Search International and National Patent Collections

1. (WO2015119452) DEVICE AND METHOD FOR PROVIDING SERVICE IN MOBILE COMMUNICATION SYSTEM

Pub. No.:    WO/2015/119452    International Application No.:    PCT/KR2015/001238
Publication Date: Fri Aug 14 01:59:59 CEST 2015 International Filing Date: Sat Feb 07 00:59:59 CET 2015
IPC: H04W 60/00
H04W 48/18
Applicants: SAMSUNG ELECTRONICS CO., LTD.
삼성전자주식회사
Inventors: JEONG, Sang-Soo
정상수
KIM, Hye-Jeong
김혜정
CHO, Song-Yean
조성연
Title: DEVICE AND METHOD FOR PROVIDING SERVICE IN MOBILE COMMUNICATION SYSTEM
Abstract:
The present invention relates to a method for providing a service by a user equipment in a mobile communication system. In the method, a connection request message is transmitted to a network when an entry to a non-legacy mobile communication system area is detected, a connection acceptance message including information on whether a voice service via an internet protocol is supported or whether a circuit switched fall back (CSFB) scheme is supported is received from the network, and a voice service is received through a non-legacy mobile communication system on the basis of the internet protocol or the CSFB scheme when the information included in the connection acceptance message indicates that the network supports the voice service via the internet protocol or the CSFB scheme.