MOBILE COMMUNICATION DEVICE AND COMMUNICATION CONTROL METHOD

Abstract

PROBLEM TO BE SOLVED: To solve a problem indicated by a CCO-to-GERAN failure when a mobile terminal is in an E-UTRAN connected mode an ISR mode is an on and RA does not change.

SOLUTION: A radio terminal can communicate with different types of two radio access networks (RANs) (304 306). The radio terminal can register with first and second types of RANs at the same time and connect with either the first type or the second type by radio in a connection state. When the radio terminal is registered with both first and second RANs and connected with the first RAN by radio in the connection state the radio terminal receives a mobility signal indicating the second type of RAN via the first RAN and transmits an access trigger signal (417) triggered by the reception of the mobility signal and the registration with the first and second RANs. The access trigger signal indicates that the radio terminal should be connected with the second RAN in the connection state.

SELECTED DRAWING: Figure 4

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3G,2G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 123 060 v11.3.0 Version No: v11.3.0 Illustrative part: 6.9.1 Release: 11 + -	No	Family Member
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5G,4G,3G,2G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 124 008 v11.4.0 Version No: v11.4.0 Illustrative part: 4.7.5 Release: 11 + -	No	Family Member

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WO2013146831A1	3G,2G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 123 060 v11.3.0 Version No: v11.3.0 Section No: ---- Release : 11 + -	Yes	Basis Patent
WO2013146831A1	4G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 123 401 v11.3.0 Version No: v11.3.0 Section No: Release : 11 S2 TS Number: TS 136 331 v11.8.0 Version No: v11.8.0 Section No: Release : 11 S3 TS Number: TS 136 300 v11.1.0 Version No: v11.1.0 Section No: Release : 11 +2 -2	Yes	Basis Patent
WO2013146831A1	4G,3G,2G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 123 002 v11.4.0 Version No: v11.4.0 Section No: ---- Release : 11 + -	Yes	Basis Patent
WO2013146831A1	5G,4G,3G,2G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 124 008 v11.4.0 Version No: v11.4.0 Section No: ---- Release : 11 + -	Yes	Basis Patent
GB2500723A	3G,2G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 123 060 v11.3.0 Version No: v11.3.0 Section No: ---- Release : 11 + -	No	Family Member
GB2500723A	4G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 123 401 v11.3.0 Version No: v11.3.0 Section No: Release : 11 S2 TS Number: TS 136 331 v11.8.0 Version No: v11.8.0 Section No: Release : 11 S3 TS Number: TS 136 300 v11.1.0 Version No: v11.1.0 Section No: Release : 11 +2 -2	No	Family Member
GB2500723A	4G,3G,2G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 123 002 v11.4.0 Version No: v11.4.0 Section No: ---- Release : 11 + -	No	Family Member
GB2500723A	5G,4G,3G,2G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 124 008 v11.4.0 Version No: v11.4.0 Section No: ---- Release : 11 + -	No	Family Member
CA2869797A1	3G,2G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 123 060 v11.3.0 Version No: v11.3.0 Section No: ---- Release : 11 + -	No	Family Member
CA2869797A1	4G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 123 401 v11.3.0 Version No: v11.3.0 Section No: Release : 11 S2 TS Number: TS 136 331 v11.8.0 Version No: v11.8.0 Section No: Release : 11 S3 TS Number: TS 136 300 v11.1.0 Version No: v11.1.0 Section No: Release : 11 +2 -2	No	Family Member
CA2869797A1	4G,3G,2G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 123 002 v11.4.0 Version No: v11.4.0 Section No: ---- Release : 11 + -	No	Family Member
CA2869797A1	5G,4G,3G,2G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 124 008 v11.4.0 Version No: v11.4.0 Section No: ---- Release : 11 + -	No	Family Member
CA2869797C	3G,2G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 123 060 v11.3.0 Version No: v11.3.0 Section No: ---- Release : 11 + -	No	Family Member
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CA2869797C	4G,3G,2G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 123 002 v11.4.0 Version No: v11.4.0 Section No: ---- Release : 11 + -	No	Family Member
CA2869797C	5G,4G,3G,2G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 124 008 v11.4.0 Version No: v11.4.0 Section No: ---- Release : 11 + -	No	Family Member
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Publication No	Technology	Declaration Information			Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
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