WO2024067677A1

WO2024067677A1 - Information indication method and apparatus, device, and readable storage medium

Info

Publication number: WO2024067677A1
Application number: PCT/CN2023/121940
Authority: WO
Inventors: 李岩; 曹昱华; 左君; 郑毅; 王飞
Original assignee: 中国移动通信有限公司研究院; 中国移动通信集团有限公司
Priority date: 2022-09-27
Filing date: 2023-09-27
Publication date: 2024-04-04
Also published as: CN117792445A

Abstract

Embodiments of the present disclosure provide an information indication method and apparatus, a device, and a readable storage medium. The method comprises: sending first information, wherein the first information is used for indicating second information and/or a first parameter; the second information is used for indicating a first TPMI of a terminal; and the first parameter is used for constructing a transmission precoding matrix of the terminal with the first TPMI.

Description

Information indication method, device, equipment and readable storage medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese patent application No. 202211185364.2 filed in China on September 27, 2022, the entire contents of which are incorporated herein by reference.

Technical Field

The embodiments of the present disclosure relate to the field of communication technology, and in particular to an information indication method, apparatus, device, and readable storage medium.

Background technique

Currently, only 4-stream uplink transmission is supported for terminals with a maximum of 4T (Transmit), so only codebooks for terminals with a maximum of 1T, 2T, and 4T transmitting 1, 2, 3, and 4 streams are designed. How to indicate the transmission precoding matrix of the terminal is an urgent problem to be solved.

Summary of the invention

The embodiments of the present disclosure provide an information indication method, apparatus, device and readable storage medium to solve the problem of how to indicate a transmission precoding matrix of a terminal.

In a first aspect, an information indication method is provided, which is applied to a network device, comprising:

Sending the first message;

The first information is used to indicate the second information and/or the first parameter, and the second information is used to indicate the first TPMI of the terminal;

The first parameter is used to construct a transmission precoding matrix of the terminal together with the first TPMI.

Optionally, the first parameter and the first TPMI are multiplied to construct a transmission precoding matrix of the terminal.

Optionally, the first TPMI is used to indicate the transmission precoding matrix of the first antenna or the first antenna group of the terminal, the first parameter and the first TPMI construct a second transmission precoding matrix, and the second transmission precoding matrix is used to indicate the transmission precoding matrix of other antennas or other antenna groups of the terminal.

Optionally, a transmission precoding matrix constructed based on the first parameter and the first TPMI is full The correlation between different columns is 0.

Optionally, the transmission precoding matrix constructed based on the first parameter and the first TPMI supports a fully coherent codebook, a partially coherent codebook, or an incoherent codebook.

Optionally, a transmission precoding matrix constructed based on the first parameter and the first TPMI supports the terminal to perform uplink transmission using part of the antennas.

Optionally, the first parameter is a matrix, and/or a real number, and/or an imaginary number, and the matrix is a two-dimensional matrix or a four-dimensional matrix.

Optionally, the first parameter includes: or

Optionally, the first information includes DCI and/or MAC CE.

In a second aspect, an information indication method is provided, which is applied to a terminal, and includes:

First information is received, where the first information indicates second information and/or a first parameter, where the second information is used to indicate a first TPMI of a terminal; and the first parameter and the first TPMI are used to construct a transmission precoding matrix of the terminal.

Optionally, the first TPMI is used to indicate the transmission precoding matrix of the first antenna or the first antenna group of the terminal, the first parameter and the first TPMI construct a second transmission precoding matrix, and the second transmission precoding matrix is used to indicate the transmission precoding matrix of other antennas or other antenna groups of the terminal

Optionally, a transmission precoding matrix constructed based on the first parameter and the first TPMI satisfies that a correlation between different columns is 0.

Optionally, a transmission precoding matrix support constructed based on the first parameter and the first TPMI Support a fully coherent codebook, a partially coherent codebook, or an incoherent codebook.

Optionally, the first parameter includes: or

Optionally, the first information includes DCI and/or MAC CE.

In a third aspect, an information indication device is provided, which is applied to a network device, including:

A sending module, used for sending first information;

The first information is used to indicate the second information and/or the first parameter, the second information is used to indicate the first TPMI of the terminal; and the first parameter is used to construct a transmission precoding matrix of the terminal together with the first TPMI.

In a fourth aspect, an information indication device is provided, which is applied to a terminal, including:

The receiving module is used to receive first information, where the first information indicates second information and/or a first parameter, wherein the second information is used to indicate a first TPMI of a terminal; and the first parameter is used to construct a transmission precoding matrix of the terminal with the first TPMI.

In a fifth aspect, a communication device is provided, comprising a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect or the second aspect.

In a sixth aspect, a readable storage medium is provided, wherein a program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the method described in the first aspect or the second aspect is implemented. A step of.

In an embodiment of the present disclosure, a network device sends first information to a terminal; the first information is used to indicate second information and/or a first parameter, and the second information is used to indicate a first TPMI of the terminal; the first parameter and the first TPMI are used to construct a transmission precoding matrix of the terminal. For example, when the first TPMI is a 4×4 matrix and the first parameter is a 2×2 matrix, multiplying the first parameter by the first TPMI can construct an 8×8 transmission precoding matrix of the terminal, thereby realizing a codebook that instructs the terminal to perform 8-stream transmission, so that the terminal can support a maximum of 8-stream uplink transmission, thereby improving the uplink transmission performance of the system.

BRIEF DESCRIPTION OF THE DRAWINGS

Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present disclosure. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

FIG1 is a flow chart of an information indication method provided by an embodiment of the present disclosure;

FIG2 is a second flowchart of an information indication method provided by an embodiment of the present disclosure;

FIG3 is a schematic diagram of an information indicating device provided by an embodiment of the present disclosure;

FIG4 is a second schematic diagram of an information indication device provided by an embodiment of the present disclosure;

FIG5 is a schematic diagram of a communication device provided by an embodiment of the present disclosure.

Detailed ways

The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are 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.

The term "comprise" and any variations thereof in the specification and claims of the present disclosure are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses. In addition, the use of "and/or" in the specification and claims indicates at least one of the connected objects, for example, A and/or B, which means that there are three situations including A alone, B alone, and both A and B.

In the embodiments of the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present disclosure should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

The terminal involved in the present disclosure may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/virtual reality (virtual The terminal side devices include: virtual reality (VR) devices, robots, wearable devices (Wearable Device), vehicle UE (VUE), pedestrian UE (PUE), smart home (home appliances with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (personal computers, PCs), teller machines or self-service machines, etc., and wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the specific type of the terminal is not limited in the embodiments of the present disclosure.

The current protocol only supports uplink 4-stream transmission for terminals with a maximum of 4T. Therefore, the current protocol only designs codebooks for terminals with a maximum of 1T, 2T, and 4T to transmit 1, 2, 3, and 4 streams.

Referring to FIG. 1 , an embodiment of the present disclosure provides an information indication method, which is applied to a network device, such as a base station, and the specific steps include: Step 101 .

Step 101: Sending a first message;

The first information is used to indicate the second information and/or the first parameter, and the second information is used to indicate a first transmission precoding matrix indicator (TPMI) of the terminal;

The first parameter and the first TPMI are used to construct a transmission precoding matrix of the terminal.

For example, the first information is used to indicate the second information, and the first TPMI can be used together with the first parameter to construct a transmission precoding matrix of the terminal, wherein the first parameter can be an agreed parameter or a default parameter. parameter or the previously indicated parameters.

For another example, the first information is used to indicate a first parameter, and the first parameter and a first TPMI can construct a transmission precoding matrix of the terminal, wherein the first TPMI can be a default TPMI or a previously indicated TPMI.

For another example, the first information is used to indicate a first parameter and the second information, and the first parameter and the first TPMI can construct a transmission precoding matrix of the terminal.

In one implementation, the first parameter and the first TPMI are multiplied to construct a transmission precoding matrix of the terminal.

In one embodiment, the first TPMI (TPMI-1) is used to indicate the transmission precoding matrix of the first antenna or the first antenna group of the terminal, and the second transmission precoding matrix (TPMI-2) constructed by the first parameter and the first TPMI-1 is used to indicate the transmission precoding matrix of other antennas or other antenna groups of the terminal, that is, TPMI-2 can be obtained by multiplying a first parameter on the basis of TPMI-1, so that TPMI-2 can be calculated through TPMI-1, and TPMI-2 does not need to be sent separately.

Optionally, the first parameter is used to perform phase rotation on the first TPMI. The first parameter may also be referred to as a phase rotation factor or a rotation factor matrix. For example, by superimposing the first parameter on a codebook for maximum 2 or 4 stream transmission corresponding to the TPMI, a codebook for maximum 8 stream transmission may be obtained.

The first TPMI is the TPMI of a group of antennas of the terminal. Optionally, the antennas of the terminal can be divided into 2 groups, namely, a first group of antennas and a second group of antennas; or, the antennas of the terminal can be divided into 4 groups, namely, a first group of antennas, a second group of antennas, a third group of antennas and a fourth group of antennas.

Taking the case that the antennas of the terminal are divided into 2 groups, the network device only needs to indicate the TPMI-1 of the first group of antennas to the terminal. The codebook corresponding to the maximum 4-stream transmission of the TPMI-1 is W0. The first parameter includes {a, b, c, d}. The first parameter is multiplied on the basis of TPMI-1 to obtain the TPMI-2 of the second group of antennas, where a, b, c, d can be a two-dimensional matrix, and/or a real number, and/or an imaginary number. TPMI-1 and TPMI-2 together constitute the codebook W_(8×8) of the maximum 8-stream transmission of the terminal, avoiding the problem of large signaling overhead of the codebook for the maximum 8-stream transmission of the terminal directly indicating the first information, and can save the signaling overhead of the first information.

For example, For example

In the embodiment of the present disclosure, by indicating the first TPMI and then superimposing and indicating the first parameter, the transmission precoding matrix of the terminal can be determined, thereby saving signaling overhead.

In an implementation manner of the present disclosure, a transmission precoding matrix constructed based on the first parameter and the first TPMI satisfies that correlation between different columns is zero.

by For example, where a*b+c*d=0.

In one embodiment of the present disclosure, the transmission precoding matrix constructed based on the first parameter and the first TPMI supports a fully coherent codebook, a partially coherent codebook, or an incoherent codebook.

For example, if the terminal is fully coherent, it is necessary to indicate the Full-coherent codebook to the 8T Full-coherent terminal, that is, a non-zero codebook, and a, b, c, d cannot be 0:

It is also necessary to be able to indicate a partially coherent codebook to an 8T Full-coherent terminal, that is, a codebook with a diagonal matrix of 0, b = c = 0:

It is also necessary to be able to indicate a non-coherent codebook to the 8T Full-coherent terminal, that is, a codebook with a diagonal matrix of 1, that is, a=d=1, b=c=0:

in,

In an implementation manner of the present disclosure, a transmission precoding matrix constructed based on the first parameter and the first TPMI supports the terminal to perform uplink transmission using part of antennas.

For example, when only one antenna group is selected for transmission, a=1, b=c=d=0:

In one embodiment of the present disclosure, the terminal has two antenna groups, and the first parameter is a two-dimensional matrix, and/or a real number, and/or an imaginary number.

Optionally, the first parameter includes: or

In one implementation, the codebook corresponding to the maximum 4-stream transmission of the first TPMI is W ₀ , and the first parameter The transmission precoding matrix of the terminal used for constructing the first TPMI is W _8×8 .

When the first argument is a matrix:

Optional, the first argument is a matrix When , the terminal's transmission precoding matrix is

When the first argument is a real number:

Optionally, if the first parameter = 0, the transmission precoding matrix of the second antenna group of the terminal is 0×W ₀ = 0, that is, the transmission precoding matrix of the terminal is Equivalent to the first parameter being a matrix Effect.

Optionally, if the first parameter = 1, the transmission precoding matrix of the second antenna group of the terminal is 1×W ₀ =W ₀ , that is, the transmission precoding matrix of the terminal is Equivalent to the first parameter being a matrix Effect.

Optionally, the first parameter = -1, the negative sign represents that the transmission precoding matrix of the terminal is a full-coherent matrix, then the transmission precoding matrix of the second antenna group of the terminal is [W ₀ -W ₀ ], that is, the transmission precoding matrix of the terminal is Equivalent to the first parameter being a matrix Effect.

In one embodiment, when the first parameter is an imaginary number:

Optionally, the first parameter = -j, and the negative sign represents that the transmission precoding matrix of the terminal is a full-coherent matrix. Then the transmission precoding matrix of the second antenna group of the terminal is [W ₀ -jW ₀ ], that is, the transmission precoding matrix of the terminal is Equivalent to the first parameter being a matrix Effect.

In an implementation manner of the present disclosure, the first information carries first indication information for indicating an index of the first parameter, and the first indication information is 2 bits.

In one embodiment of the present disclosure, the first TPMI is used to indicate a transmission precoding matrix of a first antenna or a first antenna group of a terminal, the first parameter and the first TPMI construct a second transmission precoding matrix, and the second transmission precoding matrix is used to indicate a transmission precoding matrix of other antennas or other antenna groups of the terminal.

In one embodiment of the present disclosure, the terminal has four antenna groups, and the first parameter is a four-dimensional matrix, and/or a real number, and/or an imaginary number.

Optionally, the first parameter includes: or

In one embodiment, when the first parameter is a matrix:

In one embodiment, when the first parameter is a real number or an imaginary number:

Optionally, the first parameter = {0,0,0}, then the transmission pre-coding of the second, third, and fourth antenna groups of the terminal The code matrix is 0×W ₀ = 0, that is, the transmission precoding matrix of the terminal is Equivalent to the first parameter being a matrix Effect.

Optionally, the first parameter = {1, 0, 0}, then the transmission precoding matrix of the second antenna group of the terminal is 1×W ₀ = W ₀ , and the transmission precoding matrix of the third and fourth antenna groups is 0×W ₀ = 0, that is, the transmission precoding matrix of the terminal is Equivalent to the first parameter being a matrix Effect.

Optionally, the first parameter = {1, 1, 0}, then the transmission precoding matrix of the second and third antenna groups of the terminal is 1×W ₀ = W ₀ , and the transmission precoding matrix of the fourth antenna group is 0×W ₀ = 0, that is, the transmission precoding matrix of the terminal is Equivalent to the first parameter being a matrix Effect.

Optionally, the first parameter = {1, 1, 1}, then the transmission precoding matrix of the second, third, and fourth antenna groups of the terminal is 1×W ₀ =W ₀ , that is, the transmission precoding matrix of the terminal is Equivalent to the first parameter being a matrix Effect.

Optionally, the first parameter = {-1, 1, -1}, then the transmission precoding matrix of the second and fourth antenna groups of the terminal is [W ₀ -W ₀ ], and the transmission precoding matrix of the third antenna group of the terminal is [W ₀ W ₀ ], that is, the transmission precoding matrix of the terminal is Equivalent to the first parameter being a matrix Effect.

Optionally, the first parameter = {-j, 1, -j}, then the transmission precoding matrix of the second and fourth antenna groups of the terminal is [jW ₀ -jW ₀ ], and the transmission precoding matrix of the third antenna group of the terminal is [W ₀ W ₀ ], that is, the terminal's The transmit precoding matrix is Equivalent to the first parameter being a matrix Effect.

Optionally, the first parameter = [W ₀ -W ₀ W ₀ -W ₀ ], the transmission precoding matrix of the second antenna group of the terminal is [W ₀ -W ₀ W ₀ -W ₀ ], the transmission precoding matrix of the third antenna group of the terminal is [W ₀ W ₀ -W ₀ -W ₀ ], and the transmission precoding matrix of the fourth antenna group of the terminal is [W ₀ -W ₀ -W ₀ W ₀ ], that is, the transmission precoding matrix of the terminal is Equivalent to the first parameter being a matrix Effect.

Optionally, the first parameter = {-1, -j, -j}, then the transmission precoding matrix of the second antenna group of the terminal is [W ₀ -W ₀ W ₀ -W ₀ ], the transmission precoding matrix of the third antenna group of the terminal is [W ₀ -W ₀ W ₀ -W ₀ ][jW ₀ jW ₀ -jW ₀ -jW ₀ ], and the transmission precoding matrix of the fourth antenna group of the terminal is [jW ₀ -jW ₀ -jW ₀ jW ₀ ], that is, the transmission precoding matrix of the terminal is Equivalent to the first parameter being a matrix Effect.

In an implementation manner of the present disclosure, the first information carries second indication information for indicating an index of the first parameter, and the second indication information is 3 bits.

In one embodiment of the present disclosure, the first information includes downlink control information (Downlink Control Information, DCI) and/or media access control (Medium Access Control, MAC) control element (Control Element, CE).

Optionally, the DCI and/or MAC CE adds 2 bits of first indication information or 3 bits of second indication information to indicate a codebook for maximum 8-stream transmission while minimizing the DCI indication overhead, as shown in Table 1-4.

Table 1: First parameters.

Table 2: First parameters.

Table 3: First parameters.

Table 4: First parameters.

In the disclosed embodiment, the transmission precoding matrix of the terminal is indicated by the first parameter and the first TPMI, for example, the network supports 8T terminals, and the terminal can support up to 8 streams uplink transmission, thereby improving the uplink transmission performance of the system.

2 , an embodiment of the present disclosure provides an information indication method, which is applied to a terminal, and specifically includes the following steps: Step 201 .

Step 201: Receive first information, where the first information indicates second information and/or a first parameter, where the second information is used to indicate a first TPMI of a terminal; and the first parameter is used to construct a transmission precoding matrix of the terminal together with the first TPMI.

For example, the first information is used to indicate the second information, and the first TPMI can be used together with a first parameter to construct a transmission precoding matrix of the terminal, wherein the first parameter can be an agreed parameter, a default parameter, or a previously indicated parameter.

For another example, the first information is used to indicate the first parameter and the second information. The first parameter can be A TPMI constructs a transmission precoding matrix of the terminal.

In one implementation, FIG. 2 may still include step 202 .

Step 202: construct a transmission precoding matrix of the terminal according to the first TPMI and the first parameter.

In an implementation manner of the present disclosure, the first parameter and the first TPMI are multiplied to construct a transmission precoding matrix of the terminal.

Optionally, the transmission precoding matrix of the terminal includes the second TPMI of the terminal. For example, in step 202, the first TPMI and the first parameter are multiplied to obtain the second TPMI of the terminal.

Optionally, the first parameter includes: or

In one embodiment of the present disclosure, the first information includes DCI and/or MAC CE.

Referring to FIG. 3 , an embodiment of the present disclosure provides an information indication device, which is applied to a network device. The device 300 includes:

A sending module 301, configured to send first information;

In one embodiment of the present disclosure, based on the first parameter and the first TPMI, The transmission precoding matrix supports a fully coherent codebook, a partially coherent codebook, or an incoherent codebook.

Optionally, the first parameter includes: or

The device provided in the embodiment of the present disclosure can implement each process implemented by the embodiment shown in Figure 1 and achieve the same technical effect. To avoid repetition, it will not be described here.

Referring to FIG. 4 , an embodiment of the present disclosure provides an information indication device, which is applied to a terminal. The device 400 includes:

The receiving module 401 is used to receive first information, where the first information indicates second information and/or a first parameter, where the second information is used to indicate a first TPMI of a terminal; and the first parameter is used to construct a transmission precoding matrix of the terminal with the first TPMI.

In one embodiment of the present disclosure, the apparatus 400 further includes:

The processing module 402 is configured to construct a transmission precoding matrix of the terminal according to the first TPMI and the first parameter.

Optionally, the first parameter includes: or

The device provided in the embodiment of the present disclosure can implement each process implemented by the embodiment shown in Figure 2 and achieve the same technical effect. To avoid repetition, it will not be described here.

As shown in FIG5 , the embodiment of the present disclosure further provides a communication device 500, including a processor 501, a memory 502, and a program or instruction stored in the memory 502 and executable on the processor 501. When the program or instruction is executed by the processor 501, each process of the embodiment shown in FIG1 or FIG2 is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

The embodiments of the present disclosure also provide a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the embodiment shown in FIG. 1 or FIG. 2 is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

The method or algorithm steps described in conjunction with the content disclosed in the present disclosure may be implemented in a hardware manner or by executing software instructions in a processor. The software instructions may be composed of corresponding software modules, and the software modules may be stored in RAM, flash memory, ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, mobile hard disks, read-only optical disks, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium may also be a component of the processor. The processor and the storage medium may be carried in an application-specific integrated circuit (ASIC). In addition, the ASIC may be carried in a core network interface device. Of course, the processor and the storage medium may also exist in the core network interface device as discrete components.

Those skilled in the art should be aware that in one or more of the above examples, the functions described in the present disclosure can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. Storage media can be any available media that can be accessed by a general or special-purpose computer.

The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the present disclosure. It should be understood that the above description is only the specific implementation method of the present disclosure and is not intended to limit the protection scope of the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the present disclosure should be included in the protection scope of the present disclosure.

It should be understood by those skilled in the art that the embodiments of the present disclosure may be provided as a method, a system, or a computer program product. Therefore, the embodiments of 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 embodiments of 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, compact disc read-only memory (CD-ROM), optical storage, etc.) containing computer-usable program code.

The disclosed embodiments are described with reference to the flowcharts and/or block diagrams of the methods, devices (systems), and computer program products according to the disclosed embodiments. It should be understood that each process and/or box in the flowchart and/or block diagram, as well as the combination of the processes and/or boxes in the flowchart and/or block diagram, can be implemented by computer program instructions. These computer program 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 computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured 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 computer program instructions can also be loaded into a computer or other programmable data processing device. A series of operational steps are performed on a computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more flows of the flowchart and/or one or more blocks of the block diagram.

Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the embodiments 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 indication method is applied to a network device, wherein the method comprises:

Sending the first message;

The first information is used to indicate the second information and/or the first parameter, and the second information is used to indicate a first transmission precoding matrix indicator TPMI of the terminal;

The first parameter and the first TPMI are used to construct a transmission precoding matrix of the terminal.
The method according to claim 1, wherein the first parameter and the first TPMI construct a transmission precoding matrix of the terminal by multiplying each other.
The method according to claim 1, wherein the first TPMI is used to indicate a transmission precoding matrix of a first antenna or a first antenna group of a terminal, the first parameter and the first TPMI construct a second transmission precoding matrix, and the second transmission precoding matrix is used to indicate a transmission precoding matrix of other antennas or other antenna groups of the terminal.
The method according to claim 1, wherein the transmission precoding matrix constructed based on the first parameter and the first TPMI satisfies that the correlation between different columns is 0.
The method according to claim 1, wherein the transmission precoding matrix constructed based on the first parameter and the first TPMI supports a fully coherent codebook, a partially coherent codebook, or a non-coherent codebook.
The method according to claim 1, wherein the transmission precoding matrix constructed based on the first parameter and the first TPMI supports the terminal to use part of the antennas for uplink transmission.
The method according to claim 1, wherein the first parameter is a matrix, and/or a real number, and/or an imaginary number, and the matrix is a two-dimensional matrix or a four-dimensional matrix.
The method according to claim 7, wherein the first parameter comprises: or
The method according to claim 7, wherein the first parameter comprises: or
An information indication method, applied to a terminal, wherein the method comprises:

receiving first information, wherein the first information indicates second information and/or a first parameter;

The second information is used to indicate a first TPMI of the terminal; and the first parameter is used to construct a transmission precoding matrix of the terminal together with the first TPMI.
The method according to claim 10, wherein the first parameter and the first TPMI construct a transmission precoding matrix of the terminal by multiplying each other.
The method according to claim 10, wherein the first TPMI is used to indicate a transmission precoding matrix of a first antenna or a first antenna group of a terminal, the first parameter and the first TPMI construct a second transmission precoding matrix, and the second transmission precoding matrix is used to indicate a transmission precoding matrix of other antennas or other antenna groups of the terminal.
The method according to claim 10, wherein the transmission precoding matrix constructed based on the first parameter and the first TPMI satisfies that the correlation between different columns is 0.
The method according to claim 10, wherein the transmission precoding matrix constructed based on the first parameter and the first TPMI supports a fully coherent codebook, a partially coherent codebook, or a non-coherent codebook.
The method according to claim 10, wherein the transmission precoding matrix constructed based on the first parameter and the first TPMI supports the terminal to use part of the antennas for uplink transmission.
The method according to claim 10, wherein the first parameter is a matrix, and/or a real number, and/or an imaginary number, and the matrix is a two-dimensional matrix or a four-dimensional matrix.
The method according to claim 16, wherein the first parameter comprises: or
The method according to claim 17, wherein:

The first parameter includes: or
An information indication device is applied to a network device, wherein the information indication device comprises:

A sending module, used for sending first information;

The first information is used to indicate the second information and/or the first parameter, the second information is used to indicate the first TPMI of the terminal; the first parameter and the first TPMI are used to construct a transmission precoding matrix of the terminal.
An information indication device is applied to a terminal, wherein the information indication device comprises:

The receiving module is used to receive first information, where the first information indicates second information and/or a first parameter, wherein the second information is used to indicate a first TPMI of a terminal, and the first parameter is used to construct a transmission precoding matrix of the terminal with the first TPMI.
A communication device comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method as claimed in any one of claims 1 to 18.
A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the method as claimed in any one of claims 1 to 18.