Terminal and method for switching between radio access technologies

Abstract

A method includes determining whether a packet switched (PS) signaling connection is released, the PS signaling connection being associated with a first network corresponding to a first radio access technology (RAT), controlling a switching timing to a second network corresponding to a second RAT according to a type of the PS signaling connection, and transmitting a request for switching to the second network. A terminal includes a controller to determine whether a packet switched (PS) signaling connection is released, the PS signaling connection being associated with a first network corresponding to a first radio access technology (RAT), and to control a switching timing to a second network corresponding to a second RAT according to a type of the PS signaling connection, and a transmitter to transmit a request for switching to the second network.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is a continuation of U.S. patent application Ser. No. 13 / 653,969, filed on Oct. 17, 2012, and claims priority from and the benefit under 35 U.S.C. §119(a) of Korean Patent Application No. 10-2012-0043688, filed on Apr. 26, 2012, which is hereby incorporated by reference for all purposes as if fully set forth herein.BACKGROUND[0002]1. Field[0003]The following disclosure relates to a terminal and method for switching between radio access technologies.[0004]2. Discussion of the Background[0005]A circuit switched fallback (CSFB) technique may be used to process a circuit switched call by switching from a long-term evolution (LTE) network to a 3rd generation (3G) network or to a 2nd generation (2G) network if the circuit switched call is requested while connecting to the LTE network, and reverting to the LTE network if the circuit switched call is terminated. The circuit switched call using the CSFB procedure (CSFB call) may be...

AI Technical Summary

Benefits of technology

This approach enables stable and faster transitions between RATs, reducing the likelihood of communication failures by considering the status of packet switched sessions and controlling the transmission of signaling connection release indications, thus enhancing the reliability of voice and data communications.

Problems solved by technology

In this instance, since a context of switching between RATs may not be successfully transferred, the location registration in an LTE network may fail and voice call and data communication failures may occur until a successful location registration in the LTE network.

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