WO2024067346A1

WO2024067346A1 - Information transmission method and apparatus, and storage medium

Info

Publication number: WO2024067346A1
Application number: PCT/CN2023/120376
Authority: WO
Inventors: 黄秋萍; 付一阳; 高秋彬
Original assignee: 大唐移动通信设备有限公司
Priority date: 2022-09-30
Filing date: 2023-09-21
Publication date: 2024-04-04
Also published as: CN117856838A

Abstract

Provided in the embodiments of the present disclosure are an information transmission method and apparatus, and a storage medium. The method comprises: when first scheduling information comprises first information, determining, on the basis of the first information, a codebook corresponding to a first channel, wherein the first information is information indicating a codebook; and sending the first channel on the basis of the codebook corresponding to the first channel.

Description

Information transmission method, device and storage medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese patent application No. 202211217126.5, filed on September 30, 2022, and entitled “Information Transmission Method, Device and Storage Medium”, which is incorporated herein by reference in its entirety.

Technical Field

The present disclosure relates to the field of communication technology, and in particular to an information transmission method, device and storage medium.

Background technique

The New Radio (NR) system supports codebook-based Physical Uplink Shared Channel (PUSCH) transmission. For codebook-based PUSCH transmission, when the number of antenna ports corresponding to the codebook is N, a precoding matrix is indicated from a codebook with N antenna ports.

As the number of terminal/user equipment (UE) antennas increases, using a universal uplink codebook that is independent of the UE's antenna structure will reduce the performance of PUSCH transmission, creating a need to use a codebook that matches the UE's antenna structure.

However, when there are different codebooks designed for different UE antenna structures in the system, there will be a lot of combinations of codebooks. The UE needs to pre-store a lot of precoding matrix indication tables, determine the precoding matrix indication table according to the configuration parameters of the base station, and then determine the precoding matrix based on the precoding matrix indication table and the precoding matrix indication information sent by the base station. This solution increases the storage overhead of the UE and the complexity of determining the precoding matrix.

Summary of the invention

The embodiments of the present disclosure provide an information transmission method, device and storage medium to solve the technical problems of large storage overhead of UE and high complexity of determining precoding matrix in the prior art.

In a first aspect, an embodiment of the present disclosure provides an information transmission method, which is applied to a terminal, including:

In a case where the first scheduling information includes first information, determining a codebook corresponding to the first channel based on the first information; the first information is information indicating the codebook;

The first channel is sent based on a codebook corresponding to the first channel.

In some embodiments, the method further includes: acquiring second information, and determining the number of antenna ports corresponding to the first channel;

When the number of antenna ports is greater than or equal to a first preset value, it is determined based on the second information that the first scheduling information includes the first information.

In some embodiments, the second information is codebook subset information.

In some embodiments, when the second information indicates that the type of the codebook is a non-coherent codebook, the first information included in the first scheduling information does not indicate a codebook, or the first scheduling information does not include the first information.

In some embodiments, the method further comprises:

determining a bit width of first information in the first scheduling information based on the second information;

Based on the bit width, the first information is determined.

In some embodiments, the first information is used to indicate the type and/or table corresponding to the codebook;

and / or,

The first information indicates a precoding matrix that is unavailable in a preset codebook.

In some embodiments, when the state of the first information is the first state or the value of the first information is the first numerical value, the first information is used to indicate one or more of the following types of codebooks:

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

When the state of the first information is the second state or the value of the first information is the second value, the first information is used to indicate one or more of the following types of codebooks:

Partially coherent codebook; or

Non-coherent codebook.

In some embodiments, the first scheduling information includes precoding indication information, and the precoding indication information indicates a precoding matrix corresponding to the first channel;

Sending the first channel based on a codebook corresponding to the first channel includes:

Determine a precoding matrix indicated by the precoding indication information from a codebook corresponding to the first channel;

The first channel is transmitted based on the precoding matrix.

In some embodiments, the first information and the precoding indication information are carried through the same information field or parameter;

or,

The first information is carried through a first information field or a first parameter, and the precoding indication information is carried through a second information field or a second parameter.

In some embodiments, the encoding method of the precoding indication information is associated with the first information;

and / or,

The generation method of the precoding matrix corresponding to the first channel is associated with the first information.

In some embodiments, the precoding indication information indicates a precoding matrix with a number of antenna ports of X or a plurality of precoding matrices with a number of antenna ports of X, and/or the precoding The coding indication information indicates one transmission layer number or multiple transmission layer numbers;

or,

The precoding indication information indicates the precoding matrix in a bitmap manner;

or,

The precoding indication information indicates a precoding matrix formed by antenna selection vectors;

The number of antenna ports X is determined based on the number of antenna ports corresponding to the first channel, and/or the number of antenna ports X is determined based on an indication of a network device, and/or the number of antenna ports X is predefined; the antenna selection vector refers to a column vector having only one non-zero element.

In some embodiments, the method further comprises:

When the state of the first information is the third state or the value of the first information is the third value, determining that the first scheduling information also includes a layer number indication bit;

or,

When the state of the first information is the fourth state or the value of the first information is the fourth value, determining that the first scheduling information does not include a layer number indication bit;

or,

Determining that the first scheduling information includes a layer number indication bit;

The layer number indication bit is used to indicate the number of transmission layers.

In some embodiments, the method further comprises:

Acquire codebook configuration information sent by a network device; the codebook configuration information is used to determine a codebook corresponding to the first channel;

Determining a codebook corresponding to the first channel based on the first information includes:

When the state of the first information is the fifth state or the value of the first information is the fifth value, a codebook corresponding to the first channel is determined based on the codebook configuration information.

In some embodiments, the codebook configuration information includes one or more of the following information:

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.

In some embodiments, the method further comprises:

In a case where the first scheduling information does not include the first information, it is determined that the codebook corresponding to the first channel is a predefined codebook.

In a second aspect, an embodiment of the present disclosure provides an information transmission method, which is applied to a network device, including:

Determine first scheduling information based on a codebook corresponding to the first channel;

In a case where the first scheduling information includes first information, the first scheduling information is sent to a terminal; and a codebook corresponding to the first channel corresponds to the first information.

In some embodiments, the method further comprises:

Sending second information to the terminal; the second information is used to indicate that the first scheduling information includes the first information.

In some embodiments, the second information is codebook subset information.

In some embodiments, the method further comprises:

A bit width of the first information is determined, wherein the bit width of the first information is associated with the second information.

and / or,

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

Partially coherent codebook; or

Non-coherent codebook.

The first information and the precoding indication information are carried through the same information field or parameter;

or,

and / or,

or,

In some embodiments, the method further comprises:

Sending codebook configuration information to the terminal; the codebook configuration information is used to determine a codebook corresponding to the first channel.

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.

In a third aspect, an embodiment of the present disclosure provides a terminal, including a memory, a transceiver, and a processor;

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:

In the case where the first scheduling information includes the first information, determining based on the first information determining a codebook corresponding to a first channel; wherein the first information is information indicating the codebook;

In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

Acquire second information, and determine the number of antenna ports corresponding to the first channel;

In some embodiments, the second information is codebook subset information.

Based on the bit width, the first information is determined.

and / or,

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

When the state of the first information is the second state or the value of the first information is the second In the case of a numerical value, the first information is used to indicate one or more of the following types of codebooks:

Partially coherent codebook; or

Non-coherent codebook.

The first channel is transmitted based on the precoding matrix.

or,

and / or,

In some embodiments, the precoding indication information indicates a precoding matrix with a number of antenna ports of X or a plurality of precoding matrices with a number of antenna ports of X, and/or the precoding indication information indicates a number of transmission layers or a plurality of transmission layers;

or,

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.

In a fourth aspect, an embodiment of the present disclosure provides a network device, including a memory, a transceiver, and a processor;

In some embodiments, the second information is codebook subset information.

and / or,

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

Partially coherent codebook; or

Non-coherent codebook.

or,

and / or,

The precoding matrix corresponding to the first channel is generated in a manner similar to the first information. association.

or,

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.

In a fifth aspect, an embodiment of the present disclosure provides an information transmission device, including:

A first determining module is configured to, when the first scheduling information includes the first information, Determine a codebook corresponding to a first channel based on the first information; the first information is information indicating a codebook;

The first sending module is configured to send the first channel based on a codebook corresponding to the first channel.

In some embodiments, it further includes a first acquisition module and a third determination module;

The first acquisition module is used to acquire second information and determine the number of antenna ports corresponding to the first channel;

The third determination module is used to determine, based on the second information, that the first scheduling information includes the first information when the number of antenna ports is greater than or equal to a first preset value.

In some embodiments, the second information is codebook subset information.

In some embodiments, a fourth determination module and a fifth determination module are further included;

The fourth determination module is used to determine the bit width of the first information in the first scheduling information based on the second information;

The fifth determination module is used to determine the first information based on the bit width.

and / or,

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

Partially coherent codebook; or

Non-coherent codebook.

The first channel is transmitted based on the precoding matrix.

or,

and / or,

or,

In some embodiments, a sixth determining module is further included; the sixth determining module is used to:

or,

In some embodiments, a second acquisition module is also included;

The second acquisition module is used to acquire codebook configuration information sent by the network device; the codebook configuration information is used to determine the codebook corresponding to the first channel;

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.

In some embodiments, a seventh determination module is further included;

The seventh determination module is configured to determine, when the first scheduling information does not include the first information, that the codebook corresponding to the first channel is a predefined codebook.

In a sixth aspect, an embodiment of the present disclosure provides an information transmission device, including:

A second determining module, configured to determine first scheduling information based on a codebook corresponding to the first channel;

The second sending module is used to send the first scheduling information to the terminal when the first scheduling information includes first information; the codebook corresponding to the first channel corresponds to the first information.

In some embodiments, a third sending module is also included;

The third sending module is used to send second information to the terminal; the second information is used to indicate that the first scheduling information includes the first information.

In some embodiments, the second information is codebook subset information.

In some embodiments, an eighth determination module is also included;

The eighth determination module is used to determine a bit width of the first information, and the bit width of the first information is associated with the second information.

and / or,

In some embodiments, the state of the first information is the first state or the first When the value of the information is a first value, the first information is used to indicate one or more of the following types of codebooks:

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

Partially coherent codebook; or

Non-coherent codebook.

or,

and / or,

or,

In some embodiments, a fourth sending module is further included;

The fourth sending module is used to send codebook configuration information to the terminal; the codebook configuration information is used to determine the codebook corresponding to the first channel.

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.

In the seventh 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 information transmission method described in the first aspect or the second aspect as described above.

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

In a ninth aspect, an embodiment of the present disclosure further provides a communication device readable storage medium, wherein the communication device readable storage medium stores a computer program, wherein the computer program is used to enable The communication device executes the information transmission method described in the first aspect or the second aspect as described above.

In the tenth aspect, the embodiments of the present disclosure further provide a chip product readable storage medium, wherein the chip product readable storage medium stores a computer program, and the computer program is used to enable the chip product to execute the information transmission method described in the first aspect or the second aspect as described above.

In the information transmission method provided by the embodiment of the present disclosure, the terminal determines whether the scheduling information includes the first information. When the scheduling information includes the first information, the terminal determines the codebook corresponding to the first channel based on the first information, thereby avoiding the terminal pre-storing a large number of precoding matrix indication tables, reducing the complexity of precoding matrix determination, and improving information transmission efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying any creative work.

FIG1 is a flow chart of an information transmission method according to an embodiment of the present disclosure;

FIG2 is a second flow chart of the information transmission method provided by the embodiment of the present disclosure;

FIG3 is a schematic diagram of the structure of a terminal provided by an embodiment of the present disclosure;

FIG4 is a schematic diagram of the structure of a network device provided by an embodiment of the present disclosure;

FIG5 is a schematic diagram of a structure of an information transmission device provided by an embodiment of the present disclosure;

FIG. 6 is a second schematic diagram of the structure of an information transmission device provided in an embodiment of the present disclosure.

Detailed ways

The 3rd Generation Partnership Project 3GPP) NR system supports codebook-based PUSCH transmission. For codebook-based PUSCH transmission, when the number of corresponding antenna ports is N, the precoding matrix is indicated from a codebook with N antenna ports. The NR system supports the base station to configure a codebook subset for codebook-based PUSCH transmission through Radio Resource Control (RRC) signaling, which (RRC signaling) includes three candidate values: fully And Partial And Non Coherent, partially coherent, and non-coherent. Different candidate values correspond to different codebook subsets, and the codebook subset corresponding to fully And Partial And Non Coherent includes all codewords (i.e., precoding matrices) of the codebook subset corresponding to partial And Non Coherent, and the codebook subset corresponding to partial And Non Coherent includes all codewords of the codebook subset corresponding to non Coherentt.

The current NR system codebook design does not take into account the differences in UE antenna structures. The uplink codebook is only related to the number of antenna ports and has nothing to do with the specific antenna structure of the UE.

As the number of UE antennas increases, using a universal uplink codebook that is independent of the UE antenna structure will reduce the performance of uplink transmission, which creates a need to use a codebook that matches the UE antenna structure.

When there are different codebooks designed for different UE antenna structures in the system, if the codebook subset corresponding to fullyAndPartialAndNonCoherent includes all the codewords (i.e., precoding matrices) of the codebook subset corresponding to partialAndNonCoherent, and the codebook subset corresponding to partialAndNonCoherent includes all the codewords of the codebook subset corresponding to nonCoherentt, there will be a lot of codebook combinations. The UE needs to pre-store a lot of precoding matrix indication tables, and after determining the precoding matrix indication table according to the configuration parameters of the base station, determine which precoding matrix the precoding matrix indication information sent by the base station indicates based on the determined precoding matrix indication table. This increases the storage overhead of the UE and the complexity of the precoding matrix determination.

Based on the above technical problem, the embodiment of the present disclosure proposes an information transmission method, in which the terminal determines whether the scheduling information includes the first information, and includes the first information in the scheduling information. In the case where the first information is included, a codebook corresponding to the first channel is determined based on the first information, so that the terminal is prevented from pre-storing a large number of precoding matrix indication tables, the complexity of determining the precoding matrix is reduced, and the information transmission efficiency is improved.

In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

FIG1 is one of the flowcharts of the information transmission method provided by the embodiment of the present disclosure. As shown in FIG1 , the embodiment of the present disclosure provides an information transmission method, the execution subject of which may be a terminal, such as a mobile phone, etc. The method includes:

Step 101: When first scheduling information includes first information, determine a codebook corresponding to a first channel based on the first information; the first information is information indicating a codebook.

Specifically, in the embodiment of the present disclosure, the first scheduling information includes information indicating a codebook, and the terminal determines a codebook corresponding to the first channel based on the information indicating the codebook.

The first scheduling information is information used to schedule the first channel, and may be uplink scheduling information or downlink scheduling information.

The first information may have different states or different values, and the first information in different states or the first information in different values may indicate different codebooks.

The first channel can be PUSCH, physical uplink control channel (Physical Uplink Control Channel, PUCCH), physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), physical downlink control channel (Physical Downlink Control Channel, PDCCH), etc.

Step 102: Send the first channel based on a codebook corresponding to the first channel.

Specifically, in the embodiment of the present disclosure, after the terminal determines the codebook corresponding to the first channel, the terminal sends the first channel based on the codebook corresponding to the first channel.

For example, after the terminal determines the codebook corresponding to the PUSCH, it may first select a precoding matrix from the codebook corresponding to the PUSCH, and send the PUSCH based on the selected precoding matrix.

For example, after the terminal determines the codebook corresponding to the PDSCH, it may first select a precoding matrix from the codebook corresponding to the PDSCH, and send the PDSCH based on the selected precoding matrix.

Sending the first channel may refer to sending information on the first channel, or sending the first channel may refer to performing transmission on the first channel, or sending the first channel may refer to performing transmission of data, etc. on the first channel.

Specifically, in the embodiment of the present disclosure, it can be determined whether the first scheduling information includes the first information based on the second information and/or the number of antenna ports corresponding to the first channel.

The terminal may first obtain the second information and determine the number of antenna ports corresponding to the first channel.

Then, the relationship between the number of antenna ports corresponding to the first channel and the first preset value is determined. When the number of antenna ports corresponding to the first channel is greater than or equal to the first preset value, the terminal determines that the first scheduling information includes the first information based on the second information.

Optionally, when the number of antenna ports corresponding to the first channel is less than the first preset value, the terminal may no longer determine whether the first scheduling information includes the first information, or the terminal determines that the first scheduling information does not include the first information based on the second information. In this case, the terminal may use an existing solution to determine the codebook corresponding to the first channel, which is not described here.

The first preset value is configurable, and the specific value can be configured according to actual conditions, for example, configured to 4, 7, 8, 16, etc.

The second information may have different states or different values. The second information in different states or the second information in different values may indicate different meanings. For example, the value of the second information is 0, indicating that the first scheduling information includes the first information. The value of the second information is 1, indicating that the first scheduling information does not include the first information.

For example, for PUSCH, the number of antenna ports corresponding to the PUSCH channel can be determined by the antenna port number indication information included in the Sounding Reference Signal (SRS) resource corresponding to the PUSCH transmission mode, or by the information used to indicate the SRS resource corresponding to the PUSCH transmission in the uplink scheduling information (for example, SRS resource indication information, i.e., Sounding Reference Information (SRI)). In this example, the SRS resource needs to be determined based on the SRI, and the number of antenna ports of the SRS resource is the number of antenna ports of the PUSCH.

The information transmission method provided by the embodiment of the present disclosure determines the acquisition scheme of the codebook corresponding to the first channel based on the number of antenna ports corresponding to the first channel. When the number of antenna ports corresponding to the first channel is greater than or equal to the first preset value, the terminal determines the codebook corresponding to the first channel based on the first information included in the scheduling information, thereby avoiding the terminal pre-storing a large number of precoding matrix indication tables, reducing the complexity of precoding matrix determination, and improving information transmission efficiency.

In some embodiments, the second information is codebook subset information, and/or the second information is information used to indicate that the scheduling information includes the first information.

Specifically, in the embodiment of the present disclosure, the second information is codebook subset information.

The codebook subset information may indicate a fully coherent codebook subset, for example, the value of codebookSubset is fullyAndPartialAndNonCoherent.

The codebook subset information may also indicate a partially coherent codebook subset, for example, the value of codebookSubset is PartialAndNonCoherent.

The codebook subset information may also indicate a non-coherent codebook subset, for example, codebookSubset The value of is NonCoherent.

In the information transmission method provided by the embodiment of the present disclosure, the terminal determines that the scheduling information includes the first information based on the codebook subset information, and determines the codebook corresponding to the first channel based on the first information, thereby further improving the information transmission efficiency.

Specifically, in the embodiment of the present disclosure, the second information may be used to indicate the type of the codebook.

The second information may indicate that the type of the codebook is a fully coherent codebook.

The second information may also indicate that the type of the codebook is a partially coherent codebook.

The second information may also indicate that the type of the codebook is a non-coherent codebook.

Optionally, when the second information indicates that the type of the codebook is a non-coherent codebook, the first information included in the first scheduling information does not indicate the codebook, or the first scheduling information does not include the first information.

For example, when the second information indicates that the type of the codebook is a non-coherent codebook, the first scheduling information does not include the first information.

For example, when the second information indicates that the type of the codebook is a non-coherent codebook, the first scheduling information does not include an information field specifically used to indicate the codebook.

For example, when the second information indicates that the type of the codebook is a non-coherent codebook, the first information included in the first scheduling information does not indicate the codebook.

For example, when the second information indicates that the type of the codebook is a non-coherent codebook, the first information included in the first scheduling information does not indicate which type of coherent codebook the codebook is.

In the information transmission method provided by the embodiment of the present disclosure, when the second information indicates that the type of the codebook is a non-coherent codebook, the first information included in the first scheduling information does not indicate the codebook, or the first scheduling information does not include the first information, which further reduces the complexity of the terminal determining the precoding matrix and improves the efficiency of information transmission.

In some embodiments, the method further comprises:

Based on the bit width, the first information is determined.

Specifically, in the embodiment of the present disclosure, the terminal may also first determine the bit width of the first information in the first scheduling information based on the second information, and then decode the first scheduling information based on the bit width to determine the first information.

For example, for the first value and the second value of the second information, the bit width of the first information in the first scheduling information is different. In other words, for the second information, the bit width of the first information in the first scheduling information is different.

In the information transmission method provided by the embodiment of the present disclosure, the value of the second information is different, and the bit width of the first information in the first scheduling information is different. The terminal decodes the first scheduling information based on the bit width of the first information in the first scheduling information to determine the first information, which further reduces the complexity of the terminal in determining the precoding matrix and improves the efficiency of information transmission.

and / or,

Specifically, in an embodiment of the present disclosure, the first information included in the first scheduling information may indicate the coherent transmission type of the codebook, for example, one or more of a fully coherent (FC) codebook, a partially coherent (PC) codebook, and a non-coherent (NC) codebook.

Optionally, the first information included in the first scheduling information may indicate a table corresponding to a codebook, for example, one or more of a table corresponding to an FC codebook, a table corresponding to a PC codebook, and a table corresponding to an NC codebook.

Optionally, the first information included in the first scheduling information indicates which codebook is used, and different codebooks correspond to at least one different parameter.

Optionally, the first information included in the first scheduling information indicates an unavailable precoding matrix in the preset codebook. A set of other precoding matrices in the preset codebook except the unavailable precoding matrix is the codebook corresponding to the first channel. For example, there are a total of There are three precoding matrices: code matrix 1, precoding matrix 2 and precoding matrix 3. The first information included in the first scheduling information indicates that precoding matrix 2 is unavailable. The codebook composed of precoding matrix 1 and precoding matrix 3 is the codebook corresponding to the first channel.

In the information transmission method provided by the embodiment of the present disclosure, the first information is used to indicate the type and/or table corresponding to the codebook, or the first information indicates a precoding matrix that is unavailable in the preset codebook, which further reduces the complexity of the terminal determining the precoding matrix and improves the efficiency of information transmission.

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

Partially coherent codebook; or

Non-coherent codebook.

Specifically, in the embodiment of the present disclosure, when the state of the first information is the first state or the value of the first information is the first value, the first information is used to indicate one or more of the following types of codebooks:

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook.

Taking the second information as codebook subset information, uplink scheduling as an example, when the codebook subset information indicates FC, the first information in the uplink scheduling information further indicates that the uplink codebook is FC code Which codebooks are selected from the following: codebook, PC codebook or NC codebook.

Optionally, when the state of the first information is the first state or the value of the first information is a first numerical value, the first information is used to indicate one or more of the following types of codebooks:

Partially coherent codebook; or

Non-coherent codebook.

Taking the uplink scheduling as an example in which the second information is the codebook subset information, when the codebook subset information indicates PC, the first information in the uplink scheduling information further indicates which codebooks the uplink codebook is in the PC codebook or the NC codebook.

Optionally, taking the second information as codebook subset information, uplink scheduling is taken as an example, when the codebook subset information indicates NC, the uplink scheduling information does not indicate which coherent type of the uplink codebook is, and the NC codebook is used by default.

In the information transmission method provided by the embodiment of the present disclosure, the first information can have different states or different values, and the first information in different states or the first information with different values can indicate different codebooks, which further reduces the complexity of the terminal in determining the precoding matrix and improves the efficiency of information transmission.

The first channel is transmitted based on the precoding matrix.

Specifically, in the embodiment of the present disclosure, the first scheduling information includes precoding indication information, and the precoding indication information indicates a precoding matrix from a codebook indicated by the first information, that is, the terminal determines the precoding indication information based on the codebook indicated by the first information.

The terminal first determines the precoding matrix indicated by the precoding indication information from the codebook corresponding to the first channel, and then sends the first channel based on the precoding matrix.

Optionally, the precoding indication information indicates one or more of i _1,1 ,i _1,2 ,i ₂ ,i ₃ ,i _1,N,n , and the terminal determines the precoding matrix based on one or more of i _1,1 ,i _1,2 ,i ₂ ,i ₃ ,i _1,N,n . Wherein N is a parameter configured by the network device, and optionally, N is used to characterize the number of antenna groups, n=1,2,…,N-1. _{i 1,1} ,i _1,2 ,i ₂ ,i ₃ ,i _1,N,n are parameters used to determine the precoding matrix.

Optionally, one or more of i _1,1 ,i _1,2 ,i ₂ ,i ₃ ,i _1,N,n are independently encoded.

For example, the bit width of i _1,1 is The bit width of i _1,1 is The bit width of i _1,2 is The bit width of i _1,2 is The bit width of i ₂ is 2, the bit width of i ₂ is 1, the bit width of i ₃ is 1, the bit width of i ₃ is 2, the bit width of i _{1,N,n is} 1, and the bit width of i _1,N,n is 2. Among them, one or more of N ₁ , O ₁ , N ₂ , and O ₂ are determined according to parameters configured by the base station, or one or more of N ₁ , O ₁ , N ₂ , and O ₂ are codebook configuration parameters.

Optionally, for the first number of layers and the second number of layers, bit widths of one or more of i _1,1 ,i _1,2 ,i ₂ ,i ₃ ,i _1,N,n are different.

Optionally, for the first number of layers and the second number of layers, the values of O ₁ or O ₂ are different.

Optionally, one or more of i _1,1 ,i _1,2 ,i ₂ ,i ₃ ,i _1,N,n are jointly encoded.

For example, i _1,1 ,i _1,2 by Bit joint coding.

Optionally, when the number of layers is 1, the codebook is as shown in the following table:

Optionally, when the number of layers is 2, the codebook is as shown in the following table:

Optionally, when the number of layers is 3, the codebook is as shown in the following table:

Optionally, when the number of layers is 4, the codebook is as shown in the following table:

Optionally, when the number of layers is 5, the codebook is as shown in the following table:

Optionally, when the number of layers is 6, the codebook is as shown in the following table:

Optionally, when the number of layers is 7, the codebook is as shown in the following table:

Optionally, when the number of layers is 8, the codebook is as shown in the following table:

in,

θ _p = e ^jπp/4

_k1 and _k2 are values determined based on _i3 , or are predefined values.

in,

a _p = e ^jπ4 e ^jπp/2

b _n = e ^-jπ/4 e ^jπn/2

in,

In the information transmission method provided by the embodiment of the present disclosure, the first scheduling information includes precoding indication information, and the precoding indication information indicates the precoding matrix corresponding to the first channel, which further reduces the complexity of the terminal determining the precoding matrix and improves the efficiency of information transmission.

or,

Specifically, in the embodiment of the present disclosure, the first information and the precoding indication information may be carried through the same information field.

Optionally, the first information and the precoding indication information may be carried by the same parameter.

Optionally, the first information and the precoding indication information may be carried via different information domains.

For example, the first information is carried through a first information field, and the precoding indication information is carried through a second information field.

Optionally, the first information and the precoding indication information may be carried by different parameters.

For example, the first information is carried by a first parameter, and the precoding indication information is carried by a second parameter.

In the information transmission method provided by the embodiment of the present disclosure, the first information and the precoding indication information can be carried through the same information domain/parameter, or respectively carried through different information domains/parameters, which further reduces the complexity of the terminal determining the precoding matrix and improves the efficiency of information transmission.

and / or,

Specifically, in an embodiment of the present disclosure, when the first information is included in the first scheduling information, the encoding method of the precoding indication information is the first method.

For example, when the first scheduling information does not include the first information, the encoding method of the precoding indication information is the second method.

For example, when the first scheduling information includes the first information, the precoding matrix corresponding to the first channel is generated in the third manner.

For example, when the first scheduling information does not include the first information, the precoding matrix corresponding to the first channel is generated in the fourth manner.

In the information transmission method provided by the embodiment of the present disclosure, the encoding method of the precoding indication information is associated with the first information, or the generation method of the precoding matrix corresponding to the first channel is associated with the first information, which further reduces the complexity of the terminal determining the precoding matrix and improves the efficiency of information transmission.

or,

Specifically, in the embodiments of the present disclosure, the precoding indication information indicates a precoding matrix with an antenna port number of X or a plurality of precoding matrices with an antenna port number of X, and/or the precoding indication information indicates a transmission layer number or a plurality of transmission layer numbers.

The terminal determines the code for transmission from the codebook corresponding to the first channel based on the precoding indication information. Input the precoding matrix of the first channel.

Alternatively, X may be a predefined value.

Optionally, X is determined based on the number of antenna ports corresponding to the first channel.

For example, the number of antenna ports corresponding to the first channel is M, and the relationship between X and M can be expressed by at least one of the following formulas:

X＝M (i.e. X is equal to M);

X = M/2 (i.e. X is half of M);

X = M/4 (i.e. X is equal to one quarter of M);

X=M/8 (ie, X is equal to one eighth of M).

Optionally, X is determined based on an indication from a network device.

Optionally, the network device may directly indicate the value of X.

Optionally, the network device may further indicate a grouping method of antennas (or antenna ports) of the first channel, and the terminal determines X based on the grouping method.

For example, the antenna grouping method of the first channel includes the number of antenna ports included in each group of antennas, and X is the number of antenna ports included in each group of antennas.

For example, the antenna grouping method of the first channel includes the number of antenna port groups. The terminal determines the number of antenna ports included in each antenna group based on the number of antenna port groups, and X is the number of antenna ports included in each antenna group.

Optionally, the network device may further indicate the type of the codebook, and the terminal determines X based on the type of the codebook.

Optionally, the precoding indication information indicates the precoding matrix in a bitmap manner.

For example, the Y bits in the precoding indication information indicate a square matrix with a dimension of Y*Y, in which all elements except the diagonal have non-zero elements, and the mth bit of the precoding matrix indication information has a value of 1, indicating that the elements in the mth row and mth column of the precoding matrix are non-zero, and the mth bit has a value of 0, indicating that the elements in the mth row and mth column of the precoding matrix are 0, where Y is the number of antenna ports for the uplink signal.

Optionally, the precoding indication information indicates one transmission layer number or multiple transmission layer numbers.

For example, for one or more values of the first information, the precoding matrix and the number of transmission layers are jointly encoded and indicated by the precoding information and the number of transmission layers field. A part of the bits in the precoding information and the number of transmission layers field indicate the number of transmission layers, and another part of the bits indicate the precoding matrix from the codebook corresponding to the transmission layer.

The information transmission method provided by the embodiment of the present disclosure determines the precoding matrix corresponding to the first channel through precoding indication information, further reduces the complexity of the terminal determining the precoding matrix, and improves the efficiency of information transmission.

In some embodiments, the method further comprises:

or,

Specifically, in the embodiment of the present disclosure, the layer number indication bit may be associated with the first information.

For example, when the state of the first information is the third state or the value of the first information is the third numerical value, the terminal determines that the first scheduling information also includes a layer number indication bit.

For example, when the state of the first information is the fourth state or the value of the first information is the fourth numerical value, the terminal determines that the first scheduling information does not include a layer number indication bit.

For example, when the first scheduling information includes the first information, the terminal determines that the first scheduling information includes a layer number indication bit.

For example, when the first scheduling information does not include the first information, the terminal determines that the first scheduling information does not include a layer number indication bit.

The information transmission method provided by the embodiment of the present disclosure is to indicate the layer number bit and the first The information is associated, which further reduces the complexity of the terminal determining the precoding matrix and improves the efficiency of information transmission.

In some embodiments, the method further comprises:

Specifically, in the embodiment of the present disclosure, the network device may further send codebook configuration information to the terminal. After the terminal obtains the codebook configuration information sent by the network device, the terminal may determine the codebook corresponding to the first channel based on the codebook configuration information.

Optionally, when the state of the first information is the fifth state or the value of the first information is a fifth numerical value, the terminal determines the codebook corresponding to the first channel based on the codebook configuration information.

For example, when the first information indicates FC or PC, the terminal determines the codebook corresponding to the first channel based on the codebook configuration information.

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.

Specifically, in the embodiment of the present disclosure, the number of antennas in the horizontal dimension is the number of antennas in the horizontal dimension within an antenna group.

The number of antennas in the vertical dimension is the number of antennas in the vertical dimension within an antenna group.

The information transmission method provided by the embodiment of the present disclosure determines based on the codebook configuration information The codebook corresponding to the first channel further reduces the complexity of determining the precoding matrix for the terminal and improves the efficiency of information transmission.

In some embodiments, the method further comprises:

Specifically, in the embodiment of the present disclosure, when the first scheduling information does not include the first information, it is determined that the codebook corresponding to the first channel is a predefined codebook.

The information transmission method provided by the embodiment of the present disclosure determines that the codebook corresponding to the first channel is a predefined codebook when the first scheduling information does not include the first information, thereby further reducing the complexity of the terminal determining the precoding matrix and improving the efficiency of information transmission.

The method in the above embodiment is further described below with reference to several specific examples of uplink scheduling.

Example 1:

The terminal receives codebook subset information (eg, codebookSubset) of the PUSCH sent by the base station, where the codebook subset information indicates a fully coherent codebook subset (eg, a value of codebookSubset is fullyAndPartialAndNonCoherent).

The terminal determines that the number of antenna ports corresponding to PUSCH transmission is 8 ports (or determines that the number of antenna ports corresponding to the information used to indicate the number of PUSCH antenna ports is 8).

The terminal determines that the uplink scheduling information (e.g., DCI) includes codebook indication information (or information indicating the codebook, such as bits in the first part of the precoding information and number of layers information field).

Optionally, when the codebook indication information is a first value (for example, indicating "0" or "00"), the terminal determines that the uplink codebook is a first codebook (fully coherent codebook), and determines the precoding matrix based on the first codebook.

Optionally, the terminal determines the precoding matrix based on the precoding matrix indication information (for example, the second part of the bits in the precoding information and number of layers information field) in the following manner.

Optionally, the precoding indication information indicates one or more of i _1,1 ,i _1,2 ,i ₂ ,i ₃ ,i _1,N,n , and the terminal determines the precoding matrix based on one or more of i _1,1 ,i _1,2 ,i ₂ ,i ₃ ,i _1,N,n . Wherein N is a parameter configured by the network device, and optionally, N is used to represent the number of antenna groups, n=1,2,…,N-1.

For example, the bit width of i _1,1 is The bit width of i _1,1 is The bit width of i _1,2 is The bit width of i _1,2 is The bit width of i ₂ is 2, the bit width of i ₂ is 1, the bit width of i ₃ is 1, the bit width of i ₃ is 2, the bit width of i _{1,N,n is} 1, and the bit width of i _1,N,n is 2. Among them, one or more of N ₁ , O ₁ , N ₂ , and O ₂ are determined according to parameters configured by the base station.

For example, i _1,1 ,i _1,2 by Bit joint coding.

Optionally, when the codebook indication information is a second value (for example, indicating "1" or "01"), the uplink codebook is determined to be a second codebook (partially coherent codebook), and the precoding matrix is determined based on the second codebook.

Optionally, the precoding matrix is determined based on precoding matrix indication information (e.g., bits in the second part of the precoding information and number of layers information field) in the following manner.

The precoding indication information indicates a precoding matrix with a number of antenna ports of X or a plurality of precoding matrices with a number of antenna ports of X, and/or the precoding indication information indicates a number of transmission layers or a plurality of transmission layers. The UE determines a precoding matrix corresponding to an uplink signal from a codebook corresponding to the first channel based on the precoding indication information.

Optionally, the precoding matrix with the number of antenna ports being X is determined based on an uplink codebook with the number of antenna ports being X.

Optionally, the precoding matrix of the uplink signal is in the form of one or more of the following: A transformation of:

Among them, P, P ₁ , P ₂ , P ₃ , P ₄ , and 0 are matrices whose number of columns is less than or equal to the number of rows, and the number of rows is equal to X.

Optionally, when the codebook indication information indicates a third value (for example, "10"), the uplink codebook is determined to be a third codebook (non-coherent codebook), and the precoding matrix is determined based on the third codebook.

Optionally, when the codebook indication information indicates "10", the precoding matrix is determined to be an X*X square matrix, in which all elements except the non-zero elements on the diagonal are 0, and the mth bit value of the precoding matrix indication information is 1, indicating that the elements in the mth row and mth column of the precoding matrix are non-zero, and the mth bit value is 0, indicating that the elements in the mth row and mth column of the precoding matrix are 0.

Example 2:

The terminal receives codebook subset information (eg, codebookSubset) of the PUSCH sent by the base station, where the codebook subset information indicates a partially coherent codebook subset (eg, a value of codebookSubset is PartialAndNonCoherent).

The terminal determines that the uplink scheduling information (e.g., DCI) includes the codebook indication information (e.g., the ratio of the first part of the precoding information and number of layers information field) special).

Optionally, when the codebook indication information is a first value (for example, indicating "1"), the uplink codebook is determined to be a second codebook (partially coherent codebook), and the precoding matrix is determined based on the second codebook.

Optionally, the precoding matrix of the uplink signal is in the form of one of the following or a transformation of one of the following:

Optionally, when the codebook indication information indicates a second value (for example, "01"), Determine that the uplink codebook is a third codebook (a non-coherent codebook), and determine a precoding matrix based on the third codebook;

Optionally, when the codebook indication information indicates "01", the precoding matrix is determined to be an X*X square matrix, in which all elements except the non-zero elements on the diagonal are 0, and the mth bit value of the precoding matrix indication information is 1, indicating that the elements in the mth row and mth column of the precoding matrix are non-zero, and the mth bit value is 0, indicating that the elements in the mth row and mth column of the precoding matrix are 0.

Example 3:

The terminal receives codebook subset information (eg, codebookSubset) of the PUSCH sent by the base station, where the codebook subset information indicates a non-coherent codebook subset (eg, a value of codebookSubset is NonCoherent).

The terminal determines whether the uplink scheduling information (eg, DCI) includes codebook indication information, and directly determines a precoding matrix of the PUSCH according to a non-coherent codebook corresponding to the number of antenna ports of the PUSCH.

Example 4:

The terminal determines that the number of antenna ports corresponding to PUSCH transmission is 2 or 4 ports (or determines that the number of antenna ports corresponding to the information used to indicate the number of PUSCH antenna ports is 4); and determines the precoding matrix of PUSCH according to the uplink partial coherent codebook corresponding to 2 or 4 ports.

Example 5:

An example of a coding method for the precoding indication field in uplink scheduling information (eg, DCI) is shown in the following table:

That is, part of the bits indicate the subcodebook, and the other part of the bits indicate the precoding matrix and transmission Number of layers.

Optionally, when the subcodebook indication corresponds to 01, the following precoding matrix and transmission layer number indication indicate the precoding matrix from the codebook including only fully coherent codewords, that is, indicate the number of transmission layers, one or more of i _1,1 ,i _1,2 ,i ₂ ,i ₃ ,i _1,N,n .

When the subcodebook indication corresponds to 10, the following precoding matrix and transmission layer number indication indicate the precoding matrix from the codebook including only partially coherent codewords. That is, one or more UL 2Tx/4Tx precoding matrices can be indicated from the UL2Tx/4Tx codebook.

When the subcodebook indication corresponds to 10, the following precoding matrix and the number of transmission layers are indicated in a bitmap manner, indicating a non-coherent codeword.

For another example, when the subcodebook indication corresponds to 0, the following precoding matrix and transmission layer number indication indicate the precoding matrix from the codebook including only fully coherent codewords, that is, indicate the number of transmission layers, one or more of i _1,1 ,i _1,2 ,i ₂ ,i ₃ ,i _1,N,n .

When the subcodebook indication corresponds to 1, the following precoding matrix and transmission layer number indication indicate a precoding matrix from a codebook including only partially coherent codewords and incoherent codewords. The first part of the precoding matrix indicates an incoherent codeword, and the second part indicates one or more UL 2Tx/4Tx precoding matrices (partially coherent codewords) from the UL 2Tx/4Tx codebook.

Example 6:

That is, a part of the bits indicates the sub-codebook, a part of the bits indicates the number of transmission layers, and another part of the bits indicates the precoding matrix.

Optionally, the encoding method of the precoding matrix indication part is related to the value of the sub-codebook indication and/or the value of the transmission layer number indication.

Optionally, for some values of the sub-codebook indication, there is a transmission layer number indication; for another part of the values of the sub-codebook indication, the transmission layer number indication and the precoding matrix indication are jointly encoded.

The information transmission method provided by the embodiment of the present disclosure makes the determination and indication of the codebook more flexible when the number of transmitting antennas is relatively large, thereby improving the information transmission efficiency.

FIG2 is a second flow chart of the information transmission method provided by the embodiment of the present disclosure. As shown in FIG2 , the embodiment of the present disclosure provides an information transmission method, the execution subject of which may be a network device, such as a base station, etc. The method includes:

Step 201: Determine first scheduling information based on a codebook corresponding to a first channel.

Step 202: When the first scheduling information includes first information, send the first scheduling information to the terminal; and the codebook corresponding to the first channel corresponds to the first information.

In some embodiments, the method further comprises:

In some embodiments, the second information is codebook subset information.

In some embodiments, the method further comprises:

and / or,

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

Partially coherent codebook; or

Non-coherent codebook.

or,

and / or,

or,

In some embodiments, the method further comprises:

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.

Specifically, the information transmission method provided in the embodiment of the present disclosure can refer to the above-mentioned information transmission method embodiment in which the execution subject is a terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the above-mentioned corresponding method embodiments will not be described in detail here.

FIG3 is a schematic diagram of the structure of a terminal provided by an embodiment of the present disclosure. As shown in FIG3 , the terminal includes a memory 320, a transceiver 300, and a processor 310, wherein:

The memory 320 is used to store computer programs; the transceiver 300 is used to send and receive data under the control of the processor 310; the processor 310 is used to read the computer program in the memory 320 and perform the following operations:

Specifically, the transceiver 300 is used to receive and send data under the control of the processor 310 .

Among them, in Figure 3, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 310 and various circuits of memory represented by memory 320 are linked together. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits together, which are all well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 300 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, and these transmission media include transmission media such as wireless channels, wired channels, and optical cables. For different user devices, the user interface 330 may also be an interface that can be connected to external and internal devices, and the connected devices include but are not limited to keypads, displays, speakers, microphones, joysticks, etc.

The processor 310 is responsible for managing the bus architecture and general processing, and the memory 320 can store data used by the processor 310 when performing operations.

In some embodiments, processor 310 can 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), and the processor can also adopt a multi-core architecture.

The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

When the number of antenna ports is greater than or equal to a first preset value, based on the first The second information determines that the first scheduling information includes the first information.

In some embodiments, the second information is codebook subset information.

Based on the bit width, the first information is determined.

and / or,

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

Partially coherent codebook; or

Non-coherent codebook.

The first channel is transmitted based on the precoding matrix.

or,

and / or,

or,

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.

In the case where the first information is not included in the first scheduling information, determining a first The codebook corresponding to the channel is a predefined codebook.

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 the method embodiment will not be described in detail here.

FIG4 is a schematic diagram of the structure of a network device provided by an embodiment of the present disclosure. As shown in FIG4 , the network device includes a memory 420, a transceiver 400, and a processor 410, wherein:

The memory 420 is used to store computer programs; the transceiver 400 is used to send and receive data under the control of the processor 410; the processor 410 is used to read the computer program in the memory 420 and perform the following operations:

Specifically, the transceiver 400 is used to receive and send data under the control of the processor 410 .

In FIG. 4 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 410 and various circuits of memory represented by memory 420 are linked together. The bus architecture may also link together various other circuits such as peripherals, 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 400 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, which transmission medium includes a wireless channel, a wired channel, an optical cable, and other transmission media. The processor 410 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 410 when performing operations.

The processor 410 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a Programmable Gate Array, FPGA) or Complex Programmable Logic Device (Complex Programmable Logic Device, CPLD), the processor can also adopt a multi-core architecture.

In some embodiments, the second information is codebook subset information.

and / or,

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

When the state of the first information is the second state or the value of the first information is the second value, the first information is used to indicate one or more of the following types of codebooks: kind:

Partially coherent codebook; or

Non-coherent codebook.

or,

and / or,

or,

In some embodiments, the processor is further configured to read the computer program product stored in the memory. program and do the following:

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.

Specifically, the above-mentioned network 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 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.

FIG5 is one of the structural schematic diagrams of an information transmission device provided by an embodiment of the present disclosure. As shown in FIG5 , an information transmission device provided by an embodiment of the present disclosure includes a first determining module 501 and a first sending module 502, wherein:

The first determination module 501 is used to determine the codebook corresponding to the first channel based on the first information when the first scheduling information includes the first information; the first information is information indicating the codebook; the first sending module 502 is used to send the first channel based on the codebook corresponding to the first channel.

The third determining module is used to determine the number of antenna ports when the number of antenna ports is greater than or equal to the first preset value, determine based on the second information that the first scheduling information includes the first information.

In some embodiments, the second information is codebook subset information.

and / or,

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

Partially coherent codebook; or

Non-coherent codebook.

In some embodiments, the first scheduling information includes precoding indication information. The precoding indication information indicates a precoding matrix corresponding to the first channel;

The first channel is transmitted based on the precoding matrix.

or,

and / or,

or,

In some embodiments, a second acquisition module is also included;

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.

In some embodiments, a seventh determination module is further included;

Specifically, the information transmission device provided in the embodiment of the present disclosure can realize the above The execution subject is a terminal. All method steps implemented in the method embodiment 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.

FIG6 is a second structural diagram of an information transmission device provided by an embodiment of the present disclosure. As shown in FIG6 , an information transmission device provided by an embodiment of the present disclosure includes a second determining module 601 and a second sending module, wherein:

The second determination module 601 is used to determine the first scheduling information based on the codebook corresponding to the first channel;

The second sending module 602 is used to send the first scheduling information to the terminal when the first scheduling information includes first information; the codebook corresponding to the first channel corresponds to the first information.

In some embodiments, a third sending module is also included;

In some embodiments, the second information is codebook subset information.

In some embodiments, an eighth determination module is also included;

and / or,

In some embodiments, when the state of the first information is the first state or the value of the first information is the first value, the first information is used to indicate the following type of code: One or more of:

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

Partially coherent codebook; or

Non-coherent codebook.

or,

and / or,

or,

In some embodiments, a fourth sending module is further included;

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.

Specifically, the above-mentioned information transmission 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 a network 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.

It should be noted that the division of units/modules in the above embodiments of the present disclosure is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, the functional units in the various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated units may be implemented in the form of hardware, It can also be implemented in the form of a software functional unit.

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 prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

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 transmission method provided by the above-mentioned method embodiments.

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 effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

It should be noted that the computer-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 CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

It should also be noted that the terms "first", "second", etc. in the embodiments of the present disclosure are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present disclosure can be implemented in an order other than those illustrated or described herein, and "first", "second", etc. The objects to be distinguished are usually of one type, and the number of objects is not limited. For example, the first object can be one or more.

In the embodiments of the present disclosure, the term "and/or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the associated objects before and after are in an "or" relationship.

The term "plurality" in the embodiments of the present disclosure refers to two or more than two, and other quantifiers are similar thereto.

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

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 a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the names of terminal devices may also be different. For example, in a 5G system, a terminal device may be called a user equipment (UE). A wireless terminal device can be connected to a wireless network (RAN) through a wireless access network. 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, a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges language and/or data with the wireless access network. For example, Personal Communication Service (PCS) phone, cordless phone, Session Initiated Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA) 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, a user device, which is not limited in the embodiments of the present disclosure.

The network device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device can be used to interchange received air frames with Internet Protocol (IP) packets, and serve 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 network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the long term evolution (LTE) system, or a 5G network architecture (next The 5G base station (gNB) in the 5G generation system may also be a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., which is not limited in the embodiments of the present disclosure. In some network structures, the network equipment may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

"Determine B based on A" in the present disclosure means that the factor A should be considered when determining B. It is not limited to "B can be determined based on A alone", but should also include: "Determine B based on A and C", "Determine B based on A, C and E", "Determine C based on A, and further determine B based on C", etc. It can also include taking A as a condition for determining B, for example, "When A meets the first condition, use the first method to determine B"; for example, "When A meets the second condition, determine B", etc.; for example, "When A meets the third condition, determine B based on the first parameter", etc. Of course, it can also be a condition that takes A as a factor for determining B, for example, "When A meets the first condition, use the first method to determine C, and further determine B based on C", etc.

Network devices and terminal devices can each use one or more antennas for multiple input multiple output (MIMO) transmission. MIMO transmission can be single user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.

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. Moreover, 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 disk storage and optical storage, etc.) containing computer-usable program code.

The present disclosure is described with reference to the flowchart and/or block diagram of the method, device (system), and computer program product according to the embodiment 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 process and/or box 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 process or multiple processes in the flowchart and/or one box or multiple boxes in the block diagram.

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.

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.

Obviously, those skilled in the art can 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 also intended to include these modifications and variations.

Claims

An information transmission method, applied to a terminal, comprising:

In a case where the first scheduling information includes first information, determining a codebook corresponding to the first channel based on the first information; the first information is information indicating the codebook;

The first channel is sent based on a codebook corresponding to the first channel.
The information transmission method according to claim 1, wherein the method further comprises: acquiring second information and determining the number of antenna ports corresponding to the first channel;

When the number of antenna ports is greater than or equal to a first preset value, it is determined based on the second information that the first scheduling information includes the first information.
The information transmission method according to claim 2, wherein the second information is codebook subset information.
The information transmission method according to claim 2, wherein the method further comprises:

determining a bit width of first information in the first scheduling information based on the second information;

Based on the bit width, the first information is determined.
The information transmission method according to claim 1, wherein the first information is used to indicate a type and/or table corresponding to the codebook;

and / or,

The first information indicates a precoding matrix that is unavailable in a preset codebook.
The information transmission method according to claim 5, wherein, when the state of the first information is the first state or the value of the first information is the first numerical value, the first information is used to indicate one or more of the following types of codebooks:

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

When the state of the first information is the second state or the value of the first information is the second In the case of a numerical value, the first information is used to indicate one or more of the following types of codebooks:

Partially coherent codebook; or

Non-coherent codebook.
The information transmission method according to claim 1, wherein the first scheduling information includes precoding indication information, and the precoding indication information indicates a precoding matrix corresponding to the first channel;

Sending the first channel based on a codebook corresponding to the first channel includes:

Determine a precoding matrix indicated by the precoding indication information from a codebook corresponding to the first channel;

The first channel is transmitted based on the precoding matrix.
The information transmission method according to claim 7, wherein the first information and the precoding indication information are carried through the same information field or parameter;

or,

The first information is carried through a first information field or a first parameter, and the precoding indication information is carried through a second information field or a second parameter.
The information transmission method according to claim 8, wherein the encoding method of the precoding indication information is associated with the first information;

and / or,

The generation method of the precoding matrix corresponding to the first channel is associated with the first information.
The information transmission method according to claim 7, wherein the precoding indication information indicates a precoding matrix with a number of antenna ports of X or a plurality of precoding matrices with a number of antenna ports of X, and/or the precoding indication information indicates a number of transmission layers or a plurality of transmission layers;

or,

The precoding indication information indicates the precoding matrix in a bitmap manner;

or,

The precoding indication information indicates a precoding matrix formed by antenna selection vectors;

The number of antenna ports X is determined based on the number of antenna ports corresponding to the first channel, and/or the number of antenna ports X is determined based on an indication of a network device, and/or the number of antenna ports X is predefined; the antenna selection vector refers to a column vector having only one non-zero element.
The information transmission method according to claim 10, wherein the indication of the network device includes one or more of the following:

an indication of how the antenna ports are grouped; or

An indication of the type of codebook.
The information transmission method according to claim 1, wherein the method further comprises:

When the state of the first information is the third state or the value of the first information is the third value, determining that the first scheduling information also includes a layer number indication bit;

or,

When the state of the first information is the fourth state or the value of the first information is the fourth value, determining that the first scheduling information does not include a layer number indication bit;

or,

Determining that the first scheduling information also includes a layer number indication bit;

The layer number indication bit is used to indicate the number of transmission layers.
The information transmission method according to claim 1, wherein the method further comprises:

Acquire codebook configuration information sent by a network device; the codebook configuration information is used to determine a codebook corresponding to the first channel;

Determining a codebook corresponding to the first channel based on the first information includes:

When the state of the first information is the fifth state or the value of the first information is the fifth value, a codebook corresponding to the first channel is determined based on the codebook configuration information.
The information transmission method according to claim 13, wherein the codebook configuration information includes one or more of the following information:

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.
An information transmission method, applied to a network device, comprising:

Determine first scheduling information based on a codebook corresponding to the first channel;

In a case where the first scheduling information includes first information, the first scheduling information is sent to a terminal; and a codebook corresponding to the first channel corresponds to the first information.
The information transmission method according to claim 15, wherein the method further comprises:

Sending second information to the terminal; the second information is used to indicate that the first scheduling information includes the first information.
The information transmission method according to claim 16, wherein the second information is codebook subset information.
The information transmission method according to claim 16, wherein the method further comprises:

A bit width of the first information is determined, wherein the bit width of the first information is associated with the second information.
The information transmission method according to claim 15, wherein the first information is used to indicate a type and/or table corresponding to the codebook;

and / or,

The first information indicates a precoding matrix that is unavailable in a preset codebook.
The information transmission method according to claim 19, wherein, when the state of the first information is the first state or the value of the first information is the first numerical value, the first information is used to indicate one or more of the following types of codebooks:

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

When the state of the first information is the second state or the value of the first information is the second value, the first information is used to indicate one or more of the following types of codebooks:

Partially coherent codebook; or

Non-coherent codebook.
The information transmission method according to claim 15, wherein the first scheduling information includes precoding indication information, and the precoding indication information indicates a precoding matrix corresponding to the first channel;

The first information and the precoding indication information are carried through the same information field or parameter;

or,

The first information is carried through a first information field or a first parameter, and the precoding indication information is carried through a second information field or a second parameter.
The information transmission method according to claim 21, wherein:

The encoding method of the precoding indication information is associated with the first information;

and / or,

The generation method of the precoding matrix corresponding to the first channel is associated with the first information.
The information transmission method according to claim 21, wherein the precoding indication information indicates a precoding matrix with a number of antenna ports of X or a plurality of numbers of antenna ports of is a precoding matrix of X, and/or the precoding indication information indicates one transmission layer number or multiple transmission layer numbers;

or,

The precoding indication information indicates the precoding matrix in a bitmap manner;

or,

The precoding indication information indicates a precoding matrix formed by antenna selection vectors;

The number of antenna ports X is determined based on the number of antenna ports corresponding to the first channel, and/or the number of antenna ports X is determined based on an indication of a network device, and/or the number of antenna ports X is predefined; the antenna selection vector refers to a column vector having only one non-zero element.
The information transmission method according to claim 23, wherein the indication of the network device includes one or more of the following:

an indication of how the antenna ports are grouped; or

An indication of the type of codebook.
The information transmission method according to claim 15, wherein the method further comprises:

Sending codebook configuration information to the terminal; the codebook configuration information is used to determine a codebook corresponding to the first channel.
The information transmission method according to claim 25, wherein the codebook configuration information includes one or more of the following information:

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.
A terminal comprises a memory, a transceiver, and a processor;

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:

In a case where the first scheduling information includes first information, determining a codebook corresponding to the first channel based on the first information; the first information is information indicating the codebook;

The first channel is sent based on a codebook corresponding to the first channel.
The terminal according to claim 27, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

Acquire second information, and determine the number of antenna ports corresponding to the first channel;

When the number of antenna ports is greater than or equal to a first preset value, it is determined based on the second information that the first scheduling information includes the first information.
The terminal according to claim 28, wherein the second information is codebook subset information.
The terminal according to claim 28, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

determining a bit width of first information in the first scheduling information based on the second information;

Based on the bit width, the first information is determined.
The terminal according to claim 27, wherein the first information is used to indicate a type and/or table corresponding to the codebook;

and / or,

The first information indicates a precoding matrix that is unavailable in a preset codebook.
The terminal according to claim 31, wherein, when the state of the first information is the first state or the value of the first information is the first numerical value, the first information is used to indicate one or more of the following types of codebooks:

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

When the state of the first information is the second state or the value of the first information is the second value, the first information is used to indicate one or more of the following types of codebooks:

Partially coherent codebook; or

Non-coherent codebook.
The terminal according to claim 27, wherein the first scheduling information includes precoding indication information, and the precoding indication information indicates a precoding matrix corresponding to the first channel;

Sending the first channel based on a codebook corresponding to the first channel includes:

Determine a precoding matrix indicated by the precoding indication information from a codebook corresponding to the first channel;

The first channel is transmitted based on the precoding matrix.
The terminal according to claim 33, wherein the first information and the precoding indication information are carried by the same information field or parameter;

or,

The first information is carried through a first information field or a first parameter, and the precoding indication information is carried through a second information field or a second parameter.
The terminal according to claim 34, wherein the encoding method of the precoding indication information is associated with the first information;

and / or,

The generation method of the precoding matrix corresponding to the first channel is associated with the first information.
The terminal according to claim 33, wherein the precoding indication information indicates a precoding matrix with a number of antenna ports of X or a plurality of precoding matrices with a number of antenna ports of X, and/or the precoding indication information indicates a transmission layer number or a plurality of transmission layers. Number of input layers;

or,

The precoding indication information indicates the precoding matrix in a bitmap manner;

or,

The precoding indication information indicates a precoding matrix formed by antenna selection vectors;

The number of antenna ports X is determined based on the number of antenna ports corresponding to the first channel, and/or the number of antenna ports X is determined based on an indication of a network device, and/or the number of antenna ports X is predefined; the antenna selection vector refers to a column vector having only one non-zero element.
The terminal according to claim 36, wherein the indication of the network device comprises one or more of the following:

an indication of how the antenna ports are grouped; or

An indication of the type of codebook.
The terminal according to claim 27, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

When the state of the first information is the third state or the value of the first information is the third value, determining that the first scheduling information also includes a layer number indication bit;

or,

When the state of the first information is the fourth state or the value of the first information is the fourth value, determining that the first scheduling information does not include a layer number indication bit;

or,

Determining that the first scheduling information includes a layer number indication bit;

The layer number indication bit is used to indicate the number of transmission layers.
The terminal according to claim 27, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

Acquire codebook configuration information sent by a network device; the codebook configuration information is used to determine a codebook corresponding to the first channel;

Determining a codebook corresponding to the first channel based on the first information includes:

When the state of the first information is the fifth state or the value of the first information is the fifth value, a codebook corresponding to the first channel is determined based on the codebook configuration information.
The terminal according to claim 39, wherein the codebook configuration information includes one or more of the following information:

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.
A network device, comprising a memory, a transceiver, and a processor;

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:

Determine first scheduling information based on a codebook corresponding to the first channel;

In a case where the first scheduling information includes first information, the first scheduling information is sent to a terminal; and a codebook corresponding to the first channel corresponds to the first information.
The network device according to claim 41, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

Sending second information to the terminal; the second information is used to indicate that the first scheduling information includes the first information.
The network device according to claim 42, wherein the second information is codebook subset information.
The network device according to claim 42, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

A bit width of the first information is determined, wherein the bit width of the first information is associated with the second information.
The network device according to claim 41, wherein the first information is used to indicate a type and/or table corresponding to the codebook;

and / or,

The first information indicates a precoding matrix that is unavailable in a preset codebook.
The network device according to claim 45, wherein, when the state of the first information is the first state or the value of the first information is the first numerical value, the first information is used to indicate one or more of the following types of codebooks:

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

When the state of the first information is the second state or the value of the first information is the second value, the first information is used to indicate one or more of the following types of codebooks:

Partially coherent codebook; or

Non-coherent codebook.
The network device according to claim 41, wherein the first scheduling information includes precoding indication information, and the precoding indication information indicates a precoding matrix corresponding to the first channel;

The first information and the precoding indication information are carried through the same information field or parameter;

or,

The first information is carried through a first information field or a first parameter, and the precoding indication information is carried through a second information field or a second parameter.
The network device according to claim 47, wherein the precoding indication The encoding method of the information is associated with the first information;

and / or,

The generation method of the precoding matrix corresponding to the first channel is associated with the first information.
The network device according to claim 47, wherein the precoding indication information indicates a precoding matrix with a number of antenna ports of X or a plurality of precoding matrices with a number of antenna ports of X, and/or the precoding indication information indicates a number of transmission layers or a plurality of transmission layers;

or,

The precoding indication information indicates the precoding matrix in a bitmap manner;

or,

The precoding indication information indicates a precoding matrix formed by antenna selection vectors;

The number of antenna ports X is determined based on the number of antenna ports corresponding to the first channel, and/or the number of antenna ports X is determined based on an indication of a network device, and/or the number of antenna ports X is predefined; the antenna selection vector refers to a column vector having only one non-zero element.
The network device of claim 49, wherein the indication of the network device comprises one or more of the following:

an indication of how the antenna ports are grouped; or

An indication of the type of codebook.
The network device according to claim 41, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

Sending codebook configuration information to the terminal; the codebook configuration information is used to determine a codebook corresponding to the first channel.
The network device according to claim 51, wherein the codebook configuration information includes one or more of the following information:

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.
An information transmission device, comprising:

A first determining module, configured to determine a codebook corresponding to a first channel based on first information when the first scheduling information includes first information; the first information is information indicating a codebook;

The first sending module is configured to send the first channel based on a codebook corresponding to the first channel.
The information transmission device according to claim 53, further comprising a first acquisition module and a third determination module;

The first acquisition module is used to acquire second information and determine the number of antenna ports corresponding to the first channel;

The third determination module is used to determine, based on the second information, that the first scheduling information includes the first information when the number of antenna ports is greater than or equal to a first preset value.
The information transmission device according to claim 54, wherein the second information is codebook subset information.
The information transmission device according to claim 54, further comprising a fourth determination module and a fifth determination module;

The fourth determination module is used to determine the bit width of the first information in the first scheduling information based on the second information;

The fifth determination module is used to determine the first information based on the bit width.
The information transmission device according to claim 53, wherein the first The information is used to indicate the type and/or table corresponding to the codebook;

and / or,

The first information indicates a precoding matrix that is unavailable in a preset codebook.
The information transmission device according to claim 57, wherein, when the state of the first information is the first state or the value of the first information is the first numerical value, the first information is used to indicate one or more of the following types of codebooks:

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

When the state of the first information is the second state or the value of the first information is the second value, the first information is used to indicate one or more of the following types of codebooks:

Partially coherent codebook; or

Non-coherent codebook.
The information transmission device according to claim 53, wherein the first scheduling information includes precoding indication information, and the precoding indication information indicates a precoding matrix corresponding to the first channel;

Sending the first channel based on a codebook corresponding to the first channel includes:

Determine a precoding matrix indicated by the precoding indication information from a codebook corresponding to the first channel;

The first channel is transmitted based on the precoding matrix.
The information transmission device according to claim 59, wherein the first information and the precoding indication information are carried through the same information field or parameter;

or,

The first information is carried through a first information field or a first parameter, and the precoding indication information is carried through a second information field or a second parameter.
The information transmission device according to claim 60, wherein the encoding method of the precoding indication information is associated with the first information;

and / or,

The generation method of the precoding matrix corresponding to the first channel is associated with the first information.
The information transmission device according to claim 59, wherein the precoding indication information indicates a precoding matrix with a number of antenna ports of X or a plurality of precoding matrices with a number of antenna ports of X, and/or the precoding indication information indicates a number of transmission layers or a plurality of transmission layers;

or,

The precoding indication information indicates the precoding matrix in a bitmap manner;

or,

The precoding indication information indicates a precoding matrix formed by antenna selection vectors;

The number of antenna ports X is determined based on the number of antenna ports corresponding to the first channel, and/or the number of antenna ports X is determined based on an indication of a network device, and/or the number of antenna ports X is predefined; the antenna selection vector refers to a column vector having only one non-zero element.
The information transmission device according to claim 53, further comprising a sixth determination module; the sixth determination module is used to:

When the state of the first information is the third state or the value of the first information is the third value, determining that the first scheduling information also includes a layer number indication bit;

or,

When the state of the first information is the fourth state or the value of the first information is the fourth value, determining that the first scheduling information does not include a layer number indication bit;

or,

Determining that the first scheduling information includes a layer number indication bit;

The layer number indication bit is used to indicate the number of transmission layers.
The information transmission device according to claim 53, further comprising a second acquisition module;

The second acquisition module is used to acquire codebook configuration information sent by the network device; the codebook configuration information is used to determine the codebook corresponding to the first channel;

Determining a codebook corresponding to the first channel based on the first information includes:

When the state of the first information is the fifth state or the value of the first information is the fifth value, a codebook corresponding to the first channel is determined based on the codebook configuration information.
The information transmission device according to claim 64, wherein the codebook configuration information includes one or more of the following information:

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.
An information transmission device, comprising:

A second determining module, configured to determine first scheduling information based on a codebook corresponding to the first channel;

The second sending module is used to send the first scheduling information to the terminal when the first scheduling information includes first information; the codebook corresponding to the first channel corresponds to the first information.
The information transmission device according to claim 66, further comprising a third sending module;

The third sending module is used to send second information to the terminal; the second information is used to indicate that the first scheduling information includes the first information.
The information transmission device according to claim 67, wherein the second information is codebook subset information.
The information transmission device according to claim 67, further comprising an eighth determination module;

The eighth determination module is used to determine a bit width of the first information, and the bit width of the first information is associated with the second information.
The information transmission device according to claim 66, wherein the first information is used to indicate a type and/or table corresponding to the codebook;

and / or,

The first information indicates a precoding matrix that is unavailable in a preset codebook.
The information transmission device according to claim 70, wherein, when the state of the first information is the first state or the value of the first information is the first numerical value, the first information is used to indicate one or more of the following types of codebooks:

Fully coherent codebook;

Partially coherent codebook; or

Non-coherent codebook;

and / or,

When the state of the first information is the second state or the value of the first information is the second value, the first information is used to indicate one or more of the following types of codebooks:

Partially coherent codebook; or

Non-coherent codebook.
The information transmission device according to claim 66, wherein the first scheduling information includes precoding indication information, and the precoding indication information indicates a precoding matrix corresponding to the first channel;

The first information and the precoding indication information are carried through the same information field or parameter;

or,

The first information is carried by a first information field or a first parameter, and the precoding indication The information is carried by the second information field or the second parameter.
The information transmission device according to claim 72, wherein the encoding method of the precoding indication information is associated with the first information;

and / or,

The generation method of the precoding matrix corresponding to the first channel is associated with the first information.
The information transmission device according to claim 72, wherein the precoding indication information indicates a precoding matrix with a number of antenna ports of X or a plurality of precoding matrices with a number of antenna ports of X, and/or the precoding indication information indicates a number of transmission layers or a plurality of transmission layers;

or,

The precoding indication information indicates the precoding matrix in a bitmap manner;

or,

The precoding indication information indicates a precoding matrix formed by antenna selection vectors;

The number of antenna ports X is determined based on the number of antenna ports corresponding to the first channel, and/or the number of antenna ports X is determined based on an indication of a network device, and/or the number of antenna ports X is predefined; the antenna selection vector refers to a column vector having only one non-zero element.
The information transmission device according to claim 66, further comprising a fourth sending module;

The fourth sending module is used to send codebook configuration information to the terminal; the codebook configuration information is used to determine the codebook corresponding to the first channel.
The information transmission device according to claim 75, wherein the codebook configuration information includes one or more of the following information:

Number of antenna groups;

Number of antennas in the horizontal dimension;

Number of antennas in the vertical dimension;

Oversampling factor in the horizontal dimension;

Oversampling factor in the vertical dimension;

The phase rotation factor between antenna groups; or

Phase rotation factor between polarized antennas.
A computer-readable storage medium storing a computer program, wherein the computer program is used to cause a computer to execute the information transmission method according to any one of claims 1 to 27.