CN-122001411-A - Information feedback method, device and storage medium

Abstract

The application provides an information feedback method, information feedback equipment and a storage medium. The information feedback method applied to the first communication equipment comprises the steps of determining a feedback codeword according to a measured channel measurement result, determining channel quality information according to the feedback codeword and first information, and sending the feedback codeword and the channel quality information to the second communication equipment.

Inventors

• YU HONGKANG
• CHEN YIJIAN
• ZHANG SHUJUAN
• LU GUANGYAN

Assignees

• 中兴通讯股份有限公司

Dates

Publication Date

20260508

Application Date

20241107

Claims (14)

1. 1. An information feedback method, applied to a first communication device, comprising: determining a feedback codeword according to the channel measurement result obtained by measurement; Determining channel quality information according to the feedback codeword and the first information; and transmitting the feedback code word and the channel quality information to a second communication device.
2. 2. The method of claim 1, wherein in determining the channel quality information, it is assumed that a precoding vector employed by the second communication device is jointly determined by the feedback codeword and the first information.
3. 3. The method of claim 1, wherein the determining the feedback codeword from the measured channel measurements comprises: measuring the received pilot signal to obtain a channel measurement result; and determining a feedback codeword according to the channel measurement result.
4. 4. The method of claim 3, wherein the feedback codeword corresponds to all pilot signals or wherein the feedback codeword associated with each of the pilot signals is the same.
5. 5. The method of claim 1, wherein the feedback codeword is equivalently a first matrix, wherein the number of rows of the first matrix is a first value, and the number of columns of the first matrix is a second value, wherein the first value is less than or equal to the number of receiving antenna ports on which pilot signals are measured by the first communication device, and wherein the second value is greater than or equal to 1.
6. 6. The method of claim 5, wherein the first value is determined by one of feeding back to the second communication device by the first communication device, negotiating in advance by the first communication device and the second communication device, and configuring the first communication device with the second communication device.
7. 7. The method of claim 5, wherein the second value is determined by one of determining a number of frequency domain units occupied by the pilot signal, determining by the first communication device, and configuring by the second communication device to the first communication device.
8. 8. The method of claim 2, wherein the first information is equivalent to a set of vectors, wherein the precoding vector is a linear combination of the set of vectors, and wherein the feedback codeword is a combination coefficient.
9. 9. The method according to claim 1, characterized in that it comprises: and feeding back a set of vectors equivalent to the first information to the second communication device.
10. 10. The method according to claim 8 or 9, characterized in that the method further comprises: and determining a group of vectors equivalent to the first information according to the channel measurement result.
11. 11. An information feedback method, applied to a second communication device, comprising: Receiving a feedback codeword and channel quality information sent by a first communication device; The channel quality information is determined by the first communication device according to a feedback code word and first information, and the feedback code word is determined by the first communication device according to a channel measurement result obtained through measurement.
12. 12. The method of claim 11, wherein in determining the channel quality information, it is assumed that a precoding vector employed by the second communication device is jointly determined by the feedback codeword and the first information.
13. 13. A communication device comprising a memory, and one or more processors; the memory is configured to store one or more programs; the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method of any of claims 1-10 or 11-12.
14. 14. A storage medium storing a computer program which, when executed by a processor, implements the method of any one of the preceding claims 1-10 or 11-12.

Description

Information feedback method, device and storage medium Technical Field The present application relates to the field of communications technologies, and in particular, to an information feedback method, an information feedback device, and a storage medium. Background Distributed multiple-input multiple-output (MIMO) systems can provide more uniform and stable quality of service than centralized MIMO systems. However, in order to guarantee performance gain, the precoding vector employed by the distributed transmitting node is typically indicated by the receiving node through feedback information. As the number of distributed transmitting nodes increases, feedback overhead increases exponentially. Therefore, how to reduce the information feedback overhead for determining the precoding vector of the transmitting node is a problem to be solved. Disclosure of Invention In view of this, embodiments of the present application provide an information feedback method, apparatus, and storage medium, which effectively reduce information feedback overhead for determining a precoding vector. The embodiment of the application provides an information feedback method, which is applied to first communication equipment and comprises the following steps: determining a feedback codeword according to the channel measurement result obtained by measurement; Determining channel quality information according to the feedback codeword and the first information; and transmitting the feedback code word and the channel quality information to a second communication device. The embodiment of the application provides an information feedback method which is applied to second communication equipment and comprises the following steps: Receiving a feedback codeword and channel quality information sent by a first communication device; The channel quality information is determined by the first communication device according to a feedback code word and first information, and the feedback code word is determined by the first communication device according to a channel measurement result obtained through measurement. An embodiment of the present application provides an information feedback device, which is applied to a first communication device, including: The first determining module is configured to determine a feedback codeword according to the measured channel measurement result; a second determining module configured to determine channel quality information according to the feedback codeword and the first information; And the sending module is configured to send the feedback code word and the channel quality information to the second communication equipment. An embodiment of the present application provides an information feedback device, which is applied to a second communication device, including: The receiving module is configured to receive the feedback code word and the channel quality information sent by the first communication equipment; The channel quality information is determined by the first communication device according to a feedback code word and first information, and the feedback code word is determined by the first communication device according to a channel measurement result obtained through measurement. The embodiment of the application provides communication equipment, which comprises a memory and one or more processors; the memory is configured to store one or more programs; The one or more programs, when executed by the one or more processors, cause the one or more processors to implement the methods of any of the embodiments described above. An embodiment of the present application provides a storage medium storing a computer program that, when executed by a processor, implements the method described in any of the above embodiments. Drawings Fig. 1 is a schematic implementation diagram of a communication scenario provided in an embodiment of the present application; fig. 2 is a flowchart of an information feedback method according to an embodiment of the present application; FIG. 3 is a flowchart of another information feedback method according to an embodiment of the present application; Fig. 4 is a block diagram of an information feedback device according to an embodiment of the present application; FIG. 5 is a block diagram of another information feedback device according to an embodiment of the present application; Fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application. Detailed Description Embodiments of the present application will be described below with reference to the accompanying drawings. The application is described below in connection with the accompanying drawings of embodiments, which are given by way of illustration only and not by way of limitation. In a wireless communication system, a transmitting end and a receiving end are generally configured with a plurality of antennas respectively to form a MIMO system, and the transmission rate i