Method, device and storage medium for reporting channel state information

Abstract

[Solution] The present disclosure relates to a method, device, and storage medium for reporting channel state information, and relates to the field of communications technology, for realizing CSI reporting corresponding to a plurality of CSI-RS resources. The method includes the steps of: determining N target CSI-RS resources from among N channel state information reference signal (CSI-RS) resources in response to N CSI-RS resources being configured for the terminal by a network device, where N and N are positive integers and 1≦N≦N; and transmitting channel state information (CSI) corresponding to the N target CSI-RS resources to the network device.

Description

[Technical Field]

[0001] The present disclosure relates to the field of communication technology, and more particularly to a method, apparatus and storage medium for reporting channel status information (CSI). [Background technology]

[0002] The New Radio (NR) technology introduces Coherent Joint Transmission (CJT) based on Multi Transmission Reception Point (M-TRP), which allows network devices to transmit and receive beams via multiple Transmission Reception Points (TRPs) to provide services to terminals.

[0003] Currently, a terminal reports channel state information (CSI) to a network device, allowing the network device to perform processing such as resource scheduling based on the channel state information reported by the terminal. However, the reporting of CSI in the related art is only applicable to CSI-RS resources corresponding to a single TRP. Summary of the Invention [Problem to be solved by the invention]

[0004] To overcome the problems existing in the related art, the present disclosure provides a method, apparatus and storage medium for reporting channel state information. [Means for solving the problem]

[0005] According to a first aspect of an embodiment of the present disclosure, there is provided a method for reporting channel state information, the method including: in response to Ntrp channel state information reference signal (CSI-RS) resources being configured for the terminal by a network device, determining N target CSI-RS resources from among the Ntrp CSI-RS resources, where Ntrp and N are positive integers and 1≦N≦Ntrp; and transmitting channel state information (CSI) corresponding to the N target CSI-RS resources to the network device.

[0006] According to a second aspect of an embodiment of the present disclosure, there is provided a method for reporting channel state information applicable to a network device, comprising: receiving channel state information (CSI) corresponding to N target CSI-RS resources transmitted from the terminal, wherein the N target CSI-RS resources are CSI-RS resources among Ntrp CSI-RS resources configured for the terminal by the network device, where Ntrp and N are positive integers and 1≦N≦Ntrp.

[0007] According to a third aspect of an embodiment of the present disclosure, there is provided a channel state information reporting device applicable to a terminal, the reporting device including: a determination module for determining N target CSI-RS resources from among N target CSI-RS resources in response to N target CSI-RS resources being configured for the terminal by a network device, where N target CSI-RS resources are N and N are positive integers and 1≦N≦N; and a transmission module for transmitting channel state information (CSI) corresponding to the N target CSI-RS resources to the network device.

[0008] According to a fourth aspect of an embodiment of the present disclosure, there is provided a channel state information reporting apparatus applicable to a network device, the apparatus including: a receiving module for receiving channel state information (CSI) corresponding to N target CSI-RS resources transmitted from the terminal, where the N target CSI-RS resources are CSI-RS resources among Ntrp CSI-RS resources configured for the terminal by the network device, where Ntrp and N are positive integers and 1≦N≦Ntrp.

[0009] According to a fifth aspect of an embodiment of the present disclosure, there is provided an apparatus for reporting channel state information, comprising: a processor; and a memory for storing instructions executable by the processor, wherein the processor is configured to perform a method according to the first aspect and any embodiment thereof.

[0010] According to a sixth aspect of an embodiment of the present disclosure, there is provided an apparatus for reporting channel state information, comprising: a processor; and a memory for storing instructions executable by the processor, wherein the processor is configured to perform the method according to the second aspect and any of the embodiments thereof.

[0011] According to a seventh aspect of an embodiment of the present disclosure, there is provided a storage medium having instructions stored thereon, the instructions in the storage medium, when executed by a processor of a terminal, causing the terminal to perform the method of the first aspect and any of its embodiments.

[0012] According to an eighth aspect of an embodiment of the present disclosure, there is provided a storage medium having instructions stored thereon, the instructions in the storage medium, when executed by a processor of a network device, causing the network device to perform the method of the second aspect and any embodiment thereof. [Effects of the Invention]

[0013] The technical solutions provided by the embodiments of the present disclosure may achieve the following beneficial effects: When Ntrp CSI-RS resources are configured for a terminal by a network device, the terminal can select N target CSI-RS resources from the Ntrp CSI-RS resources and send CSI corresponding to the N target CSI-RS resources to the network device, thereby realizing CSI reporting corresponding to multiple CSI-RS resources and allowing the network device to perform resource scheduling based on the CSI corresponding to the multiple CSI-RS resources.

[0014] It should be noted that the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to limit the scope of the present disclosure. [Brief explanation of the drawings]

[0015] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, serve to explain the principles of the present disclosure. [Figure 1] 1 is a schematic diagram of a wireless communication system according to one exemplary embodiment; [Figure 2] FIG. 1 is a schematic diagram of a scenario in which multiple TRPs serve a terminal through coherent transmission in an exemplary embodiment of the present disclosure. [Figure 3] 4 is a flowchart of a method for reporting channel state information according to an exemplary embodiment; [Figure 4] FIG. 10 is a schematic diagram of sorting of non-zero coefficients as illustrated by an exemplary embodiment. [Figure 5] FIG. 10 is a schematic diagram of sorting of non-zero coefficients as illustrated by an exemplary embodiment. [Figure 6] 4 is a flowchart of a method for reporting channel state information according to an exemplary embodiment; [Figure 7] 1 is a block diagram of a channel state information reporting device according to an exemplary embodiment; [Figure 8]1 is a block diagram of a channel state information reporting device according to an exemplary embodiment; [Figure 9] FIG. 1 is a block diagram of an apparatus for reporting channel state information according to an exemplary embodiment. [Figure 10] FIG. 1 is a block diagram of an apparatus for reporting channel state information according to an exemplary embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0016] Illustrative embodiments will now be described in detail, examples of which are illustrated in the drawings. In the following description, when referring to the drawings, the same numerals in different drawings represent the same or similar elements unless otherwise stated. The embodiments described in the following illustrative examples do not represent all embodiments consistent with the present disclosure.

[0017] The channel state information reporting method provided by the embodiments of the present disclosure is applicable to the wireless communication system shown in Figure 1. As shown in Figure 1, the wireless communication system includes a network device and a terminal. The terminal is connected to the network device through wireless resources and performs data transmission.

[0018] 1 is merely an example, and the wireless communication system may include other network devices, such as core network devices, wireless relay devices, and wireless backhaul devices that are not depicted in FIG 1. The embodiments of the present disclosure do not limit the number of network devices and the number of terminals included in the wireless communication system.

[0019] Note that the wireless communication system in the embodiments of the present disclosure is a network that provides wireless communication functions. The wireless communication system may use different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and carrier sense multiple access with collision avoidance (CSMA). Depending on factors such as different network capacities, speeds, and delays, networks can be divided into 2G (second generation) networks, 3G networks, 4G networks, and future evolutionary networks such as 5G networks, which may also be referred to as new radio networks (NR). For ease of explanation, the present disclosure may also refer to wireless communication networks as networks for short.

[0020] Furthermore, a network device according to the present disclosure may be referred to as a radio access network device. The radio access network device may be a base station, an evolved node B (base station), a home base station, an access point (AP) in a wireless fidelity (WIFI) system, a radio relay node, a radio backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc., a gNB in ​​an NR system, or a component or part of a device constituting a base station. Note that the embodiments of the present disclosure do not limit the specific technology used by the network device or the specific device form. In the present disclosure, a network device can provide communication coverage for a specific geographical area and can communicate with terminals within the coverage (cell). Furthermore, in the case of a vehicle-to-everything (V2X) communication system, the network device may be an in-vehicle device.

[0021] Furthermore, the terminal according to the present disclosure may also be referred to as a terminal device, user equipment (UE), mobile station (MS), mobile terminal (MT), etc., and is a device that provides voice and / or data connectivity to a user. For example, the terminal may be a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, some examples of terminals include a mobile phone, customer premises equipment (CPE), pocket personal computer (PPC), personal digital assistant (PDA), laptop, tablet, wearable device, or in-vehicle device. In addition, in the case of a vehicle-to-everything (V2X) communication system, the terminal device may be an in-vehicle device. Note that the embodiments of the present disclosure do not limit the specific technology used by the terminal or the specific device form.

[0022] Due to the low received signal strength of users located at the cell edge, users at the edge experience a poor experience and the system's spectral efficiency is low. Multipoint coordinated transmission has been proposed to improve edge coverage and provide balanced service quality to each user within the service area. Unlike a single TRP (Transmission Reception Point) or a single panel, multipoint coordinated transmission refers to providing data service to a single user via multiple TRPs or panels. Multipoint coordinated transmission technologies include coherent joint transmission (CJT) and non-coherent joint transmission (NCJT). CJT refers to mapping each data stream to multiple TRPs or panels participating in the coordination using a weighting vector. NCJT refers to mapping each data stream to only some of the TRPs or panels. CJT corresponds to concatenating multiple subarrays into a single, higher-dimensional virtual array to obtain higher shaping or precoding gain.

[0023] FIG. 2 is a schematic diagram of a scenario in which multiple TRPs provide services to a terminal through coherent transmission in an exemplary embodiment of the present disclosure. In FIG. 2, a scenario in which three TRPs provide data services to a terminal through coherent transmission is illustrated as an example, but is not limited to this. In FIG. 2, the channels to each TRP of the terminal are represented by H1, H2, and H3, respectively. When calculating the downlink data transmission precoding of the terminal, the channels to which each TRP is mapped can be combined and considered as one higher-dimensional channel. That is, H=[H1 T , H2 T , H3 T ] T and then calculate the downlink data transmission precoding of the terminal based on the combined channel H.

[0024] When multiple TRPs perform CJT, the downlink data transmission precoding of the terminal can be calculated based on the codebook structures of the two modes.

[0025]

number

[0026] W 1, n where W represents one or more spatial domain basis vectors corresponding to the N-th TRP, the codebook structure is an extended codebook structure designed based on the Rel-16 Type II codebook, and W 1, n where ∑ i = 1 , ∑ j = 2 , ∑ j = 3 , ∑ j = 4 , ∑ j = 5 , ∑ j = 6 , ∑ j = 7 , ∑ j = 8 , ∑ j = 9 , ∑ j = 10 , ∑ j = 11 , ∑ j = 12 , �

[0027] In the current standard, for the Rel-16 Type II codebook or the Rel-17 port selection Type II port selection codebook, the channel state information (CSI) is reported in two parts, Part 1 and Part 2, and the specific contents of Part 1 and Part 2 are shown in Table 1. In addition, Part 2 is divided into three groups, G0, G1, and G2, based on the sorting of coefficient priority, spatial domain basis vectors, frequency domain basis vectors, and strongest coefficient indication.

[0028] [Table 1]

[0029] When uplink resources are limited and a terminal is unable to report all of Part 1 and Part 2 of CSI in a single report, in order to reasonably discard some of the CSI content, the Rel-16 Type II codebook or Rel-17 Type II port selection defines the following priority sorting function for the coefficients in the combination coefficient matrix, where the smaller the function value, the higher the priority, and conversely, the lower the priority.

[0030] The coefficient priority sorting for the Rel-16 Type II codebook is determined based on the following formula:

[0031]

number

[0032] The coefficient priority sorting of the Rel-17 port selection Type II PS codebook is determined based on the following formula:

[0033]

number

[0034] where l = 1, 2, ..., v, i = 0, 1, ..., 2K1-1, and f = 0, 1, ..., M-1, where l represents the number of layers, v represents the rank, i represents the port index, f represents the frequency-domain basis vector index, K1 represents the number of CSI-RS ports selected by the terminal, and M represents the number of frequency-domain basis vectors.

[0035] It should be noted that the smaller the value of Pri(l,i,f), the higher the priority of the non-zero coefficient.

[0036] In the related art, CSI reporting is only applied to CSI-RS resources corresponding to a single TRP. When CJT is implemented using multiple TRPs, each TRP corresponding to one CSI-RS resource, how to report CSI for multiple CSI-RS resources corresponding to multiple TRPs is a problem to be solved.

[0037] Therefore, an embodiment of the present disclosure proposes a CSI reporting method, in which when Ntrp CSI-RS resources are configured for a terminal by a network device, the terminal can determine N target CSI-RS resources from the Ntrp CSI-RS resources and send CSI corresponding to the N target CSI-RS resources to the network device, thereby realizing CSI reporting corresponding to multiple CSI-RS resources and allowing the network device to perform resource scheduling based on the CSI corresponding to the multiple CSI-RS resources.

[0038] FIG. 3 is a flowchart of a channel state information reporting method according to an exemplary embodiment. As shown in FIG. 3, the channel state information reporting method is applied to a terminal, and includes the following steps:

[0039] In step S11, in response to the network device configuring Ntrp CSI-RS resources for the terminal, N target CSI-RS resources are determined from the Ntrp CSI-RS resources.

[0040] Here, each CSI-RS resource corresponds to one TRP, and Ntrp CSI-RS resources correspond to Ntrp TRPs, that is, the network device indicates CSI-RS resources corresponding to Ntrp TRPs.

[0041] In one embodiment, the terminal selects N target CSI-RS resources from among the N trp CSI-RS resources by measuring the N trp CSI-RS resources.

[0042] In another embodiment, the terminal directly adopts the Ntrp CSI-RS resources configured by the network device, i.e., N=Ntrp, in which case the terminal does not need to measure and select the Ntrp CSI-RS resources.

[0043] Note that Ntrp and N are positive integers, and 1≦N≦Ntrp.

[0044] In step S12, CSI corresponding to the N target CSI-RS resources is transmitted to the network device.

[0045] In some embodiments, the CSI may be referred to as a CSI report.

[0046] In an embodiment of the present disclosure, when Ntrp CSI-RS resources are configured for a terminal by a network device, the terminal can determine N target CSI-RS resources from the Ntrp CSI-RS resources and send CSI corresponding to the N target CSI-RS resources to the network device, thereby realizing CSI reporting corresponding to multiple CSI-RS resources and allowing the network device to perform resource scheduling based on the CSI corresponding to the multiple CSI-RS resources.

[0047] In the channel state information reporting method provided by the embodiments of the present disclosure, N target CSI-RS resources correspond to one CSI, i.e., indication information of the N CSI-RS resources is carried in the same CSI.

[0048] In the channel state information reporting method provided by the embodiment of the present disclosure, the CSI may include first information (Part 1), and the indication field size corresponding to the first information may be a fixed value, such as a preset value or a default size specified by a protocol.

[0049] In one embodiment, the first information includes at least one of a rank indication, a broadband and / or subband channel quality indication, an indication of the number of non-zero coefficients for all layers, an indication of the number of spatial domain basis vectors or ports in each polarization direction corresponding to the N target CSI-RS resources, an indication of the N target CSI-RS resources, and an indication of the reference CSI-RS resource.

[0050] In some embodiments, the first information may include broadband and / or sub-band channel quality information.

[0051] Here, one broadband may include multiple subbands, and in order to reduce overhead, the subband CQIs are indicated in a differential manner.

[0052] In one embodiment, if four bits indicate broadband CQI, two bits can indicate subband CQI.

[0053] In some embodiments, the first information may include an indication of the number of non-zero coefficients in all layers.

[0054] For example, if the maximum number of non-zero coefficients in each layer is 16 and there are two layers in total, the non-zero coefficient number indication information for all layers can be indicated by 5 bits.

[0055] In some embodiments, if the CSI reporting is based on a Rel-16 Type II codebook extension, the first information may include an indication of the number of spatial domain basis vectors in each polarization direction corresponding to the N target CSI-RS resources.If the CSI reporting is based on a Rel-16 Type II codebook extension, the first information may include an indication of the number of ports in each polarization direction corresponding to the N target CSI-RS resources.

[0056] Here, the total number of combinations of the number of spatial domain basis vectors or the number of ports corresponding to the Ntrp CSI-RS resources by the network device is

[0057]

number

[0058] In some embodiments, the first information may include N target CSI-RS resource indications.

[0059] In one embodiment, the N target CSI-RS resource indications are indicated by a bitmap.

[0060] For example, if four CSI-RS resources are configured for a terminal by a network device and the terminal selects the first and second CSI-RS resources as target CSI-RS resources, a four-bit bitmap can indicate the target CSI-RS resources selected by the terminal and the non-target CSI-RS resources that have not been selected.

[0061] In some embodiments, the first information may include reference CSI-RS resource indication information.

[0062] Here, the reference CSI-RS resource refers to the CSI-RS resource corresponding to the strongest coefficient or the CSI-RS resource indicated by the terminal.

[0063] In one embodiment, the reference CSI-RS resource may be a first CSI-RS resource predefined between the terminal and the network device, but in this case, indication information of the reference CSI-RS resource does not need to be reported via a CSI report.

[0064] In an embodiment of the present disclosure, by specifying indication information in CSI Part 1, the information length of Part 1 can be determined, thereby reducing the complexity of detection by network devices.

[0065] In the channel state information reporting method provided by the embodiment of the present disclosure, the CSI may further include second information (Part 2), and the size of Part 2 of the CSI is determined based on the information in Part 1.

[0066] In one embodiment, the second information includes at least one of: an indication of spatial domain basis vectors or selected ports; an indication of strongest coefficients for each layer; an indication of frequency domain basis vectors; an indication of a phase offset of the target CSI-RS resource relative to the reference CSI-RS resource; an indication of a start point of at least one candidate frequency domain basis vector window; an indication of non-zero coefficients; differential amplitude quantization information and phase quantization information of the non-zero coefficients; and report information of the reference amplitude indication.

[0067] In some embodiments, if the CSI reporting is based on a Rel-16 Type II codebook extension, the first information may include an indication of spatial domain basis vectors.If the CSI reporting is based on a Rel-17 Type II port selection codebook extension, the first information may include an indication of a selected port.

[0068] Here, the spatial domain basis vector indication information or the selected port indication information indicates the spatial domain basis vector or the selected port corresponding to the target CSI-RS resource selected by the terminal.

[0069] In some embodiments, the second information may include an indication of the strongest coefficient for each layer.

[0070] Here, the strongest coefficient indication information indicates the position where the strongest coefficient is located among the non-zero coefficients of each layer.

[0071] In some embodiments, the second information may include frequency domain basis vector indication information.

[0072] Here, the frequency domain basis vector indication information indicates the frequency domain basis vector corresponding to the target CSI-RS resource selected by the terminal.

[0073] In some embodiments, the second information may include a phase offset indication of the target CSI-RS resource relative to the reference CSI-RS resource.

[0074] In some embodiments, the second information may include a starting point indication for at least one candidate frequency-domain basis vector window.

[0075] For example, the network device may indicate N3 candidate frequency domain basis vectors, and the terminal may select a frequency domain basis vector for one window from the N3 candidate frequency domain basis vectors. In this case, the terminal needs to report the start position of the window.

[0076] In some embodiments, the second information may include non-zero coefficient indication information.

[0077] Here, the non-zero coefficient indication information indicates the indication information of the non-zero coefficient reported by the terminal.

[0078] In some embodiments, the second information may include differential amplitude quantization information and phase quantization information of the non-zero coefficients.

[0079] In some embodiments, the second information may include reporting information of the reference amplitude indication information.

[0080] In an embodiment of the present disclosure, when multiple CSI-RS resources correspond to the same CSI, the length of the information in Part 2 can be determined by specifying indication information in CSI Part 1, thereby reducing the complexity of detection by network devices.

[0081] In the channel state information reporting method provided by the embodiment of the present disclosure, the second information includes a plurality of information groups, and different information groups among the plurality of information groups correspond to different priorities.

[0082] In one embodiment, in response to an inability to transmit all of the information contained in the first information and the second information using uplink resources allocated by the network device, one or more lower priority information groups in the second information are discarded.

[0083] For example, the second information includes three information groups: a first information group, a second information group, and a third information group. The priority of the three information groups is first information group > second information group > third information group. If the uplink resources allocated by the network device are not sufficient to transmit all of the information included in the first information and the second information, the third information group is discarded first. If the uplink resources are still not sufficient to transmit the information included in the first information group and the second information group in the first information and the second information, the second information group is discarded.

[0084] In an embodiment of the present disclosure, if the uplink resources allocated by a network device cannot transmit all of the CSI content, some of the CSI content is discarded while ensuring a certain system performance.

[0085] Hereinafter, when CSI is reported based on the Rel-16 Type II codebook extension, a method for grouping indication information in CSI Part 2 will be described.

[0086] Grouping Method 1: In the channel state information reporting method provided by the embodiments of the present disclosure, the second information includes at least a first information group, and the first information group includes at least one of spatial domain basis vector indication information and strongest coefficient indication information of each layer.

[0087] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a second information group, the second information group including: frequency domain basis vector indication information for one or N target CSI-RS resources; relative offset indication information for the N-1 target CSI-RS resources with respect to a reference CSI-RS resource; and a start point indication information for at least one candidate frequency domain basis vector window.

[0088]

number

[0089] and differential amplitude quantization information and phase quantization information of high priority non-zero coefficients, where N represents the target CSI-RS resource, and L n represents the number of spatial domain basis vectors in one polarization direction corresponding to the nth target CSI-RS resource, and M v represents the number of frequency domain basis vectors, and K NZ represents the number of non-zero coefficients in all layers reported by the terminal, v represents the rank, and n represents the nth target CSI-RS resource.

[0090] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a third information group, and the third information group includes:

[0091]

number

[0092] and differential amplitude quantization information and phase quantization information of low priority non-zero coefficients, where N represents the target CSI-RS resource; NZ denotes the number of non-zero coefficients reported by the terminal, and v denotes the rank.

[0093] Grouping method 2: In the channel state information reporting method provided by the embodiments of the present disclosure, the second information includes at least a first information group, and the first information group includes at least one of spatial domain basis vector indication information and strongest coefficient indication information of each layer.

[0094] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a second information group, wherein the second information group includes at least one of: frequency-domain basis vector indication information for the n1 target CSI-RS resources; relative offset indication information for the n1-1 target CSI-RS resources with respect to a reference CSI-RS resource; a start point indication information for at least one candidate frequency-domain basis vector window; non-zero coefficient positions indication information for the first l1 layers or non-zero coefficient positions for the n1 target CSI-RS resources; reference amplitude indication information for the first l1 layers or reference amplitude indication information for the n1 target CSI-RS resources; differential amplitude quantization information and phase quantization information of non-zero coefficients for the first l1 layers or differential amplitude quantization information and phase quantization information of high-priority non-zero coefficients corresponding to the n1 target CSI-RS resources; where:

[0095]

number

[0096] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a third information group, and the third information group includes at least one of non-zero coefficient indication information of the v-l1 layer or non-zero coefficient indication information of the N-n1 target CSI-RS resources, and differential amplitude quantization information and phase quantization information of the non-zero coefficients of the v-l1 layer or differential amplitude quantization information and phase quantization information of the non-zero coefficients corresponding to the N-n1 target CSI-RS resources; where:

[0097]

number

[0098] In the embodiment of the present disclosure, two grouping methods of the indication information in CSI Part 2 are provided when CSI is reported based on the Rel-16 Type II codebook extension, but of course, the actual CSI reporting is not limited to the two grouping methods provided by the embodiment of the present disclosure and may be any method that meets actual needs, thereby reducing the complexity of detection by network devices by determining the information length of Part 1 or Part 2.

[0099] Hereinafter, when CSI is reported based on the Rel-17 Type II port selection codebook extension, a method for grouping indication information in CSI Part 2 will be described.

[0100] Grouping Method 1: In the channel state information reporting method provided by the embodiments of the present disclosure, the second information includes at least a fourth information group, and the fourth information group includes at least one of port selection indication information, strongest coefficient indication information for each layer, and frequency domain basis vector selection indication information.

[0101] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a fifth information group, where the fifth information group includes port selection indication information, relative offset indication information of the N-1 target CSI-RS resources with respect to the reference CSI-RS resource, and

[0102]

number

[0103] and differential amplitude quantization information and phase quantization information of high priority non-zero coefficients, where N represents the target CSI-RS resource, and L nrepresents the number of CSI-RS ports in one polarization direction corresponding to the nth target CSI-RS resource, M represents the number of frequency-domain basis vectors, and K NZ denotes the number of non-zero coefficients in all layers reported by the terminal, and v denotes the rank.

[0104] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a sixth information group, and the sixth information group includes:

[0105]

number

[0106] and differential amplitude quantization information and phase quantization information of low priority non-zero coefficients, where N represents the target CSI-RS resource; NZ denotes the number of non-zero coefficients reported by the terminal, and v denotes the rank.

[0107] Grouping method 2: In the channel state information reporting method provided by the embodiments of the present disclosure, the second information includes at least a fourth information group, and the fourth information group includes at least one of port selection indication information, strongest coefficient indication information for each layer, and frequency domain basis vector selection indication information.

[0108] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a fifth information group, wherein the fifth information group includes at least one of: port selection indication information; relative offset indication information of the n1−1 target CSI-RS resources with respect to a reference CSI-RS resource; non-zero coefficient position indication information of the first l1 layer or non-zero coefficient position indication information of the n1 target CSI-RS resources; reference amplitude indication information of the first l1 layer or reference amplitude indication information of the n1 target CSI-RS resources; differential amplitude quantization information and phase quantization information of non-zero coefficients of the first l1 layer or differential amplitude quantization information and phase quantization information of non-zero coefficients corresponding to the n1 target CSI-RS resources; where:

[0109]

number

[0110] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a sixth information group, wherein the sixth information group includes at least one of non-zero coefficient position indication information of the v-l1 layer or non-zero coefficient position indication information of the N-n1 target CSI-RS resources, and differential amplitude quantization information and phase quantization information of the non-zero coefficients of the v-l1 layer or differential amplitude quantization information and phase quantization information of the non-zero coefficients corresponding to the N-n1 target CSI-RS resources; where:

[0111]

number

[0112] In the embodiments of the present disclosure, two grouping methods of the indication information in CSI Part 2 are provided when CSI is reported based on the Rel-17 Type II port selection codebook extension. Of course, the actual CSI reporting is not limited to the two grouping methods provided by the embodiments of the present disclosure, and may be any method that meets actual needs. This allows the length of the information in Part 1 or Part 2 to be determined, thereby reducing the complexity of detection by network devices.

[0113] In the above embodiment, different groups in CSI Part 2 are associated with high-priority and low-priority non-zero coefficients, and the method for determining the priorities of the non-zero coefficients will be described below.

[0114] In the channel state information reporting method provided by the embodiments of the present disclosure, when CSI is reported based on the Rel-16 Type II codebook extension, the priority of the non-zero coefficients is determined based on one of the following methods:

[0115] Method 1: According to the priority order of the target CSI-RS resource, with a single target CSI-RS resource as a unit, sort non-zero coefficients at the same position of the same target CSI-RS resource in different layers, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sort non-zero coefficients corresponding to all spatial domain basis vectors of the same target CSI-RS resource in the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficient; interleave non-zero coefficients corresponding to all frequency domain basis vectors of the same layer based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient.

[0116] In one embodiment, the preset algorithm comprises:

[0117]

number

[0118] In Method 1, the target CSI-RS resources are sorted according to the priority order of the target CSI-RS resources, with each target CSI-RS resource being a unit, with the highest priority target CSI-RS resource being prioritized. The non-zero coefficients with the smallest spatial domain basis vector indices in the first frequency domain basis vectors of the first layer are sorted first, followed by the non-zero coefficients with the smallest spatial domain basis vector indices in the first frequency domain basis vectors of the second layer, and so on. After the non-zero coefficients with the smallest spatial domain basis vector indices in the first frequency domain basis vectors of all layers have been sorted, the non-zero coefficients with the next smallest spatial domain basis vector indices in the first frequency domain basis vectors of the first layer are sorted, followed by the non-zero coefficients with the next smallest spatial domain basis vector indices in the first frequency domain basis vectors of the second layer, and so on until all the non-zero coefficients corresponding to the spatial domain basis vectors of the highest priority target CSI-RS resources have been sorted. Next, the non-zero coefficients of all frequency-domain basis vectors in the target CSI-RS resource with the highest priority are interleaved based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient corresponding to the frequency-domain basis vector. After all non-zero coefficients in the target CSI-RS resource with the highest priority have been sorted, all non-zero coefficients in the target CSI-RS resource with the next highest priority are sorted in the same manner as all non-zero coefficients in the target CSI-RS resource with the highest priority, and so on until all non-zero coefficients corresponding to all target CSI-RS resources have been sorted.

[0119] In some embodiments, the priority of a non-zero coefficient is determined based on the following formula:

[0120]

number

[0121] where l represents the number of layers and i n represents the index of the spatial domain basis vector of the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, n represents the nth target CSI-RS resource, and L j represents the number of spatial domain basis vectors in one polarization direction corresponding to the jth CSI-RS resource, v represents the rank, and M v represents the number of frequency domain basis vectors, and L n represents the number of spatial domain basis vectors in one polarization direction corresponding to the nth CSI-RS resource,

[0122]

number

[0123] Note that Pri(l,i n ,f,n), the smaller the value, the higher the priority of the corresponding coefficient.

[0124] Method 2: Sort non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sort non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources in the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficient; and interleave non-zero coefficients corresponding to different frequency domain basis vectors in the same layer based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient.

[0125] In one embodiment, the preset algorithm comprises:

[0126]

number

[0127] In Method 2, sorting is performed according to the priority order of the target CSI-RS resources, starting with the nonzero coefficient with the smallest spatial domain basis vector index in the first frequency domain basis vector of the highest-priority target CSI-RS resource, followed by the nonzero coefficient with the smallest spatial domain basis vector index in the first frequency domain basis vector of the second layer, and so on. After the nonzero coefficients with the smallest spatial domain basis vector index in the first frequency domain basis vector of all layers have been sorted, the nonzero coefficient with the next smallest spatial domain basis vector index in the first frequency domain basis vector of the first layer is sorted, followed by the nonzero coefficient with the next smallest spatial domain basis vector index in the first frequency domain basis vector of the second layer, and so on until all nonzero spatial domain basis vectors in the first frequency domain basis vectors of all target CSI-RS resources have been sorted. Next, in the same manner, the non-zero coefficients of all spatial domain basis vectors in the second frequency domain basis vectors of all target CSI-RS resources are sorted. After the non-zero coefficients of all spatial domain basis vectors of all target CSI-RS resources are sorted, the non-zero coefficients of all frequency domain basis vectors in the target CSI-RS resources are interleaved based on a preset algorithm, and the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient corresponding to the frequency domain basis vector.

[0128] In some embodiments, the priority of a non-zero coefficient is determined based on the following formula:

[0129]

number

[0130]

number

[0131] It should be noted that the smaller the Pri(l,i,f) value, the higher the priority of the corresponding coefficient.

[0132] Method 3: According to the priority order of the target CSI-RS resource, with a single target CSI-RS resource as a unit, sort the non-zero coefficients of all spatial domain basis vectors in the single target CSI-RS resource, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; sort the non-zero coefficients of all frequency domain basis vectors in the single target CSI-RS resource based on a pre-set algorithm, where the smaller the value according to the pre-set algorithm, the higher the priority of the non-zero coefficient; sort the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficient.

[0133]

number

[0134] In Method 3, the highest-priority target CSI-RS resource among the target CSI-RS resources is sorted preferentially for each target CSI-RS resource according to the priority order of the target CSI-RS resources. The non-zero coefficients of the spatial domain basis vectors with the smallest index in the first frequency-domain basis vectors of the first layer are sorted first, followed by the non-zero coefficients of the spatial domain basis vectors with the next smallest index in the first frequency-domain basis vectors of the first layer. After the non-zero coefficients of all spatial domain basis vectors in all frequency-domain basis vectors of the first layer have been sorted, the non-zero coefficients of all spatial domain basis vectors in all frequency-domain basis vectors of the second layer are sorted. After the non-zero coefficients of all spatial domain basis vectors in all frequency-domain basis vectors in all layers corresponding to the highest-priority target CSI-RS resource have been sorted, all frequency-domain basis vectors in all layers corresponding to the highest-priority target CSI-RS resource are interleaved based on a preset algorithm, where the smaller the value obtained by the preset algorithm, the higher the priority of the non-zero coefficient corresponding to the frequency-domain basis vector. After all non-zero coefficients in the target CSI-RS resource with the highest priority are sorted, all non-zero coefficients in the target CSI-RS resource with the next highest priority are sorted in the same manner as all non-zero coefficients in the target CSI-RS resource with the highest priority, and so on until all non-zero coefficients corresponding to all target CSI-RS resources have been sorted.

[0135] In some embodiments, the priority of a non-zero coefficient is determined based on the following formula:

[0136]

number

[0137] where l represents the number of layers and i nrepresents the index of the spatial domain basis vector of the nth target CSI-RS resource, f represents the index of the frequency domain basis vector,

[0138]

number

[0139] Note that Pri(l,i n ,f,n), the smaller the value, the higher the priority of the corresponding coefficient.

[0140] Method 4: Sort the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources in the same layer according to the priority order of the target CSI-RS resources, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; interleave the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources in different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; interleave the non-zero coefficients corresponding to all frequency domain basis vectors of all target CSI-RS resources in different layers based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient.

[0141]

number

[0142] In Method 4, sorting is performed according to the priority order of the target CSI-RS resources, starting with the nonzero coefficient with the smallest spatial domain basis vector index in the first frequency domain basis vector of the highest-priority target CSI-RS resource, sorting the nonzero coefficient with the smallest spatial domain basis vector index in the first frequency domain basis vector of the first layer first, then sorting the nonzero coefficient with the next smallest spatial domain basis vector index in the first frequency domain basis vector of the first layer, and after sorting the nonzero coefficients of all spatial domain basis vectors in all frequency domain basis vectors of all target CSI-RS resources of the first layer, sorting the nonzero coefficients of all spatial domain basis vectors in all frequency domain basis vectors of the second layer. After sorting the nonzero coefficients of all spatial domain basis vectors in all frequency domain basis vectors of all target CSI-RS resources in all layers, interleaving the nonzero coefficients of all frequency domain basis vectors of all target CSI-RS resources based on a preset algorithm, where the smaller the value of the preset algorithm, the higher the priority of the nonzero coefficient corresponding to the frequency domain basis vector.

[0143] In some embodiments, the priority of a non-zero coefficient is determined based on the following formula:

[0144]

number

[0145] where l represents the number of layers, i=0,1,...,2L tot-1 and

[0146]

number

[0147] The smaller the value of Pri(l,i,f), the higher the priority of the corresponding coefficient.

[0148] In an embodiment of the present disclosure, by sorting the priorities of non-zero coefficients, if the uplink resources allocated by a network device cannot transmit all of the CSI content, some of the CSI content can be discarded while ensuring a certain system performance.

[0149] In the channel state information reporting method provided by the embodiments of the present disclosure, when CSI is reported based on the Rel-17 Type II port selection codebook extension, the priority of the non-zero coefficients is determined based on one of the following methods:

[0150] Method 1: According to the priority order of the target CSI-RS resource, sort non-zero coefficients at the same position of the same target CSI-RS resource in different layers, taking a single target CSI-RS resource as a unit, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sort non-zero coefficients corresponding to the indices of all CSI-RS ports of the same target CSI-RS resource in the same layer, where the smaller the CSI-RS port index, the higher the priority of the non-zero coefficient; sort non-zero coefficients corresponding to all frequency-domain basis vectors of the same layer, where the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficient.

[0151] In Method 1, the target CSI-RS resources are sorted according to the priority order of the target CSI-RS resources, with the highest priority target CSI-RS resource being the unit of a single target CSI-RS resource. The non-zero coefficient with the smallest CSI-RS port index in the first frequency-domain basis vector of the first layer is sorted first, followed by the non-zero coefficient with the smallest CSI-RS port index in the first frequency-domain basis vector of the second layer, and so on. After the non-zero coefficients with the smallest CSI-RS port index in the first frequency-domain basis vector of all layers have been sorted, the non-zero coefficient with the next smallest CSI-RS port index in the first frequency-domain basis vector of the first layer is sorted, followed by the non-zero coefficient with the next smallest CSI-RS port index in the first frequency-domain basis vector of the second layer, and so on until all the non-zero coefficients corresponding to the CSI-RS ports in the highest-priority target CSI-RS resource have been sorted. Next, the non-zero coefficients of all frequency-domain basis vectors in the target CSI-RS resource with the highest priority are interleaved, and the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient corresponding to the frequency-domain basis vector. After all non-zero coefficients in the target CSI-RS resource with the highest priority have been sorted, all non-zero coefficients in the target CSI-RS resource with the next highest priority are sorted in the same manner as all non-zero coefficients in the target CSI-RS resource with the highest priority, and so on until all non-zero coefficients corresponding to all target CSI-RS resources have been sorted.

[0152] In some embodiments, the priority of a non-zero coefficient is determined based on the following formula:

[0153]

number

[0154] where l represents the number of layers and i n represents the index of the CSI-RS port of the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, n represents the nth target CSI-RS resource, v represents the rank, M represents the number of frequency-domain basis vectors, and K 1,n represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0155] Method 2: Sort non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sort non-zero coefficients corresponding to the indices of all CSI-RS ports of all target CSI-RS resources in the same layer, where the smaller the CSI-RS port index, the higher the priority of the non-zero coefficient; sort non-zero coefficients corresponding to different frequency-domain basis vectors in the same layer, where the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficient.

[0156] In Method 2, sorting starts with the non-zero coefficient with the smallest CSI-RS port index in the first frequency-domain basis vector of the highest-priority target CSI-RS resource according to the priority order of the target CSI-RS resources, followed by sorting the non-zero coefficient with the smallest CSI-RS port index in the first frequency-domain basis vector of the second layer, and so on. After sorting the non-zero coefficients with the smallest CSI-RS port index in the first frequency-domain basis vector of all layers, sorting starts with sorting the non-zero coefficient with the next smallest CSI-RS port index in the first frequency-domain basis vector of the first layer, followed by sorting the non-zero coefficient with the next smallest CSI-RS port index in the first frequency-domain basis vector of the second layer, and so on until all non-zero CSI-RS port coefficients in the first frequency-domain basis vectors of all target CSI-RS resources have been sorted. Next, in the same manner, sort the non-zero coefficients of all empty CSI-RS ports in the second frequency-domain basis vectors of all target CSI-RS resources. After the non-zero coefficients of all CSI-RS ports of all target CSI-RS resources are sorted, interleave the non-zero coefficients of all frequency-domain basis vectors in the target CSI-RS resources, and the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient.

[0157] In some embodiments, the priority of a non-zero coefficient is determined based on the following formula:

[0158]

number

[0159] where l represents the number of layers, i=0,1,...,2K 1,tot -1,

[0160]

number

[0161] represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, v represents the rank, and K 1,tot represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, and K 1,n represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0162] Method 3: According to the priority order of the target CSI-RS resource, with a single target CSI-RS resource as the unit, sort the non-zero coefficients of all CSI-RS ports in the single target CSI-RS resource, where the smaller the CSI-RS port index, the higher the priority of the corresponding non-zero coefficient; sort the non-zero coefficients of all frequency-domain basis vectors in the single target CSI-RS resource, where the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficient; sort the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficient.

[0163] In Method 3, the target CSI-RS resources are sorted according to the priority order of the target CSI-RS resources, with each target CSI-RS resource being a unit, with the highest priority being prioritized. The non-zero coefficients with the smallest CSI-RS port index in the first frequency-domain basis vector of the first layer are sorted first, followed by the non-zero coefficients with the next smallest CSI-RS port index in the first frequency-domain basis vector of the first layer. After sorting the non-zero coefficients of all CSI-RS ports in all frequency-domain basis vectors of the first layer, the non-zero coefficients of all CSI-RS ports in all frequency-domain basis vectors of the second layer are sorted. After sorting the non-zero coefficients of all CSI-RS ports in all frequency-domain basis vectors in all layers corresponding to the highest-priority target CSI-RS resource, all frequency-domain basis vectors in all layers corresponding to the highest-priority target CSI-RS resource are sorted, with the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficient. After all non-zero coefficients in the target CSI-RS resource with the highest priority are sorted, all non-zero coefficients in the target CSI-RS resource with the next highest priority are sorted in the same manner as all non-zero coefficients in the target CSI-RS resource with the highest priority, and so on until all non-zero coefficients corresponding to all target CSI-RS resources have been sorted.

[0164] In some embodiments, the priority of a non-zero coefficient is determined based on the following formula:

[0165]

number

[0166] where l represents the number of layers and i nrepresents the index of the CSI-RS port of the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, n represents the nth target CSI-RS resource, v represents the rank, and K 1,tot represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, M represents the number of frequency-domain basis vectors, and K 1,j represents the number of CSI-RS ports selected by the terminal corresponding to the j-th CSI-RS resource, and K 1,n represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0167] Method 4: Sort the non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of the same layer according to the priority order of the target CSI-RS resources, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sort the non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; sort the non-zero coefficients corresponding to all frequency-domain basis vectors of all target CSI-RS resources of different layers, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient.

[0168] In Method 4, sorting is performed according to the priority order of the target CSI-RS resources, starting with the nonzero coefficient with the smallest CSI-RS port index in the first frequency-domain basis vector of the highest-priority target CSI-RS resource, sorting the nonzero coefficient with the smallest CSI-RS port index in the first frequency-domain basis vector of the first layer first, followed by sorting the nonzero coefficient with the next smallest CSI-RS port index in the first frequency-domain basis vector of the first layer, and after sorting the nonzero coefficients of all CSI-RS ports in all frequency-domain basis vectors of all target CSI-RS resources in the first layer, sorting the nonzero coefficients of all CSI-RS ports in all frequency-domain basis vectors of the second layer. After sorting the nonzero coefficients of all CSI-RS ports in all frequency-domain basis vectors of all target CSI-RS resources in all layers, sorting the nonzero coefficients of all frequency-domain basis vectors of all target CSI-RS resources, with the smaller the frequency-domain basis vector index, the higher the priority of the nonzero coefficient.

[0169] In some embodiments, the priority of a non-zero coefficient is determined based on the following formula:

[0170]

number

[0171] where l represents the number of layers, i=0,1,...,2K 1,tot -1,

[0172]

number

[0173] represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, v represents the rank, and K 1,tot represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, and K 1,n represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0174] In an embodiment of the present disclosure, by sorting the priorities of non-zero coefficients, if the uplink resources allocated by the network device cannot transmit all of the CSI content, some of the CSI content can be discarded while ensuring a certain system performance.

[0175] In the channel state information reporting method provided by the embodiments of the present disclosure, N target CSI-RS resources correspond to N CSIs, i.e., indication information of the N target CSI-RS resources is included in different CSIs, and one target CSI-RS resource corresponds to one CSI.

[0176] In the channel state information reporting method provided by the embodiments of the present disclosure, when CSI corresponding to N target CSI-RS resources is to be transmitted to a network device, the N CSI corresponding to the N target CSI-RS resources is transmitted to the network device based on the priority order of the N target CSI-RS resources.

[0177] For example, if N is 3 and the priority of the first target CSI-RS resource > the priority of the third target CSI-RS resource > the priority of the second target CSI-RS resource, first transmit the CSI corresponding to the first target CSI-RS resource to the network device, then transmit the CSI corresponding to the third target CSI-RS resource, and finally transmit the CSI corresponding to the second target CSI-RS resource.

[0178] In an embodiment of the present disclosure, by defining the priorities of the N target CSI-RS resources, when a terminal transmits CSI to a network device, it can transmit CSI corresponding to the N target CSI-RS resources in sequence, thereby realizing CSI reporting corresponding to multiple CSI-RS resources.

[0179] In the channel state information reporting method provided by the embodiments of the present disclosure, the indication information included in the CSI corresponding to each target CSI-RS resource and the grouping of the indication information in CSI Part 2 can refer to the information shown in Table 1 above.

[0180] In the channel state information reporting method provided by the embodiment of the present disclosure, the priority of the non-zero coefficient is determined based on Equation (1) or Equation (2), and the embodiment of the present disclosure will not be described here.

[0181] In the channel state information reporting method provided by the embodiments of the present disclosure, the priority of the target CSI-RS resource is determined based on the index of the target CSI-RS resource.

[0182] In one embodiment, the priority of the target CSI-RS resource is determined based on the following formula:

[0183]

number

[0184] where y represents an index value corresponding to different time domain operations or reporting of CSI carried on PUSCH and PUCCH, y=0, 1, 2, 3; k represents an index value corresponding to whether CSI including L1-RSRP or L1-SINR is reported, k=0, 1; c represents the index of the serving cell; s represents the CSI reporting configuration ID configured by the network device; and N cellsrepresents the maximum number of serving cells set by the network device, and M s represents the maximum number of CSI reports set by the network device, and z represents the index of the target CSI-RS resource.

[0185] In the channel state information reporting method provided by the embodiments of the present disclosure, among the N target CSI-RS resources, the reference CSI-RS resource has the highest priority, and the priorities of the remaining N-1 target CSI-RS resources are determined based on the indexes of the N-1 target CSI-RS resources.

[0186] In one embodiment, the priority of the target CSI-RS resource is determined based on the following formula:

[0187]

number

[0188] where y represents an index value corresponding to different time domain operations or reporting of CSI carried on PUSCH and PUCCH, y=0, 1, 2, 3; k represents an index value corresponding to whether CSI including L1-RSRP or L1-SINR is reported, k=0, 1; c represents the index of the serving cell; s represents the CSI reporting configuration ID configured by the network device; and N cells represents the maximum number of serving cells set by the network device, and M s represents the maximum number of CSI reports set by the network device.

[0189] Note that if the target CSI-RS resource is the reference CSI-RS resource, z is 0; if the target CSI-RS resource is not the reference CSI-RS resource, z is the index of the target CSI-RS resource.

[0190] In an embodiment of the present disclosure, by defining priorities of different target CSI-RS resources, it is possible to determine the CSI corresponding to the target CSI-RS resources in order based on the priorities, and it is also possible to determine the indication information included in the information group in Part 2 of the CSI based on the priorities.

[0191] The scheme in which N CSI-RS resources correspond to one CSI will be described in detail below in combination with the following two embodiments.

[0192] I. CSI Reporting Method Based on Rel-16 Type II Codebook Extension N for CJT to terminal by network device trp In response to the configuration of four CSI-RS resources, the number of candidate frequency domain basis vectors N3=13, and the network device instructs the terminal to adopt mode 2 and calculate precoding when multiple CSI-RS resources correspond to CJT, and the number of frequency domain basis vectors M v = 4. Based on the estimated downlink channel information, the terminal determines to select N = 2 target CSI-RS resources to perform CJT. It is assumed that the total number of combinations of spatial domain basis vectors corresponding to CSI-RS resources 1 to 4 is X1 = 3, X2 = 6, X3 = 8, and X4 = 6, resulting in a total number of combinations X = 4, and the terminal selects one of the combinations, and the first target CSI-RS resource of the combination corresponds to L1 = 2 SD basis vectors, and the second target CSI-RS resource corresponds to L2 = 4 spatial domain basis vectors. Based on the channel information estimated based on the selected target CSI-RS, the terminal determines the rank v to be transmitted as v = 2 and the maximum number of transmission layers v supported by the terminal. max = 4, the maximum number of non-zero coefficients in each layer is determined as K0 = 16, and the terminal is NZ = 32 non-zero coefficients are selected for reporting. The spatial domain oversampling factors O1 = O2 = 4, and the number of ports for each target CSI-RS resource is 2N1N2 = 8.

[0193] In one embodiment, when the terminal transmits CSI corresponding to two target CSI-RS resources to the network device, the CSI Part 1 includes the following indication information:

[0194]

number

[0195]

number

[0196]

number

[0197]

number

[0198] Indicates low priority non-zero coefficient differential amplitude quantization information and phase quantization information, where each differential amplitude is quantized with 3 bits and each phase is quantized with 4 bits.

[0199] Hereinafter, the first coefficient priority sorting method is taken as an example to perform priority sorting on the coefficients of two target CSI-RS resources. Because the index of CSI-RS resource 0 is smaller than the index of CSI-RS resource 1, the priority of CSI-RS resource 0 is higher than the priority of CSI-RS resource 1. Therefore, non-zero coefficients in CSI-RS resource 0 are prioritized for sorting. As shown in FIG. 4, first, the non-zero coefficients of the spatial-domain basis vectors in the upper-left corner of the first layer for CSI-RS resource 0 are sorted. Next, the non-zero coefficients of the spatial-domain basis vectors in the upper-left corner of the second layer are sorted. Next, the non-zero coefficients of the second spatial-domain basis vector in the first column of the first layer are sorted. Next, the non-zero coefficients of the second spatial-domain basis vector in the first column of the second layer are sorted. After all the non-zero coefficients of the spatial-domain basis vectors for CSI-RS resource 0 have been sorted in this order, the non-zero coefficients of the frequency-domain basis vectors for CSI-RS resource 0 are sorted in an interleaved manner using a pre-defined algorithm. The smaller the pre-defined value, the higher the corresponding priority. Finally, after all the coefficients of CSI-RS resource 0 have been sorted, all the coefficients of CSI-RS resource 1 are sorted. The coefficient priority sorting procedure for CSI-RS resource 1 is the same as that for CSI-RS resource 0. Note that the non-zero coefficient corresponding to CSI-RS resource 0 is higher than the non-zero coefficient corresponding to CSI-RS resource 1.

[0200] Hereinafter, the second coefficient priority sorting method is taken as an example to perform priority sorting on the coefficients of two target CSI-RS resources. Because the index of CSI-RS resource 0 is smaller than the index of CSI-RS resource 1, the priority of CSI-RS resource 0 is higher than the priority of CSI-RS resource 1. Therefore, starting from the first spatial domain basis vector for CSI-RS resource 0, as shown in FIG. 5, first sort the non-zero coefficients of the spatial domain basis vector in the upper left corner of the first layer for CSI-RS resource 0, then sort the non-zero coefficients of the spatial domain basis vector in the upper left corner of the second layer, then sort the non-zero coefficients of the second spatial domain basis vector in the first column of the first layer, then sort the non-zero coefficients of the second spatial domain basis vector in the first column of the second layer, and so on, in the order of the black arrows in FIG. 5, after all the non-zero coefficients of all the spatial domain basis vectors in the first column for CSI-RS resource 0 and CSI-RS resource 1 have been sorted, sort the non-zero coefficients corresponding to all the spatial domain basis vectors for CSI-RS resource 0 and CSI-RS resource 1 in the second column, and so on until all the non-zero coefficients of the spatial domain basis vectors for CSI-RS resource 0 and CSI-RS resource 1 have been sorted. Finally, a preset algorithm is used to sort the non-zero coefficients of the frequency domain basis vectors of CSI-RS resource 0 and CSI-RS resource 1 in an interleaved manner, and the smaller the value obtained by the preset algorithm, the higher the corresponding priority.

[0201] II. CSI Reporting Method Based on Rel-17 Type II Port Selection Codebook Extension N for terminals by network devices trpIn response to the configuration of four CSI-RS resources, the number of candidate frequency-domain basis vectors is N3=13, and the network device instructs the terminal to employ mode 2 by configuration to calculate precoding when multiple CSI-RS resources correspond to CJT, with the number of frequency-domain basis vectors being M=1. The terminal determines to select N=2 target CSI-RS resources to perform CJT based on the estimated downlink channel information. Assume that the total number of combinations of CSI-RS ports selected by the terminal corresponding to the first to fourth CSI-RS resources is X1=3, X2=6, X3=8, and X4=6, resulting in a total number of combinations X=4, and the terminal selects one combination from among them, and all CSI-RS ports corresponding to the first and second target CSI-RS resources of the combination are selected. The terminal determines the transmitted rank v=2, the maximum number of transmission layers v supported by the terminal, and the maximum number of transmission layers v supported by the terminal based on the channel information estimated based on the selected target CSI-RS. max = 4, the maximum number of non-zero coefficients in each layer is determined as K0 = 16, and the terminal is NZ = 32 non-zero coefficients are selected for reporting. The number of ports for each target CSI-RS resource is 2N1N2 = 8, and α = 1.

[0202]

number

[0203]

number

[0204]

number

[0205]

number

[0206] Here, the sorting method of the priorities of the non-zero coefficients can refer to the sorting method described in the above embodiment, and the description thereof will be omitted here.

[0207] In an embodiment of the present disclosure, a method for reporting CSI corresponding to multiple CSI-RS resources in a single CSI report, a method for grouping CSI Part 2, and a method for priority sorting of non-zero coefficients are proposed, which enable the information length of Part 1 or Part 2 to be determined, thereby reducing the complexity of detection by network devices, and priority sorting of non-zero coefficients to ensure that CSI can be discarded while ensuring a certain level of performance.

[0208] FIG. 6 is a flowchart of a channel state information reporting method according to an exemplary embodiment. As shown in FIG. 6, the channel state information reporting method is applied to a network device, and includes the following steps:

[0209] In step S21, CSI corresponding to the N target CSI-RS resources transmitted from the terminal is received.

[0210] Here, each CSI-RS resource corresponds to one TRP, and Ntrp CSI-RS resources correspond to Ntrp TRPs, that is, the network device indicates CSI-RS resources corresponding to Ntrp TRPs.

[0211] In some embodiments, the N target CSI-RS resources are CSI-RS resources among the Ntrp CSI-RS resources configured for the terminal by the network device.

[0212] In one embodiment, the terminal selects N target CSI-RS resources from among the N trp CSI-RS resources by measuring the N trp CSI-RS resources.

[0213] In another embodiment, the terminal directly adopts the Ntrp CSI-RS resources configured by the network device, i.e., N=Ntrp, in which case the terminal does not need to measure and select the Ntrp CSI-RS resources.

[0214] Note that Ntrp and N are positive integers, and 1≦N≦Ntrp.

[0215] In some embodiments, the CSI may be referred to as a CSI report.

[0216] In an embodiment of the present disclosure, when Ntrp CSI-RS resources are configured for a terminal by a network device, the terminal can determine N target CSI-RS resources from the Ntrp CSI-RS resources and send CSI corresponding to the N target CSI-RS resources to the network device, thereby realizing CSI reporting corresponding to multiple CSI-RS resources and allowing the network device to perform resource scheduling based on the CSI corresponding to the multiple CSI-RS resources.

[0217] In the channel state information reporting method provided by the embodiments of the present disclosure, N target CSI-RS resources correspond to one CSI, i.e., indication information of the N CSI-RS resources is included in the same CSI.

[0218] In the channel state information reporting method provided by the embodiment of the present disclosure, the CSI may include first information (Part 1), and the indication field size corresponding to the first information may be a fixed value, such as a preset value or a default size specified by a protocol.

[0219] In one embodiment, the first information includes at least one of a rank indication, a broadband and / or subband channel quality indication, an indication of the number of non-zero coefficients for all layers, an indication of the number of spatial domain basis vectors or ports in each polarization direction corresponding to the N target CSI-RS resources, an indication of the N target CSI-RS resources, and an indication of the reference CSI-RS resource.

[0220] In some embodiments, the first information may include broadband and / or sub-band channel quality information.

[0221] Here, one broadband may include multiple subbands, and in order to reduce overhead, the subband CQIs are indicated in a differential manner.

[0222] In one embodiment, if four bits indicate broadband CQI, two bits can indicate subband CQI.

[0223] In some embodiments, the first information may include an indication of the number of non-zero coefficients in all layers.

[0224] For example, if the maximum number of non-zero coefficients in each layer is 16 and there are two layers in total, the non-zero coefficient number indication information for all layers can be indicated by 5 bits.

[0225] In some embodiments, if the CSI reporting is based on a Rel-16 Type II codebook extension, the first information may include an indication of the number of spatial domain basis vectors in each polarization direction corresponding to the N target CSI-RS resources.If the CSI reporting is based on a Rel-16 Type II codebook extension, the first information may include an indication of the number of ports in each polarization direction corresponding to the N target CSI-RS resources.

[0226] Here, the total number of combinations of the number of spatial domain basis vectors or the number of ports corresponding to the Ntrp CSI-RS resources by the network device is

[0227]

number

[0228] In some embodiments, the first information may include N target CSI-RS resource indications.

[0229] In one embodiment, the N target CSI-RS resource indications are indicated by a bitmap.

[0230] For example, if four CSI-RS resources are configured for a terminal by a network device and the terminal selects the first and second CSI-RS resources as target CSI-RS resources, a four-bit bitmap can indicate the target CSI-RS resources selected by the terminal and the non-target CSI-RS resources that have not been selected.

[0231] In some embodiments, the first information may include reference CSI-RS resource indication information.

[0232] Here, the reference CSI-RS resource refers to the CSI-RS resource corresponding to the strongest coefficient or the CSI-RS resource indicated by the terminal.

[0233] In one embodiment, the reference CSI-RS resource may be a first CSI-RS resource predefined between the terminal and the network device, but in this case, indication information of the reference CSI-RS resource does not need to be reported via a CSI report.

[0234] In an embodiment of the present disclosure, by specifying indication information in CSI Part 1, the information length of Part 1 can be determined, thereby reducing the complexity of detection by network devices.

[0235] In the channel state information reporting method provided by the embodiment of the present disclosure, the CSI may further include second information (Part 2), and the size of Part 2 of the CSI is determined based on the information in Part 1.

[0236] In one embodiment, the second information includes at least one of: an indication of spatial domain basis vectors or selected ports; an indication of strongest coefficients for each layer; an indication of frequency domain basis vectors; an indication of a phase offset of the target CSI-RS resource relative to the reference CSI-RS resource; an indication of a start point of at least one candidate frequency domain basis vector window; an indication of non-zero coefficients; differential amplitude quantization information and phase quantization information of the non-zero coefficients; and report information of the reference amplitude indication.

[0237] In some embodiments, if the CSI reporting is based on a Rel-16 Type II codebook extension, the first information may include an indication of spatial domain basis vectors.If the CSI reporting is based on a Rel-17 Type II port selection codebook extension, the first information may include an indication of a selected port.

[0238] Here, the spatial domain basis vector indication information or the selected port indication information indicates the spatial domain basis vector or the selected port corresponding to the target CSI-RS resource selected by the terminal.

[0239] In some embodiments, the second information may include an indication of the strongest coefficient for each layer.

[0240] Here, the strongest coefficient indication information indicates the position where the strongest coefficient is located among the non-zero coefficients of each layer.

[0241] In some embodiments, the second information may include frequency domain basis vector indication information.

[0242] Here, the frequency domain basis vector indication information indicates the frequency domain basis vector corresponding to the target CSI-RS resource selected by the terminal.

[0243] In some embodiments, the second information may include a phase offset indication of the target CSI-RS resource relative to the reference CSI-RS resource.

[0244] In some embodiments, the second information may include a starting point indication for at least one candidate frequency-domain basis vector window.

[0245] For example, the network device may indicate N3 candidate frequency domain basis vectors, and the terminal may select a frequency domain basis vector for one window from the N3 candidate frequency domain basis vectors. In this case, the terminal needs to report the start position of the window.

[0246] In some embodiments, the second information may include non-zero coefficient indication information.

[0247] Here, the non-zero coefficient indication information indicates the indication information of the non-zero coefficient reported by the terminal.

[0248] In some embodiments, the second information may include differential amplitude quantization information and phase quantization information of the non-zero coefficients.

[0249] In some embodiments, the second information may include reporting information of the reference amplitude indication information.

[0250] In an embodiment of the present disclosure, when multiple CSI-RS resources correspond to the same CSI, the length of the information in Part 2 can be determined by specifying indication information in CSI Part 1, thereby reducing the complexity of detection by network devices.

[0251] In the channel state information reporting method provided by the embodiment of the present disclosure, the second information includes a plurality of information groups, and different information groups among the plurality of information groups correspond to different priorities.

[0252] In response to an inability to transmit all of the information included in the first information and the second information using the uplink resources allocated by the network device, one or more lower priority information groups in the second information are discarded.

[0253] For example, the second information includes three information groups: a first information group, a second information group, and a third information group. The priority of the three information groups is first information group > second information group > third information group. If the uplink resources allocated by the network device are not sufficient to transmit all of the information included in the first information and the second information, the third information group is discarded first. If the uplink resources are still not sufficient to transmit the information included in the first information group and the second information group in the first information and the second information, the second information group is discarded.

[0254] In an embodiment of the present disclosure, if the uplink resources allocated by a network device cannot transmit all of the CSI content, some of the CSI content is discarded while ensuring a certain system performance.

[0255] Hereinafter, when CSI is reported based on the Rel-16 Type II codebook extension, a method for grouping indication information in CSI Part 2 will be described.

[0256] Grouping Method 1: In the channel state information reporting method provided by the embodiments of the present disclosure, the second information includes at least a first information group, and the first information group includes at least one of spatial domain basis vector indication information and strongest coefficient indication information of each layer.

[0257] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a second information group, the second information group including: frequency domain basis vector indication information for one or N target CSI-RS resources; relative offset indication information for the N-1 target CSI-RS resources with respect to a reference CSI-RS resource; and a start point indication information for at least one candidate frequency domain basis vector window.

[0258]

number

[0259] and differential amplitude quantization information and phase quantization information of high priority non-zero coefficients, where N represents the target CSI-RS resource, and L n represents the number of spatial domain basis vectors in one polarization direction corresponding to the nth target CSI-RS resource, and M v represents the number of frequency domain basis vectors, and K NZ represents the number of non-zero coefficients in all layers reported by the terminal, v represents the rank, and n represents the nth target CSI-RS resource.

[0260] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a third information group, and the third information group includes:

[0261]

number

[0262] and differential amplitude quantization information and phase quantization information of low priority non-zero coefficients, where N represents the target CSI-RS resource; NZ denotes the number of non-zero coefficients reported by the terminal, and v denotes the rank.

[0263] Grouping method 2: In the channel state information reporting method provided by the embodiments of the present disclosure, the second information includes at least a first information group, and the first information group includes at least one of spatial domain basis vector indication information and strongest coefficient indication information of each layer.

[0264] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a second information group, wherein the second information group includes at least one of: frequency-domain basis vector indication information for the n1 target CSI-RS resources; relative offset indication information for the n1 target CSI-RS resources with respect to a reference CSI-RS resource; a start point indication information for at least one candidate frequency-domain basis vector window; non-zero coefficient positions indication information for the first l1 layers or non-zero coefficient positions indication information for the n1 high-priority target CSI-RS resources; reference amplitude indication information for the first l1 layers or reference amplitude indication information for the n1 target CSI-RS resources; differential amplitude quantization information and phase quantization information of the non-zero coefficients of the first l1 layers or differential amplitude quantization information and phase quantization information of the high-priority non-zero coefficients corresponding to the n1 target CSI-RS resources; where:

[0265]

number

[0266] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a third information group, and the third information group includes at least one of non-zero coefficient indication information of the v-l1 layer or non-zero coefficient indication information of the N-n1 target CSI-RS resources, and differential amplitude quantization information and phase quantization information of the non-zero coefficients of the v-l1 layer or differential amplitude quantization information and phase quantization information of low priority non-zero coefficients corresponding to the N-n1 target CSI-RS resources;

[0267]

number

[0268] In the embodiment of the present disclosure, two grouping methods of the indication information in CSI Part 2 are provided when CSI is reported based on the Rel-16 Type II codebook extension, but of course, the actual CSI reporting is not limited to the two grouping methods provided by the embodiment of the present disclosure and may be any method that meets actual needs, thereby reducing the complexity of detection by network devices by determining the information length of Part 1 or Part 2.

[0269] Hereinafter, when CSI is reported based on the Rel-17 Type II port selection codebook extension, a method for grouping indication information in CSI Part 2 will be described.

[0270] Grouping Method 1: In the channel state information reporting method provided by the embodiments of the present disclosure, the second information includes at least a first information group, and the first information group includes at least one of port selection indication information, strongest coefficient indication information for each layer, and frequency domain basis vector selection indication information.

[0271] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a second information group, the second information group including port selection indication information, relative offset indication information of the N-1 target CSI-RS resources with respect to the reference CSI-RS resource, and

[0272]

number

[0273] and differential amplitude quantization information and phase quantization information of high priority non-zero coefficients, where N represents the target CSI-RS resource, and L nrepresents the number of spatial domain basis vectors in one polarization direction corresponding to the nth target CSI-RS resource, M represents the number of frequency domain basis vectors, and K NZ denotes the number of non-zero coefficients in all layers reported by the terminal, and v denotes the rank.

[0274] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a third information group, and the third information group includes:

[0275]

number

[0276] and differential amplitude quantization information and phase quantization information of low priority non-zero coefficients, where N represents the target CSI-RS resource; NZ denotes the number of non-zero coefficients reported by the terminal, and v denotes the rank.

[0277] Grouping method 2: In the channel state information reporting method provided by the embodiments of the present disclosure, the second information includes at least a first information group, and the first information group includes at least one of port selection indication information, strongest coefficient indication information for each layer, and frequency domain basis vector selection indication information.

[0278] In the channel state information reporting method provided by the embodiments of the present disclosure, the second information further includes at least a second information group, and the second information group includes at least one of: port selection indication information; relative offset indication information of the n1−1 target CSI-RS resources with respect to a reference CSI-RS resource; non-zero coefficient position indication information of the first l1 layer or non-zero coefficient position indication information of the n1 target CSI-RS resources; reference amplitude indication information of the first l1 layer or reference amplitude indication information of the n1 target CSI-RS resources; differential amplitude quantization information and phase quantization information of non-zero coefficients of the first l1 layer or differential amplitude quantization information and phase quantization information of high priority non-zero coefficients corresponding to the n1 target CSI-RS resources;

[0279]

number

[0280] In a channel state information reporting method provided by an embodiment of the present disclosure, the second information further includes at least a third information group, and the third information group includes at least one of non-zero coefficient position indication information of the v-l1 layer or non-zero coefficient position indication information of the N-n1 target CSI-RS resources, and differential amplitude quantization information and phase quantization information of the non-zero coefficients of the v-l1 layer or differential amplitude quantization information and phase quantization information of low priority non-zero coefficients corresponding to the N-n1 target CSI-RS resources;

[0281]

number

[0282] In the embodiments of the present disclosure, two grouping methods of the indication information in CSI Part 2 are provided when CSI is reported based on the Rel-17 Type II port selection codebook extension. Of course, the actual CSI reporting is not limited to the two grouping methods provided by the embodiments of the present disclosure, and may be any method that meets actual needs. This allows the length of the information in Part 1 or Part 2 to be determined, thereby reducing the complexity of detection by network devices.

[0283] In the above embodiment, different groups in CSI Part 2 are associated with high-priority and low-priority non-zero coefficients, and the method for determining the priorities of the non-zero coefficients will be described below.

[0284] In the channel state information reporting method provided by the embodiments of the present disclosure, when CSI is reported based on the Rel-16 Type II codebook extension, the priority of the non-zero coefficients is determined based on one of the following methods:

[0285] Method 1: According to the priority order of the target CSI-RS resource, with a single target CSI-RS resource as a unit, sort non-zero coefficients at the same position of the same target CSI-RS resource in different layers, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sort non-zero coefficients corresponding to all spatial domain basis vectors of the same target CSI-RS resource in the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficient; interleave non-zero coefficients corresponding to all frequency domain basis vectors of the same layer based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient.

[0286]

number

[0287] In Method 1, the target CSI-RS resources are sorted according to the priority order of the target CSI-RS resources, with each target CSI-RS resource being a unit, with the highest priority target CSI-RS resource being prioritized. The non-zero coefficients with the smallest spatial domain basis vector indices in the first frequency domain basis vectors of the first layer are sorted first, followed by the non-zero coefficients with the smallest spatial domain basis vector indices in the first frequency domain basis vectors of the second layer, and so on. After the non-zero coefficients with the smallest spatial domain basis vector indices in the first frequency domain basis vectors of all layers have been sorted, the non-zero coefficients with the next smallest spatial domain basis vector indices in the first frequency domain basis vectors of the first layer are sorted, followed by the non-zero coefficients with the next smallest spatial domain basis vector indices in the first frequency domain basis vectors of the second layer, and so on until all the non-zero coefficients corresponding to the spatial domain basis vectors of the highest priority target CSI-RS resources have been sorted. Next, the non-zero coefficients of all frequency-domain basis vectors in the target CSI-RS resource with the highest priority are interleaved based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient corresponding to the frequency-domain basis vector. After all non-zero coefficients in the target CSI-RS resource with the highest priority have been sorted, all non-zero coefficients in the target CSI-RS resource with the next highest priority are sorted in the same manner as all non-zero coefficients in the target CSI-RS resource with the highest priority, and so on until all non-zero coefficients corresponding to all target CSI-RS resources have been sorted.

[0288]

number

[0289] where l represents the number of layers and i nrepresents the index of the spatial domain basis vector of the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, n represents the nth target CSI-RS resource, and L j represents the number of spatial domain basis vectors in one polarization direction corresponding to the jth CSI-RS resource, v represents the rank, and M v represents the number of frequency domain basis vectors, and L n represents the number of spatial domain basis vectors in one polarization direction corresponding to the nth CSI-RS resource,

[0290]

number

[0291] Method 2: Sort non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sort non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources in the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficient; and interleave non-zero coefficients corresponding to different frequency domain basis vectors in the same layer based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient.

[0292]

number

[0293] In Method 2, sorting is performed according to the priority order of the target CSI-RS resources, starting with the nonzero coefficient with the smallest spatial domain basis vector index in the first frequency domain basis vector of the highest-priority target CSI-RS resource, followed by the nonzero coefficient with the smallest spatial domain basis vector index in the first frequency domain basis vector of the second layer, and so on. After the nonzero coefficients with the smallest spatial domain basis vector index in the first frequency domain basis vector of all layers have been sorted, the nonzero coefficient with the next smallest spatial domain basis vector index in the first frequency domain basis vector of the first layer is sorted, followed by the nonzero coefficient with the next smallest spatial domain basis vector index in the first frequency domain basis vector of the second layer, and so on until all nonzero spatial domain basis vectors in the first frequency domain basis vectors of all target CSI-RS resources have been sorted. Next, in the same manner, the non-zero coefficients of all spatial domain basis vectors in the second frequency domain basis vectors of all target CSI-RS resources are sorted. After the non-zero coefficients of all spatial domain basis vectors of all target CSI-RS resources are sorted, the non-zero coefficients of all frequency domain basis vectors in the target CSI-RS resources are interleaved based on a preset algorithm, and the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient corresponding to the frequency domain basis vector.

[0294]

number

[0295] where l represents the number of layers, i=0,1,...,2L tot-1 and

[0296]

number

[0297] Method 3: According to the priority order of the target CSI-RS resource, with a single target CSI-RS resource as a unit, sort the non-zero coefficients of all spatial domain basis vectors in the single target CSI-RS resource, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; sort the non-zero coefficients of all frequency domain basis vectors in the single target CSI-RS resource based on a pre-set algorithm, where the smaller the value according to the pre-set algorithm, the higher the priority of the non-zero coefficient; sort the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficient.

[0298]

number

[0299] In Method 3, the highest-priority target CSI-RS resource among the target CSI-RS resources is sorted preferentially for each target CSI-RS resource according to the priority order of the target CSI-RS resources. The non-zero coefficients of the spatial domain basis vectors with the smallest index in the first frequency-domain basis vectors of the first layer are sorted first, followed by the non-zero coefficients of the spatial domain basis vectors with the next smallest index in the first frequency-domain basis vectors of the first layer. After the non-zero coefficients of all spatial domain basis vectors in all frequency-domain basis vectors of the first layer have been sorted, the non-zero coefficients of all spatial domain basis vectors in all frequency-domain basis vectors of the second layer are sorted. After the non-zero coefficients of all spatial domain basis vectors in all frequency-domain basis vectors in all layers corresponding to the highest-priority target CSI-RS resource have been sorted, all frequency-domain basis vectors in all layers corresponding to the highest-priority target CSI-RS resource are interleaved based on a preset algorithm, where the smaller the value obtained by the preset algorithm, the higher the priority of the non-zero coefficient corresponding to the frequency-domain basis vector. After all non-zero coefficients in the target CSI-RS resource with the highest priority are sorted, all non-zero coefficients in the target CSI-RS resource with the next highest priority are sorted in the same manner as all non-zero coefficients in the target CSI-RS resource with the highest priority, and so on until all non-zero coefficients corresponding to all target CSI-RS resources have been sorted.

[0300]

number

[0301]

number

[0302] Method 4: Sort the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources in the same layer according to the priority order of the target CSI-RS resources, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; interleave the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources in different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; interleave the non-zero coefficients corresponding to all frequency domain basis vectors of all target CSI-RS resources in different layers based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient.

[0303]

number

[0304] In Method 4, sorting is performed according to the priority order of the target CSI-RS resources, starting with the nonzero coefficient with the smallest spatial domain basis vector index in the first frequency domain basis vector of the highest-priority target CSI-RS resource, sorting the nonzero coefficient with the smallest spatial domain basis vector index in the first frequency domain basis vector of the first layer first, then sorting the nonzero coefficient with the next smallest spatial domain basis vector index in the first frequency domain basis vector of the first layer, and after sorting the nonzero coefficients of all spatial domain basis vectors in all frequency domain basis vectors of all target CSI-RS resources of the first layer, sorting the nonzero coefficients of all spatial domain basis vectors in all frequency domain basis vectors of the second layer. After sorting the nonzero coefficients of all spatial domain basis vectors in all frequency domain basis vectors of all target CSI-RS resources in all layers, interleaving the nonzero coefficients of all frequency domain basis vectors of all target CSI-RS resources based on a preset algorithm, where the smaller the value of the preset algorithm, the higher the priority of the nonzero coefficient corresponding to the frequency domain basis vector.

[0305]

number

[0306] where l represents the number of layers, i=0,1,...,2L tot-1 and

[0307]

number

[0308] In an embodiment of the present disclosure, by sorting the priorities of non-zero coefficients, if the uplink resources allocated by a network device cannot transmit all of the CSI content, some of the CSI content can be discarded while ensuring a certain system performance.

[0309] In the channel state information reporting method provided by the embodiments of the present disclosure, when CSI is reported based on the Rel-17 Type II port selection codebook extension, the priority of the non-zero coefficients is determined based on one of the following methods:

[0310] Method 1: According to the priority order of the target CSI-RS resource, sort non-zero coefficients at the same position of the same target CSI-RS resource in different layers, taking a single target CSI-RS resource as a unit, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sort non-zero coefficients corresponding to the indices of all CSI-RS ports of the same target CSI-RS resource in the same layer, where the smaller the CSI-RS port index, the higher the priority of the non-zero coefficient; sort non-zero coefficients corresponding to all frequency-domain basis vectors of the same layer, where the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficient.

[0311] In Method 1, the target CSI-RS resources are sorted according to the priority order of the target CSI-RS resources, with the highest priority target CSI-RS resource being the unit of a single target CSI-RS resource. The non-zero coefficient with the smallest CSI-RS port index in the first frequency-domain basis vector of the first layer is sorted first, followed by the non-zero coefficient with the smallest CSI-RS port index in the first frequency-domain basis vector of the second layer, and so on. After the non-zero coefficients with the smallest CSI-RS port index in the first frequency-domain basis vector of all layers have been sorted, the non-zero coefficient with the next smallest CSI-RS port index in the first frequency-domain basis vector of the first layer is sorted, followed by the non-zero coefficient with the next smallest CSI-RS port index in the first frequency-domain basis vector of the second layer, and so on until all the non-zero coefficients corresponding to the CSI-RS ports in the highest-priority target CSI-RS resource have been sorted. Next, the non-zero coefficients of all frequency-domain basis vectors in the target CSI-RS resource with the highest priority are interleaved, and the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient corresponding to the frequency-domain basis vector. After all non-zero coefficients in the target CSI-RS resource with the highest priority have been sorted, all non-zero coefficients in the target CSI-RS resource with the next highest priority are sorted in the same manner as all non-zero coefficients in the target CSI-RS resource with the highest priority, and so on until all non-zero coefficients corresponding to all target CSI-RS resources have been sorted.

[0312]

number

[0313] where l represents the number of layers and i nrepresents the index of the CSI-RS port of the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, n represents the nth target CSI-RS resource, v represents the rank, M represents the number of frequency-domain basis vectors, and K 1,n represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0314] Method 2: Sort non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sort non-zero coefficients corresponding to the indices of all CSI-RS ports of all target CSI-RS resources in the same layer, where the smaller the CSI-RS port index, the higher the priority of the non-zero coefficient; sort non-zero coefficients corresponding to different frequency-domain basis vectors in the same layer, where the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficient.

[0315] In Method 2, sorting starts with the non-zero coefficient with the smallest CSI-RS port index in the first frequency-domain basis vector of the highest-priority target CSI-RS resource according to the priority order of the target CSI-RS resources, followed by sorting the non-zero coefficient with the smallest CSI-RS port index in the first frequency-domain basis vector of the second layer, and so on. After sorting the non-zero coefficients with the smallest CSI-RS port index in the first frequency-domain basis vector of all layers, sorting starts with sorting the non-zero coefficient with the next smallest CSI-RS port index in the first frequency-domain basis vector of the first layer, followed by sorting the non-zero coefficient with the next smallest CSI-RS port index in the first frequency-domain basis vector of the second layer, and so on until all non-zero CSI-RS port coefficients in the first frequency-domain basis vectors of all target CSI-RS resources have been sorted. Next, in the same manner, sort the non-zero coefficients of all empty CSI-RS ports in the second frequency-domain basis vectors of all target CSI-RS resources. After the non-zero coefficients of all CSI-RS ports of all target CSI-RS resources are sorted, interleave the non-zero coefficients of all frequency-domain basis vectors in the target CSI-RS resources, and the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient.

[0316]

number

[0317] where l represents the number of layers, i=0,1,...,2K 1,tot-1 and

[0318]

number

[0319] represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, v represents the rank, and K 1,tot represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, and K 1,n represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0320] Method 3: According to the priority order of the target CSI-RS resource, with a single target CSI-RS resource as the unit, sort the non-zero coefficients of all CSI-RS ports in the single target CSI-RS resource, where the smaller the CSI-RS port index, the higher the priority of the corresponding non-zero coefficient; sort the non-zero coefficients of all frequency-domain basis vectors in the single target CSI-RS resource, where the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficient; sort the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficient.

[0321] In Method 3, the target CSI-RS resources are sorted according to the priority order of the target CSI-RS resources, with each target CSI-RS resource being a unit, with the highest priority being prioritized. The non-zero coefficients with the smallest CSI-RS port index in the first frequency-domain basis vector of the first layer are sorted first, followed by the non-zero coefficients with the next smallest CSI-RS port index in the first frequency-domain basis vector of the first layer. After sorting the non-zero coefficients of all CSI-RS ports in all frequency-domain basis vectors of the first layer, the non-zero coefficients of all CSI-RS ports in all frequency-domain basis vectors of the second layer are sorted. After sorting the non-zero coefficients of all CSI-RS ports in all frequency-domain basis vectors in all layers corresponding to the highest-priority target CSI-RS resource, all frequency-domain basis vectors in all layers corresponding to the highest-priority target CSI-RS resource are sorted, with the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficient. After all non-zero coefficients in the target CSI-RS resource with the highest priority are sorted, all non-zero coefficients in the target CSI-RS resource with the next highest priority are sorted in the same manner as all non-zero coefficients in the target CSI-RS resource with the highest priority, and so on until all non-zero coefficients corresponding to all target CSI-RS resources have been sorted.

[0322]

number

[0323] where l represents the number of layers and i n represents the index of the CSI-RS port of the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, n represents the nth target CSI-RS resource, v represents the rank, and K 1,totrepresents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, M represents the number of frequency-domain basis vectors, and K 1,j represents the number of CSI-RS ports selected by the terminal corresponding to the j-th CSI-RS resource, and K 1,n represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0324] Method 4: Sort the non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of the same layer according to the priority order of the target CSI-RS resources, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sort the non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; sort the non-zero coefficients corresponding to all frequency-domain basis vectors of all target CSI-RS resources of different layers, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient.

[0325] In Method 4, sorting is performed according to the priority order of the target CSI-RS resources, starting with the nonzero coefficient with the smallest CSI-RS port index in the first frequency-domain basis vector of the highest-priority target CSI-RS resource, sorting the nonzero coefficient with the smallest CSI-RS port index in the first frequency-domain basis vector of the first layer first, followed by sorting the nonzero coefficient with the next smallest CSI-RS port index in the first frequency-domain basis vector of the first layer, and after sorting the nonzero coefficients of all CSI-RS ports in all frequency-domain basis vectors of all target CSI-RS resources in the first layer, sorting the nonzero coefficients of all CSI-RS ports in all frequency-domain basis vectors of the second layer. After sorting the nonzero coefficients of all CSI-RS ports in all frequency-domain basis vectors of all target CSI-RS resources in all layers, sorting the nonzero coefficients of all frequency-domain basis vectors of all target CSI-RS resources, with the smaller the frequency-domain basis vector index, the higher the priority of the nonzero coefficient.

[0326]

number

[0327] where l represents the number of layers, i=0,1,...,2K 1,tot-1 and

[0328]

number

[0329] represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, v represents the rank, and K 1,tot represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, and K1,n represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0330] In an embodiment of the present disclosure, by sorting the priorities of non-zero coefficients, if the uplink resources allocated by a network device cannot transmit all of the CSI content, some of the CSI content can be discarded while ensuring a certain system performance.

[0331] In the channel state information reporting method provided by the embodiments of the present disclosure, N target CSI-RS resources correspond to N CSIs, i.e., indication information of the N target CSI-RS resources is included in different CSIs, and one target CSI-RS resource corresponds to one CSI.

[0332] In the channel state information reporting method provided by the embodiments of the present disclosure, when CSI corresponding to N target CSI-RS resources is to be transmitted to a network device, the N CSI corresponding to the N target CSI-RS resources is transmitted to the network device based on the priority order of the N target CSI-RS resources.

[0333] For example, if N is 3 and the priority of the first target CSI-RS resource > the priority of the third target CSI-RS resource > the priority of the second target CSI-RS resource, first transmit the CSI corresponding to the first target CSI-RS resource to the network device, then transmit the CSI corresponding to the third target CSI-RS resource, and finally transmit the CSI corresponding to the second target CSI-RS resource.

[0334] In an embodiment of the present disclosure, by defining the priorities of the N target CSI-RS resources, when a terminal transmits CSI to a network device, it can transmit CSI corresponding to the N target CSI-RS resources in sequence, thereby realizing CSI reporting corresponding to multiple CSI-RS resources.

[0335] In the channel state information reporting method provided by the embodiments of the present disclosure, the indication information included in the CSI corresponding to each target CSI-RS resource and the grouping of the indication information in CSI Part 2 can refer to the information shown in Table 1 above.

[0336] In the channel state information reporting method provided by the embodiment of the present disclosure, the priority of the non-zero coefficient is determined based on Equation (1) or Equation (2), and the embodiment of the present disclosure will not be described here.

[0337] In the channel state information reporting method provided by the embodiments of the present disclosure, the priority of the target CSI-RS resource is determined based on the index of the target CSI-RS resource.

[0338]

number

[0339] where y represents an index value corresponding to different time domain operations or reporting of CSI carried on PUSCH and PUCCH, y=0, 1, 2, 3; k represents an index value corresponding to whether CSI including L1-RSRP or L1-SINR is reported, k=0, 1; c represents the index of the serving cell; s represents the CSI reporting configuration ID configured by the network device; and N cells represents the maximum number of serving cells set by the network device, and M s represents the maximum number of CSI reports set by the network device, and z represents the index of the target CSI-RS resource.

[0340] In the channel state information reporting method provided by the embodiments of the present disclosure, among the N target CSI-RS resources, the reference CSI-RS resource has the highest priority, and the priorities of the remaining N-1 target CSI-RS resources are determined based on the indexes of the N-1 target CSI-RS resources.

[0341]

number

[0342] where y represents an index value corresponding to different time domain operations or reporting of CSI carried on PUSCH and PUCCH, y=0, 1, 2, 3; k represents an index value corresponding to whether CSI including L1-RSRP or L1-SINR is reported, k=0, 1; c represents the index of the serving cell; s represents the CSI reporting configuration ID configured by the network device; and N cells represents the maximum number of serving cells set by the network device, and M s represents the maximum number of CSI reports set by the network device.

[0343] Note that if the target CSI-RS resource is the reference CSI-RS resource, z is 0; if the target CSI-RS resource is not the reference CSI-RS resource, z is the index of the target CSI-RS resource.

[0344] In an embodiment of the present disclosure, by defining priorities of different target CSI-RS resources, it is possible to determine the CSI corresponding to the target CSI-RS resources in order based on the priorities, and it is also possible to determine the indication information included in the information group in Part 2 of the CSI based on the priorities.

[0345] It should be understood by those skilled in the art that the above-described various embodiments / examples of the present disclosure may be used in combination with the previously described examples or independently. Whether used independently or in combination with the previously described examples, the principles of implementation are the same. In the present disclosure, some examples are described as examples of jointly used embodiments. Of course, those skilled in the art will understand that such exemplary descriptions do not limit the embodiments of the present disclosure.

[0346] Based on the same concept, an embodiment of the present disclosure further provides a channel state information reporting device.

[0347] It should be noted that the channel state information reporting device provided by the embodiments of the present disclosure includes corresponding hardware structures and / or software modules for performing each function to realize the above functions. In combination with the units and algorithm steps of each example disclosed in the embodiments of the present disclosure, the embodiments of the present disclosure can be realized in the form of hardware or a combination of hardware and computer software. Whether a function is performed in the form of hardware or in the form of computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may realize the described functions using different methods for each specific application, but this realization should not exceed the scope of the technical solution of the embodiments of the present disclosure.

[0348] 7 is a block diagram of a channel state information reporting device according to an exemplary embodiment. Referring to FIG. 7, the device includes a determining module 101 and a sending module 102. The device 100 is applied in a terminal.

[0349] The determination module 101, in response to Ntrp channel state information reference signal (CSI-RS) resources being configured for the terminal by the network device, determines N target CSI-RS resources from the Ntrp CSI-RS resources, where Ntrp and N are positive integers, and 1≦N≦Ntrp; The transmission module 102 transmits channel state information (CSI) corresponding to the N target CSI-RS resources to a network device.

[0350] In one embodiment, the N target CSI-RS resources correspond to one CSI, and the CSI includes first information, the first information including at least one of rank indication information, broadband and / or subband channel quality information, indication information for the number of non-zero coefficients of all layers, indication information for the number of spatial domain basis vectors or ports in each polarization direction corresponding to the N target CSI-RS resources, indication information for the N target CSI-RS resources, and indication information for a reference CSI-RS resource, wherein the reference CSI-RS resource represents the CSI-RS resource corresponding to the strongest coefficient, or the CSI-RS resource indicated by the terminal, or the first CSI-RS resource pre-defined between the terminal and the network device.

[0351] In one embodiment, the CSI further includes second information, the second information including a plurality of information groups, different information groups among the plurality of information groups corresponding to different priorities, and in response to an inability to transmit all of the information included in the first information and the second information using uplink resources allocated by the network device, discarding one or more information groups with lower priorities in the second information.

[0352] In one embodiment, the second information includes at least a first information group, the first information group including at least one of spatial domain basis vector indication information and strongest coefficient indication information for each layer.

[0353]

number

[0354]

number

[0355] In one embodiment, the second information includes at least a fourth information group, and the fourth information group includes at least one of port selection instruction information, strongest coefficient instruction information for each layer, and frequency domain basis vector selection instruction information.

[0356]

number

[0357]

number

[0358] In one embodiment, the priority of the non-zero coefficients may be determined by: sorting non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, with a single target CSI-RS resource as a unit, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to all spatial domain basis vectors of the same target CSI-RS resource in the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficient; interleaving non-zero coefficients corresponding to all frequency domain basis vectors of the same layer based on a preset algorithm, where the smaller the value of the preset algorithm, the higher the priority of the non-zero coefficient; or sorting non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficient; the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficient; interleaving the non-zero coefficients corresponding to different frequency domain basis vectors of the same layer based on a pre-configured algorithm, where the smaller the value according to the pre-configured algorithm, the higher the priority of the non-zero coefficient; or sorting the non-zero coefficients of all spatial domain basis vectors in the single target CSI-RS resource as a unit, based on a priority order of the target CSI-RS resource, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients of all frequency domain basis vectors in the single target CSI-RS resource based on a pre-configured algorithm, where the smaller the value according to the pre-configured algorithm, the higher the priority of the non-zero coefficient; sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficient; or sorting the non-zero coefficients of all layers in the single target CSI-RS resource, based on a pre-configured algorithm, where the smaller the number of layers, the higher the non-zero coefficient;the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of the same layer are sorted, and the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of different layers are interleaved, and the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; and the non-zero coefficients corresponding to all frequency domain basis vectors of all target CSI-RS resources of different layers are interleaved based on a preset algorithm, and the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient.

[0359] In one embodiment, in response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers in units of a single target CSI-RS resource according to a priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to all spatial domain basis vectors of the same target CSI-RS resource of the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficients; and interleaving non-zero coefficients corresponding to all frequency domain basis vectors of the same layer based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficients.

[0360]

number

[0361] In one embodiment, in response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers according to a priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficients; and interleaving non-zero coefficients corresponding to different frequency domain basis vectors of the same layer based on a predetermined rule, where the smaller the value according to the predetermined algorithm, the higher the priority of the non-zero coefficients.

[0362]

number

[0363] In one embodiment, in response to the priority of the non-zero coefficients being determined based on: sorting the non-zero coefficients of all spatial domain basis vectors in the single target CSI-RS resource in units of a single target CSI-RS resource according to a priority order of the target CSI-RS resource, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; interleaving the non-zero coefficients of all frequency domain basis vectors in the single target CSI-RS resource based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient; and sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficients.

[0364]

number

[0365] In one embodiment, in response to the priority of the non-zero coefficients being determined based on: sorting the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of the same layer according to a priority order of the target CSI-RS resources, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; and interleaving the non-zero coefficients corresponding to all frequency domain basis vectors of all target CSI-RS resources of different layers based on a predetermined algorithm, where the smaller the value according to the predetermined algorithm, the higher the priority of the non-zero coefficient.

[0366]

number

[0367] In one embodiment, the priority of the non-zero coefficients may be determined by sorting non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, with a single target CSI-RS resource as a unit, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to the indices of all CSI-RS ports of the same target CSI-RS resource in the same layer, where the smaller the CSI-RS port index, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to all frequency-domain basis vectors of the same layer, where the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficients; or sorting non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to the indices of all CSI-RS ports of all target CSI-RS resources in the same layer, where the smaller the CSI-RS port index, the higher the priority of the non-zero coefficients. sorting the non-zero coefficients corresponding to different frequency-domain basis vectors of the same layer, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient; or sorting the non-zero coefficients of all CSI-RS ports in a single target CSI-RS resource in accordance with the priority order of the target CSI-RS resource, with a single target CSI-RS resource as a unit, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients of all frequency-domain basis vectors in the single target CSI-RS resource, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient; sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficients; or sorting the non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of the same layer in accordance with the priority order of the target CSI-RS resource, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient;The method is determined based on one of the following: sorting non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of different layers, where the smaller the layer number, the higher the priority of the corresponding non-zero coefficient; sorting non-zero coefficients corresponding to all frequency-domain basis vectors of all target CSI-RS resources of different layers, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient;

[0368] In one embodiment, in response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers in units of a single target CSI-RS resource according to a priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to indices of all CSI-RS ports of the same target CSI-RS resource of the same layer, where the smaller the CSI-RS port index, the higher the priority of the non-zero coefficients; and sorting non-zero coefficients corresponding to all frequency-domain basis vectors of the same layer, where the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficients;

[0369]

number

[0370] where l represents the number of layers and i n represents the index of the CSI-RS port of the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, n represents the nth target CSI-RS resource, v represents the rank, M represents the number of frequency-domain basis vectors, and K 1,n represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0371] In one embodiment, in response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers according to a priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to indices of all CSI-RS ports of all target CSI-RS resources of the same layer, where the smaller the CSI-RS port indices, the higher the priority of the non-zero coefficients; and sorting non-zero coefficients corresponding to different frequency-domain basis vectors of the same layer, where the smaller the frequency-domain basis vector indices, the higher the priority of the non-zero coefficients;

[0372]

number

[0373] In one embodiment, in response to the priority of the non-zero coefficients being determined based on sorting the non-zero coefficients of all CSI-RS ports in the single target CSI-RS resource in units of a single target CSI-RS resource according to a priority order of the target CSI-RS resource, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients of all frequency-domain basis vectors in the single target CSI-RS resource, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient; and sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficients;

[0374]

number

[0375] It is determined based on the formula where l represents the number of layers and i nrepresents the index of the CSI-RS port of the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, n represents the nth target CSI-RS resource, v represents the rank, and K 1,tot represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, M represents the number of frequency-domain basis vectors, and K 1,j represents the number of CSI-RS ports selected by the terminal corresponding to the j-th CSI-RS resource, and K 1,n represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0376] In one embodiment, in response to the priority of the non-zero coefficients being determined based on: sorting the non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of the same layer according to a priority order of the target CSI-RS resources, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; and sorting the non-zero coefficients corresponding to all frequency-domain basis vectors of all target CSI-RS resources of different layers, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient.

[0377]

number

[0378] represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, v represents the rank, and K 1,tot represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, and K 1,nrepresents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0379] In one embodiment, the N target CSI-RS resources correspond to the N CSIs, and the N target CSI-RS resources have priorities, and the transmission module transmits the N CSIs corresponding to the N target CSI-RS resources to the network device based on a priority order of the N target CSI-RS resources.

[0380] In one embodiment, the priorities of the N target CSI-RS resources are determined based on the indexes of the target CSI-RS resources.

[0381] In one embodiment, among the N target CSI-RS resources, the reference CSI-RS resource has the highest priority, and the priorities of the remaining N-1 target CSI-RS resources are determined based on the indexes of the N-1 target CSI-RS resources.

[0382] 8 is a block diagram of a channel state information reporting device according to an exemplary embodiment. Referring to FIG. 8, the device includes a receiving module 201. The device 200 is applied to a network device.

[0383] The receiving module 201 receives channel state information (CSI) corresponding to N target CSI-RS resources transmitted from the terminal in response to Ntrp channel state information reference signal (CSI-RS) resources being configured for the terminal by the network device, where Ntrp and N are positive integers and 1≦N≦Ntrp.

[0384] In one embodiment, the N target CSI-RS resources correspond to one CSI, and the CSI includes first information, the first information including at least one of rank indication information, broadband and / or subband channel quality information, indication information for the number of non-zero coefficients of all layers, indication information for the number of spatial domain basis vectors or ports in each polarization direction corresponding to the N target CSI-RS resources, indication information for the N target CSI-RS resources, and indication information for a reference CSI-RS resource, wherein the reference CSI-RS resource represents the CSI-RS resource corresponding to the strongest coefficient, or the CSI-RS resource indicated by the terminal, or the first CSI-RS resource pre-defined between the terminal and the network device.

[0385] In one embodiment, the CSI further includes second information, the second information including a plurality of information groups, different information groups among the plurality of information groups corresponding to different priorities, and in response to an inability to transmit all of the information included in the first information and the second information using uplink resources allocated by the network device, discarding one or more information groups with lower priorities in the second information.

[0386] In one embodiment, the second information includes at least a first information group, the first information group including at least one of spatial domain basis vector indication information and strongest coefficient indication information for each layer.

[0387] In one embodiment, the second information further includes at least a second information group, the second information group including: indication of frequency-domain basis vectors of one, N, or n1 target CSI-RS resources; indication of relative offsets of the N-1, or n1-1, target CSI-RS resources with respect to a reference CSI-RS resource; and indication of a start point of at least one candidate frequency-domain basis vector window.

[0388]

number

[0389]

number

[0390] In one embodiment, the second information includes at least a first information group, and the first information group includes at least one of port selection instruction information, strongest coefficient instruction information for each layer, and frequency domain basis vector selection instruction information.

[0391]

number

[0392]

number

[0393] In one embodiment, the priority of the non-zero coefficients may be determined by: sorting non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, with a single target CSI-RS resource as a unit, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to all spatial domain basis vectors of the same target CSI-RS resource in the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficient; interleaving non-zero coefficients corresponding to all frequency domain basis vectors of the same layer based on a preset algorithm, where the smaller the value of the preset algorithm, the higher the priority of the non-zero coefficient; or sorting non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficient; the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficient; interleaving the non-zero coefficients corresponding to different frequency domain basis vectors of the same layer based on a pre-configured algorithm, where the smaller the value according to the pre-configured algorithm, the higher the priority of the non-zero coefficient; or sorting the non-zero coefficients of all spatial domain basis vectors in the single target CSI-RS resource as a unit, based on a priority order of the target CSI-RS resource, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients of all frequency domain basis vectors in the single target CSI-RS resource based on a pre-configured algorithm, where the smaller the value according to the pre-configured algorithm, the higher the priority of the non-zero coefficient; sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficient; or sorting the non-zero coefficients of all layers in the single target CSI-RS resource, based on a pre-configured algorithm, where the smaller the number of layers, the higher the non-zero coefficient;the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of the same layer are sorted, and the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of different layers are interleaved, and the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; and the non-zero coefficients corresponding to all frequency domain basis vectors of all target CSI-RS resources of different layers are interleaved based on a preset algorithm, and the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient.

[0394] In one embodiment, in response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers in units of a single target CSI-RS resource according to a priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to all spatial domain basis vectors of the same target CSI-RS resource of the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficients; and interleaving non-zero coefficients corresponding to all frequency domain basis vectors of the same layer based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficients.

[0395]

number

[0396] In one embodiment, in response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers according to a priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficients; and interleaving non-zero coefficients corresponding to different frequency domain basis vectors of the same layer based on a predetermined rule, where the smaller the value according to the predetermined algorithm, the higher the priority of the non-zero coefficients.

[0397]

number

[0398] In one embodiment, in response to the priority of the non-zero coefficients being determined based on: sorting the non-zero coefficients of all spatial domain basis vectors in the single target CSI-RS resource in units of a single target CSI-RS resource according to a priority order of the target CSI-RS resource, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; interleaving the non-zero coefficients of all frequency domain basis vectors in the single target CSI-RS resource based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient; and sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficients.

[0399]

number

[0400] In one embodiment, in response to the priority of the non-zero coefficients being determined based on: sorting the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of the same layer according to a priority order of the target CSI-RS resources, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; and interleaving the non-zero coefficients corresponding to all frequency domain basis vectors of all target CSI-RS resources of different layers based on a predetermined algorithm, where the smaller the value according to the predetermined algorithm, the higher the priority of the non-zero coefficient.

[0401]

number

[0402] In one embodiment, the priority of the non-zero coefficients may be determined by sorting non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, with a single target CSI-RS resource as a unit, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to the indices of all CSI-RS ports of the same target CSI-RS resource in the same layer, where the smaller the CSI-RS port index, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to all frequency-domain basis vectors of the same layer, where the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficients; or sorting non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to the indices of all CSI-RS ports of all target CSI-RS resources in the same layer, where the smaller the CSI-RS port index, the higher the priority of the non-zero coefficients. sorting the non-zero coefficients corresponding to different frequency-domain basis vectors of the same layer, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient; or sorting the non-zero coefficients of all CSI-RS ports in a single target CSI-RS resource in accordance with the priority order of the target CSI-RS resource, with a single target CSI-RS resource as a unit, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients of all frequency-domain basis vectors in the single target CSI-RS resource, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient; sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficients; or sorting the non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of the same layer in accordance with the priority order of the target CSI-RS resource, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient;The method is determined based on one of the following: sorting non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of different layers, where the smaller the layer number, the higher the priority of the corresponding non-zero coefficient; sorting non-zero coefficients corresponding to all frequency-domain basis vectors of all target CSI-RS resources of different layers, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient;

[0403] In one embodiment, in response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers in units of a single target CSI-RS resource according to a priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to indices of all CSI-RS ports of the same target CSI-RS resource of the same layer, where the smaller the CSI-RS port index, the higher the priority of the non-zero coefficients; and sorting non-zero coefficients corresponding to all frequency-domain basis vectors of the same layer, where the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficients;

[0404]

number

[0405] where l represents the number of layers and i n represents the index of the CSI-RS port of the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, n represents the nth target CSI-RS resource, v represents the rank, M represents the number of frequency-domain basis vectors, and K 1,n represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0406] In one embodiment, in response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers according to a priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to indices of all CSI-RS ports of all target CSI-RS resources of the same layer, where the smaller the CSI-RS port indices, the higher the priority of the non-zero coefficients; and sorting non-zero coefficients corresponding to different frequency-domain basis vectors of the same layer, where the smaller the frequency-domain basis vector indices, the higher the priority of the non-zero coefficients;

[0407]

number

[0408] represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, v represents the rank, and K 1,tot represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, and K 1,n represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0409] In one embodiment, in response to the priority of the non-zero coefficients being determined based on sorting the non-zero coefficients of all CSI-RS ports in the single target CSI-RS resource in units of a single target CSI-RS resource according to a priority order of the target CSI-RS resource, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients of all frequency-domain basis vectors in the single target CSI-RS resource, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient; and sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficients;

[0410]

number

[0411] where l represents the number of layers and i n represents the index of the CSI-RS port of the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, n represents the nth target CSI-RS resource, v represents the rank, and K 1,tot represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, M represents the number of frequency-domain basis vectors, and K 1,j represents the number of CSI-RS ports selected by the terminal corresponding to the j-th CSI-RS resource, and K 1,n represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0412] In one embodiment, in response to the priority of the non-zero coefficients being determined based on: sorting the non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of the same layer according to a priority order of the target CSI-RS resources, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; and sorting the non-zero coefficients corresponding to all frequency-domain basis vectors of all target CSI-RS resources of different layers, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient.

[0413]

number

[0414] represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, v represents the rank, and K 1,tot represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, and K 1,n represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource.

[0415] In one embodiment, the N target CSI-RS resources correspond to the N CSIs, and the N target CSI-RS resources have priorities, and the receiving module 201 receives the N CSIs corresponding to the N target CSI-RS resources transmitted from the terminal to the network device based on the priority order of the N target CSI-RS resources.

[0416] In one embodiment, the priorities of the N target CSI-RS resources are determined based on the indexes of the target CSI-RS resources.

[0417] In one embodiment, among the N target CSI-RS resources, the reference CSI-RS resource has the highest priority, and the priorities of the remaining N-1 target CSI-RS resources are determined based on the indexes of the N-1 target CSI-RS resources.

[0418] Regarding the apparatus in the above embodiment, the specific method by which each module performs an operation is described in detail in the embodiment relating to the method, but will not be described in detail here.

[0419] 9 is a block diagram of a channel state information reporting device according to an exemplary embodiment. For example, the device 300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0420] Referring to FIG. 9, the device 300 may include one or more of a processing component 302, a memory 304, a power component 306, a multimedia component 308, an audio component 310, an input / output (I / O) interface 312, a sensor component 314, and a communication component 316.

[0421] The processing component 302 typically controls the overall operation of the device 300, such as operations related to display, phone calls, data communication, camera operation, and recording operations. The processing component 302 may include one or more processors 320 that execute instructions to complete all or some of the steps in the above-described method embodiments. The processing component 302 may also include one or more modules to facilitate interaction between the processing component 302 and other units. For example, the processing component 302 may include a multimedia module to facilitate interaction between the multimedia component 308 and the processing component 302.

[0422] Memory 304 is configured to store various types of data to support operation on device 300. Examples of this data include instructions for any application programs or methods for operating on device 300, contact data, phone book data, messages, pictures, videos, etc. Memory 304 can be implemented by any type of volatile or non-volatile storage device, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, disk, or optical disk, or a combination thereof.

[0423] The power component 306 provides power to the various units of the device 300. The power component 306 may include a power management system, one or more power sources, and other units associated with the generation, management, and distribution of power for the device 300.

[0424] The multimedia component 308 includes a screen that provides an output interface between the device 300 and a user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). When the screen includes a touch panel, the screen can be implemented as a touch screen for receiving input signals from a user. The touch panel includes one or more touch sensors that detect touch and slide gestures on the touch panel. The touch sensors can detect the boundaries of the touch or slide motion as well as the duration and pressure of the touch or slide operation. In some embodiments, the multimedia component 308 includes a front camera and / or a rear camera. When the device 300 is in an operation mode, such as a photo mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each of the front camera and the rear camera may be a fixed optical lens system or may have a focal length and optical zoom function.

[0425] The audio component 310 is configured to output and / or input audio signals. For example, the audio component 310 includes a microphone (MIC). The microphone is configured to receive external audio signals when the device 300 is in an operation mode, such as a call mode, a recording mode, or a voice recognition mode. The received audio signals are further stored in the memory 304 or transmitted via the communication component 316. In some embodiments, the audio component 310 further includes a speaker for outputting audio signals.

[0426] The I / O interface 312 provides an interface between the processing component 302 and a peripheral interface module, which may be a keyboard, a click wheel, buttons, etc. These buttons include, but are not limited to, a home button, volume buttons, a start button, and a lock button.

[0427] The sensor component 314 includes one or more sensors that provide various status assessments to the device 300. For example, the sensor component 314 can detect the on / off state of the device 300 and the relative positioning of units, such as the display and keypad of the device 300. The sensor component 314 can also detect changes in the position of the device 300 or a unit of the device 300, whether or not a user is in contact with the device 300, the orientation or acceleration / deceleration of the device 300, and temperature changes of the device 300. The sensor component 314 can include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor component 314 can also include an optical sensor, such as a CMOS or CCD image sensor used for imaging applications. In some embodiments, the sensor component 314 can include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0428] The communication component 316 is configured to facilitate wired or wireless communication between the device 300 and other devices. The device 300 may access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 316 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 316 further includes a near-field communication (NFC) module for facilitating short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0429] In an exemplary embodiment, the apparatus 300 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic units for performing the above methods.

[0430] In an exemplary embodiment, a non-transitory computer-readable storage medium containing instructions, such as a memory 304 containing instructions, is also provided, which can be executed by the processor 320 of the apparatus 300 to perform the method. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0431] FIG. 10 is a block diagram of a channel state information reporting apparatus according to an exemplary embodiment. For example, apparatus 400 may be provided as a network device. Referring to FIG. 10, apparatus 400 includes a processing component 422 including one or more processors and a memory resource represented by memory 432 for storing instructions executable by processing component 422, such as an application. The application stored in memory 432 may include one or more modules, each corresponding to a set of instructions. Furthermore, processing component 422 is configured to execute the instructions to perform the above-described method.

[0432] The device 400 further includes a power component 426 configured to perform power management of the device 400, a wired or wireless network interface 450 configured to connect the device 400 to a network, and an input / output (I / O) interface 458. The device 400 is capable of executing an operating system stored in memory 432, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or the like.

[0433] In an exemplary embodiment, a non-transitory computer-readable storage medium containing instructions is further provided, such as a memory 432 containing instructions, which may be executed by the processing component 422 of the apparatus 400 to complete the above-described methods. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0434] In this disclosure, "plurality" means two or more, and other counter classes have similar meanings. "And / or" describes a relationship between related objects and can indicate that three relationships may exist. For example, a statement such as A and / or B can indicate three situations: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " typically indicates that the related objects before and after it are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural, unless the context clearly indicates otherwise.

[0435] Furthermore, terms such as "in response to," "when," and the like, used in the present disclosure may vary depending on the context and circumstances in which they are used; for example, "in response to," as used herein, may be understood as "when," or "when," or "if," or "or."

[0436] Furthermore, while terms such as "first" and "second" describe various pieces of information, these pieces of information should not be limited to these terms. These terms are used merely to distinguish between pieces of information of the same type and do not imply a particular order or importance. In fact, terms such as "first" and "second" can be used interchangeably. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information, without departing from the scope of this disclosure.

[0437] Although embodiments of the present disclosure illustrate operations in a particular order in the figures, it should not be understood that these operations must be performed in the particular order shown, or in any serial order, or that all operations must be performed to achieve desired results. In certain environments, multitasking and parallel processing may be advantageous.

[0438] Those skilled in the art will readily appreciate other embodiments of the present disclosure after studying the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present invention, which variations, uses, or adaptations follow the general principles of the present invention and include common general knowledge or customary technical means in the art that are not disclosed in the present disclosure.

[0439] It should be understood that the present invention is not limited to the exact construction described above and illustrated in the drawings, and that various modifications and variations can be made without departing from the scope of the present invention, which is limited only by the appended claims.

Claims

1. A channel state information reporting method applied to a terminal, comprising: In response to Ntrp channel state information reference signal (CSI-RS) resources being configured for the terminal by a network device, determining N target CSI-RS resources from the Ntrp CSI-RS resources, where Ntrp and N are positive integers and 1≦N≦Ntrp; transmitting channel state information (CSI) corresponding to the N target CSI-RS resources to the network device. A method for reporting channel state information, comprising:

2. The N target CSI-RS resources correspond to one CSI, and the CSI includes first information; The first information is rank indication information; broadband and / or sub-band channel quality information; Indication of the number of non-zero coefficients in all layers; Indication of the number of spatial domain basis vectors or ports in each polarization direction corresponding to the N target CSI-RS resources; N target CSI-RS resource indications; Reference CSI-RS resource indication information; The reference CSI-RS resource represents a CSI-RS resource corresponding to the strongest coefficient, or a CSI-RS resource indicated by a terminal, or a first CSI-RS resource pre-defined between the terminal and the network device. The method for reporting channel state information according to claim 1 .

3. The CSI further includes second information, the second information includes a plurality of information groups, and different information groups among the plurality of information groups correspond to different priorities; discarding one or more information groups of lower priority in the second information in response to an inability to transmit all of the information included in the first information and the second information using uplink resources allocated by the network device; The method for reporting channel state information according to claim 2 .

4. the second information includes at least a first information group; The first information group spatial domain basis vector indication information; and strongest coefficient indication information for each layer. The method for reporting channel state information according to claim 3 .

5. the second information further includes at least a second information group; The second information group is 1 or N or n １ Frequency domain basis vector indication information for the target CSI-RS resources; N-1 or n １ - a relative offset indication of one target CSI-RS resource with respect to a reference CSI-RS resource; a starting point indication for at least one candidate frequency domain basis vector window; [Equation 1] 1 bit of high priority non-zero coefficient position indication information, or the first l １ Non-zero coefficient position indication information of the layer, or n １ non-zero coefficient location indication information of the target CSI-RS resources; One or 2N-1 reference amplitude indications, or the first １ Reference amplitude indication information of the layer, or n １ Reference amplitude indication information for the target CSI-RS resources; [Equation 2] differential amplitude quantization information and phase quantization information of the highest priority non-zero coefficients, or the first l １ Differential amplitude quantization information and phase quantization information of non-zero coefficients of the layer, or n １ and differential amplitude quantization information and phase quantization information of non-zero coefficients corresponding to the target CSI-RS resources; N represents the target CSI-RS resource; [Equation 3] and K ＮＺ represents the number of non-zero coefficients in all layers reported by the terminal, v represents the rank, and M ｖ represents the number of frequency domain basis vectors, and L ｎ represents the number of spatial domain basis vectors in one polarization direction corresponding to the nth target CSI-RS resource, and n represents the nth target CSI-RS resource; The method for reporting channel state information according to claim 4 .

6. the second information further includes at least a third information group; The third information group is [Equation 4] bit low priority non-zero coefficient indication, or v−l １ Non-zero coefficient indication information of the layer, or N-n １ non-zero coefficient indications of the target CSI-RS resources; [Equation 5] differential amplitude quantization information and phase quantization information of the low priority non-zero coefficients, or v−l １ Differential amplitude quantization information and phase quantization information of non-zero coefficients of the layer, or N-n １ and differential amplitude quantization information and phase quantization information of non-zero coefficients corresponding to the target CSI-RS resources; N represents the target CSI-RS resource; [Equation 6] and K ＮＺ represents the number of non-zero coefficients in all layers reported by the terminal, and v represents the rank. The method for reporting channel state information according to claim 5 .

7. the second information includes at least a fourth information group; The fourth information group is port selection instruction information; The strongest coefficient indication information for each layer, and frequency domain basis vector selection indication information; The method for reporting channel state information according to claim 3 .

8. the second information further includes at least a fifth information group; The fifth information group is port selection instruction information; N-1 or n １ - a relative offset indication of one target CSI-RS resource with respect to a reference CSI-RS resource; [Equation 7] 1 bit of high priority non-zero coefficient position indication information, or the first l １ Non-zero coefficient position indication information of the layer, or n １ non-zero coefficient location indication information of the target CSI-RS resources; One or 2N-1 reference amplitude indications, or the first １ Reference amplitude indication information of the layer, or n １ Reference amplitude indication information for the target CSI-RS resources; [Equation 8] differential amplitude quantization information and phase quantization information of the highest priority non-zero coefficients, or the first l １ Differential amplitude quantization information and phase quantization information of non-zero coefficients of the layer, or n １ and differential amplitude quantization information and phase quantization information of non-zero coefficients corresponding to the target CSI-RS resources; N represents the target CSI-RS resource; [Equation 9] and K ＮＺ represents the number of non-zero coefficients of all layers reported by the terminal, v represents the rank, M represents the number of frequency-domain basis vectors, and L ｎ represents the number of CSI-RS ports in one polarization direction corresponding to the nth target CSI-RS resource, and n represents the nth target CSI-RS resource; The method for reporting channel state information according to claim 7 .

9. the second information further includes at least a sixth information group; The sixth information group is [Equation 10] bit low-priority non-zero coefficient position indication information, or v−l １ Non-zero coefficient position indication information of the layer, or N-n １ non-zero coefficient location indication information of the target CSI-RS resources; [0011] differential amplitude quantization information and phase quantization information of the low priority non-zero coefficients, or v−l １ Differential amplitude quantization information and phase quantization information of non-zero coefficients of the layer, or N-n １ and differential amplitude quantization information and phase quantization information of non-zero coefficients corresponding to the target CSI-RS resources; N represents the target CSI-RS resource; [0012] and K ＮＺ represents the number of non-zero coefficients in all layers reported by the terminal, and v represents the rank. The method for reporting channel state information according to claim 8 .

10. The priority of the non-zero coefficients is sorting non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, with a single target CSI-RS resource as a unit, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to all spatial domain basis vectors of the same target CSI-RS resource in the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficient; interleaving non-zero coefficients corresponding to all frequency domain basis vectors of the same layer based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient; or sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers according to the priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficient; interleaving non-zero coefficients corresponding to different frequency domain basis vectors of the same layer based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient; or sorting the non-zero coefficients of all spatial domain basis vectors in the single target CSI-RS resource according to the priority order of the target CSI-RS resource, with each single target CSI-RS resource as a unit, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients of all frequency domain basis vectors in the single target CSI-RS resource based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient; sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficient; or sorting the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of the same layer according to the priority order of the target CSI-RS resources, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; interleaving the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; interleaving the non-zero coefficients corresponding to all frequency domain basis vectors of all target CSI-RS resources of different layers based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient; determined based on one of The method for reporting channel state information according to claim 6 .

11. In response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers in units of a single target CSI-RS resource according to a priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to all spatial domain basis vectors of the same target CSI-RS resource of the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficient; and interleaving non-zero coefficients corresponding to all frequency domain basis vectors of the same layer based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient; [0013] It is determined based on the formula l represents the number of layers, and i ｎ represents the index of the spatial domain basis vector of the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, n represents the nth target CSI-RS resource, and L ｊ represents the number of spatial domain basis vectors in one polarization direction corresponding to the jth CSI-RS resource, v represents the rank, and M ｖ represents the number of frequency domain basis vectors, and L ｎ represents the number of spatial domain basis vectors in one polarization direction corresponding to the nth CSI-RS resource; [0014] is the frequency domain basis vector index f of N ３ represents the index mapped to N ３ represents the number of candidate frequency domain basis vectors, The method for reporting channel state information according to claim 10 .

12. In response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers according to a priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficients; and interleaving non-zero coefficients corresponding to different frequency domain basis vectors of the same layer based on a preset rule, where the smaller the value according to a preset algorithm, the higher the priority of the non-zero coefficients. [Equation 15] It is determined based on the formula l represents the number of layers, i=0, 1,...,2L ｔｏｔ -1, [0016] represents the total number of spatial domain basis vectors in one polarization direction corresponding to N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, and v represents the rank; [Equation 17] is the frequency domain basis vector index f of N ３ represents the index mapped to N ３ represents the number of candidate frequency domain basis vectors, The method for reporting channel state information according to claim 10 .

13. In response to the priority of the non-zero coefficients being determined based on sorting the non-zero coefficients of all spatial domain basis vectors in the single target CSI-RS resource in units of a single target CSI-RS resource according to a priority order of the target CSI-RS resource, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; interleaving the non-zero coefficients of all frequency domain basis vectors in the single target CSI-RS resource based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient; and sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficients; [Equation 18] It is determined based on the formula l represents the number of layers, and i ｎ represents the index of the spatial domain basis vector of the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, [Equation 19] represents the total number of spatial domain basis vectors in one polarization direction corresponding to N CSI-RS resources, n represents the nth target CSI-RS resource, and L ｊ represents the number of spatial domain basis vectors in one polarization direction corresponding to the jth CSI-RS resource, v represents the rank, and M ｖ represents the number of frequency domain basis vectors, and L ｎ represents the number of spatial domain basis vectors in one polarization direction corresponding to the nth CSI-RS resource; [Equation 20] is the frequency domain basis vector index f of N ３ represents the index mapped to N ３ represents the number of candidate frequency domain basis vectors, The method for reporting channel state information according to claim 10 .

14. In response to the priority of the non-zero coefficients being determined based on sorting the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of the same layer according to a priority order of the target CSI-RS resources, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; and interleaving the non-zero coefficients corresponding to all frequency domain basis vectors of all target CSI-RS resources of different layers based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient. [Equation 21] It is determined based on the formula l represents the number of layers, i=0, 1,...,2L ｔｏｔ -1, [Equation 22] represents the total number of spatial domain basis vectors in one polarization direction corresponding to N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, and v represents the rank; [Equation 23] is the frequency domain basis vector index f of N ３ represents the index mapped to N ３ represents the number of candidate frequency domain basis vectors, The method for reporting channel state information according to claim 10 .

15. The priority of the non-zero coefficients is sorting non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, with a single target CSI-RS resource as a unit, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to the indexes of all CSI-RS ports of the same target CSI-RS resource in the same layer, where the smaller the CSI-RS port index, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to all frequency-domain basis vectors of the same layer, where the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficient; or sorting non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to the indices of all CSI-RS ports of all target CSI-RS resources in the same layer, where the smaller the CSI-RS port indices, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to different frequency-domain basis vectors in the same layer, where the smaller the frequency-domain basis vector indices, the higher the priority of the non-zero coefficient; or According to the priority order of the target CSI-RS resource, with the single target CSI-RS resource as a unit, sorting the non-zero coefficients of all CSI-RS ports in the single target CSI-RS resource, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients of all frequency-domain basis vectors in the single target CSI-RS resource, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient; sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficient; or sorting the non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of the same layer according to the priority order of the target CSI-RS resources, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients corresponding to all frequency-domain basis vectors of all target CSI-RS resources of different layers, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient; determined based on one of The method for reporting channel state information according to claim 9 .

16. In response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers in units of a single target CSI-RS resource according to the priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to indexes of all CSI-RS ports of the same target CSI-RS resource of the same layer, where the smaller the CSI-RS port index, the higher the priority of the non-zero coefficients; and sorting non-zero coefficients corresponding to all frequency-domain basis vectors of the same layer, where the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficients; [0000] It is determined based on the formula l represents the number of layers, and i ｎ represents the index of the CSI-RS port of the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, n represents the nth target CSI-RS resource, v represents the rank, M represents the number of frequency-domain basis vectors, and K １，ｎ represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource; The method of claim 15, wherein the method is for reporting channel state information.

17. In response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers according to a priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to indices of all CSI-RS ports of all target CSI-RS resources of the same layer, where the smaller the CSI-RS port indices, the higher the priority of the non-zero coefficients; and sorting non-zero coefficients corresponding to different frequency-domain basis vectors of the same layer, where the smaller the frequency-domain basis vector indices, the higher the priority of the non-zero coefficients; [Equation 25] It is determined based on the formula l represents the number of layers, i=0, 1,...,2K １，ｔｏｔ -1, [Equation 26] represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, v represents the rank, and K １，ｔｏｔ represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, and K １，ｎ represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource; The method of claim 15, wherein the method is for reporting channel state information.

18. In response to the priority of the non-zero coefficients being determined based on sorting the non-zero coefficients of all CSI-RS ports in the single target CSI-RS resource in units of a single target CSI-RS resource according to the priority order of the target CSI-RS resource, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients of all frequency-domain basis vectors in the single target CSI-RS resource, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient; and sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficients; [0000] It is determined based on the formula l represents the number of layers, and i ｎ represents the index of the CSI-RS port of the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, n represents the nth target CSI-RS resource, v represents the rank, and K １，ｔｏｔ represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, M represents the number of frequency-domain basis vectors, and K １，ｊ represents the number of CSI-RS ports selected by the terminal corresponding to the j-th CSI-RS resource, and K １，ｎ represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource; The method of claim 15, wherein the method is for reporting channel state information.

19. In response to the priorities of the non-zero coefficients being determined based on sorting non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of the same layer according to a priority order of the target CSI-RS resources, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sorting non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; and sorting non-zero coefficients corresponding to all frequency-domain basis vectors of all target CSI-RS resources of different layers, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient; [0000] It is determined based on the formula l represents the number of layers, i=0, 1,...,2K １，ｔｏｔ -1, [0000] represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, v represents the rank, and K １，ｔｏｔ represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, and K １，ｎ represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource; The method of claim 15, wherein the method is for reporting channel state information.

20. the N target CSI-RS resources correspond to N CSIs, and the N target CSI-RS resources have priorities; transmitting channel state information (CSI) corresponding to the N target CSI-RS resources to the network device, transmitting N CSIs corresponding to the N target CSI-RS resources to the network device based on a priority order of the N target CSI-RS resources; The method for reporting channel state information according to claim 1 .

21. determining the priorities of the N target CSI-RS resources based on indexes of the target CSI-RS resources; The method for reporting channel state information according to any one of claims 10 to 20.

22. Among the N target CSI-RS resources, a reference CSI-RS resource has the highest priority, and priorities of the remaining N-1 target CSI-RS resources are determined based on indexes of the N-1 target CSI-RS resources. The method for reporting channel state information according to any one of claims 10 to 20.

23. A channel state information reporting method applied to a network device, comprising: receiving channel state information (CSI) corresponding to N target channel state information reference signal (CSI-RS) resources transmitted from a terminal; The N target CSI-RS resources are CSI-RS resources among Ntrp CSI-RS resources configured for the terminal by the network device, where Ntrp and N are positive integers, and 1≦N≦Ntrp; A method for reporting channel state information, comprising:

24. The N target CSI-RS resources correspond to one CSI, and the CSI includes first information; The first information is rank indication information; broadband and / or sub-band channel quality information; Indication of the number of non-zero coefficients in all layers; Indication of the number of spatial domain basis vectors or ports in each polarization direction corresponding to the N target CSI-RS resources; N target CSI-RS resource indications; Reference CSI-RS resource indication information; The reference CSI-RS resource represents a CSI-RS resource corresponding to the strongest coefficient, or a CSI-RS resource indicated by a terminal, or a first CSI-RS resource pre-defined between the terminal and the network device. The method of claim 23, wherein the method is a method for reporting channel state information.

25. The CSI further includes second information, the second information includes a plurality of information groups, and different information groups among the plurality of information groups correspond to different priorities; discarding one or more information groups of lower priority in the second information in response to an inability to transmit all of the information included in the first information and the second information using uplink resources allocated by the network device; 25. The method of claim 24, wherein the method is a method for reporting channel state information.

26. the second information includes at least a first information group; The first information group spatial domain basis vector indication information; and strongest coefficient indication information for each layer.

26. The method of claim 25, wherein the method is a method for reporting channel state information.

27. the second information further includes at least a second information group; The second information group is 1 or N or n １ Frequency domain basis vector indication information for the target CSI-RS resources; N-1 or n １ - a relative offset indication of one target CSI-RS resource with respect to a reference CSI-RS resource; a starting point indication for at least one candidate frequency domain basis vector window; [Equation 30] 1 bit of high priority non-zero coefficient position indication information, or the first l １ Non-zero coefficient position indication information of the layer, or n １ non-zero coefficient location indication information of the target CSI-RS resources; One or 2N-1 reference amplitude indications, or the first １ Reference amplitude indication information of the layer, or n １ Reference amplitude indication information for the target CSI-RS resources; [Equation 31] differential amplitude quantization information and phase quantization information of the highest priority non-zero coefficients, or the first l １ Differential amplitude quantization information and phase quantization information of non-zero coefficients of the layer, or n １ and differential amplitude quantization information and phase quantization information of non-zero coefficients corresponding to the target CSI-RS resources; N represents the target CSI-RS resource; [Equation 32] and K ＮＺ represents the number of non-zero coefficients in all layers reported by the terminal, v represents the rank, and M ｖ represents the number of frequency domain basis vectors, and L ｎ represents the number of spatial domain basis vectors in one polarization direction corresponding to the nth target CSI-RS resource, and n represents the nth target CSI-RS resource; 27. The method of claim 26, wherein the method is for reporting channel state information.

28. the second information further includes at least a third information group; The third information group is [Equation 33] bit low priority non-zero coefficient indication, or v−l １ Non-zero coefficient indication information of the layer, or N-n １ non-zero coefficient indications of the target CSI-RS resources; [Equation 34] differential amplitude quantization information and phase quantization information of the low priority non-zero coefficients, or v−l １ Differential amplitude quantization information and phase quantization information of non-zero coefficients of the layer, or N-n １ and differential amplitude quantization information and phase quantization information of non-zero coefficients corresponding to the target CSI-RS resources; N represents the target CSI-RS resource; [Equation 35] and K ＮＺ represents the number of non-zero coefficients in all layers reported by the terminal, and v represents the rank.

28. The method of claim 27, wherein the method is a method for reporting channel state information.

29. the second information includes at least a fourth information group; The fourth information group is port selection instruction information; The strongest coefficient indication information for each layer, and frequency domain basis vector selection indication information; 26. The method of claim 25, wherein the method is a method for reporting channel state information.

30. the second information further includes at least a fifth information group; The fifth information group is port selection instruction information; N-1 or n １ - a relative offset indication of one target CSI-RS resource with respect to a reference CSI-RS resource; [Equation 36] 1 bit of high priority non-zero coefficient position indication information, or the first l １ Non-zero coefficient position indication information of the layer, or n １ non-zero coefficient location indication information of the target CSI-RS resources; One or 2N-1 reference amplitude indications, or the first １ Reference amplitude indication information of the layer, or n １ Reference amplitude indication information for the target CSI-RS resources; [Equation 37] differential amplitude quantization information and phase quantization information of the highest priority non-zero coefficients, or the first l １ Differential amplitude quantization information and phase quantization information of non-zero coefficients of the layer, or n １ and differential amplitude quantization information and phase quantization information of non-zero coefficients corresponding to the target CSI-RS resources; N represents the target CSI-RS resource; [Equation 38] and K ＮＺ represents the number of non-zero coefficients of all layers reported by the terminal, v represents the rank, M represents the number of frequency-domain basis vectors, and L ｎ represents the number of CSI-RS ports in one polarization direction corresponding to the nth target CSI-RS resource, and n represents the nth target CSI-RS resource; 30. The method of claim 29, wherein the method is a method for reporting channel state information.

31. the second information further includes at least a sixth information group; The sixth information group is [Number 39] bit low-priority non-zero coefficient position indication information, or v−l １ Non-zero coefficient position indication information of the layer, or N-n １ non-zero coefficient location indication information of the target CSI-RS resources; [Equation 40] differential amplitude quantization information and phase quantization information of the low priority non-zero coefficients, or v−l １ Differential amplitude quantization information and phase quantization information of non-zero coefficients of the layer, or N-n １ and differential amplitude quantization information and phase quantization information of non-zero coefficients corresponding to the target CSI-RS resources; N represents the target CSI-RS resource; [Equation 41] and K ＮＺ represents the number of non-zero coefficients in all layers reported by the terminal, and v represents the rank.

31. The method of claim 30, wherein the method is for reporting channel state information.

32. The priority of the non-zero coefficients is sorting non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, with a single target CSI-RS resource as a unit, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to all spatial domain basis vectors of the same target CSI-RS resource in the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficient; interleaving non-zero coefficients corresponding to all frequency domain basis vectors of the same layer based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient; or sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers according to the priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficient; interleaving non-zero coefficients corresponding to different frequency domain basis vectors of the same layer based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient; or sorting the non-zero coefficients of all spatial domain basis vectors in the single target CSI-RS resource according to the priority order of the target CSI-RS resource, with each single target CSI-RS resource as a unit, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients of all frequency domain basis vectors in the single target CSI-RS resource based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient; sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficient; or sorting the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of the same layer according to the priority order of the target CSI-RS resources, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; interleaving the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; interleaving the non-zero coefficients corresponding to all frequency domain basis vectors of all target CSI-RS resources of different layers based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient; determined based on one of 29. The method of claim 28, wherein the method is for reporting channel state information.

33. In response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers in units of a single target CSI-RS resource according to a priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to all spatial domain basis vectors of the same target CSI-RS resource of the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficient; and interleaving non-zero coefficients corresponding to all frequency domain basis vectors of the same layer based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient; [Equation 42] It is determined based on the formula l represents the number of layers, and i ｎ represents the index of the spatial domain basis vector of the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, n represents the nth target CSI-RS resource, and L ｊ represents the number of spatial domain basis vectors in one polarization direction corresponding to the jth CSI-RS resource, v represents the rank, and M ｖ represents the number of frequency domain basis vectors, and L ｎ represents the number of spatial domain basis vectors in one polarization direction corresponding to the nth CSI-RS resource; [Equation 43] is the frequency domain basis vector index f of N ３ represents the index mapped to N ３ represents the number of candidate frequency domain basis vectors, 33. The method of claim 32, wherein the method is a method for reporting channel state information.

34. In response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers according to a priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of the same layer, where the smaller the index of the spatial domain basis vector, the higher the priority of the non-zero coefficients; and interleaving non-zero coefficients corresponding to different frequency domain basis vectors of the same layer based on a preset rule, where the smaller the value according to a preset algorithm, the higher the priority of the non-zero coefficients. [Equation 44] It is determined based on the formula l represents the number of layers, i=0, 1,...,2L ｔｏｔ -1, [Equation 45] represents the total number of spatial domain basis vectors in one polarization direction corresponding to N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, and v represents the rank; [Equation 46] is the frequency domain basis vector index f of N ３ represents the index mapped to N ３ represents the number of candidate frequency domain basis vectors, 33. The method of claim 32, wherein the method is a method for reporting channel state information.

35. In response to the priority of the non-zero coefficients being determined based on sorting the non-zero coefficients of all spatial domain basis vectors in the single target CSI-RS resource in units of a single target CSI-RS resource according to a priority order of the target CSI-RS resource, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; interleaving the non-zero coefficients of all frequency domain basis vectors in the single target CSI-RS resource based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient; and sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficients; [Equation 47] It is determined based on the formula l represents the number of layers, and i ｎ represents the index of the spatial domain basis vector of the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, [Number 48] represents the total number of spatial domain basis vectors in one polarization direction corresponding to N CSI-RS resources, n represents the nth target CSI-RS resource, and L ｊ represents the number of spatial domain basis vectors in one polarization direction corresponding to the jth CSI-RS resource, v represents the rank, and M ｖ represents the number of frequency domain basis vectors, and L ｎ represents the number of spatial domain basis vectors in one polarization direction corresponding to the nth CSI-RS resource; [Number 49] is the frequency domain basis vector index f of N ３ represents the index mapped to N ３ represents the number of candidate frequency domain basis vectors, 33. The method of claim 32, wherein the method is a method for reporting channel state information.

36. In response to the priority of the non-zero coefficients being determined based on sorting the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of the same layer according to a priority order of the target CSI-RS resources, where the smaller the index of the spatial domain basis vector, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients corresponding to all spatial domain basis vectors of all target CSI-RS resources of different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; and interleaving the non-zero coefficients corresponding to all frequency domain basis vectors of all target CSI-RS resources of different layers based on a preset algorithm, where the smaller the value according to the preset algorithm, the higher the priority of the non-zero coefficient. [Number 50] It is determined based on the formula l represents the number of layers, i=0, 1,...,2L ｔｏｔ -1, [0.51] represents the total number of spatial domain basis vectors in one polarization direction corresponding to N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, and v represents the rank; [Number 52] is the frequency domain basis vector index f of N ３ represents the index mapped to N ３ represents the number of candidate frequency domain basis vectors, 32. The method of claim 31, wherein the method is a method for reporting channel state information.

37. The priority of the non-zero coefficients is sorting non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, with a single target CSI-RS resource as a unit, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to the indexes of all CSI-RS ports of the same target CSI-RS resource in the same layer, where the smaller the CSI-RS port index, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to all frequency-domain basis vectors of the same layer, where the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficient; or sorting non-zero coefficients at the same position of the same target CSI-RS resource in different layers according to the priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to the indices of all CSI-RS ports of all target CSI-RS resources in the same layer, where the smaller the CSI-RS port indices, the higher the priority of the non-zero coefficient; sorting non-zero coefficients corresponding to different frequency-domain basis vectors in the same layer, where the smaller the frequency-domain basis vector indices, the higher the priority of the non-zero coefficient; or According to the priority order of the target CSI-RS resource, with the single target CSI-RS resource as a unit, sorting the non-zero coefficients of all CSI-RS ports in the single target CSI-RS resource, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients of all frequency-domain basis vectors in the single target CSI-RS resource, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient; sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficient; or sorting the non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of the same layer according to the priority order of the target CSI-RS resources, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients corresponding to all frequency-domain basis vectors of all target CSI-RS resources of different layers, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient; determined based on one of 32. The method of claim 31, wherein the method is a method for reporting channel state information.

38. In response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers in units of a single target CSI-RS resource according to the priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to indexes of all CSI-RS ports of the same target CSI-RS resource of the same layer, where the smaller the CSI-RS port index, the higher the priority of the non-zero coefficients; and sorting non-zero coefficients corresponding to all frequency-domain basis vectors of the same layer, where the smaller the frequency-domain basis vector index, the higher the priority of the non-zero coefficients; [Number 53] It is determined based on the formula l represents the number of layers, and i ｎ represents the index of the CSI-RS port of the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, n represents the nth target CSI-RS resource, v represents the rank, M represents the number of frequency-domain basis vectors, and K １，ｎ represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource; 38. The method of claim 37, wherein the method is for reporting channel state information.

39. In response to the priority of the non-zero coefficients being determined based on sorting non-zero coefficients at the same position of the same target CSI-RS resource of different layers according to a priority order of the target CSI-RS resource, where the smaller the number of layers, the higher the priority of the non-zero coefficients; sorting non-zero coefficients corresponding to indices of all CSI-RS ports of all target CSI-RS resources of the same layer, where the smaller the CSI-RS port indices, the higher the priority of the non-zero coefficients; and sorting non-zero coefficients corresponding to different frequency-domain basis vectors of the same layer, where the smaller the frequency-domain basis vector indices, the higher the priority of the non-zero coefficients; [Number 54] It is determined based on the formula l represents the number of layers, i=0, 1,...,2K １，ｔｏｔ -1, [Number 55] represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, v represents the rank, and K １，ｔｏｔ represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, and K １，ｎ represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource; 38. The method of claim 37, wherein the method is a method for reporting channel state information.

40. In response to the priority of the non-zero coefficients being determined based on sorting the non-zero coefficients of all CSI-RS ports in the single target CSI-RS resource in units of a single target CSI-RS resource according to the priority order of the target CSI-RS resource, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sorting the non-zero coefficients of all frequency-domain basis vectors in the single target CSI-RS resource, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient; and sorting the non-zero coefficients of all layers in the single target CSI-RS resource, where the smaller the number of layers, the higher the non-zero coefficients; [Number 56] It is determined based on the formula l represents the number of layers, and i ｎ represents the index of the CSI-RS port of the nth target CSI-RS resource, f represents the index of the frequency domain basis vector, n represents the nth target CSI-RS resource, v represents the rank, and K １，ｔｏｔ represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, M represents the number of frequency-domain basis vectors, and K １，ｊ represents the number of CSI-RS ports selected by the terminal corresponding to the j-th CSI-RS resource, and K １，ｎ represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource; 38. The method of claim 37, wherein the method is a method for reporting channel state information.

41. In response to the priorities of the non-zero coefficients being determined based on sorting non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of the same layer according to a priority order of the target CSI-RS resources, where the smaller the index of the CSI-RS port, the higher the priority of the corresponding non-zero coefficient; sorting non-zero coefficients corresponding to all CSI-RS ports of all target CSI-RS resources of different layers, where the smaller the number of layers, the higher the priority of the corresponding non-zero coefficient; and sorting non-zero coefficients corresponding to all frequency-domain basis vectors of all target CSI-RS resources of different layers, where the smaller the index of the frequency-domain basis vector, the higher the priority of the non-zero coefficient; [Number 57] It is determined based on the formula l represents the number of layers, i=0, 1,...,2K １，ｔｏｔ -1, [Number 58] represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, n represents the nth target CSI-RS resource, f represents the index of the frequency-domain basis vector, v represents the rank, and K １，ｔｏｔ represents the total number of CSI-RS ports selected by the terminal corresponding to the N CSI-RS resources, and K １，ｎ represents the number of CSI-RS ports selected by the terminal corresponding to the Nth CSI-RS resource; 38. The method of claim 37, wherein the method is a method for reporting channel state information.

42. the N target CSI-RS resources correspond to N CSIs, and the N target CSI-RS resources have priorities; The step of receiving CSI corresponding to N target CSI-RS resources transmitted from the terminal includes: receiving N CSIs corresponding to the N target CSI-RS resources transmitted from the terminal based on a priority order of the N target CSI-RS resources; 24. The method of claim 23, wherein the method is a method for reporting channel state information.

43. determining the priorities of the N target CSI-RS resources based on indexes of the target CSI-RS resources; 43. The method for reporting channel state information according to any one of claims 32 to 42.

44. Among the N target CSI-RS resources, a reference CSI-RS resource has the highest priority, and priorities of the remaining N-1 target CSI-RS resources are determined based on indexes of the N-1 target CSI-RS resources.

43. The method for reporting channel state information according to any one of claims 32 to 42.

45. A channel state information reporting device applied to a terminal, comprising: a determination module for determining N target CSI-RS resources from among the Ntrp channel state information reference signal (CSI-RS) resources in response to Ntrp CSI-RS resources being configured for the terminal by a network device, where Ntrp and N are positive integers, and 1≦N≦Ntrp; a transmitting module for transmitting channel state information (CSI) corresponding to the N target CSI-RS resources to the network device. A channel state information reporting device comprising:

46. A channel state information reporting device applied to a network device, comprising: a receiving module for receiving channel state information (CSI) corresponding to N target CSI-RS resources transmitted from the terminal in response to N target CSI-RS resources being configured for the terminal by the network device; Ntrp and N are positive integers, and 1≦N≦Ntrp; A channel state information reporting device comprising:

47. A channel state information reporting device, comprising: a processor; a memory for storing instructions executable by a processor; The processor is configured to perform a method according to any one of claims 1 to 22. A channel state information reporting device comprising:

48. A channel state information reporting device, comprising: a processor; a memory for storing instructions executable by a processor; The processor is configured to perform a method according to any one of claims 23 to 44. A channel state information reporting device comprising:

49. A storage medium on which instructions are stored, The instructions in the storage medium, when executed by a processor of a terminal, cause the terminal to perform the method according to any one of claims 1 to 22. A storage medium characterized by:

50. A storage medium on which instructions are stored, The instructions in the storage medium, when executed by a processor of a network device, cause the network device to perform the method according to any one of claims 23 to 44. A storage medium characterized by:

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