Mobile IPTV 추진현황 및 발전전망

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기우 민
6 years ago
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1 BcN/NGN-based Mobile IPTV Services 황철주 삼성전자

2 Mobile IPTV Standardization Review 삼성전자 2/56

3 Mobile IPTV Based on History Resolution Convenience Fixed TV (Analog) Fixed TV (Digital) Mobile TV (DMB) Flexibility Transport Convenience Fixed IPTV Mobile IPTV 삼성전자 3/56

4 Mobile IPTV Standardization Telecom Track Broadcast Track Cellular Track DVB-IPI ITU-T FG IPTV ITU-T Mobile IPTV IPTV Mobility Mobile TV IP WorldDAB DVB-CBMS Mobile IPTV 3GPP(2) OMA BCAST 삼성전자 4/56

5 Mobile Broadcast Not necessarily IP based Requires two infrastructure in harmony 삼성전자 5/56

6 Multi-protocol Encapsulation (MPE) Allows the use of IP based data in Transport Streams 삼성전자 6/56

7 IPDC (IP Datacast) Based on IP 삼성전자 7/56

8 WorldDAB Forum 유럽 Eureka-147 프로젝트에서개발된 DAB (Digital Audio Broadcasting) 의유지보수, 홍보및신규기능개발을목적으로함 DAB는 1981년부터독일 IRT에서디지털라디오시스템개발로시작되어 1987년유럽 Eureka 프로젝트로지정되었으며 2000 년에최종완성됨 현재 110여개의회원사가활동중임 삼성전자 8/56

WorldDAB Forum DAB & DMB DAB = Eureka 147 +

9 WorldDAB Forum DAB & DMB DAB = Eureka Applications (Audio + Data) DMB = DAB + MPEG4 AV 삼성전자 9/56

10 What is CBMS DVB-CBMS Bi-directional mobile broadcasting protocol spec over DVB-H Finished Phase I spec, currently Phase II work TS TS TS 102 ESG metadata HE-AACv2 H264 Subtitles Files 472 ESG container ISMACryp FLUTE RTP / SRTP ALC UDP IP / IPSEC TS DVB-H TS PSI/SI TS KSM KMM 삼성전자 10/56 2G / 3G

11 OMA BCAST Description Uni-directional one-to-many services ranging from classical broadcast to mobile multicast Bi-directional unicast paradigm in a mobile environment Goals To define an end-to-end framework for mobile broadcast Compile the set of necessary enabler Bearer independent: agnostic to BDS (Broadcast Distribution System) The interoperability of various components Cooperate with external organizations DVB (work on IP datacast over DVB-H) 3GPP (work on MBMS) 3GPP2 (work on BCMCS) And more: any IP based BDS 삼성전자 11/56

12 OMA BCAST Fully access and transport agnostic layer of specifications (Service Guide, Content Protection, Device Management, ) Enabling Mobile Broadcast Services 3GPP MBMS Native Tools 3GPP2 BCMCS Native Tools DVB-H Native Tools IP-based Enablers for Service Protection, Notifications, Delivery of Service Guide, Delivery of A/V Streams, Delivery of Files, etc. 3GPP MBMS 3GPP2 BCMCS DVB-H Any other IP-based BDS OMA BCAST has the most advanced form of Mobile IPTV OMA BCAST is only for mobile terminals OMA BCAST is not compatible with IPTV 삼성전자 12/56

13 FMC (Fixed-Mobile Convergence) Commercial IPTV Station IPTV IP Network IPTV + Mobility Mobile IPTV Terminal 삼성전자 13/56

14 Commercial IPTV Station Mobile IPTV Station IPTV IP Network Mobile IPTV Station On-site, real-time personal broadcasting over IP network Mobile IPTV Terminal 삼성전자 14/56

15 IPTV Definition of IPTV by ITU-T IPTV is defined as multimedia services such as television/video/ audio/text/graphics/data delivered over IP based networks managed to provide the required level of QoS/QoE, security, interactivity and reliability. Defined by so general terms television/video/audio/text/graphics/data : any multimedia data IP based networks : any IP based networks (wired & wireless) required level of QoS/QoE, security, interactivity and reliability : from 0 level ( best effort network ) to highest level ( NGN ) 삼성전자 15/56

16 Mobile IPTV Mobile IPTV Definition in Our Hand Mobile IPTV is defined as multimedia services such as television/video/ audio/text/graphics/data delivered over IP based wireless networks managed to provide the required level of QoS/QoE, security, interactivity and mobility 삼성전자 16/56

17 Mobile IPTV Challenges Reduced Capability Devices A/V decoders, interactive middleware Limited bandwidth Adaptability Various types of access networks, form factors, levels of processing power Mobility Mobile terminals are moving so the environment changes dynamically Service continuity Protocols and algorithms Dealing with packet loss due to wireless interference 삼성전자 17/56

Mobile IPTV Challenges Internet Internet

18 Mobile IPTV Challenges Internet Internet Satellite, BWA, xdsl, Cable, Fiber WPAN Hot spot WiFi Heterogeneous Network Handoff WiBro/HSDPA Wired/Wireless Handoff WLAN/WPAN Handoff 언제어디서나끊김없는 Video Streaming 서비스 Heterogeneous Network Handoff 삼성전자 18/56 BWA: Broadband Wireless Access

19 Mobile IPTV Challenges Environment changes (no movement) Temporal reflectors/obstacles Link condition changes with movement LOS/non-LOS Fast Fading/Slow Fading Distance from the transmitter Handover BW change due to different modulation scheme with distance BER/FER change due to shadowing QAM-64 QAM-16 QPSK BW/MTU change due to vertical HO 삼성전자 19/56

20 Mobile IPTV Challenges Packet loss is inevitable in wireless link. The perceived quality degrades sharply with increasing error rate. Typical PSNR curve without provision for packet loss 삼성전자 20/56

21 Mobile IPTV 표준현황 ITU-T FG IPTV 는 Requirements 수집차원에서종료 Mobility 에대한기본요구사항은반영됨 실제적표준화는 Parent SG 로이관된후진행예정 Mobile IPTV Question 신설제안상태 Mobile IPTV 는 TTA WG2193 을중심으로국내규격을先제정하고이를국제화하는방향으로추진중 TTA WG2193 은 7 차미팅을완료하고 IPTV 에서의이동성지원기술 이라는제목으로국내표준안초안제정중 이동성지원기술이추후 IPTV 에쉽게융합될수있도록이동성관련 High Level Requirement 를 ITU-T FG IPTV 에제안및채택 삼성전자 21/56

22 Mobile IPTV Requirements IPTV_ARC_008: The IPTV Architecture should allow the delivery of IPTV services over different access networks (e.g. cable, optical, xdsl, wireless) IPTV_ARC_010: IPTV architecture should allow the delivery of IPTV service to any kind of IPTV enabled device IPTV_ARC_011: When operating over a mobile network, the IPTV service should be able to dynamically adapt to possible change in wireless network characteristics (e.g. bandwidth, packet loss rate, etc.). 삼성전자 22/56

23 Mobile IPTV Requirements IPTV_ARC_116: The IPTV architecture should provide capabilities for the interoperability and user mobility between different IPTV networks. For instance, the IPTV service could be accessed by the customer wherever he might be and whether he's in motion or not, possibly depending on the roaming agreements that may have been defined between participating IPTV network operators 삼성전자 23/56

24 Mobile IPTV Requirements IPTV_NET_062: The IPTV architecture should not preclude service continuity over different networks. IPTV_NET_059: The IPTV architecture should support nomadism of End System. IPTV_NET_075: IPTV receiver should select at least one version amongst several versions of the IPTV content following its own decision as well as condition. 삼성전자 24/56

25 Mobile IPTV Requirements IPTV_ESI_004: Requirement # 1: The IPTV content should be delivered in several yet optional versions to be selected according to the capabilities of the IPTV receiver (e.g. access rate, resolution, supported formats, etc.). IPTV_ESI_006: Requirement # 2.1 The IPTV system may support signaling capabilities for transmitting bandwidth related information IPTV_ESI_007: Requirement # 2.2 (reworded based on Req 2) The IPTV system shall be able to identify the available bandwidth to the IPTV Terminal Device IPTV_ESI_008: Requirement # 2.3 (reworded based on Req 2) The IPTV system may use the bandwidth related information to determine the appropriate content coding means to deliver the content. IPTV_ESI_009: Requirement # 2.4 (reworded based on Req 2) The IPTV Terminal Device may be able to indicate to the IPTV system the available bandwidth IPTV_ESI_010: The IPTV system may use the bandwidth related information to determine the appropriate content coding means to deliver the content. IPTV_ESI_011: The IPTV receiver may be able to indicate to the IPTV system the available bandwidth information. 삼성전자 25/56

26 Mobile IPTV Requirements IPTV_ESI_156: The IPTV Terminal Device should support a set of relevant decoding capabilities such as, but necessarily limited, to SD and HD. 삼성전자 26/56

27 Way Forward ITU-T IPTV FG ITU-T SG13/19 TTA WG2193 Phase I ( 06) TTA WG2193 Phase II ( 07) Mobile IPTV Spec. Others SDOs 삼성전자 27/56

28 IPTV Business Perspective 삼성전자 28/56

29 IPTV Services Broadcast services Linear broadcast TV Linear broadcast TV with trick mode Pay per view Electronic program guide (EPG) On-demand services Video on demand (VoD) Push VoD 3rd party content delivery Music on demand (MoD) Game on demand (GonD) Advertising services Traditional advertising services Directory advertising services Advertising message logging Public interest services Support for users with disabilities Emergency communications Tele-services Tele-learning Tele-medicine Monitoring services Portal services Data portal Hosting services Business to business User created content (UCC) hosting CPU resource hosting Interactive services Video conferencing Games TV-based conversational services Program survey services Is that TV? IPTV looks like web! IPTV looks like telephony! This is convergence! Source : FG IPTV Official Document - IPTV Service Scenarios 삼성전자 29/56

30 IPTV One dominated by (especially) Telco giants (Overhaul) Replacements of cable or satellite services Contents provided by Hollywood and other established big media conglomerates Closed, dedicated, managed network Personalized services & targeted ads (by monitoring user behavior) Massive connectivity infrastructure upgrade Geographically bound (infrastructure deployment, regulations) User experience is bound to their living rooms and STBs IPTV vs. Internet TV Internet TV A universe of highly diversified and dynamic independent production (Outgrowth) Niche entertainment business Contents provided by large numbers of small and medium-sized producers, UCC Open, shared, best effort network User monitoring is restricted Riding on existing infrastructure Global basis Anywhere, any IP-enabled device Deeply integrated into the existing Internet user experience 삼성전자 30/56

31 IPTV vs. TV IPTV TV Needs installation to add users QoS/QoE issues critical No burden to add users No QoS/QoE issues 삼성전자 31/56

32 Managed Network / QoS Guaranteed The only advantage of IPTV over Internet TV Requires huge investment in both infrastructure and research Never can be perfect like traditional TV Not so important these days The importance of liveness becomes less and less except for sports and hot news Complex user lifestyle Many alternative channels Now users rule Buffered play works except for live broadcast 삼성전자 32/56

33 Market Research of IPTV ( 06, US) Pay TV Market Saturation 90% of Household Saturated No needs for more channel Digitalization: Only 46% of Cable Subscribers Expectation of IPTV Low Price, Only 16% shows interests Users don t know the real value of IPTV 삼성전자 33/56

34 Kano Curve Satisfaction Interactive Personalized Attractive Linear Price Maturity Basic QoS/QoE Number of channels 삼성전자 34/56

35 IPTV Strategy IPTV is not efficient for one to many delivery IPTV can not be replacement of existing TV systems IPTV is not TV IPTV is a new service of convergence IPTV should pay attention to IP instead of TV IPTV should take advantage of the flexibility of IP and the usability of TV 삼성전자 35/56

Potential of IPTV New Ingredients: IP (Internet Protocol) Every Every Kind Kind of of Services Services Available Available IPTV: IPTV: One One of of Them Them Supported Supported by by Every Every

36 Potential of IPTV New Ingredients: IP (Internet Protocol) Every Every Kind Kind of of Services Services Available Available IPTV: IPTV: One One of of Them Them Supported Supported by by Every Every Device Device Major Major Market Market Ready Ready Intrinsic Intrinsic Interactivity Interactivity Support Support Not Not New New to to TV TV No No Killer Killer Scenario Scenario Developed Developed Yet Yet Individually Individually Reachable Reachable Not Not Explored Explored Yet Yet Interactivity must be combined with individuality to reveal its real power! 삼성전자 36/56

37 Individuality and Two Way 신규핵심차별적가치가능 WYW Service 사용자 Feedback 활용 Longtail Support 개인방송국 Solution WYW: Whenever-You-Want Location Dep. Contents 콘텐츠동호회 콘텐츠공동제작 삼성전자 37/56

38 Individuality and Two Way Actvila : DTV portal service in Japan 100,000 subscribers in 3 months No video service yet Video service will launch 3Q 2007 요리배달관 Localized service 삼성전자 38/56

39 Why Mobile IPTV The first embodiment of the ultimate service: ubiquity + IP + personal The Mobile IPTV service platform will allow other IP based services to be easily integrated: e.g. VoIP The Mobile IPTV will be the bridge to the hegemony over ubiquitous IP based multimedia services 삼성전자 39/56

40 Even Worse Than IPTV No Major Market Growth is sluggish Mobile TV 의현주소 Mobile TV 제약 사용시간이절대적으로적음 Mobile Contents 부족 이동중의소형스크린시청의불편 Live Contents에대한요구감소 시청시간이 Random 삼성전자 40/56

41 새로운개념의창출필요 현사업의한계극복 Mobile IPTV? 양방향 CATV 대비차별화된장점없음 IPTV 의한계 이동시청의한계 Mobile 向 Contents 부족 Liveness 에대한요구감소 Mobile TV 의한계 Entertainment 만으로는수요확대불가능 Mobile 의한계 삼성전자 41/56

Mobile Device Limitations 극복필요 모바일단말의제약제약

42 Mobile Device Limitations 극복필요 모바일단말의제약제약 추진방향 Hardware 제한된입력장치 작은화면사이즈 Device 제어최소화 Network User Behavior Use Environment 긴대기시간 재생품질저하 즉시성 목적지향성 ( 위치, 상황, 조건 ) 짧은사용시간 Random한이용시간 Contents 전송방법개선 Contents 제공방법의지능화 Short Contents VoD Model 삼성전자 42/56

43 Mobile IPTV Strategy Not only entertainment but also necessity Information agent Communicator (e.g. VoIP) On demand services Personalized/Intelligent Person Location Time Participation/Sharing/Openness On-site broadcast Social Networking Advanced UI Widgets 삼성전자 43/56

44 Mobile IPTV Business (1/2) Regards Mobile IPTV as a IP-based multimedia service platform Services Core Access End Systems VoD VoIP Messenger LBS* SNS* Legacy Network Wired WiFi WiBro 삼성전자 44/56

Access End Systems Livecast MoIP Interactive Gaming

45 Mobile IPTV Business (2/2) Regards Mobile IPTV as a IP-based multimedia service platform Services Core Access End Systems Livecast MoIP Interactive Gaming Advanced Services NGN/IMS Wired WiFi WiBro 4G 삼성전자 45/56

46 NGN/IMS-based Mobile IPTV 삼성전자 46/56

47 NGN Definition A packet-based network able to provide telecommunication services and able to make use of multiple broadband, QoSenabled transport technologies and in which service-related functions are independent from underlying transport related technologies. It enables unfettered access for users to networks and to competing service providers and/or services of their choice. It supports generalized mobility which will allow consistent and ubiquitous provision of services to users. Characteristics Packet-based Broadband, QoS-enabled Service stratum and transport stratum Generalized mobility Nomadic Seamless service (optional) 삼성전자 47/56

48 NGN Mission Application 요구 E2E QoS 보장 유무선통합 Seamless Mobility Robustness 사고또는고의적인망훼손대응 바이러스에의한비정상적인트래픽증가대등 SLA 따른사용자별차별화서비스제공 멀티캐스트, 다자간통신메커니즘을지원 방송서비스, 공동작업형서비스대응 사업자간연동및이를위한관리정보공유 순조로운 IPv6 망으로전환 다양한유무선액세스망수용 공익형서비스지원 E119 등에서의위치정보제공, 긴급통신우선적처리 삼성전자 48/56

49 NGN (Next Generation Network) 삼성전자 49/56

50 NGN Convergence of telephony and the Internet 삼성전자 Source: NGN Services by Telcordia 50/56

51 NGN vs. IMS Source: IMS Overview by Bertrand IMS is a subsystem of NGN IMS + NASS/RACS almost equals NGN IMS and NGN shares its philosophy of origination Network management saving: control and bearer separation E2E architecture: access agnostic Critical treatment of QoS Horizontal architecture Cure for decreasing ARPU for network operators: more than bit-pipes Easy service launching & bundling 삼성전자 51/56

Network, Transport Core NASS: Network Attachment Subsystem RACS:

52 NGN/IMS Architecture Source: IMS Overview by Bertrand App Layer: HSS, AS Control Layer Transport Layer: NASS, RACS, UE, Access Network, Transport Core NASS: Network Attachment Subsystem RACS: Resource Admission Control Subsystem 삼성전자 UE: User Equipment 52/56

53 QoS Management in NGN/IMS Supported level of QoS determines services Two strategies in IP packet networks Avoiding congestion Admission control, reservation, over-provisioning IntServ, MPLS networks with RSVP Guaranteed QoS Managing congestion DiffServ Relative QoS What about wireless link? 삼성전자 53/56

54 Mobility Management in NGN Joint work by SG13/19 Finished requirements (Q.1706) 단말위치등록, 위치질의및응답, Packet Forwarding 세션연속성을위한 Handover Source: 정희용 NGN 에서 mobile IPTV 지원을위한이동성관리표준화이슈 삼성전자 54/56

55 Mobility Management in NGN Possible solutions are Mobile IP and Multi-homing For seamless, network support required IEEE Media Independent Handover Source: 정희용 NGN 에서 mobile IPTV 지원을위한이동성관리표준화이슈 삼성전자 55/56

56 Conclusion Standardization Various SDOs: DAB, DVB, OMA, ITU, etc. No major battle field Business Perspectives IP version of mobile TV: no differentiated value New ingredient (IP) must be exploited Individually reachable Intrinsic two-way Mobile IPTV Potentials The ultimate service: ubiquity + IP + personal Mobile IPTV is a IP-based multimedia service platform Let s start with available services NGN/IMS-based Mobile IPTV NGN/IMS can benefit greatly Mobile IPTV in QoS and MM More research and standardization required, especially for wireless characteristics 삼성전자 56/56

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