1、 ETSI TR 126 946 V15.0.1 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Multimedia Broadcast/Multicast Service (MBMS) user service guidelines (3GPP TR 26.946 version 15.0.1 Release15) TECHNICAL REPORT ETSI ETSI TR 126 94
2、6 V15.0.1 (2018-07)13GPP TR 26.946 version 15.0.1 Release15Reference RTR/TSGS-0426946vf01 Keywords GSM,LTE,UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregi
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9、ssociation. ETSI ETSI TR 126 946 V15.0.1 (2018-07)23GPP TR 26.946 version 15.0.1 Release15Intellectual 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 pu
10、blicly 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 ET
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12、r may become, essential to the present document. Trademarks The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no right to
13、use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Report (TR) has been produced by ETSI 3rd Generation Partne
14、rship 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 ide
15、ntities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “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 expr
16、ession of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TR 126 946 V15.0.1 (2018-07)33GPP TR 26.946 version 15.0.1 Release15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g3Introdu
17、ction 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 8g34 Overview 9g34.1 Phasing model 9g34.2 System overview 9g35 Description of User Service procedures . 11g35.1 User Service Discovery / Announcement . 11g35.2 User Service Initiation / te
18、rmination procedure 11g35.3 Session Start / Stop . 12g35.4 Data transmission . 12g35.5 Associated-Delivery procedures . 12g35.5.1 File Repair service 12g35.5.2 Content reception reporting 12g36 Delivery methods . 12g36.1 Download delivery method 12g36.1.1 SDL diagram of the download delivery method
19、for the MBMS UE 14g36.1.2 Transport of MBMS download data . 16g36.1.3 Repair Symbol Request 18g36.1.3.1 Option 1: Determination of a minimum set of source symbols for repair . 18g36.1.3.2 Option 2: Determination of a sufficient set of consecutive encoding symbols for repair . 19g36.1.3.3 Maximum Gau
20、ssian elimination . 19g36.1.4 On choosing the SDU size 20g36.1.4.1 Analysis . 21g36.2 Streaming delivery method. 21g37 Usage scenarios 21g37.1 Service Discovery/Announcement . 21g37.2 MBMS download delivery method 23g37.2.1 Example: Video clip download service use-case 23g37.2.1.1 Use-case descripti
21、on 23g37.2.1.2 Announced Metadata Fragments . 23g37.2.1.3 Reception of a video clip . 24g37.2.1.4 File Repair procedure 26g37.2.2 The usage of the MBMS session Identity in file download delivery 28g37.2.2.1 Introduction . 28g37.2.2.2 Example 1: Usage of the Session ID to detect repetition 29g37.2.2.
22、3 Example 2: Declaration of files of a different MBMS bearer session in the FDT 30g37.2.2.4 Example 3: Declaration of files of an MBMS bearer session in several FDT Instances . 30g37.2.3 Partial File Delivery from MBMS Receiver to DASH Client 31g37.2.4 Communication between MBMS Client and DASH Clie
23、nt 31g37.3 MBMS streaming delivery method 31g38 Codecs and formats 32g3Annex A: MBMS Forward Error Correction performance. 33g3ETSI ETSI TR 126 946 V15.0.1 (2018-07)43GPP TR 26.946 version 15.0.1 Release15A.1 Theoretical performance . 33g3A.2 Simulation results . 33g3A.2.1 Simulation conditions and
24、assumptions (UTRAN) 34g3A.2.2 Simulation conditions and assumptions (GERAN) 35g3A.2.3 Simulation results: UTRAN download. 36g3A.2.4 Simulation results UTRAN streaming 37g3A.2.5 Simulation results GERAN download 37g3A.2.6 Simulation results GERAN streaming 38g3Annex B: Change history 39g3History 40g3
25、ETSI ETSI TR 126 946 V15.0.1 (2018-07)53GPP TR 26.946 version 15.0.1 Release15Foreword This Technical Report 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 appr
26、oval. 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
27、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. Introduction M
28、BMS user services can be built on top of the MBMS bearer service. The present document describes the usage of the two delivery methods, which are defined in 6. The two delivery methods are streaming and download. Examples of applications using the download delivery method are news and software upgra
29、des. Delivery of live music is an example of an application using the streaming delivery method. The objective of the present document is to provide an overview of the MBMS System, and describes how the MBMS User Services use the MBMS Bearer Services. ETSI ETSI TR 126 946 V15.0.1 (2018-07)63GPP TR 2
30、6.946 version 15.0.1 Release151 Scope The present document is only informative. In case there are any contradiction between the present document and 26.346, then the 3GPP TS 26.346 takes precedence. 2 References The following documents contain provisions which, through reference in this text, consti
31、tute 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
32、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 22.146: “Multimedia Broadcast/Multicast Servi
33、ce (MBMS); Stage 1“. 3 3GPP TS 22.246: “Multimedia Broadcast/Multicast Service (MBMS) user services; Stage 1“. 4 3GPP TS 23.246: “Multimedia Broadcast/Multicast Service (MBMS); Architecture and functional description“. 5 3GPP TS 25.346: “Introduction of the Multimedia Broadcast/Multicast Service (MB
34、MS) in the Radio Access Network (RAN); Stage 2“. 6 3GPP TS 26.346: “Multimedia Broadcast/Multicast Service (MBMS); Protocols and codecs“. 7 3GPP TS 33.220: “Generic Authentication Architecture (GAA); Generic bootstrapping architecture“. 8 3GPP TS 33.246: “3G Security; Security of Multimedia Broadcas
35、t/Multicast Service (MBMS)“. 9 IETF RFC 3926 (October 2004): “FLUTE - File Delivery over Unidirectional Transport“, T. Paila, M. Luby, R. Lehtonen, V. Roca and R. Walsh. 10 IETF RFC 3450 (December 2002): “Asynchronous Layered Coding (ALC) Protocol Instantiation“, M. Luby, J. Gemmell, L. Vicisano, L.
36、 Rizzo and J. Crowcroft. 11 IETF RFC 3451 (December 2002): “Layered Coding Transport (LCT) Building Block“, M. Luby, J. Gemmell, L. Vicisano, L. Rizzo, M. Handley and J. Crowcroft. 12 IETF RFC 3452 (December 2002): “Forward Error Correction (FEC) Building Block“, M. Luby, L. Vicisano, J. Gemmell, L.
37、 Rizzo, M. Handley and J. Crowcroft. 13 IETF RFC 3695 (February 2004): “Compact Forward Error Correction (FEC) Schemes“, M. Luby and L. Vicisano. 14 IETF RFC 2327 (April 1998): “SDP: Session Description Protocol“, M. Handley and V. Jacobson. 15 IETF RFC 2357 (June 1998): “IETF Criteria for Evaluatin
38、g Reliable Multicast Transport and Application Protocols“, A. Mankin, A. Romanow, S. Bradner and V. Paxson. 16 IETF RFC 3550 (July 2003): “RTP: A Transport Protocol for Real-Time Applications“, H. Schulzrinne, S. Casner, P. Frederick and V. Jacobson. 17 ITU-T Recommendation H.264 (2003): “Advanced v
39、ideo coding for generic audiovisual services“ | ISO/IEC 14496-10:2003: “Information technology - Coding of audio-visual objects - Part 10: Advanced Video Coding“. ETSI ETSI TR 126 946 V15.0.1 (2018-07)73GPP TR 26.946 version 15.0.1 Release1518 IETF RFC 3984 (February 2005): “RTP payload Format for H
40、.264 Video“, S. Wenger, M.M. Hannuksela, T. Stockhammer, M. Westerlund and D. Singer. 19 IETF RFC 2616 (June 1999): “Hypertext Transfer Protocol - HTTP/1.1“. 20 3GPP TS 26.244: “Transparent end-to-end streaming service; 3GPP file format (3GP)“. 21 3GPP TS 26.247: “Transparent end-to-end Packet-switc
41、hed Streaming Service (PSS); Progressive Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH)“. 22 IETF RFC 7231 (June 2014): “Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content“, R. Fielding, J. Reschke. 23 3GPP TR 26.848: “Multimedia Broadcast/Multicast Service (MBMS); Enhanced
42、MBMS Operation“. 24 IETF RFC 3986: “Uniform Resource Identifier (URI): Generic Syntax“, D. Berners-Lee, R. Fielding, L. Masinter. 25 3GPP TS 26.347: “Multimedia Broadcast/Multicast Service (MBMS); Transport Protocol and API“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the pr
43、esent document, the terms and definitions given in 3GPP TR 21.905 1 and the following apply. broadcast service: See 3GPP TS 22.146 2. broadcast session: See 3GPP TS 22.146 2. Local MBMS Area: area of a MBMS service, where the service content is the same. One MBMS service may have different content i
44、n different local broadcast areas Multimedia Broadcast/Multicast Service (MBMS): See 3GPP TS 22.146 2. MBMS user services: See 3GPP TS 22.246 3. MBMS user service discovery/announcement: user service discovery refers to methods for the UE to obtain the list of available MBMS user services along with
45、 information on the user service The user service announcement refers to methods for the MBMS service provider to make the list of available MBMS user services along with information on the user service available to the UE. MBMS user service initiation: MBMS user service initiation refers to the UE
46、mechanism to set up the reception the MBMS user service data MBMS delivery method: mechanism used by a MBMS user service to deliver content There are two MBMS delivery method instances: download and streaming. MBMS download delivery method: delivery of discrete objects (e.g. files) by means of a MBM
47、S download session MBMS streaming delivery method: delivery of continuous media (e.g. real-time video) by means of a MBMS streaming session MBMS download session: time, protocols and protocol state (i.e. parameters) which define sender and receiver configuration for the download of content files MBM
48、S streaming session: time, protocols and protocol state (i.e. parameters) which define sender and receiver configuration for the streaming of content multicast joining: See 3GPP TS 22.146 2. multicast service: See 3GPP TS 22.146 2. ETSI ETSI TR 126 946 V15.0.1 (2018-07)83GPP TR 26.946 version 15.0.1
49、 Release15multicast session: See 3GPP TS 22.146 2. 3.2 Abbreviations For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 1 and the following abbreviations apply: ADPD Associated Delivery Procedure Description ALC Asynchronous Layered Coding AVC Advanced Video Coding BM-SC Broadcast-Multicast - Service Centre CC Congestion Control DANE DASH Aware Network Element DASH Dynamic Adaptive Streaming over HTTP ERT Expected Residual Time ESI Encoding Symbol IDFDT File Delivery Table F
