Mobile TV services can be offered by the cellular communication network and the terrestrial/satellite digital broadcasting network. There are four technologies for implementing mobile TV. They are respectively based o...Mobile TV services can be offered by the cellular communication network and the terrestrial/satellite digital broadcasting network. There are four technologies for implementing mobile TV. They are respectively based on the cellular mobile network,terrestrial digital broadcasting TV network,satellite,and application layer. Digital Video Broadcasting-Handheld (DVB-H) and Terrestrial-Digital Multimedia Broadcasting (T-DMB) are two typical terrestrial digital TV broadcasting standards. The former is specified by the DVB Project for delivering multimedia services to handheld terminals through the terrestrial digital broadcasting network,and the latter was launched in Korea on the basis of the Eureka-147 Digital Audio Broadcasting (DAB) standard. The development of mobile TV currently faces the problems concerning standards,frequency resources,regulation and terminals. Mobile TV can be independently operated by the mobile operator or the broadcasting and TV operator,or jointly operated by the two. Mobile TV is an important attempt of integrating these two networks. Moreover,the coordination of supervision departments and the establishment of technical standards will directly affect the progress of digital convergence in the future.展开更多
文摘Mobile TV services can be offered by the cellular communication network and the terrestrial/satellite digital broadcasting network. There are four technologies for implementing mobile TV. They are respectively based on the cellular mobile network,terrestrial digital broadcasting TV network,satellite,and application layer. Digital Video Broadcasting-Handheld (DVB-H) and Terrestrial-Digital Multimedia Broadcasting (T-DMB) are two typical terrestrial digital TV broadcasting standards. The former is specified by the DVB Project for delivering multimedia services to handheld terminals through the terrestrial digital broadcasting network,and the latter was launched in Korea on the basis of the Eureka-147 Digital Audio Broadcasting (DAB) standard. The development of mobile TV currently faces the problems concerning standards,frequency resources,regulation and terminals. Mobile TV can be independently operated by the mobile operator or the broadcasting and TV operator,or jointly operated by the two. Mobile TV is an important attempt of integrating these two networks. Moreover,the coordination of supervision departments and the establishment of technical standards will directly affect the progress of digital convergence in the future.
