Invention Grant
- Patent Title: Signaling usage of cyclic shift diversity in transmitting wireless devices
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Application No.: US15346482Application Date: 2016-11-08
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Publication No.: US09918195B2Publication Date: 2018-03-13
- Inventor: Rahul Malik , Carlos Horacio Aldana
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Paradice and Li LLP
- Main IPC: H04W24/00
- IPC: H04W24/00 ; H04W4/02 ; H04B17/27 ; G01S3/72 ; G01S3/74 ; H04B7/06 ; H04L5/00 ; H04L1/00

Abstract:
Aspects of the present disclosure may compensate for cyclic shift delays (CSD) in transmitted signals when estimating angle of arrival information of a wireless signal transmitted by a transmitting device. In some aspects, a receiving device may determine a presence of CSD in the wireless signal, and estimate an angle of arrival of the wireless signal based at least in part on the presence of CSD. For example, the receiving device may determine a first tap of the wireless channel based at least in part on the CSD. The receiving device may then determine a phase difference of the wireless signal between a plurality of antennas of the receiving device based on the first tap of the wireless channel. The receiving device may estimate the angle of arrival of the wireless signal based on the phase difference.
Public/Granted literature
- US20170134900A1 SIGNALING USAGE OF CYCLIC SHIFT DIVERSITY IN TRANSMITTING WIRELESS DEVICES Public/Granted day:2017-05-11
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