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:
Mar. 09, 2020
Applicant:
Cisco Technology, Inc., San Jose, CA (US);
Inventors:
Malcolm M. Smith, Richardson, TX (US);
Xiaoqing Zhu, Austin, TX (US);
Jerome Henry, Pittsboro, NC (US);
Assignee:
Cisco Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 64/00 (2009.01); H04W 24/10 (2009.01); H04B 7/06 (2006.01); H04B 7/08 (2006.01); G01S 5/02 (2010.01);
U.S. Cl.
CPC ...
H04W 64/003 (2013.01); G01S 5/0284 (2013.01); H04B 7/0626 (2013.01); H04B 7/086 (2013.01); H04W 24/10 (2013.01);
Abstract
Techniques for determining a range between a wireless station (STA) and a wireless access point (AP) using channel state information are described. An AP determines channel state information corresponding to an STA. The AP determines, based on the channel state information, one or more fine timing measurement (FTM) parameters. A plurality of FTM messages are transmitted between the AP and the STA, based on the one or more FTM parameters. The STA is configured to determine an estimated range to the AP based on the plurality of FTM messages.