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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.:

US 10757644 B1

PDFFull Text
Date of Patent:
Aug. 25, 2020

Filed:

Feb. 06, 2019

Method and apparatus for multi-sim selection

Applicant:

Blackberry Limited, Waterloo, CA;

Inventors:

José Eduardo Korneluk, Lake Worth, FL (US);

Sandeep Chennakeshu, Austin, TX (US);

Siddharth Saxena, Sunrise, FL (US);

Sergio Javier Berriz, Miami, FL (US);

Assignee:

BlackBerry Limited, Waterloo, CA;

Attorney:

Ridout and Maybee LLP

Primary Examiner:

Phuoc H Doan

Int. Cl.
CPC ...
H04W 48/16 (2009.01); H04W 48/18 (2009.01); H04B 1/3816 (2015.01); H04B 1/3827 (2015.01); H04W 64/00 (2009.01); H04W 48/04 (2009.01); G01S 19/34 (2010.01); H04W 52/02 (2009.01); H04W 88/06 (2009.01); H04W 84/04 (2009.01);
U.S. Cl.
CPC ...
H04W 48/18 (2013.01); G01S 19/34 (2013.01); H04B 1/3816 (2013.01); H04B 1/3827 (2013.01); H04W 48/04 (2013.01); H04W 48/16 (2013.01); H04W 52/0209 (2013.01); H04W 64/00 (2013.01); H04W 84/042 (2013.01); H04W 88/06 (2013.01); Y02D 70/00 (2018.01); Y02D 70/1222 (2018.01); Y02D 70/1224 (2018.01); Y02D 70/1242 (2018.01); Y02D 70/1244 (2018.01); Y02D 70/1262 (2018.01); Y02D 70/1264 (2018.01); Y02D 70/142 (2018.01); Y02D 70/144 (2018.01); Y02D 70/162 (2018.01); Y02D 70/164 (2018.01); Y02D 70/166 (2018.01);
Abstract

A mobile transceiver having multiple subscriber identity module (SIM) cards and a method of selection is provided. In accordance with one embodiment, there is provided a method of operating a mobile transceiver, comprising: waking up the mobile transceiver from a low power mode; selecting a first subscriber identity module (SIM) card from a plurality of SIM cards; activating a cellular transceiver using the first SIM card; searching, via the cellular transceiver, for available wireless services associated with the first SIM card; and switching from the first SIM card to a second SIM card in the plurality of SIM cards when a wireless service for the first SIM card is not available.

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