Content for TR 23.891 Word version: 9.0.0
4 Overall Requirements
5 Architectural Requirements and Considerations
6 Architectural Alternatives
7 Other Considerations
8 Comparison of Architectural Alternatives
9 Conclusions
$ Change history
4 Overall Requirements
5 Architectural Requirements and Considerations Word‑p. 8
5.1 Basic Assumptions
5.2 Architectural Requirements Word‑p. 9
5.3 Session Scenarios Word‑p. 10
6 Architectural Alternatives
6.1 Architectural Alternative #1
6.1.1 Objectives
6.1.2 Architectural Details
6.1.2.1 Architecture for NI-LR
6.1.2.2 Architecture for MT-LR and MO-LR Word‑p. 11
6.1.2.3 Provision of MME Address to GMLC for an NI-LR
6.1.3 Information Flows and Protocols Word‑p. 12
6.1.3.1 Location Support for IMS Emergency Calls
6.1.3.2 Location Procedure between the GMLC and E-SMLC Word‑p. 13
6.1.3.3 Network Based Positioning Procedure Word‑p. 15
6.1.3.4 UE Assisted and UE Based Positioning Procedure Word‑p. 17
6.1.3.5 Location Continuity for Handover in the PS Domain Word‑p. 18
6.1.3.5.1 Support of Intra E-UTRAN E-Node B Handover using X2 Interface
6.1.3.5.2 Support of Intra E-UTRAN E-Node B Handover using S1 Interface Word‑p. 19
6.1.3.5.3 Variant 1: Target MME/SGSN notification of MME/SGSN Relocation Word‑p. 20
6.1.3.5.4 Variant 2: Source MME/SGSN notification of MME/SGSN Relocation Word‑p. 23
6.1.3.6 Location Continuity for Emergency Call Handover between PS and CS Domains Word‑p. 26
6.1.3.7 MT-LR Procedure
6.1.3.8 Support of an MO-LR Word‑p. 27
6.1.4 Evaluation
6.2 Architectural Alternative #2 Word‑p. 29
6.2.1 Objectives
6.2.2 Architectural Details
6.2.2.1 Architecture for NI-LR
6.2.2.2 Architecture for MT-LR and MO-LR Word‑p. 30
6.2.2.3 Provision of MME Address to GMLC for an NI-LR
6.2.3 Information Flows and Protocols Word‑p. 31
6.2.3.1 Location Support for IMS Emergency Calls
6.2.3.2 Location Procedure between the GMLC, MME and E-SMLC
6.2.3.3 Network Based Positioning Procedure Word‑p. 33
6.2.3.4 UE Assisted and UE Based Positioning Procedure Word‑p. 34
6.2.3.5 Location Continuity for Handover in the PS Domain Word‑p. 35
6.2.3.5.1 Support of Intra E-UTRAN E-Node B Handover using X2 Interface
6.2.3.5.2 Support of Intra E-UTRAN E-Node B Handover using S1 Interface
6.2.3.5.3 Variant 1: Target MME/SGSN notification of MME/SGSN Relocation
6.2.3.5.4 Variant 2: Source MME/SGSN notification of MME/SGSN Relocation Word‑p. 36
6.2.3.6 Location Continuity for Emergency Call Handover between PS and CS Domains Word‑p. 39
6.2.3.7 MT-LR Procedure
6.2.3.8 Support of an MO-LR
6.2.4 Evaluation
6.2.5 User Plane interworking Word‑p. 41
6.3 Architectural Alternative #3 Word‑p. 43
6.3.1 Objectives
6.3.2 Architectural Details
6.3.2.1 Architecture for NI-LR
6.3.2.2 Architecture for MT-LR and MO-LR
6.3.2.3 Provision of MME Address to GMLC for an NI-LR Word‑p. 44
6.3.3 Information Flows and Protocols
6.3.3.1 Location Support for IMS Emergency Calls
6.3.3.2 Location Procedure between the GMLC, MME, eNodeB and E-SMLC
6.3.3.3 Network Based Positioning Procedure Word‑p. 46
6.3.3.4 UE Assisted and UE Based Positioning Procedure - Variant 1 Word‑p. 47
6.3.3.5 UE Assisted and UE Based Positioning Procedure - Variant 2
6.3.3.6 Location Continuity for Emergency Call Handover in the PS Domain Word‑p. 48
6.3.3.7 Location Continuity for Emergency Call Handover between PS and CS Domains Word‑p. 49
6.3.3.8 MT-LR Procedure
6.3.3.9 Support of an MO-LR
6.3.4 Evaluation Word‑p. 50
6.4 Architectural Alternative #4
6.4.1 Objectives
6.4.2 Architectural Details Word‑p. 51
6.4.3 Information Flows and Protocols
6.4.4 Evaluation Word‑p. 52
6.5 Architectural Alternative #5
6.5.1 Objectives
6.5.2 Architectural Details
6.5.2.1 Architecture for NI-LR
6.5.2.2 Architecture for MT-LR and MO-LR Word‑p. 53
6.5.2.3 Provision of MME Address to GMLC for an NI-LR
6.5.3 Information Flows and Protocols Word‑p. 54
6.5.3.1 Location Support for IMS Emergency Calls
6.5.3.2 Location Procedure between the GMLC, MME and E-SMLC
6.5.3.3 MT-LR Network Based Positioning Procedure Word‑p. 55
6.5.3.4 NI-LR Network Based Positioning Procedure Word‑p. 56
6.5.3.5 UE Assisted and UE Based Positioning Procedure for emergency session positioning Word‑p. 57
6.5.3.6 Location Continuity for Emergency Call Handover in the PS Domain Word‑p. 58
6.5.3.6.1 Support of Intra E-UTRAN E-Node B Handover using X2 interface
6.5.3.6.2 Support of Intra E-UTRAN E-Node B Handover using S1 interface
6.5.3.6.3 Support of Intra E-UTRAN MME Relocation
6.5.3.6.4 UTRAN to E-UTRAN Relocation (Emergency Location Only)
6.5.3.6.5 E-UTRAN to UTRAN Relocation (Emergency Location Only)
6.5.3.6.6 Variant2: Source MME/SGSN notification of MME/SGSN Relocation
6.5.3.7 Location Continuity for Emergency Call Handover between PS and CS Domains Word‑p. 59
6.5.3.8 MT-LR Procedure
6.5.3.9 Support of an MO-LR
6.5.4 Evaluation Word‑p. 60
6.5.5 User Plane interworking
7 Other Considerations Word‑p. 62
7.1 QoS
7.2 Privacy
7.3 Lawful Intercept ion
7.4 Location Service Continuity between Radio Access Technologies
8 Comparison of Architectural Alternatives
9 Conclusions Word‑p. 63
$ Change history Word‑p. 64
