The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2026
Filed:
Jun. 07, 2021
Applicant:
Beijing Xiaomi Mobile Software Co., Ltd., Beijing, CN;
Inventors:
Dong Chen, Beijing, CN;
Liangang Chi, Beijing, CN;
Assignee:
BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 41/16 (2022.01); H04B 7/0456 (2017.01); H04B 7/06 (2006.01);
U.S. Cl.
CPC ...
H04B 7/0626 (2013.01); H04B 7/0478 (2013.01); H04B 7/0634 (2013.01);
Abstract
An information feedback method includes: obtaining a channel state information (CSI) matrix; screening, based on self-information of the CSI matrix, elements in the CSI matrix to obtain a sparse CSI matrix; and determining, based on the elements in the sparse CSI matrix, feedback information and sending the feedback information to a base station.