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:
Sep. 25, 2024
Systems and methods for channel state information acquisition using a joint space-frequency subspace
Huawei Technologies Co., Ltd., Shenzhen, CN;
Hamidreza Farmanbar, Ottawa, CA;
Mohammadhadi Baligh, Ottawa, CA;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
Aspects of the present disclosure are directed to channel state information (CSI) acquisition and feedback where the UE estimates the channel based on a received reference signal (such as a channel state information reference signal (CSI-RS)) and calculates an appropriate precoder matrix according to the measured channel. The UE can then send a compressed version of the precoder matrix based on a set of joint space-frequency subspace vectors to the base station that can be used by the base station in order to recover the precoder matrix from the compressed version of the precoder matrix.