Title:
MOBILE STATION AND MOBILE COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2010/087411
Kind Code:
A1
Abstract:
A mobile station (UE) comprises an emergency call transmission processing unit adapted to transmit an emergency call via a cell under control of a UMTS network if detecting an occasion for the emergency call transmission while being on standby in a cell under control of an LTE network that is a packet-exchange-only network and further if determining that it is possible to be on standby in the cell under control of the UMTS network having a circuit switching network.
Inventors:
KANAUCHI MASASHI (JP)
OHASHI AKI (JP)
SUZUKI KEISUKE (JP)
TANAKA ITSUMA (JP)
OHASHI AKI (JP)
SUZUKI KEISUKE (JP)
TANAKA ITSUMA (JP)
Application Number:
PCT/JP2010/051160
Publication Date:
August 05, 2010
Filing Date:
January 28, 2010
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
KANAUCHI MASASHI (JP)
OHASHI AKI (JP)
SUZUKI KEISUKE (JP)
TANAKA ITSUMA (JP)
KANAUCHI MASASHI (JP)
OHASHI AKI (JP)
SUZUKI KEISUKE (JP)
TANAKA ITSUMA (JP)
International Classes:
H04W4/90; H04M1/738; H04M11/04; H04W36/24; H04W48/18
Foreign References:
| JP2005167593A | 2005-06-23 |
Other References:
"3rd Generation Partnership Project;Technical Specification Group Services and System Aspects; Circuit Switched Fallback in Evolved Packet System;Stage 2(Release 8)", 3GPP TS 23.272, vol. 8.2.0, December 2008 (2008-12-01), XP050363518
"NEC, Discussion on emergency calls and CS Fallback", 3GPP TSG-RAN WG2#63BIS TDOC R2-085455, XP050604087
"Emergency Call for CSFB", 3GPP TSG-SA2 MEETING #71 S2-090952, 16 February 2009 (2009-02-16)
"Clarification on IMS Emergency Call in idle mode", 3GPP TSG-RAN2 MEETING #67BIS R2-095569, 12 October 2009 (2009-10-12), XP050390104
See also references of EP 2393314A4
"NEC, Discussion on emergency calls and CS Fallback", 3GPP TSG-RAN WG2#63BIS TDOC R2-085455, XP050604087
"Emergency Call for CSFB", 3GPP TSG-SA2 MEETING #71 S2-090952, 16 February 2009 (2009-02-16)
"Clarification on IMS Emergency Call in idle mode", 3GPP TSG-RAN2 MEETING #67BIS R2-095569, 12 October 2009 (2009-10-12), XP050390104
See also references of EP 2393314A4
Attorney, Agent or Firm:
MIYOSHI, Hidekazu et al. (JP)
Hidekazu Miyoshi (JP)
Hidekazu Miyoshi (JP)
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