Title:
The method for the hand-over to a line switching domain, a device, and a system
Document Type and Number:
Japanese Patent JP6005275
Kind Code:
B2
Abstract:
Embodiments of the present invention relate to the field of communication technologies, and provide a method, apparatus, and system for a handover to a circuit switched domain. The method includes: selecting an MSC capable of both CSFB and SRVCC for a UE; and selecting, if a location service of a CS domain triggers an SRVCC procedure for the UE when the UE has a VOIP service in progress, the MSC capable of both CSFB and SRVCC in the SRVCC procedure, so that the UE, after being handed over to the CS domain, accesses the MSC and implements the location service of the CS domain. The apparatus includes: a first selecting module and a second selecting module. The system includes a UE and the apparatus. The embodiments of the present invention enable the UE with the VOIP service in progress to be correctly handed over to the CS domain and implement the location service.
Inventors:
Liu Sea
U Mr. Wave
Ai Kasumi
U Mr. Wave
Ai Kasumi
Application Number:
JP2015520790A
Publication Date:
October 12, 2016
Filing Date:
July 13, 2012
Export Citation:
Assignee:
HUAWEI TECHNOLOGIES CO.,LTD.
International Classes:
H04W68/12; H04W48/18
Other References:
NTT DOCOMO,CSFB triggered by LCS while UE is in active VoIP session[online], 3GPP TSG-SA WG2#79 S2-103067,インターネット,2010年 5月14日
NEC,Clarification on the MSC selection mechanism in the MME/SGSN[online], 3GPP TSG-SA WG2#84 S2-112151,インターネット,2011年 4月15日
NEC,Clarification on the MSC selection mechanism in the MME/SGSN[online], 3GPP TSG-SA WG2#84 S2-112151,インターネット
Attorney, Agent or Firm:
Yoshifumi Saeki
Keiji Kiuchi
Keiji Kiuchi