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.

Date of Patent:
Aug. 30, 2016

Filed:

Nov. 27, 2013
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Amir Abbas Emadzadeh, Santa Clara, CA (US);

Sai Pradeep Venkatraman, Santa Clara, CA (US);

Weihua Gao, San Jose, CA (US);

Assignee:

QUALCOMM INCORPORATED, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 28/18 (2009.01); G01S 5/02 (2010.01); H04W 24/08 (2009.01); H04W 48/20 (2009.01); H04W 64/00 (2009.01); H04W 84/18 (2009.01); G01S 5/14 (2006.01);
U.S. Cl.
CPC ...
H04W 28/18 (2013.01); G01S 5/0205 (2013.01); G01S 5/0242 (2013.01); H04W 24/08 (2013.01); H04W 48/20 (2013.01); H04W 64/00 (2013.01); G01S 5/14 (2013.01); H04W 84/18 (2013.01);
Abstract

The present disclosure describes methods, systems, computer-readable media, and apparatuses for evaluating the suitability of AP signaling for RTT-based location calculation. Various evaluation methods are disclosed to enable the signaling to be tested for consistency and reliability. An AP may be analyzed by a mobile device or other communications mechanism to determine whether the AP is suitable for RTT-based location signaling. A mobile device receives multiple signals from an evaluated AP at various locations in the indoor area, and derives RTT data from the signals. The RTT data is analyzed to determine whether RTT data from the AP should be used by mobile devices in the process of calculating their location.


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