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:
Jan. 10, 2017

Filed:

Dec. 18, 2012
Applicant:

Viavi Solutions Uk Limited, Berkshire, GB;

Inventors:

Christopher Murphy, Bath, GB;

Michael Joseph Flanagan, Chester, NJ (US);

Peter Kenington, Chepstow, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); H04W 4/02 (2009.01); H04W 64/00 (2009.01);
U.S. Cl.
CPC ...
H04W 4/025 (2013.01); H04W 64/00 (2013.01);
Abstract

A cellular wireless communications system and method of generating reference signatures for use in geolocation are provided. The cellular wireless communications system identifies a sub-area within the coverage area of a cellular wireless communications system, the sub-area having a density of radio frequency measurements that is below a threshold value. A user of a subscriber mobile communication unit is influenced to enter the sub-area, the subscriber mobile communication unit being a subscriber to the cellular wireless communications system. The cellular wireless communications system obtains radio frequency measurements from the subscriber mobile communication unit in the sub-area, and generates reference signatures and/or location estimates from the radio frequency measurements. The reference signatures may be used to geolocate connections made by other mobile communication units within the sub-areas.


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