Information reporting method and apparatus, and terminal and network-side device

Abstract

The embodiments of the present disclosure provide an information reporting method and apparatus, and a terminal and a network-side device. The information reporting method comprises: on the basis of the size of a first frequency-domain resource, determining a frequency-domain basis vector and a merging coefficient corresponding to the first frequency-domain resource, wherein the first frequency-domain resource is one or more segments of frequency-domain resources in a measurement bandwidth; and reporting the frequency-domain basis vector and the merging coefficient to a network-side device.

Description

Information reporting method, device, terminal and network side equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202410144731.7, filed on February 1, 2024, entitled “Information reporting method, device, terminal and network-side equipment,” which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates to the field of wireless communication technologies, and in particular to an information reporting method, apparatus, terminal, and network-side equipment. Background Art

[0004] In coherent joint transmission (CJT), if multiple transmission reception points (TRPs) are time-asynchronous or have reciprocity errors, the coherent transmission performance of these TRPs will degrade. This synchronization error or reciprocity error can be eliminated by having terminals, such as user equipment (UE), report frequency-domain phase differences. The network then pre-processes the transmission based on this phase difference.

[0005] However, when the time synchronization error is large or the frequency domain granularity of the reciprocity error is small, the reporting overhead of the frequency domain phase difference will be too large. For example, for a time synchronization error of 1600ns, with a subcarrier spacing of 15kHz, the reporting granularity of the phase difference needs to be at the resource block (RB) level to meet the transmission requirements, which makes the frequency domain basis vector length too long, significantly increasing the terminal processing complexity. Summary of the Invention

[0006] The embodiments of the present disclosure provide an information reporting method, apparatus, terminal, and network-side equipment to solve the problems of high terminal feedback overhead and high terminal processing complexity.

[0007] In a first aspect, an embodiment of the present disclosure provides an information reporting method, applied to a terminal, comprising:

[0008] Determining, according to a size of a first frequency domain resource, a frequency domain basis vector and a combining coefficient corresponding to the first frequency domain resource, wherein the first frequency domain resource is one or more frequency domain resources within a measurement bandwidth;

[0009] Report the frequency domain basis vectors and the combining coefficients to a network side device.

[0010] In some embodiments, according to an information reporting method according to an embodiment of the present disclosure, determining, based on the size of the first frequency domain resource, the frequency domain basis vector and combining coefficient corresponding to the first frequency domain resource includes:

[0011] The frequency domain basis vectors and the combining coefficients are determined according to the size and target granularity of the first frequency domain resources, wherein the target granularity is less than or equal to the reporting granularity of the channel state information CSI.

[0012] In some embodiments, according to the information reporting method of one embodiment of the present disclosure, reporting the frequency domain basis vectors and the combining coefficients to the network side device includes:

[0013] Based on the target granularity, the frequency domain basis vectors and the combining coefficients are reported to the network side device.

[0014] In some embodiments, according to the information reporting method of one embodiment of the present disclosure, the target granularity is determined based on at least one of the following:

[0015] correlation of phase differences corresponding to the first frequency domain resources;

[0016] The delay difference corresponding to the first frequency domain resource and a first mapping relationship, where the first mapping relationship is used to indicate a correspondence between the delay difference and the target granularity;

[0017] Network-side configuration or predefined rules.

[0018] In some embodiments, according to the information reporting method of one embodiment of the present disclosure, the first frequency domain resource includes at least one of the following:

[0019] A continuous frequency domain resource;

[0020] Multi-band frequency domain resources;

[0021] Multiple target resource blocks RBs or target RB groups in multiple frequency domain resources.

[0022] In some embodiments, according to the information reporting method of one embodiment of the present disclosure, the first frequency domain resource includes at least one of the following:

[0023] One or more subbands whose channel quality indicator CQI quality is greater than a first threshold;

[0024] One or more subbands whose signal to interference plus noise ratio (SINR) quality is greater than a second threshold;

[0025] One or more subbands, or multiple RBs, or multiple RB groups selected by the terminal;

[0026] One or more subbands, or multiple RBs, or multiple RB groups in the middle of the bandwidth;

[0027] A subband with a maximum length, or multiple RBs or multiple RB groups;

[0028] Multiple subband indices, or multiple RBs, or multiple RB groups configured on the network side.

[0029] In some embodiments, according to an information reporting method of an embodiment of the present disclosure, the method further includes:

[0030] Reporting a phase offset between a second frequency domain resource and the first frequency domain resource to the network side device, wherein the second frequency domain resource is a frequency domain resource within the measurement bandwidth excluding the first frequency domain resource.

[0031] In some embodiments, according to the information reporting method of one embodiment of the present disclosure, reporting the frequency domain basis vectors and the combining coefficients to the network side device includes:

[0032] The frequency domain basis vectors and combining coefficients corresponding to the multiple frequency domain resources are reported in a target reporting manner, or the frequency domain basis vectors and combining coefficients corresponding to multiple reporting quantities are reported in a target reporting manner, or the frequency domain basis vectors and combining coefficients corresponding to multiple measurement resources are reported in a target reporting manner, wherein the target reporting manner includes at least one of the following:

[0033] Report the same frequency domain basis vector in the frequency domain basis vectors corresponding to frequency domain resources of different segments and the merging coefficients of frequency domain resources of different segments are reported independently, or report the same frequency domain basis vector in the frequency domain basis vectors corresponding to different reporting amounts and the merging coefficients of different reporting amounts are reported independently, or report the same frequency domain basis vector in the frequency domain basis vectors corresponding to different measurement resources and the merging coefficients of different measurement resources are reported independently;

[0034] Report the same frequency domain basis vector among the frequency domain basis vectors corresponding to frequency domain resources of different segments, and jointly report the merging coefficients of frequency domain resources of different segments, or report the same frequency domain basis vector among the frequency domain basis vectors corresponding to different reporting amounts, and jointly report the merging coefficients of different reporting amounts, or report the same frequency domain basis vector among the frequency domain basis vectors corresponding to different measurement resources, and jointly report the merging coefficients of different measurement resources;

[0035] Report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different segments of frequency domain resources, and report the merging coefficients of different segments of frequency domain resources independently, or report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different reporting amounts, and report the merging coefficients of different reporting amounts independently, or report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different measurement resources, and report the merging coefficients of different measurement resources independently;

[0036] Report different frequency domain basis vectors among the frequency domain basis vectors corresponding to frequency domain resources of different segments, and jointly report the merging coefficients of frequency domain resources of different segments, or report different frequency domain basis vectors among the frequency domain basis vectors corresponding to different reporting amounts, and jointly report the merging coefficients of different reporting amounts, or report different frequency domain basis vectors among the frequency domain basis vectors corresponding to different measurement resources, and jointly report the merging coefficients of different measurement resources;

[0037] The merging coefficient includes at least one of a non-zero coefficient value and a maximum coefficient value.

[0038] In some embodiments, according to the information reporting method of one embodiment of the present disclosure, the quantization method of the combining coefficient includes at least one of the following:

[0039] Quantize the maximum coefficient corresponding to each frequency domain resource or each reported quantity or each measured resource within a first interval, and quantize the other non-zero coefficients within a second interval;

[0040] quantizing the maximum value of the maximum coefficient corresponding to the multiple frequency domain resources or the multiple reported quantities or the multiple measurement resources to 1, and performing quantization processing on the other maximum coefficients and non-zero coefficients in the second interval;

[0041] The minimum value of the maximum coefficient corresponding to multiple frequency domain resources or multiple reported quantities or multiple measurement resources is quantized to 1, the other maximum coefficients are quantized in the first interval, and the other non-zero coefficients are quantized in the second interval.

[0042] In some embodiments, according to the information reporting method of one embodiment of the present disclosure, the target RB is determined based on at least one of the following:

[0043] The index of the starting RB or RB group within each frequency domain resource segment indicated by the network side device;

[0044] The nth RB or RB group within each frequency domain resource segment indicated by the network-side device;

[0045] The frequency domain spacing between target RB groups within each two frequency domain resource segments indicated by the network side device;

[0046] The protocol pre-determines that the nth RB group in each frequency domain resource segment is reported;

[0047] Wherein, n is a positive integer.

[0048] In some embodiments, according to an information reporting method of an embodiment of the present disclosure, the method further includes:

[0049] In the case where the first frequency domain resource includes multiple target RB groups in multiple frequency domain resources, the phase offset between the target RB group and other RB groups except the target RB group in each frequency domain resource segment is reported to the network side device, or the phase offset between the adjacent RB groups of the target RB group and the target RB group in each frequency domain resource segment is reported.

[0050] In some embodiments, according to the information reporting method of one embodiment of the present disclosure, the phase offset includes at least one of the following:

[0051] Quantified value of phase difference;

[0052] cyclic shift values ​​of the phase offset matrix;

[0053] Phase difference reported in compressed form.

[0054] In some embodiments, according to an information reporting method according to an embodiment of the present disclosure, the method further includes at least one of the following:

[0055] Determine the first frequency domain resource according to the number of segments indicated by the network side device and the index of the starting RB or RB group in each frequency domain resource segment; or, determine, by the terminal, other frequency domain resources in the first frequency domain resource segment according to a frequency domain resource in the first frequency domain resource segment indicated by the network side device;

[0056] Determining the first frequency domain resources according to the number of segments and / or the number of RBs or the number of first subbands contained in each segment predefined in the protocol;

[0057] The first frequency domain resources are determined according to a target granularity.

[0058] In a second aspect, an embodiment of the present disclosure further provides an information reporting method, applied to a network-side device, the method comprising:

[0059] Receive frequency domain basis vectors and combining coefficients corresponding to first frequency domain resources reported by the terminal, where the first frequency domain resources are one or more frequency domain resources within the measurement bandwidth;

[0060] The downlink transmission is preprocessed according to the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources, and the preprocessing is used to eliminate time synchronization errors or reciprocity errors.

[0061] In some embodiments, according to the information reporting method of one embodiment of the present disclosure, the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources reported by the receiving terminal include:

[0062] The receiving terminal reports the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources based on a target granularity, wherein the target granularity is less than or equal to a reporting granularity of the channel state information CSI.

[0063] In some embodiments, according to the information reporting method of one embodiment of the present disclosure, the target granularity is determined based on at least one of the following:

[0064] correlation of phase differences corresponding to the first frequency domain resources;

[0065] The delay difference corresponding to the first frequency domain resource and a first mapping relationship, where the first mapping relationship is used to indicate a correspondence between the delay difference and the target granularity;

[0066] Network-side configuration or predefined rules.

[0067] In some embodiments, according to the information reporting method of one embodiment of the present disclosure, the first frequency domain resource includes at least one of the following:

[0068] A continuous frequency domain resource;

[0069] Multi-band frequency domain resources;

[0070] Multiple target resource blocks RBs or target RB groups in multiple frequency domain resources.

[0071] In some embodiments, according to the information reporting method of one embodiment of the present disclosure, the first frequency domain resource includes at least one of the following:

[0072] One or more subbands whose channel quality indicator CQI quality is greater than a first threshold;

[0073] One or more subbands whose signal to interference plus noise ratio (SINR) quality is greater than a second threshold;

[0074] One or more subbands, or multiple RBs, or multiple RB groups selected by the terminal;

[0075] One or more subbands, or multiple RBs, or multiple RB groups in the middle of the bandwidth;

[0076] A subband with a maximum length, or multiple RBs or multiple RB groups;

[0077] Multiple subband indices, or multiple RBs, or multiple RB groups configured on the network side.

[0078] In some embodiments, according to an information reporting method of an embodiment of the present disclosure, the method further includes:

[0079] Receive a phase offset between a second frequency domain resource reported by the terminal and the first frequency domain resource, wherein the second frequency domain resource is a frequency domain resource within the measurement bandwidth excluding the first frequency domain resource.

[0080] In some embodiments, according to the information reporting method of one embodiment of the present disclosure, the target RB is determined based on at least one of the following:

[0081] The index of the starting RB or RB group within each frequency domain resource segment indicated by the network side device;

[0082] The nth RB or RB group within each frequency domain resource segment indicated by the network-side device;

[0083] The frequency domain spacing between target RB groups within each two frequency domain resource segments indicated by the network side device;

[0084] The protocol pre-determines that the nth RB group in each frequency domain resource segment is reported;

[0085] Wherein, n is a positive integer.

[0086] In a third aspect, an embodiment of the present disclosure further provides a terminal, including a memory, a transceiver, and a processor, wherein:

[0087] The memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; and the processor is used to read the computer program in the memory and perform the following operations:

[0088] Determining, according to a size of a first frequency domain resource, a frequency domain basis vector and a combining coefficient corresponding to the first frequency domain resource, wherein the first frequency domain resource is one or more frequency domain resources within a measurement bandwidth;

[0089] Report the frequency domain basis vectors and the combining coefficients to a network side device.

[0090] In some embodiments, determining, based on the size of the first frequency domain resource, the frequency domain basis vector and the combining coefficient corresponding to the first frequency domain resource includes:

[0091] The frequency domain basis vectors and the combining coefficients are determined according to the size and target granularity of the first frequency domain resources, wherein the target granularity is less than or equal to the reporting granularity of the channel state information CSI.

[0092] In some embodiments, reporting the frequency domain basis vectors and the combining coefficients to a network-side device includes:

[0093] Based on the target granularity, the frequency domain basis vectors and the combining coefficients are reported to the network side device.

[0094] In some embodiments, the first frequency domain resource includes at least one of the following:

[0095] A continuous frequency domain resource;

[0096] Multi-band frequency domain resources;

[0097] Multiple target resource blocks RBs or target RB groups in multiple frequency domain resources.

[0098] In some embodiments, the operations further include:

[0099] Reporting a phase offset between a second frequency domain resource and the first frequency domain resource to the network side device, wherein the second frequency domain resource is a frequency domain resource within the measurement bandwidth excluding the first frequency domain resource.

[0100] In some embodiments, reporting the frequency domain basis vectors and the combining coefficients to a network-side device includes:

[0101] The frequency domain basis vectors and combining coefficients corresponding to the multiple frequency domain resources are reported in a target reporting manner, or the frequency domain basis vectors and combining coefficients corresponding to multiple reporting quantities are reported in a target reporting manner, or the frequency domain basis vectors and combining coefficients corresponding to multiple measurement resources are reported in a target reporting manner, wherein the target reporting manner includes at least one of the following:

[0102] Report the same frequency domain basis vector in the frequency domain basis vectors corresponding to frequency domain resources of different segments and the merging coefficients of frequency domain resources of different segments are reported independently, or report the same frequency domain basis vector in the frequency domain basis vectors corresponding to different reporting amounts and the merging coefficients of different reporting amounts are reported independently, or report the same frequency domain basis vector in the frequency domain basis vectors corresponding to different measurement resources and the merging coefficients of different measurement resources are reported independently;

[0103] Report the same frequency domain basis vector among the frequency domain basis vectors corresponding to frequency domain resources of different segments, and jointly report the merging coefficients of frequency domain resources of different segments, or report the same frequency domain basis vector among the frequency domain basis vectors corresponding to different reporting amounts, and jointly report the merging coefficients of different reporting amounts, or report the same frequency domain basis vector among the frequency domain basis vectors corresponding to different measurement resources, and jointly report the merging coefficients of different measurement resources;

[0104] Report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different segments of frequency domain resources, and report the merging coefficients of different segments of frequency domain resources independently, or report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different reporting amounts, and report the merging coefficients of different reporting amounts independently, or report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different measurement resources, and report the merging coefficients of different measurement resources independently;

[0105] Report different frequency domain basis vectors among the frequency domain basis vectors corresponding to frequency domain resources of different segments, and jointly report the merging coefficients of frequency domain resources of different segments, or report different frequency domain basis vectors among the frequency domain basis vectors corresponding to different reporting amounts, and jointly report the merging coefficients of different reporting amounts, or report different frequency domain basis vectors among the frequency domain basis vectors corresponding to different measurement resources, and jointly report the merging coefficients of different measurement resources;

[0106] The merging coefficient includes at least one of a non-zero coefficient value and a maximum coefficient value.

[0107] In some embodiments, the operations further include:

[0108] In the case where the first frequency domain resource includes multiple target RB groups in multiple frequency domain resources, the phase offset between the target RB group and other RB groups except the target RB group in each frequency domain resource segment is reported to the network side device, or the phase offset between the adjacent RB groups of the target RB group and the target RB group in each frequency domain resource segment is reported.

[0109] In some embodiments, the operations further include at least one of the following:

[0110] Determine the first frequency domain resource according to the number of segments indicated by the network side device and the index of the starting RB or RB group in each frequency domain resource segment; or, determine, by the terminal, other frequency domain resources in the first frequency domain resource segment according to a frequency domain resource in the first frequency domain resource segment indicated by the network side device;

[0111] Determining the first frequency domain resources according to the number of segments and / or the number of RBs or the number of first subbands contained in each segment predefined in the protocol;

[0112] The first frequency domain resources are determined according to a target granularity.

[0113] In a fourth aspect, an embodiment of the present disclosure further provides a network-side device, including a memory, a transceiver, and a processor, wherein:

[0114] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0115] Receive frequency domain basis vectors and combining coefficients corresponding to first frequency domain resources reported by the terminal, where the first frequency domain resources are one or more frequency domain resources within the measurement bandwidth;

[0116] The downlink transmission is preprocessed according to the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources, and the preprocessing is used to eliminate time synchronization errors or reciprocity errors.

[0117] In some embodiments, the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources reported by the receiving terminal include:

[0118] The receiving terminal reports the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources based on a target granularity, wherein the target granularity is less than or equal to a reporting granularity of the channel state information CSI.

[0119] In some embodiments, the first frequency domain resource includes at least one of the following:

[0120] A continuous frequency domain resource;

[0121] Multi-band frequency domain resources;

[0122] Multiple target resource blocks RBs or target RB groups in multiple frequency domain resources.

[0123] In some embodiments, the operations further include:

[0124] Receive a phase offset between a second frequency domain resource reported by the terminal and the first frequency domain resource, wherein the second frequency domain resource is a frequency domain resource within the measurement bandwidth excluding the first frequency domain resource.

[0125] In a fifth aspect, an embodiment of the present disclosure further provides an information reporting device, applied to a terminal, comprising:

[0126] a determination module, configured to determine, based on a size of a first frequency domain resource, a frequency domain basis vector and a combining coefficient corresponding to the first frequency domain resource, wherein the first frequency domain resource is one or more frequency domain resources within a measurement bandwidth;

[0127] The sending module is used to report the frequency domain basis vectors and the combining coefficients to the network side device.

[0128] In a sixth aspect, an embodiment of the present disclosure further provides an information reporting device, applied to a network-side device, comprising:

[0129] A receiving module, configured to receive frequency domain basis vectors and combining coefficients corresponding to first frequency domain resources reported by a terminal, wherein the first frequency domain resources are one or more frequency domain resources within a measurement bandwidth;

[0130] A processing module is used to pre-process the downlink transmission according to the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources, and the pre-processing is used to eliminate time synchronization errors or reciprocity errors.

[0131] In the seventh aspect, an embodiment of the present disclosure further provides a non-transitory readable storage medium, wherein the non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the information reporting method described in the first aspect or the second aspect above.

[0132] In an eighth aspect, an embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the steps of the information reporting method described in the first aspect or the second aspect above.

[0133] In a ninth aspect, an embodiment of the present disclosure further provides a communication device, in which a computer program is stored, and the computer program is used to enable the communication device to execute the information reporting method described in the first aspect or the second aspect above.

[0134] In a tenth aspect, an embodiment of the present disclosure further provides a chip product, wherein a computer program is stored in the chip product, and the computer program is used to enable the chip product to execute the information reporting method described in the first aspect or the second aspect above.

[0135] The information reporting method, apparatus, terminal and network-side equipment provided by the embodiments of the present disclosure use a frequency domain resource segmentation method. The first frequency domain resource is one or more frequency domain resources within the measurement bandwidth. First, the frequency domain basis vectors and merging coefficients corresponding to the first frequency domain resource are determined according to the size of the first frequency domain resource. Then, the frequency domain basis vectors and merging coefficients corresponding to the first frequency domain resource (i.e., the segmented frequency domain resource) are reported. Since the first frequency domain resource is one or more frequency domain resources within the measurement bandwidth, rather than the entire measurement bandwidth, the length of the frequency domain basis vectors can be shortened, thereby reducing the terminal feedback overhead and the terminal processing complexity. BRIEF DESCRIPTION OF THE DRAWINGS

[0136] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0137] FIG1 is a flow chart of an information reporting method according to an embodiment of the present disclosure;

[0138] FIG2 is a second flow chart of the information reporting method provided by an embodiment of the present disclosure;

[0139] FIG3 is a schematic diagram of compressing and reporting a continuous frequency domain resource corresponding to a reporting amount according to an embodiment of the present disclosure;

[0140] FIG4 is a schematic diagram of compressing and reporting the reported amounts corresponding to multiple consecutive frequency domain resources according to an embodiment of the present disclosure;

[0141] FIG5 is a schematic diagram of selecting some frequency domain resources at intervals for compressing and reporting reporting amounts according to an embodiment of the present disclosure;

[0142] FIG6 is a schematic diagram of reporting a phase offset between an unselected RB or RB group and a selected RB or RB group provided by an embodiment of the present disclosure;

[0143] FIG7 is a second schematic diagram of selecting some frequency domain resources at intervals for compressing and reporting reporting amounts according to an embodiment of the present disclosure;

[0144] FIG8 is a second schematic diagram of compressing and reporting a continuous frequency domain resource corresponding to a reporting amount provided by an embodiment of the present disclosure;

[0145] FIG9 is a schematic structural diagram of a terminal provided in an embodiment of the present disclosure;

[0146] FIG10 is a schematic structural diagram of a network-side device provided in an embodiment of the present disclosure;

[0147] FIG11 is a schematic diagram of a structure of an information reporting device according to an embodiment of the present disclosure;

[0148] FIG12 is a second structural diagram of the information reporting device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0149] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0150] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0151] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0152] The embodiments of the present disclosure provide an information reporting method, apparatus, terminal, and network-side equipment, which can reduce terminal feedback overhead and lower terminal processing complexity.

[0153] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0154] The technical solutions provided by the embodiments of the present disclosure can be applicable to a variety of systems, such as 5G systems or 6G systems. For example, applicable systems may be global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile telecommunication systems (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G new radio (NR) systems, etc. These various systems include terminal devices and network devices. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0155] The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called User Equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.

[0156] The network device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be called another name. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a base transceiver station (BTS) in the Global System for Mobile communications (GSM) or code division multiple access (CDMA), a network device (NodeB) in wide-band code division multiple access (WCDMA), an evolutionary Node B (eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), a 6G base station in the 6G network architecture, a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of the present disclosure. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0157] In order to facilitate a clearer understanding of the various embodiments of the present disclosure, some relevant knowledge is first introduced.

[0158] 1. Rel-16 frequency domain compression reporting method:

[0159] One layer of the Rel-16 frequency domain compression codebook can be represented as a P×N3 precoding matrix:

[0160] W1 in the pre-coded expression, and Wf They correspond to spatial domain compression, linear merging coefficients and frequency domain compression respectively.

[0161] 2. Airspace Compression

[0162] Spatial compression is achieved through W1,

[0163] in is an orthogonal DFT vector of dimension N1N2×1, L is the number of selected spatial basis vectors. W1 is the set of spatial basis vectors shared by multiple layers and multiple polarization directions. The total number of spatial basis vectors is N1O1N2O2, where O1 and O2 are the oversampling factors in two dimensions (vertical and horizontal).

[0164] 3. Frequency domain compression:

[0165] Frequency domain compression is achieved by W f Implementation: For multi-layer transmission, all beams in the same layer share the same frequency domain basis vector, and different layers use different frequency domain basis vectors. For layer υ, the frequency domain basis vector can be expressed as:

[0166] in, Indicates M υ N3×1 orthogonal DFT vectors, M υ is the number of frequency domain basis vectors, is a set of basis vector indices selected from {0,1,…,N3-1}.

[0167] When N3≤19, a single-step indication method is used. After selecting the frequency domain basis vector and calculating the corresponding combining coefficient, the terminal can use the phase rotation matrix (i.e., cyclic shift operation) to preprocess (multiply) the frequency domain basis vector matrix to ensure that the basis vector corresponding to the strongest coefficient (see the following description of the combining coefficient) is the first frequency domain basis vector (index is 0). In this way, when indicating the basis vector, only the frequency domain basis vectors corresponding to other combining coefficients need to be indicated, reducing the feedback overhead, that is, selecting M from N3-1 frequency domain basis vectors. υ -1, Indicates the number of frequency domain basis vectors, R indicates the number of precoding matrix indicators (PMIs) corresponding to each subband, which is configured by high-level parameters, and p υ The scaling factor of the number of frequency domain basis vectors of the representation layer υ, the value of which is predefined in the protocol (1 / 4 or 1 / 8). Represents the number of permutations and combinations of selecting B basis vectors from A basis vectors, Since each subband uses the same phase rotation matrix, the phase rotation matrix will not affect the system performance, and the terminal does not need to report the phase rotation matrix.

[0168] When N3>19, a two-step indication method is adopted. First, the terminal determines an intermediate basis vector set, including 2M υ frequency domain basis vectors, through the parameter M initial Indicates the starting position of the intermediate basis vector set, that is, from M initial The first 2M υ The frequency domain basis vectors are used as the intermediate basis vector set. Then the terminal selects M from the intermediate basis vector set. υ -1 is fed back to the network side.

[0169] 4. Linear merging coefficient:

[0170] Merge coefficient by Each layer only needs to report the coefficients with larger amplitudes, and the remaining coefficients can be assumed to be 0, which can further reduce the feedback overhead. The network side configures the maximum number of non-zero coefficients that can be reported by the terminal. When the rank indication (RI) = 1, the maximum number of non-zero coefficients When RI>1, the maximum number of non-zero coefficients in all layers is 2K0, where the value of β is predefined by the protocol.

[0171] When the error is large, if the relevant frequency domain compression method is followed and the reporting accuracy of the reported amount is guaranteed, it is necessary to report with a smaller frequency domain granularity. For example, each RB needs to feedback a reported amount, which will cause the basis vector length to be too long, and in turn cause the terminal to have too high computational complexity when determining the frequency domain basis vector and the combining coefficient, and the feedback overhead will also increase accordingly.

[0172] The embodiment of the present disclosure is based on the reporting characteristics of the phase difference (for example, the theoretical value of the phase difference between subcarrier i+1 and subcarrier i is Where τ is the effect of error, which is inherently sparse or piecewise sparse in the frequency domain. A segmented-based compressed reporting method is proposed to reduce feedback overhead. Other measured or reported quantities (such as time difference, frequency difference, phase offset, etc.) with similar characteristics to phase difference (e.g., sparse in the frequency domain) can also be reported using the segmented compression method of this invention.

[0173] FIG1 is a flow chart of an information reporting method according to an embodiment of the present disclosure. The method is applied to a terminal. As shown in FIG1 , the method includes steps 101 to 102, wherein:

[0174] Step 101: Determine frequency domain basis vectors and combining coefficients corresponding to first frequency domain resources according to a size of the first frequency domain resources, wherein the first frequency domain resources are one or more frequency domain resources within a measurement bandwidth.

[0175] It should be noted that the information reporting method provided in the embodiment of the present disclosure is applicable to at least one of the following situations: CJT transmission; joint transmission of multiple TRPs; single TRP transmission.

[0176] In an embodiment of the present disclosure, the first frequency domain resource is obtained by segmenting the frequency domain resources within the measurement bandwidth. The size of the first frequency domain resource is no larger than the size of the measurement bandwidth. For example, the first frequency domain resource includes at least one of the following:

[0177] 1) A continuous frequency domain resource;

[0178] 2) Multi-band frequency domain resources;

[0179] 3) Multiple target RBs or target RB groups in multiple frequency domain resources.

[0180] Specifically, the target RB is determined based on at least one of the following:

[0181] Determination method 1: the index of the starting RB or RB group in each frequency domain resource segment indicated by the network side device;

[0182] For example, it indicates the index of the starting RB or RB group (the offset relative to the starting RB of the measurement bandwidth, or the offset relative to the CRB).

[0183] Determination method 2: the nth RB or RB group in each frequency domain resource segment indicated by the network side device; where n is a positive integer;

[0184] Determination method 3: the frequency domain interval between target RB groups within each two frequency domain resource segments indicated by the network side device;

[0185] It should be noted that the frequency domain interval between target RB groups is different from the target granularity and can be an integer multiple of the target granularity.

[0186] Determination method 4: reporting is performed on the nth RB group in each frequency domain resource segment as pre-specified by the protocol.

[0187] In the disclosed embodiment, the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resource are determined based on the size of the first frequency domain resource and the target granularity, where the target granularity is less than or equal to the reporting granularity of the channel state information (CSI) predefined in the protocol.

[0188] Step 102: Report the frequency domain basis vectors and the combining coefficients to a network-side device.

[0189] In some embodiments, after determining the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resource based on the size of the first frequency domain resource, the terminal reports the frequency domain basis vectors and the combining coefficients to a network-side device. After receiving the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resource reported by the terminal, the network-side device preprocesses the downlink transmission based on the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resource to eliminate time synchronization errors or reciprocity errors.

[0190] In the information reporting method provided by the embodiment of the present disclosure, by using the frequency domain resource segmentation method, the first frequency domain resource is one or more frequency domain resources within the measurement bandwidth. First, according to the size of the first frequency domain resource, the frequency domain basis vector and the merging coefficient corresponding to the first frequency domain resource are determined, and then the frequency domain basis vector and the merging coefficient corresponding to the first frequency domain resource (i.e., the segmented frequency domain resource) are reported. Since the first frequency domain resource is one or more frequency domain resources within the measurement bandwidth, rather than the entire measurement bandwidth, the length of the frequency domain basis vector can be shortened, thereby reducing the terminal feedback overhead and the terminal processing complexity.

[0191] In some embodiments, the first frequency domain resource is obtained by segmenting the frequency domain resources within the measurement bandwidth, and the segmentation method includes at least one of the following:

[0192] Segmentation method 1: Segmentation method based on network configuration:

[0193] The network side indicates the number of segments and the starting RB or starting RB group of each segment to the terminal;

[0194] Alternatively, the network side indicates the first frequency domain resource to the terminal, and the terminal determines the frequency domain resources of other segments, for example, indicating the starting RB index and the number of consecutive RBs of the first frequency domain resource to the terminal, or indicating the starting RB group index and the number of consecutive RB groups of the first frequency domain resource to the terminal, or indicating the starting first subband number and the number of consecutive first subbands of the first frequency domain resource to the terminal, or indicating the starting second subband number and the number of consecutive second subbands of the first frequency domain resource to the terminal, or indicating the terminal through bit mapping with RB or RB group or first subband or second subband as the granularity. The first subband is the subband corresponding to the target granularity, and the second subband is the subband corresponding to the CSI reporting granularity.

[0195] After determining the first frequency domain resource, the terminal determines other segments in a method including at least one of the following:

[0196] 1) Determine the number of continuous RBs or RB groups or the number of first subbands or the number of second subbands in other segments according to the number of RBs or RB groups or the number of first subbands or the number of second subbands in the first frequency domain resource;

[0197] 2) Determine the number of segments according to the number of RBs or RB groups or the number of first subbands or the number of second subbands of the first frequency domain resource;

[0198] 3) Determine the starting RB index or starting RB group index or starting first subband index or starting second subband index of other segments according to the number of RBs or the number of RB groups or the number of first subbands or the number of second subbands of the first frequency domain resource.

[0199] Segmentation method 2: Segmentation method based on predefined rules:

[0200] The first frequency domain resources and other frequency domain resources are determined by the terminal according to predefined rules. For example, the number of segments and / or the number of RBs or RB groups or the first subband number or the second subband number contained in each segment are pre-specified in the protocol. The segmentation method is similar to the first subband division method; the terminal determines the frequency domain resources corresponding to each segment based on the predefined number of RBs or RB groups or the first subband number or the second subband number contained in each segment, or the number of segments.

[0201] Segmentation method 3, segmentation method determined by the terminal:

[0202] The terminal determines the number of RBs, RB groups, first subbands, or second subbands of the first frequency domain resource based on the first granularity or the target granularity, and then indicates the starting RB index, starting RB group index, starting first subband index, or starting second subband index of the first frequency domain resource to the network side. The terminal indicates the number of segments, the number of RBs, RB groups, first subbands, or second subbands included in the first frequency domain resource to the network side.

[0203] In the embodiment of the present disclosure, the first frequency domain resource may include at least one of the following:

[0204] 1) One or more subbands whose channel quality indicator (CQI) quality is greater than a first threshold.

[0205] For example, the sub-band here is a sub-band corresponding to the first granularity or the target granularity.

[0206] 2) one or more subbands whose signal to interference noise ratio (SINR) quality is greater than a second threshold;

[0207] 3) one or more subbands, or multiple RBs, or multiple RB groups selected by the terminal;

[0208] 4) One or more subbands, or multiple RBs, or multiple RB groups in the middle of the bandwidth;

[0209] 5) A subband with a maximum length, or multiple RBs or multiple RB groups;

[0210] 6) Multiple subband indices, or multiple RBs, or multiple RB groups configured on the network side.

[0211] In the information reporting method provided by the embodiment of the present disclosure, the terminal determines a first reporting quantity (such as a phase difference) based on one or more frequency domain resources within the measurement bandwidth and a first granularity or a target granularity, and reports the frequency domain basis vector and the combining coefficient corresponding to the first reporting quantity, wherein the target granularity is less than or equal to the first granularity, wherein the first granularity is a CSI reporting granularity pre-specified in the protocol, and is used for reporting granularity of other reporting quantities other than the first reporting quantity.

[0212] Specifically, the information reporting method provided by the embodiment of the present disclosure is a segmented phase difference compression reporting method, in which the terminal compresses and reports the reporting amount corresponding to one or more frequency domain resources (first frequency domain resources), or compresses and reports the reporting amount of some RBs or RB groups within each frequency domain resource segment. For other frequency domain resources that do not report the first reporting amount, the terminal reports a second reporting amount (such as a phase offset) that is different from the reported amount. The network side determines the preprocessing factor corresponding to the entire frequency domain resource (third frequency domain resource) based on the terminal's report and performs downlink transmission preprocessing.

[0213] The implementation method of reporting the frequency domain basis vectors and the combining coefficients to the network-side device in step 102 includes: reporting the frequency domain basis vectors and the combining coefficients to the network-side device based on the target granularity. Since the target granularity is less than or equal to the CSI reporting granularity predefined in the protocol, feedback accuracy can be improved.

[0214] In some embodiments, the target particle size is determined based on at least one of the following:

[0215] 1) Correlation of phase differences corresponding to the first frequency domain resources;

[0216] For example, the correlation is determined based on the inner product of a vector of measured values ​​or a change in the measured values.

[0217] 2) a delay difference and a first mapping relationship corresponding to the first frequency domain resource, where the first mapping relationship is used to indicate a correspondence between the delay difference and the target granularity;

[0218] For example, the first mapping relationship is the correspondence between the delay difference and the target granularity specified in the protocol.

[0219] 3) Network-side configuration or predefined rules.

[0220] In some embodiments, the terminal reports a phase offset between a second frequency domain resource and the first frequency domain resource to the network side device, wherein the second frequency domain resource is a frequency domain resource within the measurement bandwidth except the first frequency domain resource.

[0221] In some embodiments, the implementation method of reporting the frequency domain basis vectors and the combining coefficients to the network side device in the above step 102 includes: using a target reporting method to report the frequency domain basis vectors and combining coefficients corresponding to the multiple frequency domain resources or multiple reporting quantities or multiple measurement resources, that is, using a target reporting method to report the frequency domain basis vectors and combining coefficients corresponding to the multiple frequency domain resources, or using a target reporting method to report the frequency domain basis vectors and combining coefficients corresponding to multiple reporting quantities, or using a target reporting method to report the frequency domain basis vectors and combining coefficients corresponding to multiple measurement resources. Reporting the frequency domain basis vectors and combining coefficients corresponding to multiple measurement resources indicates reporting corresponding to different TRPs, that is, multiple TRP corresponding reporting quantities are all reported using a target reporting method. Among them, the target reporting method includes at least one of the following:

[0222] Mode a: reporting the same frequency domain basis vector in the frequency domain basis vectors corresponding to frequency domain resources of different segments and reporting the merging coefficients of frequency domain resources of different segments independently; or reporting the same frequency domain basis vector in the frequency domain basis vectors corresponding to different reporting amounts and reporting the merging coefficients of different reporting amounts independently; or reporting the same frequency domain basis vector in the frequency domain basis vectors corresponding to different measurement resources and reporting the merging coefficients of different measurement resources independently;

[0223] The combined coefficient includes at least one of a non-zero coefficient value and a maximum coefficient value.

[0224] Specifically, the maximum coefficient may be at least one of the following: the maximum coefficient corresponding to each frequency domain resource segment, the maximum coefficient among all combined coefficients corresponding to multiple frequency domain resources segments, the maximum coefficient corresponding to each reported quantity, the maximum coefficient among all combined coefficients corresponding to multiple reported quantities, the maximum coefficient corresponding to each measurement resource, and the maximum coefficient among all combined coefficients corresponding to multiple measurement resources. Accordingly, the non-zero coefficient may be at least one of the following: the non-zero coefficient corresponding to each frequency domain resource segment, the non-zero coefficient corresponding to multiple frequency domain resources segments, the non-zero coefficient corresponding to each reported quantity, the non-zero coefficient corresponding to multiple reported quantities, the non-zero coefficient corresponding to each measurement resource, and the non-zero coefficient corresponding to multiple measurement resources.

[0225] Mode b: reporting the same frequency domain basis vector in the frequency domain basis vectors corresponding to frequency domain resources of different segments, and jointly reporting the merging coefficients of frequency domain resources of different segments, or reporting the same frequency domain basis vector in the frequency domain basis vectors corresponding to different reporting amounts, and jointly reporting the merging coefficients of different reporting amounts, or reporting the same frequency domain basis vector in the frequency domain basis vectors corresponding to different measurement resources, and jointly reporting the merging coefficients of different measurement resources;

[0226] Specifically, the method for jointly reporting the strongest coefficient values ​​for each segment includes: the terminal uses the coefficient with the largest amplitude across all segments for normalization. The coefficient with the largest amplitude does not need to be reported, and the strongest coefficients for other segments can be quantized and reported using the relevant amplitude quantization method (i.e., the amplitude is less than 1). Alternatively, the terminal uses the coefficient with the smallest amplitude across all segments for normalization, and the strongest coefficient for each frequency domain resource segment is quantized within the interval [1, a].

[0227] Mode c: reporting different frequency domain basis vectors in the frequency domain basis vectors corresponding to different segments of frequency domain resources, and reporting the merging coefficients of different segments of frequency domain resources independently, or reporting different frequency domain basis vectors in the frequency domain basis vectors corresponding to different reporting amounts, and reporting the merging coefficients of different reporting amounts independently, or reporting different frequency domain basis vectors in the frequency domain basis vectors corresponding to different measurement resources, and reporting the merging coefficients of different measurement resources independently;

[0228] Method d: reporting different frequency domain basis vectors in the frequency domain basis vectors corresponding to frequency domain resources of different segments, and jointly reporting the merging coefficients of frequency domain resources of different segments; or reporting different frequency domain basis vectors in the frequency domain basis vectors corresponding to different reporting amounts, and jointly reporting the merging coefficients of different reporting amounts; or reporting different frequency domain basis vectors in the frequency domain basis vectors corresponding to different measurement resources, and jointly reporting the merging coefficients of different measurement resources.

[0229] The quantization method of the combined coefficient in the embodiment of the present disclosure includes at least one of the following:

[0230] 1) The maximum coefficient corresponding to each frequency domain resource or each reported quantity or each measured resource is quantized in a first interval, and the other non-zero coefficients are quantized in a second interval.

[0231] 2) quantizing the maximum value of the maximum coefficients corresponding to the multiple frequency domain resources or the multiple reported quantities or the multiple measurement resources to 1, and performing quantization processing on the other maximum coefficients and non-zero coefficients in the second interval.

[0232] 3) The minimum value of the maximum coefficient corresponding to multiple frequency domain resources or multiple reported quantities or multiple measurement resources is quantized to 1, the other maximum coefficients are quantized in the first interval, and the other non-zero coefficients are quantized in the second interval.

[0233] In an embodiment of the present disclosure, when the first frequency domain resource includes multiple target RB groups in multiple frequency domain resources, the phase offset between the target RB group and other RB groups except the target RB group in each frequency domain resource segment is reported to the network side device, or the phase offset between the adjacent RB groups of the target RB group and the target RB group in each frequency domain resource segment is reported.

[0234] In some embodiments, the phase offset includes at least one of the following: a quantized value of a phase difference; a cyclic shift value of a phase offset matrix; and a phase difference reported in a compressed manner.

[0235] In an embodiment of the present disclosure, a terminal may determine the first frequency domain resource based on the number of segments indicated by a network-side device and the index of the starting RB or RB group within each frequency domain resource segment; or, the terminal may determine other frequency domain resource segments within the first frequency domain resource based on a segment of the first frequency domain resource indicated by the network-side device. Alternatively, the terminal may determine the first frequency domain resource based on the number of segments and / or the number of RBs or the number of first subbands contained in each segment predefined in the protocol. Alternatively, the terminal may determine the first frequency domain resource based on a target granularity.

[0236] FIG2 is a second flow chart of an information reporting method provided by an embodiment of the present disclosure. The method is applied to a network-side device. As shown in FIG2 , the method includes:

[0237] Step 201: Receive frequency domain basis vectors and combining coefficients corresponding to first frequency domain resources reported by a terminal, where the first frequency domain resources are one or more frequency domain resources within a measurement bandwidth.

[0238] It should be noted that the information reporting method provided in the embodiment of the present disclosure is applicable to at least one of the following situations: CJT transmission; joint transmission of multiple TRPs; single TRP transmission.

[0239] Step 202: Preprocess the downlink transmission according to the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources, where the preprocessing is used to eliminate time synchronization errors or reciprocity errors.

[0240] In some embodiments, after the network side device receives the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources reported by the terminal, it preprocesses the downlink transmission according to the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources to eliminate time synchronization errors or reciprocity errors.

[0241] In the information reporting method provided by the embodiment of the present disclosure, by using the frequency domain resource segmentation method, the first frequency domain resource is one or more frequency domain resources within the measurement bandwidth, and the terminal reports the frequency domain basis vector and the merging coefficient corresponding to the first frequency domain resource (i.e., the segmented frequency domain resource). Since the first frequency domain resource is one or more frequency domain resources within the measurement bandwidth, rather than the entire measurement bandwidth, the length of the frequency domain basis vector can be shortened, thereby reducing the terminal feedback overhead and the terminal processing complexity.

[0242] In some embodiments, the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources reported by the receiving terminal include: the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources reported by the receiving terminal based on the target granularity, wherein the target granularity is less than or equal to the reporting granularity of the channel state information CSI.

[0243] In some embodiments, the target particle size is determined based on at least one of the following:

[0244] correlation of phase differences corresponding to the first frequency domain resources;

[0245] The delay difference corresponding to the first frequency domain resource and a first mapping relationship, where the first mapping relationship is used to indicate a correspondence between the delay difference and the target granularity;

[0246] Network-side configuration or predefined rules.

[0247] In some embodiments, the first frequency domain resource includes at least one of the following:

[0248] A continuous frequency domain resource;

[0249] Multi-band frequency domain resources;

[0250] Multiple target resource blocks RBs or target RB groups in multiple frequency domain resources.

[0251] In some embodiments, the first frequency domain resource includes at least one of the following:

[0252] One or more subbands whose channel quality indicator CQI quality is greater than a first threshold;

[0253] One or more subbands whose signal to interference plus noise ratio (SINR) quality is greater than a second threshold;

[0254] One or more subbands, or multiple RBs, or multiple RB groups selected by the terminal;

[0255] One or more subbands, or multiple RBs, or multiple RB groups in the middle of the bandwidth;

[0256] A subband with a maximum length, or multiple RBs or multiple RB groups;

[0257] Multiple subband indices, or multiple RBs, or multiple RB groups configured on the network side.

[0258] In some embodiments, the method further comprises:

[0259] Receive a phase offset between a second frequency domain resource reported by the terminal and the first frequency domain resource, wherein the second frequency domain resource is a frequency domain resource within the measurement bandwidth excluding the first frequency domain resource.

[0260] In some embodiments, the target RB is determined based on at least one of the following:

[0261] The index of the starting RB or RB group within each frequency domain resource segment indicated by the network side device;

[0262] The nth RB or RB group within each frequency domain resource segment indicated by the network-side device;

[0263] The frequency domain spacing between target RB groups within each two frequency domain resource segments indicated by the network side device;

[0264] The protocol pre-determines that the nth RB group in each frequency domain resource segment is reported;

[0265] Wherein, n is a positive integer.

[0266] Here, the information reporting method provided by the embodiment of the present disclosure is illustrated through several specific embodiments.

[0267] Specific embodiment 1: The terminal compresses and reports the phase difference corresponding to a continuous frequency domain resource (first frequency domain resource).

[0268] The terminal compresses and reports the first reporting amount within the first frequency domain resource according to the target granularity, where the target granularity is different from the subband size (first granularity) of the CSI reporting (in the relevant protocol). Basis vector length determination method: The basis vector length is determined by the size of the first frequency domain resource and the target granularity. The method for determining the combining coefficient is consistent with the relevant technology.

[0269] In some embodiments, the terminal reports a phase offset (a second reporting amount, used for downlink transmission preprocessing of other resources) between the starting RB or RB group of other frequency domain resources (or the starting RB group corresponding to the target granularity) and the starting RB (or starting RB group) of the first frequency domain resource reported by the terminal. In some embodiments, the terminal reports the indexes of one or more first frequency domain resources.

[0270] In some embodiments, a method for determining the target particle size may include at least one of the following:

[0271] Option 1: The terminal determines the target granularity based on the correlation of the measurement values, such as the inner product of the vector of measurement values ​​or the change in measurement values.

[0272] Option 2: The terminal can determine the target granularity based on the measured delay difference and the value of a predefined rule (the correspondence between the delay difference and the target granularity specified in the protocol);

[0273] Option 3: The terminal determines the target granularity based on the network configuration or predefined rules.

[0274] In some embodiments, the first frequency domain resource may be at least one of the following:

[0275] 1) One or more first subbands with the best CQI quality (or SINR quality) (e.g., measured by CJT codebook feedback) or one or more first subbands or multiple RBs or multiple RB groups selected by the terminal;

[0276] 2) one or more first subbands, or multiple RBs, or multiple RB groups in the middle of the bandwidth;

[0277] 3) a subband with the maximum length (e.g., not the last subband), or multiple RBs or multiple RB groups;

[0278] 4) Multiple subband indices or multiple RBs or multiple RB groups configured on the network side.

[0279] In some embodiments, the terminal reports the phase difference corresponding to the first frequency domain resource. When reporting, the report is reported according to the target granularity (the reported amount includes basis vectors, combining coefficients, etc.). After obtaining the report from the terminal, the network side uses this set of reported amounts to adjust the transmission phase corresponding to the third frequency domain resource of the terminal. The third frequency domain resource can be the entire transmission bandwidth of the terminal, the bandwidth of the third frequency domain resource is greater than the first frequency domain resource (i.e., the resource corresponding to the report), or the number of RBs included in the third frequency domain resource is greater than the number of RBs corresponding to the first frequency domain resource.

[0280] Among them, the first subband is the subband defined by the current protocol, that is, the subband used for other CSI feedback (such as PMI reporting, RI reporting, CQI reporting, etc. based on Type I codebook, Type II codebook, CJT codebook, etc.). The terminal reports a PMI, CQI, etc. for each subband. The size of the subband (that is, the number of PRBs contained) is pre-defined by the protocol, as shown in Table 1. For example, when the number of PRBs corresponding to the BWP is 145-275 PRBs, the subband size can be configured as 16 PRBs or 32 PRBs, that is, 16 PRBs or 32 PRBs correspond to the same precoding matrix. The size of the subband can also be referred to as the granularity of the CSI report. In this disclosure, the granularity of the CSI report is also referred to as the first granularity.

[0281] Table 1: Configurable subband sizes

[0282] The phase difference is reported in a compressed manner, and the corresponding reporting granularity is the target granularity, such as K PRBs. The value K can be configured by the network side or reported by the terminal, where the first subband size can be an integer multiple of K. For example, the subband size of the CSI report excluding the phase difference is 32 PRBs, and the reporting granularity K of the phase difference can be 4 PRBs or 2 PRBs, etc. The reporting amount (first reporting amount, phase difference) reported at the target granularity is to solve the time asynchrony in the system or to eliminate reciprocity errors, thereby improving the PDSCH transmission performance. Therefore, the reporting of the first reporting amount is carried out simultaneously with the reporting of CQI, PMI, RI, etc. corresponding to the PDSCH transmission. Therefore, it is necessary to distinguish the reporting granularity of different reporting amounts.

[0283] For example, when there are 200 PRBs in the BWP (corresponding to the third frequency domain resource), the terminal can report the phase difference corresponding to 72 PRBs (corresponding to the first frequency domain resource). When reporting the phase difference for 72 PRBs, the terminal can measure the phase difference corresponding to up to 72 PRBs, and the terminal compresses and reports up to 72 phase differences.

[0284] In some embodiments, the specific compression reporting process may include:

[0285] Step 1: The terminal measures the measurement resource corresponding to the first frequency domain resource to obtain a phase difference, where the phase difference is used to reflect a time synchronization error or a reciprocity error.

[0286] For example, the measurement resource corresponding to the first frequency domain resource is a CSI-RS resource, a TRS resource, or an SSB resource.

[0287] When performing time error measurement, the terminal can receive according to the reference timing configured by the network side (such as the QCL-Type A parameters of one of the measurement resources, that is, the Type A parameters, including Doppler frequency domain, Doppler spread, average delay and delay spread parameters), and measure the phase difference between each two frequency domain units (each frequency domain unit corresponds to one or more RBs, or one or more subcarriers). Taking the phase difference of 2 RBs as an example, assuming that there are 4 TRPs, each TRP corresponds to a measurement resource or a measurement resource port, the frequency domain channel information measured by the terminal based on the 2 RBs corresponding to the measurement TRP i is respectively and (Assuming the terminal uses one receiving antenna for measurement, and are all scalars), then the phase difference between two adjacent RBs at TRP i is or Where angle(·) is the phase operation. If the phases of two adjacent RBs are and Then the phase difference can be

[0288] Alternatively, for each frequency domain unit, the terminal measures the phase difference of the frequency domain channel between multiple TRPs (measurement resources or measurement resource ports), such as the frequency domain channel information of TRP i and TRP j in one RB are respectively and (Assuming the terminal uses one receiving antenna for measurement, and are all scalars), then the phase difference between TRP i and TRP j is or Where angle(·) is the phase operation. If the phases of the two TRPs are and Then the phase difference can be

[0289] When performing reciprocity error measurement, we still take 4 TRPs as an example. Each TRP corresponds to a measurement resource or a measurement resource port. The terminal measures the phase difference between the frequency domain channels of the measurement resources corresponding to the two TRPs in each frequency domain unit. For example, the frequency domain channel information of TRP 1 and TRP 2 are H1 and H2 respectively (assuming that the terminal uses one receiving antenna for measurement, H1 and H2 are both scalars), and the phase difference is angle(H1 / H2) or angle(H2 / H1); if the phases of two adjacent RBs are and Then the phase difference can be

[0290] In addition, the method disclosed in the present invention is also applicable to the compressed reporting of other reported quantities, which may be frequency difference, delay difference, autocorrelation coefficient, etc.

[0291] The first frequency domain resource may be at least one of the following:

[0292] One or more first subbands with the best CQI quality (or SINR quality) (for example, measured by CJT codebook feedback) or one or more first subbands or multiple RBs or multiple RB groups selected by the terminal;

[0293] One or more first subbands, or multiple RBs, or multiple RB groups in the middle of the bandwidth;

[0294] The subband with the maximum length (e.g., not the last subband), or multiple RBs or multiple RB groups;

[0295] Multiple subband indices or multiple RBs or multiple RB groups configured on the network side.

[0296] Step 2: The terminal obtains the target granularity and determines the length of the basis vector.

[0297] In some embodiments, the method for determining the target particle size includes at least one of the following:

[0298] Method 1: The terminal can determine the target granularity based on the correlation of the phase differences measured in step 1. Assuming that the terminal calculates the phase difference for each RB in step 1, if the inner product of the vectors composed of the measurement values ​​of multiple RBs (e.g., T), i.e., the correlation, is greater than a threshold, the terminal determines that the multiple RBs can be jointly reported for phase difference reporting. The target granularity can be T RBs or greater. If the inner product of the vectors composed of the measurement values ​​of T RBs is less than a threshold, the terminal determines that the target granularity is less than T RBs. Alternatively, the terminal determines the correlation based on the phase variation of the measurement values ​​within multiple RBs. If the phase variation between the first measurement value (corresponding to a lower RB index or subcarrier number) and the last measurement value (corresponding to a higher RB index or subcarrier number) within T RBs exceeds a threshold, the two values ​​are considered uncorrelated, and the target granularity is less than T RBs. If the phase variation between the first measurement value (corresponding to a lower RB index or subcarrier number) and the last measurement value (corresponding to a higher RB index or subcarrier number) within T RBs is less than a threshold, the two values ​​are considered correlated, and the target granularity can be greater than or equal to T RBs.

[0299] Method 2: The terminal can determine the target granularity based on the measured delay difference. For example, if the terminal determines the delay difference between two TRPs as τ based on two measurement resources, the terminal can further determine the target granularity based on the value of τ, as shown in Table 2. For smaller τ values, the target granularity can be slightly larger; for larger τ values, the target granularity is smaller. Table 3 provides an example.

[0300] Table 2

[0301] Table 3

[0302] Method 3: The terminal determines the target granularity based on network configuration or predefined rules. For example, if the target granularity is configured for the terminal via high-level parameters, or if the network configures the terminal to measure and report time error or reciprocity error, the terminal determines the target granularity to be T RBs.

[0303] In method one and method two, when the target granularity determined based on multiple TRPs (measurement resources) is different, the terminal uses the minimum granularity corresponding to multiple TRPs as the target granularity to ensure that the measurement quantities of all TRPs can be accurately compressed and reported.

[0304] Method for determining the length of the basis vector: The length of the basis vector is determined by the first frequency domain resource and the target granularity. For example, if the first frequency domain resource contains P1 RBs and the target granularity contains T RBs, the length of the basis vector can be P1 / T.

[0305] In some embodiments, the length of the basis vector is also related to the number of reported quantities reported in each subband. Assuming that a subband reports P reported quantities, where P is configured by higher-layer parameters or determined according to predefined rules, the length of the basis vector is the number of reported quantities required to be reported in the first frequency domain resource, such as PP1 / T.

[0306] Step 3: The terminal determines the frequency domain basis vector and combining coefficient corresponding to the first frequency domain resource according to the size of the first frequency domain resource

[0307] Step 4: The terminal reports the frequency domain basis vectors and the combining coefficients to the network side device.

[0308] In some embodiments, the terminal reports a phase offset between the starting RB (or starting RB group) of other subbands or frequency domain resources (resources other than the first frequency domain resource) within the third frequency domain resource and the starting RB (or starting RB group) of the first frequency domain resource reported by the terminal. This phase offset is used for phase preprocessing of the third frequency domain resource.

[0309] FIG3 is one of the schematic diagrams of compressing and reporting the reporting amount corresponding to a continuous frequency domain resource provided by the embodiment of the present disclosure. As shown in FIG3, the grid portion represents the first frequency domain resource. The terminal only reports the phase difference corresponding to the first frequency domain resource. When pre-compensation is performed on the network side, the phase difference of other resources is first calculated based on the phase difference of the first frequency domain resource. Assuming that the sparse characteristics of the phase difference of each segment are consistent, according to the corresponding relationship between the delay difference and the phase difference, the phase of each subcarrier caused by the same delay difference is Wherein is the frequency of subcarrier k, and τ is the corresponding delay. According to the formula, it can be seen that there is a phase offset between the phase (difference) of other resources of the third frequency domain resources and the first frequency domain resources reported by the terminal. The terminal can determine the phase difference (offset) between each segment (each segment corresponds to one or more subbands, or one or more RBs or RB groups) and the starting position of the reported first frequency domain resource based on the measured phase (difference) before compression. Among them, each phase offset can be quantized with 4 bits. After determining the first frequency domain resource, the terminal determines that the number of RBs contained in other frequency domain resource segments is the same as that of the first frequency domain resource, or is less than the number of RBs of the first frequency domain resource (such as the number of RBs of the last segment of resources is less than the number of RBs of the first frequency domain resource, and the number of RBs of other segment resources is equal to the number of RBs of the first frequency domain resource).

[0310] The above segmentation methods are pre-configured by the network side, or determined by the terminal according to predefined rules, or determined by the terminal and reported to the network side.

[0311] 1. Segmentation method based on network side configuration.

[0312] For example, when the network side configures segmentation, the third frequency domain resource (the frequency domain resource corresponding to the measurement resource) is divided into O segments, and the network side indicates the value of O and the starting RB of each segment to the terminal.

[0313] Alternatively, the network side indicates the first frequency domain resource to the terminal, and the terminal determines the frequency domain resources of other segments, for example, the starting RB and the number of continuous RBs of the first frequency domain resource, or the starting first subband number and the number of continuous first subbands of the first frequency domain resource are indicated to the terminal, or the terminal is indicated by bit mapping with RB or first subband as the granularity. After determining the first frequency domain resource, the terminal determines the method for determining other segments including at least one of the following:

[0314] 1) Determine the continuous number of RBs or the first subbands of other segments based on the number of RBs or the first subbands of the first frequency domain resources, such as the number of RBs or the first subbands of other segments is less than or equal to the number of RBs or the first subbands of the first frequency domain resources; for example, except for the last segment, the number of RBs or the first subbands contained in the other segments is equal to the number of RBs or the first subbands of the first frequency domain resources, and the number of RBs or the first subbands contained in the last segment is less than the number of RBs or the first subbands of the first frequency domain resources.

[0315] 2) Determine the number of segments O according to the number of RBs or the number of first subbands of the first frequency domain resource, for example, Wherein O1 and O2 are the number of RBs or the number of first subbands included in the first frequency domain resource and the number of RBs or the number of first subbands included in the third frequency domain resource, respectively. This is a ceiling operation.

[0316] 3) Determine the starting RB index or starting first subband index of other segments according to the RB number or first subband number O2 of the first frequency domain resource, such as the starting RB index or starting first subband index of other segments is tO2, where t is a non-negative integer or a positive integer.

[0317] Segmentation methods based on predefined rules:

[0318] In the present disclosure, the first frequency domain resources and other frequency domain resources are determined by the terminal according to predefined rules, such as the number of segments O and / or the number of RBs or the number of first subbands contained in each segment pre-specified in the protocol. For example, the segmentation method is similar to the first subband division method, see Table 4 and Table 5.

[0319] Table 4 Number of RBs or first subbands contained in each segment corresponding to the third frequency domain resource size

[0320] Table 5 Number of segments corresponding to the third frequency domain resource size

[0321] The terminal determines the frequency domain resources corresponding to each segment according to the predefined number of RBs or the number of first subbands contained in each segment, or the number of segments.

[0322] 2. Terminal-determined segmentation method.

[0323] In the disclosed method, the terminal determines the number of RBs or the first subband of a first frequency domain resource based on a target granularity, and then indicates the starting RB index or the starting first subband index of the first frequency domain resource to the network. In some embodiments, the terminal indicates the segment number 0 or the number of RBs or the first subband number included in the first frequency domain resource to the network. The network can use a method similar to the "Segmentation Method Based on Network Configuration" to determine the starting RB index or the starting first subband index, as well as the number of RBs or the first subband number included, for other frequency domain resources (segments). If the target granularity is small, the terminal will report more phase differences. To reduce the length of the basis vectors and feedback overhead, the terminal can determine a larger number of segments and report only for a segment of the frequency domain resource (i.e., the first frequency domain resource). Correspondingly, if the target granularity is large, the terminal will report less phase differences. To ensure feedback accuracy, the terminal can determine a larger number of segments and still report for a segment of the frequency domain resource (i.e., the first frequency domain resource).

[0324] 3. Network side preprocessing method.

[0325] The network side recovers the uncompressed phase difference on the first frequency domain resource based on the terminal's frequency domain compression report. For example, multiple phase differences within the first frequency domain resource are determined based on the target granularity, basis vector length, etc. Assuming the target granularity is 2 RBs, each phase difference corresponds to 2 RBs of resources.

[0326] The network side preprocesses the downlink transmission corresponding to the first frequency domain resource (such as PDSCH transmission, or other reference signal transmission) using the uncompressed phase difference recovered by the terminal (multiplied with the transmit signal and then sent. In fact, this operation can also be regarded as preprocessing the precoding matrix, that is, using the uncompressed phase difference to multiply the precoding matrix to form a new transmit precoding matrix).

[0327] For other segments, the recovered uncompressed phase difference and the phase offset reported by the terminal are used for preprocessing. For example, the network side determines that each phase difference of the other segments is each uncompressed phase difference corresponding to the first frequency domain resource multiplied by the phase offset; for the last segment, the phase difference is determined based on the first N recovered phase differences and phase offsets of the first frequency domain resources.

[0328] Specific embodiment 2: The terminal compresses and reports the phase differences corresponding to multiple frequency domain resources respectively.

[0329] Option 1: All frequency domain resources use the same FD basis, and the combining coefficients of different frequency domain resources are reported independently.

[0330] Method for reporting the numerical value of the strongest coefficient in each segment: The strongest coefficient and other non-zero coefficients are quantized using different methods. For example, other non-zero coefficients are quantized using related quantization methods (maximum amplitude is less than 1). The strongest coefficient is quantized within the interval [1, a]. For example, the value of a is 1.5, 2, 4, 10, etc., which is pre-defined by the protocol or configured on the network side.

[0331] In some embodiments, the terminal reports the phase offset value of the frequency domain basis vector set of each frequency domain resource segment (the frequency domain basis vector set offsets for each frequency domain resource segment are different, but the same frequency domain basis vector set is reported to reduce overhead).

[0332] The phase offset value can be the value of the cyclic shift of the frequency domain basis vector in the phase rotation matrix

[0333] Option 2: All frequency domain resources use the same FD basis, and the combining coefficients of different frequency domain resources are jointly reported.

[0334] The joint reporting method for the strongest coefficient values ​​of each segment includes:

[0335] The terminal uses the coefficient with the largest amplitude among all segments for normalization. The coefficient with the largest amplitude does not need to be reported. The strongest coefficients of other segments can be quantized and reported using the relevant amplitude quantization method (i.e., the amplitude is less than 1).

[0336] Alternatively, the terminal uses the coefficient with the smallest amplitude in all segments for normalization, and the strongest coefficient of each frequency domain resource segment is quantized within the interval [1, a].

[0337] Option 3: Each frequency domain resource uses a different FD basis, and the combining coefficients of different frequency domain resources are reported independently.

[0338] The reporting method of the merging coefficient is the same as option 1.

[0339] Option 4: Each frequency domain resource uses a different FD basis, and the combining coefficients of different frequency domain resources are jointly reported.

[0340] The reporting method for the frequency domain basis vector set is the same as Option 3, and the reporting method for the merging coefficient is the same as Option 2.

[0341] In some embodiments, to ensure feedback accuracy, the terminal compresses the phase difference corresponding to each frequency domain resource segment before reporting. Figure 4 is a schematic diagram of separately compressing and reporting the reported quantities corresponding to multiple consecutive frequency domain resources, as provided in an embodiment of the present disclosure. As shown in Figure 4, the method for segmenting frequency domain resources is the same as in Example 1. Because each segment is compressed separately, the length of the basis vector used is shorter, significantly reducing the processing complexity of the terminal compared to a solution that compresses and reports all measurement resources together.

[0342] In some embodiments, at least one of the following methods may be used for compression reporting:

[0343] Option 1: All frequency domain resources use the same FD basis, and the combining coefficients of each frequency domain resource segment are different. The combining coefficients of different frequency domain resources are reported independently.

[0344] In related technologies, since the entire frequency domain resource is reported in a compressed form (i.e., not segmented), the terminal does not need to report the strongest coefficient among the combined coefficients (whose amplitude is predefined as 1), and only needs to report its position among multiple non-zero coefficients. In segment-based reporting, although each segment reports the combined coefficient independently, it is unreasonable to assume that the strongest coefficient among the combined coefficients of each segment is 1. Therefore, the amplitude and position of the strongest coefficient need to be reported separately for each frequency domain resource.

[0345] In this method, each reported quantity can be transmitted using a single layer (data stream), so each frequency domain resource only reports the amplitude and position of one strongest coefficient.

[0346] A reporting order of a reporting quantity may be: reporting of frequency domain basis vectors applicable to all frequency domain resources, combining coefficients of the first frequency domain resource, combining coefficients of the second frequency domain resource, ..., combining coefficients of the last frequency domain resource.

[0347] The method for determining the length of the basis vector is consistent with that in the first embodiment. The number of basis vectors can be configured by high-level signaling. When the length of the basis vector is U1 and the number of basis vectors is U2, it can be used bits, of which Indicates the number of combinations when selecting U2 frequency domain basis vectors from U1 frequency domain basis vectors. If the number of RBs, RB groups, or first subbands of the last frequency domain resource is too small (e.g., less than the value predefined in the protocol), the merging coefficient may not be reported, or may be reported in an uncompressed manner. For example, if the terminal feeds back the reported quantity (e.g., phase difference) corresponding to each target granularity, the reported quantities corresponding to multiple target granularities are not compressed.

[0348] The reporting of the combined coefficients includes at least reporting of non-zero coefficient values ​​and non-zero coefficient positions (i.e., frequency domain basis vectors or spatial domain basis vectors corresponding to the non-zero coefficients), and also includes reporting of the strongest coefficient value and the strongest coefficient position.

[0349] When reporting the strongest coefficient value, the strongest coefficient and other non-zero coefficients are quantized using different methods. For example, other non-zero coefficients are quantized using related quantization methods, that is, the maximum amplitude of each non-zero coefficient is 1. Since the strongest coefficient value is larger than other non-zero values, the strongest coefficient value can be quantized within the interval [1, a], such as the value of a is 1.5, 2, 4, 10, etc., which is pre-defined by the protocol or configured on the network side.

[0350] The position reporting of the strongest coefficient of each segment of frequency domain resources is consistent with the related technology, and the terminal reports the spatial domain basis vector and / or frequency domain basis vector corresponding to the strongest coefficient of the segment of frequency domain resources respectively.

[0351] In some cases, the basis vectors selected for each frequency domain resource may be the same, but the frequency domain basis vectors corresponding to the strongest coefficients are different. In this case, the terminal can be made to additionally report the phase offset value of each frequency domain resource to ensure that the basis vectors (including the order) of each frequency domain resource are the same, thereby reducing feedback overhead. The phase offset value refers to the indication corresponding to the phase rotation matrix (i.e., the cyclic shift operation) in the relevant technology. For example, the second frequency domain resource segment is cyclically shifted to the left by 1 time relative to the frequency domain basis vector set of the first frequency domain resource segment, and the phase offset value can be represented by -1. When the third frequency domain resource segment is cyclically shifted to the right by 4 times relative to the frequency domain basis vector set of the first frequency domain resource segment, the phase offset value can be represented by +4. The reverse is also possible, for example, a positive value is used to represent a left cyclic shift, and a negative value is used to represent a right cyclic shift.

[0352] The nth frequency domain resource segment can be used as a reference, and other frequency domain resource segments determine how many bits their frequency domain basis vector sets are offset from the nth frequency domain resource segment. The value of n can be pre-specified by the protocol or configured on the network side, or indicated to the network side by the terminal. For example, the terminal can select the reference frequency domain resource segment, so that the offset values ​​of the frequency domain basis vector sets of other frequency domain resources and the reference frequency domain resources are all positive values, or all negative values, that is, the reporting of the positive and negative signs of the offset values ​​is eliminated. In this case, the index of the reference frequency domain resource segment does not need to be reported, and the network side only needs to restore the frequency domain basis vector set of each frequency domain resource based on the phase offset value of each frequency domain resource segment.

[0353] Option 2: All frequency domain resources use the same FD basis, and the combining coefficients of each frequency domain resource segment are different. The combining coefficients of different frequency domain resources are reported jointly.

[0354] The reporting order of the reported quantities is similar to that of method 1. When reporting the combined coefficients, the terminal can jointly process the non-zero coefficients of each frequency domain resource segment, such as using the coefficient with the largest amplitude in all segments for normalization, so that the strongest combined coefficient of each frequency domain resource segment can be less than or equal to 1. In this case, the strongest coefficient of each segment can be quantized and reported using the relevant amplitude quantization method. Regarding the coefficient with the largest amplitude in all segments, the terminal can report the amplitude index corresponding to the value 1 (such as index 7 for 3-bit quantization and index 15 for 4-bit quantization), or it may not report the amplitude index, but report the index of the frequency domain resource segment corresponding to the strongest coefficient with the largest amplitude.

[0355] In addition, the coefficient with the smallest amplitude in all segments can be used for normalization, so that in each frequency domain resource segment, except for the strongest coefficient, the other non-zero coefficients are all within the value of 1. This can ensure that the other non-zero coefficients are fully quantized (compared with the solution of quantizing the coefficient with the largest amplitude in all segments, the values ​​of other non-zero coefficients are larger and the accuracy is higher); and the strongest coefficient of each frequency domain resource segment is quantized using other methods, such as consistent with Option 1, using a numerical quantization greater than 1, such as quantization within the range of [1, a].

[0356] Option 3: Each frequency domain resource uses a different FD basis. The combining coefficients of each frequency domain resource segment are also different, and the combining coefficients of different frequency domain resources are reported independently.

[0357] In this method, the terminal needs to report the frequency domain basis vector set corresponding to each segment of frequency domain resources, and the reporting order of the reported quantity can be: the frequency domain basis vector set of one frequency domain resource, the frequency domain basis vector set of the second frequency domain resource,..., the frequency domain basis vector set of the last frequency domain resource, the merging coefficient of the first frequency domain resource, the merging coefficient of the second frequency domain resource,..., the merging coefficient of the last frequency domain resource.

[0358] The reporting method for the merger coefficient is the same as Option 1.

[0359] Option 4: Each frequency domain resource uses a different FD basis, and each frequency domain resource segment has a different combining coefficient. The combining coefficients of different frequency domain resources are reported jointly.

[0360] In this method, the reporting method of the frequency domain basis vector set is the same as Option 3, and the reporting method of the combining coefficient is the same as Option 2.

[0361] In some embodiments, the network-side preprocessing method includes:

[0362] The network side recovers the uncompressed phase difference on each frequency domain resource segment based on the frequency domain compression report of the terminal. For example, multiple phase differences within each frequency domain resource are determined based on the target granularity, basis vector length, etc. Assuming the target granularity is 2 RBs, each phase difference corresponds to 2 RBs of resources.

[0363] The network side pre-processes the downlink transmission corresponding to each domain resource (such as PDSCH transmission or other reference signal transmission) using the uncompressed phase difference recovered by the terminal (multiplied with the transmit signal and then sent. In fact, this operation can also be regarded as pre-processing the precoding matrix, that is, using the uncompressed phase difference to multiply the precoding matrix to form a new transmit precoding matrix).

[0364] When different TRPs are reported in segments, the reported quantities corresponding to different TRPs in the same frequency domain segment can be reported using at least one of the following methods:

[0365] Option 1: The reported quantity corresponding to each TRP (measurement resource) uses the same FD basis, and the merging coefficients of different TRPs (measurement resources) are reported independently.

[0366] Option 2: The reported quantity corresponding to each TRP (measurement resource) uses the same FD basis, and the merging coefficients of different TRPs (measurement resources) are jointly reported.

[0367] Option 3: The reported quantity corresponding to each TRP (measurement resource) uses a different FD basis, and the merging coefficients of different TRPs (measurement resources) are reported independently.

[0368] Option 4: The reported quantity corresponding to each TRP (measurement resource) uses a different FD basis, and the merging coefficients of different TRPs (measurement resources) are jointly reported.

[0369] Specific embodiment three: The terminal compresses and reports the phase difference of multiple target RBs or target RB groups in multiple frequency domain resources.

[0370] The method for indicating the target RB or target RB group selected by the network side or the terminal includes at least one of the following:

[0371] 1) Indicates the index of the starting RB or RB group (the offset relative to the starting RB of the measurement bandwidth, or the offset relative to the CRB);

[0372] 2) Indicates the RB or RB group interval (different from the target granularity, which can be an integer multiple of the target granularity);

[0373] 3) The terminal reports an RB or RB group to which the phase difference applies (eg, target granularity).

[0374] The frequency domain resources corresponding to the reported amount may be configured on the network side or pre-specified by the protocol.

[0375] The network side configures the terminal to report on the nth RB group in each frequency domain resource segment.

[0376] The RB group information reported by the network side is at least one of the following:

[0377] Index of the starting RB or RB group (relative to the index of the starting RB of the measurement bandwidth, or relative to the index of the CRB);

[0378] The frequency domain spacing between target RB groups selected for every two frequency domain resource segments (i.e., the number of RBs, which is different from the target granularity and can be an integer multiple of the target granularity);

[0379] Alternatively, the protocol predetermines that the terminal should report on the nth RB group in each frequency domain resource segment.

[0380] In some embodiments, the terminal reports the phase offset between the other RB groups and the selected target RB group, including at least one of the following:

[0381] The phase offset between each RB group and the selected target RB group;

[0382] The phase offset between adjacent RB groups and the selected target RB group is assumed to be the same between any two RB groups, reducing feedback overhead.

[0383] In this embodiment, the segmentation method is consistent with that of Embodiment 1 and Embodiment 2. The terminal selects an RB or an RB group in each frequency domain resource segment for phase difference compression reporting. One RB group can be the number of RBs corresponding to the target granularity, that is, one phase difference is reported in each frequency domain resource segment, or it can be the number of RBs corresponding to multiple target granularities, that is, multiple phase differences are reported in each frequency domain resource segment.

[0384] FIG5 is a schematic diagram of one embodiment of the present disclosure for selecting frequency domain resources at intervals for compressed reporting of reported quantities. As shown in FIG5 , the grid portion represents the selected RB or RB group, i.e., the RB or RB group for which the reported quantity is reported. The frequency domain resources corresponding to the reported quantity (i.e., the grid portion in FIG5 ) may be pre-specified by the protocol, such as the network side instructing the terminal to report on the first RB group within each frequency domain resource segment (in which case the target granularity is one RB group), or the protocol pre-specifies that the terminal reports on the first RB group within each frequency domain resource segment.

[0385] For another example, when the network side configures the reported RB group, at least one of the following information can be configured: the index of the starting RB or RB group (relative to the index of the starting RB of the measurement bandwidth, or relative to the index of the CRB), that is, the RB group corresponding to the first orange segment in Figure 3; or, the frequency domain interval between the target RB groups selected for every two frequency domain resource segments (that is, the number of RBs, which is different from the target granularity and can be an integer multiple of the target granularity).

[0386] When the terminal performs compression reporting, the target RB groups selected in all frequency domain resource segments are jointly compressed and reported. The compression and reporting methods are consistent with related technologies.

[0387] Assuming that an RB group corresponding to a target granularity is selected in each frequency domain resource for reporting, and the intervals between RB groups selected for multiple frequency domain resources are the same, the frequency domain characteristics of other RB groups that are not reported may be consistent with those of the selected target RB group, but due to the different starting RBs of each frequency domain resource segment, the absolute phase difference is different. In order to perform preprocessing on the network side, the terminal also needs to report the phase offset between other RBs or RB groups (unselected RBs or RB groups) and the selected target RBs or RB groups. Taking the first frequency domain resource segment as an example, the phase offset between the selected target RB group (grid part) and other RB groups is shown in Figure 6, which is a schematic diagram of reporting the phase offset between the unselected RBs or RB groups and the selected RBs or RB groups provided in an embodiment of the present disclosure.

[0388] In this method, the phase offset reported by the terminal includes at least one of the following:

[0389] The phase offset between each RB group and the selected target RB group;

[0390] The phase offset between adjacent RB groups and the selected target RB group is assumed to be the same between any two RB groups, reducing feedback overhead.

[0391] Network-side preprocessing methods include:

[0392] The network side recovers the uncompressed phase difference corresponding to the selected target RB group based on the frequency domain compression report of the terminal, such as determining multiple phase differences based on the target granularity, basis vector length, etc.

[0393] The network side pre-processes the downlink transmission (such as PDSCH transmission or other reference signal transmission) corresponding to the reported RB group using the uncompressed phase difference recovered by the terminal (multiplied with the transmit signal before transmission. In fact, this operation can also be regarded as pre-processing the precoding matrix, that is, multiplying the uncompressed phase difference with the precoding matrix to form a new transmit precoding matrix).

[0394] For other RB groups, the recovered uncompressed phase difference and the phase offset reported by the terminal are used for preprocessing. For example, the network side determines that each phase difference in the frequency domain resources (RB group) corresponding to the oblique part in Figure 6 is each phase difference in the frequency domain resources (RB group) corresponding to the grid part multiplied by the phase offset 1.

[0395] Specific embodiment 4, combination solution.

[0396] A combination of multiple compressed reporting methods in specific embodiments one to specific embodiments three may be considered. For example, the terminal may report the corresponding reporting amount in the selected discontinuous RB group according to the method in embodiment three. When reporting the phase offset, multiple reporting amounts (phase offsets) in a frequency domain resource segment may also be compressed and reported (similar to the method in embodiment one, except that the physical meaning of the reporting amount is different. The reporting amount in embodiment one may be a phase difference), as shown in FIG7 . FIG7 is the second schematic diagram of the intermittent selection of some frequency domain resources for compressed reporting of the reporting amount provided in the embodiment of the present disclosure.

[0397] For another example, the terminal can report the reporting amount corresponding to the first frequency domain resource according to the method in Example 1, and in addition compress and report each phase offset (similar to the method in Example 3, except that the physical meaning of the reporting amount is different, and the reporting amount in Example 3 can be a phase difference), as shown in Figure 8. Figure 8 is the second schematic diagram of compressing and reporting the reporting amount corresponding to a continuous frequency domain resource provided by an embodiment of the present disclosure.

[0398] When multiple methods are jointly reported, the frequency domain basis vector sets of different compressed reporting methods (such as the first reporting amount (phase difference) reporting and the second reporting amount (phase offset) reporting in Figure 7) may be the same or different, and a method similar to that of Example 2 may be used for reporting, as follows:

[0399] Option 1: The first and second reported quantities report the same frequency domain basis vectors, but different combining coefficients. The combining coefficients of different reported quantities are reported independently.

[0400] Option 2: The first and second reported quantities report the same frequency domain basis vectors, but different combining coefficients. The combining coefficients of different reported quantities are reported jointly.

[0401] Option 3: The first reported amount and the second reported amount report different frequency domain basis vectors and have different combining coefficients, and the combining coefficients of different reported amounts are reported independently;

[0402] Option 4: The first reported amount and the second reported amount report different frequency domain basis vectors and have different combining coefficients, and the combining coefficients of different reported amounts are reported jointly.

[0403] In the information reporting method provided by the embodiment of the present disclosure, the terminal uses the target granularity to report the first reporting amount, and the terminal uses a segmented method to perform frequency domain compression reporting. The terminal can use a shorter frequency domain basis vector for compression reporting, thereby reducing feedback overhead and / or terminal processing complexity.

[0404] Specific embodiment 5: Compress and report different measurement resources.

[0405] Specifically, multiple TRPs are reported in frequency domain compression. When performing CJT transmission, in addition to using multiple compression reporting methods in specific embodiments 1 to 4, the terminal also needs to consider the phase difference reporting of multiple TRPs. The specific reporting method is as follows:

[0406] Method 1: Within each RB or RB group or the first subband or the second subband, the terminal measures the phase difference between each measurement resource (TRP) and the reference measurement resource (reference TRP), and the phase difference corresponding to each TRP is reported using the methods in specific embodiments 1 to 4.

[0407] Method 2: Within each RB or RB group or the first subband or the second subband, the terminal measures the phase difference between different RBs of each measurement resource (TRP), and the phase difference corresponding to each TRP is reported using the methods in specific embodiments one to four.

[0408] FIG9 is a schematic diagram of the structure of a terminal provided in an embodiment of the present disclosure. As shown in FIG9 , the terminal includes a memory 920, a transceiver 900, and a processor 910, wherein:

[0409] The memory 920 is used to store computer programs; the transceiver 900 is used to send and receive data under the control of the processor 910; the processor 910 is used to read the computer program in the memory 920 and perform the following operations:

[0410] Determining, according to a size of a first frequency domain resource, a frequency domain basis vector and a combining coefficient corresponding to the first frequency domain resource, wherein the first frequency domain resource is one or more frequency domain resources within a measurement bandwidth;

[0411] Report the frequency domain basis vectors and the combining coefficients to a network side device.

[0412] Specifically, the transceiver 900 is configured to receive and send data under the control of the processor 910 .

[0413] In FIG9 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits linked together by one or more processors represented by processor 910 and memory represented by memory 920. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 900 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. The processor 910 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 910 when performing operations.

[0414] The processor 910 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0415] In some embodiments, determining, based on the size of the first frequency domain resource, the frequency domain basis vector and the combining coefficient corresponding to the first frequency domain resource includes:

[0416] The frequency domain basis vectors and the combining coefficients are determined according to the size and target granularity of the first frequency domain resources, wherein the target granularity is less than or equal to the reporting granularity of the channel state information CSI.

[0417] In some embodiments, reporting the frequency domain basis vectors and the combining coefficients to a network-side device includes:

[0418] Based on the target granularity, the frequency domain basis vectors and the combining coefficients are reported to the network side device.

[0419] In some embodiments, the first frequency domain resource includes at least one of the following:

[0420] A continuous frequency domain resource;

[0421] Multi-band frequency domain resources;

[0422] Multiple target resource blocks RBs or target RB groups in multiple frequency domain resources.

[0423] In some embodiments, the operations further include:

[0424] Reporting a phase offset between a second frequency domain resource and the first frequency domain resource to the network side device, wherein the second frequency domain resource is a frequency domain resource within the measurement bandwidth excluding the first frequency domain resource.

[0425] In some embodiments, reporting the frequency domain basis vectors and the combining coefficients to a network-side device includes:

[0426] The frequency domain basis vectors and combining coefficients corresponding to the multiple frequency domain resources are reported in a target reporting manner, or the frequency domain basis vectors and combining coefficients corresponding to multiple reporting quantities are reported in a target reporting manner, or the frequency domain basis vectors and combining coefficients corresponding to multiple measurement resources are reported in a target reporting manner, wherein the target reporting manner includes at least one of the following:

[0427] Report the same frequency domain basis vector in the frequency domain basis vectors corresponding to frequency domain resources of different segments and the merging coefficients of frequency domain resources of different segments are reported independently, or report the same frequency domain basis vector in the frequency domain basis vectors corresponding to different reporting amounts and the merging coefficients of different reporting amounts are reported independently, or report the same frequency domain basis vector in the frequency domain basis vectors corresponding to different measurement resources and the merging coefficients of different measurement resources are reported independently;

[0428] Report the same frequency domain basis vector among the frequency domain basis vectors corresponding to frequency domain resources of different segments, and jointly report the merging coefficients of frequency domain resources of different segments, or report the same frequency domain basis vector among the frequency domain basis vectors corresponding to different reporting amounts, and jointly report the merging coefficients of different reporting amounts, or report the same frequency domain basis vector among the frequency domain basis vectors corresponding to different measurement resources, and jointly report the merging coefficients of different measurement resources;

[0429] Report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different segments of frequency domain resources, and report the merging coefficients of different segments of frequency domain resources independently, or report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different reporting amounts, and report the merging coefficients of different reporting amounts independently, or report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different measurement resources, and report the merging coefficients of different measurement resources independently;

[0430] Report different frequency domain basis vectors among the frequency domain basis vectors corresponding to frequency domain resources of different segments, and jointly report the merging coefficients of frequency domain resources of different segments, or report different frequency domain basis vectors among the frequency domain basis vectors corresponding to different reporting amounts, and jointly report the merging coefficients of different reporting amounts, or report different frequency domain basis vectors among the frequency domain basis vectors corresponding to different measurement resources, and jointly report the merging coefficients of different measurement resources;

[0431] The merging coefficient includes at least one of a non-zero coefficient value and a maximum coefficient value.

[0432] In some embodiments, the operations further include:

[0433] In the case where the first frequency domain resource includes multiple target RB groups in multiple frequency domain resources, the phase offset between the target RB group and other RB groups except the target RB group in each frequency domain resource segment is reported to the network side device, or the phase offset between the adjacent RB groups of the target RB group and the target RB group in each frequency domain resource segment is reported.

[0434] In some embodiments, the operations further include at least one of the following:

[0435] Determine the first frequency domain resource according to the number of segments indicated by the network side device and the index of the starting RB or RB group in each frequency domain resource segment; or, determine, by the terminal, other frequency domain resources in the first frequency domain resource segment according to a frequency domain resource in the first frequency domain resource segment indicated by the network side device;

[0436] Determining the first frequency domain resources according to the number of segments and / or the number of RBs or the number of first subbands contained in each segment predefined in the protocol;

[0437] The first frequency domain resources are determined according to a target granularity.

[0438] It should be noted here that the above-mentioned terminal provided in the embodiment of the present disclosure can implement all the method steps implemented by the method embodiment in which the execution subject is the terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0439] FIG10 is a schematic diagram of the structure of a network side device provided in an embodiment of the present disclosure. As shown in FIG10 , the network side device includes a memory 1020, a transceiver 1000, and a processor 1010, wherein:

[0440] The memory 1020 is used to store computer programs; the transceiver 1000 is used to send and receive data under the control of the processor 1010; the processor 1010 is used to read the computer program in the memory 1020 and perform the following operations:

[0441] Receive frequency domain basis vectors and combining coefficients corresponding to first frequency domain resources reported by the terminal, where the first frequency domain resources are one or more frequency domain resources within the measurement bandwidth;

[0442] The downlink transmission is preprocessed according to the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources, and the preprocessing is used to eliminate time synchronization errors or reciprocity errors.

[0443] Specifically, the transceiver 1000 is configured to receive and send data under the control of the processor 1010 .

[0444] In FIG10 , the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1010 and memory represented by memory 1020. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1000 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like. The processor 1010 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1010 when performing operations.

[0445] The processor 1010 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0446] In some embodiments, the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources reported by the receiving terminal include:

[0447] The receiving terminal reports the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources based on a target granularity, wherein the target granularity is less than or equal to a reporting granularity of the channel state information CSI.

[0448] In some embodiments, the first frequency domain resource includes at least one of the following:

[0449] A continuous frequency domain resource;

[0450] Multi-band frequency domain resources;

[0451] Multiple target resource blocks RBs or target RB groups in multiple frequency domain resources.

[0452] In some embodiments, the operations further include:

[0453] Receive a phase offset between a second frequency domain resource reported by the terminal and the first frequency domain resource, wherein the second frequency domain resource is a frequency domain resource within the measurement bandwidth excluding the first frequency domain resource.

[0454] It should be noted here that the above-mentioned network side device provided in the embodiment of the present disclosure can implement all the method steps implemented by the method embodiment in which the execution subject is the network side device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0455] The disclosed embodiment also provides an information reporting device that can reduce terminal feedback overhead and lower terminal processing complexity.

[0456] It can be understood that the methods and devices provided in each embodiment of the present disclosure are based on the same application concept. Since the methods and devices solve problems based on similar principles, the implementation of the devices and methods can refer to each other, and the repeated parts will not be repeated.

[0457] FIG11 is a schematic diagram of the structure of an information reporting device provided by an embodiment of the present disclosure, which is applied to a terminal. As shown in FIG11 , the information reporting device includes a determination module 1101 and a sending module 1102, wherein:

[0458] A determination module 1101 is configured to determine, based on a size of a first frequency domain resource, a frequency domain basis vector and a combining coefficient corresponding to the first frequency domain resource, wherein the first frequency domain resource is one or more frequency domain resources within a measurement bandwidth;

[0459] The sending module 1102 is configured to report the frequency domain basis vectors and the combining coefficients to a network-side device.

[0460] The information reporting device provided by the embodiment of the present disclosure uses a frequency domain resource segmentation method. The first frequency domain resource is one or more frequency domain resources within the measurement bandwidth. First, the frequency domain basis vectors and merging coefficients corresponding to the first frequency domain resource are determined according to the size of the first frequency domain resource. Then, the frequency domain basis vectors and merging coefficients corresponding to the first frequency domain resource (i.e., the segmented frequency domain resource) are reported. Since the first frequency domain resource is one or more frequency domain resources within the measurement bandwidth, rather than the entire measurement bandwidth, the length of the frequency domain basis vectors can be shortened, thereby reducing the terminal feedback overhead and the terminal processing complexity.

[0461] In some embodiments, the determining module 1101 is specifically configured to:

[0462] The frequency domain basis vectors and the combining coefficients are determined according to the size and target granularity of the first frequency domain resources, wherein the target granularity is less than or equal to the reporting granularity of the channel state information CSI.

[0463] In some embodiments, the sending module 1102 is specifically configured to:

[0464] Based on the target granularity, the frequency domain basis vectors and the combining coefficients are reported to the network side device.

[0465] In some embodiments, the target particle size is determined based on at least one of the following:

[0466] correlation of phase differences corresponding to the first frequency domain resources;

[0467] The delay difference corresponding to the first frequency domain resource and a first mapping relationship, where the first mapping relationship is used to indicate a correspondence between the delay difference and the target granularity;

[0468] Network-side configuration or predefined rules.

[0469] In some embodiments, the first frequency domain resource includes at least one of the following:

[0470] A continuous frequency domain resource;

[0471] Multi-band frequency domain resources;

[0472] Multiple target resource blocks RBs or target RB groups in multiple frequency domain resources.

[0473] In some embodiments, the first frequency domain resource includes at least one of the following:

[0474] One or more subbands whose channel quality indicator CQI quality is greater than a first threshold;

[0475] One or more subbands whose signal to interference plus noise ratio (SINR) quality is greater than a second threshold;

[0476] One or more subbands, or multiple RBs, or multiple RB groups selected by the terminal;

[0477] One or more subbands, or multiple RBs, or multiple RB groups in the middle of the bandwidth;

[0478] A subband with a maximum length, or multiple RBs or multiple RB groups;

[0479] Multiple subband indices, or multiple RBs, or multiple RB groups configured on the network side.

[0480] In some embodiments, the sending module 1102 is further configured to:

[0481] Reporting a phase offset between a second frequency domain resource and the first frequency domain resource to the network side device, wherein the second frequency domain resource is a frequency domain resource within the measurement bandwidth excluding the first frequency domain resource.

[0482] In some embodiments, the sending module 1102 is specifically configured to:

[0483] The frequency domain basis vectors and combining coefficients corresponding to the multiple frequency domain resources are reported in a target reporting manner, or the frequency domain basis vectors and combining coefficients corresponding to multiple reporting quantities are reported in a target reporting manner, or the frequency domain basis vectors and combining coefficients corresponding to multiple measurement resources are reported in a target reporting manner, wherein the target reporting manner includes at least one of the following:

[0484] Report the same frequency domain basis vector in the frequency domain basis vectors corresponding to frequency domain resources of different segments and the merging coefficients of frequency domain resources of different segments are reported independently, or report the same frequency domain basis vector in the frequency domain basis vectors corresponding to different reporting amounts and the merging coefficients of different reporting amounts are reported independently, or report the same frequency domain basis vector in the frequency domain basis vectors corresponding to different measurement resources and the merging coefficients of different measurement resources are reported independently;

[0485] Report the same frequency domain basis vector among the frequency domain basis vectors corresponding to frequency domain resources of different segments, and jointly report the merging coefficients of frequency domain resources of different segments, or report the same frequency domain basis vector among the frequency domain basis vectors corresponding to different reporting amounts, and jointly report the merging coefficients of different reporting amounts, or report the same frequency domain basis vector among the frequency domain basis vectors corresponding to different measurement resources, and jointly report the merging coefficients of different measurement resources;

[0486] Report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different segments of frequency domain resources, and report the merging coefficients of different segments of frequency domain resources independently, or report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different reporting amounts, and report the merging coefficients of different reporting amounts independently, or report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different measurement resources, and report the merging coefficients of different measurement resources independently;

[0487] Report different frequency domain basis vectors among the frequency domain basis vectors corresponding to frequency domain resources of different segments, and jointly report the merging coefficients of frequency domain resources of different segments, or report different frequency domain basis vectors among the frequency domain basis vectors corresponding to different reporting amounts, and jointly report the merging coefficients of different reporting amounts, or report different frequency domain basis vectors among the frequency domain basis vectors corresponding to different measurement resources, and jointly report the merging coefficients of different measurement resources;

[0488] The merging coefficient includes at least one of a non-zero coefficient value and a maximum coefficient value.

[0489] In some embodiments, the quantization method of the combining coefficient includes at least one of the following:

[0490] Quantize the maximum coefficient corresponding to each frequency domain resource or each reported quantity or each measured resource within a first interval, and quantize the other non-zero coefficients within a second interval;

[0491] quantizing the maximum value of the maximum coefficient corresponding to the multiple frequency domain resources or the multiple reported quantities or the multiple measurement resources to 1, and performing quantization processing on the other maximum coefficients and non-zero coefficients in the second interval;

[0492] The minimum value of the maximum coefficient corresponding to multiple frequency domain resources or multiple reported quantities or multiple measurement resources is quantized to 1, the other maximum coefficients are quantized in the first interval, and the other non-zero coefficients are quantized in the second interval.

[0493] In some embodiments, the target RB is determined based on at least one of the following:

[0494] The index of the starting RB or RB group within each frequency domain resource segment indicated by the network side device;

[0495] The nth RB or RB group within each frequency domain resource segment indicated by the network-side device;

[0496] The frequency domain spacing between target RB groups within each two frequency domain resource segments indicated by the network side device;

[0497] The protocol pre-determines that the nth RB group in each frequency domain resource segment is reported;

[0498] Wherein, n is a positive integer.

[0499] In some embodiments, the sending module 1102 is further configured to:

[0500] In the case where the first frequency domain resource includes multiple target RB groups in multiple frequency domain resources, the phase offset between the target RB group and other RB groups except the target RB group in each frequency domain resource segment is reported to the network side device, or the phase offset between the adjacent RB groups of the target RB group and the target RB group in each frequency domain resource segment is reported.

[0501] In some embodiments, the phase shift includes at least one of the following:

[0502] Quantified value of phase difference;

[0503] cyclic shift values ​​of the phase offset matrix;

[0504] Phase difference reported in compressed form.

[0505] In some embodiments, the determining module 1101 is further configured to:

[0506] Determine the first frequency domain resource according to the number of segments indicated by the network side device and the index of the starting RB or RB group in each frequency domain resource segment; or, determine, by the terminal, other frequency domain resources in the first frequency domain resource segment according to a frequency domain resource in the first frequency domain resource segment indicated by the network side device;

[0507] Determining the first frequency domain resources according to the number of segments and / or the number of RBs or the number of first subbands contained in each segment predefined in the protocol;

[0508] The first frequency domain resources are determined according to a target granularity.

[0509] Specifically, the above-mentioned information reporting device provided by the embodiment of the present disclosure can implement all the method steps implemented by the method embodiment in which the execution subject is the terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0510] FIG12 is a second structural diagram of an information reporting device provided by an embodiment of the present disclosure, which is applied to a network-side device. As shown in FIG12 , the information reporting device includes:

[0511] A receiving module 1201 is configured to receive frequency domain basis vectors and combining coefficients corresponding to first frequency domain resources reported by a terminal, where the first frequency domain resources are one or more frequency domain resources within a measurement bandwidth;

[0512] The processing module 1202 is used to pre-process the downlink transmission according to the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources, and the pre-processing is used to eliminate time synchronization errors or reciprocity errors.

[0513] In some embodiments, the receiving module 1201 is specifically configured to:

[0514] The receiving terminal reports the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources based on a target granularity, wherein the target granularity is less than or equal to a reporting granularity of the channel state information CSI.

[0515] In some embodiments, the target particle size is determined based on at least one of the following:

[0516] correlation of phase differences corresponding to the first frequency domain resources;

[0517] The delay difference corresponding to the first frequency domain resource and a first mapping relationship, where the first mapping relationship is used to indicate a correspondence between the delay difference and the target granularity;

[0518] Network-side configuration or predefined rules.

[0519] In some embodiments, the first frequency domain resource includes at least one of the following:

[0520] A continuous frequency domain resource;

[0521] Multi-band frequency domain resources;

[0522] Multiple target resource blocks RBs or target RB groups in multiple frequency domain resources.

[0523] In some embodiments, the first frequency domain resource includes at least one of the following:

[0524] One or more subbands whose channel quality indicator CQI quality is greater than a first threshold;

[0525] One or more subbands whose signal to interference plus noise ratio (SINR) quality is greater than a second threshold;

[0526] One or more subbands, or multiple RBs, or multiple RB groups selected by the terminal;

[0527] One or more subbands, or multiple RBs, or multiple RB groups in the middle of the bandwidth;

[0528] A subband with a maximum length, or multiple RBs or multiple RB groups;

[0529] Multiple subband indices, or multiple RBs, or multiple RB groups configured on the network side.

[0530] In some embodiments, the receiving module 1201 is further configured to:

[0531] Receive a phase offset between a second frequency domain resource reported by the terminal and the first frequency domain resource, wherein the second frequency domain resource is a frequency domain resource within the measurement bandwidth excluding the first frequency domain resource.

[0532] In some embodiments, the target RB is determined based on at least one of the following:

[0533] The index of the starting RB or RB group within each frequency domain resource segment indicated by the network side device;

[0534] The nth RB or RB group within each frequency domain resource segment indicated by the network-side device;

[0535] The frequency domain spacing between target RB groups within each two frequency domain resource segments indicated by the network side device;

[0536] The protocol pre-determines that the nth RB group in each frequency domain resource segment is reported;

[0537] Wherein, n is a positive integer.

[0538] Specifically, the above-mentioned information reporting device provided by the embodiment of the present disclosure can implement all the method steps implemented by the method embodiment in which the execution subject is the network side device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0539] It should be noted that the division of units / modules in the above-mentioned embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The above-mentioned integrated units may be implemented in the form of hardware or software functional units.

[0540] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0541] In some embodiments, a non-transitory readable storage medium is further provided, wherein the non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the information reporting method provided by the above-mentioned method embodiments.

[0542] Specifically, the above-mentioned non-transitory readable storage medium provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0543] It should be noted that the non-transitory readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid-state drives (SSDs)), etc.

[0544] In some embodiments, a processor-readable storage medium is further provided, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the information reporting method provided by the above-mentioned method embodiments.

[0545] Specifically, the processor-readable storage medium provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiments and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0546] In some embodiments, a computer-readable storage medium is further provided, wherein the computer-readable storage medium stores a computer program, and the computer program is used to enable a computer to execute the information reporting method provided by the above-mentioned method embodiments.

[0547] Specifically, the above-mentioned computer-readable storage medium provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0548] In some embodiments, a communication device is further provided, in which a computer program is stored. The computer program is used to enable the communication device to execute the information reporting method provided by the above-mentioned method embodiments.

[0549] Specifically, the above-mentioned communication device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0550] In some embodiments, a chip product is further provided, wherein a computer program is stored in the chip product, and the computer program is used to enable the chip product to execute the information reporting method provided by the above-mentioned method embodiments.

[0551] Specifically, the above-mentioned chip product provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0552] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0553] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0554] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0555] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0556] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.

Claims

1. An information reporting method, applied to a terminal, comprising: Determining, according to a size of a first frequency domain resource, a frequency domain basis vector and a combining coefficient corresponding to the first frequency domain resource, wherein the first frequency domain resource is one or more frequency domain resources within a measurement bandwidth; Report the frequency domain basis vectors and the combining coefficients to a network side device.

2. The information reporting method according to claim 1, wherein: The determining, according to the size of the first frequency domain resource, a frequency domain basis vector and a combining coefficient corresponding to the first frequency domain resource includes: The frequency domain basis vectors and the combining coefficients are determined according to the size and target granularity of the first frequency domain resources, wherein the target granularity is less than or equal to the reporting granularity of the channel state information CSI.

3. The information reporting method according to claim 2, wherein: The reporting the frequency domain basis vectors and the combining coefficients to the network side device includes: Based on the target granularity, the frequency domain basis vectors and the combining coefficients are reported to the network side device.

4. The information reporting method according to claim 2 or 3, wherein: The target particle size is determined based on at least one of the following: correlation of phase differences corresponding to the first frequency domain resources; The delay difference corresponding to the first frequency domain resource and a first mapping relationship, where the first mapping relationship is used to indicate a correspondence between the delay difference and the target granularity; Network-side configuration or predefined rules.

5. The information reporting method according to any one of claims 1 to 4, wherein: The first frequency domain resource includes at least one of the following: A continuous frequency domain resource; Multi-band frequency domain resources; Multiple target resource blocks RBs or target RB groups in multiple frequency domain resources.

6. The information reporting method according to any one of claims 1 to 4, wherein: The first frequency domain resource includes at least one of the following: One or more subbands whose channel quality indicator CQI quality is greater than a first threshold; One or more subbands whose signal to interference plus noise ratio (SINR) quality is greater than a second threshold; One or more subbands, or multiple RBs, or multiple RB groups selected by the terminal; One or more subbands, or multiple RBs, or multiple RB groups in the middle of the bandwidth; A subband with a maximum length, or multiple RBs or multiple RB groups; Multiple subband indices, or multiple RBs, or multiple RB groups configured on the network side.

7. The information reporting method according to claim 6, wherein: The method further comprises: Reporting a phase offset between a second frequency domain resource and the first frequency domain resource to the network side device, wherein the second frequency domain resource is a frequency domain resource within the measurement bandwidth excluding the first frequency domain resource.

8. The information reporting method according to claim 5, wherein: The reporting the frequency domain basis vectors and the combining coefficients to the network side device includes: The frequency domain basis vectors and combining coefficients corresponding to the multiple frequency domain resources are reported in a target reporting manner, or the frequency domain basis vectors and combining coefficients corresponding to multiple reporting quantities are reported in a target reporting manner, or the frequency domain basis vectors and combining coefficients corresponding to multiple measurement resources are reported in a target reporting manner, wherein the target reporting manner includes at least one of the following: Report the same frequency domain basis vector in the frequency domain basis vectors corresponding to frequency domain resources of different segments and the merging coefficients of frequency domain resources of different segments are reported independently, or report the same frequency domain basis vector in the frequency domain basis vectors corresponding to different reporting amounts and the merging coefficients of different reporting amounts are reported independently, or report the same frequency domain basis vector in the frequency domain basis vectors corresponding to different measurement resources and the merging coefficients of different measurement resources are reported independently; Report the same frequency domain basis vector among the frequency domain basis vectors corresponding to frequency domain resources of different segments, and jointly report the merging coefficients of frequency domain resources of different segments, or report the same frequency domain basis vector among the frequency domain basis vectors corresponding to different reporting amounts, and jointly report the merging coefficients of different reporting amounts, or report the same frequency domain basis vector among the frequency domain basis vectors corresponding to different measurement resources, and jointly report the merging coefficients of different measurement resources; Report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different segments of frequency domain resources, and report the merging coefficients of different segments of frequency domain resources independently, or report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different reporting amounts, and report the merging coefficients of different reporting amounts independently, or report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different measurement resources, and report the merging coefficients of different measurement resources independently; Report different frequency domain basis vectors among the frequency domain basis vectors corresponding to frequency domain resources of different segments, and jointly report the merging coefficients of frequency domain resources of different segments, or report different frequency domain basis vectors among the frequency domain basis vectors corresponding to different reporting amounts, and jointly report the merging coefficients of different reporting amounts, or report different frequency domain basis vectors among the frequency domain basis vectors corresponding to different measurement resources, and jointly report the merging coefficients of different measurement resources; The merging coefficient includes at least one of a non-zero coefficient value and a maximum coefficient value.

9. The information reporting method according to claim 5, wherein: The quantization method of the merging coefficient includes at least one of the following: Quantize the maximum coefficient corresponding to each frequency domain resource or each reported quantity or each measured resource within a first interval, and quantize the other non-zero coefficients within a second interval; quantizing the maximum value of the maximum coefficient corresponding to the multiple frequency domain resources or the multiple reported quantities or the multiple measurement resources to 1, and performing quantization processing on the other maximum coefficients and non-zero coefficients in the second interval; The minimum value of the maximum coefficient corresponding to multiple frequency domain resources or multiple reported quantities or multiple measurement resources is quantized to 1, the other maximum coefficients are quantized in the first interval, and the other non-zero coefficients are quantized in the second interval.

10. The information reporting method according to claim 5, wherein: The target RB is determined based on at least one of the following: The index of the starting RB or RB group within each frequency domain resource segment indicated by the network side device; The nth RB or RB group within each frequency domain resource segment indicated by the network-side device; The frequency domain spacing between target RB groups within each two frequency domain resource segments indicated by the network side device; The protocol pre-determines that the nth RB group in each frequency domain resource segment is reported; Wherein, n is a positive integer.

11. The information reporting method according to claim 5, wherein: The method further comprises: In the case where the first frequency domain resource includes multiple target RB groups in multiple frequency domain resources, the phase offset between the target RB group and other RB groups except the target RB group in each frequency domain resource segment is reported to the network side device, or the phase offset between the adjacent RB groups of the target RB group and the target RB group in each frequency domain resource segment is reported.

12. The information reporting method according to claim 7 or 11, wherein: The phase shift includes at least one of the following: Quantified value of phase difference; cyclic shift values of the phase offset matrix; Phase difference reported in compressed form.

13. The information reporting method according to any one of claims 5 to 12, wherein: The method further comprises at least one of the following: Determine the first frequency domain resource according to the number of segments indicated by the network side device and the index of the starting RB or RB group in each frequency domain resource segment; or, determine, by the terminal, other frequency domain resources in the first frequency domain resource segment according to a frequency domain resource in the first frequency domain resource segment indicated by the network side device; Determining the first frequency domain resources according to the number of segments and / or the number of RBs or the number of first subbands contained in each segment predefined in the protocol; The first frequency domain resources are determined according to a target granularity.

14. An information reporting method, applied to a network-side device, comprising: Receive frequency domain basis vectors and combining coefficients corresponding to first frequency domain resources reported by the terminal, where the first frequency domain resources are one or more frequency domain resources within the measurement bandwidth; The downlink transmission is preprocessed according to the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources, and the preprocessing is used to eliminate time synchronization errors or reciprocity errors.

15. The information reporting method according to claim 14, wherein: The frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resource reported by the receiving terminal include: The receiving terminal reports the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources based on a target granularity, wherein the target granularity is less than or equal to a reporting granularity of the channel state information CSI.

16. The information reporting method according to claim 15, wherein: The target particle size is determined based on at least one of the following: correlation of phase differences corresponding to the first frequency domain resources; The delay difference corresponding to the first frequency domain resource and a first mapping relationship, where the first mapping relationship is used to indicate a correspondence between the delay difference and the target granularity; Network-side configuration or predefined rules.

17. The information reporting method according to any one of claims 14 to 16, wherein: The first frequency domain resource includes at least one of the following: A continuous frequency domain resource; Multi-band frequency domain resources; Multiple target resource blocks RBs or target RB groups in multiple frequency domain resources.

18. The information reporting method according to any one of claims 14 to 16, wherein: The first frequency domain resource includes at least one of the following: One or more subbands whose channel quality indicator CQI quality is greater than a first threshold; One or more subbands whose signal to interference plus noise ratio (SINR) quality is greater than a second threshold; One or more subbands, or multiple RBs, or multiple RB groups selected by the terminal; One or more subbands, or multiple RBs, or multiple RB groups in the middle of the bandwidth; A subband with a maximum length, or multiple RBs or multiple RB groups; Multiple subband indices, or multiple RBs, or multiple RB groups configured on the network side.

19. The information reporting method according to claim 18, wherein: The method further comprises: Receive a phase offset between a second frequency domain resource reported by the terminal and the first frequency domain resource, wherein the second frequency domain resource is a frequency domain resource within the measurement bandwidth excluding the first frequency domain resource.

20. The information reporting method according to claim 17, wherein: The target RB is determined based on at least one of the following: The index of the starting RB or RB group within each frequency domain resource segment indicated by the network side device; The nth RB or RB group within each frequency domain resource segment indicated by the network-side device; The frequency domain spacing between target RB groups within each two frequency domain resource segments indicated by the network side device; The protocol pre-determines that the nth RB group in each frequency domain resource segment is reported; Wherein, n is a positive integer.

21. A terminal comprising a memory, a transceiver and a processor; The memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; and the processor is used to read the computer program in the memory and perform the following operations: According to the size of the first frequency domain resource, the frequency domain basis vector and the combining coefficient corresponding to the first frequency domain resource are determined, wherein: The first frequency domain resource is one or more frequency domain resources within the measurement bandwidth; Report the frequency domain basis vectors and the combining coefficients to a network side device.

22. The terminal according to claim 21, wherein: The determining, according to the size of the first frequency domain resource, a frequency domain basis vector and a combining coefficient corresponding to the first frequency domain resource includes: The frequency domain basis vectors and the combining coefficients are determined according to the size and target granularity of the first frequency domain resources, wherein the target granularity is less than or equal to the reporting granularity of the channel state information CSI.

23. The terminal according to claim 22, wherein: The reporting the frequency domain basis vectors and the combining coefficients to the network side device includes: Based on the target granularity, the frequency domain basis vectors and the combining coefficients are reported to the network side device.

24. The terminal according to any one of claims 21 to 23, wherein: The first frequency domain resource includes at least one of the following: A continuous frequency domain resource; Multi-band frequency domain resources; Multiple target resource blocks RBs or target RB groups in multiple frequency domain resources.

25. The terminal according to any one of claims 21 to 23, wherein: The operations further include: Reporting a phase offset between a second frequency domain resource and the first frequency domain resource to the network side device, wherein the second frequency domain resource is a frequency domain resource within the measurement bandwidth excluding the first frequency domain resource.

26. The terminal according to claim 24, wherein: The reporting the frequency domain basis vectors and the combining coefficients to the network side device includes: The frequency domain basis vectors and combining coefficients corresponding to the multiple frequency domain resources are reported in a target reporting manner, or the frequency domain basis vectors and combining coefficients corresponding to multiple reporting quantities are reported in a target reporting manner, or the frequency domain basis vectors and combining coefficients corresponding to multiple measurement resources are reported in a target reporting manner, wherein the target reporting manner includes at least one of the following: Report the same frequency domain basis vector in the frequency domain basis vectors corresponding to frequency domain resources of different segments and the merging coefficients of frequency domain resources of different segments are reported independently, or report the same frequency domain basis vector in the frequency domain basis vectors corresponding to different reporting amounts and the merging coefficients of different reporting amounts are reported independently, or report the same frequency domain basis vector in the frequency domain basis vectors corresponding to different measurement resources and the merging coefficients of different measurement resources are reported independently; Report the same frequency domain basis vector among the frequency domain basis vectors corresponding to frequency domain resources of different segments, and jointly report the merging coefficients of frequency domain resources of different segments, or report the same frequency domain basis vector among the frequency domain basis vectors corresponding to different reporting amounts, and jointly report the merging coefficients of different reporting amounts, or report the same frequency domain basis vector among the frequency domain basis vectors corresponding to different measurement resources, and jointly report the merging coefficients of different measurement resources; Report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different segments of frequency domain resources, and report the merging coefficients of different segments of frequency domain resources independently, or report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different reporting amounts, and report the merging coefficients of different reporting amounts independently, or report different frequency domain basis vectors in the frequency domain basis vectors corresponding to different measurement resources, and report the merging coefficients of different measurement resources independently; Report different frequency domain basis vectors among the frequency domain basis vectors corresponding to frequency domain resources of different segments, and jointly report the merging coefficients of frequency domain resources of different segments, or report different frequency domain basis vectors among the frequency domain basis vectors corresponding to different reporting amounts, and jointly report the merging coefficients of different reporting amounts, or report different frequency domain basis vectors among the frequency domain basis vectors corresponding to different measurement resources, and jointly report the merging coefficients of different measurement resources; The merging coefficient includes at least one of a non-zero coefficient value and a maximum coefficient value.

27. The terminal according to claim 24, wherein: The operations further include: In the case where the first frequency domain resource includes multiple target RB groups in multiple frequency domain resources, the phase offset between the target RB group and other RB groups except the target RB group in each frequency domain resource segment is reported to the network side device, or the phase offset between the adjacent RB groups of the target RB group and the target RB group in each frequency domain resource segment is reported.

28. The terminal according to any one of claims 24 to 27, wherein: The operations also include at least one of the following: Determine the first frequency domain resource according to the number of segments indicated by the network side device and the index of the starting RB or RB group in each frequency domain resource segment; or, determine, by the terminal, other frequency domain resources in the first frequency domain resource segment according to a frequency domain resource in the first frequency domain resource segment indicated by the network side device; Determining the first frequency domain resources according to the number of segments and / or the number of RBs or the number of first subbands contained in each segment predefined in the protocol; The first frequency domain resources are determined according to a target granularity.

29. A network side device comprising a memory, a transceiver and a processor; The memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; and the processor is used to read the computer program in the memory and perform the following operations: The frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resource reported by the receiving terminal are: The first frequency domain resource is one or more frequency domain resources within the measurement bandwidth; The downlink transmission is preprocessed according to the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources, and the preprocessing is used to eliminate time synchronization errors or reciprocity errors.

30. The network side device according to claim 29, wherein: The frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resource reported by the receiving terminal include: The receiving terminal reports the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources based on a target granularity, wherein the target granularity is less than or equal to a reporting granularity of the channel state information CSI.

31. The network side device according to claim 29 or 30, wherein: The first frequency domain resource includes at least one of the following: A continuous frequency domain resource; Multi-band frequency domain resources; Multiple target resource blocks RBs or target RB groups in multiple frequency domain resources.

32. The network side device according to claim 31, wherein: The operations further include: Receive a phase offset between a second frequency domain resource reported by the terminal and the first frequency domain resource, wherein the second frequency domain resource is a frequency domain resource within the measurement bandwidth excluding the first frequency domain resource.

33. An information reporting device, applied to a terminal, comprising: a determination module, configured to determine, based on a size of a first frequency domain resource, a frequency domain basis vector and a combining coefficient corresponding to the first frequency domain resource, wherein the first frequency domain resource is one or more frequency domain resources within a measurement bandwidth; The sending module is used to report the frequency domain basis vectors and the combining coefficients to the network side device.

34. An information reporting device, applied to a network-side device, comprising: A receiving module, configured to receive frequency domain basis vectors and combining coefficients corresponding to first frequency domain resources reported by a terminal, wherein the first frequency domain resources are one or more frequency domain resources within a measurement bandwidth; A processing module is used to pre-process the downlink transmission according to the frequency domain basis vectors and combining coefficients corresponding to the first frequency domain resources, and the pre-processing is used to eliminate time synchronization errors or reciprocity errors.

35. A non-transitory readable storage medium storing a computer program, wherein the computer program is used to enable a processor to execute the information reporting method described in any one of claims 1 to 13, or execute the information reporting method described in any one of claims 14 to 20.

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