Content for TR 23.700-74 Word version: 18.0.0
6 Solutions p. 12
6.0 Mapping of Solutions to Key Issues p. 12
6.1 Solution #1: Support for service area group attribute p. 12
6.1.1 Introduction p. 12
6.1.2 Functional Description p. 13
6.1.3 Procedures p. 14
6.1.4 Impacts on existing entities and interfaces p. 16
6.2 Solution #2: New NEF service for connection management for a group p. 16
6.2.1 Introduction p. 16
6.2.2 Functional Description p. 17
6.2.3 Procedures p. 21
6.2.3.1 Procedure to support connection management for a group p. 21
6.2.3.2 Procedure to support CSA and CSR performance characteristics monitoring p. 22
6.2.4 Impacts on existing entities and interfaces p. 23
6.3 Solution #3: use of SMF sets for 5G VN group communications. p. 23
6.3.1 Introduction p. 23
6.3.2 Functional Description p. 23
6.3.3 Procedures p. 24
6.3.4 Impacts on existing entities and interfaces p. 25
6.4 Solution #4: Multiple SMFs for VN group communication p. 26
6.4.1 Introduction p. 26
6.4.2 Functional Description p. 26
6.4.3 Procedures p. 26
6.4.4 Impacts on existing entities and interfaces p. 31
6.5 Solution #5: Multiple SMFs involved 5G VN group communication p. 31
6.5.1 Introduction p. 31
6.5.2 Functional Description p. 31
6.5.3 Procedures p. 34
6.5.3.1 Retrieval of peer SMF p. 34
6.5.3.2 N19 tunnel management p. 36
6.5.3.3 UPF Topology management p. 38
6.5.4 Impacts on existing entities and interfaces p. 39
6.6 Solution #6: Reuse of Rel-17 QoS framework p. 40
6.6.1 Introduction p. 40
6.6.2 Functional Description p. 40
6.6.3 Procedures p. 41
6.6.4 Impacts on existing entities and interfaces p. 41
6.7 Solution #7: A PDU Session with multiple groups p. 41
6.7.1 Introduction p. 41
6.7.2 Functional Description p. 42
6.7.3 Procedures p. 43
6.7.4 Impacts on existing entities and interfaces p. 50
6.8 Solution #8: Support for service/LADN area and QoS provided by AF for a group p. 51
6.8.1 Introduction p. 51
6.8.2 Functional Description p. 51
6.8.3 Procedures p. 52
6.8.4 Impacts on existing entities and interfaces p. 53
6.9 Solution #9: Support for service/LADN area and QoS group attributes p. 53
6.9.1 Introduction p. 53
6.9.2 Functional Description p. 53
6.9.3 Procedures p. 55
6.9.4 Impacts on existing entities and interfaces p. 56
6.10 Solution #10: Support 5G VN service area with LADN mechanism p. 56
6.10.1 Key Issue mapping p. 56
6.10.2 Description p. 56
6.10.3 Procedures for support of LADN service area p. 57
6.10.4 Impacts on services, entities and interfaces p. 57
6.11 Solution #11: Support for group status event reporting p. 58
6.11.1 Introduction p. 58
6.11.2 Functional Description p. 58
6.11.3 Procedures p. 59
6.11.4 Impacts on existing entities and interfaces p. 60
6.12 Solution #12: Support 5G VN service area restriction with SMF service area p. 60
6.12.1 Key Issue mapping p. 60
6.12.2 Description p. 60
6.12.3 Procedures for support of SMF service area p. 61
6.12.4 Impacts on services, entities and interfaces p. 62
6.13 Solution #13: Support for group attribute management p. 62
6.13.1 Introduction p. 62
6.13.2 Functional Description p. 62
6.13.3 Group Provisioning Procedure p. 62
6.13.4 Impacts on existing entities and interfaces p. 63
6.14 Solution #14: Group status event reporting based on existing NEF Event Exposure service p. 64
6.14.1 Introduction p. 64
6.14.2 Functional Description p. 64
6.14.3 Procedures p. 64
6.14.4 Impacts on existing entities and interfaces p. 65
6.15 Solution #15: Group status event reporting p. 66
6.15.1 Introduction p. 66
6.15.2 Functional Description p. 66
6.15.3 Procedures p. 66
6.15.4 Impacts on existing entities and interfaces p. 67
6.16 Solution #16: Use of N6 interconnect for 5G VN with multiple SMFs p. 68
6.16.1 Introduction p. 68
6.16.2 Functional Description p. 68
6.16.2.1 General p. 68
6.16.2.2 Native N6 p. 68
6.16.2.3 N6 overlay p. 69
6.16.2.4 Traffic routing/forwarding p. 70
6.16.2.5 Dealing with dynamic (de)selection of PSA UPF(s) to serve a 5G VN group p. 70
6.16.3 Procedures p. 71
6.16.4 Impacts on existing entities and interfaces p. 71
6.17 Solution #17: Allowing 5G VN group member UE simultaneously send data to different multicast groups with different QoS policy p. 72
6.17.1 Introduction p. 72
6.17.2 Functional Description p. 72
6.17.3 Procedures p. 73
6.17.4 Impacts on existing entities and interfaces p. 74
6.18 Solution #18: Support Group service area restriction with using Area of interesting p. 74
6.18.1 Introduction p. 74
6.18.2 Functional Description p. 74
6.18.3 Procedures p. 75
6.18.4 Impacts on existing entities and interfaces p. 76
6.19 Solution #19: Solution of Multiple SMFs for VN group communication p. 76
6.19.1 Introduction p. 76
6.19.2 Functional Description p. 76
6.19.3 Procedures p. 77
6.19.4 Impacts on existing entities and interfaces p. 78
6.20 Solution #20: Solution on signalling scalability issues for large VN groups with lots of devices into account p. 78
6.20.1 Introduction p. 78
6.20.2 Functional Description p. 79
6.20.3 Procedures p. 80
6.20.4 Impacts on existing entities and interfaces p. 80
6.21 Solution #21: Support for attribute of Maximum Bit Rate for a 5G VN group p. 81
6.21.1 Introduction p. 81
6.21.2 Functional Description p. 81
6.21.3 Procedures p. 82
6.21.3.1 Procedure for support of the attribute of Group-MBR for a VN group when a UE initiates a 5G LAN PDU session establishment request p. 82
6.21.3.2 Procedure for support of the attribute of Group-MBR for a VN group when a UE or network initiates a 5G LAN PDU session release request p. 84
6.21.3.3 Procedure for support of the attribute of Group-MBR for a VN group when a UE or network initiates a 5G LAN PDU session modification request p. 85
6.21.4 Impacts on existing entities and interfaces p. 85
6.22 Solution #22: Support for traffic characteristics provisioning and performance characteristics monitoring p. 86
6.22.1 Introduction p. 86
6.22.2 Functional Description p. 86
6.22.2.1 Parameters related to Traffic Characteristics provisioning and Performance Characteristics monitoring p. 86
6.22.2.1a Performance Characteristics monitoring p. 87
6.22.2.2 Performance Characteristics Monitoring using NWDAF p. 87
6.22.3 Procedures p. 89
6.22.3.1 Traffic Characteristics provisioning and Performance Characteristics Monitoring for TSC and non-TSC scenarios p. 89
6.22.3.2 Performance Characteristics Monitoring using NWDAF p. 91
6.22.4 Impacts on existing entities and interfaces p. 91
