CN117955596A

CN117955596A - Method, device and storage medium for transmitting and receiving channel state information

Info

Publication number: CN117955596A
Application number: CN202311294965.1A
Authority: CN
Inventors: 刘文丰; 鲁照华; 肖华华; 李伦; 高波
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-04-30

Abstract

The embodiment of the disclosure provides a method and a device for sending and receiving channel state information and a storage medium, relates to the technical field of communication, and is used for reducing reporting overhead of the channel state information. The method comprises the following steps: based on measurement of Channel State Information (CSI), a CSI report is acquired, the CSI report is sent, the CSI report comprises channel quality information corresponding to N reference signal resources and indication of part of the reference signal resources in the N reference signal resources, and N is a positive integer.

Description

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

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting and receiving channel state information, and a storage medium.

Background

Currently, the multi-antenna technology has been widely used for various Radio communication technologies, such as a long term evolution (long term evolution, LTE) mobile communication network of a fourth generation mobile communication technology (4th generation mobile networks,4G), a New Radio (NR) mobile communication network of a fifth generation mobile communication technology (5th generation mobile networks,5G), and the like. There is also a great deal of attention and research in the future sixth generation mobile communication technology (6th generation mobile networks,6G).

In the multi-antenna technology of a radio communication system, beam management including beam scanning, beam tracking, beam restoration, and the like is required. In the beam scanning process, the base station may configure a plurality of reference signal resources for beam measurement for the terminal, where the reference signal resources are respectively carried on different downlink transmission beams. The terminal measures these reference signals and reports the beam measurement results to the base station. When the number of the beams required to be reported by the terminal is large, large beam reporting overhead is caused.

Disclosure of Invention

The disclosure provides a method, a device and a storage medium for sending and receiving channel state information, which are used for reducing the reporting overhead of the channel state information.

In order to achieve the above purpose, the present disclosure adopts the following technical scheme:

in a first aspect, the present disclosure provides a method for transmitting channel state information, the method including:

And acquiring a CSI report based on the measurement of the Channel State Information (CSI).

And sending a CSI report, wherein the CSI report comprises channel quality information corresponding to N reference signal resources and indications of part of the reference signal resources in the N reference signal resources, and N is a positive integer.

In a second aspect, the present disclosure provides a method for receiving channel state information, the method comprising:

And receiving a CSI report, wherein the CSI report comprises channel quality information corresponding to N reference signal resources and indications of part of the reference signal resources in the N reference signal resources, and N is a positive integer.

In a third aspect, the present disclosure provides a communication apparatus comprising:

And the processing module is used for acquiring the CSI report based on the measurement of the Channel State Information (CSI).

And the sending module is used for sending a CSI report, wherein the CSI report comprises channel quality information corresponding to N reference signal resources and indications of part of the reference signal resources in the N reference signal resources, and N is a positive integer.

In a fourth aspect, the present disclosure provides another communication apparatus, comprising:

And the receiving module is used for receiving the CSI report, wherein the CSI report comprises channel quality information corresponding to N reference signal resources and indications of part of the reference signal resources in the N reference signal resources, and N is a positive integer.

In a fifth aspect, there is provided a communication apparatus comprising: a processor and a memory; the memory stores instructions executable by the processor; the processor is configured to execute instructions to cause the communication device to implement any of the methods as provided in the first to or second aspects above.

In a sixth aspect, there is provided a computer readable storage medium storing computer instructions that, when run on a computer, cause the computer to perform any one of the methods provided in the first or second aspects.

In a seventh aspect, there is provided a computer program product comprising computer instructions which, when run on a computer, cause the computer to perform any of the methods provided in the first or second aspects.

Based on the technical scheme provided by the disclosure, only the indication of part of the reference signal resources in the N reference signal resources can be reported by utilizing the region centralization characteristic of the reporting beam, so that one or more beam centralization regions required to be reported are described through the starting position (such as the position indicating the minimum or the maximum) and the length indicated by the reference signal resources, thus, the reference signal resource indication in the channel state information report can be reduced, and the cost for transmitting the channel state information report is reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain, without limitation, the disclosed embodiments.

Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the disclosure;

Fig. 2 is a flowchart of a method for transmitting channel state information according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of a reference signal resource according to an embodiment of the disclosure;

fig. 4 is a schematic diagram of another reference signal resource provided in an embodiment of the present disclosure;

Fig. 5 is a schematic diagram of another reference signal resource provided in an embodiment of the present disclosure;

fig. 6 is a schematic diagram of another reference signal resource provided by an embodiment of the present disclosure;

Fig. 7 is a schematic diagram of another reference signal resource provided by an embodiment of the present disclosure;

fig. 8 is a schematic diagram of another reference signal resource provided by an embodiment of the present disclosure;

Fig. 9 is a flowchart of a method for receiving channel state information according to an embodiment of the present disclosure;

Fig. 10 is a schematic diagram of a communication device according to an embodiment of the disclosure;

fig. 11 is a schematic diagram of another communication device according to an embodiment of the disclosure;

fig. 12 is a schematic structural diagram of a communication device according to an embodiment of the disclosure.

Detailed Description

The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.

In the description of the present disclosure, unless otherwise indicated, "/" means "or" and, for example, a/B may mean a or B. "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Furthermore, "at least one" means one or more, and "a plurality" means two or more. The terms "first," "second," and the like do not limit the number and order of execution, and the terms "first," "second," and the like do not necessarily differ.

It is noted that in this disclosure, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "e.g." should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In millimeter wave communication systems, large-scale antenna arrays are typically employed to form shaped beams with large gains to compensate for transmission loss and ensure system coverage. Meanwhile, the user equipment and the base station need to adjust the wave beams and realize accurate alignment in the initial access and data transmission process so as to ensure that the maximum gain is achieved. The third generation partnership project (3rd generation partnership project,3GPP) organises a complete set of beam management procedures for adjusting the beam direction in the high frequency band and maintaining a suitable transmit-receive beam pair, including beam scanning, beam measurement, beam reporting and beam pointing, etc.

In the beam scanning process, the base station may configure a plurality of reference signal resources for beam measurement for the terminal, including a channel state information reference signal (CHANNEL STATE infromation-REFERENCE SYMBOL, CSI-RS) or a Synchronization Signal Block (SSB), where the reference signal resources are respectively carried on different downlink transmission beams. The terminal may measure the reference signal and report the beam measurement result to the base station. The reporting parameters of the beam measurement include reference signal resource identifiers SSBRI/CRI, physical layer reference signal received power (REFERENCE SIGNAL RECEIVING power, RSRP) or physical layer signal-to-interference and noise ratio (signal to interference plus noise ratio, SINR) corresponding to one or more transmission beams selected by the terminal. When the number of the reporting 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 mode. The maximum RSRP/SINR value in the beam measurement results is selected as a reference RSRP/SINR, and the quantized result is directly reported; and reporting the differential value of other RSRP/SINR values, namely reporting the result after the differential value with the maximum RSRP/SINR value is quantized. However, the current beam reporting method needs to provide beam indication information, such as CSI-RS resource identifier, SSB number, etc., for each reporting beam, which results in larger beam reporting overhead when the reporting beam data is larger.

In view of this, the present disclosure provides a method for transmitting channel state information, the method comprising: based on measurement of Channel State Information (CSI), a CSI report is acquired, the CSI report is sent, the CSI report comprises channel quality information corresponding to N reference signal resources and indication of part of the reference signal resources in the N reference signal resources, and N is a positive integer. Therefore, the reporting cost can be reduced, and the reporting precision can be improved.

The technical solution provided by the embodiments of the present disclosure may be applied to various mobile communication networks, for example, a New Radio (NR) mobile communication network using a fifth generation mobile communication technology (5th generation mobile networks,5G), a future mobile communication network (including but not limited to various sixth generation mobile communication technologies, 6G) or various communication convergence systems, etc., which are not limited to this embodiment of the present disclosure.

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

For example, taking a network side device as a base station and a receiving side device as a terminal as an example, fig. 1 shows an architecture diagram of a communication system provided in an embodiment of the disclosure. As shown in fig. 1, communication system 10 includes a plurality of base stations (e.g., base station 201 and base station 202) and a plurality of terminals (e.g., terminal 301, terminal 302, terminal 303, and terminal 304). Wherein a plurality of base stations and a plurality of terminals can be communicatively connected. Wherein, a base station can provide network service for terminals of a cell, and can also provide network service for terminals of a plurality of cells at the same time.

In some embodiments, the base station may be a long term evolution (long term evolution, LTE), a base station or an evolved base station (evolutional node B, eNB or eNodeB) in long term evolution enhancement (long term evolution advanced, LTEA), a base station device in a 5G network, or a base station in a future communication system, etc., and the base station may include various macro base stations, micro base stations, home base stations, wireless remote, reconfigurable intelligent surfaces (reconfigurable intelligent surfaces, RISs), routers, wireless fidelity (WIRELESS FIDELITY, WIFI) devices, or various network side devices such as a primary cell (PRIMARY CELL) and a secondary cell (secondary cell).

In some embodiments, the terminal may be a device with wireless transceiving functions, which may be deployed on land, including indoor or outdoor, hand-held, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.). The terminal may be a mobile phone, a tablet (Pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal, an augmented Reality (Augmented Reality, AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (SELF DRIVING), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (SMART GRID), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (SMART CITY), a wireless terminal in smart home (smart home), etc. Embodiments of the present disclosure are not limited to application scenarios. A terminal may also be referred to as a User, user Equipment (UE), access terminal, UE unit, UE station, mobile station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent, UE device, or the like, as embodiments of the present disclosure are not limited in this respect.

In some embodiments, the indication (indicator) of a parameter, which may also be referred to as an indication (index), or an Identification (ID), is an equivalent concept among the indication, the identification, and the indication. Such as a resource identification of the wireless system, may also be referred to as a resource indication, or resource indication. Wherein the indication of the resources of the wireless system includes, but is not limited to, one of: reference signal resources, reference signal resource groups, reference signal resource configuration, channel state information (CHANNEL STATE information) reports, a CSI report set, a terminal, a base station, a panel, a neural network, a sub-neural network, a neural network layer, a precoding matrix, a beam, a transmission mode, a reception mode, a module, a model, a functional module, a function, and other corresponding instructions. The base station may indicate the identity of one or a set of resources to the terminal through various higher layer signaling or physical layer signaling. The terminal may also feed back the identity of one or a set of resources to the base station via higher layer signaling and/or physical layer signaling.

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

In some embodiments, the beams include a transmit beam, a receive beam, and a transmit beam pair, a transmit beam and a receive beam pair. In some embodiments, a beam may be understood as a resource, such as a reference signal resource, a transmit spatial filter, a receive spatial filter, a spatial reception parameter, a transmit precoding, a receive precoding, an antenna port, an antenna weight vector, an antenna weight matrix, etc. The beam index may be replaced with a resource index (e.g., a reference signal resource index) because the beam may be transmission bonded with some time-frequency code resources. The beam may also be a transmission (transmit/receive) mode; the transmission mode may include space division multiplexing, frequency/time domain diversity, beamforming, etc. In some embodiments, the beam pair includes a combination of one transmit beam and one receive beam. In some embodiments, the beam is equivalent to a beam state, quasi co-location (QCL) state, transmission configuration indication (transmission configuration indicator, TCI) state, spatial relationship (spatial relationship) information, reference signal (REFERENCE SIGNAL, RS), reference signal resources, spatial filters, precoding. In some embodiments, the transmission and reception points TRP are equivalent to reference signal ports, reference signal port groups, reference signal resources, reference signal resource sets.

In some examples, 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, where the channel state information may include at least one of: channel state information-reference Signal resource indication (CSI-RS Resource Indicator, CRI), synchronization Signal block resource indication (Synchronization Signals Block Resource Indicator, SSBRI), reference Signal received Power of Layer 1 (L1 REFERENCE SIGNAL RECEIVED Power, L1-RSRP or RSRP), differential RSRP (Differential RSRP), reference Signal-to-interference-plus-noise ratio of Layer 1 (L1 Signal-to-INTERFERENCE NOISE RATIO, L1-SINR or SINR), differential L1-SINR (DIFFERENTIAL L-SINR), reference Signal received Quality (REFERENCE SIGNAL RECEIVED Quality, RSRQ), L1-RSRQ, differential RSRQ, channel Quality indication (Channel Quality Indicator, CQI), precoding matrix indication (Precoding Matrix Indicator, PMI), layer indication (Layer Indicator, LI), rank Indicator (RI), precoding information. The precoding information includes a first type of precoding information, such as codebook-based precoding information, and the precoding matrix indication is one of the codebook-based precoding information. Precoding information also includes non-codebook based implementations. Such as the second type of precoding information. In one example, CSI including only the first type of precoding information is referred to as first type CSI, and in one example, CSI including the second type of precoding information is referred to as second type CSI.

In some embodiments, the beam parameter information is a reference signal received Power (L1 REFERENCE SIGNAL RECEIVED Power, L1-RSRP or RSRP) of layer 1 for which at least one beam corresponds, differential RSRP. In some embodiments, the beam parameter information is a reference Signal-to-interference-and-noise ratio (L1 Signal-to-INTERFERENCE NOISE RATIO, L1-SINR, or SINR) of layer 1 for at least one beam, differential SINR. In some embodiments, the beam parameter information is a 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 indication (Channel Quality Indicator, CQI). In some embodiments, the beam parameter information is a beam angle (at least one of AOA, ZOA, AOD, ZOD, etc., sometimes referred to as a horizontal angle of arrival, a vertical angle of arrival, a horizontal angle of departure, a vertical angle of departure, respectively) corresponding to the at least one beam. In some embodiments, the beam parameter information is a transmit beam index corresponding to at least one beam. In some embodiments, the beam parameter information is a receive beam index corresponding to at least one beam. In some embodiments, the beam parameter information is a transmit beam and a receive beam pair index (simply referred to as a beam pair index or beam pair) for at least one beam. In some embodiments, the beam parameter information is a beam domain received power map (Beam Domain Receive Power Map, BDRPM) for at least one beam. In some embodiments, the beam parameter information is a channel state information reference signal resource indication (CSI-RS Resource Indicator, CRI) for at least one beam. In some embodiments, the beam parameter information is a synchronization signal block resource indication (Synchronization Signals Block Resource Indicator, SSBRI) or other reference signal resource indication, such as SRSRI, for at least one beam. In some embodiments, the beam parameter information is a combination of at least two of the following beam parameter information for 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, SINR. In some embodiments, the beam parameter information is a logarithmic value or decibel value (DB) of one of RSRP, RSRQ, SINR.

In some embodiments, the beam parameter information may also be referred to as beam quality information, or channel measurements, or beam measurements, or measurements. In some examples, the beam parameter information is a subset of channel state information, that is, the beam parameter information is channel state information. The channel state information in turn belongs to the measurement parameters. In some examples, the measurement parameters, channel state information, beam parameter information all pertain to measurement results, or processing results, or generating results.

In some embodiments, channel state information is transmitted in order to be in the physical layer. The terminal and the base station define a report (e.g., CSI report or CSI report congfig), wherein the CSI report defines at least one of the following parameters: the time-frequency resource is used for feeding back the CSI, and the CSI comprises information such as report quality, a time domain category report Config Type for CSI feedback, channel measurement resources, interference measurement resources, measured bandwidth size and the like. Wherein the CSI report may be transmitted on uplink transmission resources including PUSCH and PUCCH, and the CSI report also includes time domain characteristics including periodic CSI report (periodic CSI report, P-CSI), aperiodic CSI report (aperiodic CSI report, AP-CSI), semi-persistent CSI report (semi-PERSISTENT CSI report, SP-CSI). In general, the number of bits for P-CSI transmission is relatively small, and the number of bits for A-CSI transmission is relatively large, and the number of bits for A-CSI transmission is generally transmitted on the PUSCH, and the SP-CSI can be transmitted on the PUSCH or the PUCCH. Wherein, the P-CSI based on PUCCH transmission is generally configured with higher layer signaling (radio resource control, radio Resource Control, RRC), the SP-CSI based on PUCCH transmission is also configured, activated or deactivated with higher layer signaling (RRC and/or MAC CE), and the SP-CSI based on PUSCH transmission is activated or deactivated by physical layer signaling (downlink control information, downlink control information, DCI). The a-CSI is triggered by DCI. Whereas DCI is typically transmitted on a physical downlink control channel (Physical downlink control channel, PDCCH).

In some embodiments, the base station configures NC CSI reports (CSI reports) to be fed back to the base station through higher layer signaling and/or physical layer signaling to the terminal, where each CSI report has an Identity (ID) that may be referred to as a CSI report ID, the terminal may select MC CSI reports in the NC CSI reports according to its own computing power or processing power, and the requirement of the base station, and feed back at least one CSI report in the MC CSI reports according to uplink feedback resources. Wherein NC and MC are positive integers, and MC < =nc. In some embodiments, the terminal needs to feed back MC CSI reports, but feedback resources of at least two reports in the MC reports are conflicted, where the confliction of feedback resources of the two reports refers to that at least one symbol in transmission resources (e.g. PUCCH, PUSCH) corresponding to the two reports is the same and/or at least one subcarrier is the same.

In some embodiments, the feedback CSI may also be referred to as a transmission CSI or a transmission CSI, such as by carrying channel state information on uplink transmission resources for feedback or transmission. The uplink transmission resource and the corresponding CSI are indicated by a channel state information report. In the embodiments of the present disclosure, the feedback CSI may also be referred to as transmission CSI or transmission CSI, such as carrying channel state information on uplink transmission resources for feedback or transmission. The uplink transmission resource and the corresponding CSI are indicated by a channel state information report. In one example, transmitting a CSI report refers to transmitting content indicated in the CSI report that needs to be transmitted, including but not limited to channel state information, where transmitting includes sending or receiving, and may be replaced by feedback or receiving. In one example, transmitting CSI reports refers to transmitting content indicated by CSI reports over uplink transmission resources, including but not limited to channel state information, where transmission includes sending or receiving, but may be replaced by feedback or receiving.

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

As shown in fig. 2, an embodiment of the present disclosure provides a method for transmitting channel state information, including the steps of:

S101, based on measurement of the CSI, obtaining a CSI report, wherein the CSI report comprises channel quality information corresponding to N reference signal resources and indications of part of the reference signal resources in the N reference signal resources.

Wherein N is a positive integer.

In addition, the above "indication" is used to distinguish and indicate each reference signal resource, and may also be referred to as "index", which may also be denoted as "index", "indicator", "indication", "identifier". For convenience of description, the "indication" will be taken as an example, for example, indication of the reference signal resource, indication of the maximum reference signal resource, etc.

In some embodiments, the channel quality information corresponding to the reference signal resources 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 resources may include CRI, SSBRI, SRSRI or other possible parameters. It should be appreciated that the indication of the reference signal resource corresponds one-to-one to the channel quality information.

Illustratively, a base station may send reference signal resources in a set of reference signal resources to a terminal. Accordingly, the terminal may receive and measure the reference signal resource to obtain a plurality of parameters, for example, channel quality information corresponding to the reference signal resource, an indication of the reference signal resource, and the like. And generating a CSI report based on parameters such as channel quality information corresponding to the obtained plurality of reference signal resources and indication of the reference signal resources.

For example, N CSI-RS resources and/or SSB resources may be included in the reference signal resource set. 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. Therefore, the terminal can receive and measure a plurality of CSI-RS resources and/or SSB resources to obtain channel quality information corresponding to the N reference signal resources and indications of the N reference signal resources, and further generate a CSI report.

In some embodiments, the CSI report provided in the present disclosure may include an indication of a starting reference signal resource, which may also be referred to as a reference signal resource of a starting position of the N reference signal resources, that is, the portion of the reference signal resources may be the starting reference signal resource.

Where the starting location generally refers to a location where the base station and the terminal may know in advance or have a common understanding. The starting positions include, but are not limited to: the reference signal resource indicates a minimum position, the reference signal resource indicates a maximum position, the reference signal resource indicates a centered position, a particular reference signal resource position, etc.

Illustratively, the present disclosure provides CSI reporting with at least the following several possible implementations:

Implementation 1, the indication of the N reference signal resources is continuous, and the portion of the reference signal resources includes a reference signal resource that indicates the smallest or the largest of the N reference signal resources.

That is, the CSI report may include channel quality information corresponding to the N reference signal resources, and an indication of a reference signal resource indicating the smallest or the largest of the N reference signal resources, which may also be understood as an indication of a starting reference signal resource. And the indication corresponding to the initial reference signal resource is the initial indication in the continuous indications of the N reference signal resources.

Illustratively, the bit length occupied by the indication of the smallest or largest indicated reference signal resource of the N reference signal resources may beWhereinAnd representing the upward rounding symbol, wherein M is the number of the reference signal resources contained in the configured reference signal resource set for channel measurement.

It should be noted that, multiple beams selected by the terminal for reporting may be concentrated in a specific area, so that the beam angles corresponding to the multiple beams or the indications of the corresponding reference signal resources are continuous. Thus, to reduce the overhead of beam reporting, the beam to be reported may be described by a starting position of a reference signal resource (e.g., a reference signal resource indicating a minimum or a maximum) and a length based on consecutive indications. Therefore, the number of the indication to be reported can be reduced, so that the reporting overhead is reduced.

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

In some embodiments, the CSI report further comprises at least one of: and N is a value and a first indication.

The value of N is the number of the reference signal resources to be reported determined by the terminal.

In an example, when the terminal determines that N reference signal resources need to be reported, the value of N may be added to the CSI report.

In another example, the base station determines the value of N and configures the value of N to the terminal, so that the terminal receives the value of N, where the CSI report may not include the value of N.

In addition, the first indication is used for indicating a reference signal resource with the largest channel quality information among the N reference signal resources. Thus, the first indication may be referred to as the strongest beam position indication.

The bit length occupied by the first indication may beOrIt 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.

In one example, the first indication may be an indication of a reference signal resource corresponding to the strongest beam position. That is, the indication for indicating the strongest beam position may be indicated by the reference signal resource, in which case the first indication occupies a bit length that may be

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

As shown in fig. 3, the number M of reference signal resources included in the configured reference signal resource set for channel measurement has a value of 16, which indicates 0-15, and the solid circles indicate the reference information resources to be reported. And, the number N of reference signal resources required to be reported by the terminal is 4, and the reference signal resource with the largest channel quality information in the N reference signal resources is the reference signal resource 32. And, the reference signal resource indication of the start position (i.e., the position where the reference signal resource indication is the smallest) corresponds to the reference signal resource 31, which is indicated as "4", and the reporting bit is "0100". The strongest beam position, i.e. the first indication corresponds to the reference signal resource 32, through which in one example the indication is used to indicate the strongest beam position, which is indicated as "6", and the reporting bit is "0110". In another example, the 3 rd reference signal resource, i.e. the corresponding strongest beam position, of the 4 reported reference signal resources is directly indicated, and the reporting bit is "10".

In some embodiments, the sum of the indication of the reference signal resource at the starting position and the number of the reported reference signal resources exceeds the maximum resource indication, and the indication and the reporting of the reference signal resources can be performed in a cyclic shift manner. The strongest beam position indication may be performed in accordance with the reference signal resource indication order before or after the cyclic shift.

As shown in fig. 4, the number M of reference signal resources included in the configured reference signal resource set for channel measurement has a value of 16, which indicates 0-15, and the solid circles indicate the reference information resources to be reported. And, the number N of the reference signal resource indications required to be reported by the terminal is 4. The reference signal resource indication of the starting position corresponds to the 15 th reference signal resource, and the reporting bit is 1110. The position of the strongest beam corresponds to the 1 st reference signal resource, and the reference signal resource indicates the position of the strongest beam, and the report bit is "0000". Or according to the indication sequence before cyclic shift, directly indicating the position of the strongest beam corresponding to the 1 st reference signal resource, namely the reference signal resource 41, in the 4 reported reference signal resources, and reporting the bit as '00'. Or according to the indication sequence after the cyclic shift, directly indicating the position of the strongest beam corresponding to the 3 rd reference signal resource in the 4 reported reference signal resources, wherein the reporting bit is '10'.

Implementation 2, N reference signal resources are divided into K reference signal resource regions, and the indication of the reference signal resource in each reference signal resource region is continuous, and the partial reference signal resource includes the reference signal resource with the smallest indication or the largest indication of each of the K reference signal resource regions. Wherein K is a positive integer less than or equal to N.

That is, the CSI report may include channel quality information corresponding to the N reference signal resources, and an indication of a reference signal resource where each of K reference signal resource regions indicates a minimum or a maximum of the N reference signal resources.

Exemplary, each of the bit lengths occupied by the indication indicating the smallest or the largest reference signal resource may beWhereinRepresents the round-up symbol, and M represents the number of reference signal resources contained in the set of reference signal resources configured for channel measurement.

Furthermore, the plurality of beams selected and reported at the terminal are concentrated in a plurality of scattered areas, and the indication of the reference signal resource corresponding to each area is continuous. The beams that need to be reported can thus be described by the starting position of the reference signal resources of the respective region (i.e. the indication indicating the smallest or the indication indicating the largest reference signal resource) and the length, respectively, based on the successive indications of the respective region. Thus, the reporting overhead can be reduced.

In some embodiments, the CSI report further comprises at least one of: the value of N, the number of the reference signal resources contained in each of the K reference signal resource areas, the second indication and the K third indications.

Further, the second indication is used to indicate a reference signal resource having the largest channel quality information among the N reference signal resources. Thus, the second indication may be referred to as the strongest beam position indication.

Exemplary, the bit length occupied by the second indication may beOrIt 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. Furthermore, the terminal can report one maximum RSRP/SINR in an absolute value mode, and other RSRP/SINR in a differential mode.

In one example, the second indication may be an indication of a reference signal resource corresponding to the strongest beam position. That is, the indication for indicating the strongest beam position may be indicated by the reference signal resource, in which case the second indication occupies a bit length that may be

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

And, each of the K third indications corresponds to one reference signal resource region, and the third indication is used for indicating the reference signal resource with the largest channel quality information in the corresponding reference signal resource region.

For example, multiple larger RSRP/SINR may be reported in absolute value, and other RSRP/SINR may be reported in differential mode. That is, for each reference signal resource region, the maximum RSRP/SINR in that reference signal resource region may be determined to report in absolute value, with other RSRP/SINRs reporting in differential. In some embodiments, for a reference signal resource region having only one reference signal resource, the region does not need an additional strongest beam position indication, i.e. the third indication described above. Or for a reference signal resource region with multiple reference signal resources, the region needs to report the strongest beam position indication, that is, the third indication.

In one example, a third indication may be an indication of a reference signal resource corresponding to a strongest beam position in a reference signal resource region to which the third indication corresponds. That is, the indication for indicating the strongest beam position may be indicated by the reference signal resource, in which case the third indication may occupy a bit length of

In another example, among the N reference signal resource indications that need to be reported, the strongest beam position in each reference signal resource region is indicated separately. Wherein each third indication occupies a bit length of

In yet another example, a third indication may further directly indicate the reference signal resource corresponding to the maximum RSRP/SINR in the reference signal resource region corresponding to the third indication. That is, the reference signal resource with the largest corresponding measured RSRP/SINR in the reference signal resource region may be directly indicated. At this time, in the kth (k=1, 2,..k) reference signal resource region, the bit length occupied by the third indication isWherein N _k is the number of reference signal resources corresponding to the kth (k=1, 2,..k) reference signal resource region.

In some embodiments, the CSI report may further include a value of K.

The value of K is the number of reference signal resource areas corresponding to the N reference signal resources. For example, in the case that the terminal itself determines the value of K, the value of K may be added to the CSI report. Or the base station determines and configures the value of K to the terminal, so that the terminal receives the value of K, and the CSI report does not need to include the value of K.

In some embodiments, the number of reference signal resources included in each reference signal resource region may also be included in the CSI report, e.g., N ₁,N₂,...N_K. The number of reference signal resources in the kth reference signal resource region may be N _k, k=1, 2.

Wherein the sum of the number of reference signal resources in the K reference signal resource regions is equal to N, i.eIn one example, the number of reference signal resources in the K-1 reference signal resource regions may be reported, and then the number of reference signal resources in the 1 reference signal resource regions that are not reported may be determined in combination with the value of N. For example, the first reference signal resource region, or the last reference signal resource region, or other possible reference signal resource regions may not be reported.

As shown in fig. 5, the number M of reference signal resources included in the configured reference signal resource set for channel measurement has a value of 16, which indicates 0-15, and the solid circles indicate the reference information resources to be reported. And, the number N of the reference signal resources required to be reported by the terminal takes a value of 7. The number of reference signal resources N ₁ in the first reference resource region has a value of 3 and the indication of the starting reference signal resource 51 in the first reference resource region is "0010". The number of reference signal resources N ₂ in the second reference resource region has a value of 4 and the indication of the starting reference signal resource 52 in the second reference resource region is "1010".

And, the CSI report includes a second indication, that is, reporting a maximum RSRP/SINR in an absolute value manner, and reporting other RSRP/SINR 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 ofOrDenoted "0100" or "010", respectively.

Or as shown in fig. 6, the number M of the reference signal resources included in the configured reference signal resource set for channel measurement has a value of 16, which indicates 0-15, and the solid circle indicates the reference information resource to be reported. And, the number N of the reference signal resources required to be reported by the terminal takes a value of 7. The number of reference signal resources N ₁ in the first reference resource region has a value of 3. The number of reference signal resources N ₂ in the second reference resource region has a value of 4.

The CSI report includes a third indication, that is, one maximum RSRP/SINR in each region is reported in an absolute value manner, and the other RSRP/SINRs are reported in a differential manner. So that the strongest beam position indication in the first reference signal resource region, i.e. the reference signal resource 61 corresponding to the third indication, occupies a bit length ofOrDenoted "0100", "010" or "10", respectively. The strongest beam position indication in the second reference signal resource region, i.e., the reference signal resource 62 corresponding to the third indication, occupies a bit lengthOrRespectively denoted as "1011", "10" or "01".

Implementation 3, N reference signal resources belong to the same reference signal resource group, and part of the reference signal resources include an indication of a target reference signal resource in the reference signal resource group.

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 in the reference signal resource group.

In some embodiments, the terminal divides the reference signal resources in the reference signal resource set into Q reference signal resource groups according to the resource grouping information or a preset rule. Or the base station may divide the reference signal resources in the reference signal resource set into Q reference signal resource groups according to the resource grouping information or a preset rule, and indicate the resource grouping information as the terminal. Q is an integer greater than 1. Thus, the reference signal resource group is one of the Q reference signal resource groups.

In an example, the resource packet information is signaled by radio resource control RRC signaling or access control layer control element MAC CE signaling or downlink control information DCI.

In some embodiments, the target reference signal resource is any one of: the method comprises the steps of indicating the smallest or largest reference signal resource in a reference signal resource group, indicating the largest reference signal resource in the reference signal resource group, indicating the smallest reference signal resource in the reference signal resource group, indicating the largest reference signal resource of channel quality information in the reference signal resource group, and indicating the largest reference signal resource of channel quality information in N reference signal resources.

Thus, the indication of the target reference signal resource in the set of reference signal resources may be an identification of one of the reference signal resources in the set of resources. For example, an identification of a reference signal resource indicating a minimum or indicating a maximum or an identification of a reference signal resource having a minimum/maximum indication. In this way, since the reference signal resources in the reference signal resource group are interrelated, all reference signal resources within the resource group can be indicated by an identification indicating the smallest or indicating the largest reference signal resource or an identification of the reference signal resource with the smallest/largest indication.

It should be noted that, the base station may divide all the 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. Or the terminal may divide all the reference signal resources in the configured reference signal resource set into Q reference signal resource groups according to a certain rule, for example, each continuous fixed number of resources may be one reference signal resource group. The reference signal resource groups may be as shown in fig. 7, for example, packet 1, packet 2, packet 3, packet 4, and packet 5 in fig. 7. Thus, the beams carried by all the resources within each resource group are considered to be correlated, and thus the corresponding measurements need to be reported to the base station simultaneously, or not simultaneously. And, the indication of the target reference signal resource in the reference signal resource group can be used for indicating all the reference signal resources in the resource group, so that the reporting overhead can be reduced.

In some embodiments, the CSI report further comprises at least one of: group indication of the reference signal resource group, value of N and fourth indication.

Wherein the group indication of the reference signal resource group is used for identifying the reported reference signal resource group and the corresponding reference signal resource. The indication length may beWhere Q represents the total number of resource groups. /(I)

In addition, the value of N is the number of the reference signal resources to be reported determined by the terminal.

In an example, when the terminal determines that N reference signal resources need to be reported, the value of N may be added to the CSI report. In another example, the base station determines the value of N and configures the value of N to the terminal, so that the terminal receives the value of N, where the CSI report may not include the value of N.

And, the fourth indication is used for indicating the reference signal resource with the largest channel quality information among the N reference signal resources. Thus, the fourth indication may be referred to as the strongest beam position indication.

The fourth indication may occupy a bit length ofOrIt 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. Furthermore, the terminal can report one maximum RSRP/SINR in an absolute value mode, and other RSRP/SINR in a differential mode.

In one example, the fourth indication may be an indication of a reference signal resource corresponding to the strongest beam position. That is, the indication for indicating the strongest beam position may be indicated by the reference signal resource, in which case the fourth indication may occupy a bit length of

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

In implementation 4, the N reference signal resources belong to G reference signal resource groups, and the partial reference signal resources include an indication of a target reference signal resource of each of the G reference signal resource groups, where G is a positive integer.

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

In some embodiments, the terminal divides the reference signal resources in the reference signal resource set into Q reference signal resource groups according to the resource grouping information or a preset rule. Or the base station may divide the reference signal resources in the reference signal resource set into Q reference signal resource groups according to the resource grouping information or a preset rule, and indicate the resource grouping information as the terminal. Q is an integer greater than 1. Thus, the G reference signal resource groups belong to Q reference signal resource groups, and G is less than or equal to Q.

In some embodiments, the target reference signal resource is a reference signal resource indicating a minimum or a maximum, a reference signal resource indicating a maximum, or a reference signal resource indicating a minimum in the set of reference signal resources.

Thus, the indication of the target reference signal resource for each of the G reference signal resource groups is an identification of one of the reference signal resources of the respective reference signal resource group. For example, the reference signal resource identity of the starting position in each reference signal resource group (such as an identity indicating the smallest or indicating the largest reference signal resource or an identity of the reference signal resource with the smallest/largest indication). In this way, since the reference signal resources in the reference signal resource groups are interrelated, all the reference signal resources within each reference signal resource group can be indicated by the reference signal resource identification of the starting position.

In some embodiments, the CSI report further comprises at least one of: the value of G, the value of N, the group indication of each of the G reference signal resource groups, the number of the reference signal resources contained in each of the G reference signal resource groups, the fifth indication and the G sixth indication.

The value of G is the number of reference signal resource groups to be reported. For example, in the case where the value of G is configured to the terminal by the base station, the CSI report may not include the value of G, that is, the value of G does not need to be reported. Or the value of G may be determined by the terminal, and the CSI report may include the value of G, that is, the value of G may be reported.

Further, the fifth indicates a reference signal resource for indicating that channel quality information is the largest among the N reference signal resources.

And, each of the G sixth indications corresponds to one reference signal resource group, and the sixth indication is used for indicating the reference signal resource with the largest channel quality information in the corresponding reference signal resource group. Furthermore, the terminal can report one maximum RSRP/SINR in an absolute value mode, and other RSRP/SINR in a differential mode.

For example, multiple larger RSRP/SINR may be reported in absolute value, and other RSRP/SINR may be reported in differential mode. That is, for each reference signal resource group, the maximum RSRP/SINR in that reference signal resource group may be determined to report in absolute value, with other RSRP/SINRs reporting in differential. In some embodiments, for a reference signal resource group having only one reference signal resource, the group does not need an additional strongest beam position indication, i.e. the sixth indication described above. Or for a reference signal resource group with multiple reference signal resources, the group needs to report the strongest beam position indication, i.e. the sixth indication.

In one example, a sixth indication may be an indication of the reference signal resource corresponding to the strongest beam position in the reference signal resource group to which the sixth indication corresponds. That is, the indication for indicating the strongest beam position may be indicated by the reference signal resource, in which case the sixth indication may occupy a bit length of

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. Wherein each sixth indication occupies a bit length of

In yet another example, a sixth indication may further directly indicate the reference signal resource corresponding to the maximum RSRP/SINR in the reference signal resource region corresponding to the sixth indication. That is, the reference signal resource with the largest corresponding measured RSRP/SINR in the reference signal resource region may be directly indicated. At this time, in the kth (k=1, 2,..k) reference signal resource region, the bit length occupied by the sixth indication isWherein N _k is the number of reference signal resources corresponding to the kth (k=1, 2,..k) reference signal resource region.

In some embodiments, the CSI report may further include a number of reference signal resources corresponding to each of the G reference signal resource groups, N ₁,N₂,...N_G respectively.

In some embodiments, an indication of multiple reference signal resource groups, e.g., G, may also be included in the CSI report. Each resource group indication length may beWhere Q represents the total number of resource groups.

In implementation 5, the N reference signal resources include R reference signal resource groups, each reference signal resource group includes H reference signal resources, the H reference signal resources are from different reference signal resource sets, the partial reference signal resources include reference signal resources with minimum indication or maximum indication corresponding to the H reference signal resource sets, and R and H are positive integers.

That is, the CSI report may include channel quality information corresponding to the N reference signal resources, and reference signal resources indicating the smallest or largest of the H reference signal resource sets corresponding to the N reference signal resources.

Exemplary, the bit length of the indication occupation of the reference signal resource indicating the minimum or the maximum corresponding to each of the H reference signal resource sets isWhereinRepresents an upward rounding symbol, and M represents the number of reference signal resources contained in the corresponding reference signal resource set.

It should be noted that, in the continuous indication reporting method in the multi-TRP/multi-user panel scenario, the terminal may report by adopting the continuous indication method respectively for multiple reference signal resource sets configured by the base station. Meanwhile, for each reference signal resource to be reported, an additional packet mapping relationship is reported, and two or more reference signal resources/beams in the same group can be identified to be received by the UE at the same time.

In some embodiments, the CSI report further comprises at least one of: seventh indication, R value, H eighth indications and R reference signal resource mapping relation.

The seventh indication is used for indicating a reference signal resource set to which the reference signal resource with the largest channel quality information in the N reference signal resources belongs.

For example, based on the differential reporting mechanism, the terminal may indicate the reference signal resource set where the reference signal resource with the largest measurement RSRP/SINR is located. For example, in case the base station configures two reference signal resource sets for measurement, the terminal may report a seventh indication of "0" to indicate that the reference signal resource having the largest measurement result RSRP/SINR is from the first reference signal resource set, or a seventh indication of "1" to indicate that the reference signal resource having the largest measurement result RSRP/SINR is from the second reference signal resource set.

Further, H eighth indications each correspond to one reference signal resource set, and the eighth indications are used for indicating reference signal resources in the reference signal resource set, for which channel quality information is the largest. For example, the terminal may report one maximum RSRP/SINR in an absolute value manner, and the other RSRP/SINR in a differential manner.

In one example, an eighth indication may be an indication of the reference signal resource corresponding to the strongest beam position in the reference signal resource set to which the eighth indication corresponds. That is, the indication for indicating the strongest beam position may be indicated by the reference signal resource indication, in which case the eighth indication may occupy a bit length of

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 respectively. Wherein each eighth indication occupies a bit length ofOr

And R reference signal resource mapping relations respectively correspond to one reference signal resource group, and the reference signal resource mapping relations are used for determining the reference signal resources in the corresponding reference signal resource groups.

It should be noted that two or more reference signal resources/beams within the same group may be received simultaneously by the terminal. Thus, the terminal needs to further indicate the corresponding reference signal resources within each group. Specifically, for each reference signal resource that needs to be reported in the reference signal resource set or the first/second reference signal resource set where the reference signal resource with the maximum measurement result RSRP/SINR is located, the additional reporting bit length isOrFor indicating another reference signal resource belonging to the same group as the reference signal resource.

In some embodiments, the CSI report may further include the number of reported reference signal resource groups. In some embodiments, the CSI report may further include indication information for indicating a reference signal resource having the greatest channel quality information among the N reference signal resources. Thus, the indication information may be referred to as the strongest beam position indication.

Illustratively, the bit length occupied by the indication information may beOrOrIt 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.

In one example, the indication information may be an indication of a reference signal resource corresponding to the strongest beam position. That is, the indication of the strongest beam position may be indicated by the reference signal resource indication, where the indication information occupies a bit length that may be

In another example, the indication information may also directly indicate the reference signal resource corresponding to the maximum RSRP/SINR. That is, the reference signal resource with the largest measured RSRP/SINR among the reported N reference signal resources may be directly indicated. At this time, the bit length occupied by the indication information may beOr

As shown in fig. 8, the number of reference signal resource sets configured by the base station for channel measurement is two, the number of reference signal resources M contained in each reference signal resource set is equal to 16, and the solid circles indicate the reference information resources to be reported. The number N of the reported reference signal resources is equal to 8, the number R of the reported reference signal resource groups is equal to 4, and the number of the 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 largest measurement RSRP/SINR is from the first reference signal resource set. The strongest beam position indication is used to indicate the 4 th reference signal resource of the first set of reference signal resources, i.e. reference signal resource 81, which occupies a bit length ofOrRespectively denoted as "0011" or "01". The reference signal resource indication with the smallest indication corresponding to the first reference signal resource set is "0010", and the reference signal resource indication with the smallest indication corresponding to the second reference signal resource set is "0011".

In addition, the first reference signal resource group is { the 1 st reporting beam of resource set 1, the 2 nd reporting beam of resource set 2 }, and the packet mapping indication, that is, the reference signal resource mapping relationship, may be "01". The second reference signal resource group is { the 2 nd reporting beam of resource set 1, the 4 th reporting beam of resource set 2 }, the packet map indication may be "11". The third reference signal resource group is { the 3 rd reporting beam of resource set 1, the 1 st reporting beam of resource set 2 }, and the packet map indicates "00". The fourth reference signal resource group is { 4 th reporting beam of resource set 1, 3 rd reporting beam of resource set 2 }, and the packet map indicates "10".

S102, sending a CSI report.

In addition, the disclosure also provides information which can be included in the channel state information report under the conditions of single area, multi-area, resource grouping and multi-TRP/multi-user panel so as to describe the beam to be reported more accurately and improve the reporting precision.

In some embodiments, the disclosure further provides a method for receiving various channel state information, as shown in fig. 9, where the method includes:

S201, receiving a CSI report, wherein the CSI report comprises channel quality information corresponding to N reference signal resources and indications of part of the reference signal resources in the N reference signal resources, and N is a positive integer.

In one possible implementation, the indication of the N reference signal resources is consecutive, and the portion of the reference signal resources includes the reference signal resource indicating the smallest or the largest of the N reference signal resources.

The first indication is used for indicating the reference signal resource with the largest channel quality information in the N reference signal resources.

In some embodiments, the first indication has a bit length ofOrWherein M is the number of reference signal resources contained in the reference signal resource set for channel measurement,Representing rounding up symbols.

In another possible implementation, the N reference signal resources are divided into K reference signal resource regions, the indication of the reference signal resources within each reference signal resource region being contiguous, the partial reference signal resources comprising respective starting reference signal resources of the K reference signal resource regions, K being a positive integer less than or equal to N.

In some embodiments, the CSI report further comprises at least one of: the value of N, the value of K, the number of the reference signal resources contained in each of the K reference signal resource areas, the second indication and the K third indications; the second indication is used for indicating the reference signal resource with the largest channel quality information in the N reference signal resources; the K third indications each correspond to one reference signal resource region, and the third indications are used for indicating the reference signal resource with the largest channel quality information in the corresponding reference signal resource region.

In yet another possible implementation, the N reference signal resources belong to the same reference signal resource group, and the partial reference signal resources include target reference signal resources in the reference signal resource group.

The fourth indication is used for indicating the reference signal resource with the largest channel quality information in the N reference signal resources.

In yet another possible implementation, 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.

Wherein the fifth indicates a reference signal resource for indicating that channel quality information is the largest among the N reference signal resources. Each of the G sixth indications corresponds to one reference signal resource group, and the sixth indication is used for indicating the reference signal resource with the largest channel quality information in the corresponding reference signal resource group.

In some embodiments, the base station may further divide the reference signal resources in the reference signal resource set into Q reference signal resource groups, Q being an integer greater than 1, before receiving the CSI report. And transmitting resource grouping information of the Q reference signal resource groups.

In some embodiments, the resource packet information is indicated by RRC signaling or MAC CE signaling or DCI.

In yet another possible implementation, the N reference signal resources belong to R reference signal resource groups, each reference signal resource group contains H reference signal resources, the H reference signal resources are from different reference signal resource sets, the partial reference signal resources include reference signal resources indicating minimum or maximum respectively corresponding to the H reference signal resource sets, and R and H are positive integers.

The seventh indication is used for indicating a reference signal resource set to which the reference signal resource with the largest channel quality information in the N reference signal resources belongs. The H eighth indications each correspond to one reference signal resource set, and the eighth indications are used for indicating the reference signal resource with the largest channel quality information in the reference signal resource set. R reference signal resource mapping relations respectively correspond to one reference signal resource group, and the reference signal resource mapping relations are used for determining the reference signal resources in the corresponding reference signal resource groups.

In some embodiments, the channel quality information includes at least one of: reference signal received power RSRP, signal to interference plus noise ratio SINR, reference signal received quality RSRP, channel quality indication CQI.

The detailed description of step S201 may refer to the related descriptions in steps S101-S102, which are not repeated here.

The foregoing has described the solutions provided by the present disclosure primarily in terms of interactions between various communication nodes. It will be appreciated that each communication node, in order to implement the above-described functions, includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or a combination of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

Fig. 10 is a schematic diagram of a communication device according to an embodiment of the disclosure. As shown in fig. 10, the communication apparatus 100 includes a processing module 1001 and a transmitting module 1002.

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

In some embodiments, the indication of the N reference signal resources is consecutive, and the partial reference signal resources include reference signal resources of the N reference signal resources that indicate the smallest or indicate the largest.

In some embodiments, the CSI report further comprises at least one of: the value of N and a first indication; the first indication is used for indicating the reference signal resource with the largest channel quality information in the N reference signal resources. Wherein the bit length of the first indication isOrWherein M is the number of reference signal resources contained in the reference signal resource set for channel measurement,Representing rounding up symbols.

In some embodiments, the N reference signal resources are divided into K reference signal resource regions, the indication of the reference signal resources within each reference signal resource region being contiguous, the partial reference signal resources comprising respective starting reference signal resources of the K reference signal resource regions, K being a positive integer less than or equal to N.

In some embodiments, the N reference signal resources belong to the same reference signal resource group, and the partial reference signal resources include target reference signal resources in the reference signal resource group.

In some embodiments, the CSI report further comprises at least one of: group indication of a reference signal resource group, a value of N and a fourth indication; the fourth indication is used for indicating the reference signal resource with the largest channel quality information in the N reference signal resources.

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.

In some embodiments, the CSI report further comprises at least one of: the value of G, the value of N, the group indication of each of G reference signal resource groups, the number of the reference signal resources contained in each of G reference signal resource groups, a fifth indication and G sixth indications; wherein, the fifth indication is used for indicating the reference signal resource with the largest channel quality information in the N reference signal resources; each of the G sixth indications corresponds to one reference signal resource group, and the sixth indication is used for indicating the reference signal resource with the largest channel quality information in the corresponding reference signal resource group.

In some embodiments, the target reference signal resource is any one of: the reference signal resource group indicates the largest reference signal resource, indicates the smallest reference signal resource, indicates the largest reference signal resource of the channel quality information, and indicates the largest reference signal resource of the channel quality information in the N reference signal resources.

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 the resource grouping information or a preset rule, where Q is an integer greater than 1. In some embodiments, the resource packet information is indicated by radio resource control, RRC, signaling or access control layer control element, MAC CE, signaling or downlink control information, DCI.

In some embodiments, the 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 are from different reference signal resource sets, the partial reference signal resources include reference signal resources indicating minimum or maximum respectively corresponding to the H reference signal resource sets, and R and H are positive integers.

In some embodiments, the CSI report further comprises at least one of: seventh indication, the value of R, H eighth indications and R reference signal resource mapping relations; the seventh indication is used for indicating a reference signal resource set to which the reference signal resource with the largest channel quality information in the N reference signal resources belongs; h eighth indications each corresponding to one of the reference signal resource sets, the eighth indications being for indicating a reference signal resource in the reference signal resource set for which channel quality information is the largest; r reference signal resource mapping relations respectively correspond to one reference signal resource group, and the reference signal resource mapping relations are used for determining the reference signal resources in the corresponding reference signal resource groups.

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

For a more detailed description of the processing module 1001 and the sending module 1002, and a more detailed description of each technical feature, and a description of the beneficial effects, etc., reference may be made to the corresponding method embodiment parts, which are not repeated herein.

Fig. 11 is a schematic diagram illustrating a communication device according to an embodiment of the disclosure. As shown in fig. 11, the communication device 110 includes a receiving module 1101, a processing module 1102, and a transmitting module 1103.

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 a part of the N reference signal resources, where N is a positive integer.

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 the resource grouping information or a preset rule, Q is an integer greater than 1, and the sending module 1103 is configured to send the resource grouping information of the Q reference signal resource groups. In some embodiments, the resource packet information is indicated by radio resource control, RRC, signaling or access control layer control element, MAC CE, signaling or downlink control information, DCI.

For a more detailed description of the receiving module 1101, the processing module 1102, and the transmitting module 1103, a more detailed description of each technical feature, a description of the beneficial effects, and the like, reference may be made to the corresponding method embodiment sections, and details are not repeated here.

The module in fig. 10 or 11 may also be referred to as a unit, and for example, the transmitting module may be referred to as a transmitting unit. In addition, in the embodiment shown in fig. 10 or 11, the names of the respective modules may be other than those shown in the drawings, and for example, the transmitting module may be referred to as a communication module and the receiving module may be referred to as a communication module.

The individual units or modules in fig. 10 or 11 may be stored in a computer-readable storage medium if implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solution of the embodiments of the present disclosure may be essentially or a part contributing to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods of the embodiments of the present disclosure. The storage medium storing the computer software product includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In the case where the functions of the above-described integrated modules are implemented in the form of hardware, the embodiment of the present disclosure provides a schematic structural diagram of a communication apparatus, which may be the above-described communication apparatus 100 or communication apparatus 110. As shown in fig. 12, the communication device 120 includes: a processor 1202, a communication interface 1203, and a bus 1204. Optionally, the communication device 120 may further comprise a memory 1201.

The processor 1202, which may be a processor, may be implemented or executed with various exemplary logic blocks, modules, and circuits described in connection with the present disclosure. The processor 1202 may be a central processor, 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. Which may implement or perform the various exemplary logic blocks, modules, and circuits described in connection with this disclosure. The processor 1202 may also be a combination that performs computing functions, such as including one or more microprocessors, a combination of a DSP and a microprocessor, or the like.

A communication interface 1203 is configured to connect with other devices via a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc.

The memory 1201 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (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 (ELECTRICALLY ERASABLE PROGRAMMABLE READ-only memory, EEPROM), magnetic disk storage 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 that can be accessed by a computer.

As a possible implementation, the memory 1201 may exist separately from the processor 1202, and the memory 1201 may be connected to the processor 1202 by the bus 1204 for storing instructions or program code. The processor 1202, when calling and executing instructions or program code stored in the memory 1201, can implement the information processing manner determination method provided by the embodiments of the present disclosure.

In another possible implementation, the memory 1201 may also be integrated with the processor 1202.

Bus 1204, which may be an extended industry standard architecture (extended industry standard architecture, EISA) bus, or the like. Bus 1204 may be classified as an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in fig. 12, but not only one bus or one type of bus.

From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be performed by different functional modules according to needs, that is, the internal structure of the apparatus or device is divided into different functional modules to perform all or part of the functions described above.

Embodiments of the present disclosure also provide a computer-readable storage medium. All or part of the flow in the above method embodiments may be implemented by computer instructions to instruct related hardware, and the program may be stored in the above computer readable storage medium, and the program may include the flow in the above method embodiments when executed. The computer readable storage medium may be any of the foregoing embodiments or memory. The computer-readable storage medium may be an external storage device of the apparatus or device, such as a plug-in hard disk, a smart memory card (SMART MEDIA CARD, SMC), a Secure Digital (SD) card, a flash memory card (FLASH CARD), or the like, which are provided on the apparatus or device. Further, the computer readable storage medium may also include both an internal storage unit and an external storage device of the apparatus or device. The computer-readable storage medium is used to store the computer program described above and other programs and data required by the apparatus or device described above. The above-described computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.

The disclosed embodiments also provide a computer program product comprising a computer program which, when run on a computer, causes the computer to perform any of the methods provided in the embodiments above.

Although the disclosure has been described herein in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed disclosure, from a study of the drawings, the disclosure, and the appended claims. In the claims, the term "comprising" (Comprising) does not exclude other elements or steps,

"A" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the present disclosure has been described in connection with specific features and embodiments thereof, it will be apparent that various modifications and combinations thereof can be made without departing from the spirit and scope of the disclosure. Accordingly, the specification and drawings are merely exemplary illustrations of the present disclosure as defined in the appended claims and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of the disclosure. It will be apparent to those skilled in the art that various modifications and variations can be made to the present disclosure without departing from the spirit or scope of the disclosure. Thus, the present disclosure is intended to include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

The foregoing is merely a specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, and any changes or substitutions within the technical scope of the disclosure should be covered by the protection scope of the disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A method for transmitting channel state information, the method comprising:

Based on measurement of Channel State Information (CSI), obtaining a CSI report;

And sending the CSI report, wherein the CSI report comprises channel quality information corresponding to N reference signal resources and indications of part of the reference signal resources in the N reference signal resources, and N is a positive integer.

2. The method of claim 1, wherein the indication of the N reference signal resources is consecutive, and the portion of reference signal resources comprises either the smallest indicated or the largest indicated of the N reference signal resources.

3. The method of claim 1, wherein the CSI report further comprises at least one of: the value of N is a first indication; the first indication is used for indicating a reference signal resource with the largest channel quality information in the N reference signal resources.

4. The method of claim 3, wherein the bit length of the first indication isOr (b)Wherein M is the number of reference signal resources contained in the reference signal resource set for channel measurement,Representing rounding up symbols.

5. The method of claim 1, wherein the N reference signal resources are divided into K reference signal resource regions, the indication of reference signal resources within each reference signal resource region being contiguous, the partial reference signal resources comprising respective indicated minimum or indicated maximum reference signal resources for the K reference signal resource regions, K being a positive integer less than or equal to N.

6. The method of claim 5, wherein the CSI report further comprises at least one of: the value of N, the value of K, the number of the 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 for indicating a reference signal resource with the largest channel quality information in the N reference signal resources; and the K third indications are respectively corresponding to one reference signal resource region, and are used for indicating the reference signal resource with the largest channel quality information in the corresponding reference signal resource region.

7. The method of claim 1, wherein the N reference signal resources belong to a same reference signal resource group, and the portion of reference signal resources comprises target reference signal resources in the reference signal resource group.

8. The method of claim 7, wherein the CSI report further comprises at least one of: a group indication of the reference signal resource group, a value of the N and a fourth indication; wherein the fourth indication is used for indicating a reference signal resource with the largest channel quality information in the N reference signal resources.

9. The method of claim 1, wherein the N reference signal resources belong to G reference signal resource groups, the partial reference signal resources comprise an indication of a target reference signal resource in the G reference signal resource groups, and G is a positive integer.

10. The method of claim 9, wherein the CSI report further comprises at least one of: the value of G, the value of N, the group indication of each of the G reference signal resource groups, the number of the 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 for indicating a reference signal resource with the largest channel quality information in the N reference signal resources; and G sixth indications correspond to one reference signal resource group respectively, and the sixth indications are used for indicating the reference signal resource with 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 reference signal resource indicating the largest in the reference signal resource group indicates the smallest in the reference signal resource group, the reference signal resource with the largest channel quality information in the reference signal resource group, and the reference signal resource with the largest channel quality information in the N reference signal resources.

12. The method according to claim 7 or 9, characterized in that the method further comprises:

according to the resource grouping information or a preset rule, dividing the reference signal resources in the reference signal resource set into Q reference signal resource groups, wherein Q is an integer greater than 1.

13. The method according to claim 12, characterized in that the resource packet information is indicated by radio resource control, RRC, signaling or access control layer control unit, MAC CE, signaling or downlink control information, DCI.

14. The method of claim 1, wherein the N reference signal resources comprise R reference signal resource groups, each reference signal resource group comprising H reference signal resources, the H reference signal resources being from different reference signal resource sets, the partial reference signal resources comprising reference signal resources indicating minimum or maximum for each of the H reference signal resource sets, R and H being positive integers.

15. The method of claim 14, wherein the CSI report further comprises at least one of: seventh indication, the value of R, H eighth indications and R reference signal resource mapping relations; wherein the seventh indication is used for indicating a reference signal resource set to which the reference signal resource with the largest channel quality information in the N reference signal resources belongs; each of the H eighth indications corresponds to one reference signal resource set, and the eighth indication is used for indicating a reference signal resource with the largest channel quality information in the reference signal resource set; the R reference signal resource mapping relations correspond to one reference signal resource group respectively, and the reference signal resource mapping relations are used for determining the reference signal resources in the corresponding reference signal resource group.

16. The method of claim 1, wherein the channel quality information comprises at least one of:

Reference signal received power RSRP, signal to interference plus noise ratio SINR, reference signal received quality RSRQ, channel quality indication CQI.

17. A method for receiving channel state information, the method comprising:

and receiving a CSI report, wherein the CSI report comprises channel quality information corresponding to N reference signal resources and an indication of part of the reference signal resources in the N reference signal resources, and N is a positive integer.

18. The method of claim 17, wherein the indication of the N reference signal resources is consecutive, and wherein the portion of reference signal resources comprises either the smallest indicated or the largest indicated of the N reference signal resources.

19. The method of claim 17, wherein the CSI report further comprises at least one of: the value of N is a first indication; the first indication is used for indicating a reference signal resource with the largest channel quality information in the N reference signal resources.

20. The method of claim 19, wherein the bit length of the first indication isOr (b)Wherein M is the number of reference signal resources contained in the reference signal resource set for channel measurement,Representing rounding up symbols.

21. The method of claim 17, wherein the N reference signal resources are divided into K reference signal resource regions, the indication of reference signal resources within each reference signal resource region being contiguous, the partial reference signal resources comprising reference signal resources for each of the K reference signal resource regions indicating a minimum or maximum, K being a positive integer less than or equal to N.

22. The method of claim 21, wherein the CSI report further comprises at least one of: the value of N, the value of K, the number of the 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 for indicating a reference signal resource with the largest channel quality information in the N reference signal resources; and the K third indications are respectively corresponding to one reference signal resource region, and are used for indicating the reference signal resource with the largest channel quality information in the corresponding reference signal resource region.

23. The method of claim 17, wherein the N reference signal resources belong to a same reference signal resource group, and the portion of reference signal resources comprise target reference signal resources in the reference signal resource group.

24. The method of claim 23, wherein the CSI report further comprises at least one of: a group indication of the reference signal resource group, a value of the N and a fourth indication; wherein the fourth indication is used for indicating a reference signal resource with the largest channel quality information in 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 comprise an indication of a target reference signal resource in the G reference signal resource groups, and G is a positive integer.

26. The method of claim 25, wherein the CSI report further comprises at least one of: the value of G, the value of N, the group indication of each of the G reference signal resource groups, the number of the 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 for indicating a reference signal resource with the largest channel quality information in the N reference signal resources; and G sixth indications correspond to one reference signal resource group respectively, and the sixth indications are used for indicating the reference signal resource with 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 reference signal resource indicating the largest in the reference signal resource group indicates the smallest in the reference signal resource group, the reference signal resource with the largest channel quality information in the reference signal resource group, and the reference signal resource with the largest channel quality information in the N reference signal resources.

28. The method according to claim 23 or 25, wherein prior to the receiving CSI reports, the method further comprises:

Dividing reference signal resources in a reference signal resource set into Q reference signal resource groups, wherein Q is an integer greater than 1;

And transmitting the resource grouping information of the Q reference signal resource groups.

29. The method of claim 28, wherein the resource grouping information is indicated by RRC signaling or MAC CE signaling or DCI.

30. The method of claim 17, wherein the N reference signal resources comprise R reference signal resource groups, each reference signal resource group comprising H reference signal resources, the H reference signal resources being from different reference signal resource sets, the partial reference signal resources comprising reference signal resources indicating minimum or maximum for each of the H reference signal resource sets, R and H being positive integers.

31. The method of claim 30, wherein the CSI report further comprises at least one of: seventh indication, the value of R, H eighth indications and R reference signal resource mapping relations; wherein the seventh indication is used for indicating a reference signal resource set to which the reference signal resource with the largest channel quality information in the N reference signal resources belongs; each of the H eighth indications corresponds to one reference signal resource set, and the eighth indication is used for indicating a reference signal resource with the largest channel quality information in the reference signal resource set; the R reference signal resource mapping relations correspond to one reference signal resource group respectively, and the reference signal resource mapping relations are used for determining the reference signal resources in the corresponding reference signal resource group.

32. The method of claim 17, wherein the channel quality information comprises at least one of:

33. A communication device, comprising: a memory and a processor; the memory is coupled to the processor; the memory is used for storing instructions executable by the processor; the processor, when executing the instructions, performs the method of any one of claims 1 to 32.

34. A computer readable storage medium having stored thereon computer instructions which, when run on a communication device, cause the communication device to perform the method of any of claims 1 to 32.