Feedback method for channel status information CSI report, terminal equipment and network equipment

Abstract

To provide an efficient feedback method of a channel state information (CSI) report in a terminal device 500.SOLUTION: A channel state information (CSI) report feedback method in a terminal device 500 includes 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 comprising one or more CSI measurement resources, a channel measurement resource group and / or an interference measurement resource group, 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.SELECTED DRAWING: Figure 1

Description

Cross-reference to related applications

[0001] The present invention claims the priority of a Chinese patent application with an application number of 202010089624.0 and an invention title of "Channel State Information (CSI) Report Feedback Method, Terminal Device, and Network Device", which was filed with the Chinese Patent Office on February 12, 2020, and all the contents of this application are incorporated into the present invention by reference.

Technical Field

[0002] The present invention relates to the field of communications, and in particular, to a method for feedback of channel state information (CSI) reports, a terminal device, and a network device.

Background Art

[0003] When a network device communicates with a terminal device, it can adopt multi-TRP (Transmission Reception Point) / multi-panel technology to improve the reliability and throughput of transmission. For example, the terminal device may receive the same data from multiple TRPs to increase the reliability of transmission, or may receive different data from multiple TRPs to increase the throughput of transmission.

[0004] Generally, in the case of multi-TRP / multi-panel, the terminal device needs to measure the CSI of multiple TRPs / multiple panels and report the CSI report to the network device. Specifically, the network device can configure CSI report configuration and CSI resource configuration for the terminal device, and the terminal device can measure the CSI of multiple TRPs / multiple panels according to this CSI report configuration and CSI resource configuration and report the CSI report.

[0005] However, when network equipment schedules a Physical Downlink Shared Channel (PDSCH) using Downlink Control Information (DCI), considering ideal and non-ideal backhauls between multi-TRP / multi-panel systems, it may schedule multiple PDSCHs using multiple DCIs, or it may schedule a PDSCH using a single DCI. In cases where this differs, there is no effective implementation method when terminal equipment reports a CSI report. [Overview of the project] [Problems that the invention aims to solve]

[0006] Embodiments of the present invention provide a CSI report feedback method, terminal equipment, and network equipment to solve the problem of how terminal equipment efficiently provides CSI reports in the case of multi-TRP / multi-panel systems. [Means for solving the problem]

[0007] To solve the above technical problems, the present invention is realized as follows.

[0008] In the first aspect, the present invention provides a method for providing feedback on a Channel status information CSI report applied to terminal equipment, comprising the steps 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 including one or more CSI measurement resources, each CSI measurement resource group including a Channel measurement resource group and / or an interference measurement resource group, and each CSI measurement resource including a Channel measurement resource and / or an interference measurement resource; generating a CSI report using the CSI report configuration and the one or more CSI measurement resource groups; and reporting the CSI report.

[0009] In the second aspect, the present invention provides a CSI report feedback method applied to network equipment, comprising 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 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 interference measurement resource group, and each CSI measurement resource includes a channel measurement resource and / or interference measurement resource; and receiving a CSI report from the terminal device, wherein the CSI report is determined and obtained by the terminal device based on the CSI report configuration and the one or more CSI measurement resource groups.

[0010] In the third aspect, the present invention provides an acquisition module for acquiring a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report 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 interference measurement resource group, and each CSI measurement resource includes a channel measurement resource and / or interference measurement resource; a generation module for generating a CSI report using the CSI report configuration and the one or more CSI measurement resource groups; and a reporting module for reporting the CSI report.

[0011] In the fourth aspect, the present invention provides a network device comprising: a transmitting module that transmits 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 interference measurement resource group, and each CSI measurement resource includes a channel measurement resource and / or interference measurement resource; and a receiving module that receives a CSI report from the terminal device, wherein the CSI report is obtained by the terminal device based on the CSI report configuration and the one or more CSI measurement resource groups.

[0012] In the fifth aspect, the present invention provides a terminal device comprising a processor, memory, and a computer program stored in the memory and executable by the processor, wherein when the computer program is executed by the processor, the terminal device realizes the steps of the method described in the first aspect.

[0013] In the sixth aspect, the present invention provides a network device comprising a processor, memory, and a computer program stored in the memory and executable by the processor, wherein when the computer program is executed by the processor, the steps of the method described in the second aspect are realized.

[0014] In the seventh aspect, a computer-readable storage medium is provided that stores a computer program, and when the computer program is executed by a processor, it realizes the steps of the method described in the first aspect.

[0015] In the eighth aspect, a computer-readable storage medium is provided that stores a computer program, and when the computer program is executed by a processor, the steps of the method described in the second aspect are realized. [Effects of the Invention]

[0016] In embodiments of the present invention, network equipment can arrange CSI measurement resources corresponding to CSI report configurations into one or more CSI measurement resource groups, thereby enabling different TRPs to correspond to different CSI measurement resource groups. In this way, when terminal equipment reports a CSI report, it can effectively select one or more TRPs to perform CSI measurements based on the CSI report configuration and the corresponding one or more CSI measurement resource groups, and then report the CSI report. For network equipment, it can effectively determine one or more TRPs based on the CSI report and perform resource scheduling. [Brief explanation of the drawing]

[0017] [Figure 1] This is a flowchart of a feedback method for a channel status information CSI report according to one embodiment of the present invention. [Figure 2]This is a flowchart of a CSI report feedback method according to one embodiment of the present invention. [Figure 3] This is a schematic diagram of the configuration of a terminal device according to one embodiment of the present invention. [Figure 4] This is a schematic diagram of the configuration of a network device according to one embodiment of the present invention. [Figure 5] This is a schematic diagram of the configuration of a terminal device according to one embodiment of the present invention. [Figure 6] This is a schematic diagram of the configuration of a network device according to one embodiment of the present invention. [Modes for carrying out the invention]

[0018] In the following, the technical solutions in embodiments of the present invention will be clearly and completely described with reference to the drawings of the embodiments. Naturally, the embodiments described are only a part of the embodiments of the present invention, not all of them. All other embodiments that a person skilled in the art could obtain based on the embodiments of the present invention without requiring any creative effort are all within the scope of the protection of the present invention.

[0019] The technical solutions of the present invention can be used in 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), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, 5G systems, or New Radio (NR) systems.

[0020] The terminal device may be understood as a user equipment (UE), and may also be referred to as a mobile terminal, a mobile user equipment, etc. It can communicate with one or more core networks via a radio access network (e.g., Radio Access Network, RAN). The terminal device may be a mobile terminal such as a mobile phone (or also referred to as a cellular phone) and a computer equipped with a mobile terminal. For example, it may be a portable, compact, handheld, computer-integrated or vehicle-mounted mobile device, or may also be a flying device such as a drone or an aircraft. They perform language and / or data exchanges with the radio access network.

[0021] The network device may be understood as a core network or may also be understood as a base station or a TRP. Among them, the base station may be a base transceiver station (BTS) in GSM or CDMA, may be a NodeB in WCDMA, may be an evolved Node B (eNB or e-NodeB) and a 5G base station (gNB) or a TRP in LTE, and may also be a network-side device in a successor evolved communication system. In the present invention, although not limited, for the convenience of explanation, the following embodiments will be described by taking the gNB as an example.

[0022] The embodiments of the present invention can be used when the network device communicates with the terminal device based on the multi-TRP (Transmission Reception Point) / multi-panel technology. Hereinafter, the multi-TRP will be described as an example.

[0023] Hereinafter, while referring to the drawings, the technical solutions according to each embodiment of the present invention will be described in detail.

[0024] Figure 1 is a flowchart of a CSI report feedback method according to one embodiment of the present invention, which can be performed by an electronic device such as a terminal device. In other words, the method can be performed by software or hardware implemented in the terminal device. As shown in Figure 1, the method may include the following steps S102, S104, and S106.

[0025] In S102, a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration are obtained. 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.

[0026] In S102, before performing resource scheduling for terminal devices based on multi-TRP technology, the network device can configure multiple TRP CSI report configurations and one or more CSI measurement resource groups corresponding to these CSI report configurations (CSI report setting / CSI-ReportConfig) for the terminal devices. This allows the terminal devices to measure the CSI of multiple TRPs based on the CSI report configurations and one or more CSI measurement resource groups, and report a CSI report to the network device.

[0027] Network devices, upon deployment, obtain one or more CSI measurement resource groups corresponding to the CSI report deployment, which can then be transmitted to terminal devices via upper-layer signaling or physical-layer signaling. At this point, the terminal devices can obtain the CSI report deployment and one or more CSI measurement resource groups from the network devices. Here, 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.

[0028] In embodiments of the present invention, one or more CSI measurement resource groups can 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. Here, 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).

[0029] Selectively, for the above multiple 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 embodiments of the present invention, the correspondence between multiple CSI measurement resource groups and multiple TRPs (i.e., which TRP a given CSI measurement resource group belongs to) is determined by a network device, and the network device may notify terminal devices by upper-layer signaling (e.g., RRC signaling, DCI, etc.), or it may be a default method, or it may not notify terminal devices, i.e., it may be transparent to terminal devices. For example, a total of M (where M is an integer greater than 1) CSI measurement resource groups each correspond to M TRPs, and the network device can either assign the quantity of CSI measurement resources within each CSI measurement resource group or assign the CSI resource IDs within each CSI measurement resource group by upper-layer signaling.

[0030] In embodiments of the present invention, the above-mentioned CSI measurement resource can be divided into at least the following three situations.

[0031] In the first type of situation, one CSI measurement resource may specifically be one channel measurement resource, and this channel measurement resource may specifically be a CSI-RS resource or a synchronization signal block (SSB) resource.

[0032] That is, the one or more CSI measurement resource groups described above may specifically be one or more channel measurement resource groups, and these 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 contain one or more CSI-RS resources or SSB resource groups, and different CSI-RS resource groups or different SSB resource groups may have different QCLs and correspond to different TRPs. Each CSI-RS resource or SSB resource in each CSI-RS resource group or SSB resource group may have the same or different QCLs.

[0033] In the second type of situation, one CSI measurement resource may specifically be one interference measurement resource, and this interference measurement resource may specifically be a CSI-IM resource.

[0034] That is, the one or more CSI measurement resource groups described above may specifically be one or more interference measurement resource groups, and these one or more interference measurement resource groups may specifically be one or more CSI-IM resource groups, each CSI-IM resource group may contain one or more CSI-IM resources, and different CSI-IM resource groups have different QCLs and correspond to different TRPs.

[0035] In the third type of situation, the one CSI measurement resource may be one channel measurement resource or one interference measurement resource. If the one CSI measurement resource is one channel measurement resource, this channel measurement resource may specifically be some or all of the CSI-RS ports in one CSI-RS resource. If the one CSI measurement resource is one interference measurement resource, this interference measurement resource may specifically be some or all of the CSI-RS ports in one CSI-RS resource.

[0036] 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 these 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.

[0037] In embodiments of the present invention, when there are multiple CSI measurement resource groups, these multiple CSI measurement resource groups can be configured using one or more CSI resource settings (CSI resource setting / CSI-ResourceConfig), and specifically, these can be divided into the following two methods.

[0038] In the first type of method, multiple CSI measurement resource groups are arranged by the CSI resource arrangement associated with the CSI report arrangement described above. In other words, when a network device arranges a CSI resource arrangement for a terminal device, this CSI resource arrangement may include the multiple CSI measurement resource groups described above.

[0039] In the Type 2 method, multiple CSI measurement resource groups are each arranged by CSI resource arrangements associated with CSI report arrangements and CSI resource arrangements associated with other CSI report arrangements.

[0040] Here, there is a relationship between the above CSI report configuration and other CSI report configurations, and this relationship may be configured or indicated by network equipment, for example, by network equipment via RRC signaling, MAC CE signaling, or DCI.

[0041] In the second type of system, network equipment may configure one CSI report configuration for each TRP, each CSI report configuration may be associated with one CSI resource configuration, and the relationships between at least two CSI report configurations may be configured or indicated, that is, one CSI report configuration is associated with one or more other CSI report configurations. In this way, at least two CSI resource configurations can be associated by the relationships between at least two CSI report configurations, thereby enabling multiple CSI measurement resource groups corresponding to a CSI report configuration to be configured by the CSI resource configuration associated with the CSI report configuration and the CSI resource configuration associated with other CSI report configurations.

[0042] It should be explained that in the first type of method described above, one CSI report configuration may be configured as a CSI report for multiple TRPs, and in the second type of method described above, one CSI report configuration may be configured as a CSI report for one TRP.

[0043] In S104, a CSI report is generated using the CSI report configuration and the one or more CSI measurement resource groups.

[0044] In S104, when generating a CSI report, the terminal device can select N CSI measurement resources from one or more CSI measurement resource groups and generate a CSI report using the selected N CSI measurement resources. Here, N is an integer greater than 0 and less than or equal to M, and M is the number of the one or more CSI measurement resource groups.

[0045] In embodiments of the present invention, the CSI report generated by the terminal device may include at least one of a first CSI and a second CSI, where the first CSI may be understood as a CSI obtained from one CSI measurement resource, and this one CSI measurement resource belongs to one of the one or more CSI measurement resource groups. In other words, the terminal device selects one CSI measurement resource group from the one or more CSI measurement resource groups, and selects one CSI measurement resource from this one CSI resource group (i.e., N=1), and calculates the first CSI based on this one CSI measurement resource.

[0046] What needs to be explained is that when a terminal device selects one CSI measurement resource from one CSI measurement resource group, if the CSI measurement resource group contains one CSI measurement resource, this one CSI measurement resource may be considered the selected CSI measurement resource. If the CSI measurement resource group contains multiple CSI measurement resources, the terminal device may select one CSI measurement resource with the optimal signal quality from among the multiple CSI measurement resources. The first CSI corresponds to a CSI that corresponds to a transmission method that transmits data to the terminal device using only one TRP, and may be, for example, single TRP transmission or dynamic point selection (DPS).

[0047] The second CSI may be understood as the CSI obtained from the N CSI measurement resources when N is greater than 1. Selectively, these N CSI measurement resources may belong to the multiple CSI measurement resource groups, that is, when the terminal device selects N CSI measurement resources, it can select one or more CSI measurement resources from each CSI measurement resource group, and finally select a total of N CSI measurement resources. Alternatively, these N CSI measurement resource groups may each belong to one of the N CSI measurement resource groups among the multiple CSI measurement resource groups, that is, when the terminal device selects N CSI measurement resources, it selects one CSI measurement resource from each of the N CSI measurement resource groups in the multiple CSI measurement resource groups.

[0048] The second CSI corresponds to CSI when data is transmitted to terminal equipment by multiple TRPs, and the corresponding transmission method may be any one of the following: Non-Coherent Joint Transmission (NCJT), Single Frequency Network (SFN), Space Division Multiplexing (SDM), Frequency Division Multiplexing (FDM), or Time Division Multiplexing (TDM).

[0049] Here, the transmission method for the second CSI may be instructed by the network equipment or predetermined by the network equipment and terminal equipment. For example, the network equipment may instruct the terminal equipment on the transmission method it is currently using (this may be done through upper-layer signaling, for example, by including it in the CSI report configuration), or the network equipment may define the transmission method with the terminal equipment in a protocol before the terminal equipment reports the CSI report.

[0050] In embodiments of the present invention, the first CSI may be a broadband CSI or a subband CSI, and this subband CSI includes K subband CSIs, and the K subband CSIs include a broadband CSI portion and K subband CSI portions, where K is an integer of 1 or more. Similarly, the second CSI may be a broadband CSI or a subband CSI, and this subband CSI includes K subband CSIs, and the K subband CSIs include a broadband CSI portion and K subband CSI portions, where K is an integer of 1 or more.

[0051] It should be explained that network equipment may provide instructions to terminal equipment to allow terminal equipment to easily decide whether to report a first CSI or a second CSI. Specifically, terminal equipment may receive instruction information from network equipment before sending a CSI report to network equipment (or when network equipment sends one or more CSI measurement resource groups corresponding to the CSI report configuration to terminal equipment), and this instruction information may be intended to instruct terminal equipment to choose whether to report a first CSI or a second CSI, i.e., terminal equipment can choose whether to report a first CSI or a second CSI, or this instruction information may be intended to indicate the types of CSI to be included in the CSI report, and the types of CSI may include any one of three types: first CSI, second CSI, or first and second CSI, i.e., network equipment may instruct terminal equipment to report a first CSI, a second CSI, or first and second CSI, or terminal equipment can choose which types of CSI to report.

[0052] The above instruction information may be optionally included in the higher-layer signaling or physical-layer signaling of network equipment, such as RRC signaling (e.g., included in CSI report placement), MAC CE, or DCI.

[0053] The following provides a detailed explanation of the contents of the CSI report generated by the terminal device when the instruction information is intended to provide instructions for different purposes.

[0054] In the first type of implementation, if the instruction information is intended to instruct the terminal device to select whether to report a first CSI or a second CSI, the CSI report may include CSI measurement resource information and CSI measurement resource instruction information.

[0055] The CSI measurement resource information is used to indicate the N CSI measurement resources selected by the terminal device when calculating the CSI, where N is an integer of 2 or more. In embodiments 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 this CSI measurement resource or CSI measurement resource number is used to determine the CSI measurement resource group number information and / or CSI measurement resource number information within the CSI measurement resource group.

[0056] The CSI measurement resource group number information may be used to determine the group number of a CSI measurement resource group, and the CSI measurement resource number information within a CSI measurement resource group may be used to determine a specific CSI measurement resource within that CSI measurement resource group (assuming that the CSI measurement resource group contains multiple CSI measurement resources).

[0057] Selectively, when one CSI measurement resource is one CSI-RS resource or one CSI-IM resource, the N CSI measurement resource information may be determined by the CSI-RS resource group to which the CSI-RS Resource Indicator (CRI) in the CSI report belongs. Here, the CSI-RS resource group / CSI-IM resource group may be determined by the CSI-RS resource group / CSI-IM resource group to which the CRI is located.

[0058] The above CSI measurement resource group instruction information may be for instructing P CSI measurement resources corresponding to the first or second CSI. Here, P is an integer between 1 and N, and the P CSI measurement resources belong to the above N CSI measurement resources. Optionally, when N=2, the CSI measurement resource instruction information may be a bitmap.

[0059] If P is 1, the CSI included in the CSI report is the first CSI; if P is greater than 1, the CSI included in the CSI report is the second CSI.

[0060] As an example, if the CSI measurement resource information is CRI, the CSI measurement resource instruction information is a bitmap, and N=2, then the terminal device can report two CRIs and a bitmap. The two CRIs are for instructing two CSI measurement resources, and the bitmap is for instructing 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, with the k-th bit corresponding to the k-th subband. If the k-th bit is "0", it means that the CSI of the k-th subband corresponds to either the first or second CRI (i.e., the first CSI) by default. If the k-th bit is "1", it means that the CSI of the k-th subband corresponds to both the first and second CRIs (i.e., the second CSI).

[0061] In the second type of implementation, if the instruction information is intended to indicate that the CSI type included in the CSI report is the first CSI, the CSI report may include CSI measurement resource information, which is intended to indicate one CSI measurement resource, and the first CSI corresponds to this CSI measurement resource. In this case, it means that the CSI in the broadband or all subbands corresponds to only one CSI measurement resource group.

[0062] Alternatively, the CSI report may include CSI measurement resource information and CSI measurement resource instruction information. For CSI measurement resource information, refer to the explanation of N CSI measurement resource information in the first implementation described above; it will not be repeated here. The CSI measurement resource information is for instructing N CSI measurement resources, and the CSI measurement resource instruction information is for instructing 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.

[0063] As an example, if the CSI measurement resource information is CRI and the CSI measurement resource instruction information is a bitmap, and N=2, the terminal device reports two CRIs (N=2) and a bitmap. The CRIs are used to indicate two CSI measurement resources, and the bitmap indicates which CRI (i.e., TRP) the first CSI (broadband (1 bit) or subband (K bits)) corresponds to. If there are K subbands, a K-bit bitmap is used, with the k-th bit corresponding 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.

[0064] In the third type of implementation, if the instruction information is for indicating 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 for indicating N CSI measurement resources, and the second CSI corresponds to these N CSI measurement resources, where N is an integer greater than 1.

[0065] Alternatively, the CSI report may include CSI measurement resource information and CSI measurement resource instruction information. Here, the CSI measurement resource information is for instructing N CSI measurement resources, where N is an integer greater than or equal to 2. The CSI measurement resource instruction information is for instructing 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.

[0066] As an example, if the CSI measurement resource information is CRI and the CSI measurement resource instruction information is a bitmap, with N=4 and Q=2, the terminal device reports four CRIs (N=4) and a bitmap. The CRIs are used to indicate four CSI measurement resources, and the bitmap indicates which Q CRIs (i.e., TRPs) the second CSI (broadband or each subband) corresponds to. If there are K subbands, a 4-bit bitmap is used for each subband, with the nth bit corresponding to the nth CRI out of N CRIs. If the nth bit is "0", it means that the CSI of this subband does not correspond to the nth CRI, and if the nth bit is "1", it means that the CSI of this subband corresponds to the nth CRI. Because Q=2, in this subband, the 4-bit bitmap can only have 2 bits that are "1".

[0067] When the above-mentioned multiple CSI measurement resource groups are each arranged by CSI resource arrangements related to CSI report arrangements and CSI resource arrangements related to other CSI report arrangements, it should be explained that a CSI report may contain N-1 CSI measurement resource information, and that these N-1 CSI measurement resource information correspond to CSI resource arrangements related to other CSI report arrangements.

[0068] In the fourth type of implementation, when the instruction information is intended to indicate that the types of CSIs included in the CSI report are the first CSI and the second CSI, the contents of the CSI report can be divided into at least the following four types of situations.

[0069] In the first type of situation, the CSI report includes CSI measurement resource information and CSI measurement resource reference information, the CSI measurement resource information is for pointing to N CSI measurement resources, and the second CSI corresponds to these N CSI measurement resources, where N is an integer greater than 1, and the CSI measurement resource reference information is for pointing to one CSI measurement resource corresponding to the first CSI, and this one CSI measurement resource belongs to the above N CSI measurement resources.

[0070] As an example, if the CSI measurement resource information is CRI, the CSI measurement resource instruction information is a bitmap, and N is 2, the terminal device reports two CRIs, the second CSI corresponds to these two CRIs, and the first CSI corresponds to one of them. The terminal device also reports a bitmap, which indicates which CRI the first CSI (broadband (1 bit) or subband (K bits)) corresponds to. Selectively, the first CSI may by default correspond to either the first or second CRI.

[0071] In a Type 1 situation, it should be explained that the corresponding TRP of the first CSI is one of the TRPs of the corresponding TRPs of the second CSI.

[0072] In the second type of situation, the CSI report includes CSI measurement resource information, first CSI measurement resource indication information, and second CSI measurement resource indication information, where the CSI measurement resource information is for indicating N CSI measurement resources, where N is an integer greater than 1, the first CSI measurement resource indication information is for indicating one CSI measurement resource corresponding to the first CSI, and this one CSI measurement resource belongs to the N CSI measurement resources, and the second CSI measurement resource indication information is for indicating 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 the N CSI measurement resources.

[0073] As an example, if the CSI measurement resource information is CRI, the CSI measurement resource instruction information is a bitmap, and N is 2, the terminal device reports two CRIs, the first CSI corresponds to one of them, the second CSI corresponds to both of these CRIs, and at the same time the terminal device also reports a bitmap, which indicates which CRI the first CSI (broadband or subband CSI) corresponds to.

[0074] In the third type of situation, the CSI report includes first CSI measurement resource information, second CSI measurement resource information, first CSI measurement resource indication information, and second CSI measurement resource indication information. The first CSI measurement resource information is for indicating N1 CSI measurement resources, and the second CSI measurement resource information is for indicating N2 CSI measurement resources, and the N1 CSI measurement resources and N2 CSI measurement resources belong to the above N CSI measurement resources, where 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.

[0075] The first CSI measurement resource instruction information is for indicating one CSI measurement resource corresponding to the first CSI, and this one CSI measurement resource belongs to N1 CSI measurement resources. The second CSI measurement resource instruction information is for indicating 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.

[0076] What needs to be explained is that the combined set of N1 specified CSI measurement resources and N2 specified CSI measurement resources is N CSI measurement resources, meaning that the N1 specified CSI measurement resources and N2 specified CSI measurement resources may contain the same CSI measurement resources, in which case the sum of N1 and N2 is greater than N, and if the N1 specified CSI measurement resources and N2 specified CSI measurement resources are different CSI resource measurement resources, then the sum of N1 and N2 is N.

[0077] In the fourth type of situation, the CSI report includes first CSI measurement resource information, second CSI measurement resource information, and CSI measurement resource indication information, where the first CSI measurement resource information indicates one CSI measurement resource corresponding to the first CSI, and this one CSI measurement resource belongs to the above N CSI measurement resources, where N is an integer greater than 1.

[0078] The second CSI measurement resource information is for indicating N3 CSI measurement resources, and these N3 CSI measurement resources belong to the above N CSI measurement resources. The CSI measurement resource instruction information is for indicating 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 these B CSI measurement resources belong to the N3 CSI measurement resources.

[0079] What needs to be explained is that the combined set of one designated CSI measurement resource and N3 CSI measurement resources is N CSI measurement resources, that is, one designated CSI measurement resource and N3 CSI measurement resources may contain the same CSI resource measurement resource (one designated CSI measurement resource may belong to N3 CSI measurement resources), in which case N3 is N, and if one designated CSI measurement resource is different from N3 CSI measurement resources, then N3 is N-1.

[0080] In the above-mentioned scenarios 3 and 4, the terminal device reports CSI measurement resource information corresponding to the first CSI and CSI measurement resource information corresponding to the second CSI, respectively.

[0081] Regarding the four implementation modes described above, the terminal device can select one of these implementation modes according to the specific instructions in the instruction information and generate the corresponding CSI report.

[0082] In embodiments of the present invention, when a terminal device reports a second CSI, the second CSI may include L rank indicators (RIs) and P CSIs, where L is an integer between 1 and N, and P is an integer greater than 1 and less than or equal to N. Here, if the second CSI includes one RI (i.e., L is 1), it means that there is one RI corresponding to the P CSIs, or that the sum of the P RIs corresponding to the P CSIs is this one RI. If the second CSI includes P RIs (i.e., L is P), it means that each of the P CSIs corresponds to one RI.

[0083] Of the P CSIs, for each CSI, one CSI is specifically a portion of the CSIs obtained from the P CSI measurement resources, and this portion of CSI may correspond to one of the P CSI measurement resources.

[0084] In embodiments of the present invention, one CSI may include at least one of a broadband CSI and a subband CSI, where the broadband CSI may include at least one of a broadband precoding matrix indicator (PMI) and a broadband channel quality indicator (CQI). The subband CSI may include at least one of a subband PMI and a subband CQI, where the subband PMI includes a broadband PMI portion and K subband PMI portions, and the subband CQI includes a broadband CQI portion and K subband CQI portions.

[0085] Optionally, in embodiments of the present invention, a terminal device may report one CSI report to each TRP, in which case the CSI report may include one CSI measurement resource information or specific CSI measurement resource information, or may not include any CSI measurement resource information. Here, the specific CSI measurement resource information may be used to indicate that the CSI report does not include a target CSI, and this target CSI may be a CSI corresponding to the one CSI measurement resource information (corresponding to the case where one CSI measurement resource information is reported) or a CSI of a CSI measurement resource group corresponding to a CSI resource arrangement related to the CSI report arrangement (corresponding to the case where CSI measurement resource information is not reported).

[0086] Furthermore, if the CSI report contains one CSI measurement resource information, or if it does not contain CSI measurement resource indication information, the CSI report may further indicate whether or not the target CSI is included. Here, the terminal device may indicate whether or not the target CSI is included by using a bitmap.

[0087] Taking CSI measurement resource information as CRI as an example, if there are K subbands, a K-bit bitmap is used, with the k-th bit corresponding 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 one CRI) or a CSI corresponding to a CSI-RS resource associated with this CSI report configuration (when not reporting a CRI) (i.e., the CSI does not correspond to this TRP, and the terminal equipment does not recommend scheduling 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 one CRI) or a CSI corresponding to a CSI-RS resource associated with this CSI report configuration (when not reporting a CRI) (i.e., it could be a second CSI corresponding to this TRP or a first CSI corresponding to this TRP).

[0088] In S104, the terminal device can execute S106 after generating the CSI report.

[0089] In S106, submit the CSI report.

[0090] In S106, terminal devices can report CSI reports according to their placement in the CSI report configuration.

[0091] For example, in a CSI reporting configuration, if terminal equipment is configured to report CSI reports periodically, the terminal equipment can generate periodic CSI reports (Periodic CSI, P-CSI) and transmit them via the Physical Uplink Control Channel (PUCCH). In a CSI reporting configuration, if terminal equipment is configured to report CSI reports semi-persistently, the terminal equipment can generate semi-persistent CSI reports (Semi-persistent CSI, SP-CSI) and transmit them via PUCCH or the Physical Uplink Shared Channel (PUSCH). In a CSI reporting configuration, if terminal equipment is configured to report CSI reports aperiodicly, the terminal equipment can generate aperiodic CSI reports (Aperiodic CSI, AP-CSI) and transmit them via PUSCH.

[0092] In embodiments of the present invention, network equipment can arrange CSI measurement resources corresponding to CSI report configurations into one or more CSI measurement resource groups, thereby enabling different TRPs to correspond to different CSI measurement resource groups. In this way, when terminal equipment reports a CSI report, it can effectively select one or more TRPs to perform CSI measurements based on the CSI report configuration and the corresponding one or more CSI measurement resource groups, and then report the CSI report. For network equipment, it can effectively determine one or more TRPs based on the CSI report and perform resource scheduling.

[0093] Figure 2 is a flowchart of a CSI report feedback method according to one embodiment of the present invention. This method can be performed by electronic equipment such as network equipment. In other words, the method can be performed by software or hardware implemented in network equipment. As shown in Figure 2, this method may include the following steps S202 and S204.

[0094] In S202, a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration are transmitted to the 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.

[0095] In S202, before performing resource scheduling for terminal devices based on multi-TRP technology, network devices can deploy and transmit to terminal devices CSI report deployments for multiple TRPs and one or more CSI measurement resource groups corresponding to these CSI report deployments. Here, 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. Selectively, different CSI measurement resource groups may have different QCLs, and different CSI measurement resource groups may correspond to different TRPs.

[0096] In embodiments 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; 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 interference measurement resource include some or all of the CSI-RS ports in one CSI-RS resource. Specifically, refer to the correspondence described in the embodiment shown in Figure 1, which will not be repeated here.

[0097] If there are multiple CSI measurement resource groups, the multiple CSI measurement resource groups may be arranged by one CSI resource arrangement associated with the CSI report arrangement, or the multiple CSI measurement resource groups may each be arranged by a CSI resource arrangement associated with one CSI report arrangement and a CSI resource arrangement associated with another CSI report arrangement, where there is a relationship between the CSI report arrangement and the other CSI report arrangement, and this relationship may be pre-arranged or instructed by the network equipment.

[0098] Specifically, when a CSI report configuration corresponds to multiple CSI measurement resource groups, the network device configures or indicates the relationships 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 device. Here, the network device can configure or indicate these relationships using RRC signaling, MAC CE signaling, DCI, etc.

[0099] In the 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 can generate a CSI report using the CSI report configuration and the one or more CSI measurement resource groups corresponding to it. For specific implementation details, please refer to the correspondence shown in the embodiment in Figure 1, which will not be described again here.

[0100] The CSI report generated by the terminal device may include at least one of a first CSI and a second CSI, where the first CSI is a CSI obtained from 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 from N CSI measurement resources, where 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. After the terminal device generates the CSI report, the network device may instruct the terminal device to report the CSI to the CSI report in order to facilitate reporting of the CSI report to the terminal device.

[0101] Specifically, before receiving a CSI report from a terminal device, the network device may send instructional information to the terminal device, which may instruct the terminal device to choose whether to report a first CSI or a second CSI, or which may instruct the type of CSI to be included in the CSI report, which may include a first CSI, a second CSI, or both a first and a second CSI.

[0102] In this way, terminal devices can generate corresponding CSI reports in response to instructions from network devices. Specifically, refer to the corresponding details in the embodiment shown in Figure 1, and will not be explained again here.

[0103] In S204, the terminal device receives a CSI report, which is determined by the terminal device based on the CSI report configuration and the one or more CSI measurement resource groups.

[0104] In S204, after the terminal device generates a CSI report, it can feed the CSI report back to the network device. Here, when the network device transmits the above instruction information to the terminal device, the CSI report received by the network device may include at least one of the following: CSI measurement resource information and CSI measurement resource instruction information. The CSI measurement resource information may be for instructing N CSI measurement resources, and the CSI measurement resource instruction information may be for instructing a CSI measurement resource corresponding to the first CSI or the second CSI. Furthermore, the CSI measurement resource information instructed by the CSI measurement resource instruction information belongs to the above N CSI measurement resources. Specifically, refer to the contents of the embodiment shown in Figure 1, which will not be repeated here.

[0105] Selectively, when a terminal device feeds back one CSI report for each TRP, the CSI report received by the network device may include one CSI measurement resource information or specific CSI measurement resource information, or it may not include any CSI measurement resource information. Specific CSI measurement resource information is used to indicate that the CSI report does not include a target CSI. If the CSI report includes one CSI measurement resource information or does not include CSI measurement resource indication information, the CSI report further indicates whether or not to include a target CSI. Here, the target CSI includes the CSI corresponding to this one CSI measurement resource information or the CSI of the CSI measurement resource group corresponding to the CSI resource arrangement related to the CSI report arrangement. Specifically, refer to the embodiment shown in Figure 1, which will not be repeated here.

[0106] After receiving a CSI report, the network device can determine one or more TRPs based on the CSI report and perform resource scheduling based on one or more TRPs. Here, if the CSI report includes at least one of the N CSI measurement resource information and CSI measurement resource instruction information, the network device can 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, it can perform resource scheduling for terminal devices based on this one or more TRPs. Here, when the network device performs resource scheduling for terminal devices based on one TRP, the transmission method is DPS, and when performing resource scheduling based on multiple TRPs, the transmission method may be NCJT, SFN, SDM, FDM, or TDM.

[0107] In embodiments of the present invention, network equipment can arrange CSI measurement resources corresponding to CSI report configurations into one or more CSI measurement resource groups, thereby enabling different TRPs to correspond to different CSI measurement resource groups. In this way, when terminal equipment reports a CSI report, it can effectively select one or more TRPs to perform CSI measurements based on the CSI report configuration and the corresponding one or more CSI measurement resource groups, and then report the CSI report. For network equipment, it can effectively determine one or more TRPs based on the CSI report and perform resource scheduling.

[0108] The above describes specific embodiments of this specification. Other embodiments are within the scope of the appended claims. Desired results may be achieved by performing the operations or steps described in the claims in a different order than those described in the embodiments. Notwithstanding that the processes described in the drawings do not necessarily require the shown specific order or sequence to achieve the desired results. In some embodiments, multitasking or parallel processing is possible or beneficial.

[0109] Figure 3 is a schematic diagram of the configuration of a terminal device according to one embodiment of the present invention, the terminal device comprising: an acquisition module 31 that acquires a CSI report arrangement and one or more CSI measurement resource groups corresponding to the CSI report arrangement, each CSI measurement resource group including one or more CSI measurement resources, each CSI measurement resource group including a channel measurement resource group and / or interference measurement resource group, each CSI measurement resource including a channel measurement resource and / or interference measurement resource; a generation module 32 that generates a CSI report using the CSI report arrangement and the one or more CSI measurement resource groups; and a reporting module 33 that reports the CSI report.

[0110] Selectively, one CSI measurement resource includes one channel measurement resource, the 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, the 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, the channel measurement resource and the interference measurement resource include some or all of the CSI-RS ports in one CSI-RS resource.

[0111] Selectively, the multiple CSI measurement resource groups may be arranged by one CSI resource arrangement associated with the CSI report arrangement, or each of the multiple CSI measurement resource groups may be arranged by a CSI resource arrangement associated with the CSI report arrangement and a CSI resource arrangement associated with another CSI report arrangement, and the relationships between the CSI report arrangement and the other CSI report arrangements may be arranged or indicated by network equipment.

[0112] Selectively, the step of the generation module 32 generating a CSI report using the CSI report arrangement and the one or more CSI measurement resources includes the step of 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 multiple CSI measurement resource groups; and the step of generating the CSI report using the N CSI measurement resources.

[0113] Selectively, the CSI report includes at least one of a first CSI and a second CSI, wherein the first CSI is a CSI obtained from 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 from N CSI measurement resources, where N is greater than 1, and the N CSI measurement resources belong to the multiple CSI measurement resource groups, or the N CSI measurement resources each belong to one of the N CSI measurement resource groups.

[0114] Selectively, the transmission method corresponding to the second CSI is one of the following: non-coherent joint coordinating transmission (NCJT), single-frequency network (SFN), spatial division multiplexing (SDM), frequency division multiplexing (FDM), or time division multiplexing (TDM), and the transmission method corresponding to the second CSI is indicated by the network equipment or predetermined by the network equipment and the terminal equipment.

[0115] Selectively, the acquisition module 31 receives instruction information from a network device before the reporting module 33 reports the CSI report, and the instruction information is for instructing the terminal device to choose whether to report the first CSI or the second CSI, or the instruction information is for instructing the type of CSI to be included in the CSI report, the type of CSI including the first CSI, the second CSI, or the first CSI and the second CSI.

[0116] If the instruction information is to instruct the terminal device 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 for indicating the N CSI measurement resources, the CSI measurement resource instruction information is for indicating 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, the CSI report includes the first CSI when P is an integer between 1 and N, N is an integer between 2 and 1, and P is 1, and the CSI report includes the second CSI when P is greater than 1.

[0117] Selectively, if the instruction information is for indicating that the type of CSI included in the CSI report is the first CSI, the CSI report includes CSI measurement resource information, the CSI measurement resource information is for indicating one CSI measurement resource, and the first CSI corresponds to the one CSI measurement resource, or the CSI report includes CSI measurement resource information and CSI measurement resource instruction information, the CSI measurement resource information is for indicating the N CSI measurement resources, the CSI measurement resource instruction information is for indicating one CSI measurement resource corresponding to the first CSI, and the one CSI measurement resource belongs to the N CSI measurement resources.

[0118] Selectively, if the instruction information is for indicating that the type of CSI included in the CSI report is the second CSI, the CSI report includes CSI measurement resource information, the CSI measurement resource information is for indicating 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 for indicating the N CSI measurement resources, the CSI measurement resource instruction information is for indicating 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.

[0119] Selectively, if the instruction information is for indicating that the CSI types included in the CSI report are the first CSI and the second CSI, the CSI report includes CSI measurement resource information and CSI measurement resource instruction information, the CSI measurement resource information is for indicating the N CSI measurement resources, and the second CSI corresponds to the N CSI measurement resources, the CSI measurement resource instruction information is for indicating one CSI measurement resource corresponding to the first CSI, and 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 instruction information and the second CSI measurement resource instruction information, the first CSI measurement resource instruction information is for indicating one CSI measurement resource corresponding to the first CSI, the second CSI measurement resource instruction information is for indicating 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 It belongs to a set of CSI resources, where P is an integer greater than 1 and less than or equal to N, or 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, where the first CSI measurement resource information is for instructing N1 CSI measurement resources, the second CSI measurement resource information is for instructing N2 CSI measurement resources, the first CSI measurement resource instruction information is for instructing one CSI measurement resource corresponding to the first CSI, the second CSI measurement resource instruction information is for instructing 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, and the combined set of the 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, 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, the first CSI measurement resource information is for instructing one CSI measurement resource corresponding to the first CSI, the second CSI measurement resource information is for instructing N3 CSI measurement resources, the CSI measurement resource instruction information is for instructing 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 combined set 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.

[0120] Selectively, the second CSI includes L rank indicator RIs and P CSIs, one of the P CSIs is a subset of the CSIs obtained from the P CSI measurement resources, the subset of CSIs corresponds to one of the P CSI measurement resources, L is an integer between 1 and N, P is an integer greater than 1 and N, and when L is 1, the RI corresponding to the P CSIs is one RI, or the sum of the P RIs corresponding to the P CSIs is the one RI, and when L is P, the previous Each of the P CSIs corresponds to one RI, and the one CSI is a broadband CSI including at least one of the broadband precoding matrix index PMI and the broadband channel quality index CQI, and a subband CSI including at least one of the subband PMI and subband CQI, wherein the subband PMI includes a broadband PMI portion and K subband PMI portions, and the subband CQI includes at least one of a subband CSI including a broadband CQI portion and K subband CQI portions.

[0121] Selectively, the CSI report may include one CSI measurement resource information or specific CSI measurement resource information, or may not include any CSI measurement resource information, the specific CSI measurement resource information being used to indicate that the CSI report does not include a target CSI, and if the CSI report includes one CSI measurement resource information or does not include CSI measurement resource indication information, the CSI report may further indicate whether or not to include the target CSI, the target CSI including a CSI corresponding to the one CSI measurement resource information or a CSI of a CSI measurement resource group corresponding to a CSI resource arrangement related to the CSI report arrangement.

[0122] Selectively, 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 for determining the CSI measurement resource group number information and / or CSI measurement resource number information within the CSI measurement resource group.

[0123] Selectively, when the CSI measurement resource is either 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.

[0124] The terminal equipment according to the embodiment of the present invention can realize each step realized by the terminal equipment in the method embodiment shown in Figure 1, and in order to avoid repetition, a detailed explanation is omitted here. In the embodiment of the present invention, the network equipment can realize that different TRPs correspond to different CSI measurement resource groups by arranging CSI measurement resources corresponding to the CSI report arrangement into one or more CSI measurement resource groups. In this way, when the terminal equipment reports a CSI report, it can effectively select one or more TRPs to perform CSI measurements and report a CSI report based on one or more CSI measurement resource groups corresponding to the CSI report arrangement. For the network equipment, it can effectively determine one or more TRPs and perform resource scheduling based on the CSI report.

[0125] Figure 4 is a schematic diagram of the configuration of a network device according to one embodiment of the present invention, the network device comprising: a transmitting module 41 that transmits a CSI report arrangement and one or more CSI measurement resource groups corresponding to the CSI report arrangement to a terminal device, each CSI measurement resource group including one or more CSI measurement resources, each CSI measurement resource group including a channel measurement resource group and / or interference measurement resource group, and each CSI measurement resource including a channel measurement resource and / or interference measurement resource; and a receiving module 42 that receives a CSI report from the terminal device, the CSI report being determined by the terminal device based on the CSI report arrangement and the one or more CSI measurement resource groups.

[0126] Optionally, the network device further includes a configuration module 43 that configures or indicates the relationships between the CSI report configuration and the other CSI report configurations when the transmission module 41 transmits the CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration to a terminal device, and 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 another CSI report configuration.

[0127] Selectively, the transmitting module 41 transmits instruction information to the terminal device before the receiving module 42 receives a CSI report from the terminal device, the instruction information being for instructing the terminal device to choose whether to report the first CSI or the second CSI, or the instruction information being for instructing the types of CSI to be included in the CSI report, the types of CSI including the first CSI, the second CSI, or the first CSI and the second CSI.

[0128] Selectively, the CSI report includes at least one of CSI measurement resource information and CSI measurement resource instruction information, wherein the CSI measurement resource information is for instructing N CSI measurement resources, and the CSI measurement resource instruction information is for instructing a CSI measurement resource corresponding to the first CSI or the second CSI. After receiving the CSI report from the terminal device, the receiving module 42 determines one or more transmission receiving points (TRPs) based on at least one of the CSI measurement resource information and CSI measurement resource instruction information, and performs resource scheduling for the terminal device based on the one or more TRPs.

[0129] The network device according to the embodiment of the present invention can realize each step realized by the network device in the method embodiment shown in Figure 2, and in order to avoid repetition, a detailed explanation is omitted here. In the embodiment of the present invention, the network device can realize that different TRPs correspond to different CSI measurement resource groups by arranging CSI measurement resources corresponding to CSI report arrangements into one or more CSI measurement resource groups, and in this way, when a terminal device reports a CSI report, it can effectively select one or more TRPs to perform CSI measurements based on the CSI report arrangement and the one or more CSI measurement resource groups corresponding to it, and report a CSI report, and for the network device, it can effectively determine one or more TRPs based on the CSI report and perform resource scheduling.

[0130] Figure 5 is a schematic diagram of the configuration of a terminal device according to one embodiment of the present invention. The terminal device 500 shown in Figure 5 comprises at least one processor 501, memory 502, at least one network interface 504, and a user interface 503. Each component in the mobile terminal 500 is connected by a bus system 505. It is understood that the bus system 505 is for enabling connection communication between these components. In addition to the data bus, the bus system 505 further includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, all the various buses in Figure 5 are represented as the bus system 505.

[0131] In this context, the user interface 503 may include a display, a keyboard, a click device (for example, a mouse, a trackball, a touch-sensitive plate, or a touch panel).

[0132] It is understood that the memory 502 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Here, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM) and may be used as an external cache. As described in an illustrative and non-limiting manner, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous-connected dynamic random access memory (Synchlink DRAM, SLDRAM), and direct Rambus random access memory (Direct Rambus RAM, DRRAM). The memory 502 of the systems and methods described in the embodiments of the present invention includes, but is not limited to, these memories and any other suitable memories.

[0133] In some embodiments, the memory 502 stores executable modules or data structures, or subsets thereof, or extensions thereof, an operating system 5021, and an application 5022.

[0134] Here, the operating system 5021 includes various system programs such as a framework layer, a core library layer, and a drive layer, and is configured to implement various basic services and process hardware-based tasks. The application 5022 includes various applications such as a media player and a browser, and is configured to implement various application services. A program that implements the embodiment of the present invention may be included in the application 5022.

[0135] In embodiments of the present invention, the terminal device 500 further comprises a computer program stored in memory 502 and executable by processor 501, and when the computer program is executed by processor 501, it realizes the steps of obtaining a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report 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; generating a CSI report using the CSI report configuration and the one or more CSI measurement resource groups; and reporting the CSI report.

[0136] The methods disclosed in the above embodiments of the present invention can be used in or implemented by a processor 501. The processor 501 may be an integrated circuit chip having signal processing capabilities. In implementation, each step of the above method can be completed by integrated logic circuits of the processor 501 hardware or by instructions in software form. The processor 501 may be a common processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component. Each method, step, and logic block diagram disclosed in the embodiments of the present invention can be implemented or executed. The common processor may be a microprocessor or any general-purpose processor. The steps of the methods disclosed in the embodiments of the present invention can be directly implemented to be executed and completed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module may be a computer-readable storage medium known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, or registers. This computer-readable storage medium is located in memory 502, and the processor 501 reads the information in memory 502 and combines it with its hardware to complete the steps of the above method. Specifically, a computer program is stored in this computer-readable storage medium, and when the computer program is executed by the processor 501, each step of the embodiment of the CSI report feedback method is realized.

[0137] It is understood that the embodiments described in the embodiments of the present invention can be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. Regarding hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDevices, DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), common processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in the present invention, or a combination thereof.

[0138] Regarding implementation by software, the technology described in the embodiment of the present invention can be realized by a module (e.g., a process, a function, etc.) for executing the functions described in the embodiment of the present invention. The software code can be stored in memory and executed by a processor. Memory can be implemented within or outside the processor.

[0139] Selectively, when the computer program is executed by the processor 501, the following steps can be achieved: one CSI measurement resource includes one channel measurement resource, the 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, the 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, the channel measurement resource and the interference measurement resource include some or all of the CSI-RS ports in one CSI-RS resource.

[0140] The plurality of CSI measurement resource groups are arranged by one CSI resource arrangement associated with the CSI report arrangement, or each of the plurality of CSI measurement resource groups is arranged by a CSI resource arrangement associated with the CSI report arrangement and a CSI resource arrangement associated with another CSI report arrangement, and the relationships between the CSI report arrangement and the other CSI report arrangements are arranged or indicated by network equipment.

[0141] The step of generating a CSI report using the CSI report arrangement and the one or more CSI measurement resources includes the step of 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 in the multiple CSI measurement resource groups; and the step of generating the CSI report using the N CSI measurement resources.

[0142] The CSI report includes at least one of a first CSI and a second CSI, wherein the first CSI is a CSI obtained from 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 from the N CSI measurement resources, where N is greater than 1, and the N CSI measurement resources belong to the multiple CSI measurement resource groups, or the N CSI measurement resources each belong to one of the N CSI measurement resource groups.

[0143] The transmission method corresponding to the second CSI is one of the following: non-coherent joint coordinating transmission (NCJT), single-frequency network (SFN), spatial division multiplexing (SDM), frequency division multiplexing (FDM), or time division multiplexing (TDM). The transmission method corresponding to the second CSI is either instructed by the network equipment or predetermined by the network equipment and the terminal equipment.

[0144] Prior to the step of reporting the CSI report, the terminal device further receives instruction information from the network device, the instruction information being for the terminal device to choose whether to report the first CSI or the second CSI, or the instruction information being for the type of CSI to be included in the CSI report, the type of CSI including the first CSI, the second CSI, or the first CSI and the second CSI.

[0145] If the instruction information is for instructing the terminal device 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 for instructing the N CSI measurement resources, the CSI measurement resource instruction information is for instructing the 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, the CSI report includes the first CSI when P is an integer between 1 and N, N is an integer between 2 and 1, and P is 1, and the CSI report includes the second CSI when P is greater than 1.

[0146] If the instruction information is for indicating that the type of CSI included in the CSI report is the first CSI, then the CSI report includes CSI measurement resource information, the CSI measurement resource information is for indicating one CSI measurement resource, and the first CSI corresponds to the one CSI measurement resource, or the CSI report includes CSI measurement resource information and CSI measurement resource instruction information, the CSI measurement resource information is for indicating the N CSI measurement resources, the CSI measurement resource instruction information is for indicating one CSI measurement resource corresponding to the first CSI, and the one CSI measurement resource belongs to the N CSI measurement resources.

[0147] If the instruction information is for indicating that the type of CSI included in the CSI report is the second CSI, then the CSI report includes CSI measurement resource information, the CSI measurement resource information is for indicating 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 for indicating the N CSI measurement resources, the CSI measurement resource instruction information is for indicating 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.

[0148] If the instruction information is for indicating that the CSI types included in the CSI report are the first CSI and the second CSI, then the CSI report includes CSI measurement resource information and CSI measurement resource instruction information, the CSI measurement resource information is for indicating the N CSI measurement resources, and the second CSI corresponds to the N CSI measurement resources, the CSI measurement resource instruction information is for indicating one CSI measurement resource corresponding to the first CSI, and 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 instruction information and the second CSI measurement resource instruction information, the first CSI measurement resource instruction information is for indicating one CSI measurement resource corresponding to the first CSI, the second CSI measurement resource instruction information is for indicating 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, P is an integer greater than 1 and less than or equal to N, or 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 for instructing N1 CSI measurement resources, the second CSI measurement resource information is for instructing N2 CSI measurement resources, the first CSI measurement resource instruction information is for instructing one CSI measurement resource corresponding to the first CSI, the second CSI measurement resource instruction information is for instructing 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 combined set of the N1 CSI measurement resources and the N2 CSI measurement resources is the N CSI measurement resources, and N1 is an integer greater than or equal to 1.N2 is an integer greater than or equal to 2, 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, the first CSI measurement resource information is for instructing one CSI measurement resource corresponding to the first CSI, the second CSI measurement resource information is for instructing N3 CSI measurement resources, the CSI measurement resource instruction information is for instructing 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 combined set 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.

[0149] The second CSI includes L rank indicator RIs and P CSIs, where one of the P CSIs is a portion of the CSIs obtained from P CSI measurement resources, and the portion of CSI corresponds to one of the P CSI measurement resources, where L is an integer between 1 and N, and P is an integer greater than 1 and less than or equal to N, and when L is 1, the RI corresponding to the P CSIs is one RI, or the sum of the P RIs corresponding to the P CSIs is the one RI, and when L is P, the P Each CSI corresponds to one RI, and the CSI is a broadband CSI including at least one of the broadband precoding matrix index PMI and the broadband channel quality index CQI, and a subband CSI including at least one of the subband PMI and subband CQI, wherein the subband PMI includes a broadband PMI portion and K subband PMI portions, and the subband CQI includes at least one of a subband CSI including a broadband CQI portion and K subband CQI portions.

[0150] The CSI report may include one CSI measurement resource information or specific CSI measurement resource information, or it may not include any CSI measurement resource information, and the specific CSI measurement resource information is used to indicate that the CSI report does not include a target CSI. If the CSI report includes one CSI measurement resource information or does not include CSI measurement resource indication information, the CSI report may further indicate whether or not it includes the target CSI, and the target CSI includes a CSI corresponding to the one CSI measurement resource information or a CSI of a CSI measurement resource group corresponding to a CSI resource arrangement related to the CSI report arrangement.

[0151] 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 for determining the CSI measurement resource group number information and / or CSI measurement resource number information within the CSI measurement resource group.

[0152] 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.

[0153] The terminal device 500 can perform each of the steps that the terminal device implements in the above embodiment, and in order to avoid repetition, a detailed explanation is omitted here.

[0154] In embodiments of the present invention, network equipment can arrange CSI measurement resources corresponding to CSI report configurations into one or more CSI measurement resource groups, thereby enabling different TRPs to correspond to different CSI measurement resource groups. In this way, when terminal equipment reports a CSI report, it can effectively select one or more TRPs to perform CSI measurements based on the CSI report configuration and the corresponding one or more CSI measurement resource groups, and then report the CSI report. For network equipment, it can effectively determine one or more TRPs based on the CSI report and perform resource scheduling.

[0155] Referring to Figure 6, which is a configuration diagram of a network device applied in an embodiment of the present invention, the network device 600 comprises a processor 601, a transceiver 602, a memory 603, a user interface 604, and a bus interface. In the embodiment of the present invention, the network device 600 further comprises a computer program stored in the memory 603 and executable by the processor 601. When the computer program is executed by the processor 601, The process involves transmitting 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; and receiving a CSI report from the terminal device, wherein the CSI report is determined by the terminal device based on the CSI report configuration and the one or more CSI measurement resource groups.

[0156] In Figure 6, the bus architecture may include any number of interconnected buses and bridges, specifically, one or more processors represented by processor 601 and memory represented by memory 603, which are interconnected by various circuits. The bus architecture can further connect various other circuits, such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and will not be further described herein. The bus interface provides an interface. The transceiver 602 may be a set of components including a transmitter and a receiver, and provides a unit for communicating with various other devices over a transmission medium. Depending on the user equipment, the user interface 604 may be an interface that allows external or internal connection of necessary devices, which include, but are not limited to, keypads, displays, speakers, microphones, and operating levers.

[0157] Processor 601 is responsible for managing the bus architecture and normal processing, and memory 603 can be used to store data that processor 601 uses when performing operations.

[0158] In embodiments of the present invention, network equipment can arrange CSI measurement resources corresponding to CSI report configurations into one or more CSI measurement resource groups, thereby enabling different TRPs to correspond to different CSI measurement resource groups. In this way, when terminal equipment reports a CSI report, it can effectively select one or more TRPs to perform CSI measurements based on the CSI report configuration and the corresponding one or more CSI measurement resource groups, and then report the CSI report. For network equipment, it can effectively determine one or more TRPs based on the CSI report and perform resource scheduling.

[0159] Selectively, when a computer program is executed by the processor 603, and further transmits a CSI report configuration and one or more CSI measurement resource groups corresponding to the CSI report configuration to a terminal device, the step of configuring or indicating the relationships between the CSI report configuration and the other CSI report configurations can be realized when the multiple CSI measurement resource groups are configured by a CSI resource configuration related to the CSI report configuration and a CSI resource configuration related to another CSI report configuration.

[0160] Before receiving a CSI report from the terminal device, instruction information is transmitted to the terminal device, the instruction information being used to instruct the terminal device to choose whether to report the first CSI or the second CSI, or the instruction information being used to specify the types of CSI to be included in the CSI report, the types of CSI including the first CSI, the second CSI, or the first CSI and the second CSI.

[0161] The CSI report includes at least one of CSI measurement resource information and CSI measurement resource instruction information, wherein the CSI measurement resource information is for instructing N CSI measurement resources, and the CSI measurement resource instruction information is for instructing a CSI measurement resource corresponding to the first CSI or the second CSI. After receiving the CSI report from the terminal device, one or more transmission receiving points (TRPs) are determined using at least one of the CSI measurement resource information and CSI measurement resource instruction information, and resource scheduling is performed for the terminal device using the one or more TRPs.

[0162] Preferably, an embodiment of the present invention further comprises a portable terminal having a processor 110, a memory 109, and a computer program stored in the memory 109 and executable by the processor 110, wherein when this computer program is executed by the processor 110, each step of the embodiment of the CSI report feedback method described above is realized and the same technical effects are achieved. In order to avoid repetition, a detailed explanation is omitted here.

[0163] Embodiments of the present invention further provide a computer-readable storage medium that stores a computer program, and when this computer program is executed by a processor, it realizes each step of the embodiment of the CSI report feedback method described above and achieves the same technical effects. In order to avoid repetition, a detailed explanation is omitted here. Here, the computer-readable storage medium is, for example, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0164] It should be explained that in this specification, the terms “including,” “consisting of,” or any other variation thereof are intended to include non-exclusive inclusion, thereby meaning that a process, method, article, or apparatus containing a set of elements includes not only those elements but also other elements not explicitly stated, or elements specific to such process, method, article, or apparatus. Unless otherwise specified, an element limited by the phrase “including one…” does not preclude the existence of other identical elements in a process, method, article, or apparatus containing that element.

[0165] From the above description of the embodiments, it will be clear to those skilled in the art that the methods of the above embodiments can be implemented in the form of a combination of software and a necessary common hardware platform, and of course, they may also be implemented by hardware, but in many cases the former is a more preferred embodiment. Based on this view, the technical solutions of the present invention can be implemented substantially or in part in the form of a software product, the computer software product being stored on a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and including a plurality of instructions that cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network equipment, etc.) to execute the methods of each embodiment of the present invention.

[0166] Although embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the above-described specific embodiments. The above-described specific embodiments are merely illustrative and not limiting. Many forms that a person skilled in the art can make based on the suggestions of the present invention without departing from the spirit of the invention and the scope of protection of the claims are all within the scope of protection of the present invention.

Claims

1. A feedback method for channel status information (CSI) reports applied to terminal devices, A step of obtaining a CSI report configuration and a plurality of CSI measurement resource groups corresponding to the CSI report 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 each CSI measurement resource includes a channel measurement resource. The steps include generating a CSI report using the CSI report configuration and the multiple CSI measurement resource groups, This includes the step of reporting the aforementioned CSI report, The CSI report includes a second CSI, or includes both a first and second CSI. The first CSI is a CSI obtained from one CSI measurement resource, and the one CSI measurement resource belongs to one of the multiple CSI measurement resource groups. The second CSI is a CSI obtained from N CSI measurement resources, where N is greater than 1, and each of the N CSI measurement resources belongs to one of N CSI measurement resource groups. Before the step of reporting the aforementioned CSI report, The process further includes the step of receiving instruction information from a network device, wherein the instruction information is for indicating the type of CSI included in the CSI report, and the type of CSI included in the CSI report is the second CSI, or the first CSI and the second CSI. How to provide feedback on Channel Status Information (CSI) reports.

2. The method according to claim 1, wherein one CSI measurement resource includes one channel measurement resource, and the channel measurement resource includes a channel state information reference signal (CSI-RS) resource or a synchronization signal block (SSB) resource.

3. The method according to claim 2, wherein the plurality of CSI measurement resource groups are arranged by one CSI resource arrangement associated with the CSI report arrangement.

4. The method according to claim 1, wherein the number of groups of the plurality of CSI measurement resource groups is N, and N is 2.

5. The transmission method corresponding to the second CSI is non-coherent joint coordinating transmission (NCJT), The method according to claim 1, wherein the transmission method corresponding to the second CSI is instructed by a network device or predetermined by the network device and the terminal device.

6. The CSI report may include one CSI measurement resource information or specific CSI measurement resource information, or it may not include any CSI measurement resource information. The aforementioned specific CSI measurement resource information is intended to indicate that the target CSI is not included in the CSI report. The method according to claim 1, wherein if the CSI report includes one CSI measurement resource information, or does not include CSI measurement resource instruction information, the CSI report further indicates whether or not to include the target CSI, and the target CSI includes a CSI corresponding to the one CSI measurement resource information or a CSI of a CSI measurement resource group corresponding to a CSI resource arrangement related to the CSI report arrangement.

7. A method for providing feedback on channel status information (CSI) reports applied to network devices, A step of transmitting a CSI report configuration and a plurality of 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 each CSI measurement resource includes a channel measurement resource; The step of receiving a CSI report from the terminal device, wherein the CSI report is determined by the terminal device based on the CSI report configuration and the plurality of CSI measurement resource groups, The CSI report includes a second CSI, or includes both a first and second CSI. The first CSI is a CSI obtained from one CSI measurement resource, and the one CSI measurement resource belongs to one of the multiple CSI measurement resource groups. The second CSI is a CSI obtained from N CSI measurement resources, where N is greater than 1, and each of the N CSI measurement resources belongs to one of N CSI measurement resource groups. Before the step of receiving the CSI report from the terminal device, The method further includes the step of transmitting instruction information to the terminal device, wherein the instruction information is for indicating the type of CSI included in the CSI report, and the type of CSI included in the CSI report is the second CSI, or includes the first CSI and the second CSI. How to provide feedback on Channel Status Information (CSI) reports.

8. An acquisition module for acquiring channel status information (CSI) report configurations and multiple CSI measurement resource groups corresponding to the CSI report configurations, 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 each CSI measurement resource includes an acquisition module that includes a channel measurement resource. Based on the CSI report arrangement and the multiple CSI measurement resource groups, a generation module for generating CSI reports is provided. It comprises a reporting module that reports the aforementioned CSI report, The CSI report includes a second CSI, or includes both a first and second CSI. The first CSI is a CSI obtained from one CSI measurement resource, and the one CSI measurement resource belongs to one of the multiple CSI measurement resource groups. The second CSI is a CSI obtained from N CSI measurement resources, where N is greater than 1, and each of the N CSI measurement resources belongs to one of N CSI measurement resource groups. The acquisition module, before the reporting module reports the CSI report, The system receives instruction information from network equipment, and the instruction information is for indicating the type of CSI included in the CSI report, wherein the type of CSI included in the CSI report is the second CSI, or includes the first CSI and the second CSI. Terminal equipment.

9. The terminal device according to claim 8, wherein one CSI measurement resource includes one channel measurement resource, and the channel measurement resource includes a channel state information reference signal (CSI-RS) resource or a synchronization signal block SSB resource.

10. The terminal device according to claim 9, wherein the plurality of CSI measurement resource groups are arranged by one CSI resource arrangement associated with the CSI report arrangement.

11. The terminal device according to claim 8, wherein the number of CSI measurement resource groups is N, and N is 2.

12. The transmission method corresponding to the second CSI is non-coherent joint coordinating transmission (NCJT), The terminal device according to claim 8, wherein the transmission method corresponding to the second CSI is instructed by the network device or predetermined by the network device and the terminal device.

13. The CSI report may include one CSI measurement resource information or specific CSI measurement resource information, or it may not include any CSI measurement resource information. The aforementioned specific CSI measurement resource information is intended to indicate that the target CSI is not included in the CSI report. The terminal device according to claim 8, wherein the CSI report includes one CSI measurement resource information, or if it does not include CSI measurement resource instruction information, the CSI report further indicates whether or not to include the target CSI, and the target CSI includes a CSI corresponding to the one CSI measurement resource information or a CSI of a CSI measurement resource group corresponding to a CSI resource arrangement related to the CSI report arrangement.

14. A transmission module that transmits a channel status information (CSI) report configuration and a plurality of 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 each CSI measurement resource includes a transmission module containing a channel measurement resource. A receiving module that receives a CSI report from the terminal device, wherein the CSI report is obtained by the terminal device based on the CSI report arrangement and the plurality of CSI measurement resource groups, The CSI report includes a second CSI, or includes both a first and second CSI. The first CSI is a CSI obtained from one CSI measurement resource, and the one CSI measurement resource belongs to one of the multiple CSI measurement resource groups. The second CSI is a CSI obtained from N CSI measurement resources, where N is greater than 1, and each of the N CSI measurement resources belongs to one of N CSI measurement resource groups. The transmitting module, before the receiving module receives the CSI report from the terminal device, Instruction information is transmitted to the terminal device, and the instruction information is for indicating the type of CSI included in the CSI report, wherein the type of CSI included in the CSI report is the second CSI, or includes the first CSI and the second CSI. Network equipment.

15. A terminal device comprising memory, a processor, and a computer program stored in the memory and executable by the processor, wherein when the computer program is executed by the processor, the steps of the method according to any one of claims 1 to 6 are realized.

16. A network device comprising memory, a processor, and a computer program stored in the memory and executable by the processor, wherein when the computer program is executed by the processor, the steps of the method according to claim 7 are realized.

17. A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are realized.

18. A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the steps of the method according to claim 7 are realized.

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