Invention Grant
- Patent Title: Wideband angle-of-arrival location determination using bandwidth partitioning
-
Application No.: US14558205Application Date: 2014-12-02
-
Publication No.: US09706514B2Publication Date: 2017-07-11
- Inventor: Matthew A. Silverman , Paul J. Stager , Brian D. Hart
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Edell, Shapiro & Finnan, LLC
- Main IPC: H04W24/00
- IPC: H04W24/00 ; H04W64/00 ; G01S5/02 ; G01S5/04 ; H04W84/12

Abstract:
Techniques are presented herein for improving location determination of a wireless device in environments where there can be multipath issues. A wireless device having a plurality of antennas receives a wireless transmission from a target device whose location is to be determined. Channel state information data is generated based on reception of the transmission at the plurality of antenna. The channel state information data is separated or partitioned into subcarrier group specific data for each of a plurality of groups of subcarriers within a bandwidth of the received transmission. Location probability data is computed for each of the plurality of groups of subcarriers from the subcarrier group specific data for respective ones of the plurality of groups of subcarriers. The location probability data for the plurality of groups of subcarriers is combined to produce aggregate location probability data, from which a location of the target device is determined.
Public/Granted literature
- US20160157201A1 Wideband Angle-Of-Arrival Location Determination Using Bandwidth Partitioning Public/Granted day:2016-06-02
Information query