IMPROVED INTERSYSTEM CHANGE BETWEEN DIFFERENT RADIO ACCESS NETWORKS

Abstract

A wireless terminal can communicate with two radio access networks (RAN) (304 306) of different types. The wireless terminal can register simultaneously with a RAN of the first type and a RAN of the second type and can wirelessly connect to a RAN of either the first type or the second type in a connected state. The wireless terminal when registered with both a first RAN and a second RAN and when wirelessly connected to the first RAN in the connected state receives a mobility signal via the first RAN indicating a RAN of the second type and in response to receiving the mobility signal and in response to being so registered with the first RAN and second RAN transmits an access trigger signal (417). The access trigger signal indicates that the wireless terminal is to be connected to the second RAN in the connected state.

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Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Number	Explicitly Disclosed	Patent Type
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 + -	Yes	Basis Patent
4G	21/09/2014	ISLD-201410-017	NEC CORP	S1 TS Number: TS 123 401 v11.3.0 Version No: v11.3.0 Illustrative part: ---- Release: 11 S2 TS Number: TS 136 331 v11.8.0 Version No: v11.8.0 Illustrative part: 5.4.3 Release: 11 S3 TS Number: TS 136 300 v11.1.0 Version No: v11.1.0 Illustrative part: 5.4.3 , 6.2 Release: 11 +2 -2	Yes	Basis Patent
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 Illustrative part: 4.1.3 , 4.2.3 Release: 11 + -	Yes	Basis Patent
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 + -	Yes	Basis Patent

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2G 3G 4G 5G

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Publication No	Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Number	Explicitly Disclosed	Patent Type
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
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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
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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
Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
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