Feedback Method for Channel State Information (CSI) Reporting, Terminal Equipment and Network Equipment

Abstract

The present invention discloses a feedback method for channel state information (CSI) reporting, terminal equipment, and network equipment. The method comprises the steps of: obtaining a CSI reporting configuration and one or more CSI measurement resource groups corresponding to the CSI reporting configuration—each CSI measurement resource group includes one or more CSI measurement resources, each CSI measurement resource group includes a channel measurement resource group and / or an interference measurement resource group, and each CSI resource includes a channel measurement resource and / or an interference measurement resource—; generating a CSI report according to the CSI reporting configuration and the one or more CSI measurement resource groups; and reporting the CSI report.

Description

Technology Field

[0001] The present invention relates to the field of communications, and in particular to a feedback method for Channel State Information (CSI) reporting, terminal equipment, and network equipment. Background Technology

[0002] When network equipment communicates with terminal equipment, multi-TRP (Transmission Reception Point) / multi-panel technology can be used to increase transmission reliability and throughput. For example, to increase transmission reliability, the terminal equipment can receive the same data from multiple TRPs, and to increase transmission throughput, the terminal equipment can receive different data from multiple TRPs.

[0003] Generally, in a multi-TRP / multi-panel scenario, the terminal equipment must measure the CSI of multiple TRPs / multiple panels and report the CSI to the network equipment. Specifically, the network equipment can configure the CSI reporting configuration and CSI resource configuration for the terminal equipment, and the terminal equipment can measure the CSI of multiple TRPs / multiple panels and report the CSI based on this CSI reporting configuration and CSI resource configuration.

[0004] However, when network equipment schedules Physical Downlink Shared Channels (PDSCH) via Downlink Control Information (DCI), considering ideal and non-ideal backhauls between multiple TRPs / multi-panels, network equipment can schedule multiple PDSCHs via multiple DCIs or schedule a single PDSCH via a single DCI; yet, when terminal equipment reports CSI in these different situations, there is still a lack of effective implementation methods. The problem to be solved

[0005] Embodiments of the present invention aim to solve the problem of a method for effectively providing feedback of a CSI report by a terminal device in a multi-TRP / multi-panel scenario, by providing a feedback method for a CSI report, a terminal device, and a network device. means of solving the problem

[0006] To solve the aforementioned technical problem, the present invention is implemented as follows.

[0007] In a first aspect, a method for providing feedback of a channel state information (CSI) report applied to a terminal device comprises: a step of obtaining a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration—each CSI measurement resource group includes one or more CSI measurement resources, each CSI measurement resource group includes a channel measurement resource group and / or an interference measurement resource group, and each CSI resource includes a channel measurement resource and / or an interference measurement resource—; a step of generating a CSI report according to the CSI report configuration and the one or more CSI measurement resource groups; and a step of reporting the CSI report.

[0008] In a second aspect, a method for providing feedback of a CSI report applied to network equipment comprises the steps of: transmitting a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration to a terminal equipment—each CSI measurement resource group includes one or more CSI measurement resources, each CSI measurement resource group includes a channel measurement resource group and / or an interference measurement resource group, and each CSI measurement resource includes a channel measurement resource and / or an interference measurement resource—; and receiving a CSI report from the terminal equipment; wherein the CSI report is determined by the terminal equipment according to the CSI report configuration and the one or more CSI measurement resource groups.

[0009] In a third aspect, in providing terminal equipment, the terminal equipment comprises: an acquisition module configured to acquire a CSI reporting configuration and one or more CSI measurement resource groups corresponding to the CSI reporting configuration—each CSI resource group includes one or more CSI measurement resources, each CSI measurement resource group includes a channel measurement resource group and / or an interference measurement resource group, and each CSI resource includes a channel measurement resource and / or an interference measurement resource—; a generation module configured to generate a CSI report according to the CSI reporting configuration and the one or more CSI measurement resource groups; and a reporting module configured to report the CSI report.

[0010] In a fourth aspect, in providing network equipment, the network equipment comprises: a transmitting module configured to transmit a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration to a terminal equipment, wherein each CSI measurement resource group includes one or more CSI measurement resources, each CSI measurement resource group includes a channel measurement resource group and / or an interference measurement resource group, and each CSI measurement resource includes a channel measurement resource and / or an interference measurement resource; and a receiving module configured to receive a CSI report from the terminal equipment; wherein the CSI report is determined by the terminal equipment according to the CSI report configuration and the one or more CSI measurement resource groups.

[0011] In a fifth aspect, in providing terminal equipment, the terminal equipment comprises a processor, a memory, and a computer program stored in said memory and executable on said processor, and when said computer program is executed by said processor, the steps of the method described in the first aspect are implemented.

[0012] In a sixth aspect, in providing network equipment, the network equipment comprises a processor, a memory, and a computer program that is stored in the memory and can be executed on the processor, and when the computer program is executed by the processor, the steps of the method described in the second aspect are implemented.

[0013] In the seventh aspect, in providing a computer-readable storage medium, a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method described in the first aspect are implemented.

[0014] In the eighth aspect, in providing a computer-readable storage medium, a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method described in the second aspect are implemented. Effects of the invention

[0015] In an embodiment of the present invention, network equipment can be implemented such that different TRPs correspond to different CSI measurement resource groups by configuring CSI measurement resources corresponding to CSI reporting configurations into one or more CSI measurement resource groups. Accordingly, when reporting a CSI report, terminal equipment can effectively select one or more TRPs based on one or more CSI measurement resource groups corresponding to the CSI reporting configurations to perform CSI measurement and report a CSI report. In the case of network equipment, network equipment can effectively determine one or more TRPs based on the CSI report to perform resource scheduling. Brief explanation of the drawing

[0016] FIG. 1 is a flowchart of a feedback method for channel state information (CSI) reporting according to one embodiment of the present invention. FIG. 2 is a flowchart of a feedback method for CSI reporting according to one embodiment of the present invention. FIG. 3 is a schematic diagram of the structure of a terminal device according to one embodiment of the present invention. FIG. 4 is a schematic diagram of the structure of a network equipment according to one embodiment of the present invention. FIG. 5 is a schematic diagram of the structure of a terminal device according to one embodiment of the present invention. FIG. 6 is a schematic diagram of the structure of a network equipment according to one embodiment of the present invention. Specific details for implementing the invention

[0017] [Cross-reference to related applications]

[0018] The present invention claims priority to a Chinese patent application filed with the Chinese Intellectual Property Office on February 12, 2020, with patent number 202010089624.0 and title of the invention, “Feedback method for Channel State Information (CSI) reporting, terminal equipment and network equipment,” the entire contents of said application are incorporated herein by reference.

[0019] Hereinafter, the technical solutions of the embodiments of the present invention will be described clearly and completely in conjunction with the drawings attached to the embodiments of the present invention. It is evident that the embodiments described herein are merely some embodiments, not all embodiments of the present invention. Any other embodiments obtained by a person skilled in the art without creative labor based on the embodiments of the present invention fall within the scope of protection of the present invention.

[0020] The technical solution of the present invention can be applied to various communication systems such as Long Term Evolution (LTE) / Long Term Evolution Advanced (LTE-A) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Universal Mobile Telecommunications System (UMTS) systems or Worldwide Interoperability for Microwave Access (WiMAX) communication systems, 5G systems or New Radio (NR) systems.

[0021] Terminal equipment can be understood as User Equipment (UE), Mobile Terminal, mobile user equipment, etc., and can communicate with one or more core networks via a Radio Access Network (e.g., Radio Access Network, RAN). Terminal equipment may be a mobile terminal such as a mobile phone (or 'cellular' phone), a computer equipped with mobile terminal equipment such as a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device, or flying equipment such as drones and aircraft, and they exchange language and / or data with the Radio Access Network.

[0022] Network equipment can be understood as a core network, a base station, or a TRP. Among these, the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, a base station (NodeB) in WCDMA, an evolved base station (eNB or e-NodeB) in LTE, a 5G base station (gNB) or TRP, and network equipment in subsequent evolutionary communication systems. The embodiments of the present invention are not limited thereto, but for convenience of explanation, the following embodiments will be described using a gNB as an example.

[0023] The application scenario of the embodiment of the present invention may be a scenario in which network equipment communicates with terminal equipment based on multi-TRP (Transmission Reception Point) / multi-panel technology, and the following will be explained using multi-TRP as an example.

[0024] Next, technical solutions according to each embodiment of the present invention will be described in detail with reference to the attached drawings.

[0025] FIG. 1 is a flowchart of a feedback method for a CSI report according to an embodiment of the present invention, which can be performed by electronic equipment such as terminal equipment. In other words, the method can be performed by software or hardware installed on terminal equipment. As illustrated in FIG. 1, the method may include the following steps.

[0026] S102: Acquire a CSI reporting configuration and one or more CSI measurement resource groups corresponding to the said CSI reporting configuration, wherein each CSI measurement resource group includes one or more CSI measurement resources, each CSI measurement resource group includes a channel measurement resource group and / or an interference measurement resource group, and each CSI measurement resource includes a channel measurement resource and / or an interference measurement resource.

[0027] In S102, before the network equipment performs resource scheduling for the terminal equipment based on multi-TRP technology, it configures a CSI reporting configuration of multiple TRPs for the terminal equipment and one or more CSI measurement resource groups corresponding to this CSI reporting configuration (CSI report setting / CSI-ReportConfig), thereby enabling the terminal equipment to measure the CSI of multiple TRPs based on the CSI reporting configuration and one or more CSI measurement resource groups and report the CSI report to the network equipment.

[0028] Network equipment may obtain one or more CSI measurement resource groups corresponding to a CSI report configuration through configuration, and then transmit them to terminal equipment through upper layer signaling or physical layer signaling, wherein terminal equipment may obtain one or more CSI measurement resource groups and a CSI report configuration from network equipment. Among these, the upper layer signaling may be Radio Resource Control (RRC) signaling or Medium Access Control-Control Element (MAC-CE) signaling, and the physical layer signaling may be DCI, etc.

[0029] In an embodiment of the present invention, the one or more CSI measurement resource groups may be used by a terminal device to measure CSI, and each CSI measurement resource group may include at least one of a channel measurement resource group and an interference measurement resource group. Among these, one CSI measurement resource group may include one or more CSI measurement resources, and one CSI measurement resource may specifically include at least one of a channel measurement resource (e.g., a Channel State Information-Reference Signal (CSI-RS) resource) and an interference measurement resource (e.g., a Channel State Information-Interference Measurement (CSI-IM) resource).

[0030] Optionally, for the plurality of CSI measurement resource groups, different CSI measurement resource groups may have different Quasi-Colocations (QCLs), and different CSI measurement resource groups may correspond to different TRPs. In an embodiment of the present invention, the correspondence relationship between the plurality of CSI measurement resource groups and the plurality of TRPs (i.e., the membership relationship between the CSI measurement resource groups and the TRPs) is determined by network equipment, and the network equipment may notify the terminal equipment through upper-layer signaling configuration (e.g., RRC signaling, DCI, etc.), or a default method, or be transparent to the terminal equipment without the need to notify the terminal equipment. For example, there are M (where M is an integer greater than 1) CSI measurement resource groups corresponding to M TRPs, and the network equipment may configure the number of CSI measurement resources within each CSI measurement resource group or configure CSI resource IDs within each CSI measurement resource group through upper-layer signaling.

[0031] In an embodiment of the present invention, the one CSI measurement resource can be divided into at least the following three cases.

[0032] First case: A single CSI measurement resource may specifically be a single channel measurement resource, and this channel measurement resource may specifically be a CSI-RS resource or a Synchronization Signal Block (SSB) resource.

[0033] That is, the above one or more CSI measurement resource groups may specifically be one or more channel measurement resource groups, and the one or more channel measurement resource groups may specifically be one or more CSI-RS resource groups or SSB resource groups, each CSI-RS resource group may include one or more CSI-RS resources, and the SSB resource group may include one or more SSB resources, and different CSI-RS resource groups and different SSB resource groups have different QCLs and correspond to different TRPs. Each CSI-RS resource or SSB resource of each CSI-RS resource group or SSB resource group may have the same or different QCLs.

[0034] Second case: A single CSI measurement resource can specifically be a single interference measurement resource, and this interference measurement resource can specifically be a CSI-IM resource.

[0035] That is, the above one or more CSI measurement resource groups may specifically be one or more interference measurement resource groups, and the one or more interference measurement resource groups may specifically be one or more CSI-IM resource groups, each CSI-IM resource group includes one or more CSI-IM resources, and different CSI-IM resource groups have different QCLs and correspond to different TRPs.

[0036] Third case: The above-mentioned single CSI measurement resource may be a single channel measurement resource or a single interference measurement resource; if the single CSI measurement resource is a single channel measurement resource, this single channel measurement resource may specifically be some or all of the CSI-RS ports of a single CSI-RS resource; and if the single CSI measurement resource is a single interference measurement resource, this single interference measurement resource may specifically be some or all of the CSI-RS ports of a single CSI-RS resource.

[0037] That is, the above one or more CSI measurement resource groups may be one or more channel measurement resource groups or one or more interference measurement resource groups, and the one or more channel measurement resource groups / interference measurement resource groups may specifically be one or more CSI-RS port groups, each CSI-RS port group includes one or more CSI-RS ports in one CSI-RS resource, and different CSI-RS port groups have different QCLs and correspond to different TRPs.

[0038] In an embodiment of the present invention, when the number of CSI measurement resource groups is multiple, the multiple CSI measurement resource groups may be configured according to one or more CSI resource configurations (CSI resource setting / CSI-ResourceConfig), and specifically, can be divided into the following two methods.

[0039] First method: A plurality of CSI measurement resource groups are configured by a CSI resource configuration associated with the above CSI reporting configuration. That is, when network equipment configures a CSI resource configuration for terminal equipment, this CSI resource configuration may include the plurality of CSI measurement resource groups.

[0040] Second method: Multiple CSI measurement resource groups are each composed of a CSI resource configuration associated with a CSI reporting configuration and a CSI resource configuration associated with another CSI reporting configuration.

[0041] Among them, there is a correlation between the above CSI reporting configuration and other CSI reporting configurations, and this correlation can be configured or directed by network equipment. For example, network equipment can configure or direct this through RRC signaling, MAC CE signaling, or DCI, etc.

[0042] In the second method, network equipment can configure one CSI reporting configuration for each TRP, and each CSI reporting configuration is associated with one CSI resource configuration, and at the same time, an association between at least two CSI reporting configurations can be configured or directed. That is, one CSI report is associated with one or more other CSI reporting configurations. Thus, through the association between at least two CSI reporting configurations, at least two CSI resource configurations can be associated, so multiple CSI measurement resource groups corresponding to a CSI reporting configuration can be configured by a CSI resource configuration associated with a CSI reporting configuration and a CSI resource configuration associated with another CSI reporting configuration.

[0043] It should be noted that in the first method above, one CSI report configuration may consist of multiple TRP CSI reports, and in the second method above, one CSI report configuration may consist of one TRP CSI report.

[0044] S104: Generate a CSI report based on the above CSI report configuration and the above one or more CSI measurement resource groups.

[0045] In S104, when the terminal equipment generates a CSI report, it may select N CSI measurement resources from one or more CSI measurement resource groups and generate a CSI report based on the selected N CSI measurement resources. Among these, N is an integer greater than 0 and less than or equal to M, and M is the number of groups of the one or more CSI measurement resource groups.

[0046] In an embodiment of the present invention, a CSI report generated by a terminal device may include at least one of a first CSI and a second CSI, wherein the first CSI can be understood as a CSI obtained by a single CSI measurement resource, and this single CSI measurement resource belongs to one of the groups of CSI measurement resources among the one or more CSI measurement resource groups. That is, the terminal device selects one CSI measurement resource group from the one or more groups of CSI measurement resources, selects one CSI measurement resource (i.e., N=1) from this single CSI resource group, and calculates the first CSI based on this single CSI measurement resource.

[0047] When a terminal device selects a CSI measurement resource from a group of CSI measurement resources, if the group of CSI measurement resources includes a single CSI measurement resource, this single CSI measurement resource can be considered as the selected CSI measurement resource; and if the group of CSI measurement resources includes multiple CSI measurement resources, the terminal device can select a single CSI measurement resource with optimal signal quality from the multiple CSI measurement resources. The first CSI corresponds to a CSI corresponding to a data transmission method transmitted to the terminal device by only one TRP, and may be, for example, a single TRP transmission or a Dynamic Point Selection (DPS).

[0048] The second CSI can be understood as the CSI obtained by the N CSI measurement resources when N is greater than 1. Optionally, these N CSI measurement resources may belong to the group of multiple CSI measurement resources. That is, when the terminal equipment selects N CSI measurement resources, for each CSI measurement resource group, one or more CSI measurement resources may be selected from each CSI measurement resource group so that the final N CSI measurement resources are selected, or these N CSI measurement resource groups may each belong to the group of N CSI measurement resources among the group of multiple CSI measurement resources, and when the terminal equipment selects N CSI measurement resources, one CSI measurement resource is selected from each of the N CSI measurement resource groups among the group of multiple CSI measurement resources.

[0049] The second CSI corresponds to a CSI in which data is transmitted to terminal equipment by multiple TRPs, and the corresponding transmission method may be any one of Non-Coherent Joint Transmission (NCJT), Single Frequency Network (SFN), Space Division Multiplexing (SDM), Frequency Division Multiplexing (FDM), and Time Division Multiplexing (TDM).

[0050] Among these, the transmission method of the second CSI may be instructed by the network equipment or agreed upon in advance by the network equipment and the terminal equipment. For example, the network equipment may instruct the terminal equipment (which may be configured via upper-layer signaling, for example, and included in the CSI report configuration) on the transmission method currently in use, or the network equipment may agree on the transmission method with the terminal equipment in the form of a protocol before the terminal equipment reports the CSI report.

[0051] In an embodiment of the present invention, the first CSI may be a broadband CSI or a subband CSI, the subband CSI may include K subband CSIs, the K subband CSIs may include a portion of the broadband CSI and a portion of the K subband CSIs, and K is an integer greater than or equal to 1. Similarly, the second CSI may be a broadband CSI or a subband CSI, the subband CSI may include K subband CSIs, the K subband CSIs may include a portion of the broadband CSI and a portion of the K subband CSIs, and K is an integer greater than or equal to 1.

[0052] It should be noted that network equipment may instruct terminal equipment to easily determine whether to report a first CSI or a second CSI. Specifically, terminal equipment may receive instruction information from network equipment before transmitting a CSI report to network equipment (or when network equipment transmits a CSI report configuration and one or more CSI measurement resource groups corresponding thereto to terminal equipment), and this instruction information may be used to instruct terminal equipment to choose whether to report a first CSI or a second CSI, that is, whether to report a first CSI or a second CSI may be chosen by terminal equipment itself, or, this instruction information may be used to instruct the type of CSI included in the CSI report, the type of CSI may include any one of the three types: a first CSI, a second CSI, and a first CSI and a second CSI. That is, the network equipment may instruct the terminal equipment to report the first CSI, the second CSI, or both the first CSI and the second CSI, or may instruct the terminal equipment to select the type of CSI to report on its own.

[0053] Optionally, the above instruction information may be carried in RRC signaling (carried in CSI reporting configuration), upper-layer signaling of network equipment such as MAC CE or DCI, or physical layer signaling.

[0054] The following provides a detailed explanation of the contents within the CSI report generated by the terminal equipment when the instruction information indicates different content.

[0055] In the first implementation method, when the instruction information instructs the terminal equipment to select a first CSI or a second CSI for reporting, the CSI report may include CSI measurement resource information and CSI measurement resource instruction information.

[0056] CSI measurement resource information is used to indicate N selected CSI measurement resources when the terminal equipment calculates the CSI, wherein N is an integer greater than or equal to 2. In an embodiment of the present invention, the CSI measurement resource information may include CSI measurement resource group number information and / or CSI measurement resource number information within the CSI measurement resource group, or the CSI measurement resource information may include a CSI measurement resource or a CSI measurement resource number, and the CSI measurement resource or CSI measurement resource number is used to determine the CSI measurement resource group number information and / or the CSI measurement resource number information within the CSI measurement resource group.

[0057] CSI measurement resource group number information can be used to determine the group number of a CSI measurement resource group, and CSI measurement resource number information within a CSI measurement resource group can be used to determine a specific CSI measurement resource within a single CSI measurement resource group (prerequisite is that the CSI measurement resource group includes multiple CSI measurement resources).

[0058] Optionally, when one CSI measurement resource is one CSI-RS resource or one CSI-IM resource, the N CSI measurement resource information may be determined according to the CSI-RS resource group to which the CSI-RS Resource Indicator (CRI) in the CSI report belongs. Among these, the CSI-RS resource group / CSI-IM resource group may be determined according to the CSI-RS resource group / CSI-IM resource group to which the CRI is located.

[0059] The above CSI measurement resource group instruction information may be used to indicate P CSI measurement resources corresponding to a first CSI or a second CSI. Among these, P is an integer greater than or equal to 1 and less than or equal to N, and the P CSI measurement resources belong to the N CSI measurement resources. Optionally, when N=2, the CSI measurement resource instruction information may be a bitmap.

[0060] If the above P is equal to 1, the CSI included in the CSI report is the first CSI, and if the above P is greater than 1, the CSI included in the CSI report is the second CSI.

[0061] For example, if the CSI measurement resource information is CRI and the CSI measurement resource instruction information is bitmap, and N=2, the terminal equipment may report two CRIs and bitmaps, the two CRIs are used to indicate two CSI measurement resources, and the bitmap may be used to indicate one or two CRIs corresponding to the first CSI (broadband (1 bit) or subband (K bits)) or the second CSI (broadband (1 bit) or subband (K bits)). If there are K subbands, a K-bit bitmap is used, and the k-th bit corresponds to the k-th subband, and if the k-th bit is “0”, it means that the CSI of the k-th subband basically corresponds to the first or second CRI (i.e., the first CSI), and if the k-th bit is “1”, it means that the CSI of the k-th subband basically corresponds to the first and second CRI (i.e., the second CSI).

[0062] In the second implementation method, when instruction information is used to indicate that the type of CSI included in the CSI report is the first CSI, the CSI report may include CSI measurement resource information, and this CSI measurement resource information is used to indicate a single CSI measurement resource, and the first CSI corresponds to this single CSI measurement resource. In this case, it means that the CSI on the broadband or all subbands corresponds to only one group of CSI measurement resources.

[0063] Alternatively, the CSI report may include CSI measurement resource information and CSI measurement resource instruction information. The CSI measurement resource information may refer to the description of N CSI measurement resource information in the first implementation method above, and the description is omitted here. The CSI measurement resource information is used to indicate N CSI measurement resources, and the CSI measurement resource instruction information is used to indicate one CSI measurement resource corresponding to the first CSI, and this one CSI measurement resource belongs to the N CSI measurement resources. Optionally, when N=2, the CSI measurement resource instruction information may be a bitmap.

[0064] For example, if the CSI measurement resource information is CRI and the CSI measurement resource indication information is bitmap, and N=2, the terminal equipment reports two CRIs (N=2) and a bitmap. The CRI is used to indicate two CSI measurement resources, and the bitmap is used to indicate the CRI (i.e., TRP) corresponding to the first CSI (broadband (1 bit) or subband (K bits)). If there are K subbands, a K-bit bitmap is used, and the k-th bit corresponds to the k-th subband. If the k-th bit is “0”, it means that the CSI of the k-th subband corresponds to the first CRI, and if the k-th bit is “1”, it means that the CSI of the k-th subband corresponds to the second CRI.

[0065] In a third implementation method, when the instruction information is used to indicate that the type of CSI included in the CSI report is the second CSI, the CSI report may include CSI measurement resource information, the CSI measurement resource information is used to indicate N CSI measurement resources, the second CSI corresponds to these N CSI measurement resources, and N is an integer greater than 1.

[0066] Alternatively, the CSI report may include CSI measurement resource information and CSI measurement resource instruction information. Among these, the CSI measurement resource information is used to indicate N CSI measurement resources, where N is an integer greater than or equal to 2. The CSI measurement resource instruction information is used to indicate Q CSI measurement resource information corresponding to the second CSI, where Q is an integer greater than 1 and less than or equal to N, and the Q CSI measurement resources belong to the N CSI measurement resources. Optionally, when N=2, the CSI measurement resource instruction information may be a bitmap.

[0067] For example, if the CSI measurement resource information is CRI and the CSI measurement resource indication information is bitmap, N=4 and Q=2, the terminal equipment reports four CRIs (N=4) and a bitmap. The CRI is used to indicate four CSI measurement resources, and the bitmap is used to indicate Q CRIs (i.e., TRPs) corresponding to the second CSI (broadband or each subband). If there are K subbands, each subband uses a 4-bit bitmap, and the n-th bit corresponds to the n-th CRI among the N CRIs. If the n-th bit is “0,” it means that the CSI of this subband does not correspond to the n-th CRI, and if the n-th bit is “1,” it means that the CSI of this subband corresponds to the n-th CRI. Since Q=2, only two bits can be “1” in the 4-bit bitmap of this subband.

[0068] It should be noted that when the above multiple CSI measurement resource groups are each composed of a CSI resource configuration associated with a CSI report configuration and a CSI resource configuration associated with another CSI report configuration, the CSI report may include N-1 CSI measurement resource information, and these N-1 CSI measurement resource information correspond to the CSI resource configuration associated with the other CSI report configuration.

[0069] In the fourth implementation method, when instruction information is used to indicate that the CSI types included in the CSI report are the first CSI and the second CSI, the contents included in the CSI report can be divided into at least the following four cases.

[0070] First case: A CSI report includes CSI measurement resource information and CSI measurement resource instruction information, the CSI measurement resource information is used to indicate N CSI measurement resources, the second CSI corresponds to these N CSI measurement resources, N is an integer greater than 1, and the CSI measurement resource instruction information is used to indicate one CSI measurement resource corresponding to the first CSI, and this one CSI measurement resource belongs to the N CSI measurement resources.

[0071] For example, if the CSI measurement resource information is CRI and the CSI measurement resource indication information is bitmap and N=2, the terminal equipment reports two CRIs, the second CSI corresponds to these two CRIs, and the first CSI corresponds to one of the CRIs. In addition, the terminal equipment further reports a bitmap, and the bitmap is used to indicate the CRI corresponding to the first CSI (broadband (1 bit) or subband (K bits)). Optionally, the first CSI may correspond to the first or second CRI by default.

[0072] In the first case, it should be noted that the TRP corresponding to the first CSI is one of the TRPs corresponding to the second CSI.

[0073] Second case: The CSI report includes CSI measurement resource information, first CSI measurement resource instruction information, and second CSI measurement resource instruction information, the CSI measurement resource information is used to indicate N CSI measurement resources, where N is an integer greater than 1, the first CSI measurement resource instruction information is used to indicate one CSI measurement resource corresponding to the first CSI, where this one CSI measurement resource belongs to N CSI measurement resources, and the second CSI measurement resource instruction information is used to indicate P CSI measurement resources corresponding to the second CSI, where P is an integer greater than 1 and less than or equal to N, and the P CSI measurement resources belong to N CSI measurement resources.

[0074] For example, if the CSI measurement resource information is CRI and the CSI measurement resource indication information is bitmap and N=2, the terminal equipment reports two CRIs, the first CSI corresponds to one of the CRIs, and the second CSI corresponds to these two CRIs. At the same time, the terminal equipment further reports a bitmap, and the bitmap is used to indicate the CRI corresponding to the first CSI (broadband or subband CSI).

[0075] Third case: The CSI report includes first CSI measurement resource information, second CSI measurement resource information, first CSI measurement resource instruction information, and second CSI measurement resource instruction information. The first CSI measurement resource information is used to indicate N1 CSI measurement resources, and the second CSI measurement resource information is used to indicate N2 CSI measurement resources, and the N1 CSI measurement resources and N2 CSI measurement resources belong to the said N CSI measurement resources, and N is an integer greater than 2, N1 is an integer greater than or equal to 1, and N2 is an integer greater than or equal to 2.

[0076] The first CSI measurement resource instruction is used to indicate one CSI measurement resource corresponding to the first CSI, and this one CSI measurement resource belongs to N1 CSI measurement resources, and the second CSI measurement resource instruction is used to indicate B CSI measurement resources corresponding to the second CSI, where B is an integer greater than 1 and less than or equal to N2, and the B CSI measurement resources belong to N2 CSI measurement resources.

[0077] It should be noted that the union of the specified N1 CSI measurement resources and N2 CSI measurement resources is N CSI measurement resources, meaning that the specified N1 CSI measurement resources and N2 CSI measurement resources may include the same CSI measurement resources, and in this case, the sum of N1 and N2 is greater than N, and if the specified N1 CSI measurement resources and N2 CSI measurement resources are all different CSI measurement resources, the sum of N1 and N2 is equal to N.

[0078] Fourth case: The CSI report includes first CSI measurement resource information, second CSI measurement resource information, and CSI measurement resource instruction information, and the first CSI measurement resource information is used to indicate one CSI measurement resource corresponding to the first CSI, and this one CSI measurement resource belongs to the N CSI measurement resources, among which N is an integer greater than 1.

[0079] The second CSI measurement resource information is used to indicate N3 CSI measurement resources, and these N3 CSI measurement resources belong to the N CSI measurement resources. The CSI measurement resource indication information is used to indicate B CSI measurement resources corresponding to the second CSI, where B is an integer greater than 1 and less than or equal to N3, and the B CSI measurement resources belong to the N3 CSI measurement resources.

[0080] The union of a single designated CSI measurement resource and N3 CSI measurement resources is N CSI measurement resources, meaning that the single designated CSI measurement resource and the N3 CSI measurement resources may include the same CSI measurement resource (the single designated CSI measurement resource belongs to the N3 CSI measurement resources), where N3 is equal to N, and if the single designated CSI measurement resource and the N3 CSI measurement resources are different from each other, N3 is equal to N-1.

[0081] In the third and fourth cases above, the terminal equipment reports CSI measurement resource information corresponding to the first CSI and CSI measurement resource information corresponding to the second CSI, respectively.

[0082] For the above four implementation methods, the terminal equipment can select one of the implementation methods according to the specific instructions of the instruction information and generate the corresponding CSI report.

[0083] In an embodiment of the present invention, when a terminal device reports a second CSI, the second CSI may include L Rank Indicators (RI) and P CSIs, where L is an integer greater than or equal to 1 and less than or equal to N, and P is an integer greater than or equal to 1 and less than or equal to N. Among these, if the second CSI includes one RI (i.e., L=1), it means that the RI corresponding to the P CSIs is one RI, or that the sum of the P RIs corresponding to the P CSIs is equal to this one RI, and if the second CSI includes P RIs (i.e., L=P), it means that each of the P CSIs corresponds to one RI.

[0084] For P CSIs, for each CSI, one CSI is specifically a subset of CSIs obtained from P CSI measurement resources, and this subset of CSIs can correspond to one of the P CSI measurement resources.

[0085] In an embodiment of the present invention, one CSI may include at least one of a broadband CSI and a subband CSI, wherein the broadband CSI may include at least one of a broadband Precoding Matrix Indicator (PMI) and a broadband Channel Quality Indicator (CQI), and the subband CSI includes at least one of a subband PMI and a subband CQI, wherein the subband PMI includes a part of the broadband PMI and parts of K subband PMIs, and the subband CQI includes a part of the broadband CQI and parts of K subband CQIs.

[0086] Optionally, in an embodiment of the present invention, the terminal equipment may report one CSI report for each TRP, and in this case, the CSI report may include one CSI measurement resource information or specific CSI measurement resource information, or may not include CSI measurement resource information. Among these, specific CSI measurement resource information may indicate that a target CSI is not included in the CSI report, and this target CSI may be a CSI corresponding to the one CSI measurement resource information (corresponding to reporting one CSI measurement resource information) or a CSI of a CSI measurement resource group corresponding to a CSI resource configuration associated with the CSI report configuration (corresponding to not reporting CSI measurement resource information).

[0087] Additionally, if the CSI report includes information on a single CSI measurement resource or does not include information on CSI measurement resource instructions, the CSI report may indicate whether the target CSI is included. Among these, when the terminal equipment indicates whether the target CSI is included, it may indicate this through a bitmap.

[0088] If the CSI measurement resource information is exemplified by a CRI, if there are K subbands, a K-bit bitmap is used, where the k-th bit corresponds to the k-th subband. If the k-th bit is “0”, it means that the k-th subband does not contain a CSI corresponding to this CRI (when reporting a single CRI) or a CSI-RS resource associated with this CSI configuration (when not reporting a CRI) (i.e., the CSI does not correspond to this TRP, and it is recommended that the terminal equipment not be scheduled by this TRP). If the k-th bit is “1”, it means that the k-th subband contains a CSI corresponding to this CRI (when reporting a single CRI) or a CSI-RS resource associated with this CSI configuration (when not reporting a CRI) (i.e., it may be a second CSI corresponding to this TRP or a first CSI corresponding to this TRP).

[0089] In S104, after the terminal equipment generates a CSI report, it can perform S106.

[0090] S106: Report CSI report.

[0091] In S106, when the terminal equipment reports a CSI report, it can report according to the configuration of the CSI report configuration.

[0092] For example, in a CSI reporting configuration, if the terminal equipment is configured to report CSI reports periodically, the terminal equipment can generate periodic CSI reports (P-CSI) and transmit CSI reports on the Physical Uplink Control Channel (PUCCH); if the terminal equipment is configured to report CSI reports semi-persistently, the terminal equipment can generate semi-persistent CSI reports (SP-CSI) and transmit CSI reports on the PUCCH or the Physical Uplink Shared Channel (PUSCH); and if the terminal equipment is configured to report CSI reports non-periodically, the terminal equipment can generate aperiodic CSI reports (AP-CSI) and transmit CSI reports on the PUSCH.

[0093] In an embodiment of the present invention, network equipment can be implemented such that different TRPs correspond to different CSI measurement resource groups by configuring CSI measurement resources corresponding to CSI reporting configurations into one or more CSI measurement resource groups. Accordingly, when reporting a CSI report, terminal equipment can effectively select one or more TRPs based on one or more CSI measurement resource groups corresponding to the CSI reporting configurations to perform CSI measurement and report a CSI report. In the case of network equipment, network equipment can effectively determine one or more TRPs based on the CSI report to perform resource scheduling.

[0094] FIG. 2 is a flowchart of a feedback method for a CSI report according to an embodiment of the present invention. This method may be performed by electronic equipment such as network equipment. In other words, the method may be performed by software or hardware installed on network equipment. As illustrated in FIG. 2, this method may include the following steps.

[0095] S202: Transmit a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration to a terminal device, wherein each CSI measurement resource group includes one or more CSI measurement resources, each CSI measurement resource group includes a channel measurement resource group and / or an interference measurement resource group, and each CSI measurement resource includes a channel measurement resource and / or an interference measurement resource.

[0096] In S202, before performing resource scheduling for a terminal device based on multi-TRP technology, the network device may configure a CSI reporting configuration of multiple TRPs for the terminal device and one or more CSI measurement resource groups corresponding to this CSI reporting configuration, and transmit them to the terminal device. Among these, each CSI measurement resource group includes one or more CSI measurement resources, each CSI measurement resource group includes a channel measurement resource group and / or an interference measurement resource group, and each CSI measurement resource includes a channel measurement resource and / or an interference measurement resource. Optionally, different CSI measurement resource groups may have different QCLs, and different CSI measurement resource groups correspond to different TRPs.

[0097] In an embodiment of the present invention, one CSI measurement resource includes one channel measurement resource, and this channel measurement resource includes a CSI-RS resource or an SSB resource group. Or, one CSI measurement resource includes one interference measurement resource, and this interference measurement resource includes a CSI-IM resource. Or, one CSI measurement resource includes one channel measurement resource or one interference measurement resource, and this channel measurement resource and the interference measurement resource include some or all of the CSI-RS ports of one CSI-RS resource. Specifically, reference may be made to the relevant details described in the embodiment illustrated in FIG. 1, and a description is omitted here.

[0098] Optionally, if there are multiple CSI measurement resource groups, the multiple CSI measurement resource groups are configured by a single CSI resource configuration associated with the CSI reporting configuration. Alternatively, the multiple CSI measurement resource groups are each configured by a CSI resource configuration associated with the CSI reporting configuration and a CSI resource configuration associated with another CSI reporting configuration. Among these, an association exists between the CSI reporting configuration and the other CSI reporting configuration, and this association can be pre-configured or directed by network equipment.

[0099] Specifically, when a CSI report configuration corresponds to multiple CSI measurement resource groups, the network equipment configures or directs the association between the CSI report configuration and other CSI report configurations when transmitting the CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration to the terminal equipment. Among these, the network equipment may configure or direct through RRC signaling, MAC CE signaling, or DCI, etc.

[0100] In an embodiment of the present invention, after a network device transmits a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration to a terminal device, the terminal device may generate a CSI report according to the CSI report configuration and one or more CSI measurement resource groups corresponding thereto, and a specific implementation method may refer to the relevant content in the embodiment shown in FIG. 1, and a description is omitted here.

[0101] A CSI report generated by a terminal device may include at least one of a first CSI and a second CSI, wherein the first CSI is a CSI obtained by one CSI measurement resource, and the one CSI measurement resource belongs to one of the one or more CSI measurement resource groups, and the second CSI is a CSI obtained by N CSI measurement resources, wherein N is greater than 1, and the N measurement resources belong to more than one CSI measurement resource group, or the N CSI measurement resources each belong to N CSI measurement resource groups. After the terminal device generates a CSI report, the network device may indicate the CSI included in the CSI report in order to facilitate the terminal device reporting the CSI report.

[0102] Specifically, before the network equipment receives a CSI report from the terminal equipment, it may transmit instruction information to the terminal equipment, and this instruction information may be used to instruct the terminal equipment to select whether to report a first CSI or a second CSI, and additionally, this instruction information may be used to instruct the type of CSI to be included in the CSI report, and the type of CSI includes a first CSI, a second CSI, or a first CSI and a second CSI.

[0103] In this way, the terminal equipment can generate the corresponding CSI report according to the instructions of the network equipment. Specifically, the relevant details in the embodiment illustrated in FIG. 1 may be referred to, and a description thereof is omitted here.

[0104] S204: Receive a CSI report from the terminal equipment, wherein the CSI report is determined by the terminal equipment according to the CSI report configuration and one or more CSI measurement resource groups.

[0105] In S204, the terminal equipment can generate a CSI report and then feed back the CSI report to the network equipment. Among these, when the network equipment transmits the instruction information to the terminal equipment, the CSI report received by the network equipment may include at least one of CSI measurement resource information and CSI measurement resource instruction information. Among these, the CSI measurement resource information may be used to indicate N CSI measurement resources, and the CSI measurement resource instruction information may be used to indicate a CSI measurement resource corresponding to the first CSI or the second CSI. The CSI measurement resource information indicated by the CSI measurement resource instruction information belongs to the N CSI measurement resources. Specifically, reference may be made to the contents described in the embodiment illustrated in FIG. 1, and a description is omitted here.

[0106] Optionally, when terminal equipment feeds back a single CSI report to each TRP, the CSI report received by the network equipment may include a single CSI measurement resource information or specific CSI measurement resource information, or may not include CSI measurement resource information. Specific CSI measurement resource information is used to indicate that the target CSI is not included in the CSI report, and if the CSI report includes a single CSI measurement resource information or does not include CSI measurement resource indication information, the inclusion of the target CSI is also indicated in the CSI report. Among these, the target CSI includes the CSI corresponding to this single CSI measurement resource information, or the CSI of the CSI measurement resource group corresponding to the CSI resource configuration associated with the CSI report configuration. Specifically, reference may be made to the contents described in the embodiment illustrated in FIG. 1, but a description is omitted here.

[0107] After receiving a CSI report, the network equipment may determine one or more TRPs based on the CSI report and perform resource scheduling based on the one or more TRPs. Among these, if the CSI report includes at least one of the N CSI measurement resource information and CSI measurement resource instruction information, the network equipment may determine one or more TRPs based on at least one of the N CSI measurement resource information and CSI measurement resource instruction information, and after determining one or more TRPs, may perform resource scheduling for terminal equipment based on the one or more TRPs. Among these, the transmission method when the network equipment performs resource scheduling for terminal equipment based on one TRP is DPS, and the transmission method when performing resource scheduling based on multiple TRPs may be NCJT, SFN, SDM, FDM, or TDM.

[0108] In an embodiment of the present invention, network equipment can be implemented such that different TRPs correspond to different CSI measurement resource groups by configuring CSI measurement resources corresponding to CSI reporting configurations into one or more CSI measurement resource groups. Accordingly, when reporting a CSI report, terminal equipment can effectively select one or more TRPs based on one or more CSI measurement resource groups corresponding to the CSI reporting configurations to perform CSI measurement and report a CSI report. In the case of network equipment, network equipment can effectively determine one or more TRPs based on the CSI report to perform resource scheduling.

[0109] As described above, specific embodiments of this specification have been described. Other embodiments are also included within the scope of the appended claims. In some cases, the operations or steps described in the claims may be performed in a different order than in the embodiments and may still achieve the desired results. Furthermore, the processes illustrated in the drawings must not necessarily be implemented in the specific order or sequential order shown to obtain the desired results. In some embodiments, multitasking and parallel processing may also be possible or advantageous.

[0110] FIG. 3 is a schematic diagram of the structure of a terminal device according to an embodiment of the present invention, wherein the terminal device comprises: an acquisition module (31) configured to acquire a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration - each CSI resource group includes one or more CSI measurement resources, each CSI measurement resource group includes a channel measurement resource group and / or an interference measurement resource group, and each CSI measurement resource includes a channel measurement resource and / or an interference measurement resource -; a generation module (32) configured to generate a CSI report according to the CSI report configuration and the one or more CSI measurement resource groups, and a reporting module (33) configured to report the CSI report.

[0111] Optionally, one CSI measurement resource includes one channel measurement resource, said channel measurement resource includes a Channel State Information Reference Signal (CSI-RS) resource or a Synchronization Signal Block (SSB) resource. Or, one CSI measurement resource includes one interference measurement resource, said interference measurement resource includes a Channel State Information Interference Measurement (CSI-IM) resource. Or, one CSI measurement resource includes one channel measurement resource or one interference measurement resource, said channel measurement resource and said interference measurement resource include some or all of the CSI-RS ports of a single CSI-RS resource.

[0112] Optionally, the plurality of CSI measurement resource groups are configured by a single CSI resource configuration associated with the CSI reporting configuration. Alternatively, the plurality of CSI measurement resource groups are each configured by a CSI resource configuration associated with the CSI reporting configuration and a CSI resource configuration associated with the other CSI reporting configuration. Here, the association between the CSI reporting configuration and the other CSI reporting configuration may be configured or indicated by network equipment.

[0113] Optionally, the generation module (32) generating a CSI report according to the CSI report configuration and the one or more CSI measurement resources includes selecting N CSI measurement resources from the one or more CSI measurement resource groups - N is an integer greater than 0 and less than or equal to M, and M is the number of groups of the more CSI measurement resource groups - and generating the CSI report according to the N CSI measurement resources.

[0114] Optionally, the CSI report comprises at least one of a first CSI and a second CSI, wherein the first CSI is a CSI obtained by one CSI measurement resource, and the one CSI measurement resource belongs to one of the one or more CSI measurement resource groups, and the second CSI is a CSI obtained by N CSI measurement resources, wherein N is greater than 1, and the N measurement resources belong to multiple CSI measurement resource groups, or the N CSI measurement resources each belong to N CSI measurement resource groups.

[0115] Optionally, the transmission method corresponding to the second CSI is any one of Non-Coherent Joint Transmission (NCJT), Single Frequency Network (SFN), Spatial Division Multiplexing (SDM), Frequency Division Multiplexing (FDM), and Time Division Multiplexing (TDM), wherein the transmission method corresponding to the second CSI is indicated by the network equipment or agreed upon in advance by the network equipment and the terminal equipment.

[0116] Optionally, the acquisition module (31) receives instruction information from network equipment before the reporting module (33) reports the CSI report, and the instruction information is used to instruct the terminal equipment to select whether to report the first CSI or the second CSI, or, the instruction information is used to instruct the CSI type to be included in the CSI report, and the CSI type includes the first CSI, the second CSI, or the first CSI and the second CSI.

[0117] Optionally, when the above instruction information instructs the terminal equipment to select whether to report the first CSI or the second CSI, the CSI report includes CSI measurement resource information and CSI measurement resource instruction information, the CSI measurement resource information is used to indicate the N CSI measurement resources, and the CSI measurement resource instruction information is used to indicate P CSI measurement resources corresponding to the first CSI or the second CSI, the P CSI measurement resources belong to the N CSI measurement resources, P is an integer greater than or equal to 1 and less than or equal to N, and N is an integer greater than or equal to 2, wherein when P=1, the CSI report includes the first CSI, and when P is greater than 1, the CSI report includes the second CSI.

[0118] Optionally, if the above-mentioned instruction information is used to indicate that the CSI type included in the above-mentioned CSI report is the first CSI, the above-mentioned CSI report includes CSI measurement resource information, the above-mentioned CSI measurement resource information is used to indicate one CSI measurement resource, and the first CSI corresponds to the one CSI measurement resource. Or, the above-mentioned CSI report includes CSI measurement resource information and CSI measurement resource instruction information, the above-mentioned CSI measurement resource information is used to indicate the N CSI measurement resources, the above-mentioned CSI measurement resource instruction information is used to indicate one CSI measurement resource corresponding to the first CSI, and the one CSI measurement resource belongs to the N CSI measurement resources.

[0119] Optionally, if the above-mentioned instruction information is used to indicate that the CSI type included in the above-mentioned CSI report is the second CSI, the above-mentioned CSI report includes CSI measurement resource information, the above-mentioned CSI measurement resource information is used to indicate the N CSI measurement resources, and the second CSI corresponds to the N CSI measurement resources. Or, the above-mentioned CSI report includes CSI measurement resource information and CSI measurement resource instruction information, the above-mentioned CSI measurement resource information is used to indicate the N CSI measurement resources, and the above-mentioned CSI measurement resource instruction information is used to indicate Q CSI measurement resources corresponding to the second CSI, the above-mentioned Q CSI measurement resources belong to the N CSI measurement resources, Q is an integer greater than 1 and less than or equal to N, and N is an integer greater than or equal to 2.

[0120] Optionally, when the above-mentioned instruction information is used to indicate that the CSI types included in the above-mentioned CSI report are the first CSI and the second CSI, the above-mentioned CSI report includes CSI measurement resource information and CSI measurement resource instruction information, the above-mentioned CSI measurement resource information is used to indicate the N CSI measurement resources, the second CSI corresponds to the N CSI measurement resources, the above-mentioned CSI measurement resource instruction information is used to indicate one CSI measurement resource corresponding to the first CSI, and the one CSI measurement resource belongs to the N CSI measurement resources. Alternatively, the above CSI report includes the above CSI measurement resource information, the first CSI measurement resource instruction information, and the second CSI measurement resource instruction information, wherein the first CSI measurement resource instruction information is used to indicate one CSI measurement resource corresponding to the first CSI, and the second CSI measurement resource instruction information is used to indicate P CSI measurement resources corresponding to the second CSI, and the one CSI measurement resource and the P CSI measurement resources belong to the N CSI measurement resources, and P is an integer greater than 1 and less than or equal to N.Alternatively, the above CSI measurement report includes first CSI measurement resource information, second CSI measurement resource information, first CSI measurement resource instruction information, and second CSI measurement resource instruction information, wherein the first CSI measurement resource information is used to indicate N1 CSI measurement resources, the second CSI measurement resource information is used to indicate N2 CSI measurement resources, the first CSI measurement resource instruction information is used to indicate one CSI measurement resource corresponding to the first CSI, the second CSI measurement resource instruction information is used to indicate B CSI measurement resources corresponding to the second CSI, the one CSI measurement resource belongs to the N1 CSI measurement resources, the B CSI measurement resources belong to the N2 CSI measurement resources, the N1 CSI measurement resources and the N2 CSI measurement resources belong to the N CSI measurement resources, the union of the N1 CSI measurement resources and the N2 CSI measurement resources is the N CSI measurement resources, and N1 is greater than or equal to 1 N2 is an integer greater than or equal to 2, and B is an integer greater than 1 and less than or equal to N2.Alternatively, the above CSI report includes first CSI measurement resource information, second CSI measurement resource information, and CSI measurement resource instruction information, wherein the first CSI measurement resource information is used to indicate one CSI measurement resource corresponding to the first CSI, the second CSI measurement resource information is used to indicate N3 CSI measurement resources, and the CSI measurement resource instruction information is used to indicate B CSI measurement resources corresponding to the second CSI, N3 is an integer greater than 1, the B CSI measurement resources belong to the N3 CSI measurement resources, the union of the one CSI measurement resource and the N3 CSI measurement resources is the N CSI measurement resources, and B is an integer greater than 1 and less than or equal to N3.

[0121] Optionally, the second CSI comprises L rank indicators (RIs) and P CSIs, wherein one of the P CSIs is a partial CSI among the CSIs obtained by P CSI measurement resources, and the partial CSI corresponds to one of the P CSI measurement resources, L is an integer greater than or equal to 1 and less than or equal to N, and P is an integer greater than 1 and less than or equal to N, wherein when L=1, the RI corresponding to the P CSIs is a single RI or the sum of the P RIs corresponding to the P CSIs is equal to the single RI, and when L=P, the P CSIs each correspond to a single RI, and the single CSI comprises at least one of a broadband CSI and a subband CSI, wherein the broadband CSI comprises at least one of a broadband precoding matrix indicator (PMI) and a broadband channel quality indicator (CQI), and the subband CSI comprises at least one of a subband PMI and a subband CQI It includes, wherein the subband PMI includes a portion of the broadband PMI and a portion of K subband PMIs, and the subband CQI includes a portion of the broadband CQI and a portion of K subband CQIs.

[0122] Optionally, the CSI report may include one CSI measurement resource information or specific CSI measurement resource information, or may not include CSI measurement resource information, and the specific CSI measurement resource information is used to indicate that the target CSI is not included in the CSI report; and if the CSI report includes one CSI measurement resource information or does not include CSI measurement resource indication information, the inclusion of the target CSI is also indicated in the CSI report, and the target CSI includes the CSI corresponding to the one CSI measurement resource information or the CSI of the CSI measurement resource group corresponding to the CSI resource configuration associated with the CSI report configuration.

[0123] Optionally, the CSI measurement resource information includes CSI measurement resource group number information and / or CSI measurement resource number information within the CSI measurement resource group, or the CSI measurement resource information includes a CSI measurement resource or a CSI measurement resource number, and the CSI measurement resource or the CSI measurement resource number is used to determine the CSI measurement resource group number information and / or the CSI measurement resource number information within the CSI measurement resource group.

[0124] Optionally, when the CSI measurement resource is a CSI-RS resource or a CSI-IM resource, the N CSI measurement resource information is determined by the CSI-RS resource indicator (CRI) in the CSI report.

[0125] A terminal device according to an embodiment of the present invention can implement each process implemented by the terminal device in the method embodiment of FIG. 1, and to avoid repetition, a detailed description is omitted here. In an embodiment of the present invention, the network device can be implemented such that different TRPs correspond to different CSI measurement resource groups by configuring CSI measurement resources corresponding to the CSI report configuration into one or more CSI measurement resource groups. Accordingly, when reporting a CSI report, the terminal device can effectively select one or more TRPs based on one or more CSI measurement resource groups corresponding to the CSI report configuration to perform CSI measurement and report the CSI report. In the case of the network device, the network device can effectively determine one or more TRPs based on the CSI report to perform resource scheduling.

[0126] FIG. 4 is a schematic diagram of the structure of a network equipment according to an embodiment of the present invention, wherein the network equipment comprises: a transmitting module (41) configured to transmit a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration to a terminal equipment - each CSI measurement resource group includes one or more CSI measurement resources, each CSI measurement resource group includes a channel measurement resource group and / or an interference measurement resource group, and each CSI measurement resource includes a channel measurement resource and / or an interference measurement resource -; and a receiving module (42) configured to receive a CSI report from the terminal equipment; wherein the CSI report is determined by the terminal equipment according to the CSI report configuration and the one or more CSI measurement resource groups.

[0127] Optionally, the network equipment includes a configuration module (43), wherein the configuration module (43) configures or indicates the association between the CSI report configuration and the other report configuration when the transmission module (41) transmits a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration to a terminal device, and when the multiple CSI measurement resource groups are each configured by a CSI resource configuration associated with the CSI report configuration and a CSI resource configuration associated with other CSI report configurations.

[0128] Optionally, the transmitting module (41) transmits instruction information to the terminal equipment before the receiving module (42) receives the CSI report from the terminal equipment, and the instruction information is used to instruct the terminal equipment to select whether to report the first CSI or the second CSI, or, the instruction information is used to instruct the CSI type to be included in the CSI report, the CSI type includes the first CSI, the second CSI, or the first CSI and the second CSI.

[0129] Optionally, the CSI report includes at least one of CSI measurement resource information and CSI measurement resource instruction information, the CSI measurement resource information is used to indicate N CSI measurement resources, and the CSI measurement resource instruction information is used to indicate a CSI measurement resource corresponding to the first CSI or the second CSI, wherein the receiving module (42), after receiving the CSI report from the terminal equipment, determines one or more transmission / reception points (TRP) according to at least one of the CSI measurement resource information and CSI measurement resource instruction information, and performs resource scheduling for the terminal equipment according to the one or more TRPs.

[0130] Network equipment according to an embodiment of the present invention can implement each process implemented by network equipment in the method embodiment of FIG. 2, and to avoid repetition, a detailed description is omitted here. In an embodiment of the present invention, network equipment can be implemented such that different TRPs correspond to different CSI measurement resource groups by configuring CSI measurement resources corresponding to CSI reporting configurations into one or more CSI measurement resource groups. Accordingly, when reporting a CSI report, terminal equipment can effectively select one or more TRPs based on one or more CSI measurement resource groups corresponding to the CSI reporting configuration to perform CSI measurement and report a CSI report. In the case of network equipment, network equipment can effectively determine one or more TRPs based on the CSI report to perform resource scheduling.

[0131] FIG. 5 is a schematic diagram of the structure of a terminal device according to an embodiment of the present invention. The terminal device (500) illustrated in FIG. 5 includes at least one processor (501), a memory (502), at least one network interface (504), and a user interface (503). Each component of the mobile terminal (500) is connected via a bus system (505). The bus system (505) is used to implement connection and communication between these components. In addition to a data bus, the bus system (505) includes a power bus, a control bus, and a status signal bus. However, for clarity, FIG. 5 shows each bus integrated into the bus system (505).

[0132] The above user interface (503) may include a display device, a keyboard, a click device (e.g., a mouse, a trackball), a touch panel, or a touch screen.

[0133] In an embodiment of the present invention, the memory (502) may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among these, the non-volatile memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash memory. The volatile memory may be a Random Access Memory (RAM) used as an external high-speed cache. Through exemplary but not limiting descriptions, numerous forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (Synchlink DRAM, SLDRAM), direct Rambus random access memory (DRRAM), etc. The memory (502) of the system and method described in the embodiments of the present invention includes these and any other suitable type of memory, but is not limited thereto.

[0134] In some embodiments, the memory (502) stores components such as executable modules or data structures, or a subset thereof, or an extended set thereof, an operating system (5021), and applications (5022).

[0135] The above operating system (5021) includes various system programs such as a framework layer, a core library layer, and a driver layer for implementing various basic services and processing hardware-based services. The application (5022) includes various applications such as a media player and a browser for implementing various application services. A program for implementing the method of an embodiment of the present invention may be included in the application (5022).

[0136] In an embodiment of the present invention, a terminal device (500) includes a computer program that is stored in memory (502) and can be executed on a processor (501), and when the computer program is executed by the processor (501), the device implements the steps of: acquiring a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration—each CSI measurement resource group includes one or more CSI measurement resources, each CSI measurement resource group includes a channel measurement resource group and / or an interference measurement resource group, and each CSI measurement resource includes a channel measurement resource and / or an interference measurement resource—; generating a CSI report according to the CSI report configuration and the one or more CSI measurement resource groups; and reporting the CSI report.

[0137] The method disclosed in the above embodiment of the present invention may be applied to or implemented by a processor (501). The processor (501) may be an integrated circuit chip having signal processing capabilities. In the implementation process, each step of the above-described method embodiment may be executed by an integrated logic circuit or a software-type instruction of the hardware of the processor (501). The processor (501) may be implemented through a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic elements, discrete circuits or transistor-transistor logic elements, or discrete hardware elements. Each method, step, and logical diagram disclosed in the embodiment of the present invention may be implemented or executed. The general-purpose processor may be a microprocessor, or any general processor, etc. The steps of the method disclosed in the embodiments of the present invention may be directly implemented by being executed and completed by a hardware decoding processor, or may be implemented by being executed and completed by a combination of hardware and software modules in a decoding processor. The software modules may be stored in a computer-readable storage medium reliable in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable read-only memory and registers. The computer-readable storage medium is located in memory (502), and the processor (501) reads information within memory (502) and completes the steps of the method through hardware.Specifically, this computer-readable storage medium has a computer program stored on it, and when the computer program is executed by the processor (501), each step of the example of the feedback method of the CSI report is implemented.

[0138] Embodiments of the present invention may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. In a hardware implementation, the processing unit may be implemented through one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processor, Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general-purpose processor, controller, microcontroller, microprocessor, and other electronic devices for performing the functions of the present invention, or a combination thereof.

[0139] For software implementation, the techniques described in the embodiments of the present invention may be implemented through modules (e.g., procedures, functions, etc.) that perform the functions described in the embodiments of the present invention. Software code may be stored in memory and executed by a processor. Memory may be implemented in the processor or outside the processor.

[0140] Optionally, when a computer program is executed by a processor (501), one CSI measurement resource includes one channel measurement resource, said channel measurement resource includes a channel state information reference signal (CSI-RS) resource or a synchronization signal block (SSB) resource, or one CSI measurement resource includes one interference measurement resource, said interference measurement resource includes a channel state information interference measurement (CSI-IM) resource, or one CSI measurement resource includes one channel measurement resource or one interference measurement resource, and said channel measurement resource and said interference measurement resource include some or all of the CSI-RS ports of one CSI-RS resource.

[0141] The above-mentioned plurality of CSI measurement resource groups are configured by a single CSI resource configuration associated with the above-mentioned CSI reporting configuration. Alternatively, the above-mentioned plurality of CSI measurement resource groups are each configured by a CSI resource configuration associated with the above-mentioned CSI reporting configuration and a CSI resource configuration associated with another CSI reporting configuration. Here, the relationship between the above-mentioned CSI reporting configuration and the other CSI reporting configuration may be configured or indicated by network equipment.

[0142] The step of generating a CSI report according to the above CSI report configuration and the above one or more CSI measurement resources includes the step of selecting N CSI measurement resources from the above one or more CSI measurement resource group - where N is an integer greater than 0 and less than or equal to M, and M is the number of groups of the above more than CSI measurement resource group -; and the step of generating the CSI report according to the above N CSI measurement resources.

[0143] The above CSI report includes at least one of a first CSI and a second CSI, wherein the first CSI is a CSI obtained by one CSI measurement resource, and the one CSI measurement resource belongs to one of the one or more CSI measurement resource groups, and the second CSI is a CSI obtained by N CSI measurement resources, wherein N is greater than 1, and the N CSI measurement resources belong to multiple CSI measurement resource groups, or the N CSI measurement resources each belong to N CSI measurement resource groups.

[0144] The transmission method corresponding to the second CSI above is any one of Non-Coherent Joint Transmission (NCJT), Single Frequency Network (SFN), Spatial Division Multiplexing (SDM), Frequency Division Multiplexing (FDM), and Time Division Multiplexing (TDM), wherein the transmission method corresponding to the second CSI above is indicated by the network equipment or is agreed upon in advance by the network equipment and the terminal equipment.

[0145] Prior to the step of reporting the above CSI report, the method further comprises the step of receiving instruction information from network equipment, wherein the instruction information is used to instruct the terminal equipment to select whether to report the first CSI or the second CSI, or, the instruction information is used to instruct the CSI type to be included in the CSI report, and the CSI type includes the first CSI, the second CSI, or the first CSI and the second CSI.

[0146] When the above instruction information instructs the terminal equipment to select whether to report the first CSI or the second CSI, the CSI report includes CSI measurement resource information and CSI measurement resource instruction information, the CSI measurement resource information is used to indicate the N CSI measurement resources, and the CSI measurement resource instruction information is used to indicate P CSI measurement resources corresponding to the first CSI or the second CSI, the P CSI measurement resources belong to the N CSI measurement resources, P is an integer greater than or equal to 1 and less than or equal to N, and N is an integer greater than or equal to 2, wherein when P=1, the CSI report includes the first CSI, and when P is greater than 1, the CSI report includes the second CSI.

[0147] If the above instruction information is used to indicate that the CSI type included in the above CSI report is the first CSI, the above CSI report includes CSI measurement resource information, the above CSI measurement resource information is used to indicate one CSI measurement resource, and the above first CSI corresponds to the above one CSI measurement resource. Alternatively, the above CSI report includes CSI measurement resource information and CSI measurement resource instruction information, the above CSI measurement resource information is used to indicate the above N CSI measurement resources, the above CSI measurement resource instruction information is used to indicate one CSI measurement resource corresponding to the above first CSI, and the above one CSI measurement resource belongs to the above N CSI measurement resources.

[0148] When the above instruction information is used to indicate that the CSI type included in the above CSI report is the second CSI, the above CSI report includes CSI measurement resource information, the above CSI measurement resource information is used to indicate the N CSI measurement resources, and the second CSI corresponds to the N CSI measurement resources. Or, the above CSI report includes CSI measurement resource information and CSI measurement resource instruction information, the above CSI measurement resource information is used to indicate the N CSI measurement resources, and the above CSI measurement resource instruction information is used to indicate Q CSI measurement resources corresponding to the second CSI, the above Q CSI measurement resources belong to the N CSI measurement resources, Q is an integer greater than 1 and less than or equal to N, and N is an integer greater than or equal to 2.

[0149] When the above instruction information is used to indicate that the CSI types included in the above CSI report are the first CSI and the second CSI, the above CSI report includes CSI measurement resource information and CSI measurement resource instruction information, the above CSI measurement resource information is used to indicate the N CSI measurement resources, the second CSI corresponds to the N CSI measurement resources, the above CSI measurement resource instruction information is used to indicate one CSI measurement resource corresponding to the first CSI, and the one CSI measurement resource belongs to the N CSI measurement resources. Alternatively, the above CSI report includes the above CSI measurement resource information, the first CSI measurement resource instruction information, and the second CSI measurement resource instruction information, wherein the first CSI measurement resource instruction information is used to indicate one CSI measurement resource corresponding to the first CSI, and the second CSI measurement resource instruction information is used to indicate P CSI measurement resources corresponding to the second CSI, and the one CSI measurement resource and the P CSI measurement resources belong to the N CSI measurement resources, and P is an integer greater than 1 and less than or equal to N.Alternatively, the above CSI measurement report includes first CSI measurement resource information, second CSI measurement resource information, first CSI measurement resource instruction information, and second CSI measurement resource instruction information, wherein the first CSI measurement resource information is used to indicate N1 CSI measurement resources, the second CSI measurement resource information is used to indicate N2 CSI measurement resources, the first CSI measurement resource instruction information is used to indicate one CSI measurement resource corresponding to the first CSI, the second CSI measurement resource instruction information is used to indicate B CSI measurement resources corresponding to the second CSI, the one CSI measurement resource belongs to the N1 CSI measurement resources, the B CSI measurement resources belong to the N2 CSI measurement resources, the N1 CSI measurement resources and the N2 CSI measurement resources belong to the N CSI measurement resources, the union of the N1 CSI measurement resources and the N2 CSI measurement resources is the N CSI measurement resources, and N1 is greater than or equal to 1 N2 is an integer greater than or equal to 2, and B is an integer greater than 1 and less than or equal to N2.Alternatively, the above CSI report includes first CSI measurement resource information, second CSI measurement resource information, and CSI measurement resource instruction information, wherein the first CSI measurement resource information is used to indicate one CSI measurement resource corresponding to the first CSI, the second CSI measurement resource information is used to indicate N3 CSI measurement resources, and the CSI measurement resource instruction information is used to indicate B CSI measurement resources corresponding to the second CSI, N3 is an integer greater than 1, the B CSI measurement resources belong to the N3 CSI measurement resources, the union of the one CSI measurement resource and the N3 CSI measurement resources is the N CSI measurement resources, and B is an integer greater than 1 and less than or equal to N3.

[0150] The second CSI comprises L rank indicators (RIs) and P CSIs, wherein one of the P CSIs is a partial CSI among the CSIs obtained by P CSI measurement resources, and the partial CSI corresponds to one of the P CSI measurement resources, where L is an integer greater than or equal to 1 and less than or equal to N, and P is an integer greater than 1 and less than or equal to N, wherein when L=1, the RI corresponding to the P CSIs is a single RI, or the sum of the P RIs corresponding to the P CSIs is equal to the single RI, and when L=P, the P CSIs each correspond to a single RI, and the single CSI comprises at least one of a broadband CSI and a subband CSI, wherein the broadband CSI comprises at least one of a broadband precoding matrix indicator (PMI) and a broadband channel quality indicator (CQI), and the subband CSI comprises at least one of a subband PMI and a subband CQI. The above subband PMI includes a portion of the broadband PMI and a portion of K subband PMIs, and the above subband CQI includes a portion of the broadband CQI and a portion of K subband CQIs.

[0151] The above CSI report includes one CSI measurement resource information or specific CSI measurement resource information, or does not include CSI measurement resource information, and the specific CSI measurement resource information is used to indicate that the target CSI is not included in the CSI report; and when the CSI report includes one CSI measurement resource information or does not include CSI measurement resource indication information, the inclusion of the target CSI is also indicated in the CSI report, and the target CSI includes the CSI corresponding to the one CSI measurement resource information or the CSI of the CSI measurement resource group corresponding to the CSI resource configuration associated with the CSI report configuration.

[0152] The above CSI measurement resource information includes CSI measurement resource group number information and / or CSI measurement resource number information within the CSI measurement resource group, or the above CSI measurement resource information includes a CSI measurement resource or a CSI measurement resource number, and the above CSI measurement resource or the above CSI measurement resource number is used to determine the above CSI measurement resource group number information and / or the CSI measurement resource number information within the above CSI measurement resource group.

[0153] When the above CSI measurement resource is a CSI-RS resource or a CSI-IM resource, the information on the N CSI measurement resources is determined by the CSI-RS resource indicator (CRI) within the CSI report.

[0154] The terminal equipment (500) can implement each process implemented by the terminal equipment in the above-described embodiment, and to avoid repetition, a detailed description is omitted here.

[0155] In an embodiment of the present invention, network equipment can be implemented such that different TRPs correspond to different CSI measurement resource groups by configuring CSI measurement resources corresponding to CSI reporting configurations into one or more CSI measurement resource groups. Accordingly, when reporting a CSI report, terminal equipment can effectively select one or more TRPs based on one or more CSI measurement resource groups corresponding to the CSI reporting configurations to perform CSI measurement and report a CSI report. In the case of network equipment, network equipment can effectively determine one or more TRPs based on the CSI report to perform resource scheduling.

[0156] Referring to FIG. 6, FIG. 6 is a structural diagram of network equipment applied to an embodiment of the present invention. As shown in FIG. 6, network equipment (600) includes a processor (601), a transceiver (602), a memory (603), a user interface (604), and a bus interface. In the embodiment of the present invention, network equipment (600) further includes a computer program that can be stored in the memory (603) and executed on the processor (601). When the computer program is executed by the processor (601),

[0157] A step of transmitting a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration to a terminal device - each CSI measurement resource group includes one or more CSI measurement resources, each CSI measurement resource group includes a channel measurement resource group and / or an interference measurement resource group, and each CSI measurement resource includes a channel measurement resource and / or an interference measurement resource -; and a step of receiving a CSI report from the terminal device; wherein the CSI report is determined by the terminal device according to the CSI report configuration and the one or more CSI measurement resource groups.

[0158] In FIG. 6, the bus architecture may include any number of interconnected buses and bridges, specifically, one or more processors represented by a processor (601) and memory represented by a memory (603) are connected to each other through various circuits. The bus architecture may also connect various other circuits such as peripheral devices, voltage stabilizers, power management circuits, etc. Since this is known in the art, a detailed description is omitted here. The bus interface provides an interface. The transceiver (602) may be a plurality of components including a transmitter and a receiver and provides a unit for communicating with various other devices in a transmission medium. For different user equipment, the user interface (604) may be an interface that can connect necessary equipment externally and internally, and the connected devices include, but are not limited to, keypads, display devices, speakers, microphones, joysticks, etc.

[0159] The processor (601) manages the bus architecture and general processing, and the memory (603) can store data used when the processor (601) performs operations.

[0160] In an embodiment of the present invention, network equipment can be implemented such that different TRPs correspond to different CSI measurement resource groups by configuring CSI measurement resources corresponding to CSI reporting configurations into one or more CSI measurement resource groups. Accordingly, when reporting a CSI report, terminal equipment can effectively select one or more TRPs based on one or more CSI measurement resource groups corresponding to the CSI reporting configurations to perform CSI measurement and report a CSI report. In the case of network equipment, network equipment can effectively determine one or more TRPs based on the CSI report to perform resource scheduling.

[0161] Optionally, when a computer program is executed by a processor (601), and also when one or more CSI measurement resource groups corresponding to said CSI report configuration are transmitted to a terminal device, and said more CSI measurement resource groups are each configured by a CSI resource configuration associated with said CSI report configuration and a CSI resource configuration associated with other CSI report configurations, a step of configuring or indicating an association between said CSI report configuration and said other CSI report configurations is implemented.

[0162] Before receiving a CSI report from the terminal equipment, instruction information is transmitted to the terminal equipment, and the instruction information is used to instruct the terminal equipment to select whether to report the first CSI or the second CSI, or, the instruction information is used to instruct the CSI type to be included in the CSI report, and the CSI type includes the first CSI, the second CSI, or the first CSI and the second CSI.

[0163] The above CSI report includes at least one of CSI measurement resource information and CSI measurement resource instruction information, the above CSI measurement resource information is used to indicate N CSI measurement resources, and the above CSI measurement resource instruction information is used to indicate a CSI measurement resource corresponding to the first CSI or the second CSI, and among them, after receiving a CSI report from the terminal equipment, one or more transmission / reception points (TRPs) are determined according to at least one of the above CSI measurement resource information and CSI measurement resource instruction information, and resource scheduling is performed for the terminal equipment according to the one or more TRPs.

[0164] Preferably, an embodiment of the present invention further provides a mobile terminal comprising a processor (110), a memory (109), and a computer program that is stored in the memory (109) and can be executed on the processor (110). When the computer program is executed by the processor (110), each process of the CSI report feedback method embodiment can be implemented and the same technical effect can be obtained. To avoid repetition, a detailed description is omitted herein.

[0165] Embodiments of the present invention further provide a computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when this computer program is executed by a processor, each process of the CSI report feedback method embodiment can be implemented and the same technical effect can be obtained, and to avoid repetition, a detailed description is omitted herein. Here, the computer-readable storage medium may be a Read-Only Memory (ROM), Random Access Memory (RAM), a magnetic disk, or a CD-ROM, etc.

[0166] It should be noted that in this specification, “comprising,” “having,” or any other variation is intended for non-exclusive inclusion, and that a process, method, article, or device comprising a series of elements includes not only such elements but also other elements not explicitly listed, or elements unique to such process, method, article, or device. Unless otherwise limited, an element defined as “comprising” does not exclude the presence of other identical elements in a process, method, article, or device comprising such element.

[0167] Through the description of the above embodiments, those skilled in the art will clearly understand that while the method of the above embodiments may be implemented by combining software with a necessary general hardware platform or by hardware, in many cases, the method of combining software with a necessary general hardware platform is more preferable. Based on this understanding, the essential part of the technical solution of the present invention, the part contributing to the related technology, or all or part of this technical solution may be implemented in the form of a software product, and this computer software product may be stored on a storage medium (e.g., ROM / RAM, magnetic disk, CD-ROM) by including a plurality of instructions that enable the method according to each embodiment of the present invention to be executed by a terminal (mobile phone, computer, server, air conditioner, or network equipment, etc.).

[0168] As described above, embodiments of the present invention have been explained in conjunction with the attached drawings; however, the present invention is not limited to the specific embodiments described above, and the specific embodiments described above are merely examples and are not restrictive. Those skilled in the art can derive various aspects based on the present invention without departing from the spirit of the invention and the scope of protection according to the claims, and all such aspects fall within the scope of protection of the present invention.

Claims

Claim 1 A method for feedback of channel state information (CSI) reporting performed by terminal equipment, wherein the method comprises: a step of obtaining a CSI reporting configuration and one or more CSI measurement resource groups corresponding to the CSI reporting configuration—each CSI measurement resource group includes one or more CSI measurement resources, each CSI measurement resource group includes at least one of a channel measurement resource group and an interference measurement resource group, and each CSI measurement resource includes at least one of a channel measurement resource and an interference measurement resource—; a step of generating a CSI report according to the CSI reporting configuration and the one or more CSI measurement resource groups; and a step of reporting the CSI report. A feedback method for a channel state information (CSI) report, comprising: a CSI report comprising at least one of a first CSI and a second CSI, wherein the first CSI is a CSI obtained by one CSI measurement resource, the one CSI measurement resource belongs to one of the one or a plurality of CSI measurement resource groups, the second CSI is a CSI obtained by N CSI measurement resources, wherein N is greater than 1, and each of the N CSI measurement resources belongs to N CSI measurement resource groups; and prior to the step of reporting the CSI report, the method further comprises the step of receiving instruction information from a network equipment, wherein the instruction information is used to indicate either one of: the terminal equipment reporting the first CSI or the second CSI; and a CSI type included in the CSI report, and wherein the CSI type includes any one of the first CSI and the second CSI; and the second CSI. Claim 2 A feedback method for channel state information (CSI) reporting according to claim 1, wherein one CSI measurement resource includes one channel measurement resource, and said channel measurement resource includes a channel state information reference signal (CSI-RS) or a synchronization signal block (SSB); or, one CSI measurement resource includes one interference measurement resource, and said interference measurement resource includes a channel state information interference measurement (CSI-IM) resource; or, one CSI measurement resource includes one channel measurement resource or one interference measurement resource, and said channel measurement resource and said interference measurement resource include a part or all of the CSI-RS ports of a CSI-RS resource. Claim 3 A feedback method for channel state information (CSI) reporting according to claim 1, wherein the step of generating a CSI report according to the CSI report configuration and the one or more CSI measurement resource groups comprises: selecting N CSI measurement resources from the one or more CSI measurement resource groups, where N is an integer greater than 0 and less than or equal to M, and M is the number of groups of the more than more CSI measurement resource groups; and generating the CSI report according to the N CSI measurement resources. Claim 4 A feedback method for reporting channel state information (CSI), wherein, in claim 1, the transmission method corresponding to the second CSI is any one of non-coherent joint transmission (NCJT), single frequency network (SFN), spatial division multiplexing (SDM), frequency division multiplexing (FDM), and time division multiplexing (TDM), and wherein the transmission method corresponding to the second CSI is indicated by network equipment or agreed upon in advance by said network equipment and said terminal equipment. Claim 5 In claim 1, where the instruction information is used to indicate that the CSI type included in the CSI report is the second CSI, the CSI report includes CSI measurement resource information, the CSI measurement resource information is used to indicate the N CSI measurement resources, and the second CSI corresponds to the N CSI measurement resources; or, the CSI report includes CSI measurement resource information and CSI measurement resource instruction information, the CSI measurement resource information is used to indicate the N CSI measurement resources, the CSI measurement resource instruction information is used to indicate Q CSI measurement resources corresponding to the second CSI, the Q CSI measurement resources belong to the N CSI measurement resources, Q is an integer greater than 1 and less than or equal to N, and N is an integer greater than or equal to 2; and where the instruction information is used to indicate that the CSI type included in the CSI report is the first CSI and the second CSI, the CSI report includes CSI measurement resource information and CSI measurement resource instruction information, and the CSI measurement resource information is the It is used to indicate N CSI measurement resources, wherein the second CSI corresponds to the N CSI measurement resources, and the CSI measurement resource indication information is used to indicate one CSI measurement resource corresponding to the first CSI, wherein the one CSI measurement resource belongs to the N CSI measurement resources, or, the CSI report includes the CSI measurement resource information, the first CSI measurement resource indication information, and the second CSI measurement resource indication information, wherein the first CSI measurement resource indication information is used to indicate one CSI measurement resource corresponding to the first CSI, and the second CSI measurement resource indication information is used to indicate P CSI measurement resources corresponding to the second CSI.The above one CSI measurement resource and the above P CSI measurement resources belong to the above N CSI measurement resources, and P is an integer greater than 1 and less than or equal to N, or, the above CSI measurement report includes first CSI measurement resource information, second CSI measurement resource information, first CSI measurement resource instruction information and second CSI measurement resource instruction information, the above first CSI measurement resource information is used to indicate N1 CSI measurement resources, the above second CSI measurement resource information is used to indicate N2 CSI measurement resources, the above first CSI measurement resource instruction information is used to indicate one CSI measurement resource corresponding to the first CSI, the above second CSI measurement resource instruction information is used to indicate B CSI measurement resources corresponding to the second CSI, the above one CSI measurement resource belongs to the above N1 CSI measurement resources, the above B CSI measurement resources belong to the above N2 CSI measurement resources, the above N1 CSI measurement resources and the above N2 CSI measurement resources belong to the above N CSI measurement resources, and the The union of N1 CSI measurement resources and the N2 CSI measurement resources is the N CSI measurement resources, N1 is an integer greater than or equal to 1, N2 is an integer greater than or equal to 2, and B is an integer greater than 1 and less than or equal to N2, or, the CSI report includes first CSI measurement resource information, second CSI measurement resource information, and CSI measurement resource instruction information, wherein the first CSI measurement resource information is used to indicate one CSI measurement resource corresponding to the first CSI, the second CSI measurement resource information is used to indicate N3 CSI measurement resources, and the CSI measurement resource instruction information is used to indicate B CSI measurement resources corresponding to the second CSI, and N3 is an integer greater than 1.A feedback method for channel state information (CSI) reporting, characterized in that the above B CSI measurement resources belong to the above N3 CSI measurement resources, the union of the above one CSI measurement resource and the above N3 CSI measurement resources is the above N CSI measurement resources, and B is an integer greater than 1 and less than or equal to N3. Claim 6 In paragraph 5, the second CSI comprises L rank indicators (RIs) and P CSIs, wherein one of the P CSIs is a partial CSI among the CSIs obtained by P CSI measurement resources, and the partial CSI corresponds to one of the P CSI measurement resources, L is an integer greater than or equal to 1 and less than or equal to N, and P is an integer greater than 1 and less than or equal to N, wherein when L=1, the RI corresponding to the P CSIs is a single RI or the sum of the P RIs corresponding to the P CSIs is equal to the single RI, and when L=P, the P CSIs each correspond to a single RI, and the single CSI comprises at least one of a broadband CSI and a subband CSI, wherein the broadband CSI comprises at least one of a broadband precoding matrix indicator (PMI) and a broadband channel quality indicator (CQI), and the subband CSI comprises a subband PMI and a subband A feedback method for reporting channel state information (CSI), characterized by including at least one CQI, wherein the subband PMI includes a part of the broadband PMI and a part of K subband PMIs, and the subband CQI includes a part of the broadband CQI and a part of K subband CQIs. Claim 7 A feedback method for a channel state information (CSI) report, characterized in that, in claim 5, when the CSI measurement resource is a CSI-RS resource or a CSI-IM resource, the N CSI measurement resource information is determined by the CSI-RS resource indicator (CRI) within the CSI report. Claim 8 A method for feedback of a CSI report performed by network equipment, comprising the step of transmitting a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration to a terminal equipment—each CSI measurement resource group includes one or more CSI measurement resources, each CSI measurement resource group includes at least one of a channel measurement resource group and an interference measurement resource group, and each CSI measurement resource includes at least one of a channel measurement resource and an interference measurement resource—; and the step of receiving a CSI report from the terminal equipment; The method comprises, wherein the CSI report is determined by a terminal device according to the configuration of the CSI report and one or more CSI measurement resource groups, the CSI report comprises at least one of a first CSI and a second CSI, the first CSI is a CSI obtained by one CSI measurement resource, the one CSI measurement resource belongs to one of the one or more CSI measurement resource groups, the second CSI is a CSI obtained by N CSI measurement resources, where N is greater than 1, and each of the N CSI measurement resources belongs to N CSI measurement resource groups, and prior to the step of receiving a CSI report from the terminal device, the method further comprises the step of transmitting instruction information to the terminal device, wherein the instruction information is used to indicate either one of: the terminal device reporting the first CSI or the second CSI; and a CSI type included in the CSI report, and the CSI type is: the first CSI and the second CSI; and the second CSI; A feedback method for CSI reports characterized by including any one of the following. Claim 9 A method for feedback of a CSI report according to claim 8, wherein when transmitting a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration to a terminal device, the method further comprises the step of configuring or indicating an association between the CSI report configuration and the other CSI report configuration when the multiple CSI measurement resource groups are configured by a CSI resource configuration associated with the CSI report configuration and a CSI resource configuration associated with the other CSI report configuration. Claim 10 A method for feedback of a CSI report according to claim 8, wherein the CSI report comprises at least one of CSI measurement resource information and CSI measurement resource instruction information, wherein the CSI measurement resource information is used to indicate N CSI measurement resources and the CSI measurement resource instruction information is used to indicate a CSI measurement resource corresponding to the first CSI or the second CSI, and wherein, after the step of receiving a CSI report from the terminal equipment, the method further comprises: a step of determining one or a plurality of transmit / receive points (TRPs) according to at least one of the CSI measurement resource information and CSI measurement resource instruction information; and a step of performing resource scheduling for the terminal equipment according to the one or a plurality of TRPs. Claim 11 In a terminal device, an acquisition module configured to acquire a CSI reporting configuration and one or more CSI measurement resource groups corresponding to the CSI reporting configuration—each CSI measurement resource group includes one or more CSI measurement resources, each CSI measurement resource group includes at least one of a channel measurement resource group and an interference measurement resource group, and each CSI measurement resource includes at least one of a channel measurement resource and an interference measurement resource—; a generation module configured to generate a CSI report according to the CSI reporting configuration and the one or more CSI measurement resource groups; and a reporting module configured to report the CSI report. A terminal device comprising: a CSI report comprising at least one of a first CSI and a second CSI, wherein the first CSI is a CSI obtained by one CSI measurement resource, the one CSI measurement resource belongs to one of the one or a plurality of CSI measurement resource groups, the second CSI is a CSI obtained by N CSI measurement resources, wherein N is greater than 1, and each of the N CSI measurement resources belongs to N CSI measurement resource groups, and the acquisition module is also configured to receive instruction information from a network device, wherein the instruction information is used to indicate any one of: the terminal device reporting the first CSI or the second CSI; and the CSI type included in the CSI report, and wherein the CSI type includes any one of: the first CSI and the second CSI; and the second CSI. Claim 12 In network equipment, a transmitting module configured to transmit a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration to a terminal device, wherein each CSI measurement resource group includes one or more CSI measurement resources, each CSI measurement resource group includes at least one of a channel measurement resource group and an interference measurement resource group, and each CSI measurement resource includes at least one of a channel measurement resource and an interference measurement resource; and a receiving module configured to receive a CSI report from the terminal device; Network equipment comprising, wherein the CSI report is determined by terminal equipment according to the configuration of the CSI report and one or more CSI measurement resource groups, the CSI report includes at least one of a first CSI and a second CSI, the first CSI is a CSI obtained by one CSI measurement resource, the one CSI measurement resource belongs to one of the one or more CSI measurement resource groups, the second CSI is a CSI obtained by N CSI measurement resources, N is greater than 1, and each of the N CSI measurement resources belongs to N CSI measurement resource groups, and the transmitting module is also configured to transmit instruction information to the terminal equipment, the instruction information is used to indicate any one of: the terminal equipment reporting the first CSI or the second CSI; and a CSI type included in the CSI report, and the CSI type includes any one of: the first CSI and the second CSI; and the second CSI. Claim 13 A computer-readable storage medium characterized by having a computer program stored therein, and when the computer program is executed by a processor, implementing a step of the method according to any one of claims 1 to 7 or implementing a step of the method according to any one of claims 8 to 10. Claim 14 delete Claim 15 delete Claim 16 delete Claim 17 delete Claim 18 delete Claim 19 delete Claim 20 delete Claim 21 delete Claim 22 delete Claim 23 delete Claim 24 delete

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