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DVB-H (Digital Video Broadcasting - Handheld) is one of three prevalent mobile TV formats. For the chemical compound see Divinylbenzene. Digital Video Broadcasting ( DVB) is a suite of internationally accepted A mobile device (also known as cellphone device, handheld device, handheld computer, "Palmtop" or simply handheld) is a pocket-sized It is a technical specification for bringing broadcast services to mobile handsets. DVB-H was formally adopted as ETSI standard EN 302 304 in November 2004. The European Telecommunications Standards Institute ( ETSI) is an independent non-for-profit Standardization organization of the Telecommunications The DVB-H specification (EN 302 304) can be downloaded from the official DVB-H website. [1] From March 2008, DVB-H is officially endorsed by the European Union as the "preferred technology for terrestrial mobile broadcasting". The European Union ( EU) is a political and economic union of twenty-seven member states, located primarily in [2][3][4][5] The major competitor of this technology is Digital Multimedia Broadcasting (DMB). Digital Multimedia Broadcasting ( DMB) is a Digital Radio transmission system for sending Multimedia ( Radio, TV DVB-SH (Satellite services to Handhelds) now and DVB-H2 in the future are possible enhancements to this technology, providing improved spectral efficiency and better modulation flexibility. DVB-SH, Digital Video Broadcasting - Satellite services to Handhelds, is a physical layer standard for delivering IP based media content and data to handheld terminals such Spectral efficiency, spectrum efficiency or bandwidth efficiency refers to the amount of information that can be transmitted over a given bandwidth in a

Contents

Technical explanation

DVB-H Frame structure
DVB-H Frame structure

DVB-H technology is a superset of the very successful DVB-T (Digital Video Broadcasting - Terrestrial) system for digital terrestrial television, with additional features to meet the specific requirements of handheld, battery-powered receivers. DVB-T is an abbreviation for Digital Video Broadcasting – Terrestrial; it is the DVB European-based consortium standard for the broadcast transmission of

DVB-H can offer a downstream channel at high data rates which can be used as standalone or as an enhancement of mobile telecommunication networks which many typical handheld terminals are able to access anyway.

Time slicing technology is employed to reduce power consumption for small handheld terminals. Time slicing is a technique used by the DVB-H technology for achieving high power-saving effect on terminal devices IP datagrams are transmitted as data bursts in small time slots. Each burst may contain up to two megabits of data (including parity bits). There are 64 parity bits for each 191 data bits, protected by Reed-Solomon codes. Reed-Solomon error correction is an Error-correcting code that works by Oversampling a Polynomial constructed from the data The front end of the receiver switches on only for the time interval when the data burst of a selected service is on air. Within this short period of time a high data rate is received which can be stored in a buffer. This buffer can either store the downloaded applications or playout live streams.

The achievable power saving depends on the relation of the on/off-time. If there are approximately ten or more bursted services in a DVB-H stream, the rate of the power saving for the front end could be up to 90%. DVB-H is a technical system which was carefully tested by the DVB-H Validation Task Force in the course of 2004 (see ETSI Technical Report TR 102 401). The European Telecommunications Standards Institute ( ETSI) is an independent non-for-profit Standardization organization of the Telecommunications DVB-SH recently improved radio performances and can be seen as an evolution of DVB-H. DVB-SH, Digital Video Broadcasting - Satellite services to Handhelds, is a physical layer standard for delivering IP based media content and data to handheld terminals such

DVB-H is designed to work in the following bands:

DVB-SH now and DVB-H2 in the near future are expected to expand the supported bands.

DVB-H can coexist with DVB-T in the same multiplex. A multiplex or mux (called virtual sub-channel in the United States and Canada) is a group of Digital TV channels that are mixed together

DVB-IPDC

The set of DVB specifications for IP Datacasting (DVB-IPDC) can most simply be described as the essential components required to deploy a commercial mobile TV service based on Internet Protocol. Datacasting (data broadcasting is the Broadcasting of Data over a wide area via Radio waves It most often refers to supplemental Information DVB-IPDC is a set of systems layer specifications originally designed for use with the DVB-H physical layer, but that will ultimately be used as a higher layer for all DVB mobile TV systems, including DVB-SH, and indeed as a higher layer for any other IP capable system. DVB-SH, Digital Video Broadcasting - Satellite services to Handhelds, is a physical layer standard for delivering IP based media content and data to handheld terminals such

In short, with regard to mobile TV, these specifications define what is delivered, how it is delivered, how it is described, and how it is protected. They cover system architecture, use cases, DVB PSI/SI signalling, electronic service guide (ESG), content delivery protocols (CDP), and service purchase and protection (SPP). Almost all of these have now been published as formal ETSI standards. The full set of DVB-IPDC specifications is available from dvb-h.org.

DVB-H2

A study mission on a possible DVB-H2 system is due to commence in 2007 which could produce a finalized specification in 2008. It is not unthinkable that DVB-H2 and DVB-T2 specifications will be interrelated systems.

DVB-SH

Main article: DVB-SH

Service launches

A comprehensive list of DVB-H trials and service launches is available from dvb-h.org. DVB-SH, Digital Video Broadcasting - Satellite services to Handhelds, is a physical layer standard for delivering IP based media content and data to handheld terminals such

In Finland, the license to operate a DVB-H network was awarded to Digita in March 2006. Finland, officially the Republic of Finland ( is a Nordic country situated in the Fennoscandian region of northern Europe. In May 2006 they announced that they had signed a contract with Nokia to use its DVB-H platform for the service. Nokia Corporation (pronunciation /'nɔkiɑ/),,) is a Finnish multinational Communications Corporation, headquartered The network was supposed to be launched on the 1st December 2006, but disagreements regarding copyrights of the broadcasted material have stalled the launch. Events 800 - Charlemagne judges the accusations against Pope Leo III in the Vatican Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Among the services available will be Voice TV and Kiss digital radio. Digital radio describes Radio technologies which carry Information as a Digital signal, by means of a Digital modulation method Initially the network should cover 25% of the population with coverage area Helsinki, Oulu and Turku. Helsinki (in Finnish;) or Helsingfors (in Swedish;) is the Capital and largest city of Finland. Oulu ( (literally "Flood" ( (literally "Ule River Castle" is a city and municipality of about 130000 inhabitants in the province of Turku, in Swedish Åbo ( pronounced,) is a city and the original capital of Finland on the southwest coast of Finland at the Mobiili-TV started commercial services on May 10 2007.

In India, Indian public broadcaster Prasar Bharti (also known as DD for Doordarshan) started DVB-H trials in various metropolitan areas to test the reception quality of the broadcast coverage. India, officially the Republic of India (भारत गणराज्य inc-Latn Bhārat Gaṇarājya; see also other Indian languages) is a country Prasar Bharati ( Hindi: प्रसार भारती literally Broadcasting Corporation of India) is India 's largest public broadcaster Moreover, DD is currently broadcasting 8 channels in the New Delhi[6]. New Delhi (नई दिल्ली ਨਵੀਂ ਦਿੱਲੀ نئی دلی is the Capital city of India.

In Italy, 3 Italia and Reti Radiotelevisive Digitali launched nationwide services in May 2006, both Telecom Italia Mobile (TIM) and Mediaset in June 2006, Vodafone in December 2006. Italy (Italia officially the Italian Republic, (Repubblica Italiana is located on the Italian Peninsula in Southern Europe, and on the two largest Reti Radiotelevisive Digitali (also know as RRD is an Italian broadcasting consulting and system integration company and is the first company to implement and launch a commercial TIM (Telecom Italia Mobile is Telecom Italia 's Mobile phone brand and runs a GSM, EDGE, UMTS and HSDPA network in Mediaset is the main Italian commercial Television network with headquarters in Milan, Lombardy. Vodafone Italia (former Omnitel Pronto- Italia) is an Italian Mobile telephony operator DVB OSF was the adopted security standard in this country.

In Singapore, TVMobile uses DVB technology to broadcast live news, entertainment and music content directly to over 1'500 Singapore Bus Service buses islandwide, along with various other indoor and outdoor locations. Singapore TVMobile ( Chinese: 流动电视 is a subsidiary of MediaCorp Singapore and is the first channel in the world to pioneer the use of Digital Video

In the Philippines, SMART had launched its Mobile TV services, called MyTV. The Philippines ( Filipino: Pilipinas, officially known as the Republic of the Philippines (fil ''Republika ng Pilipinas'' RP Smart Communications is the wholly-owned Mobile phone subsidiary of the Philippine Long Distance Telephone Company (PLDT It is only available on the Nokia N92 and N77 mobile phone due to incompatibility of the current system with other security technologies such as DVB OSF, the one supported by all other handset manufacturers. The Nokia N92 mobile phone is one of the Nseries mobile phones from Nokia. However, with transition to OMA SmartCard Profile, it is yet to be available on other mobile phones models. This transition is not foreseen by end of 2008. [7] [8]

In the United States, a nationwide service will be rolled out by Modeo, a company owned by Crown Castle. The United States of America —commonly referred to as the Crown Castle International Corp ( is an American Corporation which provides Infrastructure for Broadcasting and mobile telephony The service will begin in 2006 in New York City and will roll out to the top thirty markets in the USA during 2007. Modeo owns 5 MHz of spectrum nationwide at 1600 MHz. At the NAB trade show in April 2006, a second service launch was announced by SES Americom, Aloha Partners and Reti Radiotelevisive Digitali. Reti Radiotelevisive Digitali (also know as RRD is an Italian broadcasting consulting and system integration company and is the first company to implement and launch a commercial Titled Hiwire Mobile Television, the service is set to begin trials in Las Vegas in Q4 2006. Hiwire owns two 6 MHz channels of spectrum at 700 MHz covering most of the country.

In Vietnam, VTC launched nationwide service on 21 December 2006. Vietnam (ˌviːɛtˈnɑːm Việt Nam) officially Vietnam Multimedia Corporation or Vietnam Television Corporation ( VTC) is a large multimedia corporation in Vietnam Similar issue to Smart in Philippines, the system was supporting only few Nokia handsets that limited the take-off of the service.

O2 Ireland commenced a trial in March 2007 with a single high site 1. 2 kW transmitter at Three Rock covering the greater Dublin area. Dublin (ˈdʌblɨn/ /ˈdʊblɨn or /ˈdʊbəlɪn/, bˠalʲə aːha klʲiəh or cliə(ɸ is both the largest city and capital of Ireland.

In France, Spain and South Africa nationwide service launch is planned for 2008 or 2009, However, the unavailability of the UHF frequencies keeps on delaying services launches. This article is about the country For a topic outline on this subject see List of basic France topics. Spain () or the Kingdom of Spain (Reino de España is a country located mostly in southwestern Europe on the Iberian Peninsula. The Republic of South Africa (also known by other official names) is a country located at the southern tip of the continent of Africa

In The Netherlands, Switzerland, Austria and parts of Germany DVB-H will be available with the start of UEFA Euro 2008, latest, with all of the respective regulatory decisions now in place[9][10][11]. The Netherlands ( Dutch:, ˈnedərlɑnt is the European part of the Kingdom of the Netherlands, which consists of the Netherlands the Netherlands Switzerland (English pronunciation; Schweiz Swiss German: Schwyz or Schwiiz Suisse Svizzera Svizra officially the Swiss Confederation Austria (Österreich ( officially the Republic of Austria (Republik Österreich Germany, officially the Federal Republic of Germany ( ˈbʊndəsʁepuˌbliːk ˈdɔʏtʃlant is a Country in Central Europe. The 2008 UEFA European Football Championship, commonly referred to as Euro 2008, was the 13th UEFA European Football Championship, a quadrennial football

In China, two companies have been issued licenses by the government, Shanghai Media Group and China Central Television. China ( Wade-Giles ( Mandarin) Chung¹kuo² is a cultural region, an ancient Civilization, and depending on perspective a National The Shanghai Media Group ( SMG) ( Chinese: 上海文广新闻传媒集团 Pinyin: Shànghǎi Wénguǎng Xīnwén Chuánméi Jítuán under the China Central Television or Chinese Central Television, commonly abbreviated as CCTV ( is the major television broadcaster in Mainland China Trials are currently underway, with service launch expected before the 2008 Beijing Olympics. However, in this country, S-timi seems to be the standard the most deployed in 2008.

In Malaysia, U Mobile, the fourth telecom operator and the country's newest 3G service provider announced commercial availability of a mobile broadcast TV service based on DVB-H technology before the end of 2007. For the biogeographical region see Malesia Malaysia (məˈleɪʒə or /məˈleɪziə/ is a country that consists of thirteen states and Not to be confused with ümobile, a similarly-named company in the Philippines. The service will be called Mobile LiveTV. [12]

Kenya has a DVB-H service, DStv Mobile, which was launched in Nairobi by South African company Digital Mobile TV. The Republic of Kenya is a country in East Africa. It is bordered by Ethiopia to the north Somalia to the northeast Tanzania to the south Consumers will receive a package of ten DStv channels through their mobile phones at a cost of Sh1,000 per month. The channels will include SuperSport Update, SuperSport 2, SuperSport 3, CNN International, Big Brother Africa and Africa Magic.

In Iran, DVB-H services began in Tehran in March 2008. For a topic outline on this subject see List of basic Iran topics. Tehran (or Teheran) ( Persian: تهران Tehrān) is the capital and largest City of Iran, and the administrative center of The service brings ten television and four radio channels to mobile phones. [13]

In Estonia, DVB-H service started testing phase in May 2008 with EMT. Estonia, officially the Republic of Estonia ( Eesti or Eesti Vabariik) is a Country in Northern Europe in the Baltic region Currently offering several TV-stations, the service should go into commercial use later this year.

Devices

Development tools

See also

References

  1. ^ DVB-H : Global Mobile TV
  2. ^ Rapid - Press Releases - EUROPA
  3. ^ Commission opens Single Market for Mobile TV - Europe's Information Society Newsroom
  4. ^ eCommunications: Site re-launch | Europa - Information Society
  5. ^ EU endorses Nokia-backed DVB-H mobile broadcasting standard - International Herald Tribune
  6. ^ Doordarshan launches MobileTV- Indiatimes - Infotech
  7. ^ About SMART MyTV
  8. ^ FAQs - myTV FAQs - Smart Gold
  9. ^ Broadband TV News:German DVB-H service - delays in roll-out, April 24, 2008
  10. ^ Broadcast Engineering: Austrian broadcasters strike deal to develop DVB-H network in time for UEFA championships, April 11, 2008
  11. ^  :Swiss to get access to more mobile TV channels, 18 April 2008
  12. ^ Official Press Release Announcement by U Mobile [1]
  13. ^ Press TV - Iran can watch TV on cell phones
  14. ^ Nokia Europe
  15. ^ AMUSE DVB-H tools

External links

Technical information

Other links

Digital Audio Broadcasting ( DAB) also known as Eureka 147, is a Digital radio technology for Broadcasting Radio stations used in Digital Multimedia Broadcasting ( DMB) is a Digital Radio transmission system for sending Multimedia ( Radio, TV Digital Radio Mondiale ( DRM) is a set of digital audio broadcasting technologies designed to work over the bands currently used for AM broadcasting, particularly ETSI Satellite Digital Radio (SDR (or ESDR) is an activity of the standardisation organisation ETSI. E-VSB or Enhanced VSB is an optional enhancement to the original ATSC Standards that use the 8VSB Modulation system used for transmission A Handheld projector (or pocket projector) is an emerging technology that applies the use of a Projector in a Handheld device. Integrated Services Digital Broadcasting (ISDB is a Japanese standard for Digital television (DTV and Digital radio used by the country's radio IP over DVB or IP over MPEG implies that Internet Protocol datagrams are transferred over the MPEG Transport stream, and are distributed using DVB-IPTV is an open DVB standard that enable Audio/Video services to be delivered to and through the home via Internet Protocol networking MediaFLO is Qualcomm 's new technology to broadcast data to portable devices such as cell phones and PDAs. The Mobile DTV Alliance is a marketing organization based in California that was founded in 2006 by a consortium of companies to promote Open standards for Mobile Mobile TV is television service delivered to subscribers via mobile telecommunications networks such as the Mobile phone carriers Multimedia Broadcast Multicast Service ( MBMS) is a Broadcasting service that can be offered via existing GSM and UMTS Cellular Orthogonal frequency-division multiplexing ( OFDM) — essentially identical to Coded OFDM ( COFDM) and Discrete multi-tone modulation ( is a mobile terrestrial digital audio/video and data broadcasting service in Japan and Brazil Spectral efficiency, spectrum efficiency or bandwidth efficiency refers to the amount of information that can be transmitted over a given bandwidth in a WiMAX, an approximate acronym of Worldwide Interoperability for Microwave Access, is a Telecommunications technology that provides for the wireless transmission The European Broadcasting Union ( EBU; L'Union Européenne de Radio-Télévision ("UER" and unrelated to the European Union) is a confederation
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