Content for TR 23.719 Word version: 14.0.0
5 Key Issues p. 8
5.1 Key Issue 1 - Transition to Single Service Profile in IMS p. 8
5.2 Key Issue 2 - Emergency Calls Routed via IMS Service Domain p. 8
5.3 Key Issue 3 - Inbound Roamers from non-Enhanced Networks p. 9
5.4 Key Issue 4 - Outbound Roamers to non-Enhanced Networks p. 9
5.5 Key Issue 5 - Registration and Authentication p. 9
6 Solutions p. 10
6.1 Solution 1: Supporting inbound roamer with ICS Interworking Function p. 10
6.2 Solution 2: Supporting outbound roamer with an ICS Interworking Function p. 13
6.2.1 Overview p. 13
6.2.2 Attach Procedure for SeDoC outbound roamer p. 15
6.2.3 Terminating session setup to outbound roaming UE p. 16
6.3 Solution 3: Re-using the existing ICS mechanism for Outbound Roamers to non-SeDoC Networks p. 17
6.3.1 Description p. 17
6.3.2 Impacts on existing nodes and functionality p. 17
6.3.3 Solution Evaluation p. 17
6.4 Solution 4: Emergency Calls Routed via IMS Service Domain p. 17
6.4.1 Overview p. 17
6.5 Solution 5: MSC Server enhanced for SeDoC to support registration and authentication for non-roaming UEs p. 18
6.5.1 Description p. 18
6.5.2 Impacts on existing nodes and functionality p. 20
6.5.3 Solution Evaluation p. 20
6.6 Solution 6: Re-using the existing mechanism for Roamers to non-Enhanced Networks p. 20
6.6.1 Description p. 20
6.6.2 Impacts on existing nodes and functionality p. 21
6.6.3 Solution Evaluation p. 21
6.7 Solution 7: Control Layer ICS Interworking Function for Outbound Roamers p. 21
6.7.1 Description p. 21
6.7.2 Impacts on existing nodes and functionality p. 23
6.7.3 Solution Evaluation p. 24
6.8 Solution 8: Registration and authentication for non-roaming UEs p. 24
6.8.1 Description p. 24
6.9 Solution 9: Support of Single Service Profile in IMS p. 25
6.9.1 Description p. 25
6.10 Solution 10: MSC Server enhanced for SeDoC registration and authentication for inbound roaming UEs p. 26
6.10.1 Description p. 26
6.10.2 Impacts on existing nodes and functionality p. 27
6.10.3 Solution Evaluation p. 28
6.11 Solution 11: MSC Server enhanced for SeDoC p. 28
6.11.1 Overview p. 28
6.11.2 SeDoC Architecture p. 29
6.11.2.1 Reference points p. 29
6.11.2.1.1 Reference Point MSC Server enhanced for SeDoC - CSCF (I2' Reference Point) p. 29
6.11.2.1.2 Reference Point MSC Server enhanced for SeDoC - TAS (I3' Reference Point) p. 29
6.11.2.1.3 Reference Point ICS-IWF - CSCF (Cx' Reference Point) p. 29
6.11.2.2 MSC Server enhanced for SeDoC Features p. 30
6.11.2.3 MSC Server enhanced for SeDoC Call Flows p. 32
6.11.2.3.1 Authentication/Registration for own users not roaming p. 32
6.11.2.3.2 Originating session for own users not roaming p. 32
6.11.2.3.3 Terminating session for own users not roaming p. 32
6.11.2.3.4 SMS-MO for own users not roaming p. 32
6.11.2.3.5 Supplementary Service Execution - Call forwarding unconditional p. 33
6.11.3 SeDoCArchitecture for Inbound Roamers p. 34
6.11.3.1 IMS Centralized Services Interworking Function (ICS-IWF) Features p. 34
6.11.3.2 Supplementary Services Management for Inbound roamers p. 35
6.11.3.3 MSC Server enhanced for SeDoC Call Flows for Inbound roamer p. 35
6.11.3.3.1 Authentication/Registration for Inbound roamers p. 35
6.11.3.3.1.1 Authentication/Registration for inbound roamer in a SeDoC enhanced network p. 35
6.11.3.3.1.2 Authentication/Registration for ICS inbound roamer in a SeDoC enhanced network p. 36
6.11.3.3.2 Originating session for Inbound roamer p. 37
6.11.3.3.3 Terminating session for Inbound roamer p. 37
6.11.3.3.4 Call flow including IN p. 38
6.11.3.4 MSC Server enhanced for SeDoC Call Flows for Outbound roamer p. 40
6.11.4 Impacts on existing nodes and functionality p. 41
6.11.5 Solution Evaluation p. 41
7 Void
8 Conclusions p. 41
$ Change History p. 42
