Multimedia Services from Narrowband to Broadband

1
Multimedia Servicesfrom Narrowband to Broadband

• Simão Ferraz de Campos Neto
• Counsellor ITU-T Study Group 16
• Multimedia Services, Systems and Terminals

2
Contents

• About ITU-T SG 16
• Multimedia services
• Summaries access media components
• Narrowband services
• Broadband services
• Additional slides
• MediaCom 2004 Project
• Media Coding

3
About Study Group 16
4
ITU-T Study Group 16
(www.itu.int/ITU-T/studygroups/com16)

• Responsible for studies relating to
• multimedia service definition and multimedia
  systems, including the associated terminals,
  modems, protocols and signal processing.
• Lead Study Group on
• Multimedia Services, Systems and Terminals
• e-business and e-commerce

5
ITU-T Study Group 16 Structure
Study Group 16 Multimedia Services Systems
Terminals Pierre-André Probst
ITU-TSB Counsellor Simão Ferraz de Campos Neto
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)
6
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/16 Interoperability 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-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/16 Telecommunications for Disaster Relief

New!
8
Multimedia Services
9
Development of MM Applications Services
10
Services in the Multimedia Context

• Two paradigms
• Telecommunications perspective
• Broadcasting perspective
• Telecoms perspective
• Interactive applications, videoconferencing
• Broadcasting
• Video delivery (e.g. commercial television)
• Convergence IT / Telecoms / Broadcasting
• Interactive broadcasting
• Telecom service providers providing entertainment
  services
• Users view versus technologists view

11
Where do we come from?

• 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)
• 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
Where to? Multimedia services

• Superset of monomedia services
• 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
• Capabilities limited by access capacity BUT not
  all applications need all bandwidth available
• Taxonomy of media will help understand viability
  of different types of aggregation to implement a
  service
• Evolution multimedia over narrowband channels to
  broadband channels

13
How hungry an application?
Video conferencing
Internet access Peer-to-peer applications
2
Voice (PSTN)
Upstream Mbit/s
1
Broadcast Interactive TV
0.5
e-commerce
0.5
1
2
26
4
Downstream (Mbit/s)
14
MM Service Descriptions
Integration of media components from the users
point-of-view
Service definition and requirements are available
in the F-series. F.700 contains the umbrella
definitions

• 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)
• Media components audio, video, text, graphics,
  data and still-pictures
• Quality level for media components -1, 0, 1, 2,
  3, 4

15
MM Service Descriptions (2)
F.70x network-independent definitions F.702
(F.MCV)-Multimedia conference services F.703
(F.MCS)-MM conversational services Network-specif
ic definitions F.731- N-ISDN MM conference
services F.732- B-ISDN MM conference services
16
Access componentsa brief summary
17
Access methods

• 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
• Fiber
• Backbone (traditional)
• To the curb (dream?newer developments)
• Wireless
• Satellite, microwave
• WiFi extensions

18
Most recent modem standards

• V.34, Two-wire PSTN modem for rates of up to 33.6
  kbit/s 1996-10
• V.90, PSTN modem with digital upstream up to 56
  kbit/s and analogue downstream up to 33.6 kbit/s
  1998-09
• V.91, Four-wire version of V.90 allowing fully
  digital up and downstream 1999-05 2001-07
• V.92, Enhancements to Recommendation V.90
  Geneva, 2000-11 2001-07 2002-03

19
ITU-T Recommendations on DSL

• G.995.1 Overview of Digital Subscriber Line
  (DSL) Recommendations
• G.991.1 (HDSL) High-bit rate Digital Subscriber
  Line (HDSL) transmission system on metallic local
  lines
• G.991.2 (G.SHDSL) Single-pair High bit rate
  speed Digital Subscriber Line
• G.993.1 (G.VDSL) Very high bit-rate Digital
  Subscriber Line
• G.994.1, G.996.1 and G.997.1 for tests,
  management and handshake
• ADSL ? next slide

20
ITU-T Recommendations on ADSL

• G.992.1 (G.DMT) Asymmetrical Digital Subscriber
  Line (ADSL) Transceivers
• G.992.2 (G.LITE) Splitterless Asymmetrical
  Digital Subscriber Line (ADSL) Transceivers
• G.992.3 Asymmetric digital subscriber line
  transceivers - 2 (ADSL2.DMT)
• G.992.4 Splitterless asymmetric digital
  subscriber line transceivers - 2 (ADSL2.LITE)

21
Optical access standards (1)
22
Optical access standards (2)
23
Media components
24
Data

• 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
Media Coding

• Four aspects
• Audio
• Video
• Still-image
• Other media coding

26
Media Coding Audio

• Three classic quality tiers audio, wideband
  speech, and telephony speech.
• ITU-T focus on interactive communications, hence
  mainly produced wideband and telephony speech
  compression standards (F.700s A0 and A1 Quality
  Levels).

27
Media Coding A2/A3 Audio

• A2 coding for broadcast applications J.41
  (logarithmic PCM compression, 15kHz, 384kb/s)
  1988
• A2A3 Audio coding ISO MPEG
• MPEG2/Audio (e.g. MP3)
• MPEG4/Audio

28
Media Coding A1 Audio

• A1 Wideband speech coders (50-7000Hz)
• J.42 11-bit logarithmic PCM compression (192
  kbit/s) 1988
• G.722 Split-band ADPCM Coding of 7 kHz speech
  (64,5648 kbit/s) 1988
• G.722.1 Transform coding (3224 kbit/s) 1999
• G.722.2 Coding of 7 kHz speech at around 16
  kbit/s (5.5-24 kbit/s) 2002

29
Media Coding A0 Audio

• A0 Telephony speech coders (300-3400 Hz)
• G.711 PCM coding (64 kbit/s) late 60s
• G.726 ADPCM coding (32 40, 24 16 kbit/s) 1988
• G.727 Embedded ADPCM coding (40-16 kbit/s) 1990
• G.728 LD-CELP coding (16 40, 11.8 9.6 kbit/s)
  1992
• G.723.1 Dual-rate coding (5.3 6.3 kbit/s) 1995
• G.729 CS-ACELP coding (8 12.8 6.4 kbit/s)
  1996-98
• G.VBR Variable bitrate speech coding

New!
30
Media Coding Video

• 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
Comparison of H.264 to existing standards(high
bit rates? broadcasting)
32
Media Coding Still Image

• Still image (B/W color) is used in facsimile
  services, in Internet applications, digital
  photography, etc.
• Standards work performed by a Collaborative
  ITUISO/IEC Team working under ISO/IEC SC29
  rules and organization
• ITU has common-text for JPEG/JBIG (T.80
  series) soon-to-be JPEG2000 (T.800 series)

33
Other media coding

• Currently not performed in ITU-T
• Character coding (ISO/IEC SC2 activity)
• Speech synthesis (text-to-speech)
• Speech recognition (new developments)

34
Narrowband multimedia services
35
Multimedia terminals systems
Integration of media components from the
equipment/protocol point-of-view

• H.324 Communications using circuit-switched
  services (fixed and mobile, including 3GPP) ?
• H.320 Communications over N-ISDN ?
• H.310 Communications over B-ISDN ?
• 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

36
PSTN multimedia terminals
Functional model for H.324 Terminal

• Will not scale towards bandwidth-hungry
  applications due to basic limitation of the
  network capacity
• Conferencing-centric

37
ISDN multimedia terminals
Functional model for H.320 N-ISDN Terminal

• Will not economically scale towards
  bandwidth-hungry applications
• Conferencing-centric

38
Packet-based multimedia terminals
Functional model for H.323 Terminal

• Scales well towards bandwidth-hungry
  applications, depending on capacity of the
  underlying networks
• Conferencing-centric

39
Interoperability amongst MM terminals
40
Broadband multimedia services
41
Two broadband perspectives

• Convergence from broadcasting perspective
• IP Cablecom Architecture
• Convergence from telecom perspective
• Full-service VDSL Architecture

42
Broadband MM over cable ITU-T Cablecom

• Project managed by ITU-T Study Group 9
• IP Cablecom refers to standards for IP cable
  communications
• IP Cablecom defines architecture and interface
  specifications
• It builds on J.83 / J.112 cable modem transport
• Initial market driver IP Cablecom for has been IP
  telephony
• Flexibility for cable providers to offer new
  services ? market deregulations

43
Sample applications for ITU-T Cablecom

• Residential/Business IP Telephony
• Voice over IP
• Video IP telephony
• Voice/data/video unified messaging
• Enhanced conferencing and media services
• Entertainment Services
• Real-time multiplayer interactive gaming

44
IP Cablecom architecture
Call Management Servers
AN
PSTN Gateway
Managed IP Network
CM
PSTN
HFC
CM
MTA
Embedded MTA
AN Access Node CM Cable Modem HFC Hybrid
Fiber Coax Network MTA Multimedia Terminal
Adapter PSTN Public Switched Tel. Network
Back Office Servers
45
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
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
Broadband MM over the local loopFull service
VDSL specifications

• Work under the FS-VDSL Focus Group (whose parent
  Study Group is SG 16)
• Video-centric services using the local loop
• Opportunity for network operators to compete with
  Cable network providers
• Not ITU-T Recommendations (yet)
• Assumes high rate availability at customers
  premises combination of fiber VDSL
• Current architecture is ATM-based (PPPoA), IP
  extensions foreseen (PPPoE)

48
FS-VDSL Architecture
Video onDemand
Broadcast TV
Internet Services
Voice Services (PSTN/ISDN)
User premises
VDSL
Local Loop Transmission
Multiplexing Delivery over optical
Digital Broadcast Network
Interactive A/V Network
Internet Service Provider
Voice Services (IP, PSTN)
49
Full Service VDSL Technical Specifications

• Focus Group Technical Specification(http//www.it
  u.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 OAMP aspects for FS-VDSL Services

H.FSV-OAMP
50
Conclusions

• Network / infrastructure evolution will allow
  introduction of richer services
• Convergence of services and applications from IT,
  Telecom Broadcasting industries
• Services that can be introduced are a function of
  the bandwidth available taxonomy of the
  applications
• Evolution
• monomedia, narrowband services to
• multimedia, narrowband to
• multimedia, broadband

51
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_at_itu.int
• Tel [phone]
• Fax [phone]
• http//www.itu.int/ITU-T

52
AdditionalSlides
53
MediaCom 2004An ITU-T Study Group 16 Project
54
MediaCom 2004 Context

• Created in recognition of
• the rapid growth in digital, wireless, and IP
  networks
• the convergence of technologies e.g.
  broadcasting, communications, information
  technology, etc.
• that multimedia topics are addressed in many
  SDOs
• the growth in multimedia services and
  applications
• the need to study performance, interworking,
  interfaces etc. for user satisfaction.

55
MediaCom 2004 Objectives
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.
56
MediaCom 2004 Goal
One of the main goals of the MediaCom2004 Project
is to reduce need for higher layer Gateway
functionality
57
Diagram of Interactivity in an Era of Convergence
ITU-R Study Group 6
USERS
58
MediaCom2004 - Timelines

• Scope and plan drafted 1999/2000 approved at
  WTSA 2000
• 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)
• Steering Committee meetings
• 23 April 2001
• 14 March 2002
• Project updating
• SG16 meeting, Brazil, May 2001
• SG16 meeting, Geneva, February October 2002
• Next review
• Other ITU-T Workshops (Emergency Telecoms,
  E-health)
• Next SG 16 meetings

59
MediaCom 2004 Interactions

• Seeking to work with
• Other ITU-T Study Groups
• ITU-R Study Groups
• IETF
• ISO/IEC
• Regional bodies, e.g. ETSI
• Industry other bodies as required

60
MediaCom2004 Work Strategy

• 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
• MediaCom 2004 Steering Committee
• Aligned Questions in Study Group 16
• Database of multimedia related standards

61
MediaCom 2004 Framework in SG16
62
MediaCom 2004 Steering Committee (SC)

• 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.
• A tool to help coordination across all SDOs
  working on MM communication standards
• Address multilateral issues
• Co-operation through discussion to provide
  customer oriented solution
• Members SGs ITU-T, SGs ITU-R, IETF, MPEG, ETSI,
  W3C, .

63
MediaCom 2004 Continued activities

• Permanent review of the project (see SG16 page at
  itu.int/ITU-T/studygroups/com16)
• Coordination is in general performed at working
  level
• Workshops represent an excellent opportunity to
  improve the communications among the different
  entities involved in the development of MM
  standards

64
MediaCom 2004Highlights from the first workshop
(IP-Networking and MediaCom 2004)

• Transition towards NGN
• E-Commerce/E-business
• MM service evolution
• Convergence/Interactive broadcast
• Service billing/accounting
• IP VPN
• MM mobility
• MM access platform
• ? for more details, please consult the final
  report of the WS (SG 16 ITU-T website).

65
MediaCom 2004 Highlights from the second
workshop (MM Convergence)

• Service and network architecture
• Security and privacy
• MM quality of service
• Broadband delivery and in-home distribution
• Interactivity in Broadcasting
• Voice/video coding and signal processing
• ? for more details, please consult the final
  report of the WS (SG 16 ITU-T website).

66
MediaCom 2004 Highlights from the third
workshop (IP/Optical)

• NGN standardisation needed to support new
  services on a large scale (new SG 13 Project)
• Network operators and service providers expect
  high profit but deployment may be slow on
  technical and regulatory grounds.
• Open interfaces and interconnection are key,
  interop with legacy systems needed for incumbents
• New broadband services provision underway
  (Hikari)
• 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).

67
Working Party 1 Modems and Facsimile Terminals
68
Status report of SG 16 activitiesModems and
Facsimile (1)

• Accessibility (Q H/16)
• Text telephony (Rec V.18) extension to include
  text telephony for mobile users
• Text telephony over IP
• 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

69
Modem-over-IP context
New Rec V.150.1 procedures for the end-to- end
connection of V-series DCEs over IP-networks
70
Status report of SG 16 activitiesModems and
Facsimile (2)

• DCE-DCE protocols for PSTN and ISDN (Q 12/16)
• Amendments to Rec V.42(possible consequences of
  V.150.1)
• DTE-DCE interface protocols (Q 13/16)
• Revision of Rec V.250(possible consequences of
  V.150.1)
• Facsimile Terminals (G3 and G4) (Q 14/16)
• Revisions to several Recs of the T-series in
  support of color fax improved TIFF spec

71
Some details on modem standards V.34

• 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
Some details on modem standards V.90

• 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
Some details on modem standards V.92

• 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
Fax-related Recommendations

• T.4, Standardization of Group 3 facsimile
  terminals for document transmission
• T.35, Procedure for the allocation of ITU-T
  defined codes for non-standard facilities
• T.37, Procedures for the transfer of facsimile
  data via store-and-forward on the Internet
• T.38, Procedures for real-time Group 3 facsimile
  communication over IP networks
• 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
Working Party 2 Multimedia Terminals and Systems
76
Multimedia terminals systems
Integration of media components from the
equipment/protocol point-of-view

• H.320 Communications over N-ISDN
• H.310 Communications over B-ISDN
• H.323 Communications over packet networks
  (mainly IP)
• H.324 Communications using circuit-switched
  services (fixed and mobile, including 3GPP)
• H.246 Multimedia Terminal Interworking
• H.248.x Interworking between H.323
  packet-based networks and the PSTN

77
ISDN multimedia terminals
Example Functional model for H.320 N-ISDN
Terminal
78
Packet-based multimedia terminals
Example Functional model for H.323 Terminal
79
PSTN multimedia terminals
Example Functional model for H.324 Terminal
80
Interoperability amongst MM terminals
81
Status report of SG 16 activities WP2 (1)

• Interoperability of MM systems and services (Q
  D/16)
• Roadmap for interoperability studies
• 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)
• 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)

82
H.235 - H.323 SecuritySecurity Protocol
Architecture
83
Status report of SG 16 activities WP2 (2)

• MM-Systems, terminals and data conferencing (Q
  1/16)
• Revision to Recs T.120, H.222.0, H.320, H.324
• 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)

84
Status report of SG 16 activities WP2 (3)

• Infrastructure and interoperability for MM over
  packet based networks (Q 3/16)
• Media gateway decomposition Rec. H.248.1
  packages add new functionality
• Video and data conf. using IP-supported services
  (Q 4/16)
• Integration of video and data, interoperability
• Mobility (Q 5/16)
• H.5xx series
• Mobility protocols and procedures
• Terminal mobility

85
Working Party 3 Media Coding
86
Status report of SG 16 activitiesMedia coding

• 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)
• 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)

87
Status report of SG 16 activities
WP3JVT-Project (1)

• New ITU-T Q.6/SG16 (VCEG - Video Coding Experts
  Group) standardization activity for video
  compression
• August 1999 1st 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

88
Status report of SG 16 activities WP3
JVT-Project (2)

• 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

89
Comparison of H.264 to existing standards(low
bit rates ? videoconferencing)
90
Comparison of H.264 to existing standards(high
bit rates? broadcasting)
91
Status report of SG 16 activities WP3audio
coding

• Wideband coding (Q 7/16)
• wideband speech coding at around 16 kbit/s
• 4 kbit/s speech coding (Q 8/16)
• procedure to continue under discussion
• Variable bitrate coding of speech signals (Q
  9/16)
• work plan under discussion
• applications 3G, VoIP, PSTN, PCME, DCME,
• Software tools (Q 10/16)
• maintenance existing coding standards
• extension of the ITU-T SW tool library

92
Working Party 4 Multimedia framework
93
Status report of SG 16 activitiesMM Framework

• 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)
• 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

94
Focus Group on Full-Service VDSL

• New working strategy to cooperate with
  Fora/Consortia complement the work of ITU-T
  Study Groups
• A.7 establishment of an arms-length organization
  of ITU-T
• Aim enable Triple Play using VDSL
• 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
• Parts 23 5 will be transformed into
  Recommendations Part 1 will be come a Supplement
  (H-Series)
• See www.itu.int/ITU-T/studygroups/com16/fs-vdsl

95
Organisation of FS-VDSL Focus Group work
Review
96
Conclusions MediaCom 2004

• Coordination and harmonisation for development of
  standards supporting converging services,
  IT/Telecommunications Broadcasting is under way
  and urgently needed
• MEDIACOM 2004 of SG16 is the umbrella for this
  activity in the field of services and
  applications
• In SG 16, work is progressing in services,
  emergency telecoms, telematic terminals, modems,
  MM Terminals (including IP telephony), and media
  coding
• Exploring new innovative ways to work and
  increase the value to the membership
• The workshops represent an excellent opportunity
  to better understand the MM work and to
  coordinate the work among the different players.

97
Media Coding Supplemental Slides
98
Telephony-band Speech Coding Families
99
Telephony-band Speech Coding Families
100
A2/A3 Non-ITU Standards

• MPEG2/Audio audio coding gt 64 kbit/s (1992)
• MPEG4/Audio audio speech coding at bit rates
  between 64 and 2 kbit/s (1998)

101
A0-A1 Non-ITU Standards

• 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
• 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
A0-A1 Non-ITU Standards (contd)

• 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
Still Image Coding Summary (1)

• Umbrella T.80 1992
• 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
• 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.
• 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
Still Image Coding Summary (2)

• Planned new common texts
• T.800 Part 1, JPEG 2000 Image Coding System
  Core Coding System
• T.801 Part 2, JPEG 2000 Image Coding System
  Extensions
• T.802 Part 3, Motion JPEG 2000
• T.803 Part 4, Conformance Testing
• T.804 Part 5, Reference Software
• T.805 Part 6, Compound Image File Format
• T.806 Part 7, Technical Report Guideline of
  minimum support function of Part-1

105
ITU-T Video Coding

• 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
• 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-T Video Coding(continued)

• 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
Non-ITU-T Video Coding

• MPEG-1/Video (ISO/IEC 11172-2)
• The first video coding standard using half-pel
  motion compensation
• Typical bit rates 1-2 Mbits/s
• 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