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. 28, 2012

Filed:

Nov. 04, 2009
Applicants:

Ozgur Ekicl, Kanata, CA;

Jean-philippe Paul Cormier, Kanata, CA;

Dimitrios Christos Prodanos, Kanata, CA;

Inventors:
Assignee:

Research In Motion Limited, Waterloo, Ontario, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q 7/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

A While a mobile device operates for communications in a WWAN, its WLAN transceiver portion may be maintained in a low power state. During the WWAN operation, the mobile device performs one or more scanning operations with use of a WWAN transceiver portion for identifying a current set of cell site identifications corresponding to a currently-serving base station of the WWAN and one or more neighboring base stations. The mobile device compares cell site identifications of the current set with those in a stored set, and identifies if the, number or percentage of matching cell site identifications of the current and stored sets meets or exceeds a predetermined threshold. If the predetermined threshold is met or exceeded, the mobile device exits the WLAN transceiver portion from the low power state and enables its operation for communications.


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