29-04-2013, 04:16 PM
Mobile TV
[attachment=53262]
ABSTRACT
Mobile TV is the wireless transmission and reception of television content video and voice - to platforms that are either moving or capable of moving. Mobile TV allows viewers to enjoy personalized, interactive television with content specifically adapted to the mobile medium. The features of mobility and personalized consumption distinguish Mobile TV from traditional television services. The experience of viewing TV over mobile platforms differs in a variety of ways from traditional television viewing, most notably in the size of the viewing screen.
The technologies used to provide Mobile TV services are digitally based, the terms uncast and multicast are used in the same way they are used for IPTV. That is, uncasing is transmission to a single subscriber, while multicasting sends content to multiple users. These definitions also correspond to those given for similar Internet-based applications. For network operators, the challenge has become: 'How can large-scale delivery of high-quality multimedia to wireless devices be implemented profitably?' Although delivery of this type of content is technically feasible over today's existing networks such as 3G, these networks cannot support the volume and type of traffic required for a fully realized multimedia delivery service (many channels delivered on a mass market scale). Offloading multicast (one-to-many) multimedia traffic to a dedicated broadcast network is more efficient and less costly than deploying similar services over 3G networks.
INTRODUCTION
Mobile television receives considerable attention in current debates on new media and communication technologies. Enthusiastic forecasts suggest an explosion in demand with more than half a billion customers subscribing to video services on their mobile phones by 2011 (ABI Research, 2006). However, in light of delays in the planned launch of services around the world and slower uptake by smaller numbers of users than many predicted, there is increasing skepticism about the hype surrounding mobile TV, as indicated by the theme of the opening panel of the Mobile TV World Summit (2008): “The death of mobile TV” The technology is mainly at the trial and commercial launch stages. Its development will depend on technological, commercial, social, political, regulatory and other factors that are unclear; for example, the implications of the spectrum that will be released for mobile TV following the switchover from analogue to digital broadcasting in the UK, content protection technologies, licensing frameworks, and development of profitable business models. It seems pointless, therefore, to engage in speculation about how the new medium will evolve, how mobile TV might be used and how the industry might develop, but it may be useful to understand how this emergent technology is currently constructed and understood; what claims and assumptions are being made about its anticipated impact on viewers’ experience and its implications for the industry. To this end, this paper explores current thinking about mobile TV, particularly how experts involved in the production, marketing, delivery and analysis of these services regard this emergent technology. The discussion is based on a review of published material on mobile TV (in English and Chinese), including industry And press reports.
MEDIA FLO
The Media FLO system is an end-to-end mobile broadcasting technology that can deliver high-quality video to any mobile device. [5]The "FLO" part of the name is an acronym for Forward Link Only. Forward Link is another term for the downlink connection on a mobile phone, meaning that the system only sends data to the mobile devices and does not receive any data back from it.[9] Currently, the only commercially released devices that can receive the Media FLO signal are mobile phones, but the technology is capable of sending the signal to any device equipped with a Media FLO receiver. Qualcomm®, an innovator in wireless technologies, has demonstrated the broadcast of a Media FLO signal on several mobile devices that are NOT tied to any cellular network.[5] In the US, Qualcomm will broadcast its service on what used to be UHF Channel 55, which is roughly the 700MHz frequency band.
FLO technology was designed specifically for the efficient and economical distribution of the same multimedia content to millions of wireless subscribers simultaneously. It actually reduces the cost of delivering such content and enhances the user experience, allowing consumers to "surf" channels of content on the same mobile handsets they use for traditional cellular voice and data services, also works in concert with existing cellular data networks, FLO effectively addresses the issues in delivering multimedia content to a mass consumer audience. Unencumbered by legacy terrestrial or satellite delivery formats, this technology offers better performance for mobility and spectral efficiency than other mobile broadcast technologies, offering twice the channel capacity. The FLO service is designed to provide the user with a viewing experience similar to a television viewing experience by providing a familiar type of program guide user interface.
WHAT IS MOBILE TV
Different standards for mobile TV have evolved around the world, and the term refers to various technologies and forms. There are two main technological forms: streaming and broadcast. The former uses 3G networks to stream content to mobile handsets. On-net streaming or uncast is how most mobile operators currently deliver mobile TV. However, there are capacity issues related to streaming, and it is unlikely to be suitable for mass-market uptake, especially in situations where large numbers of viewers want to watch the same programmed simultaneously. Broadcast mobile TV which includes various competing technologies such as DVB-H, DMB, BT Movie, DAB-IP, Medial and ISDB-T, is expected to eventually dominate the market, primarily because it does not have the capacity constraints of streamed TV (Kaul,2006). In this paper, we define mobile TV as encompassing live simulcast TV on mobile devices, providing content similar to that broadcast on regular satellite, digital or cable channels as well as original content. This definition includes on-demand video.
HISTORY
The first pocket-sized mobile television was sold to the public by Clive Sinclair in January 1977. It was called the Micro vision or theMTV-1. It had a 2-inch CRT screen and was also the first television which could pick up signals in multiple countries. It measured 102×159×41mm and was sold for less than £100 in the UK and for around $400 in the US. The project took over ten years to develop and was funded by around £1.6 million in British Government grants. Mobile TV is one of the features provided by many 3G phones. In 2002, South Korea became the first country in the world to have a commercial mobile TV CDMA IS95-C network, and mobile TV over 3G (CDMA2000 1X EVDO) also became available that same year. In 2005, South Korea also became the first country in the world to have mobile TV when it started satellite DMB (S-DMB) and terrestrial DMB (T-DMB) services on May 1 and December 1, respectively. Today, South Korea and Japan are at the forefront of this developing sector. Mobile TV services were launched by the operator CSL in Hong Kong, March 2006, on the 3G network.BT in the United Kingdom was the among the first companies outside South Korea to launch Mobile TV in September 2006, although the service was abandoned less than a year later. The same happened to "MFD Mobiles Ferns hen Deutschland", who launched their DMB-based service June 2006 in Germany, and stopped it in April 2008. Also in June 2006, mobile operator 3 in Italy (part of Hutchison Whampoa) launched their mobile TV service, but opposed to their counterpart in Germany this was based on DVB-H. Sprint started offering the service in February 2006 and was the first US carrier to offer the service. In the US Verizon Wireless and more recently AT&T are offering the service. Mobile TV is a service which allows cell phone owners to watch television on their phones from a service provider. Television data can be obtained either through an existing cellular network or a proprietary network.
WiFi/WiMAX
This broadcast method streams live TV signals via the Internet. A Web-enabled smart phone swith data capabilities can pick up the stream from any WiFi hotspot or WiMAX coverage area.
Sling Media's Sling box uses this approach with a slight twist. Instead of broadcasting the TV signals directly from the content provider, the Sling box hardware "place shifts" the TV signals delivered to your home TV, streaming them via your home Internet connection to a mobile receiver like a Web-enabled cell phone or laptop.
TERRESTIAL
Land-based broadcasting methods send out analog or digital TV signals over the air from terrestrial base stations. A phone with a TV antenna and an analog or digital TV tuner (receiver) can pick up the signals.
There are a bunch of mobile-TV versions that utilize land broadcast, including analog broadcast TV, digital broadcast TV and 3G-network broadcasting. Standards like T-DMB (Terrestrial Digital Multimedia Broadcast), MBMS (Multimedia Broadcast and Multicast Services), Media FLO (a proprietary Qualcomm technology) and DVB-H all utilize aspects of 3G technology.
CONCLUSION
• Mobile TV Broadcasting allows user to watch their favourite TV programs on their mobile device.
• The Service works by Receiving Digital TV broadcast signal from the air in much same way as TV at home by using different technologies.
[attachment=53262]
ABSTRACT
Mobile TV is the wireless transmission and reception of television content video and voice - to platforms that are either moving or capable of moving. Mobile TV allows viewers to enjoy personalized, interactive television with content specifically adapted to the mobile medium. The features of mobility and personalized consumption distinguish Mobile TV from traditional television services. The experience of viewing TV over mobile platforms differs in a variety of ways from traditional television viewing, most notably in the size of the viewing screen.
The technologies used to provide Mobile TV services are digitally based, the terms uncast and multicast are used in the same way they are used for IPTV. That is, uncasing is transmission to a single subscriber, while multicasting sends content to multiple users. These definitions also correspond to those given for similar Internet-based applications. For network operators, the challenge has become: 'How can large-scale delivery of high-quality multimedia to wireless devices be implemented profitably?' Although delivery of this type of content is technically feasible over today's existing networks such as 3G, these networks cannot support the volume and type of traffic required for a fully realized multimedia delivery service (many channels delivered on a mass market scale). Offloading multicast (one-to-many) multimedia traffic to a dedicated broadcast network is more efficient and less costly than deploying similar services over 3G networks.
INTRODUCTION
Mobile television receives considerable attention in current debates on new media and communication technologies. Enthusiastic forecasts suggest an explosion in demand with more than half a billion customers subscribing to video services on their mobile phones by 2011 (ABI Research, 2006). However, in light of delays in the planned launch of services around the world and slower uptake by smaller numbers of users than many predicted, there is increasing skepticism about the hype surrounding mobile TV, as indicated by the theme of the opening panel of the Mobile TV World Summit (2008): “The death of mobile TV” The technology is mainly at the trial and commercial launch stages. Its development will depend on technological, commercial, social, political, regulatory and other factors that are unclear; for example, the implications of the spectrum that will be released for mobile TV following the switchover from analogue to digital broadcasting in the UK, content protection technologies, licensing frameworks, and development of profitable business models. It seems pointless, therefore, to engage in speculation about how the new medium will evolve, how mobile TV might be used and how the industry might develop, but it may be useful to understand how this emergent technology is currently constructed and understood; what claims and assumptions are being made about its anticipated impact on viewers’ experience and its implications for the industry. To this end, this paper explores current thinking about mobile TV, particularly how experts involved in the production, marketing, delivery and analysis of these services regard this emergent technology. The discussion is based on a review of published material on mobile TV (in English and Chinese), including industry And press reports.
MEDIA FLO
The Media FLO system is an end-to-end mobile broadcasting technology that can deliver high-quality video to any mobile device. [5]The "FLO" part of the name is an acronym for Forward Link Only. Forward Link is another term for the downlink connection on a mobile phone, meaning that the system only sends data to the mobile devices and does not receive any data back from it.[9] Currently, the only commercially released devices that can receive the Media FLO signal are mobile phones, but the technology is capable of sending the signal to any device equipped with a Media FLO receiver. Qualcomm®, an innovator in wireless technologies, has demonstrated the broadcast of a Media FLO signal on several mobile devices that are NOT tied to any cellular network.[5] In the US, Qualcomm will broadcast its service on what used to be UHF Channel 55, which is roughly the 700MHz frequency band.
FLO technology was designed specifically for the efficient and economical distribution of the same multimedia content to millions of wireless subscribers simultaneously. It actually reduces the cost of delivering such content and enhances the user experience, allowing consumers to "surf" channels of content on the same mobile handsets they use for traditional cellular voice and data services, also works in concert with existing cellular data networks, FLO effectively addresses the issues in delivering multimedia content to a mass consumer audience. Unencumbered by legacy terrestrial or satellite delivery formats, this technology offers better performance for mobility and spectral efficiency than other mobile broadcast technologies, offering twice the channel capacity. The FLO service is designed to provide the user with a viewing experience similar to a television viewing experience by providing a familiar type of program guide user interface.
WHAT IS MOBILE TV
Different standards for mobile TV have evolved around the world, and the term refers to various technologies and forms. There are two main technological forms: streaming and broadcast. The former uses 3G networks to stream content to mobile handsets. On-net streaming or uncast is how most mobile operators currently deliver mobile TV. However, there are capacity issues related to streaming, and it is unlikely to be suitable for mass-market uptake, especially in situations where large numbers of viewers want to watch the same programmed simultaneously. Broadcast mobile TV which includes various competing technologies such as DVB-H, DMB, BT Movie, DAB-IP, Medial and ISDB-T, is expected to eventually dominate the market, primarily because it does not have the capacity constraints of streamed TV (Kaul,2006). In this paper, we define mobile TV as encompassing live simulcast TV on mobile devices, providing content similar to that broadcast on regular satellite, digital or cable channels as well as original content. This definition includes on-demand video.
HISTORY
The first pocket-sized mobile television was sold to the public by Clive Sinclair in January 1977. It was called the Micro vision or theMTV-1. It had a 2-inch CRT screen and was also the first television which could pick up signals in multiple countries. It measured 102×159×41mm and was sold for less than £100 in the UK and for around $400 in the US. The project took over ten years to develop and was funded by around £1.6 million in British Government grants. Mobile TV is one of the features provided by many 3G phones. In 2002, South Korea became the first country in the world to have a commercial mobile TV CDMA IS95-C network, and mobile TV over 3G (CDMA2000 1X EVDO) also became available that same year. In 2005, South Korea also became the first country in the world to have mobile TV when it started satellite DMB (S-DMB) and terrestrial DMB (T-DMB) services on May 1 and December 1, respectively. Today, South Korea and Japan are at the forefront of this developing sector. Mobile TV services were launched by the operator CSL in Hong Kong, March 2006, on the 3G network.BT in the United Kingdom was the among the first companies outside South Korea to launch Mobile TV in September 2006, although the service was abandoned less than a year later. The same happened to "MFD Mobiles Ferns hen Deutschland", who launched their DMB-based service June 2006 in Germany, and stopped it in April 2008. Also in June 2006, mobile operator 3 in Italy (part of Hutchison Whampoa) launched their mobile TV service, but opposed to their counterpart in Germany this was based on DVB-H. Sprint started offering the service in February 2006 and was the first US carrier to offer the service. In the US Verizon Wireless and more recently AT&T are offering the service. Mobile TV is a service which allows cell phone owners to watch television on their phones from a service provider. Television data can be obtained either through an existing cellular network or a proprietary network.
WiFi/WiMAX
This broadcast method streams live TV signals via the Internet. A Web-enabled smart phone swith data capabilities can pick up the stream from any WiFi hotspot or WiMAX coverage area.
Sling Media's Sling box uses this approach with a slight twist. Instead of broadcasting the TV signals directly from the content provider, the Sling box hardware "place shifts" the TV signals delivered to your home TV, streaming them via your home Internet connection to a mobile receiver like a Web-enabled cell phone or laptop.
TERRESTIAL
Land-based broadcasting methods send out analog or digital TV signals over the air from terrestrial base stations. A phone with a TV antenna and an analog or digital TV tuner (receiver) can pick up the signals.
There are a bunch of mobile-TV versions that utilize land broadcast, including analog broadcast TV, digital broadcast TV and 3G-network broadcasting. Standards like T-DMB (Terrestrial Digital Multimedia Broadcast), MBMS (Multimedia Broadcast and Multicast Services), Media FLO (a proprietary Qualcomm technology) and DVB-H all utilize aspects of 3G technology.
CONCLUSION
• Mobile TV Broadcasting allows user to watch their favourite TV programs on their mobile device.
• The Service works by Receiving Digital TV broadcast signal from the air in much same way as TV at home by using different technologies.