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:
Aug. 01, 2017
Filed:
Sep. 20, 2011
Applicants:
Xinhua Ling, Waterloo, CA;
Xiaoming Zhao, Plano, TX (US);
Stefano Faccin, Hayward, CA (US);
Inventors:
Assignee:
BlackBerry Limited, Waterloo, Ontario, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 36/00 (2009.01); H04W 36/14 (2009.01);
U.S. Cl.
CPC ...
H04W 36/14 (2013.01); H04W 36/0022 (2013.01);
Abstract
Methods and apparatus to provide packet switched service continuity during circuit switched fallback operation are described. One example method includes determining that a target system does not support packet switched handover; determining if non-3GPP access for packet switched service is available; and triggering handover to the non-3GPP access.