Content for TR 23.832 Word version: 10.0.0
6 Architecture Alternatives p. 10
6.1 Alternative 1 p. 10
6.1.1 Reference architecture p. 10
6.1.2 Functional Entities p. 11
6.1.2.1 HNB-IM-IWF p. 11
6.1.2.2 HNB-UP-IWF p. 12
6.1.3 Reference Points p. 12
6.1.3.1 Reference point between HNB-IM-IWF - IMS CN (H2) p. 12
6.1.3.2 Reference point between HNB-IM-IWF - HNB-UP-IWF (H4) p. 12
6.1.4 Protocol Stacks p. 12
6.1.4.1 Control Plane (Serving domain - CS) p. 12
6.1.4.2 Control Plane (Serving domain - IMS) p. 13
6.1.4.3 User Plane (Serving domain - CS) p. 13
6.1.4.4 User Plane (Serving domain - IMS) p. 13
6.1.5 Mobility Management p. 13
6.1.5.1 UE Attach procedure p. 13
6.1.5.2 Idle mode mobility (HNB to macro RNS) p. 14
6.1.5.3 Idle mode mobility (macro RNS to HNB) p. 16
6.1.6 Connection Management p. 18
6.1.6.1 Mobile originated call (IMS CN) p. 18
6.1.6.2 Mobile originated call (CS domain) p. 20
6.1.6.3 Mobile terminated call (IMS CN) p. 22
6.1.6.4 Mobile terminated call (CS domain) p. 24
6.1.7 Connected mode mobility (HNB to macro RNS) p. 25
6.2 Alternative 2: IMS capable HNB Subsystem using IMS centralised services IWF p. 27
6.3 Void
6.4 Alternative 4 - IMS HNB GW as SIP UA and HO anchor p. 28
6.4.1 Introduction p. 28
6.4.2 Reference architecture p. 28
6.4.3 Functional Entities p. 29
6.4.3.1 UE p. 29
6.4.3.2 HNB p. 29
6.4.3.3 IMS HNB GW p. 29
6.4.3.4 IMS p. 30
6.4.3.5 MSC Server p. 30
6.4.4 Interfaces and Reference points p. 30
6.4.4.1 Reference Point MSC Server - CSCF (I2) p. 30
6.4.4.2 Interface between the MSC and HNB GW (Iu_CS interface) p. 30
6.4.4.3 Interface between MSC servers or MSC server and IP-SM-GW (E-interface) p. 30
6.4.4.4 Reference Point MSC Server - GMSC Server (Nc Reference Point) p. 30
6.4.4.5 Reference Point CS-MGW - CS-MGW (Nb Reference Point) p. 31
6.4.5 Registration p. 31
6.4.5.1 Overview p. 31
6.4.5.2 CS attach and location update p. 31
6.4.5.3 IMS registration via IHAF p. 31
6.4.5.4 IMS de-registration via IHAF p. 33
6.4.6 Origination p. 33
6.4.6.1 CS origination via MSC p. 33
6.4.6.1.1 IHAF not registered, authentication required or CSG authorization required p. 33
6.4.6.1.2 IHAF registered, authentication not required and CSG authorization not required p. 34
6.4.6.2 IMS origination via IHAF p. 36
6.4.7 Termination p. 38
6.4.7.1 CS termination via MSC p. 38
6.4.7.2 IMS termination via IHAF p. 38
6.4.7.3 CS termination during IMS session p. 40
6.4.8 Control and user plane paths before and after handover p. 40
6.4.8.1 Control and user plane paths at call establishment p. 41
6.4.8.2 Control and user plane paths after handover of CS only calls p. 41
6.4.8.3 Control and user plane paths after handover of IMS session p. 42
6.4.9 Handover to macro p. 43
6.4.9.1 Handover to macro of CS call p. 43
6.4.9.2 Handover to macro of IMS session p. 43
6.4.9.3 Subsequent SRNS relocation of session anchored in IHAF p. 45
6.4.10 Handover to HNB p. 46
6.4.10.1 Handover to HNB of CS call p. 46
6.4.10.2 Handover to HNB of session anchored in IHAF p. 46
6.4.11 Supplementary services p. 49
6.5 Void
6.6 Alternative 6: Consolidated Architecture with SIP UA in HNB p. 50
6.6.1 Reference Architecture p. 50
6.6.2 Functional Elements p. 51
6.6.3 Reference Points p. 52
6.6.3.1 Hm reference point p. 52
6.6.3.2 Hi reference point p. 52
6.6.3.3 Iuh reference point p. 52
6.6.3.4 Iu-cs reference point p. 52
6.6.4 Protocol Architecture p. 52
6.6.4a Signalling and Bearer Paths p. 54
6.6.5 Information Flows p. 56
6.6.5.1 Registration of CS UE in IMS p. 56
6.6.5.2 Voice call origination from an IMS HNB p. 58
6.6.5.3 Voice call termination to an IMS HNB p. 59
6.6.5.4 Idle-Mode Mobility Procedures p. 61
6.6.5.4.1 Idle-mode mobility from IMS HNB to Macro CS p. 61
6.6.5.4.2 Idle-mode mobility from Macro CS to IMS HNB p. 61
6.6.5.4.3 Idle-mode mobility from IMS HNB to IMS HNB p. 61
6.6.5.5 Handover from IMS HNB to Macro CS p. 62
6.7 Alternative 7: Architecture for IMS-capable HNB subsystem with the SIP UA in the HNB GW p. 65
6.7.1 Reference architecture p. 65
6.7.2 Registration p. 66
6.7.3 MO p. 67
6.7.4 Handover to macro p. 68
6.8 Alternative 8: Interworking of IMS at HNB and HNB-CAS p. 69
6.8.1 Reference Architecture p. 69
6.8.2 Functional Entities p. 69
6.8.3 Reference Points p. 70
6.8.3.1 HGm p. 71
6.8.3.2 Mb p. 71
6.8.4 Information Flows p. 71
6.8.4.1 Registration and Authentication p. 71
6.8.4.1.1 HNB IMS Registration p. 71
6.8.4.1.2 UE Registration and Authentication p. 72
6.8.4.1.3 Deregistration due to Location Updating p. 74
6.8.4.2 Voice Call Processing p. 74
6.8.4.2.1 Mobile Originated Call - Success Scenario p. 75
6.8.4.2.2 Mobile Terminated Call - Success Scenario p. 76
6.8.4.3 Handover p. 78
6.8.4.4 SMS p. 79
7 Assessment p. 82
8 Conclusion p. 82
$ Change history p. 83
