CN117792445A - Information indication method, device, equipment and readable storage medium - Google Patents

Information indication method, device, equipment and readable storage medium Download PDF

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Publication number
CN117792445A
CN117792445A CN202211185364.2A CN202211185364A CN117792445A CN 117792445 A CN117792445 A CN 117792445A CN 202211185364 A CN202211185364 A CN 202211185364A CN 117792445 A CN117792445 A CN 117792445A
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CN
China
Prior art keywords
terminal
parameter
tpmi
precoding matrix
information
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CN202211185364.2A
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Chinese (zh)
Inventor
李岩
曹昱华
左君
郑毅
王飞
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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Application filed by China Mobile Communications Group Co Ltd, China Mobile Communications Ltd Research Institute filed Critical China Mobile Communications Group Co Ltd
Priority to CN202211185364.2A priority Critical patent/CN117792445A/en
Priority to PCT/CN2023/121940 priority patent/WO2024067677A1/en
Publication of CN117792445A publication Critical patent/CN117792445A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the application provides an information indication method, an information indication device, information indication equipment and a readable storage medium, wherein the information indication method comprises the following steps: transmitting first information; the first information is used for indicating second information and/or first parameters, and the second information is used for indicating a first TPMI of the terminal; 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
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to an information indication method, an information indication device, information indication equipment and a readable storage medium.
Background
Only uplink 4-stream transmission of a maximum 4T (Transmit) terminal is supported at present, so that only codebooks of 1 stream, 2 stream, 3 stream and 4 stream are designed at present for maximum 1T, 2T and 4T terminals. How to instruct a terminal to transmit a precoding matrix is a problem to be solved.
Disclosure of Invention
The embodiment of the application provides an information indicating method, an information indicating device, information indicating equipment and a readable storage medium, which solve the problem of indicating a transmission precoding matrix of a terminal.
In a first aspect, an information indication method is provided, applied to a network device, and includes:
transmitting first information;
the first information is used for indicating second information and/or first parameters, and the second information is used for indicating a first TPMI of the terminal;
the first parameter is used for constructing a transmission precoding matrix of the terminal with the first TPMI.
Optionally, the first parameter and the first TPMI construct a transmission precoding matrix of the terminal through multiplication operation.
Optionally, the first TPMI is configured to instruct a transmission precoding matrix of a first antenna or a 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 configured to instruct transmission precoding matrices of other antennas or other antenna groups of the terminal.
Optionally, the transmission precoding matrix constructed based on the first parameter and the first TPMI satisfies a correlation between different columns of 0.
Optionally, the transmission precoding matrix constructed based on the first parameter and the first TPMI supports a fully coherent codebook, or a partially coherent codebook, or a non-coherent codebook.
Optionally, the transmission precoding matrix constructed based on the first parameter and the first TPMI supports the terminal to perform uplink transmission by using a part of 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 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:
receiving first information, wherein the first information indicates second information and/or first parameters, and the second information is used for indicating a first TPMI of a terminal; the first parameter and the first TPMI are used to construct a transmission precoding matrix of the terminal.
Optionally, the first parameter and the first TPMI construct a transmission precoding matrix of the terminal through multiplication operation.
Optionally, the first TPMI is configured to instruct a transmission precoding matrix of a first antenna or a 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 configured to instruct transmission precoding matrices of other antennas or other antenna groups of the terminal
Optionally, the transmission precoding matrix constructed based on the first parameter and the first TPMI satisfies a correlation between different columns of 0.
Optionally, the transmission precoding matrix constructed based on the first parameter and the first TPMI supports a fully coherent codebook, or a partially coherent codebook, or a non-coherent codebook.
Optionally, the transmission precoding matrix constructed based on the first parameter and the first TPMI supports the terminal to perform uplink transmission by using a part of 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 parameter includes: or->
Optionally, the first information includes DCI and/or MAC CE.
In a third aspect, an information indicating apparatus is provided, applied to a network device, including:
the sending module is used for sending the first information;
the first information is used for indicating second information and/or first parameters, and the second information is used for indicating a first TPMI of the terminal; the first parameter is used for constructing a transmission precoding matrix of the terminal with the first TPMI.
In a fourth aspect, an information indicating apparatus is provided, which is applied to a terminal, and includes:
the terminal comprises a receiving module, a receiving module and a processing module, wherein the receiving module is used for receiving first information, the first information indicates second information and/or first parameters, and the second information is used for indicating a first TPMI of the terminal; the first parameter is used for constructing a transmission precoding matrix of the terminal with the first TPMI.
In a fifth aspect, there is provided a communications device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor effecting the steps of the manner described in the first or second aspect.
In a sixth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor performs the steps of the manner described in the first or second aspect.
In the embodiment of the application, the network equipment sends first information to the terminal; the first information is used for indicating second information and/or first parameters, and the second information is used for indicating a first TPMI of the terminal; the first parameter and the first TPMI are used for constructing 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, the first parameter is multiplied by the first TPMI to construct an 8×8 transmission precoding matrix of the terminal, so that a codebook for indicating the terminal to perform 8-stream transmission is realized, the terminal can support the maximum 8-stream uplink transmission, and the uplink transmission performance of the system is improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is one of the flowcharts of an information indication method provided in an embodiment of the present application;
FIG. 2 is a second flowchart of an information indication method according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of an information indicating device according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a second information indicating apparatus according to the embodiment of the present application;
fig. 5 is a schematic diagram of a communication device provided in an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means at least one of the connected objects, e.g., a and/or B, meaning that it includes a single a, a single B, and that there are three cases of a and B.
In the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
The terminal referred to in the present application may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or furniture, etc.), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, etc., and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that, the embodiment of the present application is not limited to a specific type of terminal.
The current protocol only supports uplink 4-stream transmission of the maximum 4T terminal, so the current protocol only designs the maximum 1T, 2T and 4T terminal to transmit 1-stream, 2-stream, 3-stream and 4-stream codebooks.
Referring to fig. 1, an embodiment of the present application provides an information indication method, which is applied to a network device, such as a base station, and includes the following specific steps: step 101.
Step 101: transmitting first information;
wherein the first information is used for indicating second information and/or first parameters, and the second information is used for indicating a first transmission precoding matrix indicator (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 may construct a transmission precoding matrix of the terminal with a first parameter, where the first parameter may be a default parameter or a parameter indicated previously.
For another example, the first information is used to indicate a first parameter, and the first parameter may construct a transmission precoding matrix of the terminal with a first TPMI, where the first TPMI may be a default TPMI or a TPMI indicated previously.
For another example, the first information is used to indicate a first parameter and second information, where the first parameter may construct a transmission precoding matrix of the terminal with the first TPMI.
In one embodiment, the first parameter and the first TPMI construct a transmission precoding matrix of the terminal through a multiplication operation.
In one embodiment, the first TPMI (TPMI-1) is configured to indicate a transmission precoding matrix of a first antenna or a first antenna group of the terminal, the first parameter and the second transmission precoding matrix (TPMI-2) configured by the first TPMI-1 are configured to indicate transmission precoding matrices of other antennas or other antenna groups of the terminal, that is, the TPMI-2 can be obtained by multiplying the TPMI-1 by a first parameter, so that the TPMI-2 can be calculated by the TPMI-1 without separately issuing the TPMI-2.
Optionally, the first parameter is used to perform phase rotation on the first TPMI, where the first parameter may also be referred to as a phase rotation factor or a rotation factor matrix, for example, the first parameter is superimposed on a codebook corresponding to the TPMI and having a maximum 2 or 4 streams, so as to obtain a codebook having a maximum 8 streams.
The first TPMI is a TPMI of a group of antennas of the terminal, and optionally, the antennas of the terminal may be divided into 2 groups, that is, the first group of antennas and the second group of antennas are included; alternatively, the antennas of the terminal may be divided into 4 groups, i.e. comprise a first group of antennas, a second group of antennas, a third group of antennas and a fourth group of antennas.
Taking the terminal antennas as 2 groups as an example, the network device only needs to indicate the TPMI-1 of the first group of antennas for the terminal, where the codebook corresponding to the TPMI-1 with maximum 4 stream transmission is W 0 The first parameter comprises { a, b, c, d }, and TPMI-2 of the second set of antennas is obtained by multiplying the first parameter on the basis of TPMI-1, wherein a, b, c, d may be a two-dimensional matrix, and/or real numbers, and/or imaginary numbers. TPMI-1 and TPMI-2 together form a codebook W for maximum 8-stream transmission of the terminal 8×8 The problem that the codebook signaling overhead of the maximum 8-stream transmission of the terminal is larger directly indicated by the first information is avoided, and the signaling overhead of the first information can be saved.
By way of example only, and not by way of limitation,for example->
In the embodiment of the application, the transmission precoding matrix of the terminal can be determined by indicating the first TPMI and then superposing the first parameter, so that the signaling overhead is saved.
In one embodiment of the present application, the transmission precoding matrix constructed based on the first parameter and the first TPMI satisfies that a correlation between different columns is 0.
To be used forFor example, where a×b+c×d=0.
In one embodiment of the present application, the transmission precoding matrix constructed based on the first parameter and the first TPMI supports a fully coherent codebook, or a partially coherent codebook, or a non-coherent codebook.
For example, if the terminal is fully coherent, it is not only necessary to indicate to the 8T Full-pixel terminal the codebook of Full-pixel, i.e. the non-0 codebook, none of a, b, c, d can be 0:
the 8T Full-pixel terminal can also be indicated with a Partial-coherent codebook, i.e. a codebook with a diagonal matrix of 0, b=c=0:
the 8T Full-pixel terminal can also be indicated with a Non-coherent codebook, i.e. a codebook with a diagonal matrix of 1, i.e. a=d=1, b=c=0:
wherein,
in an embodiment of the present application, a transmission precoding matrix constructed based on the first parameter and the first TPMI supports the terminal to perform uplink transmission by using a part of antennas.
For example, when only 1 antenna group transmission is selected, a=1, b=c=d=0:
in one embodiment of the present application, the antenna groups of the terminal are 2 groups, and the first parameter is a two-dimensional matrix, and/or real number, and/or imaginary number.
Optionally, the first parameter includes:or->
In one embodiment, the codebook corresponding to the maximum 4-stream transmission of the first TPMI is W 0 The first parameter is used for a transmission precoding matrix of a terminal constructed with the first TPMI to be W 8×8 。
When the first parameter is a matrix:
optionally, the first parameter is a matrixWhen the transmission precoding matrix of the terminal is
Optionally, the first parameter is a matrixWhen the transmission precoding matrix of the terminal is
Optionally, the first parameter is a matrixWhen the transmission precoding matrix of the terminal is
Optionally, the first parameter is a matrixWhen the transmission precoding matrix of the terminal is
When the first parameter is real:
optionally, if the first parameter=0, the transmission precoding matrix of the second antenna group of the terminal is 0×w 0 =0, i.e. the transmission precoding matrix of the terminal isEquivalent to the first parameter being the matrix +.>Is effective in (1).
Optionally, if the first parameter=1, the transmission precoding matrix of the second antenna group of the terminal is 1×w 0 ＝W 0 I.e. the transmission precoding matrix of the terminal isEquivalent to the first parameter being the matrix +.>Is effective in (1).
Optionally, the first parameter= -1, the negative sign indicates that the transmission precoding matrix of the terminal is full-coherent, and the transmission precoding matrix of the second antenna group of the terminal is [ W ] 0 -W 0 ]I.e. the transmission precoding matrix of the terminal isEquivalent to the first parameter being the matrix +.>Is effective in (1).
In one embodiment, when the first parameter is imaginary:
optionally, the first parameter= -j, the negative sign indicates that the transmission precoding matrix of the terminal is full-coherent, and the transmission precoding matrix of the second antenna group of the terminal is [ W ] 0 -jW 0 ]I.e. the transmission precoding matrix of the terminal isEquivalent to the first parameter being the matrix +.>Is effective in (1).
In one embodiment of the present application, 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 application, the first TPMI is configured to instruct a transmission precoding matrix of a first antenna or a first antenna group of the terminal, and the first parameter and the first TPMI construct a second transmission precoding matrix, where the second transmission precoding matrix is configured to instruct a transmission precoding matrix of another antenna or another antenna group of the terminal.
In one embodiment of the present application, the antenna groups of the terminal are 4 groups, and the first parameter is a four-dimensional matrix, and/or real numbers, and/or imaginary numbers.
Optionally, the first parameter includes: or->
In one embodiment, when the first parameter is a matrix:
optionally, the first parameter is a matrixWhen the transmission precoding matrix of the terminal is
Optionally, the first parameter is a matrixWhen the transmission precoding matrix of the terminal is
Optionally, the first parameter is a matrixWhen the transmission precoding matrix of the terminal is
Optionally, the first parameter is a matrixWhen the transmission precoding matrix of the terminal is
Optionally, the first parameter is a matrixWhen the transmission precoding matrix of the terminal is
Optionally, the first parameter is a matrixWhen the transmission precoding matrix of the terminal is
Optionally, the first parameter is a matrixWhen the transmission precoding matrix of the terminal is
Optionally, the first parameter is a matrixWhen the transmission precoding matrix of the terminal is
In one embodiment, when the first parameter is real or imaginary:
optionally, if the first parameter= {0, 0}, the transmission precoding matrix of the second, third and fourth antenna groups of the terminal is 0 xw 0 =0, i.e. the transmission precoding matrix of the terminal isEquivalent to a first parameter being a matrixIs effective in (1).
Optionally, if the first parameter= {1, 0}, the transmission precoding matrix of the second antenna group of the terminal is 1 xw 0 ＝W 0 The transmission precoding matrix of the third and fourth antenna groups is 0 xW 0 =0, i.e. the transmission precoding matrix of the terminal isEquivalent to the first parameter being the matrix +.>Is effective in (1).
Optionally, if the first parameter= {1, 0}, the transmission precoding matrix of the second antenna group and the third antenna group of the terminal is 1×w 0 ＝W 0 The transmission precoding matrix of the fourth antenna group is 0 xW 0 =0, i.e. the transmission precoding matrix of the terminal isEquivalent to the first parameter being the matrix +.>Is effective in (1).
Optionally, if the first parameter= {1, 1}, the transmission precoding matrix of the second, third and fourth antenna groups of the terminal is 1 xw 0 ＝W 0 I.e. the transmission precoding matrix of the terminal isEquivalent to the first parameter being the matrix +.>Is effective in (1).
Optionally, the first parameter = { -1, -1}, thenThe transmission precoding matrix of the second and fourth antenna groups of the terminal is W 0 -W 0 ]The transmission precoding matrix of the third antenna group of the terminal is [ W ] 0 W 0 ]I.e. the transmission precoding matrix of the terminal isEquivalent to the first parameter being the matrix +.>Is effective in (1).
Optionally, if the first parameter = { -j,1, -j }, the transmission precoding matrix of the second and fourth antenna groups of the terminal is [ jW ] 0 -jW 0 ]The transmission precoding matrix of the third antenna group of the terminal is [ W ] 0 W 0 ]I.e. the transmission precoding matrix of the terminal isEquivalent to the first parameter being the matrix +.>Is effective in (1).
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 ]The transmission precoding matrix of the fourth antenna group of the terminal is [ W ] 0 -W 0 -W 0 W 0 ]I.e. the transmission precoding matrix of the terminal isEquivalent to the first parameter being the matrix +.>Is effective in (1).
Optionally, the first parameter = { -1, -j, -j }, 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 ]The transmission precoding matrix of the fourth antenna group of the terminal is [ jW ] 0 -jW 0 -jW 0 jW 0 ]I.e. the transmission precoding matrix of the terminal is Equivalent to the first parameter being the matrix +.>Is effective in (1).
In one embodiment of the present application, 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 application, the first information includes DCI and/or a media access Control (Medium Access Control, MAC) Control Element (CE).
Optionally, the DCI and/or the MAC CE adds 2 bits of first indication information or 3 bits of second indication information, so as to implement a codebook indicating maximum 8-stream transmission with minimum DCI indication overhead, as shown in tables 1-4.
Table 1: a first parameter.
Table 2: a first parameter.
Table 3: a first parameter.
Table 4: a first parameter.
In this embodiment of the present application, a transmission precoding matrix of an indication terminal is implemented through a first parameter and the first TPMI, for example, implementing network support for an 8T terminal, and enabling the terminal to support maximum 8-stream uplink transmission, thereby improving uplink transmission performance of a system.
Referring to fig. 2, an embodiment of the present application provides an information indication method, which is applied to a terminal, and includes the specific steps: step 201.
Step 201: receiving first information, wherein the first information indicates second information and/or first parameters, and the second information is used for indicating a first TPMI of a terminal; the first parameter is used for constructing a transmission precoding matrix of the terminal with the first TPMI.
For example, the first information is used to indicate the second information, and the first TPMI may construct a transmission precoding matrix of the terminal with a first parameter, where the first parameter may be a default parameter or a parameter indicated previously.
For another example, the first information is used to indicate a first parameter, and the first parameter may construct a transmission precoding matrix of the terminal with a first TPMI, where the first TPMI may be a default TPMI or a TPMI indicated previously.
For another example, the first information is used to indicate a first parameter and second information, where the first parameter may construct a transmission precoding matrix of the terminal with the first TPMI.
In one embodiment, step 202 may also be included in fig. 2.
Step 202: and constructing a transmission precoding matrix of the terminal according to the first TPMI and the first parameter.
In one embodiment of the present application, the first parameter and the first TPMI construct a transmission precoding matrix of the terminal through a multiplication operation.
Optionally, the transmission precoding matrix of the terminal includes a 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.
In one embodiment of the present application, the transmission precoding matrix constructed based on the first parameter and the first TPMI satisfies that a correlation between different columns is 0.
In one embodiment of the present application, the transmission precoding matrix constructed based on the first parameter and the first TPMI supports a fully coherent codebook, or a partially coherent codebook, or a non-coherent codebook.
In an embodiment of the present application, a transmission precoding matrix constructed based on the first parameter and the first TPMI supports the terminal to perform uplink transmission by using a part of antennas.
In one embodiment of the present application, the antenna groups of the terminal are 2 groups, and the first parameter is a two-dimensional matrix, and/or real number, and/or imaginary number.
Optionally, the first parameter includes:or->
In one embodiment of the present application, 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 application, the first TPMI is configured to instruct a transmission precoding matrix of a first antenna or a first antenna group of the terminal, and the first parameter and the first TPMI construct a second transmission precoding matrix, where the second transmission precoding matrix is configured to instruct a transmission precoding matrix of another antenna or another antenna group of the terminal.
In one embodiment of the present application, the antenna groups of the terminal are 4 groups, and the first parameter is a four-dimensional matrix, and/or real numbers, and/or imaginary numbers.
Optionally, the first parameter includes: or->
In one embodiment of the present application, 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 application, the first information includes DCI and/or MAC CE.
In the embodiment of the application, the network equipment sends first information to the terminal; the first information is used for indicating second information and/or first parameters, and the second information is used for indicating a first TPMI of the terminal; the first parameter and the first TPMI are used for constructing 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, the first parameter is multiplied by the first TPMI to construct an 8×8 transmission precoding matrix of the terminal, so that a codebook for indicating the terminal to perform 8-stream transmission is realized, the terminal can support the maximum 8-stream uplink transmission, and the uplink transmission performance of the system is improved.
Referring to fig. 3, an embodiment of the present application provides an information indicating apparatus, applied to a network device, where the apparatus 300 includes:
a transmitting module 301, configured to transmit first information;
the first information is used for indicating second information and/or first parameters, and the second information is used for indicating a first TPMI of the terminal; the first parameter is used for constructing a transmission precoding matrix of the terminal with the first TPMI.
In one embodiment of the present application, the first parameter and the first TPMI construct a transmission precoding matrix of the terminal through a multiplication operation.
In one embodiment of the present application, the first TPMI is configured to instruct a transmission precoding matrix of a first antenna or a first antenna group of the terminal, and the first parameter and the first TPMI construct a second transmission precoding matrix, where the second transmission precoding matrix is configured to instruct a transmission precoding matrix of another antenna or another antenna group of the terminal.
In one embodiment of the present application, the transmission precoding matrix constructed based on the first parameter and the first TPMI satisfies that a correlation between different columns is 0.
In one embodiment of the present application, the transmission precoding matrix constructed based on the first parameter and the first TPMI supports a fully coherent codebook, or a partially coherent codebook, or a non-coherent codebook.
In an embodiment of the present application, a transmission precoding matrix constructed based on the first parameter and the first TPMI supports the terminal to perform uplink transmission by using a part of antennas.
In one embodiment of the present application, the antenna groups of the terminal are 2 groups, and the first parameter is a two-dimensional matrix, and/or real number, and/or imaginary number.
Optionally, the first parameter includes:or->
In one embodiment of the present application, 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 application, the antenna groups of the terminal are 4 groups, and the first parameter is a four-dimensional matrix, and/or real numbers, and/or imaginary numbers.
Optionally, the first parameter includes: or->
In one embodiment of the present application, 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 application, the first information includes DCI and/or MAC CE.
The device provided in this embodiment of the present application can implement each process implemented in the embodiment of the manner shown in fig. 1, and achieve the same technical effects, so that repetition is avoided, and details are not repeated here.
Referring to fig. 4, an embodiment of the present application provides an information indicating apparatus, applied to a terminal, where the apparatus 400 includes:
a receiving module 401, configured to receive first information, where the first information indicates second information and/or a first parameter, and the second information is used to indicate a first TPMI of a terminal; the first parameter is used for constructing a transmission precoding matrix of the terminal with the first TPMI.
In one embodiment of the present application, the apparatus 400 further comprises:
and a processing module 402, configured to construct a transmission precoding matrix of the terminal according to the first TPMI and the first parameter.
In one embodiment of the present application, the first parameter and the first TPMI construct a transmission precoding matrix of the terminal through a multiplication operation.
In one embodiment of the present application, the first TPMI is configured to instruct a transmission precoding matrix of a first antenna or a first antenna group of the terminal, and the first parameter and the first TPMI construct a second transmission precoding matrix, where the second transmission precoding matrix is configured to instruct a transmission precoding matrix of another antenna or another antenna group of the terminal.
In one embodiment of the present application, the transmission precoding matrix constructed based on the first parameter and the first TPMI satisfies that a correlation between different columns is 0.
In one embodiment of the present application, the transmission precoding matrix constructed based on the first parameter and the first TPMI supports a fully coherent codebook, or a partially coherent codebook, or a non-coherent codebook.
In an embodiment of the present application, a transmission precoding matrix constructed based on the first parameter and the first TPMI supports the terminal to perform uplink transmission by using a part of antennas.
In one embodiment of the present application, the antenna groups of the terminal are 2 groups, and the first parameter is a two-dimensional matrix, and/or real number, and/or imaginary number.
Optionally, the first parameter includes:or->
In one embodiment of the present application, 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 application, the antenna groups of the terminal are 4 groups, and the first parameter is a four-dimensional matrix, and/or real numbers, and/or imaginary numbers.
Optionally, the first parameter includes: or->
In one embodiment of the present application, 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 application, the first information includes DCI and/or MAC CE.
The device provided in this embodiment of the present application can implement each process implemented in the embodiment of the manner shown in fig. 2, and achieve the same technical effects, so that repetition is avoided, and details are not repeated here.
As shown in fig. 5, the embodiment of the present application further provides a communication device 500, including a processor 501, a memory 502, and a program or an instruction stored in the memory 502 and capable of running on the processor 501, where the program or the instruction is executed by the processor 501 to implement each process of the embodiment shown in fig. 1 or fig. 2 and achieve the same technical effect. In order to avoid repetition, a description thereof is omitted.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the processes of the embodiment shown in fig. 1 or fig. 2 are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.
Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware, or may be embodied in software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, a removable disk, a read-only optical disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may be carried in a core network interface device. The processor and the storage medium may reside as discrete components in a core network interface device.
Those of skill in the art will appreciate that in one or more of the examples described above, the functions described herein may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, these functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
The foregoing embodiments have been provided for the purpose of illustrating the technical solution and advantageous effects of the present application in further detail, and it should be understood that the foregoing embodiments are merely illustrative of the present application and are not intended to limit the scope of the present application, and any modifications, equivalents, improvements, etc. made on the basis of the technical solution of the present application should be included in the scope of the present application.
Those skilled in the art will appreciate that the present embodiments may be provided as a manner, system, or computer program product. Accordingly, the present embodiments may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to encompass such modifications and variations.

Claims (22)

1. An information indication method applied to a network device, comprising:
transmitting first information;
the first information is used for indicating second information and/or first parameters, and the second information is used for indicating 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.
2. The method of claim 1, wherein the first parameter and the first TPMI construct a transmission precoding matrix of the terminal through a multiplication operation.
3. The method of claim 1, wherein the first TPMI is configured to instruct a transmission precoding matrix of a first antenna or a first antenna group of the terminal, and the first parameter and the first TPMI construct a second transmission precoding matrix, where the second transmission precoding matrix is configured to instruct a transmission precoding matrix of another antenna or another antenna group of the terminal.
4. The method of claim 1 wherein a transmission precoding matrix constructed based on the first parameter and the first TPMI satisfies a correlation of 0 between different columns.
5. The method of claim 1, wherein a transmission precoding matrix constructed based on the first parameter and the first TPMI supports a fully coherent codebook, or a partially coherent codebook, or a non-coherent codebook.
6. The method of claim 1, wherein a transmission precoding matrix constructed based on the first parameter and the first TPMI supports the terminal for uplink transmission using a portion of antennas.
7. The method according to claim 1, wherein the first parameter is a matrix, and/or real numbers, and/or imaginary numbers, the matrix being a two-dimensional matrix or a four-dimensional matrix.
8. The method of claim 7, wherein the first parameter comprises:or->
9. The method of claim 7, wherein the first parameter comprises:
or alternatively
10. An information indication method applied to a terminal is characterized by comprising the following steps:
receiving first information, wherein the first information indicates second information and/or first parameters;
the second information is used for indicating a first TPMI of the terminal; the first parameter is used for constructing a transmission precoding matrix of the terminal with the first TPMI.
11. The method of claim 10 wherein the first parameter and the first TPMI construct a transmission precoding matrix for the terminal by a multiplication operation.
12. The method of claim 10, wherein the first TPMI is used to indicate a transmission precoding matrix for a first antenna or a first antenna group of the terminal, and wherein the first parameter and the first TPMI construct a second transmission precoding matrix, and wherein the second transmission precoding matrix is used to indicate a transmission precoding matrix for other antennas or other antenna groups of the terminal.
13. The method of claim 10 wherein a transmission precoding matrix constructed based on the first parameter and the first TPMI satisfies a correlation of 0 between different columns.
14. The method of claim 10, wherein a transmission precoding matrix constructed based on the first parameter and the first TPMI supports a fully coherent codebook, or a partially coherent codebook, or a non-coherent codebook.
15. The method of claim 10 wherein a transmission precoding matrix constructed based on the first parameter and the first TPMI supports the terminal for uplink transmission using a portion of antennas.
16. The method according to claim 10, wherein the first parameter is a matrix, and/or real numbers, and/or imaginary numbers, the matrix being a two-dimensional matrix or a four-dimensional matrix.
17. The method of claim 16, wherein the first parameter comprises:or->
18. The method of claim 17, wherein the step of determining the position of the probe is performed,
the first parameter includes: or->
19. An information indicating apparatus applied to a network device, comprising:
the sending module is used for sending the first information;
the first information is used for indicating second information and/or first parameters, and the second information is used for indicating a first TPMI of the terminal; the first parameter is used for constructing a transmission precoding matrix of the terminal with the first TPMI.
20. An information indicating apparatus applied to a terminal, comprising:
the terminal comprises a receiving module, a receiving module and a transmitting module, wherein the receiving module is used for receiving first information, the first information indicates second information and/or first parameters, the second information is used for indicating a first TPMI of the terminal, and the first parameters are used for constructing a transmission precoding matrix of the terminal with the first TPMI.
21. A communication device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which program or instruction when executed by the processor implements the steps of the method of any of claims 1 to 18.
22. A readable storage medium, characterized in that it has stored thereon a program or instructions which, when executed by a processor, implement the steps of the method according to any of claims 1 to 18.
CN202211185364.2A 2022-09-27 2022-09-27 Information indication method, device, equipment and readable storage medium Pending CN117792445A (en)

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PCT/CN2023/121940 WO2024067677A1 (en) 2022-09-27 2023-09-27 Information indication method and apparatus, device, and readable storage medium

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KR101832766B1 (en) * 2010-07-12 2018-02-27 엘지전자 주식회사 Method and device for transmitting/receiving a signal by using a code book in a wireless communication system
CN113965231A (en) * 2017-03-24 2022-01-21 华为技术有限公司 Information transmission method and equipment
CN113824481B (en) * 2020-06-19 2023-03-28 华为技术有限公司 Uplink transmission method, device, chip system and storage medium
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