	US 11,943,017 B2
	Precoding method and apparatus, and information transmission method and apparatus
Xin Xia, Chengdu (CN); Zhenbing Zhang, Chengdu (CN); Yun Liu, Chengdu (CN); and Lu Guan, Chengdu (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Jun. 24, 2021, as Appl. No. 17/357,392.
Application 17/357,392 is a continuation of application No. PCT/CN2019/128474, filed on Dec. 25, 2019.
Claims priority of application No. 201811603975.8 (CN), filed on Dec. 26, 2018.
Prior Publication US 2021/0328632 A1, Oct. 21, 2021
Int. Cl. H04W 4/00 (2018.01); H04B 7/0456 (2017.01); H04W 8/24 (2009.01); H04W 72/20 (2023.01)

CPC H04B 7/0456 (2013.01) [H04W 8/24 (2013.01); H04W 72/20 (2023.01)]

20 Claims

1. A method, comprising:

decomposing a channel matrix into a product of a matrix Q, a matrix R, and a matrix P^H, wherein the matrix P^His a conjugate transpose matrix of a matrix P, both the matrix Q and the matrix P are unitary matrices, and the matrix R is an upper triangular matrix, and wherein a ratio of at least two diagonal elements of the matrix R is a target ratio, and the target ratio is determined based on a code rate; and

precoding to-be-sent data based on the matrix P, to generate precoded to-be-sent data.