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ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Multimedia Services from Narrowband to Broadband Simão.

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Presentation on theme: "ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Multimedia Services from Narrowband to Broadband Simão."— Presentation transcript:

1 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Multimedia Services from Narrowband to Broadband Simão Ferraz de Campos Neto Counsellor – ITU-T Study Group 16 Multimedia Services, Systems and Terminals

2 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Contents o About ITU-T SG 16 o Multimedia services o Summaries: access & media components o Narrowband services o Broadband services Additional slides o MediaCom 2004 Project o Media Coding

3 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 About Study Group 16

4 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 ITU-T Study Group 16 Responsible for studies relating to: o multimedia service definition and multimedia systems, including the associated terminals, modems, protocols and signal processing. Lead Study Group on o Multimedia Services, Systems and Terminals o e-business and e-commerce (www.itu.int/ITU-T/studygroups/com16)

5 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 ITU-T Study Group 16 Structure Study Group 16 Multimedia Services Systems & Terminals Pierre-André Probst Working Party 1 Modems and Facsimile Terminals Mitsuji Matsumoto Working Party 2 Multimedia Platforms and Interworking Sakae Okubo Working Party 3 Media Coding John Magill Working Party 4 Multimedia Framework John Magill (acting) ITU-TSB Counsellor Simão Ferraz de Campos Neto

6 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 ITU-T Study Group 16 WPs (1) Working Party 1/16 - Modems and facsimile terminals H/16 Accessibility to Multimedia Systems and Services 11/16 Voiceband Modems: Specification and Performance Evaluation 12/16 DCE-DCE protocols for the PSTN and ISDN 13/16 DTE-DCE Interfaces and Protocols 14/16 Facsimile terminals Working Party 2/16 - Multimedia platform and interworking D/16Interoperability of Multimedia Systems and Services F/16 Quality of Service (QoS) and End-to-End Performance in Multimedia Systems G/16 Security of Multimedia Systems and Services 1/16 Multimedia Systems, Terminals and Data Conferencing 2/16 Multimedia over Packet Networks using H.323 Systems 3/16 Infrastructure and Interoperability for Multimedia over Packet Network Systems 4/16 Video and data conferencing using Internet supported services 5/16 Mobility for Multimedia Systems and Services

7 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 ITU-T Study Group 16 WPs (2) Working Party 3/16 – Media coding E/16 Media coding 6/16 Advanced video coding 7/16 Wideband coding 8/16 Encoding of speech signals at bit rates around 4 kbit/s 9/16 Variable bit rate coding of speech signals 10/16 Software tools for signal processing standardization activities and maintenance of existing voice coding standards 15/16 Distributed Speech Recognition (DSR) and Distributed Speaker Verification (DSV) Working Party 4/16 – Multimedia framework A/16 MediaCom-2004 B/16 Multimedia Architecture C/16 Multimedia applications and services I/16Telecommunications for Disaster Relief New!

8 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Multimedia Services…

9 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Development of MM Applications & Services Factors: Users needs Market Trend System Design Architecture Interoperable Common Multimedia Parts, e.g., Coding (G,H,T-series), Security (X-series), Directory (X-series) Integration or Assembling of Multimedia Parts (Terminal Design; J,H-Series) Users Media (CS, PS, Cable) Wired/Wireless (ITU and non-ITU) Recommendations for Applications & Services (F,T series) Interoperability Numbering, Charging Specs. (E-series)

10 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Services in the Multimedia Context o Two paradigms Telecommunications perspective Broadcasting perspective o Telecoms perspective: Interactive applications, videoconferencing o Broadcasting: Video delivery (e.g. commercial television) o Convergence: IT / Telecoms / Broadcasting Interactive broadcasting Telecom service providers providing entertainment services o Users view versus technologists view

11 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Where do we come from? o Telephony service Voice (including audio-conferencing) Extended services (call waiting, transfer, diversion, hold, pickup, etc SS7-based) Premium rate services (pay-as-you-go E.155) o Voiceband data Low speed data (V-series: V.34, V.90, V.92) Low speed Internet access Fax (4.8 – 33.3 kbit/s) Low bit rate multimedia video-conferencing

12 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Where to? Multimedia services o Superset of monomedia services o Coordinated delivery of more than one media: Audiovisual content (fallback to audio-only) Audiovisual plus whiteboard Delivery of video services Duo / triple play: voice / data / video o Capabilities limited by access capacity BUT not all applications need all bandwidth available o Taxonomy of media will help understand viability of different types of aggregation to implement a service o Evolution: multimedia over narrowband channels to broadband channels

13 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 How hungry an application? 2 1 0.5 Upstream Mbit/s 0.512264 Downstream (Mbit/s) Broadcast & Interactive TV Voice (PSTN) Video conferencing Internet access & Peer-to-peer applications e-commerce

14 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 MM Service Descriptions o Definition of several MM tasks: Conferencing (multipoint, bi-directional, real-time) Conversation (point-to-point, bi-directional, real-time) Distribution (point-to-multipoint, unidirectional) Sending (point-to-point distribution, Tx controlled, UD; info pushing) Receiving (point-to-point distribution, Rx controlled, UD; info retrieval) Collecting (multipoint-to-point distrib., UD, Rx controlled; info polling) o Media components: audio, video, text, graphics, data and still-pictures o Quality level for media components: {-1, 0, 1, 2, 3, 4} Service definition and requirements are available in the F-series. F.700 contains the umbrella definitions: Integration of media components from the users point-of-view

15 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 MM Service Descriptions (2) F.70x: network-independent definitions F.702 (F.MCV)-Multimedia conference services F.703 (F.MCS)-MM conversational services Network-specific definitions F.731- N-ISDN MM conference services F.732- B-ISDN MM conference services

16 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Access components: a brief summary

17 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Access methods o Copper: Strict PSTN (dial-up): the majority ADSL: up- and down-stream offerings vary depending of the network provider & line conditions. Standard limits on 1.5 Mbit/s ADSL+, ADSL2: recent improvements in the techniques, higher bit rates VDSL: higher bit rates o Fiber: Backbone (traditional) To the curb (dream newer developments) o Wireless: Satellite, microwave WiFi & extensions

18 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Most recent modem standards o V.34, Two-wire PSTN modem for rates of up to 33.6 kbit/s; 1996-10 o V.90, PSTN modem with digital upstream up to 56 kbit/s and analogue downstream up to 33.6 kbit/s; 1998-09 o V.91, Four-wire version of V.90 allowing fully digital up and downstream; 1999-05; 2001-07 o V.92, Enhancements to Recommendation V.90; Geneva, 2000-11; 2001-07; 2002-03

19 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 oG.995.1 – Overview of Digital Subscriber Line (DSL) Recommendations oG.991.1 (HDSL) – High-bit rate Digital Subscriber Line (HDSL) transmission system on metallic local lines oG.991.2 (G.SHDSL) – Single-pair High bit rate speed Digital Subscriber Line oG.993.1 (G.VDSL) – Very high bit-rate Digital Subscriber Line oG.994.1, G.996.1 and G.997.1 for tests, management and handshake oADSL next slide ITU-T Recommendations on DSL

20 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 oG.992.1 (G.DMT) – Asymmetrical Digital Subscriber Line (ADSL) Transceivers oG.992.2 (G.LITE) – Splitterless Asymmetrical Digital Subscriber Line (ADSL) Transceivers oG.992.3 – Asymmetric digital subscriber line transceivers - 2 (ADSL2.DMT) o G.992.4 – Splitterless asymmetric digital subscriber line transceivers - 2 (ADSL2.LITE) ITU-T Recommendations on ADSL

21 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Recs.Bit rateContentDate G.955140 Mbit/sSingle channel PDH Long. Compat. 1984 G.957STM-16Single channel SDH transv. Compat. 1998 G.691STM-4 up to STM-256 Single channel Transv compat. Terminal OAs 1994-2000 Optical access standards (1)

22 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 G.692622 Mbit/s – 10 Gbit/s (STM-4 to STM-16) WDM 4 to 32 ch Long. Compat. Line amplifiers mono/bidirect. 1996 / 1998 G.959.12.5 and 10 Gbit/s Up to 16 channels WDM Pre-OTN Single /WDM Transv Compat. Term. OAs Id Interfaces 2000 G.69310 – 40 Gbit/s (STM-64 to STM-256) Single channel Transv. Compat. Intra office 2001 G.694.1 G.694.2 80 Ch/10 Gbit/s Up to 18 Ch/2.5 Gbit/s Dense WDM Coarse WDM 2002 Optical access standards (2)

23 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Media components

24 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Data o T.120-T.140,T.17x provide definitions for data exchange and control in MM conferencing applications. For example: T.120 defines data protocols for multipoint multimedia conferencing (Annex C describes a light version of T.120). E.g. White-board applications. T.140 adds text conversation (chat e.g. for hearing-impaired people) T.17x: MHEG for information retrieval

25 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Media Coding Four aspects: o Audio o Video o Still-image o Other media coding

26 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Media Coding: Audio o Three classic quality tiers: audio, wideband speech, and telephony speech. o ITU-T focus on interactive communications, hence mainly produced wideband and telephony speech compression standards (F.700s A0 and A1 Quality Levels).

27 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Media Coding: A2/A3 Audio o A2 coding for broadcast applications J.41 (logarithmic PCM compression, 15kHz, 384kb/s) 1988 o A2&A3 Audio coding: ISO MPEG MPEG2/Audio (e.g. MP3) MPEG4/Audio

28 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Media Coding: A1 Audio A1: Wideband speech coders (50-7000Hz) o J.42 11-bit logarithmic PCM compression (192 kbit/s) 1988 o G.722 Split-band ADPCM Coding of 7 kHz speech (64,56&48 kbit/s) 1988 o G.722.1 Transform coding (32&24 kbit/s) 1999 o G.722.2 Coding of 7 kHz speech at around 16 kbit/s (5.5-24 kbit/s) 2002

29 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Media Coding: A0 Audio A0: Telephony speech coders (300-3400 Hz) o G.711 PCM coding (64 kbit/s) late 60s o G.726 ADPCM coding (32; 40, 24 & 16 kbit/s) 1988 o G.727 Embedded ADPCM coding (40-16 kbit/s) 1990 o G.728 LD-CELP coding (16; 40, 11.8 &9.6 kbit/s) 1992 o G.723.1 Dual-rate coding (5.3 & 6.3 kbit/s) 1995 o G.729 CS-ACELP coding (8; 12.8 & 6.4 kbit/s) 1996-98 o G.VBR Variable bitrate speech coding New!

30 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Media Coding: Video o ITU standards: H.261 Video Codec for N-ISDN H.262 = MPEG2/Video (Common text) H.263 and Annexes IP, wireless, and N-ISDN H.264 (ex-H.26L): successor to H.263, work being done teamed up with MPEG Ongoing (JVT)

31 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Comparison of H.264 to existing standards (high bit rates broadcasting)

32 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Media Coding: Still Image o Still image (B/W & color) is used in facsimile services, in Internet applications, digital photography, etc. o Standards work performed by a Collaborative ITU|ISO/IEC Team working under ISO/IEC SC29 rules and organization o ITU has common-text for JPEG/JBIG (T.80 series); soon-to-be JPEG2000 (T.800 series)

33 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Other media coding Currently not performed in ITU-T: o Character coding (ISO/IEC SC2 activity) o Speech synthesis (text-to-speech) o Speech recognition (new developments)

34 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Narrowband multimedia services

35 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Multimedia terminals & systems o H.324: Communications using circuit-switched services (fixed and mobile, including 3GPP) o H.320: Communications over N-ISDN o H.310: Communications over B-ISDN o H.323: Communications over packet networks (mainly IP, mainly voice) H.450.x: Supplementary services for H.323 systems H.246: Multimedia Terminal Interworking H.248[.x]: Interworking between H.323 packet-based networks and the PSTN H.235: Security for H.323 systems … Integration of media components from the equipment/protocol point-of-view

36 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Functional model for H.324 Terminal Network Interface Audio Coding (e.g. G.723.1) Video Coding (e.g. H.261, H.263) Data Coding (T.120; V.14, LAPM) System Control (H.245,SRP/LAPM) Call Control (National standards; V.250) MM Mux & Sync (Fixed network: H.223; Mobile: H.223 Annexes A-D) User Interface PSTN multimedia terminals Will not scale towards bandwidth-hungry applications due to basic limitation of the network capacity Conferencing-centric

37 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 ISDN multimedia terminals Functional model for H.320 N-ISDN Terminal Network Interface Video Coding (H.261) Audio Coding (G.711) System Control (H.242) Call Control (Q.931) MM Mux & Sync (H.221) Data Coding (T.120) User Interface Will not economically scale towards bandwidth-hungry applications Conferencing-centric

38 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Functional model for H.323 Terminal Network Interface Audio Coding (e.g. G.711, G.729) Video Coding (e.g. H.261, H.263) User Data Coding (T.120) System Control (H.245) Call Control (H.225.0, Q.931) MM Mux & Sync (H.225.0) User Interface Packet-based multimedia terminals Scales well towards bandwidth-hungry applications, depending on capacity of the underlying networks Conferencing-centric

39 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Interoperability amongst MM terminals H.324H.310 H.320H.323 Audio/Video User data Audio/Video Mux QoS RTP/ Non-QoS H.223 H.225.0 H.222.0 H.222.1 H.221 Call Control (H.245) Call Control (H.242/H.243) Call Control (H.245) Call Control (H.245) H.223 Anx.A-D Fixed Mobile Scope for H.246

40 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Broadband multimedia services

41 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Two broadband perspectives o Convergence from broadcasting perspective: IP Cablecom Architecture o Convergence from telecom perspective Full-service VDSL Architecture

42 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Broadband MM over cable: ITU-T Cablecom o Project managed by ITU-T Study Group 9 o IP Cablecom refers to standards for IP cable communications o IP Cablecom defines architecture and interface specifications o It builds on J.83 / J.112 cable modem transport o Initial market driver IP Cablecom for has been IP telephony o Flexibility for cable providers to offer new services market deregulations

43 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Sample applications for ITU-T Cablecom o Residential/Business IP Telephony o Voice over IP o Video IP telephony o Voice/data/video unified messaging o Enhanced conferencing and media services o Entertainment Services Real-time multiplayer interactive gaming

44 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 IP Cablecom architecture AN Access Node CM Cable Modem HFC Hybrid Fiber Coax Network MTA Multimedia Terminal Adapter PSTN Public Switched Tel. Network Embedded MTA PSTN Gateway Call Management Servers CM MTA Back Office Servers Managed IP Network AN CM HFC

45 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 IP Cablecom Recommendations for interoperability intra-zone and with PSTN Architecture J.160 Architecture Signaling J.162 Network Call Signaling J.165 IPCablecom Signaling J.171 Trunk Gateway Control Protocol Quality of Service J.163 Dynamic QoS Media/Codecs J.161 Audio Codec Reqs. Operating Support System J.164 Event Messaging J.166 MIB Framework J.167 MTA Provisioning J.168 MTA MIB J.169 NCS MIB Security J.170 Security

46 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 IPCablecom Recs. for interoperability interzone and inter-domain directly over managed IP backbones Quality of Service J.174 Inter-domain QoS Security J.170 Security Architecture For further study Signaling For further study Operating Support System J.164 Event Messaging

47 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Broadband MM over the local loop: Full service VDSL specifications o Work under the FS-VDSL Focus Group (whose parent Study Group is SG 16) o Video-centric services using the local loop o Opportunity for network operators to compete with Cable network providers o Not ITU-T Recommendations (yet) o Assumes high rate availability at customers premises: combination of fiber & VDSL o Current architecture is ATM-based (PPPoA), IP extensions foreseen (PPPoE)

48 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 FS-VDSL Architecture Digital Broadcast Network Interactive A/V Network Internet Service Provider Voice Services (IP, PSTN) VDSL Voice Services (PSTN/ISDN) Digital Customer Premise Distribution Network Video on Demand Broadcast TV Internet Services User premises Local Loop & Transmission Multiplexing & Delivery over optical

49 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Full Service VDSL Technical Specifications o Focus Group Technical Specification ( http://www.itu.int/ITU-T/studygroups/com16/fs-vdsl ) Part 1: Operator requirements Part 2: System Architecture Part 3: Customer Premises Equipment Part 4: Physical Layer Specification for Interoperable VDSL Systems Part 5: OAM&P aspects for FS-VDSL Services H.FSV -Arch H.FSV-OAMP

50 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Conclusions o Network / infrastructure evolution will allow introduction of richer services o Convergence of services and applications from IT, Telecom & Broadcasting industries o Services that can be introduced are a function of the bandwidth available: taxonomy of the applications o Evolution: monomedia, narrowband services to multimedia, narrowband to multimedia, broadband

51 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Thank you for your attention! For further contact, please feel free to contact: Simão Ferraz de Campos Neto Counsellor, ITU-T Study Group 16 simao.campos@itu.int Tel: +41-22-730-6805 Fax: +41-22-730-4345 http://www.itu.int/ITU-T

52 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Additional Slides

53 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 MediaCom 2004 An ITU-T Study Group 16 Project

54 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 MediaCom 2004 Context Created in recognition of: o the rapid growth in digital, wireless, and IP networks; o the convergence of technologies e.g. broadcasting, communications, information technology, etc.; o that multimedia topics are addressed in many SDOs; o the growth in multimedia services and applications; o the need to study performance, interworking, interfaces etc. for user satisfaction.

55 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 The objective of the MediaCom2004 Project in SG 16 is to create a framework for the harmonized and coordinated development of multimedia communication standardization for use across all ITU-T and ITU-R Study Groups, and in close cooperation with other regional and international SDOs and industry forums. MediaCom 2004: Objectives

56 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 One of the main goals of the MediaCom2004 Project is to reduce need for higher layer Gateway functionality Mobile Network IP NetworkCS Network Telephony, FAX, VPS/VCS, Webcasting, Multimedia Telephony, FAX, VPS/VCS, Webcasting, Multimedia Gateway MediaCom 2004: Goal

57 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 USERS PRODUCTION - TELEPHONE - PC - BROADCASTING DATABASE - FILMS - BANK - …… SERVER 2 INTERACTIVE INTERACTIVE NON NON SERVER 1 INTERACTIVE INTERACTIVE NETWORKS INTERFACE INTERFACE INTERFACE INTERFACE - FIBRE - CABLE - TERRESTRIAL N. - SATELLITE N. RX TX RX TX RX TX... PU SERVER ITU-R Study Group 6 Diagram of Interactivity in an Era of Convergence

58 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o Scope and plan drafted 1999/2000; approved at WTSA 2000 o Recent workshops IP Networking/MediaCom 2004 (Geneva, April 2001) MM in the 21st Century (Brazil, June 2001) MM Convergence (Geneva, March 2002) Security (Seoul/Korea, May 2002) IP/Optical (Chitose, July 2002) Satellites in IP & Multimedia (December 2002) o Steering Committee meetings: 23 April 2001 14 March 2002 o Project updating: SG16 meeting, Brazil, May 2001 SG16 meeting, Geneva, February & October 2002 o Next review: Other ITU-T Workshops (Emergency Telecoms, E-health) Next SG 16 meetings MediaCom2004 - Timelines

59 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Seeking to work with: o Other ITU-T Study Groups o ITU-R Study Groups o IETF o ISO/IEC o Regional bodies, e.g. ETSI o Industry & other bodies as required MediaCom 2004 Interactions

60 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o Seven Framework Study Areas (FSA) (A/16) Project MediaCom 2004 (B/16) MM Architecture (C/16) MM Applications and Services (D/16) Interoperability of MM Systems and Services (E/16) Media Coding (F/16) QoS & E-to-E performance in MM Systems (G/16) Security of MM Systems and Services (H/16) Accessibility (total comm. concept) (I/16) Telecommunications for disaster relief o MediaCom 2004 Steering Committee o Aligned Questions in Study Group 16 o Database of multimedia related standards MediaCom2004 Work Strategy

61 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 MEDIACOM 2004 (Q.A/16) Generic Questions B/16 to I/16 Framework Standardisation Areas (FSA) Equipment and system questions 1/16 to 15/16 MediaCom 2004 Framework in SG16

62 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o High level committee: role of the SC is to address coordination issues at high level and determine issues to be coordinated by the relevant technical groups. o A tool to help coordination across all SDOs working on MM communication standards o Address multilateral issues o Co-operation through discussion to provide customer oriented solution o Members: SGs ITU-T, SGs ITU-R, IETF, MPEG, ETSI, W3C, …. MediaCom 2004 Steering Committee (SC)

63 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o Permanent review of the project (see SG16 page at itu.int/ITU-T/studygroups/com16 ) o Coordination is in general performed at working level o Workshops represent an excellent opportunity to improve the communications among the different entities involved in the development of MM standards MediaCom 2004 – Continued activities

64 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 MediaCom 2004 Highlights from the first workshop (IP-Networking and MediaCom 2004) o Transition towards NGN o E-Commerce/E-business o MM service evolution o Convergence/Interactive broadcast o Service billing/accounting o IP VPN o MM mobility o MM access platform for more details, please consult the final report of the WS (SG 16 ITU-T website).

65 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o Service and network architecture o Security and privacy o MM quality of service o Broadband delivery and in-home distribution o Interactivity in Broadcasting o Voice/video coding and signal processing for more details, please consult the final report of the WS (SG 16 ITU-T website). MediaCom 2004 Highlights from the second workshop (MM Convergence)

66 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o NGN standardisation needed to support new services on a large scale (new SG 13 Project) o Network operators and service providers expect high profit but deployment may be slow on technical and regulatory grounds. o Open interfaces and interconnection are key, interop with legacy systems needed for incumbents o New broadband services provision underway (Hikari) o IP-based MM communication is not yet well accepted for broadcasting applications (connectionless model). Work needed to overcome restrictions. for more details, please consult the final report of the WS (SG 16 ITU-T website). MediaCom 2004 Highlights from the third workshop: (IP/Optical)

67 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Working Party 1 Modems and Facsimile Terminals

68 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o Accessibility (Q H/16): Text telephony (Rec V.18): extension to include text telephony for mobile users Text telephony over IP o PCM Modems (Q 11/16): New Rec V.150.1 (ex V.MoIP): procedures for the end-to- end connection of V-series DCEs over IP-networks Status report of SG 16 activities: Modems and Facsimile (1)

69 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Modem-over-IP context New Rec V.150.1: procedures for the end-to- end connection of V-series DCEs over IP-networks

70 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o DCE-DCE protocols for PSTN and ISDN (Q 12/16): Amendments to Rec V.42 (possible consequences of V.150.1) o DTE-DCE interface protocols (Q 13/16): Revision of Rec V.250 (possible consequences of V.150.1) o Facsimile Terminals (G3 and G4) (Q 14/16): Revisions to several Recs of the T-series in support of color fax & improved TIFF spec Status report of SG 16 activities: Modems and Facsimile (2)

71 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Some details on modem standards: V.34 o V.34, Two-wire PSTN modem for rates of up to 33.6 kbit/s; 1996-10 28800, 26400, 24000, 21600, 19200, 16800, 14400, 9600, 7200, 4800, 2400 bits/s Between 3429-2400 bit/s Synchronous, with the usual fallback: V.34 V.32bis V.32 V.22bis V.22 Uses other V-series recommendations for specific functions such as V.8, V.8bis (startup), V.42 (error correction), etc.

72 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Some details on modem standards: V.90 o V.90, PSTN modem with digital upstream up to 56 kbit/s and analogue downstream up to 33.6 kbit/s Full duplex operation on the PSTN with echo cancellation Downstream: PCM modulation at a symbol rate of 8000 and synchronous channel data signalling rates from 28kbit/s to 56 kbit/s in discrete increments Upstream: (analogue) V.34 modulation; synchronous channel data signalling rates from 4.8 kbit/s to 28.8 kbit/s with optional support for 31.2 and 33.6 kbit/s Data signalling rates close to the maximum possible by use of adaptive (training) techniques exchange of rate sequences during start-up to establish the data signalling rate Modem start-up or selection: V.8 & V.8-bis (optionally) Fallback mode to full-duplex V.34 V.32bis etc

73 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Some details on modem standards: V.92 o V.92, Enhancements to Recommendation V.90; Geneva, 2000-11; 2001-07; 2002-03 Supports the V.90 features (see preceding slide) Similar to the downstream mode, negotiates V.34 modulation upstream if a connection will not support PCM modulation upstream Exchange of rate sequences during start-up to establish the data signalling rate Reduced start-up time on recognized connections Support of modem-on-hold procedures in response to call- waiting events or outgoing call requests Fallback to V.90 V.34 etc

74 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Fax-related Recommendations o T.4, Standardization of Group 3 facsimile terminals for document transmission o T.35, Procedure for the allocation of ITU-T defined codes for non-standard facilities o T.37, Procedures for the transfer of facsimile data via store-and-forward on the Internet o T.38, Procedures for real-time Group 3 facsimile communication over IP networks o Other support recommendations: T.42 (continuous tone), T.43 (grey scale & color coding in fax), T.44 (mixed raster content), T.45 (run-length color encoding) T.5 (testing method for G3 PSTN fax)

75 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Working Party 2 Multimedia Terminals and Systems

76 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Multimedia terminals & systems o H.320: Communications over N-ISDN o H.310: Communications over B-ISDN o H.323: Communications over packet networks (mainly IP) o H.324: Communications using circuit-switched services (fixed and mobile, including 3GPP) o H.246: Multimedia Terminal Interworking o H.248[.x]: Interworking between H.323 packet-based networks and the PSTN Integration of media components from the equipment/protocol point-of-view

77 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 ISDN multimedia terminals Example: Functional model for H.320 N-ISDN Terminal Network Interface Video Coding (H.261) Audio Coding (G.711) System Control (H.242) Call Control (Q.931) MM Mux & Sync (H.221) Data Coding (T.120) User Interface

78 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Example: Functional model for H.323 Terminal Network Interface Audio Coding (e.g. G.711, G.729) Video Coding (e.g. H.261, H.263) User Data Coding (T.120) System Control (H.245) Call Control (H.225.0, Q.931) MM Mux & Sync (H.225.0) User Interface Packet-based multimedia terminals

79 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Example: Functional model for H.324 Terminal Network Interface Audio Coding (e.g. G.723.1) Video Coding (e.g. H.261, H.263) Data Coding (T.120; V.14, LAPM) System Control (H.245,SRP/LAPM) Call Control (National standards; V.250) MM Mux & Sync (Fixed network: H.223; Mobile: H.223 Annexes A-D) User Interface PSTN multimedia terminals

80 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Interoperability amongst MM terminals H.324H.310 H.320H.323 Audio/Video User data Audio/Video Mux QoS RTP/ Non-QoS H.223 H.225.0 H.222.0 H.222.1 H.221 Call Control (H.245) Call Control (H.242/H.243) Call Control (H.245) Call Control (H.245) H.223 Anx.A-D Fixed Mobile Scope for H.246

81 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o Interoperability of MM systems and services (Q D/16): Roadmap for interoperability studies o QoS and E-to-E performance in MM-Systems (Q F/16): QoS Architecture (H.qos.arch) MM QoS service classification (H.mmclass) Call processing performance in MM systems (H.mmcp) Controlling service priority (H.priority) o Security of MM systems and services (Q G/16): Hybrid security profile to Rec H.235 on Security and Encryption Mobile security (Rec H.510) Security for Emergency Telecommunications and Disaster Relief (ETS) Status report of SG 16 activities: WP2 (1)

82 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 H.235 - H.323 Security Security Protocol Architecture AV Applications Audio G.711 G.722 G.723.1 G.729 Video H.261 H.263 Encryption RTCP H.225.0 Terminal to Gatekeeper Signaling (RAS) Terminal Control and Management Data Applications Security Capabilities Security Capabilities T.124 T.125 Unreliable Transport / UDP, IPXReliable Transport / TCP, SPX Network Layer / IP / IPSec Link Layer /...... Physical Layer /..... T.123 Scope of H.323Scope of H.235 TLS/SSL Multimedia Applications, User Interface TLS/SSL Authenti- cation RTP Scope of T.120 H.225.0 Call Signaling (Q.931) H.245 System Control

83 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o MM-Systems, terminals and data conferencing (Q 1/16): Revision to Recs T.120, H.222.0, H.320, H.324 o MM over packet based networks (H.323 systems) (Q 2/16): Further development of H.323 (QoS, Internet protocols, modem relay) Further development to H.460 (use of generic extensive framework) Status report of SG 16 activities: WP2 (2)

84 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o Infrastructure and interoperability for MM over packet based networks (Q 3/16): Media gateway decomposition Rec. H.248.1: packages add new functionality o Video and data conf. using IP-supported services (Q 4/16): Integration of video and data, interoperability o Mobility (Q 5/16): H.5xx series Mobility protocols and procedures Terminal mobility Status report of SG 16 activities: WP2 (3)

85 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Working Party 3 Media Coding

86 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o Media coding (Q E/16): Media coding involves four aspects: Audio, Video, Still- image & possibly other media coding (eg character coding) Umbrella question for Media Coding coordination Completion of JPEG T.800, T.801, T.803, T.804 (future work done in ISO/IEC JPEG) o Advanced video coding (Q 6/16): New generation of video coding standards for all applications (Joint Video Team SG16/MPEG) ITU-T H.264 | MPEG4 Part 10 (Advanced Video Coding) Status report of SG 16 activities: Media coding

87 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 New ITU-T Q.6/SG16 (VCEG - Video Coding Experts Group) standardization activity for video compression August 1999: 1 st test model (TML-1) December 2001: Formation of the Joint Video Team (JVT) between VCEG and MPEG to finalize H.264 as a joint project: JVT Coding (similar to MPEG-2/H.262) February 2002: WD-2 (11 th test model: TML-11) Schedule: December 2002: Last major feature adoptions February 2003: Final approval of H.264 Advanced Video Coding Status report of SG 16 activities: WP3 JVT-Project (1)

88 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Simple syntax specification Targeting simple and clean solutions Avoiding any excessive quantity of optional features or profile configurations Improved Coding Efficiency Average bit rate reduction of 50% given fixed fidelity compared to any other standard Improved Network Friendliness Issues examined in H.263 and MPEG-4 are further improved Major targets are mobile networks and Internet Status report of SG 16 activities: WP3 JVT-Project (2)

89 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Comparison of H.264 to existing standards (low bit rates videoconferencing)

90 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Comparison of H.264 to existing standards (high bit rates broadcasting)

91 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o Wideband coding (Q 7/16): wideband speech coding at around 16 kbit/s o 4 kbit/s speech coding (Q 8/16): procedure to continue under discussion o Variable bitrate coding of speech signals (Q 9/16): work plan under discussion applications: 3G, VoIP, PSTN, PCME, DCME,… o Software tools (Q 10/16): maintenance existing coding standards extension of the ITU-T SW tool library Status report of SG 16 activities: WP3 audio coding

92 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Working Party 4 Multimedia framework

93 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o Telecommunications for Disaster Relief (Q.I/16): Support for emergency communications in disaster recovery operations ETS trends: CS IP, Telephony MM, National Global Q.I/16 endorsed by TSAG (SG2/SG16 responsibility?) Workshop in Geneva, 17-19 February 2003 (see http://www.itu.int/ITU-T/worksem/ets ) o Focus Group on FS-VDSL: Transfer of Full Service VDSL Forum activities to a Focus Group of SG 16 in accordance with Rec A.7 Adopt the FS-VDSL specifications Upgrading to ITU-T Recs foreseen in May 2003 Status report of SG 16 activities: MM Framework

94 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Focus Group on Full-Service VDSL o New working strategy to cooperate with Fora/Consortia & complement the work of ITU-T Study Groups o A.7: establishment of an arms-length organization of ITU-T o Aim: enable Triple Play using VDSL o Five-part specification: Part 1: Operator requirements Part 2: System Architecture Part 3: Customer Premises Equipment Part 4: PHY for Interoperable VDSL Systems Part 5: OAM & P aspects for FS-VDSL Services o Parts 2+3 & 5 will be transformed into Recommendations; Part 1 will be come a Supplement (H-Series) o See www.itu.int/ITU-T/studygroups/com16/fs-vdsl

95 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Organisation of FS-VDSL Focus Group work Review DRM Expert Group Architecture Expert Group Key: Responsible for creating published document Advises working groups Published documents VDSL Working Group System Architecture Working Group OAM Working Group CPE Working Group Operator Group Contributions to VDSL Standards System Architecture Specification OAM Specification CPE Specification Physical Layer Specification for Interoperable VDSL Systems Operator Requirements

96 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 o Coordination and harmonisation for development of standards supporting converging services, IT/Telecommunications & Broadcasting is under way and urgently needed o MEDIACOM 2004 of SG16 is the umbrella for this activity in the field of services and applications o In SG 16, work is progressing in services, emergency telecoms, telematic terminals, modems, MM Terminals (including IP telephony), and media coding o Exploring new innovative ways to work and increase the value to the membership o The workshops represent an excellent opportunity to better understand the MM work and to coordinate the work among the different players. Conclusions – MediaCom 2004

97 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Media Coding Supplemental Slides

98 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Telephony-band Speech Coding Families

99 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Telephony-band Speech Coding Families

100 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 A2/A3 Non-ITU Standards o MPEG2/Audio: audio coding > 64 kbit/s (1992) o MPEG4/Audio: audio + speech coding at bit rates between 64 and 2 kbit/s (1998)

101 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 A0-A1 Non-ITU Standards o ETSI/3GPP: 13 kbit/s RPE-LTP (Full rate GSM, 1988) 6.5 kbit/s VSELP (Half-rate GSM, 1993) 12.2 kbit/s EFR (Enhanced full-rate GSM, 1996) 12.2 - 4.75 kbit/s AMR (Adaptive Multi Rate, 1999) 6.6 - 23.85 kbit/s AMR-WB (Wideband AMR, 2001) AMR-WB+ ongoing work o ARIB (Japan): Full-rate PDC (Personal Digital Communication) 6.7 kbit/s VSELP Half-rate PDC 3.45 kbit/s Pitch Synchronous Innovation CELP

102 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 A0-A1 Non-ITU Standards (contd) o US TIA (ANSI) CDMA / 3GPP2 IS96 8,4,2 kbit/s QCELP (Qualcomm CELP, 1992) IS127 8.55, 4, 0.8 kbit/s EVRC (Enhanced Var. Rate Codec, 1996) IS733 13.3, 6.2, 2.7, 1 kbit/s VRC (Variable Rate Codec, 1998) CDMA2000 9.6,4,2.4,0.8 kbit/s SMV (Selectable Mode Vocoder, SMV, 2002) Wideband SMV ongoing work (target: end 2003) TDMA IS54 7.95 kbit/s VSELP (Vector-Sum Excitation Lin.Pred., 1990) IS641 7.4 kbit/s ACELP (Algebraic CELP, 1997) PCS1800 (GSM upbanded to 1800 MHz) IS136-410 12.2 kbit/s US1 (1999)

103 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Still Image Coding Summary (1) o Umbrella: T.80 [1992] o JPEG: T.81 (Part I), lossy and loss-less [1992]; T.83 (Compliance testing) [1994]; T.85 (Extensions, defs & testing) [1996]; T.85 Corr.1 [1999]; T.86 Registration of JPEG Profiles [1998]; T.87 (Baseline) Lossless and near-lossless compression of continuous-tone still images [1998] o JPEG2000: T.800, Core Coding System [2002]; T.803 Conformance Testing [2002] ; T.804 Reference Software [2002] (other parts of the JPEG2000 standard will be ISO/IEC-only texts. o JBIG: T.82, loss-less [1993]; T.82 Corr.1 [1995]; T.85 JBIG for fax terminals; T.85 Amd.1 [1996], 2 [1997]; T.85 Corr.1 [1997]; T.88 Lossy/lossless coding of bi-level images [2000]; T.89 Application profiles for Recommendation T.88 [2000]

104 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Still Image Coding Summary (2) Planned new common texts: o T.800: Part 1, JPEG 2000 Image Coding System: Core Coding System o T.801: Part 2, JPEG 2000 Image Coding System: Extensions o T.802: Part 3, Motion JPEG 2000 o T.803: Part 4, Conformance Testing o T.804: Part 5, Reference Software o T.805: Part 6, Compound Image File Format o T.806: Part 7, Technical Report: Guideline of minimum support function of Part-1

105 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 ITU-T Video Coding o H.261: Video Codec for A/V services at p x 64 kbit/s The first practical video coding standard (1990) Used today in (ISDN) video conferencing systems Bit rates commonly 40 kbit/s to 2 Mbit/s o H.262: Same as MPEG-2/Video (ISO/IEC 13818-2) Commonly used for entertainment-quality video applications The first practical standard for interlaced video Used in digital cable, digital broadcast, satellite, DVD, etc. Bit rates commonly 4-20 Mbit/s

106 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 ITU-T Video Coding (continued) o H.263: Video Coding for Low Bit Rate Communication Significantly improved video coding compression performance (especially at very low rates, but also at higher rates as well) The first error and packet loss resilient video coding standard Used in Internet protocol, wireless, and ISDN video conferencing terminals (H.323, H.324, 3GPP, etc.) Baseline core mode interoperable with MPEG- 4/Video Rich set of features for many applications Very wide range of bit rates and possible applications

107 ITU-TSG16 ITU/BDT Arab Regional Workshop on DSL Services and Applications – Cairo, 4-6 March 2003 Non-ITU-T Video Coding o MPEG-1/Video (ISO/IEC 11172-2) The first video coding standard using half-pel motion compensation Typical bit rates 1-2 Mbits/s o MPEG-4/Visual (ISO/IEC 14496-2) [DivX] The first video coding standard defining arbitrary object shapes Many creative features for synthetic and synthetic- natural hybrid content Contains essentially all features of all prior standard codec designs Interoperable with ITU-T H.263 baseline Very wide range of bit rates and possible applications


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