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TS 23.216SA2
SRVCC – Single Radio Voice Call Continuity

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V16.4.0 (Wzip)2020/03  77 p.
V15.3.0 (PDF)  2019/09  72 p.
V14.0.0  2016/09  72 p.
V13.2.0  2016/09  73 p.
V12.4.0  2016/06  71 p.
V11.11.0  2014/06  70 p.
V10.6.0  2013/06  47 p.
V9.9.0  2012/03  45 p.
V8.8.0  2012/03  37 p.

Rapporteur:  Mr. Wong, CurtNokia Networks

This document specifies the architecture enhancements for Single Radio Voice Call Continuity (SRVCC) between the following access systems for voice calls that are anchored in the IMS:
  • from E-UTRAN to 3GPP2 1xCS
  • from E-UTRAN to UTRAN/GERAN
  • from UTRAN (HSPA) to UTRAN/GERAN
  • from UTRAN/GERAN to E-UTRAN
  • from GERAN to UTRAN (HSPA)
3GPP 23.216 - SRVCC architecture for E-UTRAN to UTRAN/GERAN

full Table of Contents for  TS 23.216  Word version:   16.4.0

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1  ScopeWord-p. 7
2  References
3  Definitions and abbreviationsWord-p. 9
4  High level Principles and Concepts
5  Architecture model and reference pointsWord-p. 21
5.1  General
5.2  Reference architectureUp
5.3  Functional EntitiesWord-p. 26
5.3.1  3GPP2 1x CS SRVCC interworking solution function (1xCS IWS)
5.3.2  MSC Server enhanced for E-UTRAN/UTRAN (HSPA) to 3GPP UTRAN/GERAN SRVCCUp
5.3.2a  MSC Server enhanced for vSRVCC [R11]
5.3.2b  MSC Server enhanced for CS to PS SRVCC [R11]
5.3.3  MMEWord-p. 27
5.3.3A  SGSN
5.3.4  UE enhanced for SRVCC
5.3.4a  UE enhanced for vSRVCC [R11]
5.3.4b  UE enhanced for 5G-SRVCC [R16]Word-p. 31
5.3.5  Serving/PDN GW
5.3.6  E-UTRAN
5.3.6A  UTRAN (HSPA)Word-p. 32
5.3.6B  GERAN/UTRAN CS [R11]
5.3.7  HSS
5.3.8  PCCWord-p. 33
5.3.9  UDM [R16]
5.3.10  AMF [R16]
5.3.11  NG-RAN [R16]
5.4  Reference pointsWord-p. 34
6  Procedures and flowsUp
6.1  SRVCC from E-UTRAN to 3GPP2 1xCS
6.2  E-UTRAN and 3GPP GERAN/UTRAN (v)SRVCCWord-p. 38
6.3  UTRAN (HSPA) and 3GPP GERAN/UTRAN SRVCCWord-p. 52
6.4  CS to PS SRVCC [R11]Word-p. 60
6.5  5G-SRVCC from NG-RAN to 3GPP UTRAN [R16]
7  ChargingWord-p. 66
8  Handover FailureUp
9  SecurityWord-p. 72
A  Determination of Neighbour Cell ListWord-p. 73
B  Change historyWord-p. 75

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