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TR 23.719SA2
Feasibility Study on
Service Domain Centralization

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V14.0.0 (Wzip)  2016/09  42 p.

WI Acronym:  FS_SeDoC
Rapporteur:  Mr. Joul, ChristopherT-Mobile USA Inc.

The objective of this Technical Report is to study and specify potential modifications to the ICS architecture in order to enable all services to be controlled via IMS rather than via CS legacy mechanisms (single service domain), for all subscribers of a network and also for inbound roamers.

full Table of Contents for  TR 23.719  Word version:   14.0.0

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1  ScopeWord-p. 6
2  References
3  Definitions and abbreviationsWord-p. 7
4  Architectural Assumptions
5  Key IssuesWord-p. 8
6  Solutions
6.1  Solution 1: Supporting inbound roamer with ICS Interworking Function
6.2  Solution 2: Supporting outbound roamer with an ICS Interworking FunctionWord-p. 13
6.3  Solution 3: Re-using the existing ICS mechanism for Outbound Roamers to non-SeDoC NetworksWord-p. 17
6.4  Solution 4: Emergency Calls Routed via IMS Service Domain
6.5  Solution 5: MSC Server enhanced for SeDoC to support registration and authentication for non-roaming UEsWord-p. 18
6.6  Solution 6: Re-using the existing mechanism for Roamers to non-Enhanced Networks
6.7  Solution 7: Control Layer ICS Interworking Function for Outbound Roamers
6.8  Solution 8: Registration and authentication for non-roaming UEs
6.9  Solution 9: Support of Single Service Profile in IMSWord-p. 25
6.10  Solution 10: MSC Server enhanced for SeDoC registration and authentication for inbound roaming UEsWord-p. 26
6.11  Solution 11: MSC Server enhanced for SeDoC
6.11.1  Overview
6.11.2  SeDoC ArchitectureWord-p. 29
6.11.3  SeDoCArchitecture for Inbound RoamersWord-p. 34
6.11.4  Impacts on existing nodes and functionalityWord-p. 41
6.11.5  Solution Evaluation
8  Conclusions
A  Change historyWord-p. 42

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