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.

Date of Patent:
Feb. 07, 2017

Filed:

Jun. 04, 2015
Applicant:

Samsung Electronics Co., Ltd., Gyeonggi-do, KR;

Inventors:

Pavan Kumar Devarayanigari, Bangalore, IN;

Akshay Rastogi, Bangalore, IN;

Nitesh Pushpak Shah, Bangalore, IN;

Prasad Basavaraj Dandra, Bangalore, IN;

Vijay Ganesh Surisetty, Bangalore, IN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 36/00 (2009.01); H04W 60/00 (2009.01);
U.S. Cl.
CPC ...
H04W 36/0022 (2013.01); H04W 60/005 (2013.01); Y02B 60/50 (2013.01);
Abstract

A method of reducing delay in Circuit Switched FallBack (CSFB) in a Radio Access Technology (RAT) communications network. The method includes initiating, by a terminal, a combined attach procedure by sending an attach request message to the RAT communications network, receiving, by the terminal, an attach accept message along with Location Area Identification (LAI) information from the network in response to the attach request message, checking, by the terminal, network identifier information in a RAT information table based on the received LAI, and selecting a mobile network based on the network identifier information to trigger establishment of a circuit-switched call.


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