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TECHNICAL SPECIFICATION
5G;
5G System;
Network Slice Selection Services;
Stage 3
(3GPP TS 29.531 version 15.3.0 Release 15)
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3GPP TS 29.531 version 15.3.0 Release 15 1 ETSI TS 129 531 V15.3.0 (2019-04)
Reference
RTS/TSGC-0429531vf30
Keywords
5G
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3GPP TS 29.531 version 15.3.0 Release 15 2 ETSI TS 129 531 V15.3.0 (2019-04)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
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Foreword
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
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Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
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3GPP TS 29.531 version 15.3.0 Release 15 3 ETSI TS 129 531 V15.3.0 (2019-04)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 6
1 Scope . 6
2 References . 6
3 Definitions and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 7
4 Overview . 7
4.1 Introduction . 7
5 Services offered by the NSSF . 8
5.1 Introduction . 8
5.2 Nnssf_NSSelection Service . 8
5.2.1 Service Description . 8
5.2.2 Service Operations . 8
5.2.2.1 Introduction . 8
5.2.2.2 GET . 8
5.2.2.2.1 General . 8
5.2.2.2.2 Get service operation of Nnssf_NSSelection service during the registration procedure . 9
5.2.2.2.3 Get service operation of Nnssf_NSSelection service during the PDU session establishment . 9
5.2.2.2.X Get service operation of Nnssf_NSSelection service during UE configuration update
procedure . 10
5.3 Nnssf_NSSAIAvailability Service . 11
5.3.1 Service Description . 11
5.3.2 Service Operations . 11
5.3.2.1 Introduction . 11
5.3.2.2 Update Service Operation . 11
5.3.2.2.1 General . 11
5.3.2.3 Subscribe Service Operation . 12
5.3.2.3.1 General . 12
5.3.2.4 Unsubscribe Service Operation . 12
5.3.2.4.1 General . 12
5.3.2.5 Notify Service Operation . 13
5.3.2.5.1 General . 13
5.3.2.6 Delete Service Operation . 13
5.3.2.6.1 General . 13
6 API Definitions . 14
6.1 Nnssf_NSSelection Service API . 14
6.1.1 API URI . 14
6.1.2 Usage of HTTP . 14
6.1.2.1 General . 14
6.1.2.2 HTTP standard headers . 14
6.1.2.2.1 General . 14
6.1.2.2.2 Content type . 14
6.1.2.3.1 General . 15
6.1.3 Resources . 15
6.1.3.1 Overview . 15
6.1.3.2 Resource: Network Slice Information Document . 15
6.1.3.2.1 Description . 15
6.1.3.2.2 Resource Definition . 15
6.1.3.2.3 Resource Standard Methods . 16
6.1.3.2.3.1 GET. 16
ETSI
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3GPP TS 29.531 version 15.3.0 Release 15 4 ETSI TS 129 531 V15.3.0 (2019-04)
6.1.3.2.4 Resource Custom Operations . 17
6.1.4 Custom Operations without associated resources . 17
6.1.5 Notifications . 17
6.1.6 Data Model . 17
6.1.6.1 General . 17
6.1.6.2 Structured data types . 18
6.1.6.2.1 Introduction . 18
6.1.6.2.2 Type: AuthorizedNetworkSliceInfo . 19
6.1.6.2.3 Type: SubscribedSnssai . 21
6.1.6.2.4 Void . 21
6.1.6.2.5 Type: AllowedSnssai . 21
6.1.6.2.6 Type: AllowedNssai . 21
6.1.6.2.7 Type: NsiInformation . 21
6.1.6.2.8 Type: MappingOfSnssai . 22
6.1.6.2.9 Void . 22
6.1.6.2.10 Type: SliceInfoForRegistration . 22
6.1.6.2.11 Type: SliceInfoForPDUSession . 23
6.1.6.2.12 Type: ConfiguredSnssai . 23
6.1.6.2.13 Type: SliceInfoForUEConfigurationUpdate. 24
6.1.6.3 Simple data types and enumerations . 24
6.1.6.3.1 Introduction . 24
6.1.6.3.2 Simple data types . 24
6.1.6.3.3 Enumeration: RoamingIndication . 24
6.1.6.4 Binary data . 24
6.1.7 Error Handling . 25
6.1.7.1 General . 25
6.1.7.2 Protocol Errors . 25
6.1.7.3 Application Errors . 25
6.1.8 Feature negotiation . 25
6.1.9 Security . 25
6.2 Nnssf_NSSAIAvailability Service API . 26
6.2.1 API URI . 26
6.2.2 Usage of HTTP . 26
6.2.2.1 General . 26
6.2.2.2 HTTP standard headers . 26
6.2.2.2.1 General . 26
6.2.2.2.2 Content type . 26
6.2.2.3 HTTP custom headers . 26
6.2.2.3.1 General . 26
6.2.3 Resources . 27
6.2.3.1 Overview . 27
6.2.3.2 Resource: NSSAI Availability Store . 27
6.2.3.2.1 Description . 27
6.2.3.2.2 Resource Definition . 28
6.2.3.2.3 Resource Standard Methods . 28
6.2.3.2.3.1 PUT . 28
6.2.3.2.3.2 PATCH . 28
6.2.3.2.3.3 DELETE . 29
6.2.3.3 Resource: NSSAI Availability Notification Subscriptions Collection . 29
6.2.3.3.1 Description . 29
6.2.3.3.2 Resource Definition . 29
6.2.3.3.3 Resource Standard Methods . 30
6.2.3.3.3.1 POST. 30
6.2.3.4 Resource: Individual NSSAI Availability Notification Subscriptions . 30
6.2.3.4.1 Description . 30
6.2.3.4.2 Resource Definition . 30
6.2.3.4.3 Resource Standard Methods . 30
6.2.3.4.3.1 DELETE . 30
6.2.4 Custom Operations without associated resources . 31
6.2.5 Notifications . 31
6.2.5.1 General . 31
6.2.5.2 NSSAI Availability Notification . 31
ETSI
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3GPP TS 29.531 version 15.3.0 Release 15 5 ETSI TS 129 531 V15.3.0 (2019-04)
6.2.5.2.1 Description . 31
6.2.5.2.2 Notification Definition . 31
6.2.5.2.3 Notification Standard Methods . 31
6.2.5.2.3.1 POST. 31
6.2.6 Data Model . 32
6.2.6.1 General . 32
6.2.6.2 Structured data types . 32
6.2.6.2.1 Introduction . 32
6.2.6.2.2 Type: NssaiAvailabilityInfo . 33
6.2.6.2.3 Type: SupportedNssaiAvailabilityData . 33
6.2.6.2.4 Type: AuthorizedNssaiAvailabilityData. 33
6.2.6.2.5 Type: RestrictedSnssai . 33
6.2.6.2.6 Type: AuthorizedNssaiAvailabilityinfo . 34
6.2.6.2.7 Type: PatchDocument . 34
6.2.6.2.8 Type: NssfEventSubscriptionCreateData . 34
6.2.6.2.9 Type: NssfEventSubscriptionCreatedData . 34
6.2.6.2.10 Type: NssfEventNotification . 35
6.2.6.3 Simple data types and enumerations . 35
6.2.6.3.1 Introduction . 35
6.2.6.3.2 Simple data types . 35
6.2.6.3.3 Enumeration: NssfEventType . 35
6.2.6.4 Binary data . 35
6.2.7 Error Handling . 35
6.2.7.1 General . 35
6.2.7.2 Protocol Errors . 35
6.2.7.3 Application Errors . 36
6.2.8 Feature negotiation . 36
6.2.9 Security . 36
Annex A (normative): OpenAPI specification . 37
A.1 General . 37
A.2 Nnssf_NSSelection API . 37
A.3 Nnssf_NSSAIAvailability API . 41
Annex B (informative): Change history . 47
History . 48
ETSI
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3GPP TS 29.531 version 15.3.0 Release 15 6 ETSI TS 129 531 V15.3.0 (2019-04)
Foreword
This Technical Specification has been produced by the 3rd 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.
1 Scope
The present document specifies the stage 3 protocol and data model for the Nnssf Service Based Interface. It provides
stage 3 protocol definitions and message flows, and specifies the API for each service offered by the NSSF.
The 5G System stage 2 architecture and procedures are specified in 3GPP TS 23.501 [2] and 3GPP TS 23.502 [3].
The Technical Realiza
...