WO2019232682A1 - Codebook processing method and system, network device, user equipment, and storage medium - Google Patents

Abstract

Disclosed is a codebook processing method, comprising: a network device sends a first request message to a user equipment (UE), the first request message being used for requesting the UE to report partial channel information in all channel information; the network device receives the partial channel information reported by the UE. Also disclosed are a codebook processing system, a network device, a UE, and a storage medium.

Description

Codebook processing method, system, network equipment, user equipment and storage medium Technical field

The present invention relates to the field of wireless communication technologies, and in particular, to a codebook processing method, system, network device, user equipment, and storage medium.

Background technique

Fifth Generation (5 ^th Generation, 5G) new radio (New Radio, NR) system, Type Ⅱ codebook to rank1 / 2 transmission mode reported by a user equipment (User Equipment, UE) to the network side, W represents the code this,

In the existing protocol, the tap coefficients of each layer of data are independently encoded and fed back through subbands. When the user equipment reports W, there is a problem that the reported data fails. At present, there is no good solution.

Summary of the Invention

To solve the above technical problems, embodiments of the present invention provide a codebook processing method, system, network device, user equipment, and storage medium, so that when the user device fails to report the codebook once, the network side can also obtain part of the channel information.

In a first aspect, an embodiment of the present invention provides a codebook processing method, including: a network device sends a first request message, where the first request message is used to request a UE to report part of channel information in all channel information; and receiving the UE The reported partial channel information; the partial channel information is used by the network device to determine a precoding matrix constituting the codebook.

According to a second aspect, an embodiment of the present invention further provides a codebook processing method, including: the UE receives a first request message, and the first request message requests the UE to report a part of channel information of all channel information to a network device;

Based on the first request message, part of the channel information is reported; the part of the channel information is used by the network device to determine a precoding matrix constituting the codebook.

According to a third aspect, an embodiment of the present invention provides a network device, including:

The sending unit is configured to send a first request message, where the first request message is used to request the user equipment UE to report part of the channel information among all the channel information;

The first receiving unit is configured to receive part of the channel information reported by the UE; the part of the channel information is used by the network device to determine a precoding matrix constituting the codebook.

According to a fourth aspect, an embodiment of the present invention provides a UE, including: a second receiving unit configured to receive a first request message, where the first request message requests the UE to report a part of channel information of all channel information to a network device ;

The reporting unit is configured to report part of the channel information based on the first request message; the part of the channel information is used by the network device to determine a precoding matrix constituting the codebook.

In a fifth aspect, an embodiment of the present invention provides a network device, including: a processor and a memory for storing a computer program capable of running on the processor, where:

When the processor is used to run the computer program, the processor executes the steps of the network device to implement a codebook processing method.

According to a sixth aspect, an embodiment of the present invention further provides a user equipment, including: a processor and a memory for storing a computer program capable of running on the processor, where:

When the processor is used to run the computer program, execute the steps of the UE-implemented codebook processing method.

In a seventh aspect, an embodiment of the present invention further provides a codebook processing method, where the method includes:

The network device sends a first request message to the user equipment UE; the UE receives the first request message, and reports a part of the channel information based on the first request message; the part of the channel information is used by the network device to determine what constitutes the A precoding matrix of a codebook; the network device receives the partial channel information.

According to an eighth aspect, an embodiment of the present invention further provides a codebook processing system. The system includes: a network device configured to send a first request message to a UE, and receive part of the channel information sent by the UE; the part of the channel information Used by the network device to determine a precoding matrix constituting the codebook;

The UE is configured to receive the first request message sent by the network device, and report part of the channel information to the network device based on the first request message.

In a ninth aspect, an embodiment of the present invention further provides a storage medium that stores an executable program. When the executable program is executed by a processor, the foregoing codebook processing method is implemented.

The codebook processing method, system, network device, UE, and storage medium provided by the embodiments of the present invention, each time the UE reports part of the channel information to the network device, so that when part of the channel information reported by the UE is lost, the network side can also receive the UE The reported channel information of other parts increases robustness.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an optional processing flow 1 of a codebook processing method applied to a network device according to an embodiment of the present invention; FIG.

FIG. 2 is an optional processing flow 1 of a codebook processing method applied to a UE according to an embodiment of the present invention; FIG.

3 is an optional processing flow of a codebook processing method applied to a UE and a network device according to an embodiment of the present invention;

FIG. 4 is a schematic flowchart of a non-periodic reporting of partial channel information by a UE according to an embodiment of the present invention; FIG.

5 is a schematic flowchart of a UE quasi-periodically reporting part of channel information according to an embodiment of the present invention;

6 is a schematic flowchart of a codebook processing method based on an optional configuration 1 according to an embodiment of the present invention;

FIG. 7 is a schematic flowchart of a codebook processing method based on an optional configuration two according to an embodiment of the present invention; FIG.

8 is a schematic flowchart of a codebook processing method based on an optional configuration three according to an embodiment of the present invention;

9 is a schematic flowchart of a codebook processing method based on an optional configuration four according to an embodiment of the present invention;

10 is a schematic flowchart of a codebook processing method based on an optional configuration five according to an embodiment of the present invention;

11 is a schematic diagram of an optional composition structure of a network device according to an embodiment of the present invention;

12 is a schematic diagram of an optional composition structure of a UE according to an embodiment of the present invention;

FIG. 13 is a schematic diagram of a hardware composition and structure of an electronic device according to an embodiment of the present invention.

Detailed ways

Before the codebook processing method described in the embodiment of the present invention is described in detail, the codebook is briefly introduced first.

A codebook is a set of precoding matrices reported by a UE to a network device. The precoding matrix is expressed as

It can be seen that the codebook consists of two parts;

It is a block-diagonal matrix composed of two-part two-dimensional Fourier transform (2D-DFT) vector groups, which is used to indicate Multiple-Input Multiple-Output (MIMO) The direction of the channel, and the dual beam antenna uses the same beam direction. B is a set of base vectors composed of 2D-DFT column vectors. The number of vectors L of the base vectors is configured by Radio Resource Control (RRC). Therefore, B = [b ₁ b ₂ ... b _L ] . Among them, b is a 2D-DFT vector with dimensions N ₁ N ₂ × 1, N ₁ and N ₂ represent the number of ports in the horizontal direction and the vertical direction of the network-side antenna array, and the matrix W ₁ is fed back through broadband.

W ₂ = [c ₁ c ₂ ], consisting of weighting coefficients representing spatial beams. Taking rank2 transmission as an example, c ₁ and c ₂ are the tap coefficients of the first layer data and the tap coefficients of the second layer data, including the amplitude. And phase information; weighted tap coefficients with dimensions of 2L × 1:

In order to understand the features and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference only and are not intended to limit the embodiments of the present invention.

During the implementation of the codebook processing method, the inventor found that the failure of the user equipment to report data to the network device was due to the user equipment reporting all the channel information to the network device at one time, and the network device was able to obtain all the channel information once it successfully received it. However, when the user equipment fails to report all the channel information, the network equipment cannot obtain any channel information. Based on this, the inventor proposes a technical solution of an embodiment of the present invention.

An optional processing flow 1 of a codebook processing method applied to a network device according to an embodiment of the present invention, as shown in FIG. 1, includes the following steps:

Step S101: The network device sends a first request message.

In an embodiment, the network device sends a first request message to the UE, where the first request message is used to request the UE to report part of the channel information in all channel information;

In the embodiment of the present invention, the network device requests the UE to report all the channel information to the network device multiple times, and only reports a part of the channel information in the total channel information each time. Part of the channel information reported by the UE multiple times may correspond to the same layer or different layers; in this way, it can support not only the rank1 / 2 transmission mode, but also the rank3 / 4 transmission mode or a higher multi-stream transmission mode. . When the UE reports part of the channel information, different accuracy can be adopted for different layers; thus, a balance between network overhead and network performance is achieved.

Step S102: The network device receives part of the channel information reported by the UE.

In an embodiment, the partial channel information includes: a beam matrix index, a linear merging matrix, and a first channel quality indication (Channel Quality Indication (CQI)); the first CQI refers to a partial channel received by the network device this time. The CQI of the information, that is, the CQI corresponding to the beam matrix index and the linear merge matrix. The partial channel information is used by the network device to determine a precoding matrix constituting the codebook.

In an embodiment, when the network device receives part of the channel information reported by the UE for the first time, the part of the channel information further includes a rank indication (RI) for indicating a physical downlink shared channel (Physical Downlink Shared Channel). PDSCH). When the network device does not receive part of the channel information reported by the UE for the first time, the part of the channel information may or may not include the RI; the value of the RI is 1, 2, 3, 4, 5, 6, and 7 And any of 8.

In an embodiment, the network device sends the first request message through downlink control signaling (DCI).

The second optional processing flow of the codebook processing method applied to the network device provided by the embodiment of the present invention is similar to the first optional processing flow of the codebook processing method applied to the network device, except that after step S102, Also includes steps:

Step S103: The network device determines a precoding matrix and a second CQI based on the received partial channel information.

In the embodiment of the present invention, the second CQI is a CQI corresponding to the precoding matrix.

In an embodiment, each time a piece of channel information received by a network device corresponds to data of the same layer, a product of a beam matrix corresponding to each received beam matrix index and a linear merging matrix is calculated; and a sum of the obtained products is calculated Determined as the precoding matrix.

For example, if the network device receives part of the channel information reported by the UE 4 times, and each part of the channel information reported by the UE corresponds to layer 1, 2, and 3 data, the network device calculates the beam matrix reported by the UE each time. The product of the beam matrix corresponding to the index and the linear merge matrix reported by the UE, and the sum of the obtained products is determined as the precoding matrix.

In another embodiment, each time part of the channel information received by the network device corresponds to data of different layers, the product of the beam matrix corresponding to the beam matrix index received each time and the linear merging matrix is calculated, and the calculation of the different layers is cascaded. The product of the beam matrix and the linear merging matrix is the precoding matrix.

For example, the network device receives partial channel information reported by the UE 4 times; and the partial channel information reported by the UE each time corresponds to different layer data; then the network device calculates the beam matrix corresponding to the beam matrix index reported by the UE each time A product of the linear merging matrix and the product of the beam matrix index corresponding to the beam matrix index of each layer reported by the UE and the linear merging matrix are concatenated, and the concatenated matrix is determined as the precoding matrix. In the embodiment of the present invention, part of the channel information reported by the UE each time corresponds to different layer data. It can be understood that part of the channel information reported each time corresponds to not exactly the same layer data; for example, part of the channel information reported by the UE for the first time. Corresponding to layer 1 and layer 2 data, part of the channel information reported by the UE for the second time corresponds to layer 2 and layer 3 data; it can also be understood that part of the channel information reported each time corresponds to completely different layer data, For example, part of the channel information reported by the UE for the first time corresponds to layer 1 data, part of the channel information reported by the UE for the second time corresponds to layer 2 data, and part of channel information reported by the UE for the third time corresponds to layer 3 data.

Each time the UE reports part of the channel information corresponding to different layer data, it is determined that the precoding matrix includes at least the following two methods: the first method, if the UE first reports part of the channel information of the first layer, the second report Partial channel information of the second layer, partial channel information of the third layer is reported for the third time, and partial channel information of the fourth layer is reported for the fourth time. Then, the beam matrix corresponding to the beam matrix index of the first layer and the linear merge matrix are reported. Product of the beam matrix corresponding to the beam matrix index of the second layer and the linear merge matrix, product of the beam matrix corresponding to the beam matrix index of the third layer and the linear merge matrix and the beam matrix corresponding to the beam matrix index of the fourth layer The product is concatenated with the product of the linear merging matrix, and the matrix obtained by the concatenation is determined as the precoding matrix. In the second method, if the UE reports partial channel information of the first layer and the second layer for the first time, and reports partial channel information of the second layer and the third layer for the second time; first, calculate the beam matrix index of the first layer respectively The product of the corresponding beam matrix and linear merge matrix, the product of the beam matrix index of the third layer and the product of the linear merge matrix, and the beam matrix index corresponding to the beam matrix index of the second layer reported for the first time. Product and the product of the beam matrix corresponding to the beam matrix index of the second layer reported for the second time and the linear merge matrix; secondly, the product of the beam matrix corresponding to the beam matrix index of the second layer reported for the first time and the linear merge matrix And the product of the beam matrix index corresponding to the beam matrix index of the second layer and the linear merging matrix is calculated (such as merging) to obtain the beam matrix corresponding to the beam matrix index of the second layer and the linear merging matrix. Product; Finally, the product of the beam matrix corresponding to the beam matrix index of the first layer and the linear merge matrix, and the beam matrix and line corresponding to the beam matrix index of the third layer Beamforming matrix product of a matrix of linear combination of the product and the beam matrix index layer after the second matrix corresponding to the combined operation cascade, cascade resulting matrix is the precoding matrix is determined.

In an embodiment, the network device calculates the second CQI based on the beam matrix corresponding to the beam matrix index, the linear merge matrix, and the first CQI. An optional implementation manner for calculating the second CQI is: the first time the network device receives the precoding matrix reported by the UE as W1, and CQI1, and the second time the network device receives the precoding matrix reported by the UE as W2, and CQI2; , CQI1 is the first CQI received for the first time, and CQI2 is the first CQI received for the second time;

Where H is the channel response matrix and σ ² is the noise variance.

When W1 and W2 belong to the projection of the same channel eigenvector on two orthogonal beams, power normalization is performed to obtain the following formula:

Another optional implementation manner for calculating the second CQI is: each time the reported channel information corresponds to the projection of a different layer on the beam matrix, the first time the network device receives the precoding matrix reported by the UE as W1, and CQI1, The second time the network device receives the coding matrix reported by the UE with W2 and CQI2; CQI1 is the first CQI received for the first time, and CQI2 is the first CQI received for the second time;

W = [W ₁ W ₂ ] (5)

Because the channel information received by the network device each time corresponds to a different layer, and the type II quantization granularity is small, when L is large, it can be considered that there is no inter-stream interference, and the layer to codeword is combined by ESM to obtain the following formula:

CQI = ESM (CQI ₁ , CQI ₂ ) (6)

The third optional processing flow of the codebook processing method applied to the network device provided by the embodiment of the present invention is similar to the first optional processing flow of the codebook processing method applied to the network device, except that before step S101, It includes the following steps:

Step S301: The network device and the UE agree to report parameters.

Here, the reporting parameters include at least: the maximum number of times N of channel information is reported and the layer for each reporting of the corresponding RI.

Step S302: The network device sends the beam selection information of the UE through radio resource control.

Here, the beam selection information is used by the UE to report the partial channel information to the network device; the beam selection information includes: the number of columns L _i of the beam matrix reported by the UE each time; the number of columns of the beam matrix reported each time may be The same, that is, the number of columns of the beam matrix reported each time is a constant; the number of columns of the beam matrix reported each time may also be different.

The fourth optional processing flow of the codebook processing method applied to the network device provided by the embodiment of the present invention is similar to the first optional processing flow of the codebook processing method applied to the network device, except that after step S102, It also includes the following steps:

Step S104: When the network device fails to receive part of the channel information reported by the UE, it sends a second request message to request the UE to repeatedly report part of the channel information.

In an embodiment, the failure of part of the channel information reported by the UE refers to the failure or loss of the UE to receive the information sent by the network device through DCI, or the failure of the network device to receive the part of the channel information reported by the UE.

Here, the UE repeatedly reporting part of the channel information refers to part of the channel information reported by the UE to the network device that failed to receive.

In the foregoing embodiments of the present invention, the codebook composed of the precoding matrix set is an independent code, and each layer of the codebook has the same structure, and the structure of each layer is:

W _i = W _{1, i} W _{2, i} ;

Among them, W _i is the i-th reported precoding matrix, which is composed of the product of W _{1, i} and W _{2, i} . W _{1, i} is the beam matrix corresponding to the beam matrix index reported in the i-th time, and the dimension is 2N ₁ N ₂ × 2L _i , where L _i is the number of beam vectors reported in the i-th time; W _{2, i} is reported in the i-th time The linear merging matrix has a dimension of 2L _i × 1 and is used to report a linear merging tap coefficient calculated based on the L _i beam vectors of a certain layer.

The structure of W _{1, i} is:

Here, B _i is composed of L _i column vectors of a 2D-DFT orthogonal matrix of N ₁ N ₂ × N ₁ N ₂ . B _i does not contain any column vectors from B ₁ to B _i-1 .

The foregoing embodiments of the present invention may be regarded as independent embodiments or combined with each other. Any technical solution based on the logic of the codebook processing method obtained based on the combination of the foregoing embodiments of the present invention is within the protection scope of the present invention.

An optional processing flow 1 of a codebook processing method applied to a UE according to an embodiment of the present invention, as shown in FIG. 2, includes the following steps:

Step S501: The UE receives a first request message.

In the embodiment of the present invention, the UE receives a first request message sent by a network device, and the first request message is used to request the UE to report a part of a channel message of all channel messages to the network device.

In an embodiment, the first request message is sent by the network device to the UE through DCI.

Step S502: The UE reports part of the channel information based on the first request message.

In the embodiment of the present invention, the partial channel information is used by the network device to determine a precoding matrix constituting the codebook; the partial channel information includes: a beam matrix index, a linear merge matrix, and a first CQI. The first CQI refers to the CQI corresponding to part of the channel information reported by the UE this time, and can be understood as the CQI corresponding to the beam matrix index and the linear merge matrix.

In an embodiment, when the UE receives the first request message sent by the network device through the DCI to request the UE to report part of the channel information for the first time, the UE calculates the RI based on the channel signal-to-noise ratio and the channel response matrix.

When calculating the RI, the eigenvalue of H can be calculated first, and then the channel capacity corresponding to each layer number is calculated, and the number of layers with the largest channel capacity is found as the current RI report.

In the embodiment of the present invention, the RI value is any one of 1, 2, 3, 4, 5, 6, 7, or 8.

In an embodiment, the UE selects a beam vector of a preset number of columns from the N ₁ N ₂ vectors; N ₁ and N ₂ represent the number of ports in the horizontal direction and the vertical direction of the antenna array of the network device, respectively; The beam matrix index corresponding to the beam matrix formed by the beam vectors of the preset number of columns is described.

In actual practice, the UE in a first field according to a DCI indication column beam vector L _i selected from N1N2 orthogonal 2D-DFT vector constituting beam matrix L _i of the column vector of the beam, and report the network device The beam matrix index corresponding to the beam matrix. Wherein for quasi-periodic reporting, the selected UE L _i is a column vector of the beam in the current cycle has been reported by the beam matrix mutually different beam vectors predetermined number of columns; for aperiodic reporting, the selection for the UE L _i The column beam vector is a beam vector of a preset number of columns that is different from a beam matrix that has been successfully reported in the current period.

The UE then calculates a linear merge matrix according to the channel response matrix and the beam matrix corresponding to the reported beam matrix index, and reports the calculated linear merge matrix to the network device.

Finally, the reported CQI is calculated according to the beam matrix corresponding to the currently reported beam matrix index and the linear merge matrix.

For example, given the beam matrix W _{1, i} , the channel response matrix H, and the channel characteristic vector V corresponding to the channel response matrix, the linear merge matrix W _{2, i is} calculated _.

The function Q represents quantizing the amplitude and phase of each element in the linear merge matrix. According to the current protocol, the amplitude is 3bit quantization, and the phase is 2bit (QPSK) or 3bit (8PSK) quantization. + Indicates a pseudo-inverse.

The corresponding quantization granularity of the typeII codebook is small, and the CQI is

Is the k-th eigenvalue of channel H, and N is the number of columns (ie, the number of layers) of the feature vector V.

For quasi-periodic reporting, the UE enters the next reporting period of partial channel information after completing N reports.

The second optional processing flow of the codebook processing method applied to the UE provided by the embodiment of the present invention is similar to the first optional processing flow of the codebook processing method applied to the UE, except that before step S501, the method further includes The following steps:

In step S500, the UE and the network device agree to report parameters.

Here, the reporting parameters include at least the maximum number of reporting of channel information and each reporting layer corresponding to the RI.

The optional processing flow 3 of the codebook processing method applied to the UE provided by the embodiment of the present invention is similar to the above-mentioned optional processing flow 2 of the codebook processing method applied to the UE, except that after step S502, it further includes The following steps:

Step S503: When part of the channel information reported by the UE fails, a second request message is received.

Here, the second request message is sent by the network device, and is used to request the UE to repeatedly report part of the channel message to the network device; the part of the channel information repeatedly reported is the part of the channel information that is reported to be lost or the part of the channel that is incorrectly reported.

Correspondingly, after receiving the second request message, the UE may repeatedly report the partial channel information, or may not report the partial channel information.

The optional processing flow of the codebook processing method applied to the UE and the network device according to the embodiment of the present invention, as shown in FIG. 3, includes the following steps:

In step S801, the UE and the network device agree to report parameters.

Step S802: The network device sends the beam selection information of the UE through RRC.

Step S803: The network device sends a first request message to the UE, requesting the UE to report a part of the channel message to the network device.

Step S804: The UE reports part of the channel information based on the first request message.

Step S805: The network device determines a precoding matrix and a corresponding channel quality indicator based on the received partial channel information.

Step S806: When the UE fails to report part of the channel information, the network device sends a second request message to the UE, requesting the UE to repeatedly report the part of the channel message to the network device.

Step S807: The UE repeatedly reports part of the channel information.

In the above embodiments of the present invention, part of the channel information reported by the UE to the network device can be divided into quasi-periodic reporting and aperiodic reporting; the process of periodically reporting part of the channel information by the UE and the UE quasi-periodic reporting of some channels A brief overview of the flow of information.

A schematic flow chart of a UE reporting non-periodic channel information, as shown in FIG. 4, taking a network device as an example, the base station instructs the UE to initially report through DCI, and the UE reports RI, W ₁ , ₁ W _1,2, and the corresponding CQI1 The base station obtains partial channel information W = W _1,1 W _1,2 . The base station instructs the UE to report for the second time through DCI, the UE reports W _2,1 W _2,2 and the corresponding CQI2, and the base station obtains part of the channel information W = W _1,1 W _1,2 + W _2,1 W _2,2 . By analogy, the base station instructs the UE to report the mth time through DCI, the UE reports W _{m, 1} W _{m, 2} and the corresponding CQIm, and the base station obtains part of the channel information W = W _{1, 1} W _1,2 + W _{2, 1} W _2,2 + ... + W _{m, 1} W _{m, 2} .

UE quasi-periodically reports some channel information. As shown in Figure 5, the network device is a base station as an example. The base station instructs the UE to report via DCI only once. The UE reports RI, W ₁ , ₁ W _1,2, and the corresponding CQI1; a preset time interval from when the UE first reports, the UE reports W _2,1 W _2,2 and the corresponding CQI2, and so on, the UE reports W _{m, 1} W _{m, 2} and the corresponding CQIm.

The codebook processing method provided by the embodiment of the present invention is described below based on different RRC configurations.

Optional configuration one

Adopt non-periodic reporting, pre-configure the number of times that the UE reports N = 4, and configure the beam matrix used by the UE for each report through RRC, including 1 column of beam vectors, that is, L ₁ = L ₂ = L ₃ = L ₄ = 1, rank 3 and The rank number configuration corresponding to rank4 is shown in Table 1:

Table 1

The process of the embodiment of the present invention based on the optional configuration of a codebook processing method, as shown in FIG. 6, includes the following steps:

In step S901, the base station requests the UE to report some channel information through DCI; where the DCI field is 0, the UE needs to report the RI. The serial number of the beam matrix reported for the first time is used as the beam matrix index and linear merge matrix, and the corresponding CQI1. The UE receives the DCI field as 0, calculates the current time Rank = 4, and selects an N1N2 orthogonal matrix, and reports the matrix index at the same time. According to the RRC configuration, L1 = 1, and the first report requires pre-configuration of channel information including layers 1 to 4, corresponding to each layer of the UE selecting the same beam matrix, and reporting the sequence number of the beam matrix in the orthogonal matrix, As the beam matrix index reported for the first time, and the linear merge matrix and CQI1 corresponding to each layer are reported.

Step S902: After the base station successfully receives part of the channel information reported by the UE for the first time, it requests the UE to report the second part of channel information through the DCI field of 1. The UE receives the DCI domain as 1, configures L2 = 1 according to the RRC, and the second report needs to include the pre-configuration of the channel information of layers 1 to 4. Select a corresponding layer 1 to layer 4 in the same orthogonal matrix. The beam matrix is guaranteed to be different from the beam matrix reported for the first time, and the sequence number of the beam matrix in the orthogonal matrix is reported as the beam matrix index for the second report, and the linear merge matrix corresponding to each layer is reported. And CQI2.

Step S903: After the base station successfully receives the second channel information reported by the UE for the second time, the base station requests the UE to report the third channel information through the DCI field of 2. The UE receives the DCI domain as 2, configures L3 = 1 according to the RRC, and the third report needs to include the pre-configuration of the channel information of layers 1 to 4. The UE selects a corresponding layer 1 to layer 4 in the same orthogonal matrix. And ensure that it is different from the first and second reported beam matrices, and report the serial number of the beam matrix in the orthogonal matrix, as the third reported beam matrix index, and report corresponding to each layer Linear merge matrix and CQI3.

In step S904, after the base station successfully receives the third channel information reported by the UE for the third time, the base station requests the UE to report the fourth channel information through the DCI field of 3. The UE receives the DCI domain as 3, configures L3 = 1 according to the RRC, and the fourth report requires pre-configuration including the channel information of layers 1 to 4. The UE selects a corresponding layer 1 to layer 4 in the same orthogonal matrix. The beam matrix is guaranteed to be different from the beam matrix reported for the first, second, and third times, and the sequence number of the beam matrix in the orthogonal matrix is reported as the beam matrix index for the fourth report, and reported Corresponds to the linear merge matrix and CQI4 of each layer.

Optional configuration two

Adopt non-periodic reporting, pre-configure the number of times that the UE reports N = 2, configure the different L used by the UE for each report through RRC, first report L ₁ = 4, second report L ₂ = 2, rank 3 and rank 4 The corresponding layer configuration is shown in Table 2:

Table 2

The process flow diagram of the codebook processing method based on the optional configuration 2 in the embodiment of the present invention is shown in FIG. 7 and includes the following steps:

In step S1001, the base station requests the UE to report part of the channel information through DCI. A DCI field of 0 indicates that the UE needs to report the RI, the beam matrix index and linear merge matrix corresponding to the beam matrix are reported for the first time, and the corresponding CQI1. The UE receives the DCI domain as 0, calculates the current time Rank = 4, and selects an N1N2 orthogonal matrix, and simultaneously reports the matrix number as the beam matrix index. According to the RRC configuration, L1 = 4, and the first report needs pre-configuration including channel information of layers 1 to 2. The UE selects the same beam matrix as that of layer 1 and layer 2, and reports that the beam matrix is in an orthogonal matrix. , As the beam matrix index for the first report, and for reporting the linear merge matrix and CQI1 corresponding to layer 1 and layer 2.

In step S1002, after the base station successfully receives part of the channel information reported by the UE for the first time, the base station requests the UE to report the second part of channel information through the DCI field of 1. The UE receives the DCI domain as 1, configures L2 = 2 according to the RRC, and the second report needs to include the pre-configuration of the channel information of layers 3 to 4. In the same orthogonal matrix, a corresponding layer 3 and layer 4 are selected. The beam matrix, and the sequence number of the beam matrix in the orthogonal matrix is reported as the beam matrix index for the second report, and the linear merge matrix and CQI2 corresponding to the layer 3 and layer 4 are reported.

Optional configuration three

Adopt non-periodic reporting, pre-configure the number of times that the UE reports N = 4, and configure the UE to use the same L for each report through RRC, L ₁ = L ₂ = L ₃ = L ₄ = 2, the number of layers corresponding to rank3 and rank4 Configuration, as shown in Table 3:

table 3

The process flow diagram of the codebook processing method based on the optional configuration 3 in the embodiment of the present invention is shown in FIG. 8 and includes the following steps:

In step S1101, the base station requests the UE to report through DCI. A DCI field of 0 indicates that the UE needs to report the RI. The beam matrix index and linear merge matrix corresponding to the beam matrix are reported for the first time, and the corresponding CQI1 is reported. The UE receives the DCI domain as 0, calculates the current time Rank = 4, and selects an N1N2 orthogonal matrix, and simultaneously reports the matrix number as the beam matrix index. According to the RRC configuration, L1 = 2, and the first report requires pre-configuration of channel information including layers 1 to 4. Select the same beam matrix for each layer of UE, and report the sequence number of the beam matrix in the orthogonal matrix. The beam matrix index reported for the first time, and the linear merge matrix and CQI1 corresponding to each layer are reported.

In step S1102, after the base station successfully receives part of the channel information reported by the UE for the first time, it requests the UE to report the second part of channel information through the DCI field of 1. The UE receives the DCI domain as 1, configures L2 = 2 according to the RRC, and pre-configures the channel information including layer 1 to layer 4 for the first report. The UE selects a corresponding layer 1 to layer 4 in the same orthogonal matrix. The beam matrix is guaranteed to be different from the beam matrix reported for the first time, and the serial number of the beam matrix in the orthogonal matrix is reported as the beam matrix index for the second report, and the linear merge matrix corresponding to each layer is reported. And CQI2.

Step S1103: After the base station fails to receive the second report message of the UE, the base station repeatedly requests the UE to report the second part of the channel information through the DCI field of 1. The UE receives the DCI domain as 1, configures L2 = 2 according to the RRC, and pre-configures the channel information including layer 1 to layer 4 for the first report. The UE selects a corresponding layer 1 to layer 4 in the same orthogonal matrix. Since the DCI field is 1, the UE can select the same or different beam matrix as the beam matrix reported for the first time, and report the sequence number of the beam matrix in the orthogonal matrix as the beam matrix index for this report. , And report the linear merge matrix and CQI2 corresponding to each layer.

Optional configuration four

Adopt quasi-periodic reporting, pre-configure the number of times that the UE reports N = 2, configure the different L used by the UE for each report through RRC, first report L ₁ = 4, second report L ₂ = 2, rank 3 and rank 4 The corresponding layer configuration is shown in Table 4:

Table 4

The process flow diagram of the codebook processing method based on the optional configuration four in the embodiment of the present invention is shown in FIG. 9 and includes the following steps:

In step S1201, the base station requests the UE to report through DCI. Since this time is the first time to report in a quasi-period, the UE needs to report the RI, the beam matrix index and the linear merge matrix, and the corresponding CQI1. The UE receives the quasi-period report request, calculates the current time Rank = 4, and selects an N1N2 orthogonal matrix, and reports the matrix serial number at the same time. According to the RRC configuration, L1 = 4, and the first report needs pre-configuration including channel information of layers 1 to 2. The UE selects the same beam matrix as that of layer 1 and layer 2, and reports that the beam matrix is in an orthogonal matrix. , As the beam matrix index of this report, and the linear merge matrix and CQI1 corresponding to layer 1 and layer 2 are reported.

Step S1202: At the second quasi-period reporting time, the UE reports the second part of the channel information; according to the RRC configuration, L2 = 2, and the second report requires the pre-configuration including the channel information of layer 3 to layer 4. The UE is in the same In the orthogonal matrix, a beam matrix corresponding to layers 3 and 4 is selected, and the serial number of the beam matrix in the orthogonal matrix is reported as the beam matrix index for the second report, and the linearity of the corresponding layers 3 and 4 is reported. Merge matrix and CQI2.

Optional configuration five

Quasi periodic reporting, reported by the UE preconfigured number N = 4, each UE through RRC configuration use the same reporting _{L, L 1 = L 2 = L} 3 = L 4 = 2, rank3 corresponding to the number of layers and rank4 Configuration, as shown in Table 5:

table 5

The processing flow diagram of the codebook processing method based on the optional configuration 5 in the embodiment of the present invention is shown in FIG. 10 and includes the following steps:

Step S1301: The base station requests the UE to report through DCI. Since this time is the first time to report in a quasi-period, the UE needs to report the RI, the beam matrix index and the linear merge matrix, and the corresponding CQI1. The UE receives the quasi-period report request, calculates the current time Rank = 4, and selects an N1N2 orthogonal matrix, and reports the matrix serial number at the same time. According to the RRC configuration, L1 = 2, and the first report needs pre-configuration including channel information of layers 1 to 4. The UE selects the same beam matrix for layers 1 to 4 and reports the beam matrix in the orthogonal matrix. The serial number is used as the beam matrix index for this report, and the linear merge matrix and CQI1 corresponding to layer 1 to layer 4 are reported.

Step S1302: At the second quasi-period reporting time, the UE reports the second part of the channel information; according to the RRC configuration, L2 = 2, and the second report requires the pre-configuration of the channel information including layer 1 to layer 4, the UE is in the same In the orthogonal matrix, a beam matrix corresponding to layers 1 to 4 is selected, and the serial number of the beam matrix in the orthogonal matrix is reported as the beam matrix index of the report, and a linear combination of corresponding layers 1 to 4 is reported. Matrix and CQI2.

Step S1303: At the third quasi-period reporting time, since N = 2, the UE needs to initially report the RI, beam matrix, linear merge matrix, and corresponding CQI1; the UE receives the quasi-periodic reporting request, and calculates the current time Rank = 4, And select an N1N2 orthogonal matrix, and report the matrix number at the same time. According to the RRC configuration, L1 = 2, and the first report requires pre-configuration including channel information of layers 1 to 4. The UE selects the same beam matrix as layers 1 to 4 and reports that the beam matrix is in an orthogonal matrix. , As the beam matrix index of this report, and the linear merge matrix and CQI3 corresponding to layer 1 to layer 4 are reported.

Based on the codebook processing method provided by the foregoing embodiment of the present invention, an embodiment of the present invention further provides a network device. The composition structure of the network device 1400, as shown in FIG. 11, includes:

The sending unit 1401 is configured to send a first request message, where the first request message is used to request the UE to report part of the channel information in all the channel information; and the part of the channel information is used by the network device to determine a channel that constitutes the codebook. Precoding matrix.

The first receiving unit 1402 is configured to receive part of the channel information reported by the UE.

In an embodiment, the network device further includes:

The first determining unit 1403 is configured to determine a precoding matrix and a first CQI based on the received partial channel information; the first CQI refers to a CQI corresponding to the partial channel information received by the network device this time, and can be understood as a beam The CQI corresponding to the matrix index and the linear merge matrix.

In an embodiment, the partial channel information includes: a beam matrix index, a linear merge matrix, and a first CQI.

In one embodiment, the partial channel information includes RI.

In an embodiment, the first determining unit 1403 is configured to, when each part of the received channel information corresponds to data of the same layer,

Calculate the product of the beam matrix corresponding to each received beam matrix index and the linear merge matrix;

Determining the sum of the obtained products as the precoding matrix;

In an embodiment, the first determining unit 1403 is configured to, when each part of the channel information received corresponds to data of a different layer,

The product of the beam matrix and the linear merge matrix corresponding to the beam matrix index received each time is calculated, and the product of the beam matrix and the linear merge matrix calculated by cascading different layers is the precoding matrix.

In an embodiment, the first determining unit 1403 is configured to calculate a second CQI based on a beam matrix corresponding to the beam matrix index, a linear merge matrix, and a first CQI;

The second CQI is a CQI corresponding to the precoding matrix.

In an embodiment, the sending unit 1401 is further configured to configure beam selection information of the UE through RRC, and the beam selection information is used by the UE to report the partial channel information to a network device.

In an embodiment, the beam selection information includes: the number of columns of a beam matrix reported by the UE each time.

In an embodiment, the network device further includes: a first appointment unit 1405 configured to agree with the UE on reporting parameters; wherein,

The reporting parameters include at least: the maximum number of reporting of channel information and the layer of each reporting of the corresponding RI.

In an embodiment, when the first receiving unit 1402 fails to receive part of the channel information reported by the UE,

The sending unit 1401 is further configured to send a second request message to request the UE to repeatedly report a partial channel message.

In an embodiment, the sending unit 1401 is configured to send the first request message or the second request message through DCI.

In one embodiment, the value of the RI is any value from 1 to 8.

Based on the codebook processing method provided by the foregoing embodiment of the present invention, an embodiment of the present invention further provides a network device. The composition structure of the user equipment 1500, as shown in FIG. 12, includes:

The second receiving unit 1501 is configured to receive a first request message, where the first request message requests the UE to report part of the channel information of all channel information to the network device;

The reporting unit 1502 is configured to report partial channel information based on the first request message; the partial channel information is used by the network device to determine a precoding matrix constituting the codebook.

In one embodiment, the partial channel information includes: a beam matrix index, a linear merging matrix, and a first CQI. The first CQI refers to a CQI corresponding to the partial channel information sent by the UE this time, and can be understood as a beam matrix The CQI corresponding to the index and the linear merge matrix.

In an embodiment, the reporting unit 1502 is configured to select a beam vector of a preset number of columns from N ₁ N ₂ vectors; N ₁ and N ₂ represent ports in a horizontal direction and a vertical direction of a network device antenna array, respectively. number;

A beam matrix index corresponding to a beam matrix composed of beam vectors of the preset number of columns is reported.

In an embodiment, the reporting unit 1502 is configured to determine a linear merge matrix based on a channel response matrix and the beam matrix;

Report the linear merge matrix.

In an embodiment, the reporting unit 1502 is configured to determine a first CQI based on the beam matrix and the linear merge matrix; and report the first CQI.

In an embodiment, the reporting unit 1502 is configured to select, from N ₁ N ₂ vectors, a beam vector of a preset number of columns that is different from a beam matrix that has been reported in a current period.

In an embodiment, the reporting unit 1502 is configured to calculate an RI based on a channel signal-to-noise ratio and a channel response matrix; and report the RI.

In an embodiment, the second receiving unit 1501 is further configured to receive a second request message, and the second request message requests the UE to repeatedly report a partial channel message to a network device.

In one embodiment, the second receiving unit 1501 is configured to receive the request message sent by downlink control signaling DCI.

In one embodiment, the value of the RI is any value from 1 to 8.

In an embodiment, the user equipment further includes:

The second agreement unit 1503 is configured to agree with the network device on a report parameter; wherein,

The reporting parameters include at least: the maximum number of reporting of channel information and the layer of each reporting of the corresponding RI.

In an embodiment, the reporting unit 1502 is configured to repeatedly report the partial channel information to the network device based on the second request message.

An embodiment of the present invention further provides a network device, including a processor and a memory for storing a computer program capable of running on the processor, where:

The processor is configured to execute the codebook processing method performed by the network device when the computer program is run.

An embodiment of the present invention further provides user equipment, including a processor and a memory for storing a computer program capable of running on the processor, where:

The processor is configured to execute the codebook processing method performed by the user equipment when the computer program is run.

A storage medium stores an executable program. When the executable program is executed by a processor, the codebook processing method in the embodiment of the present invention is implemented.

Based on the foregoing network device and UE in the embodiment of the present invention, an embodiment of the present invention further provides a codebook processing system, which includes the network device and the UE.

The network device is configured to send a first request message to a user equipment UE, and receive part of the channel information sent by the UE; the part of the channel information is used by the network device to determine a precoding matrix constituting the codebook;

The UE is configured to receive the first request message sent by the network device, and report partial channel information to the network device based on the first request message.

Based on the above codebook processing system, an optional processing flow of a codebook processing method applied to the codebook processing system according to an embodiment of the present invention includes the following steps:

Step S1401: The network device sends a first request message to the UE.

The first request message is used to request the UE to report part of the channel information in all the channel information; the part of the channel information is used by the network device to determine a precoding matrix constituting the codebook.

Step S1402: The UE receives the first request message and reports part of channel information based on the first request message.

Step S1403: The network device receives the partial channel information.

FIG. 13 is a schematic diagram of a hardware composition structure of an electronic device (network device or UE) according to an embodiment of the present invention. The electronic device 1600 includes: at least one processor 1601, a memory 1602, and at least one network interface 1604. The various components in the server 1600 are coupled together by a bus system 1605. It can be understood that the bus system 1605 is used to implement connection and communication between these components. The bus system 705 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for the sake of clarity, various buses are marked as the bus system 1605 in FIG. 19.

It can be understood that the memory 1602 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory. Among them, the non-volatile memory may be ROM, Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), electrically erasable and programmable memory Programmable read-only memory (EEPROM, Electrically Programmable Read-Only Memory), magnetic random access memory (FRAM, ferromagnetic random access memory), flash memory (Flash memory), magnetic surface memory, optical disc, or read-only disc (CD) -ROM, Compact Disc-Read-Only Memory); magnetic surface storage can be magnetic disk storage or magnetic tape storage. The volatile memory may be a random access memory (RAM, Random Access Memory), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM, Static Random Access Memory), Synchronous Static Random Access Memory (SSRAM, Static Random Access, Memory), Dynamic Random Access DRAM (Dynamic Random Access Memory), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Double Data Rate Rate Synchronous Dynamic Access Random Access Memory, Enhanced Type Synchronous Dynamic Random Access Memory (ESDRAM, Enhanced Synchronous Random Access Memory), Synchronous Link Dynamic Random Access Memory (SLDRAM, SyncLink Dynamic Random Access Memory), Direct RAM Bus Random Access Memory (DRRAM, Direct Rambus Random Access Memory ). The memory 1602 described in the embodiments of the present invention is intended to include, but not limited to, these and any other suitable types of memory.

The memory 1602 in the embodiment of the present invention is used to store various types of data to support the operation of the electronic device 1600. Examples of such data include: any computer program for operating on the electronic device 1600, such as the application program 16022. A program for implementing the method of the embodiment of the present invention may be included in an application program 16022.

The method disclosed in the foregoing embodiment of the present invention may be applied to the processor 1601, or implemented by the processor 1601. The processor 1601 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1601 or an instruction in the form of software. The processor 1601 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The processor 1601 may implement or execute various methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present invention may be directly implemented by a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium. The storage medium is located in the memory 1602. The processor 1601 reads the information in the memory 1602 and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the electronic device 1600 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), and Complex Programmable Logic Devices (CPLDs). (Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, MPU, or other electronic components to implement the foregoing methods.

The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, and combinations of processes and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine, so that the instructions generated by the processor of the computer or other programmable data processing device are used to generate instructions Means for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a specific manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions The device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

The above description is only the preferred embodiments of the present invention, and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in Within the scope of the present invention.

Claims (55)

1. A codebook processing method, the method includes:

   The network device sends a first request message, where the first request message is used to request the user equipment UE to report part of the channel information in all channel information;

   Receiving, by the network device, part of channel information reported by the UE; the part of channel information is used to determine a precoding matrix constituting a codebook.
2. The method according to claim 1, wherein the partial channel information comprises:

   A beam matrix index, a linear merge matrix, and a first channel quality indicator CQI; the first CQI is a CQI corresponding to the beam matrix index and the linear merge matrix.
3. The method according to claim 2, wherein the partial channel information further comprises:

   Rank indicates RI.
4. The method according to any one of claims 1 to 3, wherein after receiving part of the channel information reported by the UE, the method further comprises:

   A precoding matrix and a second CQI are determined based on the received partial channel information; the second CQI is a CQI corresponding to the precoding matrix.
5. The method according to claim 4, wherein the determining a precoding matrix based on the received partial channel information comprises:

   When each part of the channel information received corresponds to the data of the same layer,

   Calculate the product of the beam matrix corresponding to each received beam matrix index and the linear merge matrix;

   The sum of the obtained products is determined as the precoding matrix.
6. The method according to claim 4, wherein the determining a precoding matrix based on the received partial channel information comprises:

   When each piece of channel information received corresponds to data in a different layer,

   The product of the beam matrix and the linear merge matrix corresponding to the beam matrix index received each time is calculated, and the product of the beam matrix and the linear merge matrix calculated by cascading different layers is the precoding matrix.
7. The method according to claim 4, wherein the determining a second CQI based on the partial channel information comprises:

   Based on the beam matrix corresponding to the beam matrix index, the linear merge matrix, and the first CQI, a second CQI is calculated.
8. The method according to claim 1, wherein before the network device sends a first request message, the method further comprises:

   The radio resource control RRC sends beam selection information of the UE, and the beam selection information is used by the UE to report the partial channel information to a network device.
9. The method according to claim 8, wherein the beam selection information comprises:

   The number of columns of the beam matrix reported by the UE each time.
10. The method according to any one of claims 1 to 9, wherein before the network device sends a first request message, the method further comprises:

    The network device and the UE agree to report parameters; wherein:

    The reporting parameters include at least: the maximum number of reporting of channel information and the layer of each reporting of the corresponding RI.
11. The method according to any one of claims 1 to 10, wherein the method further comprises:

    When the network device fails to receive the partial channel information reported by the UE, it sends a second request message, where the second request message is used to request the UE to repeatedly report the partial channel message.
12. The method according to any one of claims 1 to 11, wherein the sending, by the network device, a first request message includes:

    Sending, by the network device, the first request message through downlink control signaling DCI.
13. The method according to claim 3, wherein the value of the RI is any value from 1 to 8.
14. A codebook processing method, the method includes:

    The user equipment UE receives a first request message, and the first request message requests the UE to report part of the channel information of all channel information to a network device;

    The UE reports the partial channel information based on the first request message; the partial channel information is used to determine a precoding matrix constituting a codebook.
15. The method according to claim 14, wherein the partial channel information comprises:

    A beam matrix index, a linear merge matrix, and a first channel quality indicator CQI; the first CQI is a CQI corresponding to the beam matrix index and the linear merge matrix.
16. The method according to claim 14 or 15, wherein the reporting part of the channel information comprises:

    Select a beam vector of a preset number of columns from the N ₁ N ₂ vectors; N ₁ and N ₂ represent the number of ports in the horizontal and vertical directions of the antenna array of the network device, respectively;

    A beam matrix index corresponding to a beam matrix composed of beam vectors of the preset number of columns is reported.
17. The method according to claim 14 or 15, wherein the reporting part of the channel information comprises:

    Determining a linear merge matrix based on the channel response matrix and the beam matrix;

    Report the linear merge matrix.
18. The method according to claim 14 or 15, wherein the reporting part of the channel information comprises:

    Determine a first CQI based on the beam matrix and the linear merge matrix;

    Report the first CQI.
19. The method according to claim 16, wherein the selecting a beam vector of a preset number of columns from the N ₁ N ₂ vectors comprises:

    A beam vector of a preset number of columns that is different from the beam matrix that has been reported in the current period is selected from the N ₁ N ₂ vectors.
20. The method according to any one of claims 14 to 18, wherein the reporting part of the channel information comprises:

    Calculate the rank indication RI based on the channel signal-to-noise ratio and the channel response matrix;

    Report the RI.
21. The method according to claim 14, wherein after the reporting of the partial channel information, the method further comprises:

    Receiving a second request message, where the second request message is used to request the UE to repeatedly report the partial channel message to the network device.
22. The method according to claim 21, wherein the method further comprises:

    Based on the second request message, the partial channel information is repeatedly reported.
23. The method according to claim 22, wherein the UE receives the first request message or the second request message sent through downlink control signaling DCI.
24. The method according to any one of claims 14 to 23, wherein the value of the RI is any value from 1 to 8.
25. The method according to any one of claims 14 to 24, wherein before the UE receives the first request message, the method further comprises:

    The UE and the network device agree to report parameters; wherein:

    The reporting parameters include at least: the maximum number of reporting of channel information and the layer of each reporting of the corresponding RI.
26. A network device includes:

    The sending unit is configured to send a first request message, where the first request message is used to request the user equipment UE to report part of the channel information among all the channel information;

    The first receiving unit is configured to receive part of the channel information reported by the UE; the part of the channel information is used by the network device to determine a precoding matrix constituting the codebook.
27. The network device according to claim 26, wherein the partial channel information comprises: a beam matrix index, a linear merge matrix, and a corresponding first channel quality indicator CQI; the first CQI is related to the beam matrix index and the The CQI corresponding to the linear merge matrix is described.
28. The network device according to claim 27, wherein the partial channel information further includes a rank indication RI.
29. The network device according to any one of claims 26 to 28, wherein the network device further comprises:

    The first determining unit is configured to determine a precoding matrix and a second CQI based on the received partial channel information; the second CQI is a CQI corresponding to the precoding matrix.
30. The network device according to claim 29, wherein the first determining unit is configured to, when the received partial channel information corresponds to data of a same layer each time,

    Calculate the product of the beam matrix corresponding to each received beam matrix index and the linear merge matrix;

    The sum of the obtained products is determined as the precoding matrix.
31. The network device according to claim 29, wherein the first determining unit is configured to, when each of the received partial channel information corresponds to data of a different layer,

    The product of the beam matrix and the linear merge matrix corresponding to the beam matrix index received each time is calculated, and the product of the beam matrix and the linear merge matrix calculated by cascading different layers is the precoding matrix.
32. The network device according to claim 29, wherein the first determining unit is configured to calculate a second CQI based on a beam matrix corresponding to the beam matrix index, a linear merge matrix, and a first CQI.
33. The network device according to claim 26, wherein the sending unit is further configured to send beam selection information of the UE through radio resource control RRC, and the beam selection information is used by the UE to report the network equipment to the network device. Partial channel information.
34. The network device according to claim 33, wherein the beam selection information comprises:

    The number of columns of the beam matrix reported by the UE each time.
35. The network device according to any one of claims 26 to 34, wherein the network device further comprises:

    A first appointment unit configured to agree with the UE on reporting parameters;

    The reporting parameters include at least: the maximum number of reporting of channel information and the layer of each reporting of the corresponding RI.
36. The network device according to any one of claims 26 to 35, wherein when the first receiving unit fails to receive part of the channel information reported by the UE,

    The sending unit is further configured to send a second request message to request the UE to repeatedly report the partial channel message.
37. The network device according to any one of claims 26 to 36, wherein the sending unit is configured to send the first request message through downlink control signaling DCI.
38. The network device according to claim 28, wherein a value of the RI is any one of 1 to 8.
39. A user equipment includes:

    A second receiving unit configured to receive a first request message, where the first request message requests the UE to report part of the channel information in the entire channel information to the network device;

    The reporting unit is configured to report part of the channel information based on the first request message; the part of the channel information is used by the network device to determine a precoding matrix constituting the codebook.
40. The user equipment according to claim 39, wherein the partial channel information comprises:

    A beam matrix index, a linear merge matrix, and a first channel quality indicator CQI; the first CQI is a CQI corresponding to the beam matrix index and the linear merge matrix.
41. The user equipment according to claim 39 or 40, wherein the reporting unit is configured to select a beam vector of a preset number of columns from N1N2 vectors; N1 and N2 represent horizontal and vertical directions of the antenna array of the network device, respectively The number of ports

    A beam matrix index corresponding to a beam matrix composed of beam vectors of the preset number of columns is reported.
42. The user equipment according to claim 39 or 40, wherein the reporting unit is configured to determine a linear merge matrix based on a channel response matrix and the beam matrix;

    Report the linear merge matrix.
43. The user equipment according to claim 39 or 40, wherein the reporting unit is configured to determine a first CQI based on the beam matrix and the linear merge matrix;

    Report the first CQI.
44. The user equipment according to claim 41, wherein the reporting unit is configured to select, from N1N2 vectors, a beam vector of a preset number of columns that is different from a beam matrix that has been reported in a current period.
45. The user equipment according to any one of claims 39 to 43, wherein the reporting unit is configured to calculate a rank indication RI based on a channel signal-to-noise ratio and a channel response matrix;

    Report the RI.
46. The user equipment according to claim 40, wherein the second receiving unit is further configured to receive a second request message, the second request message requests the UE to repeatedly report a partial channel message to a network device.
47. The user equipment according to claim 46, wherein the reporting unit is further configured to repeatedly report the partial channel information based on the second request message.
48. The user equipment according to claim 47, wherein the second receiving unit is configured to receive the first request message or the second request message sent through downlink control signaling DCI.
49. The user equipment according to any one of claims 40 to 48, wherein the value of the RI is any value from 1 to 8.
50. The user equipment according to claims 40 to 49, wherein the user equipment further comprises:

    A second engagement unit configured to agree with the network device on a reporting parameter; wherein,

    The reporting parameters include at least: the maximum number of reporting of channel information and the layer of each reporting of the corresponding RI.
51. A network device includes a processor and a memory for storing a computer program capable of running on the processor, wherein,

    When the processor is used to run the computer program, perform the steps of the method according to any one of claims 1 to 13.
52. A user equipment includes a processor and a memory for storing a computer program capable of running on the processor, wherein,

    When the processor is used to run the computer program, perform the steps of the method according to any one of claims 14 to 25.
53. A codebook processing method, the method includes:

    The network device sends a first request message to the user equipment UE;

    Receiving, by the UE, the first request message and reporting partial channel information based on the first request message; the partial channel information is used by the network device to determine a precoding matrix constituting the codebook;

    Receiving, by the network device, the partial channel information.
54. A codebook processing system, the system includes:

    A network device configured to send a first request message to a user equipment UE and receive part of the channel information sent by the UE; the part of the channel information is used by the network device to determine a precoding matrix constituting the codebook;

    The UE is configured to receive the first request message sent by the network device, and report partial channel information to the network device based on the first request message.
55. A storage medium storing an executable program. When the executable program is executed by a processor, the codebook processing method according to any one of claims 1 to 13 is implemented, or the method according to any one of claims 14 to 25 is implemented. The codebook processing method described above.

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