ETSI TS 126 512 V19.2.0 (2026-04)

5G; 5G Media Streaming (5GMS); Protocols (3GPP TS 26.512 version 19.2.0 Release 19)

RTS/TSGS-0426512vj20

General Information

• Status: Not Published
• Technical Committee: 3GPP SA 4 - Codec
• Current Stage: 12 - Citation in the OJ (auto-insert)
• Completion Date: 08-Apr-2026

Standards Content (Sample)

TECHNICAL SPECIFICATION
5G;
5G Media Streaming (5GMS);
Protocols
(3GPP TS 26.512 version 19.2.0 Release 19)


3GPP TS 26.512 version 19.2.0 Release 19 1 ETSI TS 126 512 V19.2.0 (2026-04)

Reference
RTS/TSGS-0426512vj20
Keywords
5G
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ETSI
3GPP TS 26.512 version 19.2.0 Release 19 2 ETSI TS 126 512 V19.2.0 (2026-04)
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ETSI
3GPP TS 26.512 version 19.2.0 Release 19 3 ETSI TS 126 512 V19.2.0 (2026-04)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 14
1 Scope . 16
2 References . 16
3 Definitions of terms, symbols and abbreviations . 19
3.1 Terms . 19
3.3 Abbreviations . 19
4 Procedures for Downlink Media Streaming . 20
4.1 General . 20
4.2 APIs relevant to downlink media streaming . 21
4.3 Procedures of the M1 (5GMS Provisioning) interface . 22
4.3.1 General . 22
4.3.2 Provisioning Session procedures . 23
4.3.2.1 General . 23
4.3.2.2 Void. 23
4.3.2.3 Void. 23
4.3.2.4 Void. 23
4.3.2.5 Void. 23
4.3.3 Content Hosting provisioning procedures. 23
4.3.3.1 General . 23
4.3.3.2 Void. 23
4.3.3.3 Void. 23
4.3.3.4 Void. 23
4.3.3.5 Void. 23
4.3.3.6 Void. 23
4.3.3A Content Publishing provisioning procedures . 23
4.3.3A.1 General . 23
4.3.4 Content Protocols Discovery procedures . 24
4.3.4.1 General . 24
4.3.4.2 Void. 24
4.3.4.3 Void. 24
4.3.4.4 Void. 24
4.3.4.5 Void. 24
4.3.5 Content Preparation Template provisioning procedures . 24
4.3.5.1 General . 24
4.3.5.2 Void. 24
4.3.5.3 Void. 24
4.3.5.4 Void. 24
4.3.5.5 Void. 24
4.3.6 Server Certificate provisioning procedures . 24
4.3.6.1 General . 24
4.3.6.2 Void. 25
4.3.6.3 Void. 25
4.3.6.4 Void. 25
4.3.6.5 Void. 25
4.3.6.6 Void. 25
4.3.6.7 Void. 25
4.3.7 Dynamic Policy provisioning procedures . 26
4.3.7.1 General . 26
4.3.7.2 Void. 26
4.3.7.3 Void. 26
4.3.7.4 Void. 26
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4.3.7.5 Void. 26
4.3.8 Consumption Reporting Configuration provisioning procedures . 26
4.3.8.1 General . 26
4.3.8.2 Void. 26
4.3.8.3 Void. 26
4.3.8.4 Void. 26
4.3.8.5 Void. 26
4.3.9 Metrics Reporting provisioning procedures . 26
4.3.9.1 General . 26
4.3.9.2 Void. 26
4.3.9.3 Void. 26
4.3.9.4 Void. 26
4.3.9.5 Void. 26
4.3.10 Edge Resources provisioning procedures . 27
4.3.10.1 General . 27
4.3.10.2 Void. 27
4.3.10.3 Void. 27
4.3.10.4 Void. 27
4.3.10.5 Void. 27
4.3.11 Event Data Processing provisioning procedures . 27
4.3.11.1 General . 27
4.3.11.2 Void. 27
4.3.11.3 Void. 27
4.3.11.3A Void. 27
4.3.11.4 Void. 27
4.4 Procedures of the M2d (5GMS content ingest) interface . 27
4.5 Procedures of the M3d interface . 28
4.5.1 General . 28
4.5.2 Server Certificate configuration procedures . 28
4.5.2.1 General . 28
4.5.2.2 Enumerate Server Certificates collection . 28
4.5.2.3 Create Server Certificate . 28
4.5.2.4 Retrieve Server Certificate . 28
4.5.2.5 Update Server Certificate . 28
4.5.2.6 Destroy Server Certificate . 29
4.5.3 Content Preparation Template configuration procedures . 29
4.5.3.1 General . 29
4.5.3.2 Enumerate Content Preparation Templates collection . 29
4.5.3.3 Create Content Preparation Template . 29
4.5.3.4 Retrieve Content Preparation Template . 30
4.5.3.5 Update Content Preparation Template . 30
4.5.3.6 Destroy Content Preparation Template . 30
4.5.4 Content Hosting Configuration procedures . 30
4.5.4.1 General . 30
4.5.4.2 Enumerate Content Hosting Configurations collection . 31
4.5.4.3 Create Content Hosting Configuration . 31
4.5.4.4 Retrieve Content Hosting Configuration . 31
4.5.4.5 Update Content Hosting Configuration . 31
4.5.4.6 Destroy Content Hosting Configuration. 32
4.5.4.7 (De)activate Content Hosting Configuration . 32
4.5.4.8 Interrogate Content Hosting Configuration state . 32
4.5.4.9 Purge Content Hosting cache . 32
4.5.5 Content Publishing Configuration procedures . 33
4.5.5.1 General . 33
4.5.5.2 Enumerate Content Publishing Configurations collection . 33
4.5.5.3 Create Content Publishing Configuration . 33
4.5.5.4 Retrieve Content Publishing Configuration . 34
4.5.5.5 Update Content Publishing Configuration . 34
4.5.5.6 Destroy Content Publishing Configuration . 34
4.5.5.7 (De)activate Content Publishing Configuration . 34
4.5.5.8 Interrogate Content Publishing Configuration state . 35
4.5.5.9 Purge Content Publishing cache . 35
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4.5.6 Service Access Information procedures . 35
4.5.7 Dynamic policy invocation procedures. 36
4.5.8 Consumption reporting procedures . 36
4.5.9 Metrics reporting procedures . 36
4.5.10 Network Assistance procedures . 36
4.6 Procedures of the M4d (Media Streaming) interface. 36
4.6.0 General . 36
4.6.0.1 ECN marking for L4S . 36
4.6.1 Procedures for DASH session . 36
4.6.2 Procedures for Progressive Download Session . 37
4.6.3 Procedures for using multiple service locations. 37
4.7 Procedures of the M5 (Media Session Handling) interface . 38
4.7.1 Introduction. 38
4.7.2 Procedures for Service Access Information . 38
4.7.2.1 General . 38
4.7.2.2 Void. 39
4.7.2.3 Void. 39
4.7.2.4 Void. 39
4.7.2.5 Void. 39
4.7.3 Procedures for dynamic policy invocation . 39
4.7.4 Procedures for consumption reporting . 40
4.7.5 Procedures for metrics reporting . 40
4.7.6 Procedures for network assistance . 40
4.8 Procedures of the M6d (UE Media Session Handling) interface . 41
4.8.1 General . 41
4.8.2 Consumption reporting procedures . 41
4.8.3 3GPP Service URL handling procedures . 41
4.8.3.1 Launch of 5G Media Streaming session . 41
4.8.3.2 Retrieval of Service Access Information from 5GMS AF . 41
4.8.3.3 Processing of 5GMS-specific parameters in 3GPP Service URL . 42
4.8.3.4 Responding to the requesting application . 42
4.9 Procedures of the M7d/M11d (UE Media Player) interface . 43
4.9.1 General . 43
4.9.1A Procedures for configuring downlink content delivery . 43
4.9.2 Metrics reporting procedures . 43
4.9.3 Dynamic Policy procedures . 44
4.10 Procedures of the M8d interface . 44
4.10A Procedures of the M10d interface . 44
4.10B Procedures of the M13d interface . 44
4.11 Data collection and reporting procedures at reference point R4 . 44
4.11.1 General . 44
4.11.2 5GMS AS data collection and reporting client configuration . 44
4.11.3 5GMS AS data reporting . 45
4.11A Data collection and reporting procedures at reference point R2 . 45
4.11A.1 General . 45
4.11A.2 Data collection and reporting client configuration . 45
4.11A.3 ANBR-based Network Assistance invocation reporting . 46
4.12 Event Exposure procedures at reference points R5 and R6 . 46
4.12.1 General . 46
4.12.2 Event Exposure subscription procedure . 47
4.12.3 Event Exposure unsubscription procedure . 47
4.12.4 Event Exposure notification procedure . 47
4.13 Procedures for downlink media streaming via eMBMS . 47
4.14 Procedures for downlink media streaming via MBS . 48
5 Procedures for Uplink Media streaming . 49
5.1 General . 49
5.2 APIs relevant to Uplink Media Streaming . 50
5.3 Procedures of the M1u (5GMSu Provisioning) interface . 50
5.4 Procedures of the M2u (5GMSu content egest) interface . 51
5.5 Procedures of the M3u interface . 51
5.6 Procedures of the M4u (Media Streaming) interface. 51
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5.6.1 General . 51
5.6.2 ECN marking for L4S . 51
5.7 Procedures of the M5u (Media Session Handling) interface . 51
5.8 Procedures of the M6u (UE Media Session Handling) interface . 51
5.9 Procedures of the M7u/M11u (UE Media Streamer) interface . 51
5.9.1 General . 51
5.9.2 Procedures for configuring uplink content delivery . 52
5.10 Procedures of the M8u interface . 52
6 General aspects of APIs for 5G Media Streaming . 52
6.0 HTTP endpoint addresses . 52
6.0.1 Default 5GMS AF endpoint addresses. 52
6.0.1.1 Default 5GMS AF endpoint address at reference point M1 . 52
6.0.1.2 Default 5GMS AF endpoint address at reference point M3 . 52
6.0.1.3 Default 5GMS AF endpoint address at reference point M5 . 52
6.0.2 Default 5GMS AS endpoint addresses. 53
6.0.2.1 Default 5GMS AS endpoint address at reference point M3 . 53
6.0.2.2 Canonical 5GMS AS authority at reference point M4 . 53
6.1 HTTP resource URIs . 54
6.1.1 5GMS AF resource URIs . 54
6.1.2 5GMS AS resource URIs . 54
6.2 Usage of HTTP . 54
6.2.1 HTTP protocol version . 54
6.2.1.1 5GMS AF . 54
6.2.1.2 5GMS AS . 54
6.2.2 HTTP message bodies for API resources . 55
6.2.3 Usage of HTTP headers . 55
6.2.3.1 General . 55
6.2.3.2 User Agent identification . 55
6.2.3.2.1 Media Stream Handler identification. 55
6.2.3.2.2 Media Session Handler identification . 55
6.2.3.3 Server identification . 56
6.2.3.3.1 5GMS AF identification . 56
6.2.3.4 Support for conditional HTTP GET requests . 56
6.2.3.5 Support for conditional HTTP POST, PUT, PATCH and DELETE requests . 56
6.2.3.6 Media delivery session identifier . 56
6.3 HTTP response codes . 56
6.4 Common API data types . 57
6.4.1 General . 57
6.4.2 Simple data types . 57
6.4.3 Structured data types . 58
6.4.3.1 Void. 58
6.4.3.2 Void. 58
6.4.3.3 Void. 58
6.4.3.4 Void. 58
6.4.3.5 Void. 58
6.4.3.6 Void. 58
6.4.3.7 Void. 58
6.4.3.8 Void. 58
6.4.3.9 Void. 58
6.4.3.9A MediaStreamingBaseReportingRecord type . 58
6.4.3.10 MediaStreamingSessionIdentification type . 58
6.4.3.11 MediaStreamingAccess type . 58
6.4.3.12 NetworkAssistanceInvocation type . 60
6.4.3.13 Void. 60
6.4.4 Enumerated data types . 60
6.4.4.1 Void. 60
6.4.4.2 Void. 60
6.4.4.3 Void. 60
6.4.4.4 Void. 60
6.4.4.5 CacheStatus enumeration . 60
6.5 Void . 60
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6.6 Security . 61
6.6.1 General . 61
6.6.2 Authorising 5GMS Application Provider access to the 5GMS AF at reference point M1 . 61
6.6.3 Authorising 5GMS AF access to the 5GMS AS at reference point M3 . 61
6.6.4 Authorising Media Session Handler access to the 5GMS AF at reference point M
...