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  • Ubiquitous Visual Communication

    Sept. 2005

    New Business Planning Group

    -- 22 --

    Agenda

    Business TrendBusiness Trend

    KTs Business Direction KTs Business Direction

    Technology OverviewTechnology Overview

    Future Business TrendFuture Business Trend

    Service ConceptService Concept

    136

  • -- 33 --

    . Service Concept

    Seamless Visual Communication with Anyone, Any device, and at Anywhere

    u-Home u-Office

    u-Outdooru-Car

    With With AnyoneAnyone

    With With Any DeviceAny Device

    AnywhereAnywhere

    SeamlessSeamlessMobilityMobility

    -- 44 --

    Visual Communication Service Based on Wired & Wireless Network

    U- Office

    G/W

    All IP Managed Core Network

    U-Road

    . Service Concept

    U-Home

    G/WMobile

    Access Network

    Wired Access Network

    WirelessAccess Network

    Platform (Service, Application & Control)Platform (Service, Application & Control)

    ApplicationApplication ApplicationApplication ApplicationApplication ApplicationApplication

    137

  • -- 55 --

    Technical Aspect of the Ubiquitous Visual Communication

    Advanced network (QoS, convergence, security)

    Seamless roaming & flat handover

    Technical development of visual-media process

    . Technology Overview

    Media ProcessTechnology

    Media ProcessTechnology

    Codec SoftwareTechnology

    Codec SoftwareTechnology

    AdvancedNetwork

    AdvancedNetwork

    Seamless Roaming& Handover

    Seamless Roaming& Handover

    Embedded SystemTechnology

    Embedded SystemTechnology

    Display / GraphicTechnology

    Display / GraphicTechnology

    UbiquitousVisual Communication

    -- 66 --

    Network Quality (IP QoS) Level Setup/Management Voice/Video Quality Level Setup/Management

    Call Setup Call Call Release

    Connection Qual.

    Call setup Time(Voice, Video)

    Voice Quality

    MOS,PESQ etc.

    Video Quality

    PSNR,FPS etc.

    Network Quality

    Packet Loss, Delay, Bandwidth etc.

    LipSync.

    Release Qual.

    Call Release Time,Accuracy of Billing

    Component

    Of Quality

    Management

    IP Network Resource Control- Call Admission control- Bandwidth Brokerage

    802.1p / DiffServ / MPLS

    Call ConnectionProcess Control(SSW & ServerProcess Ability etc.)

    Call Connection Release Management(SSW & ServerProcess Ability etc.)

    Billing InformationManagement

    Core NetworkAccess Network Access Network

    SER SER

    Network Evolution: QoS

    Network setup and management

    Voice/video quality level

    Method

    Of Quality

    Guaranty

    . Technology Overview

    138

  • -- 77 --

    Major Issues of Technology

    Extending battery life

    Using multi-media services with mobile services free of battery life

    Quality of Service (QoS)

    QoS standards : WCDMA, 802.11a/b/g, 802.11e, broadband network

    - Supporting without packet delay, loss,

    - Internetworking between wired and wireless network

    Security

    Protecting data whenever roaming & handover between different devices & networks

    Wireless infrastructure

    WCDMA, WiBro(2.3G), WiMax, WiFi extending service coverage

    Fast & secure handover

    A session is transparently switched to the new point, minimizing the signal delay.

    Seamless roaming

    Supporting user authentication and the transparent handoff

    Providing interoperability of different networks

    e.g) UMA, SCCAN, MobileIGNITE

    . Technology Overview

    -- 88 --

    Seamless Mobility

    Fast & Secure Handover

    Chantry networks (acquired by Siemens) virtual network service

    Meru networks patent-pending, Meru Air Traffic Control Technology

    Seamless Roaming

    - Avaya,Motorola and Proxim have collaborated to provide a proprietary

    roaming solution for Motorola CN620 dual mode deviceSCCNA

    - Offers a hosted dual mode solution, One phone, being tested by at least one operator in Europe

    LongBoard

    - Provide interoperability testing, aim to help deliver end-to-end dual

    mode systems to carriers.Mobile IGNITE

    - Define network elements and protocols that support user authentication

    and the transparent handoff of calls based on both Wi-Fi and Bluetooth

    UMA

    Technology

    Detail

    UMA (Unlicensed Mobile Access), SCCAN (Seamless Converged Communication Across Networks)Mobile IGNITE(Mobile Integrated Go-to-Market Network IP Telephony Experience)

    . Technology Overview

    139

  • -- 99 --

    Image Media Process

    Characteristics of image media

    0.0E+00

    8.0E+04

    1.6E+05

    2.4E+05

    3.2E+05

    4.0E+05

    4.8E+05

    0 25 50 75 100 125 150 175 200 225 250

    sec

    bits/t

    ime_unit

    time unit = 0.5 sec

    0.0E+00

    6.0E+05

    1.2E+06

    1.8E+06

    2.4E+06

    3.0E+06

    3.6E+06

    0 250 500 750 1000 1250 1500 1750 2000 2250 2500

    sec

    bit

    s/t

    ime

    _u

    nit

    time unit = 5 sec

    Time scale : 0.5 sec

    Time scale : 15 sec

    < Example of Image Media Burst: Star Wars >

    352*28864~1,920 kbps73 MbpsVideo

    Phone

    1920*108020 Mbps1,493 MbpsHDTV

    720*4804~8 Mbps252 MbpsNTSC

    Video

    MPEG-1 Layer 3128 kbps768 kbpsBroadband

    Audio

    fs=16 kHz,

    14 bits/sample32~64 kbps224 kbps

    Broadband

    Voice

    fs=8 kHz,

    8 bits/sample5.3~64 kbps64 kbps

    Narrowband

    Voice

    Note

    After

    Compressing

    Bit rate

    Before

    Compressing

    Bit rate

    Category

    < Image Media Data Volume >

    . Technology Overview

    -- 1010 --

    Image Media Process

    Codec Standard

    Cooperation & Competition between ITU-T & MPEG (?)

    2000Still-Image, Motion JPEG CodingJPEG 2000

    1994Colored Still-Image CodingJPEG

    2003.5Visual Communication,

    Broadcasting, Streaming14496-10(MPEG-4/10)

    2003.5Visual Communication,

    Broadcasting, StreamingH.264

    2001Multimedia description & indexing MPEG-7

    1999Streaming (Mobile, Internet)14496-2 (MPEG-4)

    1994DVD, Broadcasting (DTV, HDTV)13818-2 (MPEG-2)

    1993Video CD11172-2 (MPEG-1)

    ISO/IEC

    1995, 1998 (H.263+)Visual Communication & ConferenceH.263

    1995DVD, Broadcasting (DTV, HDTV)H.262

    1990Visual Communication & ConferenceH.261

    ITU-T

    YearApplicationCodecOrganization

    . Technology Overview

    140

  • -- 1111 --

    Image Media Process

    Improvement of image coding efficiency : compression ratio improvement

    Leading codec technology : H.264

    H.264,

    WMV(V

    C-9)

    10K 100K 1M 10M

    H.261

    MPEG-1

    MPEG-2

    H.263

    MPEG-

    4

    WMV

    Bit-rate

    videoquality

    ADSL VDSL FTTHPSTN

    . Ubiquitous Visual Communication Technology

    -- 1212 --

    [ Mobile Video Service Revenue, 2003-2007 ]

    1,500% 1,500% (2004(2004 ))

    Video TelephonyVideo Telephony

    Video Messenging(P2P)

    Information

    Resource : Yankee Group (2004)

    Research based on 3,200 European consumers

    0

    0 .1

    0 .2

    0 .3

    0 .4

    0 .5

    0 .6

    2 0 0 3 2 0 0 4 2 0 0 5 2 0 0 6 2 0 0 7 2 0 0 8

    Revenue

    2,830% 2,830% (2004(2004 ))

    Wired Video Telephonny

    Resource : Analysis Research (2004)

    Research based in France, Germany, Italy, Spain, Sweden, and England

    [Wired Video Service Revenue, 2003-2008]

    . Business Trend

    Visual Communication in the Market

    Current visual communication usage rate is very low; however, Yankee Group and Analysis Research have predicted wireless visual communication to reach fifteen times the current usage rate, and wired video communication, approximately 30 times higher.

    Entertainment

    Video Telephony

    Revenue

    Video TelephonyVideo Telephony

    141

  • -- 1313 --

    Domestic Service Provider Market TrendIncreasing number of telco enters the market according to BB Internet and MICs BcN test service

    Common carrier & special category telco operator : already in service and some (HTI, etc.) plans to enter the market by the end of 2005

    Mobile operator : video telephony over WCDMA(3G)

    Special Category

    Telco Operator

    From October 2002 (currently services 2000 domestic users, 2000 overseas users)SeeTalk

    From February 2002 (MICs Videophones for handicapped persons, Samsung Raemian APT)Anyuser.Net

    Soft phone (from November 2004)Onse

    Synchronous(CDMA2000 1x EVDO), packet-based Cellular+GPS phone, DMB-only mobile device

    SKT

    Mobile Operator

    Plans to launch video telephony service and MM IM service (voicecommunication and videoconferencing)Dacom

    Common Carrier

    Asynchronous (W-CDMA), circuit-based 64KbpsKTF

    From February 2003 (softphone type, 30,000 users)i2line

    From March 2004 (100 C&Ss videophones for each company)Serom C&T,MOOHANNET

    Digital Video Telephony : to 33 Apartments (from October 2004)Various MM-based VAS

    HTI

    Allup Prime : video telephony service with videophones and softphones (from November 2004)KT

    Current StatusCompanyClass

    . Business Trend

    -- 1414 --

    Foreign Service Provider Market Trend

    China : China Telecommunications

    Launched enterprise, personal, and public visual communication service on 2003

    USA : Time Warner Cable, 8X8

    TWC : Pilot test in Austin Texas (0.14 million subscriber, free, survey & construct)

    8X8 :