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TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
LTE;
Multimedia Broadcast/Multicast Service (MBMS);
Protocols and codecs
(3GPP TS 26.346 version 15.2.0 Release 15)
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3GPP TS 26.346 version 15.2.0 Release 15 1 ETSI TS 126 346 V15.2.0 (2018-10)
Reference
RTS/TSGS-0426346vf20
Keywords
LTE,UMTS
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DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
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3GPP and LTE are trademarks of ETSI registered for the benefit of its Members and
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ETSI
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3GPP TS 26.346 version 15.2.0 Release 15 2 ETSI TS 126 346 V15.2.0 (2018-10)
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
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
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Foreword
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, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 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
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
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3GPP TS 26.346 version 15.2.0 Release 15 3 ETSI TS 126 346 V15.2.0 (2018-10)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 13
Introduction . 13
1 Scope . 14
2 References . 14
3 Definitions and abbreviations . 20
3.1 Definitions . 20
3.2 Abbreviations . 21
4 MBMS system description . 22
4.1 MBMS functional layers . 22
4.2 MBMS User Service Entities . 23
4.3 MBMS bearer service architecture . 24
4.4 Functional Entities to support MBMS User Services . 24
4.4.1 MBMS User Service Architecture . 24
4.4.1a Content Provider / Multicast Broadcast Source . 27
4.4.1b Group Communication Service Application Server (GCS AS) . 27
4.4.2 MBMS Key Management Function . 27
4.4.3 MBMS Session and Transmission Function . 27
4.4.4 User Service Discovery / Announcement function . 28
4.4.5 Interactive Announcement Function . 28
4.4.6 MBMS UE . 28
4.5 Usage of identity of MBMS session . 28
4.6 Time Synchronization between the BM-SC and MBMS UEs . 29
5 Procedures and protocols. 30
5.1 Introduction . 30
5.2 User Service Discovery/Announcement . 30
5.2.1 Introduction. 30
5.2.2 MBMS User Service Description Metadata Fragments . 30
5.2.2.1 Introduction . 30
5.2.2.2 Session Description . 33
5.2.2.3 Associated Delivery Procedure Description . 33
5.2.2.3A Consumption Reporting Description . 33
5.2.2.4 Security Description . 34
5.2.2.5 FEC Repair Stream Description . 34
5.2.2.6 Media Presentation Description . 34
5.2.2.7 Schedule Description . 34
5.2.2.8 Filter Description . 35
5.2.2.9 Application Service Description . 35
5.2.3 User Service Announcement over a MBMS bearer . 36
5.2.3.1 General . 36
5.2.3.1.1 Service Announcement for Receive-Only-Mode Services . 36
5.2.3.1.2 Service Announcement for non Receive-Only-Mode Services . 37
5.2.3.2 Metadata Envelope Transport . 37
5.2.3.3 Metadata Envelope and Metadata Fragment Association with FLUTE . 37
5.2.4 User Service Announcement using Interactive Announcement Function . 37
5.2.5 User Service Announcement over point-to-point push bearers. 38
5.2.5.1 General . 38
5.2.5.2 Supported Metadata Syntaxes . 38
5.2.5.3 Consistency Control and Syntax Independence . 38
5.2.5.4 Metadata Envelope Definition . 38
5.2.5.5 Delivery of the Metadata Envelope . 38
ETSI
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3GPP TS 26.346 version 15.2.0 Release 15 4 ETSI TS 126 346 V15.2.0 (2018-10)
5.2.5.6 Void. 39
5.2.5.7 User service announcement over SMS bearers . 39
5.2.5.8 User service announcement over HTTP push bearers . 39
5.2.6 Metadata Fragment Encapsulation to aggregate Service Announcement Documents . 39
5.2.7 Registration and Deregistration Procedure for MBMS User Service Consumption . 39
5.3 User Service Initiation/Termination . 40
5.3.1 Initiation of MBMS Bearer Service based Services . 40
5.3.2 Termination of MBMS Bearer Service based Services . 41
5.3.3 Initiation of Unicast Bearer Service based Services . 41
5.3.4 Termination of Unicast Bearer Service based Services . 42
5.3.5 Scalable Service Initiation and Termination for MBMS Services . 42
5.3.5.1 General . 42
5.3.5.2 Randomization of Service Initiation over Time . 42
5.3.5.3 Randomization of Service Termination over Time . 43
5.4 MBMS Data Transfer Procedure . 43
5.4.1 MBMS Data Transfer Procedure using MBMS Bearer Services . 43
5.4.2 MBMS Data Transfer Procedure using other UMTS Bearer Services . 44
5.4A Procedures between Content Provider and BM-SC . 44
5.4A.1 General . 44
5.4A.2 xMB reference point . 45
5.4A.3 Authentication and Authorization . 45
5.4A.3.1 Introduction . 45
5.4A.3.2 Authentication Procedure . 45
5.4A.3.3 Authorization Procedure . 46
5.4A.4 Service Management Procedures . 47
5.4A.4.1 Introduction . 47
5.4A.4.2 Create Service . 47
5.4A.4.3 Get Service Properties . 47
5.4A.4.4 Update Service Properties . 48
5.4A.4.5 Terminate a Service. 48
5.4A.4.6 Service Notifications . 49
5.4A.4.7 List of Service Properties . 49
5.4A.5 Session Management Procedures . 52
5.4A.5.1 Introduction . 52
5.4A.5.2 Create Session . 53
5.4A.5.3 Get Session Properties. 53
5.4A.5.4 Update Session Properties . 53
5.4A.5.5 Terminate a Session . 54
5.4A.5.6 Session Properties . 54
5.4A.6 User Plane Procedures . 65
5.4A.6.1 Introduction . 65
5.4A.6.2 File Distribution . 65
5.4A.6.3 RTP Streaming . 66
5.4A.6.4 Transport . 66
5.4A.6.5 Notification Messages . 66
5.5 MBMS Protocols . 67
5.6 3GP-DASH and MBMS . 68
5.7 Generic Application Service. 69
6 Introduction on Delivery Methods . 70
7 Download Delivery Method . 70
7.1 Introduction . 70
7.2 FLUTE usage for MBMS download . 71
7.2.0 General . 71
7.2.1 Fragmentation of Files . 72
7.2.2 Symbol Encoding Algorithm . 72
7.2.3 Blocking Algorithm . 72
7.2.4 Congestion Control . 72
7.2.5 Content Encoding of Files for Transport . 72
7.2.6 Transport File Grouping . 72
7.2.7 Signalling of Parameters with Basic ALC/FLUTE Headers . 73
ETSI
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3GPP TS 26.346 version 15.2.0 Release 15 5 ETSI TS 126 346 V15.2.0 (2018-10)
7.2.8 Signalling of Parameters with FLUTE Extension Headers . 73
7.2.9 Signalling of Parameters with FDT Instances . 73
7.2.10 FDT Schema . 75
7.2.10.1 Extended FLUTE FDT Schema . 75
7.2.10.2 3GPP FDT Extension Type Schema . 76
7.2.10.3 IETF FDT Schema . 77
7.2.10.4 Example of FDT . 78
7.2.10.5 3GPP FDT Extensions . 79
7.2.10.6 FEC Redundancy Level Extension . 79
7.2.11 MBMS Session Identity . 79
7.2.12 FEC Scheme definition . 79
7.2.12.1 General . 79
7.2.13 Caching Directives . 80
7.2.14 Indicating a full FDT snapshot . 80
7.2.15 Decryption key indicating of protected download data . 81
7.3 SDP for Download Delivery Method . 81
7.3.1 Introduction. 81
7.3.2 SDP Parameters for MBMS download session . 81
7.3.2.1 Sender IP address . 82
7.3.2.2 Number of channels . 82
7.3.2.3 Destination IP address and port number for channels . 82
7.3.2.4 Transport Session Identifier (TSI) of the session . 82
7.3.2.5 Multiple objects transport indication . 82
7.3.2.6 Session Timing Parameters . 83
7.3.2.7 Mode of MBMS bearer per media . 83
7.3.2.8 FEC capabilities and related parameters . 83
7.3.2.9 Service-language(s) per media . 84
7.3.2.10 Bandwidth Specification . 84
7.3.2.11 FEC Redundancy Level . 84
7.3.2.12 Alternative TMGI . 84
7.3.3 SDP Examples for FLUTE Session . 85
7.4 OMA Push usage for MBMS Download . 86
7.4.1 Introduction. 86
7.4.2 HTTP registration and deregistration procedure . 86
7.4.3 MBMS Download Delivery Method over OMA push bearers . 87
7.5 FLUTE session setup and control with RTSP . 87
7.5.1 Introduction. 87
7.5.2 SDP handling . 88
7.5.3 RTSP SETUP Method . 88
7.5.4 RTSP PLAY Method . 88
7.5.5 RTSP PAUSE Method . 88
7.5.6 RTSP TEARDOWN Method . 88
7.6 Hybrid Service Offerings for DASH-over-MBMS User Service and Generic Application Service . 88
7.6.1 Introduction . 88
7.6.2 Extension of the deliveryMethod element . 89
7.6.2.1 Broadcast Resource Specific Metadata . 89
7.6.2.2 Redundant Unicast Resource Specific Metadata . 89
7.6.2.2A Supplementary Unicast Resource Specific Metadata . 90
7.6.2.3 Additional Points .
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