1、 ETSI ES 202 667 V1.1.5 (2010-05)ETSI Standard Speech and multimedia Transmission Quality (STQ);Audiovisual QoS for communication over IP networksETSI ETSI ES 202 667 V1.1.5 (2010-05) 2Reference RES/STQ-00153 Keywords multimedia, QoS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANC
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5、ou find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reprod
6、uction in all media. European Telecommunications Standards Institute 2010. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its
7、 Members and of the 3GPP Organizational Partners. LTE is a Trade Mark of ETSI currently being 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 Association. ETSI ETSI ES 202 667 V1.1.5 (2010-05) 3Co
8、ntents Intellectual Property Rights 5g3Foreword . 5g31 Scope 6g32 References 6g32.1 Normative references . 6g32.2 Informative references 10g33 Definitions and abbreviations . 12g33.1 Definitions 12g33.2 Abbreviations . 12g34 Parameters affecting audiovisual user perceived quality . 15g34.1 Audiovisu
9、al user perceived quality model . 15g34.2 Coding algorithms 15g34.2.1 Speech . 15g34.2.2 Audio 17g34.2.3 Video 18g34.2.4 Lip synchronization 22g34.3 Network transmission protocols and principles 23g34.3.1 Unreliable communication 23g34.3.2 Multicast . 23g34.3.3 Reliable communication . 24g34.3.4 Mul
10、tipoint . 24g34.3.5 DSL Access 24g34.3.5.1 Asymmetrical DSL 25g34.3.5.2 Symmetrical DSL 26g34.3.6 Wireless access . 26g34.3.6.1 2G Mobile access 26g34.3.6.2 3G Mobile access 26g34.3.6.3 Long Term Evolution (LTE - 4G) . 27g34.3.6.4 DECT 27g34.3.6.5 Broadband Wireless Access 29g34.3.6.6 WLAN . 29g34.3
11、.7 Broadcasting . 30g34.3.8 Cable networks . 30g34.4 Network performance parameters 32g34.4.1 Transmission bandwidth . 32g34.4.1.1 General considerations 32g34.4.1.2 Speech transmission 32g34.4.1.3 Audio transmission . 32g34.4.1.4 Video transmission 34g34.4.2 Packet loss 34g34.4.2.1 General consider
12、ations 34g34.4.2.2 Speech transmission 34g34.4.2.3 Audio transmission . 35g34.4.2.4 Video transmission 36g34.4.3 Transmission delay . 37g34.4.3.1 General 37g34.4.3.2 Transmitting terminal delay 37g34.4.3.3 Access network delay 38g34.4.3.4 Core network delay . 39g34.4.3.5 Receiving terminal delay . 3
13、9g34.4.4 Transmission delay variations (jitter) . 39g34.5 Terminal characteristics . 40g34.5.1 Packet loss recovery 40g34.5.2 Playout buffer . 40g3ETSI ETSI ES 202 667 V1.1.5 (2010-05) 44.5.3 Audio characteristics. 40g34.5.4 Video display 40g34.6 Audio-video interaction 41g35 Audiovisual application
14、s classification 41g35.1 Delay sensitive applications . 42g35.2 Delay insensitive applications 42g36 Delay sensitive audiovisual applications requirements 42g36.1 Coding algorithms 42g36.1.1 Narrowband speech. 42g36.1.2 Wideband speech 43g36.1.3 Video 43g36.2 Network performance requirements . 44g36
15、.3 Terminal characteristics . 45g36.3.1 Narrowband speech. 45g36.3.2 Wideband speech 45g36.3.3 Video 45g37 Delay insensitive audiovisual applications requirements . 46g37.1 Coding algorithms 46g37.1.1 Audio 46g37.1.2 Video 46g37.2 Network performance requirements . 47g37.3 Terminal characteristics .
16、 48g37.3.1 Audio 48g37.3.2 Video 48g3Annex A (informative): Audio-video quality interaction 49g3A.1 Introduction 49g3A.2 Available information. 49g3A.2.1 TR 102 479 . 49g3A.2.2 Results presented to ITU-T Recommendation SG.12 51g3Annex B (informative): QoS mechanisms and the effects on connection per
17、formance . 54g3B.1 Introduction 54g3B.2 QoS mechanisms 54g3B.2.1 Integrated services (IntServ). 54g3B.2.2 Differentiated services (DiffServ) 54g3B.2.3 WLAN QoS mechanism . 55g3B.2.4 WiMax QoS mechanism 56g3B.2.5 HSPA/LTE packet scheduling 56g3B.2.6 RACS . 57g3B.2.7 Cable networks QoS mechanism 59g3B
18、.3 Effects on connection performance 62g3Annex C (informative): Packet loss recovery . 63g3C.1 Introduction 63g3C.2 Application layer packet loss recovery methods 63g3C.2.1 Speech and audio recovery . 63g3C.2.2 Video recovery . 66g3C.3 Performance improvement . 66g3Annex D (informative): Pr ovisiona
19、l QoS Classes defined in ITU-T Recommendation Y.1541 68g3Annex E (informative): Bibliography . 69g3History 70g3ETSI ETSI ES 202 667 V1.1.5 (2010-05) 5Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertainin
20、g to these essential IPRs, if any, is publicly 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
21、. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). 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 u
22、pdates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This ETSI Standard (ES) has been produced by ETSI Technical Committee Speech and multimedia Transmission Quality (STQ). ETSI ETSI ES 202 667 V1.1.5 (2010-05) 61 Scope The present document
23、addresses combination network performance parameters and user perceived media (audio and video) quality parameters for audiovisual communications on IP networks. The access technologies covered include both wired (e.g. xDSL) and wireless (e.g. UMTS, WLAN) technologies. The display size range covered
24、 is from those of small mobile terminals (e.g. 2“) up to large TV sets (e.g. 40“ or more). It is applicable to: Broadcasting and streaming applications such as IPTV and VoD. Interactive point-to-pint applications such as videotelephony and videoconferencing. Where the media coding standards define t
25、wo or more profiles, the baseline profile is addressed in the normative part of the standard. Informative annexes present an overview of network QoS mechanisms and the effects on connection performance as well as guidance on terminal parameters that may influence the user perceived media performance
26、. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) app
27、lies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative r
28、eferences The following referenced documents are necessary for the application of the present document. 1 ITU-T Recommendation Y.1540: “Internet protocol data communication service - IP packet transfer and availability performance parameters“. 2 ITU-T Recommendation Y.1541: “Network performance obje
29、ctives for IP-based services“. 3 ITU-T Recommendation G.711: “Pulse Code Modulation (PCM) of voice frequencies“. 4 ITU-T Recommendation G.722: “7 kHz audio-coding within 64 kbit/s“. 5 ITU-T Recommendation G.723.1: “Dual rate speech coder for multimedia communications transmitting at 5.3 and 6.3 kbit
30、/s“. 6 ITU-T Recommendation G.726: “40, 32, 24, 16 kbit/s Adaptive Differential Pulse Code Modulation (ADPCM)“. 7 ITU-T Recommendation G.728: “Coding of speech at 16 kbit/s using low-delay code exited linear prediction“. 8 ITU-T Recommendation G.729: “Coding of speech at 8 kbit/s using conjugate-str
31、ucture algebraic-code-excited linear-prediction (CS-ACELP)“. 9 ITU-T Recommendation G.729.1: “G.729 Embedded Variable bit-rate coder: An 8-32 kbit/s scalable wideband coder bitstream interoperable with G.729“. ETSI ETSI ES 202 667 V1.1.5 (2010-05) 710 ETSI TS 126 071 (V6.0.0): “Digital cellular tele
32、communications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); AMR speech Codec; General description (3GPP TS 26.071 version 6.0.0 Release 6)“. 11 3GPP2 C.S0014-C v1.0 (January 2007): “Enhanced Variable Rate Codec, Speech Service Option 3, 68 and 70 for Wideband Spread Spectrum
33、 Digital Systems“. 12 ITU-T Recommendation G.722.1: “Low-complexity coding at 24 and 32 kbit/s for hands-free operation in systems with low frame loss“. 13 ITU-T Recommendation G.711.1: “Wideband embedded extension for G.711 pulse code modulation“. 14 ETSI TS 126 171: “Digital cellular telecommunica
34、tions system (Phase 2+); Universal Mobile Telecommunications System (UMTS); AMR speech codec, wideband; General description (3GPP TS 26.171 version 6.0.0 Release 6)“. NOTE: TS 126 171 is identical to ITU-T Recommendation G.722.2. 15 IETF RFC 3551: “RTP Profile for Audio and Video Conferences with Mi
35、nimal Control“. 16 ISO/IEC 11172 (all parts): “Information technology - Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s“. NOTE: MPEG 1. 17 ISO/IEC 13818 (all parts): “Information technology - Generic coding of moving pictures and associated audio in
36、formation“. NOTE: MPEG 2. 18 ISO/IEC 14496 (all parts): “Information technology - Coding of audio-visual objects“. NOTE: MPEG 4. 19 ETSI TS 126 290: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Audio codec processing functions; Extended A
37、daptive Multi-Rate - Wideband (AMR-WB+) codec; Transcoding functions (3GPP TS 26.290 version 6.3.0 Release 6)“. 20 ITU-T Recommendation G.719: “Low-complexity full-band audio coding for high-quality conversational applications“. 21 ETSI TS 102 366: “Digital Audio Compression (AC-3, Enhanced AC-3) St
38、andard“. 22 ITU-T Recommendation H.261: “Video codec for audiovisual services at p 64 kbit/s“. 23 ITU-T Recommendation H.262: “Information technology - Generic coding of moving pictures and associated audio information: Video“. 24 ITU-T Recommendation H.263: “Video coding for low bit rate communicat
39、ion“. 25 ITU-T Recommendation H.264: “Advanced video coding for generic audiovisual services“. NOTE: This recommendation is identical to MPEG 4 Annex 10. 26 SMPTE 421M (2006): “VC-1 Compressed Video Bitstream Format and Decoding Process“. 27 ITU-R Recommendation BT.1359-1: “Relative timing of sound
40、and vision for broadcasting“. 28 IETF RFC 768: “User Datagram Protocol“. 29 ETSI TS 122 146: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Multimedia Broadcast/Multicast Service (MBMS); Stage 1 (3GPP TS 22.146 version 7.3.0 Release 7)
41、“. 30 IETF RFC 793: “Transmission Control Protocol“. ETSI ETSI ES 202 667 V1.1.5 (2010-05) 831 ITU-T Recommendation G.995.1: “Overview of digital subscriber line (DSL) Recommendations“. 32 IEEE 802.3 (2005): “IEEE Standard for Information technology-Telecommunications and information exchange betwee
42、n systems-Local and metropolitan area networks; Specific requirements Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications“. 33 ITU-T Recommendation G.992.1: “Asymmetric digital subscriber line (ADSL) transceivers“. 34 ITU-T Recomme
43、ndation G.992.2: “Splitterless asymmetric digital subscriber line (ADSL) transceivers“. 35 ITU-T Recommendation G.992.3: “Asymmetric digital subscriber line transceivers 2 (ADSL2)“. 36 ITU-T Recommendation G.992.4: “Splitterless asymmetric digital subscriber line transceivers 2 (splitterless ADSL2)“
44、. 37 ITU-T Recommendation G.992.5: “Asymmetric Digital Subscriber Line (ADSL) transceivers - Extended bandwidth ADSL2 (ADSL2plus)“. 38 ITU-T Recommendation G.993.1: “Very high speed digital subscriber line transceivers“. 39 ITU-T Recommendation G.993.2: “Very high speed digital subscriber line trans
45、ceivers 2 (VDSL2)“. 40 ITU-T Recommendation G.991.1: “High bit rate Digital Subscriber Line (HDSL) transceivers“. 41 ITU-T Recommendation G.991.2: “Single-pair high-speed digital subscriber line (SHDSL) transceivers“. 42 ETSI TS 101 113: “Digital cellular telecommunications system (Phase 2+) (GSM);
46、General Packet Radio Service (GPRS); Service description; Stage 1 (GSM 02.60 version 7.5.0 Release 1998)“. 43 ETSI TS 122 228: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Service requirements for the Internet Protocol (IP) multimedia cor
47、e network subsystem (IMS); Stage 1 (3GPP TS 22.228 version 8.5.0 Release 8)“. 44 ETSI TS 122 173: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia Core Network Subsystem (IMS) Multimedia Telephony Service and supplementary servi
48、ces; Stage 1 (3GPP TS 22.173 version 7.5.0 Release 7)“. 45 ETSI TS 125 308: “Universal Mobile Telecommunications System (UMTS); High Speed Downlink Packet Access (HSDPA); Overall description; Stage 2 (3GPP TS 25.308 version 7.7.0 Release 7)“. 46 ETSI TS 125 319: “Universal Mobile Telecommunications
49、System (UMTS); Enhanced uplink; Overall description; Stage 2 (3GPP TS 25.319 version 7.6.0 Release 7)“. 47 ETSI TS 123 107: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Quality of Service (QoS) concept and architecture (3GPP TS 23.107 version 7.1.0 Release 7)“. 48 ETSI TS 123 207: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); End-to-end Quality of Serv
