Title:
METHOD FOR PROCESSING CSFB OR SRVCC DURING SIPTO SERVICE
Document Type and Number:
WIPO Patent Application WO/2015/170858
Kind Code:
A1
Abstract:
Provided according to a disclosure of the present specification is a method for processing a circuit switched fall-back (CSFB) or a single radio voice call continuity (SRVCC) during a selected IP traffic offload (SIPTO) service. The method for processing a CSFB or a SRVCC during a SIPTO service in a network entity responsible for a control plane in a mobile communication network comprises the steps of: in a state in which a first packet data network (PDN) connection has been established for a terminal, establishing a second PDN connection according to the application of the SIPTO service while maintaining the first PDN connection; if CSFB or SRVCC is requested, determining which to release from among the first PDN connection and the second PDN connection; and releasing the any one PDN connection which has been determined.
Inventors:
KIM LAEYOUNG (KR)
RYU JINSOOK (KR)
KIM HYUNSOOK (KR)
KIM JAEHYUN (KR)
KIM TAEHUN (KR)
RYU JINSOOK (KR)
KIM HYUNSOOK (KR)
KIM JAEHYUN (KR)
KIM TAEHUN (KR)
Application Number:
PCT/KR2015/004459
Publication Date:
November 12, 2015
Filing Date:
May 04, 2015
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04W76/06; H04W36/00
Domestic Patent References:
| WO2013151333A1 | 2013-10-10 | |||
| WO2013036079A1 | 2013-03-14 |
Foreign References:
| KR20130079564A | 2013-07-10 | |||
| US20110170517A1 | 2011-07-14 |
Other References:
NEC: "Enabling UEs to support multiple PDN connections (subject to SIPTO) to the same APN to optimize PDN connections during active mode mobility", 3GPP TSG SA WG2 MEETING #79, 4 May 2010 (2010-05-04), Kyoto, Japan, pages 2 - 102296, XP050434491
See also references of EP 3142454A4
See also references of EP 3142454A4
Attorney, Agent or Firm:
S&IP PATENT & LAW FIRM (KR)
에스앤아이피 특허법인 (KR)
에스앤아이피 특허법인 (KR)
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