1、 ETSI TR 126 946 V14.0.0 (2017-04) 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 14.0.0 Release 14) TECHNICAL REPORT ETSI ETSI TR 126 9
2、46 V14.0.0 (2017-04)13GPP TR 26.946 version 14.0.0 Release 14Reference RTR/TSGS-0426946ve00 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 enre
3、gistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present do
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8、ESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Associatio
9、n. ETSI ETSI TR 126 946 V14.0.0 (2017-04)23GPP TR 26.946 version 14.0.0 Release 14Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI me
10、mbers 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.et
11、si.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 t
12、he present document. Foreword This Technical Report (TR) 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 ref
13、erences to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities 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
14、“ 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 ETSI TR 126 946 V14.0.0 (2017-04)33GPP TR 26.946 version 14.0.0 Release
15、14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g3Introduction 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
16、Service procedures . 11g35.1 User Service Discovery / Announcement . 11g35.2 User Service Initiation / termination 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 D
17、elivery methods . 12g36.1 Download delivery method 12g36.1.1 SDL diagram of the download delivery method 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
18、2: Determination of a sufficient set of consecutive encoding symbols for repair . 19g36.1.3.3 Maximum Gaussian elimination . 20g36.1.4 On choosing the SDU size 20g36.1.4.1 Analysis . 21g36.2 Streaming delivery method. 21g37 Usage scenarios 22g37.1 Service Discovery/Announcement . 22g37.2 MBMS downlo
19、ad delivery method 23g37.2.1 Example: Video clip download service use-case 23g37.2.1.1 Use-case description 23g37.2.1.2 Announced Metadata Fragments . 24g37.2.1.3 Reception of a video clip . 25g37.2.1.4 File Repair procedure 26g37.2.2 The usage of the MBMS session Identity in file download delivery
20、28g37.2.2.1 Introduction . 28g37.2.2.2 Example 1: Usage of the Session ID to detect repetition 29g37.2.2.3 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 . 31g37.2.3 Partial
21、File Delivery from MBMS Receiver to DASH Client 31g37.2.4 Communication between MBMS Client and DASH Client 31g37.2.4.1 Introduction . 31g37.2.4.2 SAND Message for MBMS Operations 31g37.2.4.2.1 Common Message . 31g37.2.4.2.2 Resource Status . 33g3ETSI ETSI TR 126 946 V14.0.0 (2017-04)43GPP TR 26.946
22、 version 14.0.0 Release 147.2.4.2.3 Bitrate Characteristics . 33g37.2.4.2.4 Availability Time Offset 34g37.2.4.3 Message Channel 35g37.2.4.3.1 General 35g37.2.4.3.2 Assistance 35g37.2.4.3.3 Enforcement 35g37.2.4.3.4 Error Case 35g37.2.5 Proxy-Based Interaction Between MBMS Receiver and DASH Client .
23、 36g37.2.5.1 Introduction . 36g37.2.5.2 Usage Guidelines Example . 37g37.2.5.2.1 Assumptions 37g37.2.5.2.2 Same Resource 38g37.2.5.2.3 Alternative Content . 38g37.2.5.2.4 Outside MBMS coverage 38g37.2.5.2.5 Persistence of the 300 Redirection 39g37.3 MBMS streaming delivery method 39g38 Codecs and fo
24、rmats 39g3Annex A: MBMS Forward Error Correction performance. 41g3A.1 Theoretical performance . 41g3A.2 Simulation results . 41g3A.2.1 Simulation conditions and assumptions (UTRAN) 42g3A.2.2 Simulation conditions and assumptions (GERAN) 43g3A.2.3 Simulation results: UTRAN download. 44g3A.2.4 Simulat
25、ion results UTRAN streaming 45g3A.2.5 Simulation results GERAN download 45g3A.2.6 Simulation results GERAN streaming 46g3Annex B: Change history 47g3History 48g3ETSI ETSI TR 126 946 V14.0.0 (2017-04)53GPP TR 26.946 version 14.0.0 Release 14Foreword This Technical Report has been produced by the 3rdG
26、eneration 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 d
27、ate 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. techn
28、ical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. Introduction MBMS user services can be built on top of the MBMS bearer service. The present document describes the usage of the two delivery methods, whi
29、ch are defined in 6. The two delivery methods are streaming and download. Examples of applications using the download delivery method are news and software upgrades. Delivery of live music is an example of an application using the streaming delivery method. The objective of the present document is t
30、o provide an overview of the MBMS System, and describes how the MBMS User Services use the MBMS Bearer Services. ETSI ETSI TR 126 946 V14.0.0 (2017-04)63GPP TR 26.946 version 14.0.0 Release 141 Scope The present document is only informative. In case there are any contradiction between the present do
31、cument and 26.346, then the 3GPP TS 26.346 takes precedence. 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
32、, 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
33、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 Service (MBMS); Stage 1“. 3 3GPP TS 22.246: “Multimedia Broadcast/Multicast Service (MBMS) user services; Stage 1“. 4 3GPP TS 23.246: “Multimedia Bro
34、adcast/Multicast Service (MBMS); Architecture and functional description“. 5 3GPP TS 25.346: “Introduction of the Multimedia Broadcast/Multicast Service (MBMS) in the Radio Access Network (RAN); Stage 2“. 6 3GPP TS 26.346: “Multimedia Broadcast/Multicast Service (MBMS); Protocols and codecs“. 7 3GPP
35、 TS 33.220: “Generic Authentication Architecture (GAA); Generic bootstrapping architecture“. 8 3GPP TS 33.246: “3G Security; Security of Multimedia Broadcast/Multicast Service (MBMS)“. 9 IETF RFC 3926 (October 2004): “FLUTE - File Delivery over Unidirectional Transport“, T. Paila, M. Luby, R. Lehton
36、en, V. Roca and R. Walsh. 10 IETF RFC 3450 (December 2002): “Asynchronous Layered Coding (ALC) Protocol Instantiation“, M. Luby, J. Gemmell, L. Vicisano, L. Rizzo and J. Crowcroft. 11 IETF RFC 3451 (December 2002): “Layered Coding Transport (LCT) Building Block“, M. Luby, J. Gemmell, L. Vicisano, L.
37、 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. Rizzo, M. Handley and J. Crowcroft. 13 IETF RFC 3695 (February 2004): “Compact Forward Error Correction (FEC) Schemes“, M. Luby and L. Vicisano
38、. 14 IETF RFC 2327 (April 1998): “SDP: Session Description Protocol“, M. Handley and V. Jacobson. 15 IETF RFC 2357 (June 1998): “IETF Criteria for Evaluating Reliable Multicast Transport and Application Protocols“, A. Mankin, A. Romanow, S. Bradner and V. Paxson. 16 IETF RFC 3550 (July 2003): “RTP:
39、A Transport Protocol for Real-Time Applications“, H. Schulzrinne, S. Casner, P. Frederick and V. Jacobson. ETSI ETSI TR 126 946 V14.0.0 (2017-04)73GPP TR 26.946 version 14.0.0 Release 1417 ITU-T Recommendation H.264 (2003): “Advanced video coding for generic audiovisual services“ | ISO/IEC 14496-10:
40、2003: “Information technology - Coding of audio-visual objects - Part 10: Advanced Video Coding“. 18 IETF RFC 3984 (February 2005): “RTP payload Format for H.264 Video“, S. Wenger, M.M. Hannuksela, T. Stockhammer, M. Westerlund and D. Singer. 19 IETF RFC 2616 (June 1999): “Hypertext Transfer Protoco
41、l - 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-switched Streaming Service (PSS); Progressive Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH)“. 22 IETF RFC 7231 (June 2014): “Hypertex
42、t Transfer Protocol (HTTP/1.1): Semantics and Content“, R. Fielding, J. Reschke. 23 3GPP TR 26.848: “Multimedia Broadcast/Multicast Service (MBMS); Enhanced MBMS Operation“. 24 IETF RFC 3986: “Uniform Resource Identifier (URI): Generic Syntax“, D. Berners-Lee, R. Fielding, L. Masinter. 3 Definitions
43、 and abbreviations 3.1 Definitions For the purposes of the present 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 conte
44、nt is the same. One MBMS service may have different content in 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
45、to obtain the list of available MBMS user services along with 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 servi
46、ce initiation: MBMS user service initiation refers to the UE 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
47、: delivery of discrete objects (e.g. files) by means of a MBMS 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
48、 receiver configuration for the download of content files MBMS streaming session: time, protocols and protocol state (i.e. parameters) which define sender and receiver configuration for the streaming of content ETSI ETSI TR 126 946 V14.0.0 (2017-04)83GPP TR 26.946 version 14.0.0 Release 14multicast
49、joining: See 3GPP TS 22.146 2. multicast service: See 3GPP TS 22.146 2. multicast 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 Exp
