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 9143914 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 22, 2015

Filed:

Mar. 15, 2013
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Nagaraja Kumar Maganti, Hyderabad, IN;

Bera Asimava, Hyderabad, IN;

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 11/04 (2006.01); H04W 4/00 (2009.01); H04W 36/00 (2009.01); H04W 4/22 (2009.01); H04W 76/00 (2009.01); H04W 60/00 (2009.01);
U.S. Cl.
CPC ...
H04W 4/22 (2013.01); H04W 76/007 (2013.01); H04W 36/0022 (2013.01); H04W 60/00 (2013.01);
Abstract

Systems and methods for handling requests for emergency calls are disclosed. In particular, the emergency calls may be expedited when a tracking area update is in progress. An extended service request is transmitted by a user equipment while performing a tracking area update, the request relating to an emergency call. A circuit-switched fallback procedure may be performed before completion of the TAU.


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