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TR 23.700-17
Study on Wireless and Wireline Convergence for the 5G System (5WWC) –
Phase 2

3GPP‑Page   fToC↓   Partial Content →
V18.0.0 (Wzip)  2023/03  88 p.
Rapporteur:
Mr. Thiebaut, Laurent
Nokia France

full Table of Contents for  TR 23.700-17  Word version:  18.0.0

each clause number in 'red' refers to the equivalent title in the Partial Content
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1Scope  p. 9
2References  p. 9
3Definitions of terms and abbreviations  p. 10
3.1Terms  p. 10
3.2Abbreviations  p. 10
4Architectural Assumptions and Principles  p. 10
5Key Issues  p. 10
5.1Key Issue #1: Providing differentiated service for UE and Non-3GPP devices connected behind a 5G RG  p. 10
5.1.1Description  p. 10
5.2Key Issue #2: How to select a TNGF/N3IWF that supports the S-NSSAI(s) needed by the UE  p. 11
5.2.1Description  p. 11
6Solutions  p. 12
6.0Mapping of Solutions to Key Issues  p. 12
6.1Solution 1: N3GPP device behind 5G-RG  p. 12
6.1.1Description  p. 12
6.1.1.1Overall architecture  p. 12
6.1.1.2Support for differentiation of e.g. charging and QoS  p. 14
6.1.2Procedures  p. 14
6.1.3Impacts on Existing Nodes and Functionality  p. 14
6.2Solution 2: UE behind 5G-RG and FN-RG  p. 14
6.2.1Description  p. 14
6.2.1.1Overall architecture  p. 14
6.2.1.2Support for differentiated charging and QoS  p. 16
6.2.2Procedures  p. 17
6.2.2.1General  p. 17
6.2.2.2QoS and charging differentiation based on user location information  p. 17
6.2.2.3AF influence on differentiation for UEs behind RG  p. 18
6.2.3Impacts on Existing Nodes and Functionality  p. 19
6.3Solution 3: Differentiated QoS for N5CW devices behind 5G-RG  p. 19
6.3.1Description  p. 19
6.3.2Procedures  p. 20
6.3.3Impacts on Existing Nodes and Functionality  p. 20
6.4Solution 4: Solution of providing differentiated service for Non-3GPP devices connected behind a 5G-RG  p. 21
6.4.1Description  p. 21
6.4.2Procedures  p. 21
6.4.2.15G-RG initiates PDU Session Modification or Establishment for One Non-3GPP Device Category  p. 21
6.4.2.2SMF initiates PDU Session Modification or Establishment for One Non-3GPP Device Category  p. 25
6.4.3Impacts on Existing Nodes and Functionality  p. 26
6.5Solution 5: 5GC-capable UE behind 5G-RG using trusted Non-3GPP access  p. 26
6.5.1General  p. 26
6.5.2Registration procedure  p. 27
6.5.3Provisioning of subscription information in UDM  p. 29
6.5.4Impacts on existing Functions  p. 29
6.6Solution 6: New method for non-3GPP device connected behind a 5G-RG  p. 30
6.6.1Description  p. 30
6.6.2Procedures  p. 31
6.6.3Impacts on Existing Nodes and Functionality  p. 32
6.7Solution 7: Differentiated QoS for non-3GPP devices behind 5G-RG  p. 33
6.7.1Description  p. 33
6.7.1.1Introduction  p. 33
6.7.1.2Solution principles  p. 33
6.7.2Procedures  p. 34
6.7.3Impacts on Existing Nodes and Functionality  p. 34
6.8Solution 8 - Support of "combo Ethernet + IP" service  p. 35
6.8.1Overview  p. 35
6.8.2Description of the solution  p. 37
6.8.3Impacts on existing functions  p. 39
6.9Solution 9: 5GC-capable UE behind 5G-RG using untrusted Non-3GPP access  p. 40
6.9.1General  p. 40
6.9.2Registration procedure  p. 40
6.9.3Impacts on existing Functions  p. 40
6.10Solution 10: Registration via Trusted Non-3GPP Access with TNGF Relocation  p. 41
6.10.1Description  p. 41
6.10.2Procedures  p. 42
6.10.2.1Registration via trusted non-3GPP access with TNGF relocation  p. 42
6.10.3Impacts on Existing Nodes and Functionality  p. 44
6.11Solution 11: Registration via Untrusted Non-3GPP Access with N3IWF Relocation  p. 45
6.11.1Description  p. 45
6.11.2Procedures  p. 46
6.11.2.1Registration via untrusted non-3GPP access with N3IWF relocation  p. 46
6.11.3Impacts on Existing Nodes and Functionality  p. 48
6.12Solution 12: slice related TNGF selection for WLAN access  p. 48
6.12.1Description  p. 48
6.12.2Procedures  p. 48
6.12.3Impacts on Existing Nodes and Functionality  p. 50
6.13Solution 13: UE getting the slices supported by N3IWF (s)  p. 50
6.13.1Description  p. 50
6.13.2Procedures  p. 51
6.13.2.1Baseline N3IWF discovery using slice support get  p. 51
6.13.2.2AMF rejection in case of usage of a wrong N3IWF  p. 52
6.13.2.3Rejection by N3IWF with cause  p. 53
6.13.3Impacts on Existing Nodes and Functionality  p. 53
6.14Solution 14: use of AN NRF  p. 54
6.14.1Description  p. 54
6.14.2Procedures  p. 54
6.14.3Impacts on Existing Nodes and Functionality  p. 55
6.15Solution #15: Selecting N3IWF supporting the S-NSSAI needed by UE  p. 56
6.15.1Description  p. 56
6.15.2N3IWF selection solution  p. 56
6.15.2.1UE configuration  p. 56
6.15.2.2N3IWF selection  p. 57
6.15.3Procedures  p. 58
6.15.4Impacts on Existing Nodes and Functionality  p. 61
6.16Solution #16: N3IWF selection taking supported slices into account  p. 61
6.16.1Description  p. 61
6.16.1.1Introduction  p. 61
6.16.1.2Solution principles  p. 62
6.16.1.2.1General  p. 62
6.16.1.2.2N3IWF selection when the UE is located in the home country and when the UE is not located in the home country  p. 62
6.16.2Procedures  p. 62
6.16.3Impacts on Existing Nodes and Functionality  p. 62
6.16.4Impacts on Existing Nodes and Functionality  p. 63
6.17Solution 17: Untrusted Non-3GPP Access with N3IWF/TNGF Relocation due to network slicing  p. 63
6.17.1Description  p. 63
6.17.2Procedures  p. 63
6.17.3Impacts on Existing Nodes and Functionality  p. 64
6.18Solution 18: ANDSP based solution for slice related TNGF selection  p. 65
6.18.1Description  p. 65
6.18.2Procedures  p. 65
6.18.2.1Procedures for TNGF selection  p. 65
6.18.3Impacts on services, entities and interfaces  p. 65
6.19Solution #19: Selecting TNGF supporting the S-NSSAI needed by UE  p. 66
6.19.1Description  p. 66
6.19.2Procedures  p. 66
6.19.3Impacts on Existing Nodes and Functionality  p. 67
6.20Solution 20: providing differentiated service for UE and non-3GPP devices connected behind a 5G-RG  p. 68
6.20.1Description  p. 68
6.20.2Procedures  p. 68
6.20.2.1providing differentiated service for non-3GPP devices connected behind a 5G-RG  p. 68
6.20.2.2differentiated QoS for 5GC-capable UE connected behind a 5G-RG  p. 69
6.20.3Impacts on Existing Nodes and Functionality  p. 70
6.21Solution 21: Non-3GPP device behind 5G-RG based on 5GS exposure  p. 70
6.21.1Description  p. 70
6.21.1.1Introduction  p. 70
6.21.1.2Overall Architecture  p. 71
6.21.1.3Functional Description  p. 71
6.21.2Procedures  p. 72
6.21.3Impacts on Existing Nodes and Functionality  p. 74
6.22Solution 22: Support differentiated QoS for AUN3 devices  p. 74
6.22.1Description  p. 74
6.22.2Procedures  p. 74
6.22.3Impacts on Existing Nodes and Functionality  p. 76
6.23Solution 23: Delay budget for non-3GPP devices behind 5G-RG  p. 77
6.23.1Description  p. 77
6.23.2Procedures  p. 78
6.23.3Impacts on Existing Nodes and Functionality  p. 79
6.24Solution 24: Differentiated QoS for Non-Authenticable non-3GPP devices behind RG  p. 80
6.24.1Description  p. 80
6.24.2Procedures  p. 80
6.24.3Impacts on Existing Nodes and Functionality  p. 80
6.25Solution 25: Differentiated QoS for Authenticable non-3GPP devices behind RG.  p. 81
6.25.1Description  p. 81
6.25.2Procedures  p. 81
6.25.3Impacts on Existing Nodes and Functionality  p. 83
7Overall Evaluation  p. 83
8Conclusions  p. 83
8.1Key Issue #1: Providing differentiated service for UE and Non-3GPP devices connected behind a 5G RG  p. 83
8.1.1General  p. 83
8.1.2Conclusion for NAUN3 devices  p. 84
8.1.3Conclusion for AUN3 devices  p. 84
8.1.4Conclusions for UE(s)  p. 85
8.2Key Issue #2: How to select a TNGF/N3IWF that supports the S-NSSAI(s) needed by the UE  p. 86
8.2.1How to select an N3IWF that supports the S-NSSAI(s) needed by the UE  p. 86
8.2.2How to select a TNGF that supports the S-NSSAI(s) needed by the UE  p. 86
$Change history  p. 88

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