Communication method, apparatus, storage medium, and chip system

By having the terminal device actively send new matrix or codeword indexes, the network device updates the pilot pattern, thus solving the problems of pilot overhead and channel estimation accuracy in ultra-large-scale MIMO, achieving a reduction in pilot overhead and an improvement in channel estimation accuracy.

CN121750184BActive Publication Date: 2026-06-26HONOR DEVICE CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HONOR DEVICE CO LTD
Filing Date
2026-02-27
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In ultra-large-scale MIMO scenarios, as the number of antenna ports increases, the reference signal overhead rises sharply, making it more difficult to estimate channel state information. Existing technologies struggle to reduce pilot overhead while maintaining channel estimation accuracy.

Method used

When the downlink communication link changes, the terminal device actively sends a new matrix or its corresponding codeword index to the network device. The network device updates the pilot pattern based on this information, and flexibly adjusts the pilot deployment by combining the preset codebook and Hamming distance. The terminal device optimizes the pilot configuration through model training and sparse sampling.

Benefits of technology

While reducing pilot overhead, it improves the accuracy and flexibility of channel estimation, reduces invalid feedback and power consumption of terminal equipment, and enhances the applicability and resource utilization efficiency of the communication system.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121750184B_ABST
    Figure CN121750184B_ABST
Patent Text Reader

Abstract

The communication method, device, storage medium and chip system provided by the embodiments of the present application relate to the technical field of communication. In the method, in the case that the downlink communication link between the network device and the terminal device changes, the terminal device can send a first message to the network device, the first message can include a first matrix or a code word index corresponding to the first matrix, the first matrix is used to indicate whether each subcarrier carries a reference signal, and the code word index is used to indicate a code word in a preset codebook that matches the first matrix. The terminal device can receive a second message from the network device, and the second message is used to instruct the network device to set a pilot pattern using the first matrix, so that the pilot overhead can be reduced while ensuring the accuracy of channel estimation.
Need to check novelty before this filing date? Find Prior Art