US 12,407,381 B2
Communication method and apparatus
Senbao Guo, Xi'an (CN); Ye Yang, Shanghai (CN); and Xin Meng, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Jan. 14, 2024, as Appl. No. 18/412,571.
Application 18/412,571 is a continuation of application No. PCT/CN2022/112434, filed on Aug. 15, 2022.
Claims priority of application No. 202110981911.7 (CN), filed on Aug. 25, 2021.
Prior Publication US 2024/0162947 A1, May 16, 2024
Int. Cl. H04B 7/04 (2017.01); H04B 7/0456 (2017.01)
CPC H04B 7/0456 (2013.01) 16 Claims
OG exemplary drawing
 
1. A communication method, comprising:
obtaining a first uplink statistical autocorrelation matrix of an uplink channel with a terminal;
determining, based on the first uplink statistical autocorrelation matrix, a first downlink statistical autocorrelation matrix of a downlink channel with the terminal;
obtaining a first precoding matrix indicator (PMI) from the terminal, wherein the first PMI indicates a first weight;
determining a second weight based on the first weight;
determining a third weight based on the first downlink statistical autocorrelation matrix and the second weight, wherein the third weight is different from the second weight;
sending a second PMI to the terminal, wherein the second PMI indicates the second weight; and
sending data to the terminal based on the third weight.