1、 ETSI TR 126 948 V14.0.0 (2017-04) 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 14.0.0 Release 14) TECHNICAL REPORT ETSI ETSI TR 126 948 V14.0.0 (20
2、17-04)13GPP TR 26.948 version 14.0.0 Release 14Reference RTR/TSGS-0426948ve00 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、R 126 948 V14.0.0 (2017-04)23GPP TR 26.948 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-
10、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/). Purs
11、uant 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 doc
12、ument. 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
13、 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“ are to be in
14、terpreted 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 126 948 V14.0.0 (2017-04)33GPP TR 26.948 version 14.0.0 Release 14Contents Int
15、ellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 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 Genera
16、l . 9g35.1 Basic SHVC architecture 9g35.2 Systems and transport interfaces of SHVC 10g35.2.1 Introduction. 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 Refe
17、rence Picture List Construction 12g35.2.7 Random Access, Layer Switching, and Bitstream Splicing 13g35.2.8 Hybrid Codec Scalability and Multiview/3D Support 13g35.2.9 Hypothetical Reference Decoder (HRD) 14g35.2.10 SEI Messages 14g35.3 A comparison of SHVC and SVC 14g35.4 SHVC decoder and encoder co
18、mplexity analyses 16g35.4.1 Introduction. 16g35.4.2 HEVC simulcast encoder and decoder 16g35.4.3 SHVC 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
19、Video Conferencing (MMVC) 22g36.1.1 The heterogeneous-device MMVC use case . 22g36.1.2 The heterogeneous-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 . 26g36.1.4.1 Uplink bandw
20、idth 26g36.1.4.2 Downlink bandwidth . 26g36.1.4.3 Decoding complexity 27g36.1.4.4 Encoding complexity 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 . 29g3ET
21、SI ETSI TR 126 948 V14.0.0 (2017-04)43GPP TR 26.948 version 14.0.0 Release 146.2.3.1 Transmission bandwidth . 29g36.2.3.2 Decoding complexity 31g36.2.3.3 Encoding complexity 32g36.3 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 3
22、2g36.3.2.2 SHVC 33g36.3.3 Comparison of the solutions . 34g36.3.3.0 General 34g36.3.3.1 Outgoing transmission 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 comp
23、lexity 36g36.3.3.4 Encoding complexity 36g37 Test cases, conditions, and results 37g37.1 Test cases and conditions . 37g37.1.1 General conditions 37g37.1.2 MMVC 38g37.1.3 MBMS 39g37.1.4 3GP-DASH . 40g37.2 Test results 42g37.2.1 MMVC 42g37.2.1.1 General 42g37.2.1.2 Results for aligned IRAP pictures c
24、ase . 42g37.2.1.3 Results for IRAP non-aligned test case . 43g37.2.1.4 First set of additional results . 43g37.2.1.5 Second set of additional results . 44g37.2.1.6 Additional analysis for comparing SHVC and HEVC simulcast 48g37.2.1.6.1 Introduction . 48g37.2.1.6.2 Uplink vs downlink transmission cos
25、t . 48g37.2.1.6.3 Case by case cost/benefit analysis of SHVC vs HEVC simulcast . 48g37.2.2 MBMS 52g37.2.2.0 General 52g37.2.2.1 Results for aligned IRAP pictures case . 53g37.2.2.2 Results for non-aligned IRAP pictures case 54g37.2.3 3GP-DASH. 55g37.2.3.0 General 55g37.2.3.1 Results for aligned IRAP
26、 pictures case . 56g37.2.3.2 Results for non-aligned IRAP pictures case 57g38 Conclusions 58g38.1 Introduction 58g38.2 MMVC and IMS based telepresence 59g38.3 MBMS 59g38.4 3GP-DASH. 60g3Annex A: Change history 61g3History 62g3ETSI ETSI TR 126 948 V14.0.0 (2017-04)53GPP TR 26.948 version 14.0.0 Relea
27、se 14Foreword This Technical Report has been produced by the 3rdGeneration 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
28、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 or greater indicates TSG approved document under change control. y the sec
29、ond 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. ETSI ETSI TR 126 948 V14.0.0 (2017-04)63GPP TR 26.948 version 14.0.0 Release 141 Scope T
30、he present document reports the study on video enhancements in 3GPP multimedia services. It firstly provides 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
31、 4, including multi-stream multiparty video conferencing), MMS (TS 26.140 5), and IMS Messaging and Presence (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 enab
32、le drawing conclusions, simulation conditions and simulation results for comparisons of different codecs 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, concl
33、usions are made in terms of recommendations for support of enhanced video capabilities for 3GPP multimedia services. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. - References are either specific (identif
34、ied 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-specific refer
35、ence implicitly refers to the latest version of that document in the same Release as the present document. 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-
36、to-end Packet-switched Streaming Service (PSS); Protocols and codecs“. 3 3GPP TS 26.346: “Multimedia 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 Messa
37、ging Service (MMS); Media formats and codecs“. 6 3GPP TS 26.141: “IP Multimedia System (IMS) Messaging 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 Recom
38、mendation H.264 (V9) (02/2014): “Advanced video coding for generic audiovisual services“. 10 ITU-T Recommendation 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
39、(HEVC) Standard,“ IEEE Trans. Circuits Syst. Video Technol., August 2015, to be published. 12 R. Sjberg, 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. V
40、ideo Technol., vol. 22, no. 12, pp. 1858uni20121870, Dec. 2012. 13 3GPP TR 26.906: “Evaluation of HEVC for 3GPP Services“. ETSI ETSI TR 126 948 V14.0.0 (2017-04)73GPP TR 26.948 version 14.0.0 Release 1414 G. Tech, Y. Chen, K. Mller, J.-R. Ohm, A. Vetro, and Y.-K. Wang, “Overview of the Multiview and
41、 3D Extensions of High Efficiency Video Coding,“ IEEE Trans. Circuits Syst. Video Technol., August 2015, 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 (06/2
42、014): “Parameter values for ultra-high definition television systems for production and international programme 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 abbreviat
43、ions 3.1 Definitions For the purposes of the present document, the terms and definitions given in TR 21.905 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 3
44、rdGeneration Partnership Project API Application Program Interface AU Access Unit AVC Advanced Video Coding 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 Buf
45、fer CRA Clean Random Access CTU Coding Tree Unit DASH Dynamic Adaptive Streaming over HTTP DPB Decoded 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
46、 Decoding Refresh IMS IP Multimedia Subsystem INBLD Independent Non-Base Layer Decoding ILP Inter-Layer 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 Mult
47、imedia Messaging Service MRFP Multimedia Resource Function Processor MSB Most Significant Bits MTSI Multimedia Telephony Service for IMS ETSI ETSI TR 126 948 V14.0.0 (2017-04)83GPP TR 26.948 version 14.0.0 Release 14MTU Maximum Transmission Unit MV Motion Vector MV-HEVC MultiView High Efficiency Vid
48、eo 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 Pic
49、ture Set SAO Sample Adaptive OffsetSEI Supplemental Enhancement Information SPS Sequence Parameter Set SVC Scalable Video Coding SHVC Scalable High efficiency Video Coding TMVP Temporal Motion Vector Prediction UE User Equipment UHDTV Ultra High-Definition TeleVision VPS Video Parameter Set VUI Video Usability Information WPP Wavefront Parallel Processing 4 Overview of video codecs specified for existing 3GPP multimedia services The video support in 3GPP multimedia services in Release-12 is provided in Table 1. ETSI ETSI T
