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[photo] Mobile Tv Frequency And Development In China by big tree
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[photo] Mobile Tv Frequency And Development In China |
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Business,Business News,Business Opportunities
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, For mobile communication terminals for digital broadcast content (including audio, video and data content broadcast) and new mobile multimedia services. "Only two things in this world most popular: cell phones and TV, we value the future of mobile TV." Developer DAVIDBURST U.S. mobile TV on the development of mobile TV was filled with hope. At the same time, with rates declining voice, data, business operators accounts for the increasing proportion of income, to enable operators to continue to explore new data services growth, while mobile TV is considered the most potential of 3G value-added service times One carriers are also looking forward to the development of mobile TV.
U.S. market research firm ABI
to do a market forecast report, by 2010, global mobile TV subscribers increased from the current 1 million to 2.5 million, will create market value will reach 27 billion U.S. dollars. In anticipation of such a market, to enhance the value of distressed ARPU of mobile operators have entered the commercial phase of mobile TV. May 2005, Korea's SKT first phone TV (S-DMB) commercially, the current number of users around 40 million subscribers. In addition, another South Korean operators are also in December 2005 another set of commercial mobile TV system (T-DMB). NTTDoCoMo and KDDI in Japan will be in April 2006 and 2007 will be commercially available mobile TV. In Europe, many countries and regions, including Finland, France, Britain, Switzerland and Germany, being a small range of mobile TV trial, which, in Finland in November 2005 issued the first of Europe's DVB-H mobile TV operation license full commercial operation in 2006. In the United States, Qualcomm and First City company plans to launch commercially in 2006 in the U.S. mobile TV network. In China, has established a number of mobile TV trial network, the Oriental Pearl, Beijing Jolon, Guangdong TV mobile communication, the North Canton and the media companies are planned for 2006 in Beijing, Shanghai, Guangzhou and other cities to achieve a commercial mobile TV . China Mobile on June 8 with Shanghai Media Group and a subsidiary of the Oriental Pearl Co., Ltd. jointly organized the "World Cup China 2006, exclusive mobile TV begin broadcasting the ceremony," China launched the first technology-based DMB mobile digital broadcast TV services.
Heats up as mobile TV, order a nationwide mobile TV frequency planning, and early use of the frequency of the mobile TV research has been very necessary. Currently, China Communications Standards Association (CCSA), the wireless communication WG8 Frequency Working Group 11 working group meeting has been set up on the research project, two new research projects of relevant frequencies.
Mobile TV frequency and use of mobile TV technology and mobile TV operation mode are closely related. Here the mobile TV technology and business model on a simple frequency analysis of the requirements.
1, different mobile TV technology requirements on the frequency
Market expectations due to very good, so a number of countries including China, and as many as 10 kinds of organizations launched mobile TV services over the realization of technology. According to their type of bearing technology implementation techniques can be divided into three categories.
(1) terrestrial digital TV standard based on the realization of technology
Such technical general by a corresponding movement of terrestrial digital TV standard version derived. Typical techniques include the European DVB-H, present in a taxi, buses, watching TV with the DVB-T technology is the technology's predecessor. There is also Qualcomm's MediaFLO and T-DMB technology in Korea. The main work is in private radio frequency band (such as UHF / VHF). Among them, the very high frequency (VHF, also known as UHF) frequency range in China is 48.5MHz ~ 223MHz, UHF (UHF, also known as UHF) frequency range in China is 470MHz ~ 806MHz, the specific use of radio and television is the 470MHz ~ 566MHz and 606MHz ~ 798MHz frequency band, this band is basically the signal wave propagation through space.
(2) implementation of technology-based satellite network
Such technology for mobile TV using satellite broadcasting, mobile phones can receive satellite signals transmitted or received signal repeater. Typical technologies include Alcatel led the European DVB-H +; South Korea and Japan, S-DMB (MBSATS-DMB) technology. Use of satellite technology to use mobile TV service system is generally L-band frequency, or S-band, L band range around 1.6GHz, S-band is about in the 2GHz ~ 2.5GHz.
(3) implementation of technology-based mobile network
Implementation of such technology in the 3G mobile network by carrying out the appropriate technology upgrades to support the broadcast / multicast service capability. Typical technologies include 3GPP's MBMS and 3GPP2 for BCMCS. Frequency band is the corresponding frequency bands used by mobile communications network, including the existing band 2G, 3G and IMT-2000 band and extended band, may also contain IMT-Advanced spectrum. The band in the country currently include: 825MHz ~ 835MHz/870MHz ~ 880MHz, 885MHz ~ 915MHz/930MHz ~ 960MHz, 1710MHz ~ 1785MHz/1805MHz ~ 1880MHz, 1880MHz ~ 1920MHz, 1920MHz ~ 1980MHz/2110MHz ~ 2170MHz, 2010MHz ~ 2025MHz and 2300MHz ~ 2400MHz .
(4) realization of China's mobile TV technology
Our currently proposed by the two universities, two mobile TV technology, one is proposed by Tsinghua University DMBTH, the other is Shanghai Jiaotong University made ADTB-T. Both techniques are based on the realization of terrestrial digital TV standard techniques, the use of spectrum is the traditional UHF / VHF radio band.
In summary, based on technology, the use of the spectrum of different requirements vary. Table 1:
Table 1 the various mobile TV technology, the frequency required to achieve
2, mobile TV business model different requirements on the frequency
Based on the realization of mobile TV technology and the specific situation of our country, we can operate mobile TV business model is divided into three types: single carrier operation, radio and television operators to separate the two co-operating and operating mode.
(1) carrier alone operation mode The kind of business model
is widely used internationally operating mode. In the international arena, many mobile operators have long recognized its mobile TV will be the next killer application, there may be I am a professional writer from China Manufacturers, which contains a great deal of information about foot calf massager , heated foot massager, welcome to visit!
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