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TR 23.856 (SA2)
Single Radio Voice Call Continuity (SRVCC) enhancements

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V10.0.0 (Wzip)  2010/09  80 p.

Rapporteur:  Mr. Hou, Zhiqiang

This TR contains the results of feasibility study of the requirements and the alternative solutions to improve the handover performance of SRVCC.

full Table of Contents for  TR 23.856  Word version:   10.0.0

 

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1  ScopeWord-p. 7
2  References
3  Definitions and abbreviationsWord-p. 8
4  Requirements
5  Performance Analysis of Rel-8 SRVCC solutionWord-p. 9
6  AlternativesWord-p. 11
6.1  Alternative 1 - enhancement using delay prediction
6.2  Alternative 2 - Serial HandoverWord-p. 16
6.3Void
6.4  Alternative 4 - Media anchor in the serving networkWord-p. 17
6.5  Alternative 5 - Remote update optimizationWord-p. 22
6.6Void
6.7Void
6.8  Alternative 8 - SR-VCC Enhancement using anchoring in the home networkWord-p. 23
6.9  Alternative 9 - SR-VCC Enhancement using media detectionWord-p. 34
6.10  Alternatives 10 - eSRVCC with PDN bi-castingWord-p. 37
6.11  Alternative 11 - Media anchoring in the IMS-ALGWord-p. 41
6.12  Alternative 12 - HO enhancement by local anchoring with Indirect Forwarding (Merged alternative of alternatives 6 and 7)
6.13  Consolidated Alternative - SIP based solution for eSRVCCWord-p. 53
7  AssessmentUp
8  ConclusionWord-p. 69
A  Reducing the call drop probabilityWord-p. 70
B  Impacts on nodes of eSRVCC alternativesWord-p. 73
C  Examples of ATCF/ATGW collocation - SIP based solution for eSRVCCWord-p. 77
D  Change historyWord-p. 80

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