ETSI TS 126 501 V17.10.0 (2024-07)

5G; 5G Media Streaming (5GMS); General description and architecture (3GPP TS 26.501 version 17.10.0 Release 17)

RTS/TSGS-0426501vha0

General Information

• Status: Not Published
• Technical Committee: 3GPP SA 4 - Codec
• Current Stage: 12 - Citation in the OJ (auto-insert)
• Completion Date: 30-Jul-2024

Standards Content (Sample)

TECHNICAL SPECIFICATION
5G;
5G Media Streaming (5GMS);
General description and architecture
(3GPP TS 26.501 version 17.10.0 Release 17)

3GPP TS 26.501 version 17.10.0 Release 17 1 ETSI TS 126 501 V17.10.0 (2024-07)

Reference
RTS/TSGS-0426501vha0
Keywords
5G
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ETSI
3GPP TS 26.501 version 17.10.0 Release 17 2 ETSI TS 126 501 V17.10.0 (2024-07)
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ETSI
3GPP TS 26.501 version 17.10.0 Release 17 3 ETSI TS 126 501 V17.10.0 (2024-07)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 7
1 Scope . 8
2 References . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 11
3.3 Abbreviations . 11
4 Media Streaming architecture . 12
4.0 Media Streaming features (informative) . 12
4.0.1 Introduction. 12
4.0.2 Content hosting . 13
4.0.3 Content publishing . 14
4.0.4 Content preparation. 14
4.0.5 Network assistance . 15
4.0.6 Dynamic policies . 16
4.0.7 Remote control . 16
4.0.8 Consumption reporting . 16
4.0.9 QoE metrics reporting . 17
4.0.10 Edge processing . 17
4.0.11 eMBMS delivery . 17
4.0.12 Data collection, reporting and exposure . 17
4.1 General service architecture . 18
4.2 5G Unicast Downlink Media Streaming Architecture . 19
4.2.1 Standalone - Non-Roaming . 19
4.2.2 UE 5GMSd Functions . 23
4.2.3 Service Access Information for Downlink Media Streaming . 25
4.3 5G Uplink Media Streaming Architecture . 27
4.3.1 Media Architecture . 27
4.3.2 UE Media Functions . 29
4.4 Network Slicing for Downlink Media Streaming . 31
4.5 5G Media Streaming architecture extensions for Edge Computing . 32
4.5.1 Introduction. 32
4.5.2 Extended 5GMS Architecture for Edge Computing . 32
4.5.3 Provisioning and Service Information . 33
4.5.4 Edge application context for 5GMS functions . 34
4.5.4.1 5GMS AF context . 34
4.5.4.2 5GMS AS context . 34
4.6 5G Downlink Media Streaming via eMBMS . 35
4.6.1 Architecture for 5G Downlink Media Streaming over eMBMS . 35
4.6.2 Usage of 5GMS reference points for eMBMS-based delivery . 36
4.6.2.1 Usage of M1d . 36
4.6.2.2 Usage of M2d . 36
4.6.2.3 Usage of M3d . 36
4.6.2.4 Usage of M4d . 36
4.6.2.5 Usage of M5d . 36
4.6.2.6 Usage of M6d . 37
4.6.2.7 Usage of M7d . 37
4.6.2.8 Usage of M8d . 37
4.6.3 Usage of MBMS reference points and interfaces . 37
4.6.3.1 Usage of xMB-C . 37
4.6.3.2 Usage of xMB-U . 37
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4.6.3.3 Usage of MBMS User Services and Delivery Methods . 37
4.6.3.4 Usage of MBMS-API-C . 37
4.6.3.5 Usage of MBMS-API-U . 37
4.7 Data collection, reporting and exposure for 5GMS . 38
4.7.1 Reference architecture instantiation . 38
4.7.2 UE data reporting for 5GMS. 39
4.7.2.1 UE data reporting procedures for downlink media streaming . 39
4.7.2.2 UE data reporting procedures for uplink media streaming . 39
4.7.3 UE data processing for 5GMS . 40
4.7.3.1 UE data processing procedures for downlink media streaming . 40
4.7.3.2 UE data processing procedures for uplink media streaming . 40
4.7.4 Event exposure of 5GMS UE data . 41
4.7.4.1 Event exposure of UE data for downlink media streaming . 41
4.7.4.2 Event exposure of UE data for uplink media streaming . 41
5 Procedures for Downlink Media Streaming . 42
5.1 General . 42
5.2 Baseline procedure for Unicast Downlink Media Streaming Session establishment . 44
5.2.1 General . 44
5.2.2 Progressive Download of On-Demand Content . 44
5.2.3 DASH Streaming . 46
5.3 Provisioning Session for Media Streaming . 47
5.3.1 Domain model . 47
5.3.2 Baseline provisioning procedure . 50
5.4 Content Hosting Configuration for Downlink Media Streaming . 52
5.4.1 General . 52
5.4.2 Media ingest procedure . 52
5.5 Metrics collection and reporting . 53
5.5.1 General . 53
5.5.2 RAN-based reporting procedure . 54
5.5.3 5GMSd AF-based reporting procedure . 56
5.5.4 Metrics reporting configuration parameters . 58
5.6 Consumption reporting . 59
5.6.1 Consumption reporting procedure . 59
5.6.2 Consumption reporting parameters . 60
5.6.3 Triggering consumption reporting . 61
5.7 Establishing a Unicast Downlink Media Streaming Session with 5GMSd AF interactions for dynamic
policy updates . 61
5.7.1 General . 61
5.7.2 Provisioning . 62
5.7.3 Progressive Download of On-Demand Content . 63
5.7.4 DASH Streaming . 66
5.7.5 Parameters for dynamic policy invocation configuration . 68
5.8 Dynamic Policy based on Network Slicing for Downlink Media Streaming . 69
5.8.1 Procedure . 69
5.9 Downlink Network Assistance . 70
5.9.1 Introduction. 70
5.9.2 5GMSd AF-based downlink Network Assistance . 70
5.9.3 ANBR-based downlink Network Assistance . 71
5.10 5GMS via eMBMS . 72
5.10.1 General . 72
5.10.2 Procedures for 5GMS content delivered exclusively via eMBMS . 72
5.10.3 5GMS Consumption Reporting procedures for eMBMS . 74
5.10.4 5GMS Metrics Reporting procedures for eMBMS . 76
5.10.5 Procedures for Hybrid Services: 5GMS content delivery via 5G System and eMBMS . 78
5.10.5.1 General . 78
5.10.5.2 Interactive service . 81
5.10.5.3 Session continuity . 81
5.10.5.4 Time-shifted viewing . 81
5.10.5.5 Content or component replacement . 81
5.10.6 Procedures for dynamic provisioning of 5GMS content delivery via eMBMS . 82
5.10.6.1 General . 82
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5.10.6.2 Operation modes . 85
5.11 Procedures for downlink media streaming data collection, reporting and exposure . 85
5.11.1 Configuration of 5GMSd AS data collection client for downlink media streaming access reporting . 85
5.11.2 Downlink media streaming access activity reporting by 5GMSd AS . 86
5.11.3 Downlink media streaming access event exposure . 86
5.11.4 Downlink media streaming access reporting parameters . 87
5.11.5 Triggering downlink media streaming access reporting . 87
6 Procedures for Uplink Media Streaming . 88
6.1 General . 88
6.2 Preparing for Uplink Media Streaming . 90
6.2.1 Introduction. 90
6.2.2 Sink Configuration at the 5GMSu AF/AS . 90
6.2.3 Source Configuration at the UE . 90
6.3 Establishment of an Uplink Media Streaming Session . 91
6.4 Termination of an Uplink Media Streaming Session . 92
6.5 Providing 5GMSu AF-based Network Assistance . 93
6.6 Providing Remote Control . 93
6.7 RAN Signalling based Support for Uplink Network Assistance . 94
6.8 Procedures for uplink media streaming data collection, reporting and exposure . 95
6.8.1 Configuration of 5GMSu AS data collection client for uplink media streaming access reporting . 95
6.8.2 Uplink media streaming access reporting by 5GMSu AS. 95
6.8.3 Uplink media streaming access event exposure . 96
6.8.4 Uplink media streaming access reporting parameters . 97
6.8.5 Triggering uplink media streaming access reporting . 97
7 5GMS Network Media Processing . 98
7.1 General . 98
7.2 Media Processing Procedures for Downlink . 98
7.3 Media Processing Procedures for Uplink . 99
8 Procedures for 5GMS Edge Processing . 101
8.1 Procedure for client-driven management of 5GMS Edge Processing . 101
8.2 Procedure for AF-driven management of 5GMS Edge Processing . 104
Annex A (informative): Usage Guidelines for collaboration scenarios . 106
A.0 General . 106
A.1 Collaboration 1 . 106
A.2 Collaboration 2 . 107
A.3 Collaboration 3 . 107
A.4 Collaboration 4 . 108
A.5 Collaboration 5 . 108
A.6 Collaboration 6 . 109
A.7 Collaboration 7 . 109
A.8 Collaboration 8 . 110
A.9 Collaboration 9 . 111
Annex B (informative): MNO-specific Service Access Information acquisition. 112
B.1 General . 112
B.2 Deployment with DNS-based resolution . 112
B.3 Deployment with HTTPS-based resolution. 114
Annex C (informative): Collaboration Models for 5GMS via eMBMS . 116
C.1 Introduction . 116
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C.2 Collaboration 5GMS-MBMS 1: 5GMS Content Provider uses different delivery networks . 116
C.3 Collaboration 5GMS-MBMS 2: 5GMS Network Operator offloads to 5G Broadcast Network
Operator . 117
C.4 Collaboration 5GMS-MBMS 3: 5GMS Service Operator includes MBMS network . 117
C.5 Collaboration 5GMS-MBMS 4: 5G Broadcast Service Provider offloads to 5G MNO . 118
Annex D (informative): Use Cases for 5GMS event exposure . 120
D.1 Introduction . 120
D.2 Controlling Event exposure . 120
D.2.1 Data exposure restrictions . 120
D.2.2 Event subscription filters . 120
D.3 QoE metrics for downlink media streaming . 120
D.4 Consumption of downlink media streaming. 120
D.5 Invocation of dynamic policies . 121
D.6 Invocation of AF-based Network Assistance . 121
D.7 Media streaming access activity . 122
D.7.1 Downlink media streaming access activity . 122
Annex E (informative): Change history . 123
History . 124

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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.
ETSI
3GPP TS 26.501 version 17.10.0 Release 17 8 ETSI TS 126 501 V17.10.0 (2024-07)
1 Scope
The present document specifies the 5G Media Streaming (5GMS) architecture. The 5GMS supported services include
MNO and third-party Downlink Media Streaming Services, and MNO and third-party Uplink Media Streaming
Services. The 5GMS architecture supports related network and UE functions and APIs, backwards compatible functions
for EUTRAN deployments (with and without MBMS) and 5G specific features.
NOTE: Support of 5G Media Streaming over MBMS with 5GC is not considered in the current version of the
present document.
The 5GMS architecture is functionally divided into independent components enabling different deployments with
various degrees of integration between 5G MNOs and Content Providers. It is specified as a set of extensions to
TS 23.501 "System Architecture for the 5G System".
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 (5GS)".
[3] 3GPP TS 23.502: "Procedures for the 5G System (5GS)".
[4] 3GPP TS 23.503: "Policy and charging control framework for the 5G System (5GS); Stage 2".
[5] 3GPP TS 26.238: "Uplink streaming".
[6] 3GPP TS 26.307: "Presentation layer for 3GPP services".
[7] 3GPP TS 26.247: "Transparent end-to-end Packet-switched Streaming Service (PSS); Progressive
Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH)".
[8] 3GPP TS 26.234: "Transparent end-to-end Packet-switched Streaming Service (PSS); Protocols
and codecs".
[9] 3GPP TS 23.003: "Technical Specification Group Core Network and Terminals; Numbering,
addressing and identification".
[10] 3GPP TS 28.530: "Management and orchestration; Concepts, use cases and requirements".
[11] 3GPP TS 28.531: "Management and orchestration; Provisioning".
[12] 3GPP TS 28.541: "Management and orchestration; 5G Network Resource Model (NRM); Stage 2
and stage 3".
[13] 3GPP TS 23.222: "Common API Framework for 3GPP Northbound APIs".
[14] IETF RFC 1034: "Domain names - concepts and facilities".
[15] 3GPP TS 23.548: "5G System Enhancements for Edge Computing; Stage 2".
[16] 3GPP TS 23.558: "Architecture for enabling Edge Applications".
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[17] 3GPP TS 28.538: "Management and orchestration; Edge Computing Management".
[18] 3GPP TS 23.246: "Multimedia Broadcast/Multicast Service (MBMS); Architecture and functional
description".
[19] 3GPP TS 26.346: "Multimedia Broadcast/Multicast Service (MBMS); Protocols and codecs".
[20] 3GPP TS 26.347: "Multimedia Broadcast/Multicast Service (MBMS); Application Programming
Interface and URL".
[21] 3GPP TS 26.348: "Northbound Application Programming Interface (API) for Multimedia
Broadcast/Multicast Service (MBMS) at the xMB reference point".
[22] 3GPP TS 26.531: "Data collection and reporting; General description and architecture".
[23] 3GPP TS 23.288: "Architecture enhancements for 5G System (5GS) to support network data
analytics services".
[24] 3GPP TS 27.007: "AT command set for User Equipment (UE)".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the terms given in 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 TR 21.905 [1].
5GMS System: An assembly of Application Functions, Application Servers and interfaces from the 5G Media
Streaming architecture that support either downlink media streaming services or uplink media streaming services, or
both.
NOTE 1: The components of a 5GMS System may be provided by an MNO as part of a 5GS and/or by a 5GMS
Application Provider.
5GMS Application Provider: A party that interacts with functions of the 5GMS System and supplies a 5GMS-Aware
Application that interacts with functions of the 5GMS System.
5GMS-Aware Application: Application in the UE, provided by the 5GMS Application Provider, that contains the
service logic of the 5GMS application service, and interacts with other 5GMS Client and Network functions via the
interfaces and APIs defined in the 5GMS architecture.
NOTE 2: Functionality of the 5GMS-Aware Application is outside the scope of this specification.
NOTE 3: A 5GMS-Aware Application associated with the delivery of either a downlink or uplink related 5GMS
service is referred to as a 5GMSd-Aware Application or a 5GMSu-Aware Application, respectively.
5GMS Client: A UE function that is either a 5GMSd Client or a 5GMSu Client, or both.
5G Media Streaming Client for downlink (5GMSd Client): UE function that includes at least a 5G Media Streaming
Player and a Media Session Handler for downlink streaming and that may be accessed through well-defined
interfaces/APIs.
5G Media Streaming Client for uplink (5GMSu Client): Originator of 5GMSu service that includes at least a Media
Streamer and a Media Session Handler for uplink streaming and that may be accessed through well-defined
interfaces/APIs.
5GMSu Media Streamer: UE function that enables uplink delivery of streaming media content to an Application
Server function of the 5GMS Application Provider, and which interacts with both the 5GMSu-Aware Application for
media capture and subsequent streaming, and the Media Session Handler for media session control.
NOTE 4: The 5GMSu Media Streamer receives a Media Streamer Entry to initiate an uplink streaming session.
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NOTE 5: The 5GMSu Media Streamer captures the media on the provided input devices. The 5GMSu Media
Streamer exposes some basic controls such as capture, pause, and stop to the 5GMSu-Aware Application.
Dynamic policy: A Dynamic PCC Rule (c.f. TS 23.503 [4]) for an uplink or downlink application flow during a media
session.
Egest Session: An uplink media streaming session from the 5GMSu AS towards the 5GMSu Application Provider.
Ingest Session: A session to upload the media content into a 5GMSd AS.
Policy Template: A collection of (semi-static) PCF/NEF API parameters which are specific to the 5GMS Application
Provider and also the resulting PCC Rule.
Policy Template Id: Identifies the desired policy template, which is used by 5GMSd AF to select the appropriate
PCF/NEF API towards the 5G System so that the PCF can compile the desired PCC Rule.
Media Entry Point: A Media Player Entry for downlink media streaming or a Media Streamer Entry for uplink media
streaming intended to be consumed by a 5GMS Media Stream Handler.
Media Player Entry: A document or a pointer to a document that defines a downlink media streaming presentation e.g.
MPD for DASH content or URL to a video clip file intended to be consumed by a 5GMSd Media Player.
Media Session Handler: UE function that communicates with the 5GMS AF in order to establish and control the
delivery of a streaming media session in the downlink or uplink direction, and which also exposes APIs to the 5GMS-
Aware Application and to the Media Player (for downlink streaming) or the Media Streamer (for uplink streaming).
Media Streamer Entry: A pointer (e.g. in the form of a URL) that defines an entry point of an uplink media streaming
session intended to be consumed by a 5GMSu Media Streamer.
media streaming session: A session initiated by a 5GMS-Aware Application that involves one or more media streams
being delivered between the 5GMS AS and the 5GMS Client via reference point M4.
presentation entry: A document or a pointer to a document that defines an application presentation e.g. an HTML5
document as defined in e.g. TS 26.307 [6].
Provisioning Session: A data structure supplied at interface M1 by a 5GMS Application Provider that configures the
5GMS features relevant to a set of 5GMS-Aware Applications.
5GMSd Media Player: UE function that enables playback and rendering of a media presentation based on a Media
Player Entry and exposing some basic controls such as play, pause, seek, stop to the 5GMSd-Aware Application.
NOTE 6: A 5GMSd Media Player is expected to include a Media Access Client, Media Decoders, Media
rendering/presentation, and possibly also a DRM Client a Consumption Measurement and Logging Client
and a Metrics Measurement and Logging Client. The 5GMSd Media Player's Media Access Client
receives a Media Player Entry. The 5GMSd Media Player renders the media on the provided output
devices, such as a display in case of video.
NOTE 7: The 5GMSd Media Player is functionally similar to the combination of a TS 26.247 [7] 3GP-DASH
client and a TS 26.234 [8] PSS media decoder and renderer.
Service Access Information: Set of parameters and addresses that are needed by a 5GMS Client to activate the
reception of a downlink media streaming session or the transmission on an uplink media streaming session, perform
dynamic policy invocation, consumption reporting and/or metrics reporting, and request AF-based network assistance.
Service and Content Discovery: Functionality and procedures provided by a 5GMSd Application Provider to a 5GMS-
Aware Applicat
...