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TR 23.734SA2
Study on enhancement of 5GS
for Vertical and LAN Services

use "3GPP‑Page" to get the Word version
for a better overview, the Table of Contents (ToC) is reproduced
V16.2.0 (Wzip)  2019/06  117 p.

Rapporteur:  Ms. Chandramouli, Devaki

The objective and scope of this TR is to study enhancements to 5GS that are required to fulfil Stage-1 service requirements in vertical domains defined in TS 22.261 and TS 22.104:
  • Enablers (e.g. time synchronization of packet delivery in each hop) to support Time Sensitive Networking, and industrial control use cases specified by Stage 1.
  • Architecture enhancements required to support security requirements.
  • Enhancements to the 5G system to support 5GLAN service.
  • Enhancements to service exposure via APIs for 3rd party use of functionalities e.g. for information regarding the geographic location of coverage area of non-public network;
  • Enablers to support new KPIs (e.g. 5QI) to meet service requirements of vertical;
  • Support for non-public networks:
    • Support for UEs being registered in non-public network and a PLMN when the UE supports credentials required for non-public network and credentials required for a PLMN and is able to maintain both registrations independently.
    • Support for roaming, mobility and service continuity between PLMN and non-public networks (e.g. for mobility from non-public networks to PLMN) with direct interaction between non-public networks and PLMN.

full Table of Contents for  TR 23.734  Word version:   16.2.0

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1  ScopeWord-p. 8
2  References
3  Definitions and abbreviationsWord-p. 9
4  Architecture Assumptions
5  Key Issues
6  Solutions
6.1  Solution #1: Identification, selection and access control for non-public networks
6.2  Solution 2: Closed Access Group
6.3  Solution #3: Non-public network identification, selection and access control
6.4  Solution #4: Identification for non-public network
6.5  Solution #5: Solution for Access Control
6.6  Solution #6: Architecture framework for integration with TSNWord-p. 26
6.7  Solution #7: 5GS appearing as a TSN link for integration with TSNWord-p. 28
6.8  Solution #8: 5GS appearing as a TSN bridge (black box) for integration with TSN
6.9  Solution #9: Adapted TSN framework
6.10  Solution #10: Integrated TSN framework
6.11  Solution #11 Options for time synchronisation using TSN (key issue 3.2)
6.12  Solution #12: 5G LAN-type service and 5GLAN communications using principles in TS 29.561 [10]Word-p. 40
6.13  Solution #13: 5G LAN service network (switch mode) architectureWord-p. 42
6.14  Solution #14: Private DNN for 5GLAN Group CommunicationWord-p. 43
6.15  Solution #15: Basic architecture for supporting dynamic 5G LAN-type service and 5GLAN communication
6.16  Solution #16: Enhancements to support Deterministic ServicesWord-p. 54
6.17  Solution #17: Deterministic Delay QoS Class for Time Synchronization Support of 3GPP Network
6.19  Solution #19: Time synchronization between UE and TSNWord-p. 66
6.20  Solution #20: Supporting service continuity between Public PLMN and non-public network via an N3IWF-like gatewayWord-p. 68
6.21  Solution #21 - Using Dual Radio to access Public and non-public networksWord-p. 75
6.22  Solution #22: Using PLMN connection for NPN servicesWord-p. 78
6.23  Solution #23: Path-based UE to UE packet forwarding for 5GLAN Group CommunicationWord-p. 81
6.24  Solution #24: 5G LAN Group Management using the existing network architecture
6.25  Solution #25: Support of communication between Ethernet type 5GLAN and Ethernet network in data networkWord-p. 92
6.26  Solution 26: One to many communication for 5GLAN service within 5GLAN groupWord-p. 94
6.27  Solution 27: Source Mobility restrictions-based solution for access control during HO
6.28  Solution #28: TSN Time Synchronization Considering Multiple Clock Domains
6.28A  Solution #28A: TSN Time Synchronization Considering Multiple Clock DomainsWord-p. 101
6.29  Solution #29: Unified architecture for 5G LAN-type serviceWord-p. 105
6.30  Solution #30
6.31  Solution #31Word-p. 107
7  Overall EvaluationWord-p. 109
8  Conclusions
A  TSN standard/project for consideration in TSN integration in 5GS approachWord-p. 112
B  UE Group Management and Provisioning with Solution 24Word-p. 113
C  Change historyWord-p. 117

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