TS 23.216 ★
SRVCC – Single Radio Voice Call Continuity

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V16.4.0 (PDF) 2020/03 77 p.

V15.3.0 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, Curt Nokia Networks

3GPP 23.216 - SRVCC architecture for E-UTRAN to UTRAN/GERAN

essential Table of Contents for TS 23.216 Word version: 16.4.0

each title, in the "available" or "not available yet" area, links to the equivalent title in the CONTENT

2 References Word‑p. 7

3 Definitions and abbreviations Word‑p. 9

4 High level Principles and Concepts Word‑p. 10

4.1 High level Principles Word‑p. 10

4.1.1 Architectural Principles for 3GPP2 1xCS SRVCC Word‑p. 10

4.1.2 Architectural Principles for SRVCC and vSRVCC to 3GPP UTRAN/GERAN Word‑p. 11

4.1.3 Architectural Principles for SRVCC to 3GPP E-UTRAN/UTRAN (HSPA) |R11| Word‑p. 11

4.1.4 Architectural Principles for 5G-SRVCC to UTRAN |R16| Word‑p. 12

4.2 Concepts Word‑p. 12

4.2.1 E-UTRAN to 3GPP2 1xCS SRVCC Word‑p. 12

4.2.2 E-UTRAN to 3GPP UTRAN/GERAN SRVCC Word‑p. 13

4.2.2a E-UTRAN to 3GPP UTRAN vSRVCC |R11| Word‑p. 13

4.2.3 UTRAN (HSPA) to 3GPP UTRAN/GERAN SRVCC Word‑p. 14

4.2.4 SRVCC for IMS emergency sessions |R9| Word‑p. 15

4.2.5 Void

4.2.6 CS to PS SRVCC |R11| Word‑p. 18

4.2.7 NG-RAN to 3GPP UTRAN 5G-SRVCC |R16| Word‑p. 19

5 Architecture model and reference points Word‑p. 21

5.1 General Word‑p. 21

5.2 Reference architecture Word‑p. 21

5.2.1 E-UTRAN to 3GPP2 1xCS SRVCC architecture Word‑p. 21

5.2.2 E-UTRAN to 3GPP UTRAN/GERAN SRVCC architecture Word‑p. 21

5.2.2a 3GPP E-UTRAN to 3GPP UTRAN vSRVCC architecture |R11| Word‑p. 22

5.2.3 UTRAN (HSPA) to 3GPP UTRAN/GERAN SRVCC architecture Word‑p. 23

5.2.4 3GPP UTRAN/GERAN to 3GPP E-UTRAN or UTRAN (HSPA) SRVCC architecture |R11| Word‑p. 23

5.2.5 3GPP GERAN to 3GPP UTRAN (HSPA) SRVCC architecture |R11| Word‑p. 24

5.2.6 NG-RAN to 3GPP UTRAN 5G-SRVCC architecture |R16| Word‑p. 25

5.3 Functional Entities Word‑p. 26

5.3.1 3GPP2 1x CS SRVCC interworking solution function (1xCS IWS) Word‑p. 26

5.3.2 MSC Server enhanced for E-UTRAN/UTRAN (HSPA) to 3GPP UTRAN/GERAN SRVCC Word‑p. 26

5.3.2a MSC Server enhanced for vSRVCC |R11| Word‑p. 26

5.3.2b MSC Server enhanced for CS to PS SRVCC |R11| Word‑p. 26

5.3.3 MME Word‑p. 27

5.3.3A SGSN Word‑p. 29

5.3.4 UE enhanced for SRVCC Word‑p. 30

5.3.4a UE enhanced for vSRVCC |R11| Word‑p. 30

5.3.4b UE enhanced for 5G-SRVCC |R16| Word‑p. 31

5.3.5 Serving/PDN GW Word‑p. 31

5.3.6 E-UTRAN Word‑p. 31

5.3.6A UTRAN (HSPA) Word‑p. 32

5.3.6B GERAN/UTRAN CS |R11| Word‑p. 32

5.3.7 HSS Word‑p. 32

5.3.8 PCC Word‑p. 33

5.3.9 UDM |R16| Word‑p. 33

5.3.10 AMF |R16| Word‑p. 33

5.3.11 NG-RAN |R16| Word‑p. 33

5.4 Reference points Word‑p. 34

5.4.1 MME - 3GPP2 1xCS IWS (S102) Word‑p. 34

5.4.2 MME/SGSN - MSC Server (Sv) Word‑p. 34

5.4.2A MME_SRVCC - MSC Server (Sv) |R16| Word‑p. 34

5.4.3 E-UTRAN - MME (S1-MME) Word‑p. 34

5.4.3A UTRAN (HSPA) - SGSN (Iu-ps) Word‑p. 34

5.4.4 HSS - MME (S6a) Word‑p. 34

5.4.5 HSS - SGSN (Gr, S6d) Word‑p. 34

5.4.6 HSS - MSC (MAP D) |R11| Word‑p. 34

5.4.7 AMF - MME_SRVCC |R16| Word‑p. 35

5.4.8 NG-RAN - AMF |R16| Word‑p. 35

6 Procedures and flows Word‑p. 35

6.1 SRVCC from E-UTRAN to 3GPP2 1xCS Word‑p. 35

6.1.1 E-UTRAN Attach procedure for SRVCC Word‑p. 35

6.1.2 Service Request procedures for SRVCC Word‑p. 35

6.1.2A PS Handover procedures for SRVCC |R9| Word‑p. 36

6.1.3 Call flows for SRVCC from E-UTRAN Word‑p. 36

6.2 E-UTRAN and 3GPP GERAN/UTRAN (v)SRVCC Word‑p. 38

6.2.1 E-UTRAN Attach procedure for (v)SRVCC Word‑p. 38

6.2.1A Service Request procedures for (v)SRVCC Word‑p. 38

6.2.1B PS Handover procedures for (v)SRVCC |R9| Word‑p. 39

6.2.1C Dedicated Bearer Establishment and Modification procedures for vSRVCC |R11| Word‑p. 39

6.2.2 Call flows for (v)SRVCC from E-UTRAN Word‑p. 39

6.2.3 Returning back to E-UTRAN |R12| Word‑p. 51

6.3 UTRAN (HSPA) and 3GPP GERAN/UTRAN SRVCC Word‑p. 52

6.3.1 GPRS Attach procedure for SRVCC Word‑p. 52

6.3.1A Service Request procedures for SRVCC |R9| Word‑p. 52

6.3.1B PS Handover procedures for SRVCC |R9| Word‑p. 52

6.3.2 Call flows for SRVCC from UTRAN (HSPA) Word‑p. 53

6.4 CS to PS SRVCC |R11| Word‑p. 60

6.4.1 GPRS Attach procedure for SRVCC Word‑p. 60

6.4.2 E-UTRAN Attach procedure for SRVCC Word‑p. 60

6.4.3 Call flows for SRVCC to E-UTRAN/UTRAN (HSPA) Word‑p. 60

6.5 5G-SRVCC from NG-RAN to 3GPP UTRAN |R16| Word‑p. 63

6.5.1 NG-RAN Registration procedure for SRVCC Word‑p. 63

6.5.2 Service Request procedures for SRVCC Word‑p. 63

6.5.3 Intra-5GS PS Handover procedure for SRVCC Word‑p. 63

6.5.4 5G-SRVCC from NG-RAN to 3GPP UTRAN procedure Word‑p. 64

6.5.5 Emergency PDU session establishment and release procedure for SRVCC Word‑p. 65

7 Charging Word‑p. 66

8 Handover Failure Word‑p. 66

8.1 Failure in EUTRAN/UTRAN (HSPA) to 3GPP UTRAN/GERAN (v)SRVCC Word‑p. 66

8.2 Failure in CS to PS SRVCC |R11| Word‑p. 70

9 Security Word‑p. 72

9.1 Network Domain Security with 3GPP2 1xCS IWS Word‑p. 72

9.2 Network Domain Security with 3GPP UTRAN/GERAN MSC Server Word‑p. 72

A Determination of Neighbour Cell List Word‑p. 73

A.1 SRVCC from E-UTRAN to 3GPP2 1xCS Word‑p. 73

A.2 SRVCC from E-UTRAN to GERAN / UTRAN Word‑p. 73

A.3 SRVCC from UTRAN (HSPA) to GERAN / UTRAN Word‑p. 73

A.4 SRVCC from GERAN / UTRAN to E-UTRAN / UTRAN (HSPA) |R11| Word‑p. 74

$ Change history Word‑p. 75

TS 23.216 ★ SRVCC – Single Radio Voice Call Continuity

essential Table of Contents for TS 23.216 Word version: 16.4.0

TS 23.216 ★
SRVCC – Single Radio Voice Call Continuity