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:
Nov. 11, 2025
Filed:
Nov. 18, 2021
Qualcomm Incorporated, San Diego, CA (US);
Abdelrahman Mohamed Ahmed Mohamed Ibrahim, San Diego, CA (US);
Juergen Cezanne, Ocean Township, NJ (US);
Renqiu Wang, San Diego, CA (US);
Danlu Zhang, San Diego, CA (US);
Naga Bhushan, San Diego, CA (US);
Pinar Sen, San Diego, CA (US);
Seyong Park, San Diego, CA (US);
Yu Zhang, San Diego, CA (US);
Muhammad Sayed Khairy Abdelghaffar, San Jose, CA (US);
Krishna Kiran Mukkavilli, San Diego, CA (US);
Hwan Joon Kwon, San Diego, CA (US);
Tingfang Ji, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Methods, systems, and devices for wireless communications are described. A transmitted may use a closed loop precoder for line-of-sight (LOS) multiple-input multiple-output (MIMO) communications that uses information such as distance feedback or LOS MIMO channel state feedback. A closed loop precoder may be associated with less overhead than a precoder based on full channel knowledge, such as an SVD precoder. A receiver may estimate a channel based on channel state information reference signals transmitted by the transmitter and calculate a spectral efficiency for one or more precoders of a set of precoders associated with the channel for a LOS MIMO mode. The receiver may send feedback to the transmitter that indicates a selected precoder of the set of LOS MIMO precoders based on the calculated spectral efficiencies. The transmitter may precode messages using the reported closed loop precoder.