Circuit-switched and multimedia subsystem voice continuity

Abstract

The invention moves service control including call control for a user element from a cellular network to a multimedia subsystem (MS) such as the Internet Protocol (IP) Multimedia Subsystem (IMS). Call control is provided by the MS irrespective of whether the user element is using cellular or WLAN access for the call. Call control for originating and terminating calls in the CS or MS as well as transferring calls between a circuit-switched subsystem (CS) and MS is anchored at a continuity control function (CCF) in the MS. All call signalling for the call is passed through the CCF. The CCF is a service provided in the user elements home MS and anchors the user elements effective CS calls and MS sessions to enable effective roaming across the CS and MS.

The present invention moves service control including call control for a user element from a cellular network to a multimedia subsystem (MS) such as the Internet Protocol (IP) Multimedia Subsystem (IMS). Call control is provided by the MS irrespective of whether the user element is using cellular or WLAN access for the call. Call control for originating and terminating calls in the CS or MS as well as transferring calls between a circuit-switched subsystem (CS) and MS is anchored at a continuity control function (CCF) in the MS. All call signaling for the call is passed through the CCF. The CCF is a service provided in the user elements home MS and anchors the user elements active CS calls and MS sessions to enable active roaming across the CS and MS.

The present invention moves service control including call control for a user element from a cellular network to a multimedia subsystem (MS) such as the Internet Protocol (IP) Multimedia Subsystem (IMS). Call control is provided by the MS irrespective of whether the user element is using cellular or WLAN access for the call. Call control for originating and terminating calls in the CS or MS as well as transferring calls between a circuit-switched subsystem (CS) and MS is anchored at a continuity control function (CCF) in the MS. All call signaling for the call is passed through the CCF. The CCF is a service provided in the user elements home MS and anchors the user elements active CS calls and MS sessions to enable active roaming across the CS and MS.

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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
4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Illustrative part: ---- Release: 7 + -	No	Family Member
3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: Illustrative part: ---- Release: + -	No	Family Member
4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Illustrative part: ---- Release: 7 + -	No	Family Member
5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: Illustrative part: ---- Release: + -	No	Family Member
4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: Illustrative part: ---- Release: + -	No	Family Member

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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
US2006209805A1	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
US2006209805A1	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
US2006209805A1	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	Yes	Basis Patent
US2006209805A1	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
US2006209805A1	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	Yes	Basis Patent
US8873540B2	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
US8873540B2	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
US8873540B2	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	Yes	Basis Patent
US8873540B2	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
US8873540B2	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	Yes	Basis Patent
WO2006097837A1	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
WO2006097837A1	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
WO2006097837A1	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	Yes	Family Member
WO2006097837A1	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	Yes	Family Member
WO2006097837A1	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	Yes	Family Member
CN101176327B	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
CN101176327B	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
CN101176327B	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	No	Family Member
CN101176327B	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
CN101176327B	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	No	Family Member
EP1864462A1	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP1864462A1	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP1864462A1	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	No	Family Member
EP1864462A1	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP1864462A1	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	No	Family Member
EP1864462A4	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP1864462A4	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP1864462A4	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	No	Family Member
EP1864462A4	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP1864462A4	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	No	Family Member
EP1864462B1	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP1864462B1	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP1864462B1	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	No	Family Member
EP1864462B1	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP1864462B1	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	No	Family Member
US2014286332A1	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US2014286332A1	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US2014286332A1	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	No	Family Member
US2014286332A1	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US2014286332A1	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	No	Family Member
DK1864462T3	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DK1864462T3	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DK1864462T3	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	No	Family Member
DK1864462T3	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DK1864462T3	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	No	Family Member
EP3264721A1	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP3264721A1	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP3264721A1	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	No	Family Member
EP3264721A1	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP3264721A1	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	No	Family Member
PT1864462T	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
PT1864462T	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
PT1864462T	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	No	Family Member
PT1864462T	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
PT1864462T	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	No	Family Member
ES2649525T3	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
ES2649525T3	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
ES2649525T3	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	No	Family Member
ES2649525T3	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
ES2649525T3	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	No	Family Member
EP3264721B1	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP3264721B1	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP3264721B1	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	No	Family Member
EP3264721B1	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP3264721B1	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	No	Family Member
DK3264721T3	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DK3264721T3	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DK3264721T3	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	No	Family Member
DK3264721T3	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DK3264721T3	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	No	Family Member
ES2837465T3	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
ES2837465T3	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
ES2837465T3	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	No	Family Member
ES2837465T3	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
ES2837465T3	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	No	Family Member
PT3264721T	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
PT3264721T	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
PT3264721T	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	No	Family Member
PT3264721T	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
PT3264721T	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	No	Family Member
US10708311B2	5G,4G,3G,2G	16/10/2023	ISLD-202310-048	ERICSSON INC	S1 TS Number: TS 124 229 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US10708311B2	4G,3G,2G	25/01/2024	ISLD-202401-020	ERICSSON INC	S1 TS Number: TS 123 237 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US10708311B2	4G,3G,2G	22/10/2007	ISLD-200711-002	NORTEL NETWORKS LIMITED	S1 TS Number: TS 124 206 v7.2.0 Version No: v7.2.0 Section No: ---- Release : 7 + -	No	Family Member
US10708311B2	3G	22/10/2007	ISLD-200711-003	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 806 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US10708311B2	4G,3G,2G	22/10/2007	ISLD-200711-004	NORTEL NETWORKS LIMITED	S1 TS Number: TS 123 206 v7.3.0 Version No: v7.3.0 Section No: ---- Release : 7 + -	No	Family Member

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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