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. 26, 2014
Filed:
Aug. 15, 2012
Sai Sravan Bharadwaj Karri, Santa Clara, CA (US);
Mohan Rao Thota, Sunnyvale, CA (US);
Jinhua Ling, Palo Alto, CA (US);
Sachin J Sane, Santa Clara, CA (US);
Sai Sravan Bharadwaj Karri, Santa Clara, CA (US);
Mohan Rao Thota, Sunnyvale, CA (US);
Jinhua Ling, Palo Alto, CA (US);
Sachin J Sane, Santa Clara, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Establishing a circuit-switched fallback (CSFB) call. A request to establish a CSFB call may be received. A first wireless link with a first cell may be released. The first cell may provide packet-switched services but not circuit-switched services. A second wireless link may be established with a second cell. The second cell may provide packet-switched services and circuit-switched services. The CSFB call may be established via the connection to the second cell. Packet-switched registration with the second cell may be performed after the CSFB call is established.