System for implementing mobile terminal TV service and program transmitting watching method

Abstract

The invention relates to a system for realizing the television service via mobile terminal, which includes: a network service center of digital television broadcasting, a mobile television broadcasting-program distribution sell (MTB-PDS), a mobile video broadcasting-terrestrial transmission sell (MTB-TTX), a mobile video broadcasting-mobile station (MTB-MS). The transmission method shows as follow: the network serving center reuses different digital-programs as transport-streams to transmit to MTB-PDS, MTB-PDS converts the transport-streams into different programs and allocates them to different broadcast-streams to transmit to MTB-TTX, and MTB-TTX broadcasts the received different broadcast-streams through different sub-channels of empty broadcasting channels. The receiving method shows as follow: MTB-MS remains on the frequency point of the broadcasting carrier frequency of television service via mobile terminals, and the program data of the sub-channels of the empty broadcast channel can be received.

Description

technical field [0001] The invention relates to the technical field of 3G, in particular to a system for realizing mobile terminal TV services and a method for sending and watching programs. Background technique [0002] Mobile terminal TV service refers to the service of watching TV programs through mobile terminals. Due to the mature technology of mobile company's 3G mobile network transmission technology in wireless coverage and transmission, the mobile terminal TV service launched by my country's mobile operators can rely on the existing mobile network. For example, China Mobile's mobile terminal TV service can be based on its GPRS network, while China Unicom can rely on its CDMA1x EV-DO BCMCS network. The corresponding TV programs are then organized and provided by the mobile communication company or by the corresponding service provider (SP). This networking mode is introduced below. [0003] figure 1 It is a network diagram for realizing mobile terminal TV service...

AI Technical Summary

Problems solved by technology

[0023] The BCMCS base station can provide reverse DO (Data Only) access, although this provides convenience for mobile terminals to access the data network, but it will affect the coverage of the base station and reduce the coverage radius of each base station

[0024] At the business level, since the architecture implemented by the wireless BCMCS technology is IP point-to-multipoint transmission, the UDP / IP protocol cannot be omitted, so the UDP / IP layer occupies a certain air interface transmission bandwidth and increases the protocol overhead

[0025] The base station of the wireless broadcasting network has a reverse channel, and the so-called near-far effect must be considered, which leads to complicated power control

[0026] On the other hand, the traditional TV service is realized by the broadcast TV network system provided by the broadcast TV company, and the above-mentioned method is mainly to realize the mobile terminal TV service on the basis of the mobile network, and cannot make full use of the existing broadcast TV company. The broadcast digital TV network system provided, so the cost of its implementation is relatively high

[0027] For broadcasting and television companies, investors who already have a well-developed broadcasting digital TV network, using the above method, they focus on using the mobile network, but fail to make full use of their existing broadcasting digital TV network system and fail to protect their existing network. invest

It is necessary to re-build network-side equipment, which will increase its investment and affect the promotion of mobile terminal TV services

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