METHOD AND DEVICE FOR COMPRESSION FEEDBACK OF CHANNEL CONDITION INFORMATION (CSI)
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- BEIJING XIAOMI MOBILE SOFTWARE CO LTD
- Filing Date
- 2021-12-14
- Publication Date
- 2026-05-27
AI Technical Summary
The multi-antenna nature of massive MIMO systems results in a significant overhead for channel state information (CSI) feedback, with existing methods failing to efficiently and accurately compress and reconstruct CSI, particularly for channels with low spatial correlation and temporal correlation.
A CSI compression feedback method involving a self-information domain transformer and a temporal feature coupling encoder to generate a feature codeword from a temporal CSI image, leveraging a self-information domain transformer and a temporal feature coupling encoder to extract structural and temporal correlation features, reducing resource usage and improving accuracy.
The method effectively reduces channel resource occupation and enhances CSI feedback accuracy by compressing and reconstructing CSI using temporal correlation characteristics.