channel quality information in the CSI report may be RSRP, SINR, RSRQ, CQI or other possible information.

[0112] In some embodiments, the CSI report further includes at least one of the following: a group indication of a reference signal resource group, a value of N, and a fourth indication.

[0113] The reference signal resource group group indicator is used to identify the reported reference signal resource group and the corresponding reference signal resource. The indicator length can be Q represents the total number of resource groups.

[0114] In addition, the value of N is the number of reference signal resources that need to be reported determined by the terminal.

[0115] In one example, if the terminal determines N reference signal resources to be reported, the value of N may be included in the CSI report. In another example, if the base station determines the value of N and configures it to the terminal, the terminal receives the value of N. In this case, the CSI report may not include the value of N.

[0116] Furthermore, the fourth indication is used to indicate the reference signal resource with the largest channel quality information among the N reference signal resources. Therefore, the fourth indication can be called the strongest beam position indication.

[0117] Exemplarily, the bit length occupied by the fourth indication may be or It should be understood that when the terminal reports in a differential manner, it can additionally indicate the beam position corresponding to the maximum RSRP / SINR. Furthermore, the terminal can report a maximum RSRP / SINR in an absolute value manner and report other RSRP / SINRs in a differential manner.

[0118] In one example, the fourth indication may be an indication of the reference signal resource corresponding to the strongest beam position. That is, the reference signal resource indication may be used to indicate the strongest beam position. In this case, the fourth indication occupies a bit length of

[0119] In another example, the fourth indication may also directly indicate the reference signal resource corresponding to the maximum RSRP / SINR. That is, it may directly indicate the reference signal resource with the largest measured RSRP / SINR among the reported N reference signal resources. In this case, the bit length occupied by the fourth indication may be

[0120] Implementation 4: N reference signal resources belong to G reference signal resource groups. The partial reference signal resources include indications of target reference signal resources of each of the G reference signal resource groups, where G is a positive integer.

[0121] That is, the CSI report may include channel quality information corresponding to the N reference signal resources and an indication of the target reference signal resource of each of the G reference signal resource groups in the N reference signal resources.

[0122] In some embodiments, the terminal divides the reference signal resources in the reference signal resource set into Q reference signal resource groups based on resource grouping information or preset rules. Alternatively, the base station may divide the reference signal resources in the reference signal resource set into Q reference signal resource groups based on resource grouping information or preset rules, and indicate the resource grouping information to the terminal. Q is an integer greater than 1. Thus, the G reference signal resource groups described above belong to Q reference signal resource groups, where G is less than or equal to Q.

[0123] In some embodiments, the target reference signal resource is a reference signal resource indicating a minimum or a reference signal resource indicating a maximum in the reference signal resource group, a reference signal resource indicating a maximum, or a reference signal resource indicating a minimum.

[0124] Thus, the indication of the target reference signal resource for each of the G reference signal resource groups is the identifier of a reference signal resource in each reference signal resource group. For example, the reference signal resource identifier at the starting position in each reference signal resource group is, for example, an identifier indicating the minimum or maximum reference signal resource, or an identifier of a reference signal resource with a minimum / maximum indication. In this way, because the reference signal resources in a reference signal resource group are interrelated, the reference signal resource identifier at the starting position can be used to indicate all reference signal resources within each reference signal resource group.

[0125] In some embodiments, the channel quality information in the CSI report may be RSRP, SINR, RSRQ, CQI or other possible information.

[0126] In some embodiments, the CSI report further includes at least one of the following: the value of G, the value of N, the group indication of each of the G reference signal resource groups, the number of reference signal resources contained in each of the G reference signal resource groups, a fifth indication, and G sixth indications.

[0127] The value of G is the number of reference signal resource groups that need to be reported. For example, if the value of G is configured by the base station to the terminal, the CSI report may not include the value of G, i.e., it does not need to report the value of G. Alternatively, the value of G can be determined by the terminal, in which case the CSI report may include the value of G, i.e., it may report the value of G.

[0128] In addition, the fifth indication is used to indicate the reference signal resource with the largest channel quality information among the N reference signal resources.

[0129] Furthermore, each of the G sixth indications corresponds to a reference signal resource group, and the sixth indication is used to indicate the reference signal resource with the maximum channel quality information in the corresponding reference signal resource group. Furthermore, the terminal can report the maximum RSRP / SINR using an absolute value and report other RSRP / SINRs using differential values.

[0130] Exemplarily, multiple larger RSRP / SINRs may be reported in absolute value format, while other RSRP / SINRs may be reported in differential format. That is, for each reference signal resource group, the largest RSRP / SINR in the reference signal resource group may be determined and reported in absolute value format, while other RSRP / SINRs may be reported in differential format. In some embodiments, for a reference signal resource group having only one reference signal resource, the group does not require an additional strongest beam position indication (i.e., the sixth indication described above). Alternatively, for a reference signal resource group having multiple reference signal resources, the group needs to report the strongest beam position indication (i.e., the sixth indication described above).

[0131] In one example, a sixth indication may be an indication of a reference signal resource corresponding to the strongest beam position in the reference signal resource group corresponding to the sixth indication. That is, the reference signal resource indication may be used to indicate the strongest beam position. In this case, the bit length occupied by the sixth indication may be

[0132] In another example, among the N reference signal resource indications that need to be reported, the strongest beam position in each reference signal resource group is indicated respectively. Each sixth indication occupies a bit length of

[0133] In another example, a sixth indication may also directly indicate the reference signal resource corresponding to the maximum RSRP / SINR in the reference signal resource area corresponding to the sixth indication. That is, the sixth indication may directly indicate the reference signal resource with the maximum measured RSRP / SINR in the reference signal resource area. At this time, in the kth (k=1, 2, ..., K) reference signal resource area, the bit length occupied by the sixth indication is Nk is the number of reference signal resources corresponding to the kth (k=1, 2, . . . , K) reference signal resource region.

[0134] In some embodiments, the CSI report may further include the number of reference signal resources corresponding to each of the G reference signal resource groups, which are N1, N2, ..., NG respectively.

[0135] In some embodiments, the CSI report may also include indications of multiple reference signal resource groups (e.g., indications of G reference signal resource groups). The length of each resource group indication may be Q represents the total number of resource groups.

[0136] Implementation 5: The N reference signal resources include R reference signal resource groups. Each reference signal resource group includes H reference signal resources, and the H reference signal resources are from different reference signal resource sets. The partial reference signal resources include the minimum or maximum reference signal resources corresponding to each of the H reference signal resource sets, where R and H are positive integers.

[0137] That is, the CSI report may include channel quality information corresponding to N reference signal resources, and the minimum-indicating or maximum-indicating reference signal resource corresponding to each of H reference signal resource sets among the N reference signal resources.

[0138] For example, the length of bits occupied by the indication of the minimum or maximum reference signal resource corresponding to each of the H reference signal resource sets is represents a round-up symbol, and M represents the number of reference signal resources included in the corresponding reference signal resource set.

[0139] It should be noted that in the multi-TRP / multi-user panel scenario, the terminal can use the continuous indication method to report multiple reference signal resource sets configured by the base station. At the same time, for each reference signal resource that needs to be reported, an additional group mapping relationship is reported to indicate that two or more reference signal resources / beams in the same group can be received simultaneously by the UE.

[0140] In some embodiments, the channel quality information in the CSI report may be RSRP, SINR, RSRQ, CQI or other possible information.

[0141] In some embodiments, the CSI report further includes at least one of the following: a seventh indication, a value of R, H eighth indications, and R reference signal resource mapping relationships.

[0142] The seventh indication is used to indicate the reference signal resource set to which the reference signal resource having the largest channel quality information among the N reference signal resources belongs.

[0143] Exemplarily, based on the differential reporting mechanism, the terminal may indicate the reference signal resource set in which the reference signal resource with the maximum measurement result RSRP / SINR is located. For example, if the base station configures two reference signal resource sets for measurement, the terminal may report the seventh indication as "0" to indicate that the reference signal resource with the maximum measurement result RSRP / SINR is from the first reference signal resource set, or the seventh indication as "1" to indicate that the reference signal resource with the maximum measurement result RSRP / SINR is from the second reference signal resource set.

[0144] In addition, each of the H eighth indications corresponds to a reference signal resource set. The eighth indication is used to indicate the reference signal resource with the maximum channel quality information in the reference signal resource set. Exemplarily, the terminal can report the maximum RSRP / SINR using an absolute value and report other RSRP / SINRs using differential values.

[0145] In one example, an eighth indication may be an indication of a reference signal resource corresponding to the strongest beam position in the reference signal resource set corresponding to the eighth indication. That is, the reference signal resource indication may be used to indicate the strongest beam position. In this case, the eighth indication occupies a bit length of

[0146] In another example, among the N reference signal resource indications that need to be reported, the strongest beam position in each reference signal resource set is indicated. Each eighth indication occupies a bit length of or

[0147] Furthermore, each of the R reference signal resource mapping relationships corresponds to a reference signal resource group, and the reference signal resource mapping relationship is used to determine the reference signal resources in the corresponding reference signal resource group.

[0148] It should be noted that two or more reference signal resources / beams in the same group can be received by the terminal at the same time. Therefore, the terminal needs to further indicate the corresponding reference signal resources in each group. For example, for each reference signal resource that needs to be reported in the reference signal resource set with the maximum measurement result RSRP / SINR or the first reference signal resource set / the second reference signal resource set, the additional reporting bit length is or The group mapping relationship is used to indicate another reference signal resource belonging to the same group.

[0149] In some embodiments, the CSI report may also include the number of reported reference signal resource groups. In some embodiments, the CSI report may also include indication information for indicating the reference signal resource with the highest channel quality information among the N reference signal resources. Therefore, this indication information may be referred to as the strongest beam position indication.

[0150] For example, the bit length occupied by the indication information can be or or It should be understood that when the terminal reports in a differential manner, the beam position corresponding to the maximum RSRP / SINR may be additionally indicated.

[0151] In one example, the indication information may be an indication of the reference signal resource corresponding to the strongest beam position. That is, the reference signal resource indication may be used to indicate the strongest beam position. In this case, the bit length occupied by the indication information may be

[0152] In another example, the indication information may also directly indicate the reference signal resource corresponding to the maximum RSRP / SINR. That is, it may directly indicate the reference signal resource with the largest measured RSRP / SINR among the N reference signal resources reported. In this case, the bit length occupied by the indication information may be or

[0153] Exemplarily, as shown in FIG8 , the base station configures two reference signal resource sets for channel measurement. The number of reference signal resources M contained in each reference signal resource set is equal to 16, and the solid circle represents the reference information resource to be reported. The number of reported reference signal resources N is equal to 8, the number of reported reference signal resource groups R is equal to 4, and the number of reference signal resources contained in each group is 2. The indication of the reference signal resource set is "0", indicating that the reference signal resource with the maximum measurement result RSRP / SINR comes from the first reference signal resource set. The strongest beam position indication is used to indicate the third reference signal resource of the first reference signal resource set, that is, reference signal resource 81, and the indication occupies a bit length of or The minimum reference signal resource indicator corresponding to the first reference signal resource set is "0010", and the minimum reference signal resource indicator corresponding to the second reference signal resource set is "0011".

[0154] In addition, the first reference signal resource group is {the first reporting beam of resource set 1, the second reporting beam of resource set 2}, and the group mapping indication, that is, the reference signal resource mapping relationship, can be "01". The second reference signal resource group is {the second reporting beam of resource set 1, the fourth reporting beam of resource set 2}, and the group mapping indication can be "11". The third reference signal resource group is {the third reporting beam of resource set 1, the first reporting beam of resource set 2}, and the group mapping indication is "00". The fourth reference signal resource group is {the fourth reporting beam of resource set 1, the third reporting beam of resource set 2}, and the group mapping indication is "10".

[0155] S102. Send a CSI report.

[0156] Based on the technical solution provided in the present disclosure, the regional concentration characteristics of the reporting beam can be utilized to report only the indications of some reference signal resources among N reference signal resources, so as to describe one or more beam concentration areas that need to be reported through the starting position (such as the position indicating the minimum or the position indicating the maximum) and the length of the reference signal resource indication. In this way, the reference signal resource indication in the channel state information report can be reduced, thereby reducing the overhead of transmitting the channel state information report.

[0157] In addition, the present disclosure also provides information that can be included in the channel state information report in single-area, multi-area, resource grouping and multi-TRP / multi-user panel scenarios to more accurately describe the beams that need to be reported and improve reporting accuracy.

[0158] In some embodiments, the present disclosure further provides a method for receiving channel state information. As shown in FIG9 , the receiving method includes the following steps.

[0159] S201. Receive a CSI report, where the CSI report includes channel quality information corresponding to N reference signal resources and an indication of some reference signal resources among the N reference signal resources, where N is a positive integer.

[0160] In one implementation, the indications of the N reference signal resources are continuous, and the partial reference signal resources include the reference signal resource with the smallest indication or the largest indication among the N reference signal resources.

[0161] In some embodiments, the CSI report further includes at least one of the following: a value of N, and a first indication.

[0162] The first indication is used to indicate the reference signal resource with the maximum channel quality information among the N reference signal resources.

[0163] In some embodiments, the bit length of the first indication is or M is the number of reference signal resources included in the reference signal resource set used for channel measurement, Indicates the round-up symbol.

[0164] In another implementation, N reference signal resources are divided into K reference signal resource regions. The indications of the reference signal resources in each reference signal resource region are continuous, and the partial reference signal resources include the starting reference signal resources of each of the K reference signal resource regions, where K is a positive integer less than or equal to N.

[0165] In some embodiments, the CSI report also includes at least one of the following: the value of N, the value of K, the number of reference signal resources contained in each of the K reference signal resource areas, a second indication, and K third indications; the second indication is used to indicate the reference signal resource with the largest channel quality information among the N reference signal resources; the K third indications each correspond to a reference signal resource area, and the third indication is used to indicate the reference signal resource with the largest channel quality information in the corresponding reference signal resource area.

[0166] In yet another implementation, the N reference signal resources belong to the same reference signal resource group, and some of the reference signal resources include target reference signal resources in the reference signal resource group.

[0167] In some embodiments, the CSI report further includes at least one of the following: a group indication of a reference signal resource group, a value of N, and a fourth indication.

[0168] The fourth indication is used to indicate the reference signal resource with the maximum channel quality information among the N reference signal resources.

[0169] In yet another implementation, the N reference signal resources belong to G reference signal resource groups, the partial reference signal resources include indications of target reference signal resources in the G reference signal resource groups, and G is a positive integer.

[0170] In some embodiments, the CSI report further includes at least one of the following: the value of G, the value of N, the group indication of each of the G reference signal resource groups, the number of reference signal resources contained in each of the G reference signal resource groups, a fifth indication, and G sixth indications.

[0171] The fifth indication is used to indicate the reference signal resource with the largest channel quality information among the N reference signal resources. The G sixth indications each correspond to a reference signal resource group, and the sixth indication is used to indicate the reference signal resource with the largest channel quality information among the corresponding reference signal resource group.

[0172] In some embodiments, the target reference signal resource is any one of the following: a reference signal resource with the minimum indication or the maximum indication in a reference signal resource group, a reference signal resource with the maximum indication in a reference signal resource group, a reference signal resource with the minimum indication in a reference signal resource group, a reference signal resource with the maximum channel quality information in a reference signal resource group, and a reference signal resource with the maximum channel quality information among N reference signal resources.

[0173] In some embodiments, before receiving the CSI report, the base station may further divide the reference signal resources in the reference signal resource set into Q reference signal resource groups, where Q is an integer greater than 1, and send resource grouping information of the Q reference signal resource groups.

[0174] In some embodiments, resource grouping information is indicated through RRC signaling, MAC CE signaling, or DCI.

[0175] In another implementation, N reference signal resources belong to R reference signal resource groups, each reference signal resource group includes H reference signal resources, the H reference signal resources come from different reference signal resource sets, and the partial reference signal resources include the minimum-indicating or maximum-indicating reference signal resources corresponding to each of the H reference signal resource sets, where R and H are positive integers.

[0176] In some embodiments, the CSI report further includes at least one of the following: a seventh indication, a value of R, H eighth indications, and R reference signal resource mapping relationships.

[0177] The seventh indication is used to indicate the reference signal resource set to which the reference signal resource with the highest channel quality information among the N reference signal resources belongs. The H eighth indications each correspond to a reference signal resource set, and the eighth indication is used to indicate the reference signal resource with the highest channel quality information within the reference signal resource set. The R reference signal resource mapping relationships each correspond to a reference signal resource group, and the reference signal resource mapping relationship is used to determine the reference signal resources in the corresponding reference signal resource group.

[0178] In some embodiments, the channel quality information includes at least one of the following: reference signal received power (RSRP), signal to interference plus noise ratio (SINR), reference signal received quality (RSRP), and channel quality indicator (CQI).

[0179] For detailed description of S201 , please refer to the relevant descriptions in S101 to S102 above, which will not be repeated here.

[0180] The above mainly introduces the solution provided by the present disclosure from the perspective of the interaction between each communication node. It is understandable that, in order to implement the above functions, each communication node includes a hardware structure and / or software module corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the algorithm steps of each example described in the embodiments disclosed herein, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software-driven hardware manner depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0181] FIG10 is a schematic diagram showing the composition of a communication device provided by an embodiment of the present disclosure. As shown in FIG10 , the communication device 100 includes a processing module 1001 and a sending module 1002 .

[0182] In some embodiments, a processing module 1001 is configured to obtain a CSI report based on a measurement of channel state information (CSI). A sending module 1002 is configured to send the CSI report, where the CSI report includes channel quality information corresponding to N reference signal resources and an indication of a portion of the N reference signal resources, where N is a positive integer.

[0183] In some embodiments, the indications of the N reference signal resources are continuous, and the partial reference signal resources include the reference signal resource with the smallest indication or the largest indication among the N reference signal resources.

[0184] In some embodiments, the CSI report further includes at least one of the following: a value of N, a first indication; the first indication is used to indicate the reference signal resource with the largest channel quality information among the N reference signal resources. The bit length of the first indication is or M is the number of reference signal resources included in the reference signal resource set used for channel measurement, Indicates the round-up symbol.

[0185] In some embodiments, N reference signal resources are divided into K reference signal resource areas, the indication of the reference signal resources in each reference signal resource area is continuous, and the partial reference signal resources include the starting reference signal resources of each of the K reference signal resource areas, where K is a positive integer less than or equal to N.

[0186] In some embodiments, the CSI report also includes at least one of the following: the value of N, the value of K, the number of reference signal resources contained in each of the K reference signal resource areas, a second indication, and K third indications; the second indication is used to indicate the reference signal resource with the largest channel quality information among the N reference signal resources; the K third indications each correspond to a reference signal resource area, and the third indication is used to indicate the reference signal resource with the largest channel quality information in the corresponding reference signal resource area.

[0187] In some embodiments, the N reference signal resources belong to the same reference signal resource group, and some of the reference signal resources include target reference signal resources in the reference signal resource group.

[0188] In some embodiments, the CSI report further includes at least one of the following: a group indication of a reference signal resource group, a value of N, and a fourth indication; the fourth indication is used to indicate a reference signal resource having the largest channel quality information among the N reference signal resources.

[0189] In some embodiments, the N reference signal resources belong to G reference signal resource groups, the partial reference signal resources include an indication of a target reference signal resource in the G reference signal resource groups, and G is a positive integer.

[0190] In some embodiments, the CSI report also includes at least one of the following: the value of G, the value of N, the group indication of each of the G reference signal resource groups, the number of reference signal resources contained in each of the G reference signal resource groups, a fifth indication, and G sixth indications; the fifth indication is used to indicate the reference signal resource with the largest channel quality information among the N reference signal resources; the G sixth indications each correspond to a reference signal resource group, and the sixth indication is used to indicate the reference signal resource with the largest channel quality information in the corresponding reference signal resource group.

[0191] In some embodiments, the target reference signal resource is any one of the following: a reference signal resource with the largest indication in a reference signal resource group, a reference signal resource with the smallest indication, a reference signal resource with the largest channel quality information, or a reference signal resource with the largest channel quality information among N reference signal resources.

[0192] In some embodiments, the processing module 1001 is further configured to divide the reference signal resources in the reference signal resource set into Q reference signal resource groups according to resource grouping information or a preset rule, where Q is an integer greater than 1. In some embodiments, the resource grouping information is indicated via radio resource control (RRC) signaling, media access control (MAC) control element (CE) signaling, or downlink control information (DCI).

[0193] In some embodiments, N reference signal resources belong to R reference signal resource groups, each reference signal resource group includes H reference signal resources, the H reference signal resources come from different reference signal resource sets, and some reference signal resources include the minimum-indicating or maximum-indicating reference signal resources corresponding to each of the H reference signal resource sets, where R and H are positive integers.

[0194] In some embodiments, the CSI report also includes at least one of the following: a seventh indication, a value of R, H eighth indications, and R reference signal resource mapping relationships; the seventh indication is used to indicate the reference signal resource set to which the reference signal resource with the largest channel quality information among the N reference signal resources belongs; the H eighth indications each correspond to a reference signal resource set, and the eighth indication is used to indicate the reference signal resource with the largest channel quality information in the reference signal resource set; the R reference signal resource mapping relationships each correspond to a reference signal resource group, and the reference signal resource mapping relationships are used to determine the reference signal resources in the corresponding reference signal resource group.

[0195] In some embodiments, the channel quality information includes at least one of the following: reference signal received power RSRP, signal to interference plus noise ratio SINR, reference signal received quality RSRQ, and channel quality indicator CQI.

[0196] For a more detailed description of the processing module 1001 and the sending module 1002, a more detailed description of each technical feature, and a description of the beneficial effects, etc., please refer to the corresponding method embodiment section above, which will not be repeated here.

[0197] FIG11 is a schematic diagram showing the composition of a communication device provided by an embodiment of the present disclosure. As shown in FIG11 , the communication device 110 includes a receiving module 1101 , a processing module 1102 , and a sending module 1103 .

[0198] In some embodiments, the receiving module 1101 is configured to receive a CSI report, where the CSI report includes channel quality information corresponding to N reference signal resources and an indication of some reference signal resources among the N reference signal resources, where N is a positive integer.

[0199] In some embodiments, the indications of the N reference signal resources are continuous, and the partial reference signal resources include the reference signal resource with the smallest indication or the largest indication among the N reference signal resources.

[0200] In some embodiments, the CSI report further includes at least one of the following: a value of N, a first indication; the first indication is used to indicate the reference signal resource with the largest channel quality information among the N reference signal resources. The bit length of the first indication is or M is the number of reference signal resources included in the reference signal resource set used for channel measurement, Indicates the round-up symbol.

[0201] In some embodiments, N reference signal resources are divided into K reference signal resource areas, the indication of the reference signal resources in each reference signal resource area is continuous, and the partial reference signal resources include the starting reference signal resources of each of the K reference signal resource areas, where K is a positive integer less than or equal to N.

[0202] In some embodiments, the CSI report also includes at least one of the following: the value of N, the value of K, the number of reference signal resources contained in each of the K reference signal resource areas, a second indication, and K third indications; the second indication is used to indicate the reference signal resource with the largest channel quality information among the N reference signal resources; the K third indications each correspond to a reference signal resource area, and the third indication is used to indicate the reference signal resource with the largest channel quality information in the corresponding reference signal resource area.

[0203] In some embodiments, the N reference signal resources belong to the same reference signal resource group, and some of the reference signal resources include target reference signal resources in the reference signal resource group.

[0204] In some embodiments, the CSI report further includes at least one of the following: a group indication of a reference signal resource group, a value of N, and a fourth indication; the fourth indication is used to indicate a reference signal resource having the largest channel quality information among the N reference signal resources.

[0205] In some embodiments, the N reference signal resources belong to G reference signal resource groups, the partial reference signal resources include an indication of a target reference signal resource in the G reference signal resource groups, and G is a positive integer.

[0206] In some embodiments, the CSI report also includes at least one of the following: the value of G, the value of N, the group indication of each of the G reference signal resource groups, the number of reference signal resources contained in each of the G reference signal resource groups, a fifth indication, and G sixth indications; the fifth indication is used to indicate the reference signal resource with the largest channel quality information among the N reference signal resources; the G sixth indications each correspond to a reference signal resource group, and the sixth indication is used to indicate the reference signal resource with the largest channel quality information in the corresponding reference signal resource group.

[0207] In some embodiments, the target reference signal resource is any one of the following: a reference signal resource with the largest indication in a reference signal resource group, a reference signal resource with the smallest indication, a reference signal resource with the largest channel quality information, or a reference signal resource with the largest channel quality information among N reference signal resources.

[0208] In some embodiments, the processing module 1102 is configured to divide the reference signal resources in the reference signal resource set into Q reference signal resource groups according to resource grouping information or a preset rule, where Q is an integer greater than 1, and the sending module 1103 is configured to send resource grouping information for the Q reference signal resource groups. In some embodiments, the resource grouping information is indicated via radio resource control (RRC) signaling, access control layer control element (MAC CE) signaling, or downlink control information (DCI).

[0209] In some embodiments, N reference signal resources belong to R reference signal resource groups, each reference signal resource group includes H reference signal resources, the H reference signal resources come from different reference signal resource sets, and some reference signal resources include the minimum-indicating or maximum-indicating reference signal resources corresponding to each of the H reference signal resource sets, where R and H are positive integers.

[0210] In some embodiments, the CSI report also includes at least one of the following: a seventh indication, a value of R, H eighth indications, and R reference signal resource mapping relationships; the seventh indication is used to indicate the reference signal resource set to which the reference signal resource with the largest channel quality information among the N reference signal resources belongs; the H eighth indications each correspond to a reference signal resource set, and the eighth indication is used to indicate the reference signal resource with the largest channel quality information in the reference signal resource set; the R reference signal resource mapping relationships each correspond to a reference signal resource group, and the reference signal resource mapping relationships are used to determine the reference signal resources in the corresponding reference signal resource group.

[0211] In some embodiments, the channel quality information includes at least one of the following: reference signal received power RSRP, signal to interference plus noise ratio SINR, reference signal received quality RSRQ, and channel quality indicator CQI.

[0212] For a more detailed description of the above-mentioned receiving module 1101, processing module 1102 and sending module 1103, as well as a more detailed description of each technical feature and a description of the beneficial effects, please refer to the above-mentioned corresponding method embodiment part, which will not be repeated here.

[0213] It should be noted that the modules in FIG10 or FIG11 may also be referred to as units. For example, the sending module may be referred to as a sending unit. In addition, in the embodiment shown in FIG10 or FIG11 , the names of the modules may not be those shown in the figure. For example, the sending module may be referred to as a communication module, and the receiving module may be referred to as a communication module.

[0214] If the various units or modules in Figure 10 or Figure 11 are implemented in the form of software functional modules 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 embodiment of the present disclosure is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the various embodiments of the present disclosure. The storage medium for storing computer software products includes various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0215] In the case of implementing the functions of the above-mentioned integrated modules in hardware, an embodiment of the present disclosure provides a schematic structural diagram of a communication device, which may be the above-mentioned communication device 100 or communication device 110. As shown in Figure 12, the communication device 120 includes: a processor 1202, a communication interface 1203, and a bus 1204. In some embodiments, the communication device 120 may also include a memory 1201.

[0216] Processor 1202 may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the contents of this disclosure. Processor 1202 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Processor 1202 may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the contents of this disclosure. Processor 1202 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0217] The communication interface 1203 is used to connect to other devices via a communication network, such as Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0218] The memory 1201 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0219] As an implementation, the memory 1201 may exist independently of the processor 1202. The memory 1201 may be connected to the processor 1202 via a bus 1204 and used to store instructions or program codes. When the processor 1202 calls and executes the instructions or program codes stored in the memory 1201, the information processing method determination method provided in the embodiments of the present disclosure can be implemented.

[0220] In another implementation, the memory 1201 may also be integrated with the processor 1202 .

[0221] Bus 1204 can be an Extended Industry Standard Architecture (EISA) bus, etc. Bus 1204 can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, FIG12 shows only one thick line, but this does not mean that there is only one bus or only one type of bus.

[0222] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional modules as needed, that is, the internal structure of the equipment or device is divided into different functional modules to complete all or part of the functions described above.

[0223] The present disclosure also provides a computer-readable storage medium. All or part of the processes in the above-mentioned method embodiments can be completed by computer instructions to instruct the relevant hardware, and the program can be stored in the above-mentioned computer-readable storage medium. When the program is executed, it may include the processes of the above-mentioned method embodiments. The computer-readable storage medium can be the memory of any of the above-mentioned embodiments. The above-mentioned computer-readable storage medium can also be an external storage device of the above-mentioned device or apparatus, such as a plug-in hard disk, a smart memory card (smart media card, SMC), a secure digital (secure digital, SD) card, a flash card (flash card), etc. equipped on the above-mentioned device or apparatus. Further, the above-mentioned computer-readable storage medium can also include both the internal storage unit of the above-mentioned device or apparatus and an external storage device. The above-mentioned computer-readable storage medium is used to store the above-mentioned computer program and other programs and data required by the above-mentioned device or apparatus. The above-mentioned computer-readable storage medium can also be used to temporarily store data that has been output or is to be output. The readable storage medium includes a non-transitory computer-readable storage medium.

[0224] The embodiments of the present disclosure further provide a computer program product, which includes a computer program. When the computer program product is run on a computer, the computer is enabled to execute any one of the methods provided in the above embodiments.

[0225] Although the present disclosure is described herein in conjunction with various embodiments, in the process of implementing the disclosure for which protection is sought, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple components. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0226] Although the present disclosure has been described in conjunction with features and embodiments thereof, it will be apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present disclosure. Accordingly, this specification and the drawings are merely illustrative of the present disclosure as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present disclosure. Obviously, those skilled in the art may make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, the present disclosure is intended to encompass such modifications and variations as would fall within the scope of the claims of the present disclosure and their equivalents.

[0227] The above is only a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or replacements within the technical scope disclosed in the present disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A method for sending channel state information, comprising: Based on the measurement of channel state information CSI, a CSI report is obtained; The CSI report is sent, where the CSI report includes channel quality information corresponding to N reference signal resources and an indication of some reference signal resources among the N reference signal resources, where N is a positive integer.

2. The method according to claim 1, wherein: The indications of the N reference signal resources are continuous, and the part of the reference signal resources includes the reference signal resource with the smallest indication or the largest indication among the N reference signal resources.

3. The method according to claim 1, wherein: The CSI report also includes at least one of the following: a value of N and a first indication; wherein the first indication is used to indicate a reference signal resource having the largest channel quality information among the N reference signal resources.

4. The method according to claim 3, wherein: The bit length of the first indication is or Wherein, M is the number of reference signal resources included in the reference signal resource set used for channel measurement, Indicates the round-up symbol.

5. The method according to claim 1, wherein: The N reference signal resources are divided into K reference signal resource areas, the indication of the reference signal resources in each of the K reference signal resource areas is continuous, the partial reference signal resources include the indicated minimum or indicated maximum reference signal resources of each of the K reference signal resource areas, and K is a positive integer less than or equal to N.

6. The method according to claim 5, wherein: The CSI report also includes at least one of the following: the value of N, the value of K, the number of reference signal resources contained in each of the K reference signal resource areas, a second indication, and K third indications; wherein the second indication is used to indicate the reference signal resource with the largest channel quality information among the N reference signal resources; the K third indications each correspond to a reference signal resource area, and the third indication is used to indicate the reference signal resource with the largest channel quality information in the corresponding reference signal resource area.

7. The method according to claim 1, wherein: The N reference signal resources belong to the same reference signal resource group, and the part of the reference signal resources includes the target reference signal resources in the reference signal resource group.

8. The method according to claim 7, wherein: The CSI report also includes at least one of the following: a group indication of the reference signal resource group, a value of N, and a fourth indication; wherein the fourth indication is used to indicate a reference signal resource having the largest channel quality information among the N reference signal resources.

9. The method according to claim 1, wherein: The N reference signal resources belong to G reference signal resource groups, the partial reference signal resources include indications of target reference signal resources in the G reference signal resource groups, and G is a positive integer.

10. The method according to claim 9, wherein: The CSI report also includes at least one of the following: a value of G, a value of N, a group indication of each of the G reference signal resource groups, the number of reference signal resources contained in each of the G reference signal resource groups, a fifth indication, and G sixth indications; wherein the fifth indication is used to indicate a reference signal resource having the largest channel quality information among the N reference signal resources; the G sixth indications each correspond to a reference signal resource group, and the sixth indication is used to indicate a reference signal resource having the largest channel quality information in the corresponding reference signal resource group.

11. The method according to claim 7 or 9, wherein: The target reference signal resource is any one of the following: a reference signal resource with the largest indication in the reference signal resource group, a reference signal resource with the smallest indication, a reference signal resource with the largest channel quality information in the reference signal resource group, and a reference signal resource with the largest channel quality information among the N reference signal resources.

12. The method according to claim 7 or 9, further comprising: According to resource grouping information or preset rules, the reference signal resources in the reference signal resource set are divided into Q reference signal resource groups, where Q is an integer greater than 1.

13. The method according to claim 12, wherein: The resource grouping information is indicated by radio resource control RRC signaling or media access control element MAC CE signaling or downlink control information DCI.

14. The method according to claim 1, wherein: The N reference signal resources include R reference signal resource groups, each of the R reference signal resource groups includes H reference signal resources, the H reference signal resources are from different reference signal resource sets, the partial reference signal resources include the minimum indicating or the maximum indicating reference signal resource corresponding to each of the H reference signal resource sets, and R and H are positive integers.

15. The method according to claim 14, wherein: The CSI report also includes at least one of the following: a seventh indication, a value of R, H eighth indications, and R reference signal resource mapping relationships; wherein the seventh indication is used to indicate the reference signal resource set to which the reference signal resource with the largest channel quality information among the N reference signal resources belongs; the H eighth indications each correspond to a reference signal resource set, and the eighth indication is used to indicate the reference signal resource with the largest channel quality information in the reference signal resource set; the R reference signal resource mapping relationships each correspond to a reference signal resource group, and the reference signal resource mapping relationships are used to determine the reference signal resources in the corresponding reference signal resource group.

16. The method according to claim 1, wherein: The channel quality information includes at least one of the following: Reference signal received power RSRP, signal to interference and noise ratio SINR, reference signal received quality RSRQ, channel quality indicator CQI.

17. A method for receiving channel state information, comprising: A CSI report is received, where the CSI report includes channel quality information corresponding to N reference signal resources and an indication of some reference signal resources among the N reference signal resources, where N is a positive integer.

18. The method according to claim 17, wherein: The indications of the N reference signal resources are continuous, and the part of the reference signal resources includes the reference signal resource with the smallest indication or the largest indication among the N reference signal resources.

19. The method according to claim 17, wherein: The CSI report also includes at least one of the following: a value of N and a first indication; wherein the first indication is used to indicate a reference signal resource having the largest channel quality information among the N reference signal resources.

20. The method according to claim 19, wherein: The bit length of the first indication is or Wherein, M is the number of reference signal resources included in the reference signal resource set used for channel measurement, Indicates the round-up symbol.

21. The method according to claim 17, wherein: The N reference signal resources are divided into K reference signal resource areas, the indication of the reference signal resources in each of the K reference signal resource areas is continuous, the partial reference signal resources include the reference signal resources with the minimum indication or the maximum indication of each of the K reference signal resource areas, and K is a positive integer less than or equal to N.

22. The method according to claim 21, wherein: The CSI report also includes at least one of the following: the value of N, the value of K, the number of reference signal resources contained in each of the K reference signal resource areas, a second indication, and K third indications; wherein the second indication is used to indicate the reference signal resource with the largest channel quality information among the N reference signal resources; the K third indications each correspond to a reference signal resource area, and the third indication is used to indicate the reference signal resource with the largest channel quality information in the corresponding reference signal resource area.

23. The method according to claim 17, wherein: The N reference signal resources belong to the same reference signal resource group, and the part of the reference signal resources includes the target reference signal resources in the reference signal resource group.

24. The method according to claim 23, wherein: The CSI report also includes at least one of the following: a group indication of the reference signal resource group, a value of N, and a fourth indication; wherein the fourth indication is used to indicate a reference signal resource having the largest channel quality information among the N reference signal resources.

25. The method of claim 17, wherein: The N reference signal resources belong to G reference signal resource groups, the partial reference signal resources include indications of target reference signal resources in the G reference signal resource groups, and G is a positive integer.

26. The method according to claim 25, wherein: The CSI report also includes at least one of the following: a value of G, a value of N, a group indication of each of the G reference signal resource groups, a number of reference signal resources contained in each of the G reference signal resource groups, a fifth indication, and G sixth indications; wherein the fifth indication is used to indicate a reference signal resource having the largest channel quality information among the N reference signal resources; the G sixth indications each correspond to a reference signal resource group, and the sixth indication is used to indicate a reference signal resource having the largest channel quality information in the corresponding reference signal resource group.

27. The method according to claim 23 or 25, wherein: The target reference signal resource is any one of the following: a reference signal resource with the largest indication in the reference signal resource group, a reference signal resource with the smallest indication, a reference signal resource with the largest channel quality information in the reference signal resource group, and a reference signal resource with the largest channel quality information among the N reference signal resources.

28. The method according to claim 23 or 25, wherein: Before receiving the CSI report, the method further includes: Dividing the reference signal resources in the reference signal resource set into Q reference signal resource groups, where Q is an integer greater than 1; Send resource grouping information of the Q reference signal resource groups.

29. The method according to claim 28, wherein: The resource grouping information is indicated through RRC signaling or MAC CE signaling or DCI.

30. The method of claim 17, wherein: The N reference signal resources include R reference signal resource groups, each of the R reference signal resource groups includes H reference signal resources, the H reference signal resources are from different reference signal resource sets, the partial reference signal resources include the minimum indicating or the maximum indicating reference signal resource corresponding to each of the H reference signal resource sets, and R and H are positive integers.

31. The method according to claim 30, wherein: The CSI report also includes at least one of the following: a seventh indication, a value of R, H eighth indications, and R reference signal resource mapping relationships; wherein the seventh indication is used to indicate the reference signal resource set to which the reference signal resource with the largest channel quality information among the N reference signal resources belongs; the H eighth indications each correspond to a reference signal resource set, and the eighth indication is used to indicate the reference signal resource with the largest channel quality information in the reference signal resource set; the R reference signal resource mapping relationships each correspond to a reference signal resource group, and the reference signal resource mapping relationships are used to determine the reference signal resources in the corresponding reference signal resource group.

32. The method of claim 17, wherein: The channel quality information includes at least one of the following: Reference signal received power RSRP, signal to interference and noise ratio SINR, reference signal received quality RSRQ, channel quality indicator CQI.

33. A communication device, comprising: Memory and processor; The memory is coupled to the processor; The memory is used to store instructions executable by the processor; When the processor executes the instructions, the method according to any one of claims 1 to 32 is performed.

34. A computer-readable storage medium, wherein: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a communication device, the communication device is caused to perform the method according to any one of claims 1 to 32.

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