ETSI TS 126 247 V17.2.0 (2023-01)

Universal Mobile Telecommunications System (UMTS); LTE; Transparent end-to-end Packet-switched Streaming Service (PSS); Progressive Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH) (3GPP TS 26.247 version 17.2.0 Release 17)

RTS/TSGS-0426247vh20

General Information

• Status: Not Published
• Technical Committee: 3GPP SA 4 - Codec
• Current Stage: 12 - Citation in the OJ (auto-insert)
• Completion Date: 10-Jan-2023

Standards Content (Sample)

ETSI TS 126 247 V17.2.0 (2023-01)






TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
LTE;
Transparent end-to-end
Packet-switched Streaming Service (PSS);
Progressive Download and Dynamic
Adaptive Streaming over HTTP (3GP-DASH)
(3GPP TS 26.247 version 17.2.0 Release 17)

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3GPP TS 26.247 version 17.2.0 Release 17 1 ETSI TS 126 247 V17.2.0 (2023-01)

Reference
RTS/TSGS-0426247vh20
Keywords
LTE,UMTS
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All rights reserved.

ETSI

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3GPP TS 26.247 version 17.2.0 Release 17 2 ETSI TS 126 247 V17.2.0 (2023-01)
Intellectual Property Rights
Essential patents
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not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its

Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP
Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the
®
oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.
Legal Notice
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Modal verbs terminology
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"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 26.247 version 17.2.0 Release 17 3 ETSI TS 126 247 V17.2.0 (2023-01)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 9
Introduction . 9
1 Scope . 10
2 References . 10
3 Definitions and abbreviations . 13
3.1 Definitions . 13
3.2 Abbreviations . 13
3.3 Conventions . 14
4 Overview . 14
5 System Description . 14
5.1 Overview . 14
5.2 Service Access . 16
5.3 Protocols . 16
5.3.1 General . 16
5.3.2 Partial File Handling . 17
6 Progressive Download over HTTP . 17
6.1 General . 17
6.2 Progressive Download . 17
6.3 3GPP File Format Profiles . 17
7 3GPP Dynamic Adaptive Streaming over HTTP . 18
7.1 System Description. 18
7.2 3GP-DASH Client Model . 19
7.3 3GP-DASH Profiles . 19
7.3.1 General . 19
7.3.2 3GPP Adaptive HTTP Streaming (Release-9 AHS) . 19
7.3.3 3GP-DASH Release-10 Profile. 20
7.3.3.1 Introduction . 20
7.3.4 3GP-DASH Release 11 multiview stereoscopic 3D video profile . 20
7.3.5 3GP-DASH Release 11 frame-packed stereoscopic 3D video profile . 20
7.3.6 Media Codecs . 21
7.3.7 Content Protection . 21
7.3.8 Partial File Handling . 21
7.3.9 3GP-DASH Enhanced Interoperability Point . 21
7.3.10 DASH in TeleVision (TV) over 3GPP Services . 23
7.3.11 5G Media Streaming DASH Interoperability Point . 23
8 DASH - Media Presentation . 24
8.1 Introduction . 24
8.2 Media Presentation Description . 24
8.2.1 General . 24
8.2.2 Schema and 3GPP Extension . 25
8.2.3 (void) . 26
8.2.4 (void) . 26
8.3 MPD Assembly . 26
8.4 Hierarchical Data Model . 26
8.4.1 General . 26
8.4.2 Period . 27
8.4.2.1 General . 27
8.4.2.2 Content Offering with Multiple Periods . 27
ETSI

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3GPP TS 26.247 version 17.2.0 Release 17 4 ETSI TS 126 247 V17.2.0 (2023-01)
8.4.3 Adaptation Sets and Representations . 28
8.4.3.1 Overview . 28
8.4.3.2 Common Attributes and Elements . 28
8.4.3.3 Adaptation Set . 29
8.4.3.4 Representation . 30
8.4.3.5 Sub-Representation . 31
8.4.3.6 Content Component . 31
8.4.4 Segments and Segment Information . 32
8.5 MPD Update . 33
8.5.1 General . 33
8.5.2 Media Presentation Description Delta . 33
8.6 Additional Media Presentation Information . 34
8.6.1 Introduction. 34
8.6.2 Program Information. 34
8.6.3 Descriptors . 34
8.7 Base URL Processing . 35
8.8 Event Streams . 35
9 DASH - Usage of 3GPP File Format . 36
9.1 Introduction . 36
9.2 Segment Types and Formats . 36
9.2.1 Introduction. 36
9.2.2 Initialization Segment . 36
9.2.3 Media Segment . 36
9.2.3.1 General . 36
9.2.3.2 Subsegments and Segment Index . 36
9.2.3.3 Subsegment Index . 36
9.2.3.4 3GP-DASH Media Segment Format . 37
9.2.4 Self-Initializing Media Segment . 37
9.2.5 Media Stream and Segment Properties . 37
9.2.5.1 Media Stream Access Points . 37
9.2.5.2 Non-overlapping Segments and Subsegments . 37
9.2.5.3 Bitstream concatenation . 37
9.3 Usage on Server and Client . 37
9.4 Segment Properties with MPD constraints . 37
9.4.1 General . 37
9.4.1.1 Introduction . 37
9.4.1.2 Media Presentation Timeline . 37
9.4.1.3 Segment Index . 38
9.4.2 Segment Alignment . 38
9.4.3 Bitstream Switching . 38
9.4.4 Sub-Representation . 38
10 QoE for Progressive Download and DASH . 38
10.1 General . 38
10.2 QoE Metric Definitions . 39
10.2.1 Introduction. 39
10.2.2 Void . 39
10.2.3 Representation Switch Events. 39
10.2.4 Average Throughput . 39
10.2.5 Initial Playout Delay . 40
10.2.6 Buffer Level . 40
10.2.7 Play List . 40
10.2.8 MPD Information . 42
10.2.9 Playout Delay for Media Start-up . 43
10.2.10 Device information . 43
10.3 Quality Metrics for Progressive Download . 44
10.4 Quality Metrics for DASH . 44
10.5 Quality Reporting Scheme for DASH . 45
10.6 Quality Reporting Protocol. 48
10.6.1 General . 48
10.6.2 Report Format . 48
ETSI

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3GPP TS 26.247 version 17.2.0 Release 17 5 ETSI TS 126 247 V17.2.0 (2023-01)
10.6.3 Reporting Protocols . 52
11 Live Services . 53
11.1 Overview Dynamic and Live Media Presentations . 53
11.2 Dynamic Segment Download . 54
11.2.1 Background and Assumptions . 54
11.2.2 MPD Information and Timing Model . 54
11.2.2.1 MPD Information . 54
11.2.2.2 Segment Information Derivation . 55
11.2.2.2.1 Introduction . 55
11.2.2.2.2 Definitions . 55
11.2.2.2.3 MPD Information . 56
11.2.2.2.4 Period Information . 56
11.2.2.2.5 Representation Information . 56
11.2.2.2.6 Media Time Information of Segment . 57
11.2.2.2.7 Segment List Parameters . 57
11.2.2.2.8 URL Generation with Segment Template . 58
11.2.3 Service Offering Requirements and Guidelines . 58
11.2.3.1 General Service Offering Requirements . 58
11.2.3.2 Dynamic Service Offering Guidelines . 59
11.2.3.2.1 Introduction . 59
11.2.3.2.2 Basic Parameter Settings . 60
11.2.3.3 Content Offering with Periods . 61
11.2.3.3.1 General . 61
11.2.3.4 Joining Recommendation . 63
11.2.4 Client Operation, Recommendations and Guidelines (informative) . 63
11.2.4.1 Basic Operation . 63
11.2.4.2 Joining, Initial Buffering and Playout Recommendations. 65
11.2.4.2.1 General . 65
11.2.4.2.2 Joining at the live edge . 65
11.2.5 Considerations on live edge) . 66
11.3 Live Services with MPD Updates . 66
11.3.1 Background and Assumptions . 66
11.3.2 Preliminaries . 67
11.3.2.1 MPD Information .
...