Codebook transmission method, apparatus and storage medium

By receiving and sending configuration messages from network devices, the beamforming codebooks of the terminal and the RIS are determined and transmitted, solving the problem in the prior art that the RIS beamforming codebook cannot be fed back. This enables cooperative beamforming between the base station and the RIS, improving the signal quality of the wireless communication system.

CN117394890BActive Publication Date: 2026-07-07DATANG MOBILE COMM EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DATANG MOBILE COMM EQUIP CO LTD
Filing Date
2022-07-05
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing beamforming technologies based on codebook feedback only support feedback of the base station's beamforming codebook, and cannot feed back the beamforming codebook of the RIS, which prevents the base station from using the RIS for enhanced coverage.

Method used

A codebook transmission method is provided, which receives a configuration message sent by a network device, determines the beamforming codebook of the terminal and the RIS based on measurement signals and codebook indications, and sends it to the network device so that the network device can determine its own beamforming codebook and the RIS.

Benefits of technology

Cooperative beamforming of the base station and RIS was achieved, improving the signal quality of the wireless communication system.

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Abstract

Embodiments of the present application provide a codebook transmission method and device and a storage medium. The method is applied to a terminal and includes: receiving a configuration message sent by a network device, the configuration message containing a measurement signal and a codebook indication; determining a first codebook and a second codebook based on the measurement signal and the codebook indication; the first codebook is used to determine a beamforming codebook used by the network device, and the second codebook is used to determine a beamforming codebook used by RIS; and sending the first codebook and the second codebook to the network device. According to the embodiments of the present application, the terminal receives a configuration message sent by a network device, determines a first codebook and a second codebook based on a measurement signal and a codebook indication in the configuration message, and sends the first codebook and the second codebook to the network device. The network device determines a beamforming codebook used by itself and a beamforming codebook used by RIS based on the first codebook and the second codebook, thereby improving signal quality by using an RIS-based wireless communication system.
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