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:
Apr. 10, 2018
Filed:
Nov. 27, 2014
Applicant:
Blackberry Limited, Waterloo, CA;
Inventors:
Jeffrey William Wirtanen, Ottawa, CA;
Muhammad Khaledul Islam, Ottawa, CA;
Yi Hai Zhang, Ottawa, CA;
Assignee:
BlackBerry Limited, Waterloo, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 36/14 (2009.01); H04W 72/04 (2009.01); H04W 48/16 (2009.01); H04W 84/04 (2009.01); H04W 48/04 (2009.01);
U.S. Cl.
CPC ...
H04W 36/14 (2013.01); H04W 48/16 (2013.01); H04W 72/048 (2013.01); H04W 48/04 (2013.01); H04W 84/042 (2013.01);
Abstract
A method performed by a mobile device of selecting a cellular network entails activating a cellular radio transceiver, scanning a most recently used frequency list of radiofrequency channels most recently used by the cellular radio transceiver of the mobile device, scanning a likely frequency list of likely radiofrequency channels available at a plurality of locations where activation of cellular radio transceivers commonly occurs, and selecting the cellular network by identifying one of the radiofrequency channels as a usable channel.