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TECHNICAL SPECIFICATION
5G;
5G Media Streaming (5GMS);
General description and architecture
(3GPP TS 26.501 version 16.4.1 Release 16)
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3GPP TS 26.501 version 16.4.1 Release 16 1 ETSI TS 126 501 V16.4.1 (2020-09)
Reference
DTS/TSGS-0426501vg41
Keywords
5G
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3GPP TS 26.501 version 16.4.1 Release 16 2 ETSI TS 126 501 V16.4.1 (2020-09)
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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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 under .
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
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ETSI
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3GPP TS 26.501 version 16.4.1 Release 16 3 ETSI TS 126 501 V16.4.1 (2020-09)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 5
1 Scope . 6
2 References . 6
3 Definition of terms, symbols and abbreviations . 7
3.1 Terms . 7
3.2 Symbols . 8
3.3 Abbreviations . 9
4 Media Streaming General Service Architecture . 10
4.1 Overall Media Architecture . 10
4.2 5G Unicast Downlink Media Streaming Architecture . 12
4.2.1 Standalone – Non-Roaming . 12
4.2.2 UE 5GMSd Functions . 15
4.2.3 Service Access Information for Downlink Media Streaming . 17
4.3 5G Uplink Media Streaming Architecture . 18
4.3.1 Media Architecture . 18
4.3.2 UE Media Functions . 21
4.4 Network Slicing for Downlink Media Streaming . 22
5 Procedures for Downlink Media Streaming . 23
5.1 General . 23
5.2 Baseline procedure for Unicast Downlink Media Streaming Session establishment . 25
5.2.1 General . 25
5.2.2 Progressive Download of On-Demand Content . 25
5.2.3 DASH Streaming . 27
5.3 Provisioning Session for Media Streaming . 28
5.3.1 Domain model . 28
5.3.2 Baseline provisioning procedure . 30
5.4 Content Hosting Configuration for Downlink Media Streaming . 32
5.4.1 General . 32
5.4.2 Media ingest procedure . 33
5.5 Metrics collection and reporting . 34
5.5.1 General . 34
5.5.2 Out-of-band-controlled reporting procedure . 34
5.5.3 In-band-controlled reporting procedure . 36
5.5.4 Metrics collection configuration parameters . 37
5.6 Consumption reporting . 38
5.6.1 Consumption reporting procedure . 38
5.6.2 Consumption reporting parameters . 40
5.6.3 Triggering consumption reporting . 40
5.7 Establishing a Unicast Downlink Media Streaming Session with 5GMSd AF interactions for dynamic
policy updates . 40
5.7.1 General . 40
5.7.2 Provisioning . 41
5.7.3 Progressive Download of On-Demand Content . 42
5.7.4 DASH Streaming . 45
5.7.5 Parameters for dynamic policy invocation configuration . 47
5.8 Dynamic Policy based on Network Slicing for Downlink Media Streaming . 48
5.9 Downlink Network Assistance . 49
5.9.1 Introduction. 49
5.9.2 5GMSd AF-based downlink Network Assistance . 49
5.9.3 ANBR-based downlink Network Assistance . 50
ETSI
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3GPP TS 26.501 version 16.4.1 Release 16 4 ETSI TS 126 501 V16.4.1 (2020-09)
6 Procedures for Uplink Media Streaming . 51
6.1 General . 51
6.2 Preparing for Uplink Media Streaming . 53
6.2.1 Introduction. 53
6.2.2 Sink Configuration at the 5GMSu AF/AS . 53
6.2.3 Source Configuration at the UE . 53
6.3 Establishment of an Uplink Media Streaming Session . 55
6.4 Termination of an Uplink Media Streaming Session . 56
6.5 Providing 5GMSu AF-based Network Assistance . 57
6.6 Providing Remote Control . 57
6.7 RAN Signalling based Support for Uplink Network Assistance . 58
7 5GMS Network Media Processing . 59
7.1 General . 59
7.2 Media Processing Procedures for Downlink . 59
7.3 Media Processing Procedures for Uplink . 61
7.4 Edge Computing . 61
Annex A (informative): Usage Guidelines for collaboration scenarios . 62
A.0 General . 62
A.1 Collaboration 1 . 62
A.2 Collaboration 2 . 63
A.3 Collaboration 3 . 63
A.4 Collaboration 4 . 64
A.5 Collaboration 5 . 64
A.6 Collaboration 6 . 65
A.7 Collaboration 7 . 65
A.8 Collaboration 8 . 66
A.9 Collaboration 9 . 67
Annex B (informative): MNO-specific Service Access Information acquisition. 68
B.1 General . 68
B.2 Deployment with DNS-based resolution . 68
B.3 Deployment with HTTPS-based resolution . 70
Annex C (informative): Change history . 72
History . 73
ETSI
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3GPP TS 26.501 version 16.4.1 Release 16 5 ETSI TS 126 501 V16.4.1 (2020-09)
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
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3GPP TS 26.501 version 16.4.1 Release 16 6 ETSI TS 126 501 V16.4.1 (2020-09)
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".
ETSI
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3GPP TS 26.501 version 16.4.1 Release 16 7 ETSI TS 126 501 V16.4.1 (2020-09)
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 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.
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 Player Entry: a document or a pointer to a document that defines a media presentation e.g. MPD for DASH
content or URL to a video clip file.
Media Streamer Entry: A pointer (e.g. in the form of a URL) that defines an entry point of an uplink media streaming
session.
ETSI
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3GPP TS 26.501 version 16.4.1 Release 16 8 ETSI TS 126 501 V16.4.1 (2020-09)
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 M1d by a 5GMSd Application Provider that configures the
5GMSd features relevant to a set of 5GMSd-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 DRM Client and Metrics Collection and Reporting. 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 (including 5GMSd AF and 5GMSd AS addresses),
which are needed to activate the reception of a streaming session.
Service and Content Discovery: Functionality and procedures provided by a 5GMSd Application Provider to a 5GMS-
Aware Application that enables the end user to discover the available streaming service and content offerings and select
a specific service or content item for access.
NOTE 8: The Service and Content Discovery functionality and procedures are outside the scope of this
specification.
Service Announcement: Procedures conducted between the 5GMS-Aware Application and the 5GMS Application
Provider such that the 5GMS-Aware Application is able to obtain 5GMS Service Access Information, either directly or
in the form of a reference to that information.
third party player: Part of an application that uses APIs to exercise selected 5GMSd functions to play back media
content.
NOTE 9: Such APIs are for example defined in TS 26.307 [6] when using the Media Source Extensions for media
playback. This type of player is downloaded by or built into an application, or it is downloaded with the
Presentation Entry (e.g. as a JavaScript library).
third party uplink streamer: Part of an application that uses APIs to exercise selected 5GMSu functions to capture
and stream media content.
NOTE 10: This type of streamer is typically implemented as downloadable software.
3.2 Symbols
Void.
ETSI
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3GPP TS 26.501 version 16.4.1 Release 16 9 ETSI TS 126 501 V16.4.1 (2020-09)
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in 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
TR 21.905 [1].
5GC 5G Core Network
5GMS 5G Media Streaming
5GMSd 5G Media Streaming downlink
5GMSu 5G Media Streaming uplink
5GS 5G Systems
AF Application Function
ABR Adaptive Bit Rate
AMF Access and Mobility Function
API Application Programming Interface
App Application
AS Application Server
CAPIF Common API Framework
CDN Content Delivery Network
DASH Dynamic and Adaptive Streaming over HTTP
DN Data Network
DNAI Data Network Application Identifier
DNN Data Network Name
DRM Digital Rights Management
EPC Evolved Packet Core
EPS Evolved Packet System
EUTRAN Evolved Universal Terrestrial Radio Access Network
FLUS Framework for Live Uplink Streaming
FQDN Fully-Qualified Domain Name
GPU Graphics Processing Unit
GSM Global System for Mobile communication
HPLMN Home Public Land Mobile Network
HTTP HyperText Transfer Protocol
HTTPS HyperText Transfer Protocol Secure
LTE Long-Term Evolution
MBMS Multimedia Broadcast Multicast System
MNO Mobile Network Operator
MPD Media Presentation Description
MSISDN Mobile Station International Subscriber Directory Number
NA Network Assistance
NEF Network Exposure Function
NR New Radio
NSMF Network Slice M
...