一种信道质量的检测方法和基站
By acquiring the precoding matrix WPMI and configuration feedback mode from the terminal in the FDD system, the base station can obtain the CQI information of each data stream, solving the problem of inability to allocate power reasonably and improving the channel throughput.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI HUAWEI TECH CO LTD
- Filing Date
- 2021-10-30
- Publication Date
- 2026-07-17
AI Technical Summary
In frequency division duplex (FDD) systems, base stations cannot estimate the channel quality indication (CQI) of each downlink data stream based on the channel sounding reference signal (SRS) sent by the terminal, which leads to the inability to perform reasonable power allocation and affects the overall throughput of the channel.
The base station obtains the precoding matrix WPMI fed back by the terminal, sends a reference signal to the terminal, and receives the channel quality indicator (CQI) and rank indicator (RI) fed back by the terminal. By configuring different feedback modes and weighting matrices, it obtains the CQI information of each data stream for power allocation.
This technology enables the acquisition of CQI information for each data stream in an FDD system, allowing for reasonable power allocation and improving the overall throughput of the channel.
Smart Images
Figure CN116074879B_ABST