TR 28.824
Study on Network Slice Management Capability Exposure
V18.0.1 (Wzip)
2023/06 62 p.
- Rapporteur:
- Dr. Yu, Xiaobo
Alibaba (China) Group., Ltd.
full Table of Contents for TR 28.824 Word version: 18.0.1
1 Scope
2 References
3 Definitions of terms, symbols and abbreviations
4 Overview
5 Use cases for network management capability exposure
6 Potential requirements for network management capability exposure
7 Possible solutions for network management capability exposure
8 Conclusion and Recommendation
A Appendix with UML code of the sequence diagrams
$ Change history
1 Scope p. 8
The present document describes use cases, potential requirements and solutions for exposure of management services to external network slice consumers, e.g. verticals and service providers. The present document provides conclusions and recommendations on the next steps for the standardization.
2 References p. 8
3 Definitions of terms, symbols and abbreviations p. 9
4 Overview p. 9
4.1 General p. 9
4.1.1 Concepts related to network management capability exposure p. 9
4.1.1.1 Exposed Management Services p. 9
4.1.1.2 Exposure of Management Services p. 9
4.1.1.3 Exposure Governance p. 10
4.1.1.3.0 General p. 10
4.1.1.3.1 Filtering p. 10
4.1.1.4 Exposure via BSS p. 10
4.1.1.4.1 General p. 10
4.1.1.4.2 Exposure scenarios p. 10
4.1.1.5 Exposure via OSS p. 11
4.1.1.5.1 General p. 11
4.1.1.5.2 Exposure scenarios p. 11
4.1.2 Roles related to network management capability exposure p. 11
4.1.3 Types of interface for the exposure of network slice p. 11
4.1.3.1 Introduction p. 11
4.1.3.2 Use case No.1: simple case p. 13
4.1.3.3 Use case No.2: partners involved p. 13
4.1.4 Procedures related to consumption of exposed network management capabilities p. 14
4.1.4.1 Introduction p. 14
4.1.4.2 Procedure invoking internal service order after receiving product order from NSC p. 14
4.1.4.3 Procedure invoking external product order after receiving product order from NSC p. 15
4.1.4.4 Procedure invoking external service order after receiving product order from NSC p. 16
4.1.4.5 Procedure for product onboarding p. 17
4.1.4.6 Procedure for consumption of exposed MnS after service order is completed p. 17
4.2 Issues p. 19
4.2.1 Issue #1: Types of NSCs p. 19
4.2.2 Issue #2: Types of capabilities available for exposure p. 20
4.2.3 Issue #3: EGMF/MCEG p. 20
4.2.4 Issue #4: NSC-NSP service interaction p. 20
4.2.5 Void
4.2.6 Issue #6: Network slice management capability exposure interface via OSS p. 20
4.2.7 Issue #7: Capability exposure ecosystem p. 21
5 Use cases for network management capability exposure p. 21
5.1 Exposed network slice management capability consumption p. 21
5.2 Exposure of MnS for monitoring QoS of video application p. 22
5.2.1 Description p. 22
5.2.2 Potential issues and gaps p. 23
5.2.2.1 Issues p. 23
5.2.2.2 Gaps p. 23
5.3 exposed MnS discovery service p. 23
5.3.1 Description p. 23
5.3.2 Potential issues and gaps p. 23
5.3.2.1 Issues p. 23
5.3.2.2 Gaps p. 24
5.4 Exposure of network slice as a product p. 24
5.4.1 Description p. 24
5.4.1.0 General p. 24
5.4.1.1 Sub-use case 1: NSP and NOP played by the same organization p. 24
5.4.1.2 Sub-use case 2: NOP role played simultaneously by different organizations p. 25
5.4.2 Potential issues and gaps p. 27
5.4.2.1 Issues p. 27
5.4.2.2 Gaps p. 27
5.5 Exposure of network slice as a service p. 28
5.5.1 Description p. 28
5.5.1.0 General p. 28
5.5.1.1 Sub-use case 1: NSP and NOP play by the same organization p. 28
5.5.1.2 Sub-use case 2: NOP role played simultaneously by different organizations p. 29
5.5.2 Potential issues and gaps p. 31
5.5.2.1 Issues p. 31
5.5.2.2 Gaps p. 31
5.6 Exposure to application servers and application functions p. 31
5.6.1 Description p. 31
5.6.2 Issue and gaps p. 32
6 Potential requirements for network management capability exposure p. 32
6.1 Potential requirements related to exposed MnS discovery service p. 32
6.2 Potential requirements related to exposure interface via OSS p. 33
7 Possible solutions for network management capability exposure p. 33
7.1 Possible solution for "exposed MnS support to discovery systems" - Scenario 5.4 p. 33
7.2 Possible solutions for exposed MnS discovery service p. 33
7.3
7.4
7.5 Solution for internal service order after receiving product order p. 37
7.6 Solution for external product order after receiving product order p. 38
7.7 Solution for external service order after receiving product order p. 38
7.8 Potential solution for product onboarding p. 39
7.9 Potential solutions for network slice management capability exposure via CAPIF p. 39
7.9.1 Exposure via CAPIF alternative 1 p. 39
7.9.2 Exposure via CAPIF alternative 2 p. 40
7.9.3 Exposure via CAPIF alternative 3 p. 43
7.9.4 Evaluation p. 46
7.10 Possible solution for network slice management capability exposure p. 47
7.11 Potential solution for consumption of exposed MnS after service order completed p. 49
7.12 Possible solution for "Exposure to application servers and application functions" - Clause 5.8 p. 50
7.13 Possible solution for end-to-end handling of NSC requirements for network slice management capabilities exposure p. 50
8 Conclusion and Recommendation p. 52
8.1 Reference Architecture for network slice ordering, provisioning and assurance p. 52
8.1.1 Conclusion p. 52
8.1.2 Recommendation p. 54
8.2 Network slice management capability exposure via CAPIF p. 54
8.2.1 Conclusion p. 54
8.2.2 Recommendation p. 55
8.3 Filtering p. 55
8.3.1 Conclusion p. 55
8.3.2 Recommendation p. 55
8.4 Capability exposure ecosystem p. 55
8.4.1 Conclusion p. 55
8.4.2 Recommendation p. 55
A Appendix with UML code of the sequence diagrams p. 56
A.1 UML code for Figure 4.1.4.2.1 p. 56
A.2 UML code for Figure 4.1.4.3.1 p. 56
A.3 UML code for Figure 4.1.4.4.1 p. 57
A.4 UML code for Figure 4.1.2.1.1 p. 57
A.5 UML code for Figure 4.1.4.5 p. 58
A.6 UML code for 7.3.1 p. 58
A.7 UML code for 7.3.2 p. 58
A.8 UML code for Figure 4.1.4.6.1 p. 59
$ Change history p. 60
