ETSI TS 128 531 V15.5.0 (2020-01)

ETSI TS 128 531 V15.5.0 (2020-01)






TECHNICAL SPECIFICATION
5G;
Management and orchestration;
Provisioning
(3GPP TS 28.531 version 15.5.0 Release 15)

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3GPP TS 28.531 version 15.5.0 Release 15 1 ETSI TS 128 531 V15.5.0 (2020-01)



Reference
RTS/TSGS-0528531vf50
Keywords
5G
ETSI
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3GPP TS 28.531 version 15.5.0 Release 15 2 ETSI TS 128 531 V15.5.0 (2020-01)
Intellectual Property Rights
Essential patents
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Legal Notice
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
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"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI

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3GPP TS 28.531 version 15.5.0 Release 15 3 ETSI TS 128 531 V15.5.0 (2020-01)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 6
1 Scope . 7
2 References . 7
3 Definitions and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 8
4 General . 8
4.1 Overview . 8
4.2 Configuration information for the constituents of an NSI . 10
4.3 General information for network slice instance. 10
4.4 General information for network slice subnet instance . 11
4.5 General information for service profile . 11
4.6 General information for network slice related identifiers . 11
5 Specification level requirements . 13
5.1 Use cases . 13
5.1.1 Network slice instance creation . 13
5.1.2 Network slice subnet instance creation . 14
5.1.3 Network slice instance termination . 16
5.1.4 Network slice subnet instance termination . 17
5.1.5 Obtaining network slice subnet instance information . 18
5.1.6 Network slice feasibility check . 19
5.1.7 Network slice instance activation . 20
5.1.8 Network slice instance deactivation . 20
5.1.9 Network slice instance modification . 21
5.1.10 Network slice subnet instance activation . 22
5.1.11 Network slice subnet instance deactivation . 23
5.1.12 Network slice subnet instance modification . 24
5.1.13 Network slice subnet configuration . 25
5.1.14 Exposure of network slice management data . 25
5.1.15 Exposure of network slice management capability . 26
5.1.16 Network slice subnet instance management capability exposure . 26
5.1.17 Creation of a 3GPP NF . 27
5.1.18 Configuration of a 3GPP NF instance. 28
5.1.19 Creation of a 3GPP sub-network . 29
5.1.20 Configuration of a 3GPP sub-network . 30
5.1.21 Network slice subnet feasibility check. 31
5.1.22 Network slice resource capacity planning . 32
5.1.23 Network slice subnet management with assigned priority . 33
5.1.24 Management interaction with NFV MANO for network service priority . 33
5.2 Requirements . 34
5.2.1 Requirements for network slice provisioning service . 34
5.2.2 Requirements for network slice subnet provisioning service . 34
5.2.3 Requirements for NF provisioning service . 35
5.2.4 Requirements for sub-network provisioning service . 35
6 Management services for provisioning of networks and network slicing . 36
6.1 Management services for network slice provisioning . 36
6.2 Management services for network slice subnet provisioning . 39
6.3 Management services for network function provisioning . 40
6.4 Management services for network and sub-network provisioning . 41
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3GPP TS 28.531 version 15.5.0 Release 15 4 ETSI TS 128 531 V15.5.0 (2020-01)
6.5. Operations of provisioning . 42
6.5.1 AllocateNsi operation . 42
6.5.1.1 Description . 42
6.5.1.2 Input parameters . 42
6.5.1.3 Output parameters . 43
6.5.2 AllocateNssi operation . 43
6.5.2.1 Description . 43
6.5.2.2 Input parameters . 43
6.5.2.3 Output parameters . 43
6.5.3 DeallocateNsi operation . 43
6.5.3.1 Description . 43
6.5.3.2 Input parameters . 43
6.5.3.3 Output parameters . 44
6.5.4 DeallocateNssi operation . 44
6.5.4.1 Description . 44
6.5.4.2 Input parameters . 44
6.5.4.3 Output parameters . 44
6.5.5 AllocateNetwork operation . 44
6.5.5.1 Description . 44
6.5.5.2 Input parameters . 44
6.5.5.3 Output parameters . 44
7 Provisioning procedures of networks and network slicing . 45
7.1 General . 45
7.2 Procedure of Network Slice Instance Allocation . 45
7.3 Procedure of Network Slice Subnet Instance Allocation . 46
7.4 Procedure of Network Slice Instance Deallocation . 48
7.5 Procedure of Network Slice Subnet Instance Deallocation . 49
7.6 Procedure of Network Slice Instance Modification . 51
7.7 Procedure of Network Slice Subnet Instance Modification . 52
7.8 Procedure of Obtaining Network Slice Subnet Capability . 53
7.8.1 Introduction. 53
7.8.2 Querying Network Slice Subnet Capability Information . 53
7.8.3 Notify Network Slice Subnet Capability Information . 54
7.9 Procedure of TN coordination supporting network slicing . 54
7.9.1 Introduction . 54
7.9.2 Interaction with NFVO as TN Manager . 54
7.10 Procedure of NF instance creation . 55
7.11 Procedure of NF instance modification . 57
7.12 Procedure of NF instance deletion . 57
7.13 Procedure of reservation and checking feasibility of NSI . 58
7.14 Procedure of reservation and checking feasibility of network slice subnet . 59
7.15 Procedure of network slice capacity planning . 60
7.16 Procedure of allocating network with or without slicing for communication services . 62
8 RESTful HTTP-based solution set of provisioning. 63
8.1 Mapping of operations . 63
8.1.1 Introduction. 63
8.1.2 Operation AllocateNsi . 63
8.1.3 Operation AllocateNssi . 63
8.1.4 Operation DeallocateNsi . 64
8.1.5 Operation DeallocateNssi . 64
8.1.6 Operation AllocateNetwork . 64
8.2 Resources . 65
8.2.1 Resource definitions . 65
8.2.1.1 Resource ObjectManagement/NS/ServiceProfiles . 65
8.2.1.1.1 Description . 65
8.2.1.1.2 URI . 65
8.2.1.1.3 HTTP methods . 65
8.2.1.2 Resource ObjectManagement/NSS/SliceProfiles . 66
8.2.1.2.1 Description . 66
8.2.1.2.2 URI . 66
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3GPP TS 28.531 version 15.5.0 Release 15 5 ETSI TS 128 531 V15.5.0 (2020-01)
8.2.1.2.3 HTTP methods . 66
8.2.1.3 Resource ObjectManagement/ServiceProfiles . 67
8.2.1.3.1 Description . 67
8.2.1.3.2 URI . 67
8.2.1.3.3 HTTP methods . 67
Annex A (informative): Change history . 68
History . 69

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3GPP TS 28.531 version 15.5.0 Release 15 6 ETSI TS 128 531 V15.5.0 (2020-01)
Foreword
rd
This Technical Specification has been produced by the 3 Generation Partnership Project (3GPP).
The contents of the present document are subject to continuing work within the TSG and may change following formal
TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an
identifying change of release date and an increase in version number as follows:
Version x.y.z
where:
x the first digit:
1 presented to TSG for information;
2 presented to TSG for approval;
3 or greater indicates TSG approved document under change control.
y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,
updates, etc.
z the third digit is incremented when editorial only changes have been incorporated in the document.

ETSI

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3GPP TS 28.531 version 15.5.0 Release 15 7 ETSI TS 128 531 V15.5.0 (2020-01)
1 Scope
The present document specifies use cases, requirements, management services and procedures for provisioning of 5G
networks.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including
a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same
Release as the present document.
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TS 28.525: "Telecommunication management; Life Cycle Management (LCM) for mobile
networks that include virtualized network functions; Requirements".
[3] ETSI GS NFV-IFA 013 (V2.4.1) (2018-02): "Network Function Virtualisation (NFV); Release 2;
Management and Orchestration; Os-Ma-nfvo reference point - Interface and Information Model
Specification".
[4] 3GPP TS 28.530: "Management and orchestration; Concepts, use cases and requirements".
[5] 3GPP TS 22.261 "Service requirements for next generation new services and markets".
[6] 3GPP TS 28.541: "Management and orchestration; 5G Network Resource Model (NRM); Stage 2
and stage 3".
[7] 3GPP TS 28.526: "Life Cycle Management (LCM) for mobile networks that include virtualized
network functions; Procedures".
[8] 3GPP TS 28.532: "Management and orchestration; Generic management services".
[9] 3GPP TS 23.501: "Technical Specification Group Services and System Aspects;System
Architecture for the 5G System;Stage 2".
[10] 3GPP TS 38.300: "Technical Specification Group Radio Access Network;NR; NR and NG-RAN
Overall Description;Stage 2".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in TR 21.905 [1], TS 28.530 [4] and the
following apply. A term defined in the present document takes precedence over the definition of the same term, if any,
in TR 21.905 [1] and TS 28.530 [4].

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3GPP TS 28.531 version 15.5.0 Release 15 8 ETSI TS 128 531 V15.5.0 (2020-01)
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in TR 21.905 [1], TS 28.530 [4] and the following
apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if
any, in TR 21.905 [1].
5GC 5G Core Network
AMF Access and Mobility Management Function
CSC Communication Service Customer
CSMF Communication Service Management Function
CSP Communication Service Provider
CP Control Plane
IOC Information Object Class
MANO Management and Orchestration
MnS Management Service
NF Network Function
NFV Network Functions Virtualisation
NRM Network Resource Model
NSaaS Network Slice as a Service
NSI Network Slice Instance
NSMF Network Slice Management Function
NSSI Network Slice Subnet Instance
NSSMF Network Slice Subnet Management Function

TN Transport Network
VNF Virtualized Network Function
UP User Plane

4 General
4.1 Overview
5G system consists of 5G Access Network (AN), 5G Core Network (5GC). Network slicing is one of 5G key features.
The management aspects of a Network Slice Instance (NSI) are described by the four phases shown in Figure 4.3.1.1 of
TS 28.530 [4].
The provisioning of network slicing includes the four phases which are preparation, commissioning, operation and
decommissioning:
- In the preparation phase the NSI does not exist. The preparation phase includes network slice design, on-
boarding, evaluation of the network slice requirements, preparing the network environment and other necessary
preparations required to be done before the creation of an NSI.
- During the NSI lifecycle stage which include commissioning phase, operation phase and decommissioning
phase, the NSI provisioning operations include:
- Create an NSI;
- Activate an NSI;
- De-active an NSI;
- Modify an NSI;
- Terminate an NSI.
The operations of the provisioning of an NSI occurs during different phases of a NSI:
a) During the commissioning phase:
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3GPP TS 28.531 version 15.5.0 Release 15 9 ETSI TS 128 531 V15.5.0 (2020-01)
- Create an NSI.
During NSI creation all resources to the NSI have been created and configured to satisfy the network slice
requirements. NSI creation may trigger NSSI(s) creation or using existing NSSI(s) and setting up the
corresponding associations.
b) During the operation phase:
- Activate an NSI;
- Modify an NSI;
- De-active an NSI.
NSI activation includes any actions that make the NSI active to provide communication services. NSI activation
may trigger NSSI activation.
NSI modification in operation phase could map to several workflows, e.g. changes of NSI capacity, changes of
NSI topology, NSI reconfiguration. NSI modification can be triggered by receiving new network slice related
requirements, new communication service requirements, or the result of NSI supervision automatically. NSI
modification may trigger NSSI modification.
The NSI deactivation operation may be needed before NS
...