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行動電視 (Mobile TV) 技術簡介

行動電視 (Mobile TV) 技術簡介. 王鴻智博士 mikewang@teco.com.tw (02)2655-8255x2101 2006 July 6. 行動電視的最新的發展與趨勢. 行動電視的相關技術簡介. 由各國數位電視服務來看台灣 行動電視服務未來的發展. How Mobile Phone be Developed?. 2003 1 st Game and Video phone (Nokia) 1sr rotated screen (Samsung). 2002 1 st Camera phone 1 st Smart Phone.

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行動電視 (Mobile TV) 技術簡介

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  1. 行動電視(Mobile TV) 技術簡介 王鴻智博士 mikewang@teco.com.tw (02)2655-8255x2101 2006 July 6

  2. 行動電視的最新的發展與趨勢 行動電視的相關技術簡介 由各國數位電視服務來看台灣 行動電視服務未來的發展 王鴻智博士演講資料

  3. How Mobile Phone be Developed? 2003 1st Game and Video phone (Nokia) 1sr rotated screen (Samsung) 2002 1st Camera phone 1st Smart Phone 1999 Nokia 7110 1st WAP phone 1997 1st color display (Siemens) 2006? 1995 Bosch M-cam < 200g 1993 Panasonic I series 1989 Motorola MicroTAC 1986 Nokia Talkman 4.8Kg 2005 VK530 1st HSDPA with 3G video call and Internet access phone 2004 1st 2M pixel with optical camera (Sharp 902) 2000 1st MP3 phone (Samsung) 1996 Nokia 9000 1st PDA phone 1998 1st dual band (Siemens) 2001 1st 3G phone 1st TFT display 1st bluetooth 1st integrated FM 1994 Nokia 2140 w/ SMS Pioneer technology: Motorola, Nokia, Siemens ID technology: Samsung Display: Sharp 1992 1st GSM (Motorola) 1985 First portable phone 1987 Siemens C2 王鴻智博士演講資料

  4. Trend of Mobile Phone Development What's Next? Camera, Game and Video WAP color display B/W SMS 王鴻智博士演講資料

  5. Chat Download Music Mobile TV Interoperability Contact Sharing Internet Calendar Money Camera & Video Phone phone call Photographic SMS/Email Mobile Phone: Hub of Service Consume Exchange Carry 王鴻智博士演講資料

  6. The Definition of Mobile TV • Mobile TV (行動電視) is the system can transmit the TV stream to a mobile device anytime and anywhere. In Taiwan, these mobile devices could be car STB, PDA, mobile phone etc. • Not necessary to be “two way communication” or “interactive”. • Not necessary to be “broadcasting”. • Not necessary to be “hand hold” portable. • In this talk, we focus on the mobile phone as the mobile device. • It is “two way” communication • It is “hand hold” portable Nokia 7710 DVB-H Handset Nokia 7700 王鴻智博士演講資料

  7. Broadcasting One way, in general Free service, in general Audio, Video and data (e.g. teletext etc.) TV operation is simple (channel/voice up/down) Comparison between DTV and Mobile DTV Mobile Phone • Point-to-point delivery • Two way • Subscription fee + bandwidth usage fee • Voice phone service + add on interactive service • Some add on services’ operation is complex 王鴻智博士演講資料

  8. Digital Converge Between Mobile & TV • DTV-T Operator • Looking for new add-on service • Looking for new business model • Content Aggregator • New channel to sell content (AV • and game) • Taiwan government’s 2B2S project • needs new market, too • Customer • I have personal phone and why • I don’t have personal TV? • Immediately access on the news • (political, rumor, stars) in video • format in stead of text only • Manufacture • Taiwan has 6.5M Household and more • than 10M TV set • In average, each young Taiwanese • Has more than 1.5 mobile phone set • New technology introduce new • revenue • Mobile Phone Operator • Looking for new add-on service • Looking for new business model 王鴻智博士演講資料

  9. Success Factor of Mobile TV Partnership Low Subscription Cost • Need the well corporation between • TV station, content generator, mobile • operator, manufacture etc. • Common standard is required. In • Taiwan, DTV-Taiwan is discussing • the common mobile TV standard • TV is free broadcasting, then • why I need to pay much for • mobile TV service? • Video screen is small and low • quality, then I don’t want to • pay much for a PPV program Rich in Content High Integration Handset • Content is the king, no content then • no service • Special content generated for mobile • phone only (resolution and size) • Content protection will be an very • important issue for high value added • content • Mobile TV will target to young • customer at first • Hand set is always the key issue of • the intend of customer’s subscription • Young customer needs all services • and function even though they don’t • need it 王鴻智博士演講資料

  10. 行動電視的最新的發展與趨勢 行動電視的相關技術簡介 由各國數位電視服務來看台灣 行動電視服務未來的發展 王鴻智博士演講資料

  11. Technical Challenge Power Spectrum Efficiency • Battery operated • Panel/backlight needs more power • Low power consumption on DTV • Tuner (less than 10% of total) • Video data size is much larger than • voice data size • Interactive service Simplicity Signal Receiving • Easy in operation • Light weight (no big battery, tuner • or antenna is required) • Content protection is a issue but do • NOT stop customer’s intend • Anti-Doppler effect (close/away) • High C/N due to channel fading • Indoor reception via small antenna • Signal in high speed environment • Switch over from one to another • service area 王鴻智博士演講資料

  12. Plenty of Standards • Digital Audio Broadcasting-based systems • DAB (radio broadcasting) • DMB (Korea starts it since 2005) • T-DMB (based on DAB Eureka 147): Samsung, KBS, ETRI • S-DMB (based on DS-CDM): SK Telecom and MBCO (Toshiba, Sharp, Toyota etc.) • Terrestrial Digital Video Broadcasting based systems • DVB-T (TV broadcasting) • DVB-H • Nokia, Philips, Sony, Panasonic, Teracom • Mobile Network 3G based systems • MBMS of UMTS or S-UMTS, HSDPA (3.5G) • Other systems • MediaFLO (USA) • ISDB-T (Japan) • WiMAX of WiFi DAB DMB DVB-T DVB-H UMTS MBMS 王鴻智博士演講資料

  13. Concept of Ideal Mobile TV Reception Content Broadcast link DVB-T, DVB-H, DAB, DMB etc. Broadcast/Multicast Mass Media operator Interactivity link 3G, UMTS, MBMS HSPDA etc. End Device Interactive/Unicast Personal Media Access networks 王鴻智博士演講資料

  14. Why DVB-H? • DVB-H stands for Digital Video Broadcasting for Handhelds • Using 3G to deliver high speed high bite rate services to a large number of users is costly • Broadcasting is a relatively inexpensive way of distributing lots of data at high speed to a large number of users • Handheld devices have particular requirements in terms of power consumption, screen size and mobility • DVB-H could link unknown mobile DTV market with a success handheld market • Terrestrial company looking for subscriber for mobile DTV service to expand the market share • Mobile phone and PDA subscribers are huge and keeping growing now 王鴻智博士演講資料

  15. region 1 (SFN) DVB-H playout DVB core Playout Server service Application provider region 2 (SFN) Requirement on DVB-H • Operation in battery life • Current DVB-T standard is not designed for handheld device in power consumption consideration • Ability to receive 15Mbps data in a 6-8 MHz channel • Ability to receive data in a wide area single frequency network (SFN) at high speed • Emerging convergence devices providing video and data broadcasting services to 2.5G and 3G handheld device • Maintaining maximum compatibility with existing DVB-T network and system 王鴻智博士演講資料

  16. Concept of DVB-H System 王鴻智博士演講資料

  17. Major Technology in DVB-H (1) • Time Slicing • To transmit data in periodic bursts with significantly higher instantaneous bit rates (IP datacast carousel) than the bit rates required if the data are transmitted continuously • Receiver could be “inactive” or “switch-off” by clever control signal, and this can save more than 90% power in some cases • One front-end to monitor neighboring cells during off-time for hand-over supporting continuously time slicing 王鴻智博士演講資料

  18. Major Technology in DVB-H (2) • 4K-Mode is added • An interpolation of 2K and 8K modes • If offer the same bitrate capability, the physical characteristic are different 王鴻智博士演講資料

  19. Major Technology in DVB-H (3) • 4K mode offers a more flexible mobile network plan than DVB-T • 2K mode: high speed, small area • 8K mode: low speed, large area (poor Doppler tolerance) 王鴻智博士演講資料

  20. Major Technology in DVB-H (4) • In Depth Inner Interleave in 2K and 4K modes • Save memory and demodulation time in receiver • Better immunity to ignition interference 王鴻智博士演講資料

  21. Major Technology in DVB-H (5) • Tolerance to impulse interference will be improved 4K mode ‘8K’ performance is close to 8K mode ‘8K’ 王鴻智博士演講資料

  22. Major Technology in DVB-H (6) • MPE-FEC • An optional, multiplexer level, Reed Solomon Forward Error Protection Code “RS(255,191)” • To avoid the deep fading during mobile receiving and weak signal environment (tolerance to impulse noise) MPE-FEC: Multi-Protocol Encapsulation-Forward Error Correction MPE-FEC Table 王鴻智博士演講資料

  23. Major Technology in DVB-H (7) • MPE-FEC gives clear 7-8 dB benefit with impulse noise (DTG6) • 7 dB benefit with “streaming error criteria” (IP PER < 10^-2) • 8 dB benefit with “file delivery error criteria” (FER <10^-3) Source: DVB 王鴻智博士演講資料

  24. Nokia 7700 (2003/11) DVB-H prototype handset GSM/GPRS/EDGE+DVB-H DVB-H Reference Terminal (1) 王鴻智博士演講資料

  25. DVB-H Reference Terminal (2) DELL AXIM X30 PDA Siemens Concept Device • Linux based solution • DiBcom DVB-H front end (2005/1 • world first DVB-H IC: DIB7000-H) • VLC player with A/V decoder • plug-in • Intel XScale PXA270@624MHz • (ARM V5.0) • DVB-H receiver (2005/3) • Mobile phone combination • Complete decoding chain via • software IPs 王鴻智博士演講資料

  26. DVB-H Reference Terminal (3) Nokia N92 • Watch up to 4 hours TV programs • 2.8” LCD with 16M color display • 30 sec replay, 30 min recording • MP3 & FM radio • 2Mp camera Samsung DVB-H Phone • DVB-H + CDMA (2005/3) 王鴻智博士演講資料

  27. Summary on DVB-H • DVB-H is meant for IP-based services via MPE insertion • DVB-H can share DVB-T multiplex with MPEG2 services • Portable/indoor coverage should be built to the network for fully exploit the DVB-H possibilities business • Gives additional features to support handheld/portable and mobile reception • Battery saving • Mobility with high data rates, single antenna reception, SFN networks • Impulse noise tolerance • Increased general robustness • Support for seamless handover • Major Technology • Time-slicing for power saving • MPE-FEC for additional robustness and mobility • 4k mode for mobility and network design flexibility 王鴻智博士演講資料

  28. Comparison between DVB-H and DMB Compatibility Transmission Power • DVB-H on DVB system (TV) • DMB on DAB system (Radio) • DMB requires less power per MUX • but needs 4 MUX to provide the similar • data rate as DVB-H • For same data rate, DMB requires • more transmission power • DVB-H needs denser network Add-On Feature • DMB and DVB-H have the similar • add-on feature (EPG, audio, video, • data etc.) Transmission Power Cost Efficiency Video Service • For data capability demand > 7.3 Mbps, • DVB-H is better; if < 3.5 Mbps, DMB is • Better; in between, either is ok (Study of • Swedish Radio 2005) • DMB: narrow bandwidth (1.536 MHz) • DVB-H: wider bandwidth (5-8 MHz) • DMB (5) vs DVB-H (20) video service • in one MUX 王鴻智博士演講資料

  29. Characteristics of ISDB-T • BST-OFDM (Band Segmented Transmission of OFDM) • Able to be separated up to 3 layers • The central one segment can be used for portable reception • Partial reception allows us to detect as Radio broadcasting 王鴻智博士演講資料

  30. Standard in Mobile Phone DRM OMA DRM • OMA DRM V1: developed already • (2006/3/3) • OMA DRM V2: under developing • (testfests in Seoul, Korea) Mobile Broadcast Content Protection • Standard ongoing in OMA and DVB-CBMS for • DVB-H • Standard for DMB is ready: DAB CA by World • DAB Forum OMA: Open Mobile Alliance http://www.openmobilealliance.org CBMS: Convergence of Broadcasting and Mobile Service 王鴻智博士演講資料

  31. 行動電視的最新的發展與趨勢 行動電視的相關技術簡介 由各國數位電視服務來看台灣 行動電視服務未來的發展 王鴻智博士演講資料

  32. Korea trial (DMB) • Active Mobile TV and interactive services Finland: Oslo trial (DMB) April 05 Helsinki trial (DVB-H): Finnish Both on Mobile TV Switzerland (2005) Swisscom (DVB-H) Berlin bmco trial (DVB-H) • June 04- Sep 04 • Mobile TV and interactive services Oxford trial (DVB-H) • Spring 2005 • Mobile TV Malaysia (DVB-H) • MiTV (2005) Spain (DVB-H) • Barcelona, Madrid, Valencia, and Seville • 2005/9-2006/2 Netherlands (DVB-H) • Digitenne, KPN, Nozema • Start from 2005 France (DVB-H) • FSR, Canal+ (2005) Munich MBC Initiative (DVB-H) • June 05 - Sep 06 • Mobile TV and interactive services Japan trials (ISDB-T) • Beginning of 2005 • Free TV & Interactive Advertising Taiwan • Beginning of 2005/Q3 • CTS: DVB-H Australia (2005) • Telstra • The Bridge Network Pittsburgh trial (DVB-H) • by Modeo @End of 2004 • Pay TV • Other spectrum than UHF/VHF Singapore trial (DVB-H) • Jun 04 • Mobile TV and interactive services World Mobile Phone Trial DMB/DXB-Trials IRT / IFA Berlin 05 DMB Trials Eureka project “mifriends”starting Jan 06 王鴻智博士演講資料

  33. Finnish Mobile TV Result Finnish Trial (1) Source: Finnpanel 2005/8 王鴻智博士演講資料

  34. Finnish Trial (2) Source: Research International Finland 2005/8/31 王鴻智博士演講資料

  35. Finnish Trial (3) Source: Research International Finland 2005/8/31 王鴻智博士演講資料

  36. Finnish Trial (4) Source: Research International Finland 2005/8/31 王鴻智博士演講資料

  37. Watching time of mobile TV and traditional TV are complementary. New peak time, personal content and additional TV Fixed monthly fee is widely accepted and the best business model (with monthly fee EURO4.9). 82% in Berlin Trial (BMCO) would like to pay extra EURO12.5 for mobile TV. 55% in Spain Trial would like to pay EURO5.0 for mobile TV Customer’s top3 categories are entertainment, sport, news. In Oxford Trial: News (44%), Sport (36%) and Music (32%) are the top 3. In BMCO, the top 3 programs are News, Sport and Music, too. 41% of pilot participants will buy the mobile TV service in the future 76% in Oxford Trial will take mobile TV service within 12 months 58% of pilot participants believe mobile TV is the future trend 83% in Oxford Trial satisfied on the mobile TV service 78% in Berlin Trial (BMCO) believe mobile TV is the future trend 75% in Spain Trial would like ot recommend mobile TV service In average, about 20 minutes (Oxford: 23 min, BMCO: 11-15 min, Spain: 15-20 min 71%, 25 min or above 17%) viewing per day the top 3 usages in Finnish Trial: traveling via public transportation, at home and at work The top 3 usage in Oxford Trial: at home (36%), at work (23%) and in public transportation (21%) Summary of Finnish Trial 王鴻智博士演講資料

  38. The Future Trend of Taiwan Mobile TV Business Model Content • Monthly subscription fee will work • but on demand service may not work • well in Taiwan • Content package is a good idea for paid • per view service • Push advertisement before watching the • free TV program in order to cover the • monthly subscription fee (benefit to both • TV station, customer and advertiser) • Free phone set or subscription fee by • watching minimum advertisement • TV shopping to earn more revenue • Need to generate the special content • for mobile TV market • How to made a 10-second ad. content to • catch customer is a new challenge to • content generator • Modified content popular in Internet • will be a new resource of mobile TV • DRM is an issue but no research so far • News, Traffic and Music will be the • Taiwanese favorite categories Standard • DVB-H will happen in Taiwan in 2008 王鴻智博士演講資料

  39. Thank You for Your Attendant! 王鴻智博士演講資料

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