1、 ETSI TR 126 948 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Study on video enhancements in 3GPP multimedia services (3GPP TR 26.948 version 15.0.0 Release 15) TECHNICAL REPORT ETSI ETSI TR 126 948 V15.0.0 (20
2、18-07)13GPP TR 26.948 version 15.0.0 Release 15Reference RTR/TSGS-0426948vf00 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 enregistre la Sous
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9、ETSI ETSI TR 126 948 V15.0.0 (2018-07)23GPP TR 26.948 version 15.0.0 Release 15Intellectual 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 avai
10、lable 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 serv
11、er (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 becom
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13、oduce 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 Partnership Proje
14、ct (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
15、 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 expression of p
16、rovisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TR 126 948 V15.0.0 (2018-07)33GPP TR 26.948 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 Refe
17、rences 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 7g34 Overview of video codecs specified for existing 3GPP multimedia services 8g35 Overview of SHVC 9g35.0 General . 9g35.1 Basic SHVC architecture 9g35.2 Systems and transport interfaces of SHVC 10g35.2.1 Introduc
18、tion. 10g35.2.2 Parameter Set and Slice Segment Header Extensions . 11g35.2.3 Layer and Scalability Identification 11g35.2.4 Layer sets 12g35.2.5 Profile, Tier, and Level (PTL) 12g35.2.6 RPS and Reference Picture List Construction 12g35.2.7 Random Access, Layer Switching, and Bitstream Splicing 13g3
19、5.2.8 Hybrid Codec Scalability and Multiview/3D Support 13g35.2.9 Hypothetical Reference Decoder (HRD) 13g35.2.10 SEI Messages 14g35.3 A comparison of SHVC and SVC 14g35.4 SHVC decoder and encoder complexity analyses 16g35.4.1 Introduction. 16g35.4.2 HEVC simulcast encoder and decoder 16g35.4.3 SHVC
20、 encoder and decoder 18g35.4.4 Upsampling filter 19g35.4.5 Inter-layer texture prediction 20g35.4.6 Inter-layer motion prediction 21g35.4.7 Conclusion 22g36 Use cases 22g36.1 Multi-stream Multiparty Video Conferencing (MMVC) 22g36.1.1 The heterogeneous-device MMVC use case . 22g36.1.2 The heterogene
21、ous-bandwidth MMVC use case 24g36.1.3 Solutions for the MMVC use cases 24g36.1.3.0 General 24g36.1.3.1 HEVC simulcast 24g36.1.3.2 SHVC 25g36.1.4 Comparison of the solutions . 25g36.1.4.1 Uplink bandwidth 25g36.1.4.2 Downlink bandwidth . 26g36.1.4.3 Decoding complexity 27g36.1.4.4 Encoding complexity
22、 27g36.2 MBMS 27g36.2.1 The differentiated-service MBMS use case 27g36.2.2 Solutions for the MBMS use case . 28g36.2.2.1 HEVC simulcast 28g36.2.2.2 SHVC 29g36.2.3 Comparison of the solutions . 29g36.2.3.1 Transmission bandwidth . 29g3ETSI ETSI TR 126 948 V15.0.0 (2018-07)43GPP TR 26.948 version 15.0
23、.0 Release 156.2.3.2 Decoding complexity 31g36.2.3.3 Encoding complexity 31g36.3 3GP-DASH. 32g36.3.1 The 3GP-DASH use case 32g36.3.2 Solutions for the 3GP-DASH use case . 32g36.3.2.1 HEVC simulcast 32g36.3.2.2 SHVC 33g36.3.3 Comparison of the solutions . 33g36.3.3.0 General 33g36.3.3.1 Outgoing tran
24、smission bandwidth . 34g36.3.3.1.0 General 34g36.3.3.1.1 From origin server to caches . 34g36.3.3.1.2 From origin server to UEs . 34g36.3.3.2 Incoming transmission bandwidth 35g36.3.3.3 Decoding complexity 36g36.3.3.4 Encoding complexity 36g37 Test cases, conditions, and results 36g37.1 Test cases a
25、nd conditions . 36g37.1.1 General conditions 36g37.1.2 MMVC 37g37.1.3 MBMS 38g37.1.4 3GP-DASH . 39g37.2 Test results 41g37.2.1 MMVC 41g37.2.1.1 General 41g37.2.1.2 Results for aligned IRAP pictures case . 41g37.2.1.3 Results for IRAP non-aligned test case . 42g37.2.1.4 First set of additional result
26、s . 43g37.2.1.5 Second set of additional results . 43g37.2.1.6 Additional analysis for comparing SHVC and HEVC simulcast 47g37.2.1.6.1 Introduction . 47g37.2.1.6.2 Uplink vs downlink transmission cost . 47g37.2.1.6.3 Case by case cost/benefit analysis of SHVC vs HEVC simulcast . 47g37.2.2 MBMS 51g37
27、.2.2.0 General 51g37.2.2.1 Results for aligned IRAP pictures case . 52g37.2.2.2 Results for non-aligned IRAP pictures case 52g37.2.3 3GP-DASH. 54g37.2.3.0 General 54g37.2.3.1 Results for aligned IRAP pictures case . 55g37.2.3.2 Results for non-aligned IRAP pictures case 56g38 Conclusions 57g38.1 Int
28、roduction 57g38.2 MMVC and IMS based telepresence 58g38.3 MBMS 58g38.4 3GP-DASH. 59g3Annex A: Change history 60g3History 61g3ETSI ETSI TR 126 948 V15.0.0 (2018-07)53GPP TR 26.948 version 15.0.0 Release 15Foreword This Technical Report has been produced by the 3rdGeneration Partnership Project (3GPP)
29、. 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 date and an increase in version numbe
30、r 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. technical enhancements, corrections, upda
31、tes, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TR 126 948 V15.0.0 (2018-07)63GPP TR 26.948 version 15.0.0 Release 151 Scope The present document reports the study on video enhancements in 3GPP multimedia services. It firstly p
32、rovides an overview of the video codecs and their configurations specified for existing 3GPP multimedia services, namely 3GP-DASH (TS 26.247 1), PSS (TS 26.234 2), MBMS (TS 26.346 3), MTSI (TS 26.114 4, including multi-stream multiparty video conferencing), MMS (TS 26.140 5), and IMS Messaging and P
33、resence (TS 26.141 6). Then use cases on video enhancements for existing 3GPP multimedia services are discussed, including a discussion on potential codec solutions for each of the use cases. To enable drawing conclusions, simulation conditions and simulation results for comparisons of different cod
34、ecs and their configurations are provided. Performance is evaluated in typical 3GPP service environments taking into account bandwidth, quality and complexity. Based on the performance results, conclusions are made in terms of recommendations for support of enhanced video capabilities for 3GPP multi
35、media services. 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, etc.) or non-specific. - For a specific r
36、eference, 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 in the same Release as the present docu
37、ment. 1 3GPP TS 26.247: “Transparent end-to-end Packet-switched Streaming Service (PSS); Progressive Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH)“. 2 3GPP TS 26.234: “Transparent end-to-end Packet-switched Streaming Service (PSS); Protocols and codecs“. 3 3GPP TS 26.346: “Multimedia
38、Broadcast/Multicast Service (MBMS); Protocols and codecs“. 4 3GPP TS 26.114: “IP Multimedia Subsystem (IMS); Multimedia telephony; Media handling and interaction“. 5 3GPP TS 26.140: “Multimedia Messaging Service (MMS); Media formats and codecs“. 6 3GPP TS 26.141: “IP Multimedia System (IMS) Messagin
39、g and Presence; Media formats and codecs“. 7 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 8 ITU-T Recommendation H.263 (01/2005): “Video coding for low bit rate communication“. 9 ITU-T Recommendation H.264 (V9) (02/2014): “Advanced video coding for generic audiovisual services“. 10 ITU-T Re
40、commendation H.265 (V3) (04/2015): “High efficiency video coding“. 11 J. Boyce, Y. Yan, J. Chen, and A. K. Ramasubramonian, “Overview of SHVC: Scalable Extensions of the High Efficiency Video Coding (HEVC) Standard,“ IEEE Trans. Circuits Syst. Video Technol., August 2015, to be published. 12 R. Sjbe
41、rg, Y. Chen, A. Fujibayashi, M. M. Hannuksela, J. Samuelsson, T. K. Tan, Y.-K. Wang, and S. Wenger, “Overview of HEVC High-Level Syntax and Reference Picture Management,“ IEEE Trans. Circuits Syst. Video Technol., vol. 22, no. 12, pp. 1858g30131870, Dec. 2012. 13 3GPP TR 26.906: “Evaluation of HEVC
42、for 3GPP Services“. ETSI ETSI TR 126 948 V15.0.0 (2018-07)73GPP TR 26.948 version 15.0.0 Release 1514 G. Tech, Y. Chen, K. Mller, J.-R. Ohm, A. Vetro, and Y.-K. Wang, “Overview of the Multiview and 3D Extensions of High Efficiency Video Coding,“ IEEE Trans. Circuits Syst. Video Technol., August 2015
43、, to be published. 15 ITU-R Recommendation BT.709-6 (06/2015): “Parameter values for the HDTV standards for production and international programme exchange“. 16 ITU-R Recommendation BT.2020-1 (06/2014): “Parameter values for ultra-high definition television systems for production and international p
44、rogramme exchange“. 17 3GPP TR 26.923: “Study on Media Handling Aspects of IMS-based Telepresence“. 18 3GPP TS 26.948: “Video enhancements for 3GPP Multimedia Services“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in TR 21
45、.905 7 apply. 3.2 Abbreviations For the purposes of the present document, the abbreviations given in TR 21.905 7 and the following apply. 3D-HEVC Three-Dimension High Efficiency Video Coding 3GPP 3rdGeneration Partnership Project API Application Program Interface AU Access Unit AVC Advanced Video Co
46、ding BD Bjontegaard Delta BL Base LayerBLA Broken Link Access BM-SC Broadcast-Multicast - Service Centre BP Bitstream Partition CABAC Context Adaptive Binary Arithmetic Coding CPB Coded Picture Buffer CRA Clean Random Access CTU Coding Tree Unit DASH Dynamic Adaptive Streaming over HTTP DPB Decoded
47、Picture Buffer EL Enhancement Layer GOP Group of Pictures HDTV High-Definition TeleVision HEVC High Efficiency Video Coding HLS High-Level SyntaxHRD Hypothetical Reference Decoder IDR Instantaneous Decoding Refresh IMS IP Multimedia Subsystem INBLD Independent Non-Base Layer Decoding ILP Inter-Layer
48、 Prediction IRAP Intra Random Access Point MANE Media Aware Network Element MBMS Multimedia Broadcast/Multicast Service MBMS-GW MBMS Gateway MMVC Multi-stream Multiparty Video Conferencing MMS Multimedia Messaging Service MRFP Multimedia Resource Function Processor MSB Most Significant Bits MTSI Mul
49、timedia Telephony Service for IMS MTU Maximum Transmission Unit MV Motion Vector ETSI ETSI TR 126 948 V15.0.0 (2018-07)83GPP TR 26.948 version 15.0.0 Release 15MV-HEVC MultiView High Efficiency Video Coding NAL Network Abstraction Layer OLS Output Layer Set POC Picture Order Count PPS Picture Parameter Set PSNR Peak Signal Noise Ratio PSS Packet-switched Streaming Service PTL Profile, Tier, and Level QP Quantization ParameterRAP Random Access Point RPL Reference Picture List RPS Reference Picture Set SAO Sample Adaptive Off
