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:
Mar. 01, 2022
Filed:
Jan. 10, 2020
Qualcomm Incorporated, San Diego, CA (US);
Joseph Binamira Soriaga, San Diego, CA (US);
Alexandros Manolakos, San Diego, CA (US);
Sony Akkarakaran, Poway, CA (US);
Naga Bhushan, San Diego, CA (US);
Allen Minh-Triet Tran, Rancho Santa Fe, CA (US);
Charles Edward Wheatley, Del Mar, CA (US);
Tao Luo, San Diego, CA (US);
Tingfang Ji, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Disclosed are techniques for determining a line-of-sight (LOS) path between a transmitter and a wireless device in a wireless communications network. In an aspect, a wireless device receives, from the transmitter, a first reference signal transmitted on a first antenna port and a second reference signal transmitted on a second antenna port, the first reference signal having a first polarization and the second reference signal having a second polarization with known difference (e.g., perpendicular) to the first polarization, compares multi-path channels estimated from reception of the first reference signal and the second reference signal to multi-path channels expected from the first reference signal and the second reference signal when transmitted along the LOS path between the transmitter and the wireless device, and determines which path (if any) of the multi-path channels corresponds to the LOS path between the transmitter and the wireless device.