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TR 23.781 (SA6)
Study on Migration and Interconnection
for Mission Critical Services

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V15.0.0 (Wzip)  2017/06  66 p.

Rapporteur:  Mr. Chater-Lea, David
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The present document studies solutions to satisfy the requirements for interconnection and migration between Mission Critical systems. It may identify enhancements to be included in the Technical Specifications for those services.

full Table of Contents for  TR 23.781  Word version:   15.0.0


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1  ScopeWord-p. 7
2  References
3  Definitions and abbreviations
4  Migration and interconnection scenarios
5  Key IssuesWord-p. 15
5.1  Key Issues for interconnection
5.1.1  Key issue 1.1: MC system authorization to support interconnection calls
5.1.2  Key issue 1.2: Identification of users and groups in interconnection callsWord-p. 16
5.1.3  Key issue 1.3: Authorization for interconnection private calls
5.1.4  Key issue 1.4: Affiliation and authorization for interconnection MC service group callsWord-p. 17
5.1.5  Key issue 1.5: MC service group configuration for group defined in partner MC system
5.1.6  Key issue 1.6: Controlling MC service server and system for interconnection private calls
5.1.7  Key issue 1.7: Media routing for interconnection private calls
5.1.8  Key issue 1.8: Media routing for interconnection MC service group calls
5.1.9  Key issue 1.9: Security for interconnection callsWord-p. 19
5.1.10  Key issue 1.10: MC system network topology hiding
5.1.11  Key issue 1.11: Bearer control for interconnection calls
5.1.12  Key issue 1.12: Group membership
5.2  Key Issues for migration
6  SolutionsWord-p. 25
6.1  Solution 1: System authorization and configuration for interconnection and migrationUp
6.2  Solution 2: Connectivity to partner MC system for migration
6.3  Solution 3: Call control and media routing for MCPTT group calls for interconnectionWord-p. 31
6.4  Solution 4: User authorization and configuration for interconnection
6.5  Solution 5: Group configuration management for interconnectionWord-p. 34
6.6  Solution 6: User authorization and configuration for migrationWord-p. 37
6.7  Solution 7: User profile management for migration - Partner MC system CMS configures UE
6.8  Solution 8: User profile management for migration - Primary MC system CMS configures UE
6.9  Solution 9: Controlling system and media routing for interconnection private callsWord-p. 46
6.10  Solution 10: Migration service authorization
6.11  Solution 11: Migrated private call
6.12  Solution 12: Affiliation for logging during migration
7  Overall Evaluation
8  Conclusions
A  Change historyWord-p. 66

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