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:
Feb. 26, 2019
Filed:
Sep. 28, 2016
Applicant:
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Inventors:
Srinivas Chinthalapudi, Bangalore, IN;
Prasad Basavaraj Dandra, Bangalore, IN;
Assignee:
Samsung Electronics Co., Ltd, , KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 36/00 (2009.01); H04L 29/06 (2006.01); H04W 76/18 (2018.01); H04W 80/04 (2009.01);
U.S. Cl.
CPC ...
H04W 36/0022 (2013.01); H04L 29/06 (2013.01); H04L 65/1069 (2013.01); H04L 65/1089 (2013.01); H04L 69/24 (2013.01); H04W 76/18 (2018.02); H04W 80/04 (2013.01);
Abstract
Methods and apparatuses are provided for handling Internet protocol (IP) multimedia subsystem (IMS) and circuit switch fall back (CSFB) calls at a user equipment (UE) in a wireless network. A non-access stratum (NAS) of the UE receives an IMS indication when an IMS call is initiated at the UE. The NAS determines a state of the UE. The NAS performs an action based on the state of the UE to trigger one of the IMS call and a CSFB call.