1、 ETSI TR 126 903 V14.0.0 (2017-04) Universal Mobile Telecommunications System (UMTS); LTE; Improved video support for Packet Switched Streaming (PSS) and Multimedia Broadcast/Multicast Service (MBMS) Services (3GPP TR 26.903 version 14.0.0 Release 14) TECHNICAL REPORT ETSI ETSI TR 126 903 V14.0.0 (2
2、017-04)13GPP TR 26.903 version 14.0.0 Release 14Reference RTR/TSGS-0426903ve00 Keywords 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 enregistre la Sous-Pr
3、fecture 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 document shall not
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9、26 903 V14.0.0 (2017-04)23GPP TR 26.903 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 members and non-mem
10、bers, 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/). Pursuan
11、t 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 docume
12、nt. 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 references to the co
13、rresponding 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“ are to be inter
14、preted 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 126 903 V14.0.0 (2017-04)33GPP TR 26.903 version 14.0.0 Release 14Contents Intell
15、ectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 6g33.1 Definitions 6g33.2 Abbreviations . 7g34 General . 7g34.1 Introduction 7g34.2 Rel 6, 7 and 8 requirements for terminals supporting H.264 in MBMS and PSS
16、 7g34.3 Working Assumptions 8g34.3.1 Codec profiles and levels 8g34.3.2 Resolutions . 8g34.3.2.1 General 8g34.3.2.2 Resolutions for PC-based UEs 8g34.3.3 Bitrates 8g34.3.4 Frame Rates 8g34.3.5 Random access point frequency 8g34.3.6 Audio 8g34.3.7 Error control 9g34.3.8 Complexity . 9g34.3.9 Bandwidt
17、h efficiency 9g34.3.10 Reproduction of results . 9g34.3.11 Radio Assumptions . 9g34.3.11.1 MBMS Release 9 9g35 Use Cases . 9g35.1 Use Cases for Baseline Terminals 9g35.2 Use Cases for Advanced Terminals 10g35.2.1 File download to Advanced terminals 10g35.2.2 Streaming to Advanced terminals . 10g35.2
18、.3 Streaming to Baseline and Advanced Terminals 10g35.2.3.1 Broadcast of Baseline and Advanced Mobile TV Services . 10g35.2.3.2 Broadcast of Baseline Mobile TV Services and Unicast Transmission of Advanced Mobile TV Services . 10g35.2.3.3 Unicast Transmission of Baseline and Advanced Mobile TV Servi
19、ces 10g35.2.4 File download to Baseline and Advanced Terminals 11g35.2.4.1 Introduction . 11g35.2.4.2 Broadcast file delivery to baseline and advanced terminals 11g35.2.4.3 Broadcast file delivery to baseline terminals and unicast transmission to advanced terminals . 11g35.2.4.4 Unicast file deliver
20、y to baseline and advanced terminals 11g35.2.5 Streaming to Baseline Terminals and File Download to Advanced Terminals 11g35.2.5.1 Introduction . 11g35.2.5.2 Broadcast of Baseline and Advanced Mobile TV Services . 11g35.2.5.3 Broadcast of Baseline Mobile TV Services and Unicast Transmission of Advan
21、ced Mobile TV Services . 12g35.2.5.4 Unicast Transmission of Baseline and Advanced Mobile TV Services 12g35.3 Enhancements to the previous use cases 12g35.3.1 Video aspect ratio management 12g35.3.2 UE Power Saving and Fast Stream Switching in MBMS . 12g35.3.3 Graceful Degradation 12g35.3.3.1 Rate a
22、daptation in PSS when entering bad reception conditions 12g3ETSI ETSI TR 126 903 V14.0.0 (2017-04)43GPP TR 26.903 version 14.0.0 Release 145.3.3.2 Graceful Degradation in MBMS services when entering bad reception conditions 13g35.3.3.3 Graceful Degradation in Traffic Congestion . 13g35.3.3.4 Combine
23、d support of heterogeneous devices and Graceful Degradation 13g35.3.4 Conditional Access . 13g35.3.5 Rate and quality adaptation with predefined multi quality content originating from external networks 13g35.3.6 HD Support for Mobile PC-based UEs . 13g35.3.7 Playback on Alternate Displays 14g35.3.7.
24、1 Mobile UE Playback Displayed on External Monitors and HDTVs . 14g35.3.7.2 Playback of Superdistributed files on dissimilar alternate UEs. 14g36 Evaluation of Support for Baseline Terminals . 14g37 Evaluation of Support for Advanced Terminals . 15g37.1 Solutions . 15g37.1.1 Scalable Video Coding .
25、15g37.1.1.1 Introduction . 15g37.1.1.2 Solution Configuration 16g37.1.1.3 Solution Integration Approaches . 17g37.1.1.3.1 Rate Adaptation for PSS using SVC with priority-based transmission scheduling 17g37.1.1.3.2 Unequal error protection with SVC . 18g37.1.2 H.264/AVC High Profile 19g37.1.2.1 Intro
26、duction . 19g37.1.2.2 Solution configuration . 19g38 Conclusions 20g3Annex A: Change history 21g3History 22g3ETSI ETSI TR 126 903 V14.0.0 (2017-04)53GPP TR 26.903 version 14.0.0 Release 14Foreword This Technical Report has been produced by the 3rdGeneration Partnership Project (3GPP). The contents o
27、f 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 date and an increase in version number as follows: Ve
28、rsion 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. technical enhancements, corrections, updates, etc. z the
29、third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TR 126 903 V14.0.0 (2017-04)63GPP TR 26.903 version 14.0.0 Release 141 Scope The present document provides an analysis of the future video capability requirements of streaming and multicast/broad
30、cast services. The purpose of this document is two-fold. On the one hand, it studies the options to upgrade the minimal requirements for video reception and decoding. On the other hand, it studies use cases for support of more advanced UEs. The ultimate target of this study item is to recommend solu
31、tions for efficiently providing video support commensurate with UE and user capabilities and needs in PSS and MBMS services. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. - References are either specific
32、(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 of a reference to a 3GPP document (including a GSM document), a non-specif
33、ic reference implicitly refers to the latest version of that document in the same Release as the present document. 1 3GPP TS 26.346: “Multimedia Broadcast/Multicast Services (MBMS); Protocols and Codecs“. 2 3GPP TS 26.234: “Transparent End-to-End Packet Switched Streaming Service (PSS); Protocols an
34、d Codecs“. 3 ITU-T Recommendation H.264 (03/09), “Advanced video coding for generic audiovisual services“ | ISO/IEC 14496- 10:2009 Information technologyCoding of audiovisual objects part 10: Advanced Video Coding“. 4 T. Schierl, Y. Sanchez de la Fuente, C. Hellge, and T. Wiegand: “Priority-based Tr
35、ansmission Scheduling for Delivery of Scalable Video Coding over Mobile Channels,“ 3rd European Symposium on Mobile Media Delivery (EUMOB), London, 2009. 5 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document,
36、the terms and definitions given in TR 21.905 x and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 5. advanced terminal: a user equipment terminal that permits rendering video at higher quality than common for UE
37、s in the market at time of generation of the document. Typically display resolutions or VGA or higher are supported. Examples are netbooks or laptops. baseline terminal: a user equipment terminal that permits to render video at typical quality as available in the market at time of generation of the
38、document. Typically display resolutions of QVGA are supported. ETSI ETSI TR 126 903 V14.0.0 (2017-04)73GPP TR 26.903 version 14.0.0 Release 143.2 Abbreviations For the purposes of the present document, the abbreviations given in TR 21.905 5 and the following apply. An abbreviation defined in the pre
39、sent document takes precedence over the definition of the same abbreviation, if any, in TR 21.905 5. AVC Advanced Video Coding MBMS Multimedia Broadcast/Multicast Services PSS Packet Switched Streaming Service SVC Scalable Video Coding 4 General 4.1 Introduction This document reports on a number of
40、use-cases, considerations, and technologies. Some of these have resulted in the recommendations included in change requests to 1 and 2. 4.2 Rel 6, 7 and 8 requirements for terminals supporting H.264 in MBMS and PSS H.264 is one of the codecs defined in PSS and MBMS from Release 6. In release 6 PSS a
41、nd MBMS, level 1b is recommended. QCIF at 15Hz is a common configuration of H.264 level 1b. In release 7 and 8 MBMS and PSS, level 1.2 is recommended. QVGA at 15Hz is a common configuration of H.264 Level 1.2. NOTE: H.264 Baseline Profile Level 1.2 content is not decodable by a Level 1b decoder. H.2
42、64 baseline profile is not recommended in its entirety. The “constraint_set1_flag“ should be set to 1, which implies a restricted subset of H.264 Baseline Profile. This restricted subset is also a subset of H.264 Main and High profiles. MBMS recommends only a single codec, namely H.264 Baseline prof
43、ile, but other codecs that are allowed in PSS are also allowed in MBMS. Table 1: Overview of Video support in Release 6, 7 and 8 PSS and MBMS H.263 profile 0 level 45 H.263 profile 3 level 45 MPEG-4 Visual Simple Profile Level 0b MPEG-4 Visual Simple Profile Level 3 H.264 Constrained Baseline profil
44、e Level 1b H.264 Constrained Baseline profile Level 1.2 PSS Release 6 Mandatory Recommended Recommended No Support Recommended No Support PSS Release 7 and 8 Mandatory Recommended Allowed through Level 3 Recommended Allowed through level 1.2 Recommended MBMS Release 6 Allowed through PSS No Support
45、No Support No Support Recommended No Support MBMS Release 7 and 8 Allowed through PSS No Support No Support No Support Allowed through level 1.2 Recommended ETSI ETSI TR 126 903 V14.0.0 (2017-04)83GPP TR 26.903 version 14.0.0 Release 144.3 Working Assumptions 4.3.1 Codec profiles and levels A single
46、 profile/level combination is defined for baseline terminals, and another for high end terminals. In other words, the present document will recommend a set of settings for baseline terminals, and a set of settings for advanced terminals. 4.3.2 Resolutions 4.3.2.1 General The following resolutions ar
47、e examples of resolutions considered relevant for the improved video support work: QVGA (320x240) nHD (640x360) VGA (640x480) HVGA (480x320) WQVGA (400x240) SD (720x576 and 720x480) 4.3.2.2 Resolutions for PC-based UEs It is anticipated the following resolutions will be needed to support connected m
48、obile PCs SD (720x576 and 720x480) XGA (1024768) 720p (1280720) WXGA (1366768) 1080p (19201080) 4.3.3 Bitrates Analysis should be performed between a minimum video bitrate of 128 kbps and a maximum of 384 kbps for baseline terminals, and for advanced terminals 2 Mbps for MBMS, and 10 Mbps for other
49、cases. 4.3.4 Frame Rates Minimal Video Frame Rate 12.5Hz or 15Hz (Depending on the test sequence) Maximal Video Frame Rate 25Hz or 30Hz (Depending on the test sequence) 4.3.5 Random access point frequency For MBMS, the random access point frequency should be at least 1 per second. 4.3.6 Audio The audio is assumed to be eAAC+ Stereo Audio at 64 kbps. NOTE: This section is included for completeness and information. ETSI ETSI TR 126 903 V14.0.0 (2017-04)93GPP TR 26.903 version 14.0.0 Release 144.3.7 Error control Equal error protection of the low and
