ETSI TS 129 580 V19.5.0 (2026-03)

5G; 5G System; Multicast/Broadcast Service Function services; Stage 3 (3GPP TS 29.580 version 19.5.0 Release 19)

RTS/TSGC-0329580vj50

General Information

• Status: Not Published
• Technical Committee: 3GPP CT 3 - Interworking with external networks (formely CN3)
• Current Stage: 8 - Draft receipt by ETSI Secretariat
• Completion Date: 10-Mar-2026

Standards Content (Sample)

TECHNICAL SPECIFICATION
5G;
5G System;
Multicast/Broadcast Service Function services;
Stage 3
(3GPP TS 29.580 version 19.5.0 Release 19)


3GPP TS 29.580 version 19.5.0 Release 19 1 ETSI TS 129 580 V19.5.0 (2026-03)

Reference
RTS/TSGC-0329580vj50
Keywords
5G
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ETSI
3GPP TS 29.580 version 19.5.0 Release 19 2 ETSI TS 129 580 V19.5.0 (2026-03)
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Legal Notice
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. These shall be
interpreted as being references to the corresponding ETSI deliverables.
The cross reference between 3GPP and ETSI identities can be found at 3GPP to ETSI numbering cross-referencing.
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
3GPP TS 29.580 version 19.5.0 Release 19 3 ETSI TS 129 580 V19.5.0 (2026-03)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 7
1 Scope . 9
2 References . 9
3 Definitions, symbols and abbreviations . 10
3.1 Definitions . 10
3.2 Symbols . 10
3.3 Abbreviations . 10
4 Overview . 11
5 Services offered by the MBSF . 12
5.1 Introduction . 12
5.2 Nmbsf_MBSUserService Service . 12
5.2.1 Service Description . 12
5.2.2 Service Operations . 12
5.2.2.1 Introduction . 12
5.2.2.2 Nmbsf_MBSUserService_Create service operation . 13
5.2.2.2.1 General . 13
5.2.2.2.2 MBS User Service Creation . 13
5.2.2.3 Nmbsf_MBSUserService_Retrieve service operation . 14
5.2.2.3.1 General . 14
5.2.2.3.2 MBS User Service Retrieval . 14
5.2.2.4 Nmbsf_MBSUserService_Update service operation . 15
5.2.2.4.1 General . 15
5.2.2.4.2 MBS User Service Update . 15
5.2.2.5 Nmbsf_MBSUserService_Delete service operation . 15
5.2.2.5.1 General . 15
5.2.2.5.2 MBS User Service Deletion . 16
5.3 Nmbsf_MBSUserDataIngestSession Service . 17
5.3.1 Service Description . 17
5.3.2 Service Operations . 17
5.3.2.1 Introduction . 17
5.3.2.2 Nmbsf_MBSUserDataIngestSession_Create service operation . 18
5.3.2.2.1 General . 18
5.3.2.2.2 MBS User Data Ingest Session Creation . 18
5.3.2.3 Nmbsf_MBSUserDataIngestSession_Retrieve service operation . 19
5.3.2.3.1 General . 19
5.3.2.3.2 MBS User Data Ingest Session Retrieval . 20
5.3.2.4 Nmbsf_MBSUserDataIngestSession_Update service operation . 20
5.3.2.4.1 General . 20
5.3.2.4.2 MBS User Data Ingest Session Update . 20
5.3.2.5 Nmbsf_MBSUserDataIngestSession_Delete service operation . 22
5.3.2.5.1 General . 22
5.3.2.5.2 MBS User Data Ingest Session Deletion . 22
5.3.2.6 Nmbsf_MBSUserDataIngestSession_StatusSubscribe service operation . 23
5.3.2.6.1 General . 23
5.3.2.6.2 MBS User Data Ingest Session Status Subscription Creation . 23
5.3.2.7 Nmbsf_MBSUserDataIngestSession_StatusSubscribeMod service operation . 23
5.3.2.7.1 General . 23
5.3.2.7.2 MBS User Data Ingest Session Status Subscription Update . 24
5.3.2.8 Nmbsf_MBSUserDataIngestSession_StatusUnsubscribe service operation . 24
5.3.2.8.1 General . 24
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5.3.2.8.2 MBS User Data Ingest Session Status Subscription Deletion . 25
5.3.2.9 Nmbsf_MBSUserDataIngestSession_StatusNotify service operation . 25
5.3.2.9.1 General . 25
5.3.2.9.2 MBS User Data Ingest Session Status Notification . 25
6 API Definitions . 27
6.1 Nmbsf_MBSUserService Service API . 27
6.1.1 Introduction. 27
6.1.2 Usage of HTTP . 27
6.1.2.1 General . 27
6.1.2.2 HTTP standard headers . 27
6.1.2.2.1 General . 27
6.1.2.2.2 Content type . 27
6.1.2.3 HTTP custom headers . 28
6.1.3 Resources . 28
6.1.3.1 Overview . 28
6.1.3.2 Resource: MBS User Services . 28
6.1.3.2.1 Description . 28
6.1.3.2.2 Resource Definition . 29
6.1.3.2.3 Resource Standard Methods . 29
6.1.3.2.4 Resource Custom Operations . 31
6.1.3.3 Resource: Individual MBS User Service . 31
6.1.3.3.1 Description . 31
6.1.3.3.2 Resource Definition . 31
6.1.3.3.3 Resource Standard Methods . 31
6.1.4 Custom Operations without associated resources . 36
6.1.5 Notifications . 36
6.1.6 Data Model . 36
6.1.6.1 General . 36
6.1.6.2 Structured data types . 36
6.1.6.2.1 Introduction . 36
6.1.6.2.2 Type: MBSUserService . 37
6.1.6.2.3 Type: ServiceNameDescription . 37
6.1.6.2.4 Type: MBSUserServicePatch . 38
6.1.6.3 Simple data types and enumerations . 38
6.1.6.3.1 Introduction . 38
6.1.6.3.2 Simple data types . 38
6.1.6.3.3 Enumeration: ServiceAnnouncementMode . 38
6.1.6.4 Data types describing alternative data types or combinations of data types . 39
6.1.6.5 Binary data . 39
6.1.6.5.1 Binary Data Types . 39
6.1.7 Error Handling . 39
6.1.7.1 General . 39
6.1.7.2 Protocol Errors . 39
6.1.7.3 Application Errors . 39
6.1.8 Feature negotiation . 39
6.1.9 Security . 39
6.2 Nmbsf_MBSUserDataIngestSession Service API . 41
6.2.1 Introduction. 41
6.2.2 Usage of HTTP . 41
6.2.2.1 General . 41
6.2.2.2 HTTP standard headers . 41
6.2.2.2.1 General . 41
6.2.2.2.2 Content type . 41
6.2.2.3 HTTP custom headers . 41
6.2.3 Resources . 42
6.2.3.1 Overview . 42
6.2.3.2 Resource: MBS User Data Ingest Sessions . 43
6.2.3.2.1 Description . 43
6.2.3.2.2 Resource Definition . 43
6.2.3.2.3 Resource Standard Methods . 44
6.2.3.2.4 Resource Custom Operations . 46
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6.2.3.3 Resource: Individual MBS User Data Ingest Session . 46
6.2.3.3.1 Description . 46
6.2.3.3.2 Resource Definition . 46
6.2.3.3.3 Resource Standard Methods . 46
6.2.3.3.4 Resource Custom Operations . 51
6.2.3.4 Resource: MBS User Data Ingest Session Status Subscriptions . 51
6.2.3.4.1 Description . 51
6.2.3.4.2 Resource Definition . 51
6.2.3.4.3 Resource Standard Methods . 52
6.2.3.4.4 Resource Custom Operations . 53
6.2.3.5 Resource: Individual MBS User Data Ingest Session Status Subscription . 54
6.2.3.5.1 Description . 54
6.2.3.5.2 Resource Definition . 54
6.2.3.5.3 Resource Standard Methods . 54
6.2.3.5.4 Resource Custom Operations . 59
6.2.4 Custom Operations without associated resources . 59
6.2.5 Notifications . 59
6.2.5.1 General . 59
6.2.5.2 MBS User Data Ingest Session Status Notification . 59
6.2.5.2.1 Description . 59
6.2.5.2.2 Target URI . 59
6.2.5.2.3 Standard Methods . 60
6.2.6 Data Model . 61
6.2.6.1 General . 61
6.2.6.2 Structured data types . 65
6.2.6.2.1 Introduction . 65
6.2.6.2.2 Type: MBSUserDataIngSession . 66
6.2.6.2.3 Type: MBSDistributionSessionInfo . 69
6.2.6.2.4 Type: MBSUserDataIngSessionPatch . 74
6.2.6.2.5 Type: ObjectDistrMethInfo . 75
6.2.6.2.6 Type: PacketDistrMethInfo . 76
6.2.6.2.7 Type MBSUserDataIngStatSubsc . 76
6.2.6.2.8 Type SubscribedEvent . 76
6.2.6.2.9 Type MBSUserDataIngStatNotif . 77
6.2.6.2.10 Type EventNotification . 77
6.2.6.2.11 Type MBSUserServAnmt. 78
6.2.6.2.12 Type MBSDistSessionAnmt. 79
6.2.6.2.13 Type ObjectDistMethAnmtInfo . 80
6.2.6.2.14 Type: FECConfig . 80
6.2.6.2.15 Type: AddFecParams . 81
6.2.6.2.16 Type MBSUserDataIngStatSubscPatch . 81
6.2.6.2.17 Type MbsDistSessFailure . 81
6.2.6.2.18 Type MbsDistSessFailureSets . 81
6.2.6.2.19 Type RepetitionRuleRm . 82
6.2.6.2.20 Type: MBSDistributionSessionInfoRm . 82
6.2.6.2.21 Type: MBSUserDataIngSessionPatchEnh . 82
6.2.6.3 Simple data types and enumerations . 82
6.2.6.3.1 Introduction . 82
6.2.6.3.2 Simple data types . 82
6.2.6.3.3 Enumeration: DistributionMethod . 82
6.2.6.3.4 Enumeration: Event . 83
6.2.6.3.5 Enumeration: DistSessionFailure . 84
6.2.6.4 Data types describing alternative data types or combinations of data types . 85
6.2.6.4.1 Type: ProblemDetailsMBS. 85
6.2.6.5 Binary data . 85
6.2.6.5.1 Binary Data Types . 85
6.2.7 Error Handling . 85
6.2.7.1 General . 85
6.2.7.2 Protocol Errors . 86
6.2.7.3 Application Errors . 86
6.2.8 Feature negotiation . 86
6.2.9 Security . 87
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Annex A (normative): OpenAPI specification . 88
A.1 General . 88
A.2 Nmbsf_MBSUserService API . 89
A.3 Nmbsf_MBSUserDataIngestSession API . 95
Annex B (informative): Withdrawn API versions . 113
B.1 General . 113
B.2 Nmbsf_MBSUserService API . 113
B.3 Nmbsf_MBSUserDataIngestSession API . 113
Annex C (informative): Change history . 114
History . 117

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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.
In the present document, modal verbs have the following meanings:
shall indicates a mandatory requirement to do something
shall not indicates an interdiction (prohibition) to do something
The constructions "shall" and "shall not" are confined to the context of normative provisions, and do not appear in
Technical Reports.
The constructions "must" and "must not" are not used as substitutes for "shall" and "shall not". Their use is avoided
insofar as possible, and they are not used in a normative context except in a direct citation from an external, referenced,
non-3GPP document, or so as to maintain continuity of style when extending or modifying the provisions of such a
referenced document.
should indicates a recommendation to do something
should not indicates a recommendation not to do something
may indicates permission to do something
need not indicates permission not to do something
The construction "may not" is ambiguous and is not used in normative elements. The unambiguous constructions
"might not" or "shall not" are used instead, depending upon the meaning intended.
can indicates that something is possible
cannot indicates that something is impossible
The constructions "can" and "cannot" are not substitutes for "may" and "need not".
will indicates that something is certain or expected to happen as a result of action taken by an agency
the behaviour of which is outside the scope of the present document
will not indicates that something is certain or expected not to happen as a result of action taken by an
agency the behaviour of which is outside the scope of the present document
might indicates a likelihood that something will happen as a result of action taken by some agency the
behaviour of which is outside the scope of the present document
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3GPP TS 29.580 version 19.5.0 Release 19 8 ETSI TS 129 580 V19.5.0 (2026-03)
might not indicates a likelihood that something will not happen as a result of action taken by some agency
the behaviour of which is outside the scope of the present document
In addition:
is (or any other verb in the indicative mood) indicates a statement of fact
is not (or any other negative verb in the indicative mood) indicates a statement of fact
The constructions "is" and "is not" do not indicate requirements.
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1 Scope
The present document specifies the stage 3 protocol and data model for the Nmbsf Service Based Interface. It provides
stage 3 protocol definitions and message flows, and specifies the API for each service offered by the MBSF.
The 5G System stage 2 architecture and procedures are specified in 3GPP TS 23.501 [2] and 3GPP TS 23.502 [3]. The
stage 2 architecture and procedures for 5G Multicast/Broadcast Services are specified in 3GPP TS 23.247 [14] and
3GPP TS 26.502 [15].
The Technical Realization of the Service Based Architecture and the Principles and Guidelines for Services Definition
are specified in 3GPP TS 29.500 [4] and 3GPP TS 29.501 [5].
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 23.501: "System Architecture for the 5G System; Stage 2".
[3] 3GPP TS 23.502: "Procedures for the 5G System; Stage 2".
[4] 3GPP TS 29.500: "5G System; Technical Realization of Service Based Architecture; Stage 3".
[5] 3GPP TS 29.501: "5G System; Principles and Guidelines for Services Definition; Stage 3".
[6] OpenAPI: "OpenAPI Specification Version 3.0.0", https://spec.openapis.org/oas/v3.0.0.
[7] 3GPP TR 21.900: "Technical Specification Group working methods".
[8] 3GPP TS 33.501: "Security architecture and procedures for 5G system".
[9] IETF RFC 6749: "The OAuth 2.0 Authorization Framework".
[10] 3GPP TS 29.510: "5G System; Network Function Repository Services; Stage 3".
[11] IETF RFC 9113: "HTTP/2".
[12] IETF RFC 8259: "The JavaScript Object Notation (JSON) Data Interchange Format".
[13] IETF RFC 9457: "Problem Details for HTTP APIs".
[14] 3GPP TS 23.247: "Architectural enhancements for 5G multicast-broadcast services; Stage 2".
[15] 3GPP TS 26.502: "5G Multicast-Broadcast User Service Architecture".
[16] 3GPP TS 29.554: "5G System; Background Data Transfer Policy Control Service; Stage 3".
[17] 3GPP TS 29.571: "5G System; Common Data Types for Service Based Interfaces; Stage 3".
[18] 3GPP TS 29.122: "T8 reference point for northbound Application Programming Interfaces
(APIs)".
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[19] OMA: "OMNA BCAST Service Class Registry",
https://technical.openmobilealliance.org/OMNA/bcast/bcast-service-class-registry.html.
[20] 3GPP TS 29.581: "5G System; Multicast/Broadcast Service Transport Services; Stage 3".
[21] IANA: "Reliable Multicast Transport (RMT) FEC Encoding IDs and FEC Instance IDs",
https://www.iana.org/assignments/rmt-fec-parameters/rmt-fec-parameters.xhtml#rmt-fec-
parameters-1
[22] IETF RFC 7396: "JSON Merge Patch".
[23] 3GPP TS 26.517: "5G Multicast-Broadcast User Services; Protocols and Formats".
[24] 3GPP TS 29.522: "5G System; Network Exposure Function Northbound APIs; Stage 3".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following
apply. A term defined in the present document takes precedence over the definition of the same term, if any, in
3GPP TR 21.905 [1].
For the purpose of the present document, the terms and definitions given in clause 3 of 3GPP TS 23.247 [14] and
clause 3 of 3GPP TS 26.502 [15] also apply, including the ones referencing other specifications.
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An
abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in
3GPP TR 21.905 [1].
FEC Forward Erasure Correction
MBS Multicast/Broadcast Service.
MBSF Multicast/Broadcast Service Function
MBSTF Multicast/Broadcast Service Transport Function
TMGI Temporary Mobile Group Identity
URI Uniform Resource Identifier
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4 Overview
In the frame of Multicast/Broadcast Services (MBS), the Multicast/Broadcast Service Function (MBSF) provides
services to NF service consumers (e.g. AF, NEF) via the Nmbsf service based interface. The MBSF supports for this
purpose the functionalities defined in 3GPP TS 26.502 [15] and 3GPP TS 23.247 [14], i.e. service level functionalities
to support MBS and the control of the MBSTF, when used.
Figures°4-1 and 4.2 depict the Multicast/Broadcast related reference architecture of the MBSF respectively in SBI
representation and reference point representation.
MBSF
Nmbsf
AF NEF
Figure 4-1: Reference model for the MBSF Services – SBI representation
AF
Nmb10
MBSF
NEF
Nmb5
Figure 4-2: Reference Model for the MBSF Services – Reference point representation
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5 Services offered by the MBSF
5.1 Introduction
The MBSF provides the following services:
- Nmbsf_MBSUserService
- Nmbsf_MBSUserDataIngestSession
Table 5.1-1 summarizes the corresponding APIs defined for this specification.
Table 5.1-1: API Descriptions
Service Name Clause Description OpenAPI Specification File apiName Annex
Nmbsf_MBSUser MBS User TS29580_Nmbsf_MBSUserSe
5.2 nmbsf-mbs-us A.2
Service Management Service rvice.yaml
Nmbsf_MBSUser MBS User Data Ingest
TS29580_Nmbsf_MBSUserDa nmbsf-mbs-
DataIngestSessio 5.3 Session Management A.3
taIngestSession.yaml ud-ingest
n Service
5.2 Nmbsf_MBSUserService Service
5.2.1 Servic
...