Channel State Information CSI Report Mapping Method, Terminal, and Network Side Device

Abstract

This application discloses a channel state information (CSI) report mapping method, a terminal, and a network side device. The CSI report mapping method of the embodiment of this application includes: a terminal device feeds back X CSI reports to a network side device through a target channel according to a preset mapping rule, where the CSI report includes at least one of information for indicating a beam report type and related information of a target beam, the target beam includes at least one of N pairs of first beams that can be simultaneously received by the terminal device and M pairs of second beams whose measurement values ​​satisfy a predetermined condition, N is a positive integer equal to or greater than 1, X and M are positive integers, and the preset mapping rule is a mapping rule that matches the beam report type.

Description

Technical Field

[0001] (Cross-reference to Related Applications) This application claims the priority of Chinese Patent Application No. 202110336986.X, filed in China on March 29, 2021, and all of the content of the said application is incorporated herein by reference.

[0002] This application belongs to the field of communication technologies, and specifically relates to a mapping method for channel state information (CSI) reports, a terminal, and a network-side device.

Background Art

[0003] In a communication system, after a terminal device reports channel state information (CSI) to a base station, the base station adjusts communication scheduling and a transmission mode based on the reported CSI content, so that the terminal can more easily perform normal communication in the communication system. Therefore, the reporting of CSI is very important.

[0004] In the related art, before a terminal reports CSI, the terminal device first measures a Channel State Information - Reference Signal (CSI-RS) or a synchronization signal and a PBCH block (SSB) configured or activated by a network-side device, and then, based on the beam report configured in the CSI report configuration by the network-side device and the number of reported beams, the terminal device determines the content of the CSI report. The terminal device maps the content of the CSI report to uplink control information (UCI) according to the mapping rule configured by the network-side device and feeds it back to the network-side device via PUCCH or PUSCH. Then, the base station establishes a communication transmission that the terminal can receive with the terminal. When the beam report type of the CSI-RS resource is a group-based beam report type, the terminal reports a pair of beam information that can be received simultaneously by the terminal.

[0005] However, in the process of the terminal reporting CSI, when the beam report type configured by the base station is a group-based beam report, there is no appropriate mapping method for reporting the related information of multiple pairs of beams simultaneously.

Summary of the Invention

Problems to be Solved by the Invention

[0006] Embodiments of the present application provide a mapping method, a terminal, and a network-side device for a channel state information CSI report that can solve the problem of having no appropriate mapping method for simultaneously reporting multiple pairs of beams when the beam report type configured by the base station is a group-based beam report type in the process of the terminal device reporting CSI.

Means for Solving the Problems

[0007] According to a first aspect, a method for mapping channel state information (CSI) reports is provided. This method includes a terminal device feeding back X CSI reports to a network-side device via a target channel according to a preset mapping rule. Here, at least one of information for indicating a beam reporting type and related information of a target beam is included in the CSI report. The target beam includes at least one of N pairs of first beams that can be simultaneously received by the terminal device and M second beams whose measurement values meet a predetermined condition. N is a positive integer greater than or equal to 1, and X and M are positive integers. The preset mapping rule is a mapping rule that matches the beam reporting type.

[0008] According to a second aspect, a device for mapping channel state information (CSI) reports is provided. The device includes a feedback module. The feedback module is used to feed back X CSI reports to a network-side device via a target channel according to a preset mapping rule. Here, at least one of information for indicating a beam reporting type and related information of a target beam is included in the CSI report. The target beam includes at least one of N pairs of first beams that can be simultaneously received by the terminal device and M second beams whose measurement values meet a predetermined condition. N is a positive integer greater than or equal to 1, and X and M are positive integers. The preset mapping rule is a mapping rule that matches the beam reporting type.

[0009] According to a third aspect, a method for mapping channel state information (CSI) reports is provided. The method includes: a network-side device receiving a CSI report reported by a terminal device; and the network-side device analyzing the CSI report based on a beam reporting type. Here, the CSI report includes at least one of information for indicating the beam reporting type and related information of a target beam. The target beam includes at least one of N pairs of first beams that can be simultaneously received by the terminal device and M second beams whose measurement values satisfy a predetermined condition. N is a positive integer greater than or equal to 1, and M is a positive integer. The beam reporting type is configured by the network-side device for the terminal device or determined by the terminal device according to a preset rule of the network-side device. The beam reporting type includes at least one of group-based beam reporting, non-group-based beam reporting, and hybrid beam reporting that combines group-based and non-group-based beam reporting.

[0010] According to a fourth aspect, a mapping apparatus for channel state information (CSI) reports is provided. The apparatus includes a receiving module and an analyzing module. The receiving module is used to receive a CSI report reported by a terminal device. The analyzing module is used to analyze the CSI report based on a beam reporting type. Here, the CSI report includes at least one of information for indicating the beam reporting type and related information of a target beam. The target beam includes at least one of N pairs of first beams that can be simultaneously received by the terminal device and M second beams whose measurement values satisfy a predetermined condition. N is a positive integer greater than or equal to 1, and M is a positive integer. The beam reporting type is configured by the network-side device for the terminal device or determined by the terminal device according to a preset rule of the network-side device. The beam reporting type includes at least one of group-based beam reporting, non-group-based beam reporting, and hybrid beam reporting that combines group-based and non-group-based beam reporting.

[0011] According to a fifth aspect, a terminal is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the method according to the first aspect are realized.

[0012] According to a sixth aspect, a terminal device including a processor and a communication interface is provided. Here, the communication interface is used to feedback X CSI reports to a network-side device via a target channel according to a preset mapping rule. Here, at least one of information for indicating a beam reporting type and related information of a target beam is included in the CSI report. The target beam includes at least one of N pairs of first beams that can be simultaneously received by the terminal device and M second beams whose measurement values satisfy a predetermined condition. N is a positive integer greater than or equal to 1, and X and M are positive integers. The preset mapping rule is a mapping rule that matches the beam reporting type.

[0013] According to a seventh aspect, a network-side device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the method according to the first aspect are realized.

[0014] According to an eighth aspect, a network-side device including a processor and a communication interface is provided. Here, the communication interface is used to receive a CSI report reported by a terminal device, and the processor is used to analyze the CSI report based on a beam reporting type. Here, the CSI report includes at least one of information for indicating the beam reporting type and related information of a target beam. The target beam includes at least one of N pairs of first beams that can be simultaneously received by the terminal device and M second beams whose measurement values satisfy a predetermined condition. N is a positive integer greater than or equal to 1, and M is a positive integer. The beam reporting type is configured for the terminal device by the network-side device or determined according to a preset rule of the network-side device by the terminal device. The beam reporting type includes at least one of group-based beam reporting, non-group-based beam reporting, and hybrid beam reporting that combines group-based and non-group-based reporting.

[0015] According to a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method according to the first aspect are realized, or the steps of the method according to the third aspect are realized.

[0016] According to a tenth aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor runs a program or instruction and is used to realize the method according to the first aspect or the method according to the third aspect.

[0017] According to an eleventh aspect, there is provided a computer program / program product, the computer program / program product being stored in a storage medium, the program / program product being executed by at least one processor to implement the steps of the method according to the first aspect or to implement the steps of the method according to the third aspect.

Advantages of the Invention

[0018] In an embodiment of the present application, the terminal device maps X CSI reports (including information for indicating a beam reporting type in the CSI report and / or related information of a target beam) to uplink control information (Uplink Control Information, UCI) according to a preset mapping rule matching the beam reporting type, and feeds back the mapping result to the network-side device via a target channel (for example, a physical uplink control channel (Physical Uplink Control Channel, PUCCH) or a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH)). Thereby, the network-side device performs communication transmission with the terminal device according to the mapping result reported by the terminal device. In the above process, since the target beam includes N pairs of first beams (N is a positive integer greater than 1) that can be simultaneously received by the terminal device and / or M second beams (M is a positive integer) whose measurement values satisfy a predetermined condition, when the beam reporting type is group-based beam reporting, the method according to the embodiment of the present application enables the terminal device to report multiple pairs of beams simultaneously, rather than being limited to reporting only one pair of beams.

Brief Description of the Drawings

[0019]

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Embodiments for Carrying Out the Invention

[0020] The following clearly describes the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in the present application shall fall within the protection scope of the present application.

[0021] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not for describing a specific order or sequence. It should be understood that such terms are interchangeable when appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, without limiting the number of objects. For example, the first object may be one or a plurality. Note that "and / or" in the description and claims represents at least one of the connected objects, and the character " / " generally represents that the related objects before and after are in an "or" relationship.

[0022] It should be noted that the technology described in the embodiments of this application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be applied to other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of this application are always used interchangeably, and the described technology may be used in the systems and radio technologies mentioned above, or in other systems and radio technologies. The following description describes the New Radio (NR) system for illustrative purposes and uses NR terms in most of the following descriptions. However, these technologies are applicable to applications other than NR system applications, such as the sixth generation (6 thIt may also be applied to a (next-generation, 6G) communication system.

[0023] FIG. 1 shows a system architecture diagram of a wireless communication system to which the embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Here, the terminal 11 may also be referred to as a terminal device or a user equipment (UE). The terminal 11 may be a terminal-side device such as a mobile phone, a tablet personal computer, a laptop computer (or a notebook computer), a personal digital assistant (PDA), a palm-top computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), a wearable device, or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), etc. The wearable device includes a smart watch, a bracelet, earphones, glasses, etc. It should be noted that in the embodiments of the present application, the specific type of the terminal 11 is not limited. The network-side device 12 may be a base station or a core network. Here, the base station may be referred to as a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or other appropriate terms in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0024] Hereinafter, the nouns that appear in this embodiment are interpreted as follows.

[0025] 1. Beam report In a high-frequency scenario of a fifth-generation (5th generation, 5G) communication system (which may also be called a new radio (NR) communication system) or a communication system after 5G (for example, a frequency band of 6 gigahertz (GHz) or higher), a base station and a terminal device can transmit signals via a millimeter-wave frequency band. Since the millimeter-wave frequency band has characteristics of relatively large attenuation and weak diffraction ability, when transmitting signals via the millimeter-wave frequency band, problems such as significant signal attenuation and increased path loss are likely to occur. To avoid these problems, the base station and the terminal device transmit signals by analog beamforming technology. For example, the base station can concentrate the signal into one transmission beam and transmit it to the terminal device, and the terminal device can receive the signal on the reception beam corresponding to this transmission beam, improving the channel quality of the transmission channel between the base station and the terminal device and overcoming problems such as significant signal attenuation and increased path loss due to high-frequency communication.

[0026] In related technologies, there are mainly two types of beam reports, namely group-based beam reports and non-group-based beam reports. Among them, the group-based beam report means that the terminal device reports the beam information that can be received simultaneously by this terminal device. Currently, the protocol only supports the reporting of two CRI or SSBRI and the corresponding layer 1 measurement values (L1-RSRP or L1-SINR). The non-group-based beam report means that the terminal device reports the related information of the beam with the maximum layer 1 measurement value (L1-RSRP or L1-SINR). Currently, the protocol supports reporting at most four CRI or SSBRI and the corresponding L1-RSRP or L1-SINR, and does not require that the beam be received simultaneously by the terminal device.

[0027] 2. Mapping method of CSI report In the related art, it is described that when the groupBasedBeamReporting domain is configured in the CSI Report Config and the report quantity domain is configured as "cri-rsrp" or "cri-sinr", the current CSI report contains information related to the beam.

[0028] When the groupBasedBeamReporting domain is "enabled", the UE can only report a pair of beams including two CMR identifiers (CRI or SSBRI) and the corresponding L1-RSRP or L1-SINR values. When the groupBasedBeamReporting domain is "disabled", the UE may report the CMR identifiers corresponding to 4 beams and the corresponding L1-RSRP or L1-SINR.

[0029] When the number of reported beams is greater than 1, differential reporting is performed for other L1-RSRP values or L1-SINR values other than the maximum value of L1-RSRP or L1-SINR with respect to the maximum value. The specific UCI mapping rules for CSI reports (L1-RSRP) are shown in Table 1, and L1-SINR is similar to this. It should be noted that the positions of CRI or SSBRI correspond to the positions of RSRP, CRI or SSBRI#1 corresponds to RSRP#1, and RSRP#1 is the maximum value among the 4 RSRPs.

[0030]

Table 1

[0031] The UCI bit numbers of the CMR identifier and L1-RSRP are shown in Table 2, and L1-SINR is similar to this.

[0032]

Table 2

Number

Number

[0033] In the following, with reference to the drawings, the mapping of the channel state information CSI report according to the embodiments of the present application will be described in detail by means of several embodiments and their application scenarios.

[0034] FIG. 2 shows a flowchart of a method for mapping a channel state information CSI report according to an embodiment of the present application. As shown in FIG. 2, the method for mapping the channel state information CSI report used by the UE may include step 201.

[0035] Step 201: The terminal device feeds back X CSI reports to the network-side device via a target channel according to a preset mapping rule.

[0036] In an embodiment of the present application, the CSI report includes at least one of information for indicating a beam report type and related information of a target beam.

[0037] In an embodiment of the present application, the preset mapping rule is a mapping rule that matches the beam report type.

[0038] In an embodiment of the present application, the beam report type may include group-based beam reporting, non-group-based beam reporting, and group-based and non-group-based hybrid beam reporting.

[0039] In the embodiments of the present application, the beam reporting type is configured by the network-side device for the terminal device or determined by the terminal device according to a preset rule of the network-side device.

[0040] Exemplarily, the preset rule is a rule for determining which beam reporting type to specifically adopt based on the actual measurement situation of the CSI-RS or SSB resource configured by the network-side device for the terminal device. For example, if there are two pairs of beams that can be simultaneously received by the terminal device on the CSI-RS resource configured by the network-side device, and two beams with very high layer 1 measurement values, and it is detected that the sum of the layer 1 measurement values of one pair of beams that can be simultaneously received is smaller than the minimum value of the layer 1 measurement values of the two beams that cannot be simultaneously received, then hybrid beam reporting is adopted; otherwise, group-based beam reporting is adopted.

[0041] In the embodiments of the present application, the target beam includes at least one of N pairs of first beams that can be simultaneously received by the terminal device and M second beams that meet a predetermined condition, where N is a positive integer greater than or equal to 1, and X, M are positive integers.

[0042] In this way, in the process of the terminal device reporting CSI, since the terminal device can only select and report beams that meet the corresponding conditions based on the beam reporting type configured by the network-side device, the problem that flexible switching between beam reporting and the application scenarios corresponding to the reported beams cannot be realized can be avoided. The terminal device can implement hybrid beam reporting based on groups and non-groups, and perform beam reporting by itself according to the beam reporting type determined by the preset rule of the network-side device, so that the determination method of the beam reporting type can be more diversified.

[0043] Optionally, in the embodiments of the present application, the values of M and N may be configured by a network-side device via Radio Resource Control (RRC) signaling, or may be configured by a network-side device via RRC signaling and selected, determined, and changed via a Medium Access Control Control Element (MAC-CE).

[0044] Optionally, in the embodiments of the present application, the related information of the target beam includes at least one of the following: the target CSI measurement resource indication is a CSI reference signal resource indication (CRI) or a system synchronization block resource indication (SSBRI), and the measured value of the target CSI measurement resource is a layer 1 measured value.

[0045] Exemplarily, the measured value of the target CSI measurement resource is a layer 1 measured value.

[0046] Exemplarily, each CSI measurement resource indication among the target CSI measurement resource indications corresponds to the measured value of one CSI measurement resource. Here, the measured value may be used to determine the communication quality status of the beam related to the target CSI measurement resource indication.

[0047] In one example, the layer 1 measured value may be the Layer 1 reference signal received power (L1-RSRP), i.e., L1-RSRP, or the Layer 1 Signal to Interference plus Noise Ratio (L1-SINR), i.e., L1-SINR.

[0048] Exemplarily, the target CSI measurement resource indication may be used to provide assistance information for beam scheduling for a network-side device.

[0049] Exemplarily, the target CSI measurement resource indication may include a CSI-RS resource indication (CSI-RS Resource Indicator, CRI), or an SSB resource indication (SSB Resource Indicator, SSBRI).

[0050] In the embodiments of the present application, the above-mentioned predetermined condition is that among all the second beams, the second beam whose measurement value can be sorted into the first M ones. Optionally, taking as an example that the terminal device receives and measures a plurality of CSI-RS signals corresponding to the resources indicated by a plurality of CSI-RS resource indications configured by the network-side device, after the terminal device receives and measures a plurality of CSI-RS signals corresponding to the resources indicated by a plurality of CSI-RS resource indications configured by the network-side device, the terminal device selects the CSI-RS signals whose measurement values can be sorted into the first M ones from the plurality of CSI-RS signals, further obtains the corresponding M CSI-RS resource indications, and then the terminal device sorts the selected M CSI-RS resource indications. These M CSI-RS resource indications are sorted based on the magnitude of the measurement values corresponding to the CSI-RS signals, and there is a one-to-one correspondence between the measurement value of each CSI-RS signal and the resource indication of the CSI-RS signal corresponding thereto. Here, the resource indication of the CSI-RS signal with the largest measurement value is sorted first. The resource indications and the corresponding measurement values of the selected M CSI-RS signals are used as the related information of the second beam. Similarly, taking as an example that the terminal device receives and measures a plurality of SSB signals corresponding to the resources indicated by a plurality of SSB resource indications configured by the network-side device, after the terminal device receives and measures a plurality of SSB signals corresponding to the resources indicated by a plurality of SSB resource indications configured by the network-side device, the terminal device selects the SSB signals whose measurement values can be sorted into the first M ones from the plurality of SSB signals, further obtains the corresponding M SSB resource indications, and then sorts the selected M SSB resource indications. These M SSB resource indications are sorted based on the magnitude of the measurement values corresponding to each SSB signal, and there is a one-to-one correspondence between the measurement value of each SSB signal and the resource indication of the SSB signal corresponding thereto. Here, the resource indication of the SSB signal with the largest measurement value is sorted first. The resource indications and the corresponding measurement values of the selected M SSB signals are used as the related information of the second beam.

[0051] In Example 1, when M is equal to 4, if the terminal device receives 10 CSI-RS signals, it measures and calculates the received power or signal-to-interference-plus-noise ratio of these 10 CSI-RS signals, sorts the 10 CSI-RS signals based on the layer 1 reference signal received power or layer 1 signal-to-interference-plus-noise ratio, and the resource indication and measurement values corresponding to the CSI-RS signals sorted into the first 4 ones constitute the related information of the second beam.

[0052] In the embodiments of the present application, the target channel may include PUCCH or PUSCH.

[0053] As can be understood, after the terminal receives the CSI measurement resource configured by the network-side device, on this CSI measurement resource, it receives and measures the CSI-RS signal or SSB signal (hereinafter abbreviated as the reference signal), obtains the measurement value of the above reference signal, and based on the measurement value, determines the CSI-related parameters or beam information required in the communication process of the network-side device as the content in the CSI report, and reports this CSI report to the network-side device via PUCCH or PUSCH. The network-side device communicates with the terminal device according to the communication method indicated in the CSI report. In the process of reporting the CSI report to the network-side device via PUCCH or PUSCH, in order to complete the reporting of the CSI report, it is necessary to perform UCI mapping according to the mapping rule of the mapping preset in the network-side device.

[0054] In the embodiments of the present application, different mapping rules can be used to perform UCI mapping according to the CSI report. Optionally, this UCI mapping rule depends on the information in the CSI report (for example, the information for indicating the beam reporting type in the CSI report and the related information of the target beam in the CSI report). The information in the CSI report is different, and correspondingly, the mapping rules of UCI mapping are also different.

[0055] In the terminal device according to the embodiment of the present application, the terminal device performs UCI mapping on X CSI reports (including information for indicating a beam reporting type in the CSI report and / or related information of a target beam) according to a preset mapping rule matching the beam reporting type, via a target channel (for example, a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH)), and further feeds back to the network-side device. Thereby, the network-side device performs communication transmission with the terminal device according to the mapping result reported by the terminal device. In the above process, since the target beam includes N pairs of first beams (N is a positive integer greater than 1) that can be simultaneously received by the terminal device, and / or M second beams (M is a positive integer) whose measurement values meet a predetermined condition, when the beam reporting type is group-based beam reporting, the method according to the embodiment of the present application enables the terminal device to report multiple pairs of beams simultaneously, rather than being limited to reporting only one pair of beams.

[0056] Optionally, in the embodiment of the present application, when the beam reporting type is configured by the network-side device for the terminal device, the beam reporting type can be changed by the network-side device via MAC-CE.

[0057] In this way, by changing the beam reporting type via MAC-CE, in the related art, to realize the mutual switching of sTRP or mTRP, since the terminal device needs to reconfigure the "groupBasedBeamReporting" domain in the CSI report configuration via RRC signaling, the corresponding method can avoid the problems of large RRC signaling overhead and inflexible switching.

[0058] Optionally, in the embodiments of the present application, when the CSI report includes a target CSI measurement resource indication, the method for mapping a channel state information CSI report according to the embodiments of the present application further includes the following step 202.

[0059] Step 202: The terminal device codes the target CSI measurement resource indication according to a preset coding method.

[0060] Exemplarily, the above target CSI measurement resource indication includes all target CSI measurement resource indications or some target CSI measurement resource indications.

[0061] Exemplarily, the above CSI measurement resource indication may be a CRI or an SSBRI.

[0062] The above preset coding method is coding according to the number of channel measurement resources (CMRs) configured by the terminal device in the CSI measurement resource setting, coding according to the number of CMRs configured by the terminal device in the CSI measurement resource set, coding according to the number of CMRs configured by the terminal device in the CSI measurement resource subset in the CSI measurement resource set, including at least one of the above terminal device performing joint coding according to the CMR resource.

[0063] Exemplarily, when the preset coding method is coding according to the number of CMRs configured by the terminal device in the CSI measurement resource setting, if the CSI measurement resource indication is a CRI and the total number of CMRs configured in the CSI measurement resource setting is K, the resources occupied by the resource indication that one CRI needs to occupy are

Number

[0064] Exemplarily, when a preset coding method is to code according to the number of CMRs configured by the terminal device in the CSI measurement resource set, the CSI measurement resource indication is a CRI, and Z CSI measurement resource sets configured in the CSI measurement resource setting are included, and each CSI measurement resource set

Number

[0065] First method: To indicate the correspondence between the currently reported CRI or SSBRI and the CSI measurement resource set, the terminal device is in the domain of the target CSI measurement resource indication

Number

[0066] Exemplarily, when the target CSI measurement resource indication is a CRI, the terminal device adds the CMR set identifier to which it belongs and extends the CRI domain by

Number

Number

[0067] Second method: Add one domain before the first CSI measurement resource indication to indicate the set of CSI measurement resources corresponding to the first CSI measurement resource indication, map and arrange other CSI measurement resource indications according to a preset mapping rule, and determine the correspondence with the set of CSI measurement resources. Here, the first CSI measurement resource indication is the identifier of the CMR with the largest L1-RSRP or L1-SINR value.

[0068] For the above second method, the correspondence between the target CSI measurement resource indication and the set of CSI measurement resources may be indicated by the method in Example 1 below.

[0069] Example 1: When the number Z of the set of CSI measurement resources configured in the CSI measurement resource setting by the network-side device = 2, the number of reported beams is 4, and the CSI measurement resource indication is CRI (that is, the CSI measurement resource indication includes CRI#1, CRI#2, CRI#3, and CRI#4), the terminal device can determine the correspondence between the target CSI measurement resource indication and the set of CSI measurement resources by the method shown in FIG. 3. Perform UCI mapping with two CRIs as a group, and when the two CRIs respectively correspond to different sets of CSI measurement resources, when the added CRI#1 resource indication domain is 0, it is explained that the CMR corresponding to CRI#1 corresponds to the CSI measurement resource set 0, and the CMR corresponding to CRI#2 paired with CRI#1 corresponds to the CSI measurement resource set 1. Arrange other CRI groups according to the correspondence between the CRI and the TRP in the first CRI group. For example, the CMR corresponding to CRI#3 corresponds to the CSI measurement resource set 0, and the CMR corresponding to CRI#4 corresponds to the CSI measurement resource set 1.

[0070] Exemplarily, when the above-mentioned pre-set coding method is to code according to the number of CMRs configured by the terminal device in the CSI measurement resource subset in the CSI measurement resource set, the terminal may configure one CSI measurement resource set in one CSI measurement resource configuration, and divide the CMRs in one CSI measurement resource set into P CSI measurement resource subsets, where each CSI measurement resource subset is related to the identifier (CORESETPool Index) of a different control resource set pool.

[0071] Furthermore, the terminal device may determine the correspondence between the currently reported target CSI measurement resource indication and the CSI measurement resource subset by the following third method or fourth method.

[0072] Third method: In order to indicate the correspondence between the currently reported target CSI measurement resource indication and the CSI measurement resource subset, in the domain of the target CSI measurement resource indication

Number

[0073] Fourth method: Add one domain for indicating the CSI measurement resource subset corresponding to the first CSI measurement resource indication to the UCI, map and arrange other CSI measurement resource indications according to the rules pre-set by the network, and determine the correspondence with the CSI measurement resource subset, where the first CSI measurement resource indication is the identifier of the CMR with the largest L1-RSRP or L1-SINR value.

[0074] Exemplarily, when the preset coding method is that the terminal device performs joint coding according to the CMR resource, joint coding mapping is performed based on the number of CMRs for all CSI measurement resource indications, that is, one CSI measurement resource indication corresponds to one or more CMRs, and each of the CMRs among them is associated with a different CORESETPoolIndex.

[0075] Furthermore, the terminal device may determine the correspondence between the currently reported target CSI measurement resource indication and the CSI measurement resource subset by the following fifth method.

[0076] Fifth method: The network-side device pre-configures all CMRs in pairs to generate L CMR resource pairs, where L is a positive integer. Here, different CMRs in different CMR resource pairs correspond to different CORESETPoolIndices. At this time, the target CSI measurement resource indication is the identifier after joint coding of the CMR resource pair.

[0077] Example 2: Assume that when the target CSI measurement resource indication is CRI, the total number of CMRs is 4, and the number of CORESETPoolIndices is 2. The values of CORESETPoolIndex are 0 or 1, and every two CMRs are associated with one CORESETPoolIndex. The network-side device pre-configures the CMRs in pairs. For example, as shown in Table 3, the terminal device only needs to report one CRI at the time of reporting.

[0078]

Table 3

[0079] Exemplarily, when the target CSI measurement resource indication is a partial measurement resource indication, all the CSI measurement resource indications may consist of a plurality of partial measurement resource indications. Correspondingly, the preset coding methods for each partial measurement resource indication may be different.

[0080] In one example, the preset coding methods for the target CSI measurement resource indication may include two methods: a method of coding according to the number of CMRs configured by the terminal device in the CSI measurement resource setting, and a method of coding according to the number of CMRs configured by the terminal device in the CSI measurement resource set. For example, if the target CSI measurement resource indication consists of two partial CSI measurement resource indications, the coding method for the first partial CSI measurement resource indication is to code according to the number of CMRs configured by the terminal device in the CSI measurement resource setting, and the coding method for the second partial CSI measurement resource indication is to code according to the number of CMRs configured by the terminal device in the CSI measurement resource set.

[0081] In one example, the preset coding methods for the target CSI measurement resource indication may include two methods: a method of coding according to the number of CMRs in the CSI measurement resource set by the terminal device, and a method of coding according to the number of CMRs configured by the terminal device in the CSI measurement resource subset in the CSI measurement resource set. For example, if the target CSI measurement resource indication consists of two partial CSI measurement resource indications, the coding method for the first partial CSI measurement resource indication is to code according to the number of CMRs in the CSI measurement resource set by the terminal device, and the coding method for the second partial CSI measurement resource indication is to code according to the number of CMRs configured by the terminal device in the CSI measurement resource subset in the CSI measurement resource set.

[0082] In this way, according to the coding method of the above target CSI measurement resource indication (for example, CRI or SSBRI), the CSI measurement resource indication in the current CSI report is coded and mapped by the number of CSI measurement resources in the channel measurement resource set (for example, CMR set). As a result, in the potential framework of multi-TRP CSI, when multiple CSI measurement resource sets are configured to perform multi-TRP CSI measurement and the CSI measurement resource indication is coded and mapped according to the number of CSI measurement resources in the measurement resource set, the problem that the network-side device cannot identify which TRP each of the measurement resources having the same CSI measurement resource indication in the CSI report is from can be avoided.

[0083] Optionally, in the embodiments of the present application, when the above beam report type is configured by the above network-side device or determined by the above terminal device according to a preset rule of the above network-side device, When the above beam report type is group-based beam reporting, the above terminal device selects and reports the related information of N pairs of first beams that can be received simultaneously by the above terminal device. The target CSI measurement resource indication in the related information of each pair of first beam information corresponds to different CSI measurement resources, When the above beam report type is non-group-based beam reporting, the above terminal device selects and reports the related information of M second beams whose measurement values meet a predetermined condition, When the above beam report type includes group-based and non-group-based hybrid beam reporting, the above terminal device selects and reports the related information of the above Q pairs of first beams and the related information of the above W second beams.

[0084] Exemplarily, Q is less than or equal to N, W is less than or equal to M, Q and W can be configured by the network-side device or set based on a preset rule, and Q and W are positive integers.

[0085] Exemplarily, the CSI measurement resource includes any one of a CSI measurement resource configuration, a CSI measurement resource set, and a CSI measurement resource subset.

[0086] Exemplarily, the preset rule may be the preset rule described with reference to the above, or the terminal device may first determine the ratio of Q to W from a preset ratio set preset by the network-side device based on the actual measurement situation, and then determine the values of Q and W according to the maximum reporting beam number Y configured by the network-side device or the default.

[0087] For example, the preset ratio set preset by the network-side device includes three ratios of 2:1, 1:1, and 1:2, and the three ratios respectively correspond to the measurement states of three terminals. Here, when the sum of the layer 1 measurement values of the beams that can be received simultaneously is greater than the maximum layer 1 measurement value of the beams that cannot be received simultaneously, the terminal selects Q:W = 2:1; when the sum of the layer 1 measurement values of the beams that can be received simultaneously is equal to the maximum layer 1 measurement value of the beams that cannot be received simultaneously, the terminal selects Q:W = 1:1; when the sum of the layer 1 measurement values of the beams that can be received simultaneously is less than the maximum layer 1 measurement value of the beams that cannot be received simultaneously, the terminal selects Q:W = 1:2. After the terminal determines the ratio of Q to W, it can determine the specific values of Q and W based on the maximum reporting beam number Y configured by the network-side device or the default.

[0088] Exemplarily, when the beam reporting type is group-based beam reporting, the terminal selects, determines, and reports the related information of N pairs of first beams that can be received simultaneously by itself. Here, the CRI / SSBRI in each pair of first beam pairs respectively corresponds to different CSI measurement resource configurations, or CSI measurement resource sets, or CSI measurement resource subsets.

[0089] Exemplarily, when the beam reporting type is non-group-based beam reporting, the terminal device selects, determines, and reports the related information of the second beam for which M layer 1 measurement values satisfy a predetermined condition.

[0090] Exemplarily, when the beam reporting type includes both group-based and non-group-based hybrid beam reporting, the terminal selects, determines, and reports the related information of N pairs of first beams that can be received simultaneously and the related information of the second beam for which M layer 1 measurement values satisfy a predetermined condition.

[0091] Optionally, in the embodiments of the present application, when the beam reporting type is determined by the terminal device according to a preset rule of the network-side device, the beam reporting type is indicating the beam reporting type by the target domain in the CSI report, and can be indicated by any one of the following methods: indicating the beam reporting type based on the magnitude relationship between the measurement value of the CSI measurement resource in the CSI report and the target measurement threshold, where the target measurement threshold is configured by the network-side device or preset by the network-side device and the terminal device. Here, the target measurement threshold is configured by the network-side device or preset by the network-side device and the terminal device.

[0092] Exemplarily, when the beam reporting type is indicated by the target domain in the CSI report, the beam reporting type may be indicated by two methods: method a and method b.

[0093] Method a: The terminal device expands 2 bits in the domain of the target CSI measurement resource indication to indicate whether the corresponding beam reporting type is group-based beam reporting, non-group-based beam reporting, or group-based and non-group-based hybrid beam reporting.

[0094] Example 3: When the beam report type is a hybrid beam report of group-based and non-group-based, the measured value is the L1-RSRP value, and the target CSI measurement resource indication is CRI#1, CRI#2, CRI#3, CRI#4, as shown in (a) of FIG. 4, the terminal device expands 2 bits in the CRI domain where each CSI measurement resource indication among the target CSI measurement resource indications is located, and is used to indicate the beam report corresponding to the CSI measurement resource indication. Here, 1 indicates a group-based beam report, 0 indicates a non-group-based beam report, and 2 indicates a hybrid beam report of group-based and non-group-based. The network-side device can correctly obtain the beam report types of all the first beams and the beam report types of the second beams by reading the CRI domain.

[0095] Method b: The terminal device adds one 1-bit domain for indicating the beam report type corresponding to the first CSI measurement resource indication (for example, CRI) to the domain of the target CSI measurement resource indication, so that the network-side device can distinguish the target CSI measurement resource indications corresponding to different beam reports and the layer 1 measured values corresponding thereto.

[0096] Example 4: As shown in (b) of FIG. 4, when the beam reporting type is a hybrid beam report of group-based and non-group-based, the measured value is the L1-RSRP value, and the target CSI measurement resource indication is CRI#1, CRI#2, CRI#3, CRI#4, the terminal device arranges the first beam of the group-based beam report and the second beam of the non-group-based beam report according to the magnitude of the L1-RSRP value. Since the L1-RSRP maximum value of the non-group-based report is greater than or equal to the L1-RSRP maximum value of the group-based report, the second beam, that is, CRI#1 and CRI#2, is preferentially arranged. In order for the network-side device to easily know the beam reporting types of the first beam and the second beam, one 1-bit indication domain (i.e., the above target domain) may be added to the start position of the UCI mapping (shown in (a) of FIG. 4). Here, 1 indicates a group-based beam report, 0 indicates a non-group-based beam report, the beam reporting type of CRI#1 is indicated by 1 or 0 in this domain, and the network-side device can correctly obtain all beam information based on this indication domain and the number of the first beam and the second beam. It should be noted that when CRI#1 is the common value selected under the assumption of two reports, the related information of the first beam reported under the group-based report assumption type is preferentially arranged.

[0097] Exemplarily, when the beam reporting type indicates the beam reporting type based on the magnitude relationship between the measured value of the CSI measurement resource in the above CSI report and the target measurement threshold, the beam reporting type is indicated by the following two methods of Method c.

[0098] Solution c: The target measurement threshold of the measured value is preset for the network-side device. Here, the measured value may be a layer 1 measured value, and the target measurement threshold may be a differential threshold of the layer 1 measured value.

[0099] In one example, when all the difference values between the measurement values of all the beams received by the terminal device (for example, the layer 1 measurement value I of CR or the layer 1 measurement value of SSBRI) and the maximum measurement value are all equal to or greater than this target measurement threshold, the content in the CSI report performs UCI mapping according to the group-based beam report. Correspondingly, after the network-side device receives the measurement value of this beam and calculates the difference value with the maximum measurement value, when all the difference values are all equal to or greater than the target measurement threshold, it is considered that the beam information is measured and reported according to the group-based beam report.

[0100] In another example, when all the difference values between the measurement values of all the beams received by the terminal device (for example, the layer 1 measurement value of CRI or the layer 1 measurement value of SSBRI) and the maximum measurement value are all smaller than this target measurement threshold, the content in the CSI report performs UCI mapping according to the non-group-based beam report. Correspondingly, after the network-side device receives the measurement value of this beam and calculates the difference value with the maximum measurement value, when all the difference values are all smaller than the target measurement threshold, it is considered that the beam information is measured and reported according to the non-group-based beam report.

[0101] Furthermore, in the above solution c, it is necessary to report the beam information reported by the terminal device in the form of a beam pair, and all the difference values between the measurement value of the first beam (for example, the layer 1 measurement value of CRI or the layer 1 measurement value of SSBRI) and the measurement value of the second beam in the beam pair in all the beam pairs are set to be equal to or greater than this target measurement threshold. In such a case, the content in the CSI report performs UCI mapping according to the group-based beam report. Conversely, the terminal device can set all the difference values between the measurement value of the first beam (for example, the layer 1 measurement value of CRI or the layer 1 measurement value of SSBRI) and the measurement value of the second beam in the beam pair to be smaller than this target measurement threshold, and the content in the CSI report performs UCI mapping according to the non-group-based beam report.

[0102] Correspondingly, after receiving this beam pair, the network-side device calculates the difference value between the measurement value of the first beam and the measurement value of the second beam in each beam pair. If the difference value is greater than or equal to the target measurement threshold, it is considered that the beam information is reported in group-based beam reporting. Conversely, if the difference value is less than the target measurement threshold, it is considered that the beam information is reported in non-group-based beam reporting.

[0103] Furthermore, when the beam reporting type that the terminal device needs to set is group-based and non-group-based hybrid beam reporting, if the difference value between the measurement value of some beams (e.g., the layer 1 measurement value of CRI or the layer 1 measurement value of SSBRI) among all the beams and the maximum measurement value is greater than or equal to this target measurement threshold (indicating that the beam reporting is group-based beam reporting), and the difference value between the measurement value of other beams (e.g., the layer 1 measurement value of CRI or the layer 1 measurement value of SSBRI) and the maximum measurement value is less than this target measurement threshold (indicating that the beam reporting type is non-group-based beam reporting), the content in the CSI report reported by the terminal device performs UCI mapping according to group-based and non-group-based hybrid beam reporting. Similarly, the terminal device receives and measures all the beams, and if the difference value between the measurement value of the first beam and the measurement value of the second beam in some of the beam pairs is greater than or equal to this target measurement threshold (indicating that the beam reporting type is group-based beam reporting), and the difference value between the measurement value of the first beam and the measurement value of the second beam in other beam pairs is less than this target measurement threshold (indicating that the beam reporting type is non-group-based beam reporting), the content in the CSI report reported by the terminal device performs UCI mapping according to group-based and non-group-based beam reporting.

[0104] Optionally, in the embodiments of the present application, when the beam reporting type is configured by the network-side device for the terminal device or determined by the terminal device according to the preset rules of the network-side device, When the beam reporting type is the group-based beam reporting, the preset mapping rule includes either the first rule or the second rule, wherein the first rule arranges the first CSI measurement resource indication first, and then arranges the CSI measurement resource indications of other beams in order according to the beam pair format, and the first CSI measurement resource indication corresponds to the measurement resource indication of the beam with the largest layer 1 measurement value among the N pairs of first beams. Herein, when the second rule is satisfied, the second rule includes mapping the layer 1 measurement value corresponding to the first CSI measurement resource indication and mapping the layer 1 measurement values of other beams according to the difference value from the layer 1 measurement value corresponding to the first CSI measurement resource indication.

[0105] Exemplarily, when the preset mapping rule is the first rule, the arrangement method of the CSI measurement resource indications is as shown in Example 5.

[0106] Example 5: When the beam reporting type is group-based beam reporting, the CSI resource measurement indications include CRI#1, CRI#2, CRI#3, and CRI#4, the number N of beam pairs that can be received simultaneously reported by the terminal device is = 2, and each beam pair includes two CRIs and the corresponding layer 1 measurement values. The pair of beam pairs that can be received simultaneously consisting of CRI#1 and CRI#2 is placed first, and the pair of beam pairs that can be received simultaneously consisting of CRI#3 and CRI#4 is arranged in order later. Herein, CRI#1 is the measurement resource indication corresponding to the beam with the largest layer 1 measurement value among the four beams.

[0107] Exemplarily, when the preset mapping rule is the second rule, the arrangement method of the layer 1 measurement values corresponding to the CSI measurement resource indication is Example 6.

[0108] Example 6: The beam reporting type is group-based beam reporting, the CSI resource measurement indication includes CRI#1, CRI#2, CRI#3, and CRI#4, the number N of beam pairs that can be received simultaneously reported by the terminal device is = 2, and the number of CMRs included in each beam pair is 2. In this case, the first CRI or SSBRI corresponds to the CRI (i.e., the first CSI measurement resource) with the largest L1-RSRP (i.e., layer 1 measurement value). After directly quantizing this L1-RSRP, it is mapped and arranged at the first position in the layer 1 measurement value sequence. After calculating the difference between other L1-RSRP values and the L1-RSRP maximum value, it is quantized and mapped, and the specific arrangement order corresponds to the arrangement order of the CRI.

[0109] The UCI mapping rule of the CSI report is shown in Figure 5 and is configured by the network-side device. The beam reporting is group-based beam reporting, the number N of beam pairs that can be received simultaneously by the report is = 2, each beam pair includes two CRIs, the number of CMRs of the corresponding layer 1 measurement value is 2, it is a pair of beams that can be received simultaneously by CRI#1 and CRI#2, and since the L1-RSRP value (i.e., layer 1 measurement value) corresponding to CRI#1 is the largest among the four CRIs, this value can be arranged at the first position of the measurement values and directly quantized and mapped. CRI#3 and CRI#4 are another pair of beams that can be received simultaneously, and their L1-RSRP numerical difference values perform differential reporting in descending order.

[0110] It should be noted that in the above Example 4, when the terminal device codes the target CSI measurement resource indication in the way of joint coding mapping, the terminal device only needs to report two CSI measurement resource indications, and it may also report 2 or 4 layer 1 measurement values.

[0111] Optionally, in the embodiments of the present application, when the beam reporting type is the above-mentioned hybrid beam reporting of group-based and non-group-based, the preset mapping rule is either the third rule or the fourth rule, wherein the third rule arranges the second CSI measurement resource indication first, and determines the sorting order of the N pairs of first beams and the M second beams based on the beam reporting type of the beam corresponding to the second CSI measurement resource indication, and the second CSI measurement resource indication is the CSI measurement resource indication corresponding to the beam with the largest layer 1 measurement value among the N pairs of first beams and the M second beams. The fourth rule includes, when the third rule is satisfied, mapping the layer 1 measurement value corresponding to the second CSI measurement resource indication, and mapping the layer 1 measurement values of other beams according to the difference value from the layer 1 measurement value corresponding to the second CSI measurement resource indication.

[0112] Exemplarily, when the preset mapping rule is the third rule, the CSI measurement resource indication arrangement method is Example 7.

[0113] Example 7: When the beam reporting type is a non-group-based and group-based hybrid beam report, the CSI resource measurement indication includes CRI#1, CRI#2, CRI#3, and CRI#4, and it is assumed that a pair of beams (i.e., N = 1), that is, the two beams with the highest L1-RSRP (i.e., layer 1 measurement value), that can be simultaneously received by the terminal device (each beam is associated with one CORESETPoolIndex and M = 2) are supported. If the beam reporting type of the CRI (CSI measurement resource indication) corresponding to RSRP#1 (i.e., the largest layer 1 measurement value) is a non-group-based beam report, the terminal device arranges CRI#1 corresponding to RSRP#1 and CRI#2 corresponding to the second largest measured value RSRP#2 at the beginning of all measurement resource indications in the CSI report, and arranges CRI#3 and CRI#4 in pairs in order after CRI#2. Conversely, the terminal device needs to place the reported CRI#3 and CRI#4 at the beginning of all measurement resource indications and place CRI#1 and CRI#2 after CRI#4 respectively based on the two beam reporting types.

[0114] Exemplarily, when the preset mapping rule is the fourth rule, the arrangement method of the layer 1 measurement values corresponding to the target CSI measurement resource indication is as follows. The largest layer 1 measurement value (i.e., the value of L1-RSRP or the value of L1-SINR), that is, RSRP#1, is directly quantized and mapped and arranged at the first position of the layer 1 measurement value sequence. After calculating the difference between the other layer 1 measurement values and the maximum value among the layer 1 measurement values, it is quantized and mapped, and the specific arrangement order corresponds to the arrangement order of the CRI or SSBRI.

[0115] Example 8: When the beam report configured in the network is a non-group-based beam report and supports the reporting of four beams, the UCI mapping rule of the CSI report is shown in FIG. 6. CRI#1, CRI#2, CRI#3, and CRI#4 are the CMR identifiers with the four highest L1-RSRP values (measurement values), and since the L1-RSRP value corresponding to CRI#1 is the largest among the four CRIs, this value is arranged first in the measurement values and can be directly quantized and mapped. For the L1-RSRP corresponding to CRI#2, CRI#3, and CRI#4, differential reporting is used.

[0116] It should be noted that when mapping CRI by joint coding, only two CRIs need to be reported, but it is necessary to report two or four L1-RSRP values.

[0117] Optionally, in the embodiments of the present application, the terminal device adds a first indication domain before the indication domain corresponding to the third CSI measurement resource indication, or the terminal device expands the second indication domain corresponding to the third CSI measurement resource indication, and the first indication domain and the second indication domain are used to indicate the beam report type.

[0118] Exemplarily, the third CSI measurement resource indication is any one of the second CSI measurement resource indication and all CSI measurement resource indications in the N pairs of first beams and the M second beams.

[0119] In one example, when the terminal device adds a first indication domain before the indication domain corresponding to the third CSI measurement resource indication, the terminal device may add the first indication domain before each CSI measurement resource indication, that is, the first indication domain may be added before all CSI measurement resource indications in the above N pairs of first beams and the above M second beams. The terminal device may also add the first indication domain only before the first CSI measurement resource indication, that is, the terminal device may add the first indication domain only before the second CSI measurement resource indication. Here, the first indication domain may be a domain with an occupied resource of 1 bit.

[0120] In another example, when the terminal device expands the second indication domain corresponding to the third CSI measurement resource indication, the terminal device may expand the second indication domain in each CSI measurement resource, that is, the second indication domain may be expanded in all CSI measurement resource indications in the above N pairs of first beams and the above M second beams. The terminal device may also expand the second indication domain only in the first CSI measurement resource indication, that is, the terminal device may expand the second indication domain before the second CSI measurement resource indication. Here, the second indication domain may be a domain with an occupied resource of 1 bit.

[0121] In this way, the terminal device can indicate the beam reporting type by adding an indication domain to the CSI measurement resource indication. After receiving this CSI report including the CSI measurement resource indication, the network-side device can analyze the beam reporting type and analyze the CSI report according to the mapping rule corresponding to the beam reporting type.

[0122] Optionally, in the embodiments of the present application, when the beam reporting type is determined by the terminal device according to a preset rule of the network-side device and the beam reporting type is the group-based beam reporting, the preset mapping rule is The terminal device arranges the first CSI measurement resource indication corresponding to the beam with the largest layer 1 measurement value among the above N pairs of first beams first, and then arranges the CSI measurement resource indications of the first other beams in order according to the beam pair format. The above first other beam pairs include beam pairs other than the beam pair including the beam with the largest layer 1 measurement value among the N pairs of first beams.

[0123] Exemplarily, the first beam pair generated by the above first other beam pairs satisfies the first relationship, and the first relationship is a certain magnitude relationship between the layer 1 measurement values within the beam pair.

[0124] Exemplarily, the above certain magnitude relationship may be pre-configured by the network-side device and the terminal device, or may be set by default.

[0125] Exemplarily, the first beam pair may include a pair of beam pairs or multiple pairs of beam pairs. For example, when N is 6, the terminal device pairs these 6 beams two by two to form a total of 3 pairs of beam pairs. Here, the layer 1 measurement value corresponding to the first beam in the first beam pair is the largest, and the other beam pairs are the above first other beam pairs, with a total of two beam pairs. Furthermore, the measurement values of the first beams in each pair of the two beam pairs are both larger than the measurement values of the second beams, that is, the measurement values of the first beams are both larger than the measurement values of the second beams, which is a certain magnitude relationship.

[0126] Example 9: Assume that the CSI measurement resource indication includes CRI#1, CRI#2, CRI#3, and CRI#4, and each of the above four CRIs corresponds to a layer 1 measurement value. Here, CRI#1 and CRI#2 constitute a pair of beam pairs that can be received simultaneously, and CRI#3 and CRI#4 constitute a pair of beam pairs that can be received simultaneously. Here, CRI#1 is a CMR identifier corresponding to the maximum value of L1-RSRP, and the value of L1-RSRP corresponding to CRI#3 is not less than the value of L1-RSRP corresponding to CRI#4 (i.e., the above certain magnitude relationship).

[0127] As can be understood, in Examples 5 to 9, the above CRI#1, CRI#2, CRI#3, and CRI#4 may be SSBRI#1, SSBRI#2, SSBRI#3, and SSBRI#4. The value of the above L1-RSRP may also be the value of L1-SINR.

[0128] Furthermore, the arrangement order of the layer 1 measurement values corresponds to the arrangement order of the CSI measurement resource indication. Here, the maximum value of the layer 1 measurement values is directly quantized and mapped, but the difference between other measurement values and the maximum value is calculated and then quantized and mapped. In this way, the terminal device can save the overhead of occupied resources.

[0129] Furthermore, the terminal device reports the related information of the first beam according to the UCI mapping rule that satisfies the above first condition, and after the network-side device receives the related information of the first beam of the UCI mapping rule that satisfies the first condition, it can know that the received beam information is reported in group-based beam reporting and can be used for mTRP transmission.

[0130] Optionally, in the embodiments of the present application, when the beam reporting type is determined by the terminal device according to a preset rule of the network-side device and the beam reporting type is non-group-based beam reporting, the preset mapping rule is The terminal device arranges the second CSI measurement resource indication corresponding to the beam with the largest layer 1 measurement value among the M second beams first, and then arranges the CSI measurement resource indications of the other second beams in order. The other second beams are the beams other than the beam with the largest layer 1 measurement value among the M second beams. The terminal device includes generating second beam pairs by pairing the second beams two by two. Here, the second beam pair satisfies a second condition, and the second condition is that there is at least one pair of CSI measurement resource indications in the second beam pair with a certain magnitude relationship between the corresponding layer 1 measurement values.

[0131] Exemplarily, the above-mentioned predetermined conditions may be referred to the previous description. Here, it will not be described further.

[0132] Exemplarily, the CSI measurement resource indication of the first beam in the first beam pair is the CMR identifier with the largest layer 1 measurement value, which directly maps the maximum value among the layer 1 measurement values, but performs quantization mapping after calculating the difference between the other layer 1 measurement values and the maximum layer 1 measurement value.

[0133] In one example, in the related information of the second beam, after generating second beam pairs by pairing the second beams two by two, the first beam pair among the second beam pairs includes the second CSI measurement resource indication and the CSI measurement resource indication rearranged to the second position among the CSI measurement resource indications. There is at least one group of CSI measurement resource indications that satisfy the condition that the layer 1 measurement value corresponding to the first CSI measurement resource indication in the group is smaller than the layer 1 measurement value corresponding to the second CSI measurement resource indication in the group. Furthermore, the mapping order of all layer 1 measurement values corresponds to its CSI measurement resource indication.

[0134] Exemplarily, the CSI measurement resource indication in the above second beam pair may correspond to different CSI measurement resource settings, or a set of CSI measurement resources, or a subset of CSI measurement resources.

[0135] Furthermore, when the terminal device reports the related information of the first beam according to the UCI mapping rule that satisfies the above second condition, after the network-side device receives the related information of the first beam of the UCI mapping rule that satisfies the second condition, it can know that the received beam information is reported in non-group-based beam reporting and can be used for sTRP transmission.

[0136] Optionally, in the embodiments of the present application, when the beam reporting type is determined by the terminal device according to a preset rule of the network-side device and the beam reporting type is a hybrid beam reporting of group-based and non-group-based, the preset mapping rule includes the terminal device pairs the M second beams two by two to generate T pairs of second beams, and arranges the N pairs of first beams in front of the T pairs of second beams, wherein the N pairs of first beams and the T pairs of second beams satisfy a third condition, and the third condition includes the layer 1 measurement values corresponding to the CSI measurement resource indications arranged first in each pair of the N pairs of first beams are sorted in descending order, and the layer 1 measurement values corresponding to the CSI measurement resource indications corresponding to each pair of first beams are sorted in descending order, and the layer 1 measurement values corresponding to the CSI measurement resource indications arranged first in each pair of the N pairs of first beams are non-differentially mapped. The first CSI measurement resource indication arranged in each pair of the second beams of the T pairs is sorted in descending order of the layer 1 measurement values corresponding thereto, and the CSI measurement resource indications corresponding to each pair of the second beams are sorted in descending order of the layer 1 measurement values corresponding thereto, and the layer 1 measurement values corresponding to the first CSI measurement resource indication arranged in each pair of the second beams of the T pairs are non-differentially mapped.

[0137] Exemplarily, the third relationship is such that the terminal device sorts the N pairs of first beams in descending order based on the layer 1 measurement values corresponding to the first CSI measurement resource indication arranged in each pair of the first beams, and the CSI measurement resource indications corresponding to each pair of the first beams are sorted in descending order of the corresponding layer 1 measurement values, and the layer 1 measurement values corresponding to the first CSI measurement resource indication arranged in each pair of the first beams among the N pairs of first beams are non-differentially mapped. Then, the terminal device further sorts the T pairs of second beams in descending order based on the layer 1 measurement values corresponding to the first CSI measurement resource indication arranged in each pair of the second beams, and the CSI measurement resource indications corresponding to each pair of the second beams are sorted in descending order of the corresponding layer 1 measurement values, and the first CSI measurement resource indication arranged in each pair of the second beams among the T pairs of second beams is non-differentially mapped.

[0138] Exemplarily, the two CSI measurement resource indications in each pair of beams among the N pairs of first beams and the T pairs of second beams may correspond to different CSI measurement resource settings, or CSI measurement resource sets, or CSI measurement resource subsets.

[0139] Exemplarily, for each pair of beams among the above N pairs of first beams and T pairs of second beams, the layer 1 measurement value corresponding to the CSI measurement resource indication of the second beam may be non-differentially mapped, or may be calculated as a difference from the layer 1 measurement value corresponding to the CSI measurement resource indication of the first beam and then mapped. By setting the layer 1 measurement value corresponding to the CSI measurement resource indication of the second beam as the difference value from the layer 1 measurement value corresponding to the CSI measurement resource indication of the first beam, the occupied resource overhead can be saved.

[0140] Furthermore, after the terminal device reports the related information of the first beam and the related information of the second beam according to the UCI mapping rule that satisfies the above third condition, after the network-side device receives the related information of the first beam and the related information of the second beam of the UCI mapping rule that satisfies the third condition, it can know that the received beam information is reported in a hybrid beam report of group-based and non-group-based.

[0141] Optionally, when an inversion situation appears (that is, there is at least one layer 1 measurement value corresponding to the first measurement resource indication in the beam pair with a later arrangement position that is smaller than the layer 1 measurement value corresponding to the first measurement resource indication in the beam pair with a previous arrangement position), it can be known that the received beam information is reported based on a hybrid beam report, the CRI or SSBRI before the position where the inversion situation appears for the first time is reported in a group-based manner and can be used for mTRP transmission, and the CRI or SSBRI after this position is reported in a non-group-based manner and can be used for sTRP transmission.

[0142] FIG. 7 shows a flowchart of a mapping method for channel state information CSI reports according to an embodiment of the present application. As shown in FIG. 7, the mapping method for channel state information CSI reports used in the network-side device may include step 301 and step 302.

[0143] Step 301: The network-side device receives the CSI report reported by the terminal device.

[0144] Step 302: The network-side device analyzes the CSI report based on the beam reporting type.

[0145] In the embodiment of the present application, the CSI report includes at least one of information for indicating the beam reporting type and related information of the target beam. The target beam includes at least one of N pairs of first beams that can be simultaneously received by the terminal device and M second beams whose measurement values meet a predetermined condition. N is a positive integer greater than or equal to 1, M is a positive integer, and the beam reporting type is configured for the terminal device by the network-side device or determined by the terminal device according to a preset rule of the network-side device.

[0146] In the embodiment of the present application, the beam reporting type includes at least one of group-based beam reporting, non-group-based beam reporting, and group-based and non-group-based hybrid beam reporting.

[0147] In the network-side device according to the embodiment of the present application, after receiving the CSI report reported by the terminal device, the network-side device can analyze the CSI report based on the beam reporting type. In this process, the network-side device can receive CSI reports of various beam reporting methods provided by the terminal device and flexibly analyze them according to the analysis method corresponding to the corresponding preset mapping method.

[0148] Optionally, in the embodiment of the present application, before step 301, the mapping method of the channel state information CSI report according to the embodiment of the present application may further include the following step 303 or step 304.

[0149] Step 303: The network-side device configures the beam reporting type in the CSI report configuration.

[0150] Step 304: The network-side device configures the beam reporting type for the terminal device by presetting a preset rule corresponding to the beam reporting type.

[0151] Optionally, in the embodiments of the present application, when the network-side device does not configure the beam reporting type in the CSI report configuration, before the above step 302, the method for mapping the channel state information CSI report according to the embodiments of the present application may further include the following step 305.

[0152] Step 305: The network-side device determines the beam reporting type of the above CSI report by a preset method, Exemplarily, the above preset method includes querying the beam reporting type indicated by the target domain, querying the magnitude relationship between the measured value of the CSI measurement resource in the above CSI report for indicating the beam reporting type and the target measurement threshold, querying whether any of the N pairs of first beams and / or the above M second beams satisfy the first condition, or the second condition, or the third condition.

[0153] Optionally, in the embodiments of the present application, the above first condition is that the first beam pair generated by the above first other beam satisfies the first relationship, the first relationship is a certain magnitude relationship between the layer 1 measured values within the above first other beam pair, and the above first other beam pair includes other beam pairs other than the beam pair including the beam with the largest layer 1 measured value among the N pairs of first beams. The second condition is that there are at least a pair of CSI measurement resource indications with a certain magnitude relationship existing between the corresponding layer 1 measurement values in the second beam pair, and there are at least a pair of CSI measurement resource indications with a certain magnitude relationship existing between the corresponding layer 1 measurement values in the second beam pair, and the second beam pair is a beam pair generated by the terminal device pairing two second beams together. The third condition is that the N pairs of first beams are arranged in front of the T pairs of second beams, and the layer 1 measurement values corresponding to the CSI measurement resource indications arranged first in each pair of first beams among the N pairs of first beams are sorted in descending order, and the layer 1 measurement values corresponding to the CSI measurement resource indications corresponding to each pair of first beams are sorted in descending order, and the layer 1 measurement values corresponding to the CSI measurement resource indications arranged first in each pair of first beams among the N pairs of first beams are non-differentially mapped, and the layer 1 measurement values corresponding to the CSI measurement resource indications arranged first in each pair of second beams among the T pairs of second beams are sorted in descending order, and the layer 1 measurement values corresponding to the CSI measurement resource indications corresponding to each pair of second beams are sorted in descending order, and the layer 1 measurement values corresponding to the CSI measurement resource indications arranged first in each pair of second beams among the T pairs of second beams are non-differentially mapped.

[0154] Exemplarily, the above N pairs of first beams are sorted in descending order based on the layer 1 measurement values corresponding to the CSI measurement resource indications arranged first in each pair of first beams, and the CSI measurement resource indications corresponding to each pair of first beams are sorted in descending order based on the layer 1 measurement values corresponding thereto, and the layer 1 measurement values corresponding to the CSI measurement resource indications arranged first in each pair of first beams among the above N pairs of first beams are non-differentially mapped. The above T pairs of second beams are sorted in descending order of the T pairs of second beams based on the layer 1 measurement values corresponding to the CSI measurement resource indications arranged first in each pair of second beams, and the CSI measurement resource indications corresponding to each pair of second beams are sorted in descending order based on the layer 1 measurement values corresponding thereto, and the CSI measurement resource indications arranged first in each pair of second beams among the above T pairs of second beams are non-differentially mapped.

[0155] Optionally, in the embodiments of the present application, when the preset method is to query whether the above N pairs of first beams and / or the above M second beams meet the first condition, or the second condition, or the third condition, the network-side device determines the beam reporting type of the above CSI report according to the preset method, when the network-side device determines that the measurement value corresponding to the target CSI measurement resource indication in the related information of the above target beam meets the first condition, determining that the above beam reporting type is a group-based beam report; when the network-side device determines that the measurement value corresponding to the target CSI measurement resource indication in the related information of the above target beam meets the second condition, determining that the above beam reporting type is a non-group-based beam report; when the network-side device determines that the measurement value corresponding to the target CSI measurement resource indication in the related information of the above target beam meets the third condition, determining that the above beam reporting type includes the above group-based beam report and the above non-group-based beam report.

[0156] Exemplarily, when the network-side device determines that the beam reporting type is group-based beam reporting, when the network-side device subsequently communicates with the terminal device, it is transmitted by the mTRP.

[0157] Exemplarily, when the network-side device determines that the beam reporting type is non-group-based beam reporting, when the network-side device subsequently communicates with the terminal device, it is transmitted by the sTRP.

[0158] Exemplarily, when the network-side device determines that the beam reporting type is hybrid beam reporting of group-based and non-group-based, the network-side device uses the part of the measurement resource indication corresponding to the group-based reporting hypothesis type for mTRP transmission, and transmits the part of the measurement resource indication corresponding to the non-group-based reporting hypothesis type by the sTRP.

[0159] It should be noted that after receiving the PUCCH / PUSCH carrying the UCI, the network-side device combines the related information of two adjacent beams in this UCI. If there is an inversion situation (at least one exists where the layer 1 measurement value corresponding to the first measurement resource indication in the beam pair with a later arrangement position is smaller than the layer 1 measurement value corresponding to the first measurement resource indication in the beam pair with a previous arrangement position), it can be known that the received beam information is reported based on the beam reporting type of the hybrid beam reporting, the CRI or SSBRI before the position where the inversion situation first appears is reported in a group-based manner and can be used for mTRP transmission, and the CRI or SSBRI after this position is reported in a non-group-based manner and can be used for sTRP transmission.

[0160] It should be noted that the execution entity of the method for mapping channel state information CSI reports according to the embodiments of the present application may be a device for mapping channel state information CSI reports, or a control module for executing the method for mapping channel state information CSI reports in the device for mapping channel state information CSI reports. In the embodiments of the present application, taking the device for mapping channel state information CSI reports executing the method for mapping channel state information CSI reports as an example, the device for mapping channel state information CSI reports according to the embodiments of the present application will be described.

[0161] The embodiments of the present application provide a device for mapping channel state information CSI reports. As shown in FIG. 8, the device 400 for mapping channel state information CSI reports includes a feedback module 401. The feedback module 401 is used to feedback X CSI reports to a network-side device via a target channel according to a preset mapping rule. Here, at least one of information for indicating a beam reporting type and related information of a target beam is included in the CSI report. The target beam includes at least one of N pairs of first beams that can be simultaneously received by the terminal device and M second beams whose measurement values meet a predetermined condition. N is a positive integer greater than or equal to 1, and X and M are positive integers. The preset mapping rule is a mapping rule that matches the beam reporting type.

[0162] In the channel state information CSI report mapping device according to the embodiment of the present application, the channel state information CSI report mapping device performs UCI mapping according to a preset mapping rule that matches the beam report type, for X CSI reports (including information for indicating the beam report type in the CSI report and / or related information of the target beam), and via a target channel (for example, a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH)), and further feeds back to the network side device, whereby the network side device performs communication transmission with the channel state information CSI report mapping device according to the mapping result reported by the channel state information CSI report mapping device. In the above process, since the target beam includes N pairs of first beams that can be simultaneously received by the above terminal device (N is a positive integer greater than 1) and / or M second beams whose measurement values satisfy a predetermined condition (M is a positive integer), when the beam report type is a group-based beam report, the method according to the embodiment of the present application enables the terminal device to report multiple pairs of beams simultaneously, not limited to reporting only one pair of beams.

[0163] Optionally, in the embodiment of the present application, the beam report type includes any one of a group-based beam report, a non-group-based beam report, and a hybrid beam report of group-based and non-group-based, and the beam report type is configured for the terminal device by the network side device or determined by the terminal device according to a preset rule of the network side device.

[0164] Optionally, in the embodiments of the present application, the related information of the target beam includes at least one of a target CSI measurement resource indication and a measurement value of the target CSI measurement resource, where the target CSI measurement resource indication is a CSI reference signal resource indication CRI or a system synchronization block resource indication SSBRI, and the measurement value of the target CSI measurement resource is a layer 1 measurement value.

[0165] Optionally, in the embodiments of the present application, the values of M and N are configured by the network-side device via RRC signaling, or can be determined and changed by being configured via RRC signaling and selected via MAC-CE.

[0166] Optionally, in the embodiments of the present application, when the beam reporting type is configured by the network-side device for the terminal device, the beam reporting type can be changed by the network-side device via MAC-CE.

[0167] Optionally, in the embodiments of the present application, when the target CSI report includes a target CSI measurement resource indication, the apparatus 400 further includes a coding module 402, and the coding module is used to code the target CSI measurement resource indication according to a preset coding method, where the target CSI measurement resource indication includes all target CSI measurement resource indications or some target CSI measurement resource indications, and the preset coding method includes at least one of coding according to the number of channel measurement resources CMR configured in the CSI measurement resource setting, coding according to the number of CMR configured in the CSI measurement resource set, coding according to the number of CMR configured in the CSI measurement resource subset in the CSI measurement resource set, and performing joint coding according to the CMR resource.

[0168] Optionally, in the embodiments of the present application, when the beam reporting type is configured by the network-side device or determined by the terminal device according to a preset rule of the network-side device, the apparatus 400 further includes a selection module 403. When the beam reporting type is group-based beam reporting, the selection module 403 is used to select and report the related information of N pairs of first beams that can be simultaneously received by the terminal device. The target CSI measurement resource indication in each pair of first beam information corresponds to a different CSI measurement resource. When the beam reporting type is non-group-based beam reporting, the selection module 403 is further used to select and report the related information of M second beams whose measurement values meet a predetermined condition. When the beam reporting type includes both group-based and non-group-based hybrid beam reporting, the selection module 403 is further used to select and report the related information of Q pairs of first beams and the related information of W second beams, where Q is less than or equal to N, W is less than or equal to M, Q and W can be configured by the network-side device or set based on a preset rule, and Q and W are positive integers. Here, the CSI measurement resource includes any one of a CSI measurement resource configuration, a CSI measurement resource set, and a CSI measurement resource subset.

[0169] Optionally, in the embodiments of the present application, when the beam reporting type is determined by the terminal device according to a preset rule of the network-side device, the beam reporting type can be indicated in one of the following two ways: by indicating the beam reporting type by the target domain in the CSI report, or by indicating the beam reporting type based on the magnitude relationship between the measurement value of the CSI measurement resource in the CSI report and the target measurement threshold. Here, the target measurement threshold is configured by the network-side device or preset by the network-side device and the terminal device.

[0170] Optionally, in the embodiments of the present application, when the beam reporting type is configured by the network-side device for the terminal device or determined by the terminal device according to a preset rule of the network-side device, if the beam reporting type is the group-based beam reporting, the preset mapping rule includes any one of a first rule and a second rule. Here, the first rule arranges the first CSI measurement resource indication first, and then arranges the CSI measurement resource indications of other beams in order according to the form of beam pairs. The first CSI measurement resource indication corresponds to the measurement resource indication of the beam with the largest layer 1 measurement value among the N pairs of first beams. Here, the second rule includes, when the first rule is satisfied, mapping the layer 1 measurement value corresponding to the first CSI measurement resource indication, and mapping the layer 1 measurement values of other beams according to the difference value from the layer 1 measurement value corresponding to the first CSI measurement resource indication.

[0171] Optionally, in the embodiments of the present application, when the beam reporting type is the hybrid beam reporting of group-based and non-group-based, the preset mapping rule includes any one of a third rule and a fourth rule. Here, the third rule arranges the second CSI measurement resource indication first, and determines the arrangement order of the N pairs of first beams and the M second beams based on the beam reporting type of the beam corresponding to the second CSI measurement resource indication. The second CSI measurement resource indication corresponds to the CSI measurement resource indication of the beam with the largest layer 1 measurement value among the N pairs of first beams and the M second beams. The fourth rule includes, when the third rule is satisfied, mapping the layer 1 measurement value corresponding to the second CSI measurement resource indication, and mapping the layer 1 measurement values of other beams according to the difference value from the layer 1 measurement value corresponding to the second CSI measurement resource indication.

[0172] Optionally, in an embodiment of the present application, the apparatus 400 further includes an additional module 404 and an extension module 405. The additional module 404 is used to add a first indication domain before an indication domain corresponding to a third CSI measurement resource indication, or the extension module 405 is used to extend a second indication domain corresponding to the third CSI measurement resource indication. The first indication domain and the second indication domain are used to indicate a beam reporting type. Here, the third CSI measurement resource indication is any one of the second CSI measurement resource indication and all CSI measurement resource indications in the N pairs of first beams and the M second beams.

[0173] Optionally, in an embodiment of the present application, the beam reporting type is determined by the terminal device according to a preset rule of the network-side device. The preset mapping rule arranges the first CSI measurement resource indication corresponding to the beam with the largest layer 1 measurement value among the N pairs of first beams first, and then arranges the CSI measurement resource indications of the first other beams in order according to the beam pair format. The first other beam pairs include beam pairs other than the beam pair including the beam with the largest layer 1 measurement value among the N pairs of first beams. Here, the first beam pair generated by the first other beam pair satisfies a first relationship, and the first relationship is a certain magnitude relationship between the layer 1 measurement values within each beam pair of the first beam pair.

[0174] Optionally, in the embodiments of the present application, the beam reporting type is determined by the terminal device according to a preset rule of the network-side device, and when the beam reporting type is the non-group-based beam reporting, the preset mapping rule arranges the CSI measurement resource indication corresponding to the beam with the largest layer 1 measurement value among the M second beams first, and then arranges the CSI measurement resource indications of the other second beams in order, where the other second beams are the beams other than the beam with the largest layer 1 measurement value among the M second beams, and generating second beam pairs by pairing the second beams two by two, where the second beam pairs satisfy a second condition, and the second condition is that there is at least one pair of CSI measurement resource indications in the second beam pairs that have a certain magnitude relationship between the corresponding layer 1 measurement values.

[0175] Optionally, in the embodiments of the present application, the beam reporting type is determined by the terminal device according to a preset rule of the network-side device, and when the beam reporting type is a hybrid beam reporting of group-based and non-group-based, the preset mapping rule includes pairing the M second beams two by two to generate T pairs of second beams, where the N pairs of first beams and the T pairs of second beams satisfy a third condition, and the third condition includes that the N pairs of first beams are arranged in front of the T pairs of second beams, and the CSI measurement resource indicators corresponding to the first CSI measurement resource indicators arranged first in each pair of the N pairs of first beams are rearranged in descending order of the layer 1 measurement values, and the CSI measurement resource indicators corresponding to each pair of first beams are rearranged in descending order of the layer 1 measurement values, and the CSI measurement resource indicators corresponding to the first CSI measurement resource indicators arranged first in each pair of the N pairs of first beams are non-differentially mapped, and the CSI measurement resource indicators corresponding to the first CSI measurement resource indicators arranged first in each pair of the T pairs of second beams are rearranged in descending order of the layer 1 measurement values, and the CSI measurement resource indicators corresponding to each pair of second beams are rearranged in descending order of the layer 1 measurement values, and the CSI measurement resource indicators corresponding to the first CSI measurement resource indicators arranged first in each pair of the T pairs of second beams are non-differentially mapped.

[0176] Embodiments of this application provide a mapping device for channel state information (CSI) reports. As shown in FIG. 9, this mapping device 500 for CSI reports includes a receiving module 501 and an analyzing module 502. The receiving module 501 is used to receive the CSI report reported by a terminal device. The analyzing module 502 is used to analyze the CSI report received by the receiving module 501 based on a beam reporting type. Here, the CSI report includes at least one of information for indicating the beam reporting type and related information of a target beam. The target beam includes at least one of N pairs of first beams that can be simultaneously received by the terminal device and M second beams whose measurement values satisfy a predetermined condition. N is a positive integer greater than 1, and M is a positive integer. The beam reporting type is configured for the terminal device by a network-side device or determined by the terminal device according to a preset rule of the network-side device. The beam reporting type includes at least one of group-based beam reporting, non-group-based beam reporting, and hybrid beam reporting that combines group-based and non-group-based reporting.

[0177] In the mapping device for CSI reports according to the embodiments of this application, after receiving the CSI report reported by a terminal device, the mapping device for CSI reports can analyze the CSI report based on a beam reporting type. In the above process, the mapping device for CSI reports can receive CSI reports of various beam reporting methods provided by the terminal device and flexibly analyze them according to an analysis method corresponding to a corresponding preset mapping method.

[0178] Optionally, in the embodiments of the present application, the apparatus 500 further includes a reporting module 503 and a configuration module 504. The reporting module 503 is used to configure a beam reporting type in a CSI report configuration, or the configuration module 504 is used to configure a beam reporting type by presetting a preset rule corresponding to the beam reporting type for the terminal device.

[0179] Optionally, in the embodiments of the present application, when the network-side device does not configure a beam reporting type in a CSI report configuration, the apparatus further includes a determination module 505. The determination module is used to determine the beam reporting type of the CSI report by a preset method. The preset method includes querying a beam reporting type indicated by a target domain, querying a magnitude relationship between a measurement value of a CSI measurement resource in the CSI report for indicating the beam reporting type and a target measurement threshold, and querying whether N pairs of first beams and / or the M second beams satisfy a first relationship, a second relationship, or a third relationship.

[0180] Optionally, in the embodiments of the present application, the first condition is that there is a certain magnitude relationship between the layer 1 measurement values within each beam pair of the first beam pair generated by the first other beam pair. The first other beam pair includes other beam pairs other than the beam pair including the beam with the largest layer 1 measurement value among the N pairs of first beams. The second condition is that there are at least one pair of CSI measurement resource indications with a certain magnitude relationship between the corresponding layer 1 measurement values in the second beam pair. The second beam pair is a beam pair generated by the terminal device pairing two second beams together. The third condition includes that the layer 1 measurement values corresponding to the CSI measurement resource indications arranged first in each pair of the N pairs of first beams are sorted in descending order, and the layer 1 measurement values corresponding to the CSI measurement resource indications corresponding to each pair of first beams are sorted in descending order, and the layer 1 measurement values corresponding to the CSI measurement resource indications arranged first in each pair of the T pairs of second beams are sorted in descending order, and the layer 1 measurement values corresponding to the CSI measurement resource indications corresponding to each pair of second beams are sorted in descending order.

[0181] Optionally, in the embodiments of the present application, when the preset method is to query whether the N pairs of first beams and / or the M second beams satisfy the first condition, or the second condition or the third condition, specifically, when the determination module 505 determines that the measurement value corresponding to the target CSI measurement resource indication in the related information of the target beam satisfies the first condition, it is used to determine that the beam reporting type is group-based beam reporting. Specifically, when the determination module 505 determines that the measurement value corresponding to the target CSI measurement resource indication in the related information of the target beam satisfies the second condition, it is used to determine that the beam reporting type is non-group-based beam reporting. Specifically, when the determination module 505 determines that the measurement value corresponding to the target CSI measurement resource indication in the related information of the target beam satisfies the third condition, it is used to determine that the beam reporting type includes the group-based beam reporting and the non-group-based beam reporting.

[0182] The channel state information CSI report mapping device in the embodiments of the present application may be a device, or a device or electronic device having an operating system, a component in a terminal, an integrated circuit, or a chip. This device or electronic device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminal 11 listed above. The non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a deposit and payment machine, or a self-service machine, etc. The embodiments of the present application are not specifically limited.

[0183] The channel state information CSI report mapping device according to the embodiments of the present application realizes each process realized by the method embodiments from FIG. 1 to FIG. 7, and can achieve the same technical effect. To avoid repeated description, it will not be described further here.

[0184] Optionally, as shown in FIG. 10, an embodiment of the present application further provides a communication device 600, which includes a processor 601, a memory 602, and a program or instruction stored in the memory 602 and executable on the processor 601. For example, when the communication device 600 is a terminal, when this program or instruction is executed by the processor 601, each process of the embodiment of the above channel state information CSI report mapping method can be realized, and the same technical effect can be achieved. When the communication device 600 is a network-side device, when this program or instruction is executed by the processor 601, each process of the embodiment of the above channel state information CSI report mapping method can be realized, and the same technical effect can be achieved. To avoid repetition of description, it will not be described further here.

[0185] An embodiment of the present application further provides a terminal, which includes a processor and a communication interface. The communication interface is used to feedback X CSI reports to a network-side device via a target channel according to a preset mapping rule. The embodiment of this terminal corresponds to the embodiment of the above terminal-side method, and each implementation process and implementation method of the embodiment of the above method can be applied to the embodiment of this terminal, and the same technical effect can be achieved. Specifically, FIG. 11 is a schematic diagram of the hardware structure of a terminal for realizing an embodiment of the present application.

[0186] This terminal 100 includes at least some of the components such as a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and a processor 110, but is not limited thereto.

[0187] As would be understood by those skilled in the art, the terminal 100 may further include a power source (e.g., an electric pool) for supplying power to each component. The power source may be logically connected to the processor 110 by a power management system, whereby functions such as charge and discharge management and power consumption management can be realized by the power management system. The terminal structure shown in FIG. 11 does not constitute a limitation on the terminal. The terminal may include more or fewer components than those shown, or a combination of some components, or a different arrangement of components, which will not be further described herein.

[0188] It should be understood that in the embodiments of the present application, the input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042. The graphics processing unit 1041 processes the image data of a still image or a video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts: a touch detection device and a touch controller. The other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, an operation lever, which will not be further described herein.

[0189] In the embodiments of the present application, after receiving the downlink data from the network-side device, the radio frequency unit 101 causes the processor 110 to process it, and also transmits the uplink data to the network-side device. Generally, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0190] Memory 109 may be used to store software programs or instructions and various data. Memory 109 may mainly include a program or instruction storage area and a data storage area. Here, the program or instruction storage area can store an operating system, application programs or instructions required for at least one function (for example, a voice playback function, an image playback function, etc.). Note that Memory 109 may include a high-speed random access memory and may also include a non-volatile memory. Here, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, it may be at least one magnetic disk memory device, a flash memory device, or other non-volatile solid-state memory devices.

[0191] Processor 110 may include one or more processing units. Optionally, Processor 110 may integrate an application processor and a modem processor. Here, the application processor mainly processes an operating system, a user interface, application programs or instructions, etc., and the modem processor mainly processes wireless communication, for example, a baseband processor. As can be understood, the above modem processor does not have to be integrated into Processor 110.

[0192] Here, the radio frequency unit 101 is used to feedback X CSI reports to the network - side device via the target channel according to a preset mapping rule. Here, at least one of information for indicating a beam reporting type and related information of the target beam is included in the CSI report. The target beam includes at least one of N pairs of first beams that can be simultaneously received by the terminal device and M second beams whose measurement values satisfy a predetermined condition. N is a positive integer greater than or equal to 1, and X and M are positive integers. The preset mapping rule is a mapping rule that matches the beam reporting type.

[0193] In the terminal according to the embodiment of the present application, this terminal performs UCI mapping on X CSI reports (including information for indicating a beam reporting type and / or related information of the target beam in the CSI report) according to a preset mapping rule that matches the beam reporting type via a target channel (for example, a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH)), and further feeds back to the network - side device. Thereby, the network - side device performs communication transmission with the terminal device according to the mapping result reported by the terminal device. In the above process, since the target beam includes N pairs of first beams (N is a positive integer greater than 1) that can be simultaneously received by the terminal device and / or M second beams (M is a positive integer) whose measurement values satisfy a predetermined condition, when the beam reporting type is group - based beam reporting, the method according to the embodiment of the present application enables the terminal device to report multiple pairs of beams simultaneously, not limited to reporting only one pair of beams.

[0194] Optionally, the beam reporting type includes any one of group-based beam reporting, non-group-based beam reporting, and group-based and non-group-based hybrid beam reporting, and the beam reporting type is configured by the network-side device for the terminal device or determined by the terminal device according to a preset rule of the network-side device.

[0195] Optionally, the related information of the target beam includes at least one of a target CSI measurement resource indication and a measurement value of the target CSI measurement resource, where the target CSI measurement resource indication is a CSI reference signal resource indication CRI or a system synchronization block resource indication SSBRI, and the measurement value of the target CSI measurement resource is a layer 1 measurement value.

[0196] Optionally, the values of M and N are configured by the network-side device via RRC signaling, or can be determined and changed by being configured via RRC signaling and selected via MAC-CE.

[0197] Optionally, when the beam reporting type is configured by the network-side device for the terminal device, the beam reporting type can be changed by the network-side device via MAC-CE.

[0198] Optionally, when the target CSI measurement resource indication is included in the target CSI report, the processor 110 is used to code the target CSI measurement resource indication in a preset coding scheme, where the target CSI measurement resource indication includes all target CSI measurement resource indications or some of the target CSI measurement resource indications, and the preset coding scheme includes at least one of coding according to the number of channel measurement resources CMR configured in the CSI measurement resource setting, coding according to the number of CMR configured in the CSI measurement resource set, coding according to the number of CMR configured in the CSI measurement resource subset in the CSI measurement resource set, and performing joint coding according to the CMR resource.

[0199] Optionally, when the beam reporting type is configured by the network-side device or determined by the terminal device according to a preset rule of the network-side device, specifically, when the beam reporting type is group-based beam reporting, the radio frequency unit 101 is used to select and report the related information of N pairs of first beams that can be simultaneously received by the terminal device. The target CSI measurement resource indication in each pair of first beam information corresponds to different CSI measurement resources. Specifically, the radio frequency unit 101 is further used to select and report the related information of M second beams whose measurement values meet a predetermined condition when the beam reporting type is non-group-based beam reporting. Specifically, the radio frequency unit 101 is further used to select and report the related information of Q pairs of first beams and the related information of W second beams when the beam reporting type includes group-based and non-group-based hybrid beam reporting. Here, Q is less than or equal to N, W is less than or equal to M, Q and W can be configured by the network-side device or set based on a preset rule, and Q and W are positive integers. Here, the CSI measurement resource includes any one of a CSI measurement resource setting, a CSI measurement resource set, and a CSI measurement resource subset.

[0200] Optionally, when the beam reporting type is determined by the terminal device according to a preset rule of the network-side device, the beam reporting type can be indicated in either of the following two ways: by indicating the beam reporting type by the target domain in the CSI report, or by indicating the beam reporting type based on the magnitude relationship between the measured value of the CSI measurement resource in the CSI report and the target measurement threshold. Here, the target measurement threshold is configured by the network-side device or preset by the network-side device and the terminal device.

[0201] Optionally, when the beam reporting type is configured by the network-side device for the terminal device or determined by the terminal device according to a preset rule of the network-side device, if the beam reporting type is the group-based beam reporting, the preset mapping rule includes any one of a first rule and a second rule. Here, the first rule arranges the first CSI measurement resource indication first, and then arranges the CSI measurement resource indications of other beams in order according to the form of beam pairs. The first CSI measurement resource indication corresponds to the measurement resource indication of the beam with the largest layer 1 measurement value among the N pairs of first beams. Here, the second rule includes, when the first rule is satisfied, mapping the layer 1 measurement value corresponding to the first CSI measurement resource indication, and mapping the layer 1 measurement values of other beams according to the difference value from the layer 1 measurement value corresponding to the first CSI measurement resource indication.

[0202] Optionally, when the beam reporting type is the hybrid beam reporting of group-based and non-group-based, the preset mapping rule includes any one of a third rule and a fourth rule. Here, the third rule arranges the second CSI measurement resource indication first, and determines the arrangement order of the N pairs of first beams and the M second beams based on the beam reporting type of the beam corresponding to the second CSI measurement resource indication. The second CSI measurement resource indication corresponds to the CSI measurement resource indication of the beam with a layer 1 measurement value satisfying a predetermined condition among the N pairs of first beams and the M second beams. The fourth rule includes, when the third rule is satisfied, mapping the layer 1 measurement value corresponding to the second CSI measurement resource indication, and mapping the layer 1 measurement values of other beams according to the difference value from the layer 1 measurement value corresponding to the second CSI measurement resource indication.

[0203] Optionally, the processor 110 is further used to add a first indication domain before an indication domain corresponding to a third CSI measurement resource indication, or the processor 110 is further used to extend a second indication domain corresponding to the third CSI measurement resource indication, where the first indication domain and the second indication domain are used to indicate a beam reporting type, and where the third CSI measurement resource indication is any one of the second CSI measurement resource indication and all CSI measurement resource indications in the N pairs of first beams and the M second beams.

[0204] Optionally, when the beam reporting type is determined by the terminal device according to a preset rule of the network-side device and the beam reporting type is group-based beam reporting, the preset mapping rule arranges the first CSI measurement resource indication corresponding to the beam with the largest layer 1 measurement value among the N pairs of first beams first, and then arranges the CSI measurement resource indications of the first other beams in order according to the beam pair format, where the first other beam pairs include beam pairs other than the beam pair including the beam with the largest layer 1 measurement value, and where the first beam pair generated by the first other beam pair satisfies a first relationship, and the first relationship is a certain magnitude relationship between the layer 1 measurement values within each beam pair of the first beam pair.

[0205] Optionally, when the beam reporting type is determined by the terminal device according to a preset rule of the network-side device and the beam reporting type is the non-group-based beam reporting, the preset mapping rule arranges the second CSI measurement resource indication corresponding to the beam with the largest layer 1 measurement value among the M second beams first, and then arranges the CSI measurement resource indications of the other second beams in order. The other second beams are the beams other than the beam with the largest layer 1 measurement value among the M second beams. The method further includes generating second beam pairs by pairing the second beams two by two. Here, the second beam pairs satisfy a second condition, and the second condition is that there is at least one pair of CSI measurement resource indications in the second beam pairs in which there is a certain magnitude relationship between the corresponding layer 1 measurement values.

[0206] Optionally, when the beam reporting type is determined by the terminal device according to a preset rule of the network-side device and the beam reporting type is a hybrid beam reporting of group-based and non-group-based, the preset mapping rule includes pairing the M second beams two by two to generate T pairs of second beams, where the N pairs of first beams and the T pairs of second beams satisfy a third relationship, and the third relationship includes that the N pairs of first beams are arranged in front of the T pairs of second beams, and the CSI measurement resource indicators corresponding to the first CSI measurement resource indicators arranged first in each pair of the N pairs of first beams are rearranged in descending order of layer 1 measurement values, and the CSI measurement resource indicators corresponding to each pair of first beams are rearranged in descending order of layer 1 measurement values, and the layer 1 measurement values corresponding to the first CSI measurement resource indicators arranged first in each pair of the N pairs of first beams are non-differentially mapped, and the CSI measurement resource indicators corresponding to the first CSI measurement resource indicators arranged first in each pair of the T pairs of second beams are rearranged in descending order of layer 1 measurement values, and the CSI measurement resource indicators corresponding to each pair of second beams are rearranged in descending order of layer 1 measurement values, and the layer 1 measurement values corresponding to the first CSI measurement resource indicators arranged first in each pair of the T pairs of second beams are non-differentially mapped.

[0207] Embodiments of the present application further provide a network-side device, which includes a processor and a communication interface. The communication interface is used to receive a CSI report reported by a terminal device, and the processor is used to analyze the CSI report based on a beam reporting type. Here, the CSI report includes at least one of information for indicating a beam reporting type and related information of a target beam. The target beam includes at least one of N pairs of first beams that can be simultaneously received by the terminal device and M second beams whose measurement values satisfy a predetermined condition. N is a positive integer greater than 1, and M is a positive integer. The beam reporting type is configured for the terminal device by the network-side device or determined by the terminal device according to a preset rule of the network-side device. The beam reporting type includes at least one of group-based beam reporting, non-group-based beam reporting, and group-based and non-group-based hybrid beam reporting. Embodiments of this network-side device correspond to embodiments of the network-side device method, and each implementation process and realization method of the embodiments of the method can be applied to embodiments of this network-side device and can achieve the same technical effect.

[0208] Specifically, embodiments of the present application further provide a network-side device. As shown in FIG. 12, this network-side device 800 includes an antenna 81, a radio frequency device 82, and a baseband device 83. The antenna 81 and the radio frequency device 82 are connected. In the uplink direction, the radio frequency device 82 receives information via the antenna 81 and transmits the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be transmitted, transmits it to the radio frequency device 82, and the radio frequency device 82 processes the received information and then sends it out via the antenna 81.

[0209] The above frequency band processing device may be located in the baseband device 83. In the above embodiments, the method executed by the network-side device may be implemented in the baseband device 83, and this baseband device 83 includes a processor 84 and a memory 85.

[0210] The baseband device 83 may include, for example, at least one baseband board. A plurality of chips are installed on this baseband board. As shown in FIG. 8, one of the chips is, for example, the processor 84, which is connected to the memory 85, calls a program in the memory 85, and executes the network device operations shown in the above method embodiments.

[0211] This baseband device 83 may further include a network interface 86, which is used for information exchange with the radio frequency device 82. This interface is, for example, a common public radio interface (abbreviated as CPRI).

[0212] Specifically, the network-side device in the embodiments of the present invention further includes instructions or programs stored in the memory 85 and executable on the processor 84. The processor 84 calls the instructions or programs in the memory 85, executes the method executed by each module shown in FIG. 12, and can achieve the same technical effects. To avoid repetition of the description, it will not be further described here.

[0213] Here, in the network-side device, the antenna 81 is used to receive the CSI report reported by the terminal device, and the processor 84 is used to analyze the CSI report based on the beam reporting type. Here, the CSI report includes at least one of information for indicating the beam reporting type and related information of the target beam. The target beam includes at least one of N pairs of first beams that can be simultaneously received by the terminal device and M second beams whose measurement values satisfy a predetermined condition. N is a positive integer greater than 1, and M is a positive integer. The beam reporting type is configured for the terminal device by the network-side device or determined according to a preset rule of the network-side device by the terminal device. The beam reporting type includes at least one of group-based beam reporting, non-group-based beam reporting, and group-based and non-group-based hybrid beam reporting.

[0214] In the network-side device according to the embodiment of the present application, after receiving the CSI report reported by the terminal device, the network-side device can analyze the CSI report based on the beam reporting type. In the above process, the network-side device can receive CSI reports in various beam reporting methods provided by the terminal device and flexibly analyze them according to the analysis method corresponding to the corresponding preset mapping method.

[0215] Optionally, the processor 84 is used to configure the beam reporting type in the CSI report configuration or configure the beam reporting type by presetting a preset rule corresponding to the beam reporting type for the terminal device.

[0216] Optionally, when the network-side device does not configure the beam reporting type in the CSI report configuration, the processor 84 further uses a preset method to determine the beam reporting type of the CSI report. The preset method includes querying the beam reporting type indicated by the target domain, querying the magnitude relationship between the measurement value of the CSI measurement resource in the CSI report for indicating the beam reporting type and the target measurement threshold, and querying whether any one of the N pairs of first beams and / or the M second beams satisfies the first condition, the second condition, or the third condition.

[0217] Optionally, the first condition is that there is a certain magnitude relationship between the layer 1 measurement values within each beam pair of the first beam pairs generated by the first other beam pairs. The first other beam pairs include other beam pairs other than the beam pair including the beam with the largest layer 1 measurement value among the N pairs of first beams. The second condition is that there is at least one pair of CSI measurement resource indications with a certain magnitude relationship between the corresponding layer 1 measurement values in the second beam pair. The second beam pair is the beam pair generated by the terminal device pairing the second beams two by two. The third condition includes that the CSI measurement resource indications corresponding to the first CSI measurement resource indications arranged first in each pair of the N pairs of first beams are sorted in descending order of the corresponding layer 1 measurement values, and the CSI measurement resource indications corresponding to each pair of the first beams are sorted in descending order of the corresponding layer 1 measurement values, and the CSI measurement resource indications corresponding to the first CSI measurement resource indications arranged first in each pair of the T pairs of second beams are sorted in descending order of the corresponding layer 1 measurement values, and the CSI measurement resource indications corresponding to each pair of the second beams are sorted in descending order of the corresponding layer 1 measurement values.

[0218] Optionally, when the preset method is to query whether the N pairs of first beams and / or the M second beams satisfy a first condition, or a second condition, or a third condition, the processor 84 is specifically further configured to, when it is determined that the measurement value corresponding to the target CSI measurement resource indication in the related information of the target beam satisfies the first condition, be used to determine that the beam reporting type is group-based beam reporting, and the processor 84 is specifically further configured to, when it is determined that the measurement value corresponding to the target CSI measurement resource indication in the related information of the target beam satisfies the second condition, be used to determine that the beam reporting type is non-group-based beam reporting, and the processor 84 is specifically further configured to, when it is determined that the measurement value corresponding to the target CSI measurement resource indication in the related information of the target beam satisfies the third condition by the network-side device, be used to determine that the beam reporting type includes the group-based beam reporting and the non-group-based beam reporting.

[0219] Embodiments of the present application further provide a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the embodiment of the mapping method of the channel state information CSI report is realized, and the same technical effect can be achieved. To avoid repetition of description, it will not be described further here.

[0220] Here, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0221] Embodiments of the present application further provide a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor runs a program or instruction, and is used to implement each process of the embodiment of the mapping method of the above channel state information CSI report, and the same technical effect can be achieved. To avoid repetition of the description, it will not be described further here.

[0222] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-level chip, a system chip, a chip system, or a system-on-chip, etc.

[0223] It should be noted that in this specification, the term "including", "comprising" or any other variation thereof is intended to cover non-exclusive "including", so that a process, method, article or device including a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such a process, method, article or device. Without further limitation, for an element limited by the phrase "including one...", it is not excluded that there are other same elements in the process, method, article or device including this element. It should be pointed out that the scope of the method and device in the embodiments of the present application is not limited to executing functions in the order illustrated or discussed, and may include executing functions in a basically simultaneous manner or in a reverse order based on the related functions. For example, a method described in a procedure different from the described one can be executed, and various steps can be added, omitted or combined. Also, features described with reference to some examples can be combined in other examples.

[0224] As can be clearly understood by those skilled in the art from the description of the above embodiments, the method of the above embodiments can be realized in the form of software and the necessary general-purpose hardware platform. Of course, it may also be realized by hardware, but in many cases, the former is a more preferred embodiment. Based on such an understanding, the technical solution of this application or the part that contributes to the prior art may be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and contains some instructions for causing a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of this application.

[0225] The above has described the embodiments of this application in conjunction with the drawings, but this application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Those skilled in the art can make many forms without departing from the spirit of this application and the scope of the claims, and all belong to the protection scope of this application.

Claims

1. A method for mapping channel state information CSI reports, comprising: a terminal device feeding back X CSI reports to a network-side device according to a preset mapping rule, wherein, among the X CSI reports, each CSI report includes related information of a target beam, the target beam includes N pairs of first beams that can be simultaneously received by the terminal device, and N is a positive integer greater than or equal to 1, the preset mapping rule is a mapping rule that matches a beam reporting type, the beam reporting type includes group-based beam reporting, and the preset mapping rule includes a first rule, where the first rule arranges the first CSI measurement resource indication first, and then arranges the CSI measurement resource indications of other beams in order according to the form of beam pairs, and the first CSI measurement resource indication corresponds to the CSI measurement resource indication of the beam with the largest layer 1 measurement value among the N pairs of first beams. A method for mapping channel state information CSI reports.

2. The method according to claim 1, wherein the beam reporting type is configured by the network-side device for the terminal device.

3. The related information of the target beam includes at least one of a target CSI measurement resource indication and a measurement value of the target CSI measurement resource, where the target CSI measurement resource indication is a CSI reference signal resource indication CRI or a system synchronization block resource indication SSBR, and the measurement value of the target CSI measurement resource is a layer 1 measurement value. The method according to claim 1.

4. When the target CSI measurement resource indication is included in the target CSI report among the X CSI reports, the method further includes: the terminal device coding the target CSI measurement resource indication according to a preset coding method, where the target CSI measurement resource indication includes all target CSI measurement resource indications, the preset coding method includes: the terminal device coding according to the number of CMRs configured in the CSI measurement resource set. The method according to claim 3. **Claim 5**: The terminal device selects and reports the related information of N pairs of first beams that can be simultaneously received by the terminal device, and the target CSI measurement resource instructions in the first beam information of each pair correspond to different CSI measurement resources. Here, the CSI measurement resource includes any one of a CSI measurement resource configuration, a CSI measurement resource set, and a CSI measurement resource subset. The method according to claim 2. **Claim 6**: The preset mapping rule further includes a second rule Here, the second rule includes mapping the layer 1 measurement value corresponding to the first CSI measurement resource instruction and mapping the layer 1 measurement values of other beams according to the difference value from the layer 1 measurement value corresponding to the first CSI measurement resource instruction. The method according to claim 2. **Claim 7** The CSI report further includes a domain for indicating the CSI measurement resource set corresponding to the first CSI measurement resource instruction. Map and arrange other CSI measurement resource instructions according to the preset mapping rule, and determine the correspondence relationship between them and the CSI measurement resource set. The method according to claim 6. **Claim 8** A method for mapping a channel state information CSI report, comprising: a network-side device receiving the CSI report reported by a terminal device; the network-side device analyzing the CSI report based on a beam report type. Here, the CSI report includes related information of a target beam, the target beam includes N pairs of first beams that can be simultaneously received by the terminal device, N is a positive integer greater than 1, and the beam report type is configured by the network-side device for the terminal device. The beam report type includes group-based beam reporting. The CSI report reported by the terminal device is obtained according to a preset mapping rule, and the preset mapping rule includes a first rule. Here, the first rule arranges the first CSI measurement resource indication first, and then arranges the CSI measurement resource indications of other beams in order according to the form of beam pairs. The first CSI measurement resource indication corresponds to the beam with the largest layer 1 measurement value among the N pairs of first beams. A mapping method for channel state information CSI report.

9. Before the network-side device receives the CSI report reported by the terminal device, the method further includes: The method according to claim 8, further including the network-side device configuring a beam reporting type in the CSI report configuration.

10. The preset mapping rule further includes a second rule. Here, the second rule includes mapping the layer 1 measurement value corresponding to the first CSI measurement resource indication, and mapping the layer 1 measurement values of other beams according to the difference value from the layer 1 measurement value corresponding to the first CSI measurement resource indication. The method according to claim 8.

11. The CSI report further includes a domain for indicating a CSI measurement resource set corresponding to the first CSI measurement resource indication. The method according to claim 10, mapping and arranging other CSI measurement resource indications according to a preset mapping rule, and determining the correspondence with the CSI measurement resource set.

12. A terminal, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, it realizes the steps of the mapping method for channel state information CSI report according to any one of claims 1 to 7.

13. A network-side device, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, it realizes the steps of the mapping method for channel state information CSI report according to any one of claims 8 to 11.

14. Computer software, wherein the computer software is executed by at least one processor to implement the method for mapping channel state information CSI reports according to any one of claims 1 to 7, or to implement the method for mapping channel state information CSI reports according to any one of claims 8 to 11.

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