US 12,418,905 B2
Update method and communications apparatus
Hui Wang, Shanghai (CN); Huangping Jin, Shanghai (CN); Shibin Ge, Shanghai (CN); Yiling Yuan, Shanghai (CN); Xiaoyan Bi, Ottawa (CA); and Peng Shang, Shanghai (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Sep. 23, 2022, as Appl. No. 17/934,693.
Application 17/934,693 is a continuation of application No. PCT/CN2020/081137, filed on Mar. 25, 2020.
Prior Publication US 2023/0019630 A1, Jan. 19, 2023
Int. Cl. H04B 7/0456 (2017.01); H04L 5/00 (2006.01); H04W 72/044 (2023.01)
CPC H04B 7/0456 (2013.01) [H04L 5/0092 (2013.01); H04W 72/044 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
generating space domain vector update information, wherein:
the space domain vector update information is configured to be usable to update a first group of space domain vectors to obtain a second group of space domain vectors,
the space domain vector update information is generated based on statistics about space domain characteristics of a downlink channel,
the space domain vector update information comprises a plurality of groups of space domain vector coefficients, and
each group of space domain vector coefficients of the plurality of groups of space domain vector coefficients is configured to be usable to perform weighted combination on the first group of space domain vectors, to obtain one respective space domain vector in the second group of space domain vectors; and
sending the space domain vector update information.