A satellite digital service data transmission method and system
A technology of service data and transmission method, which is applied in the field of satellite digital service data transmission, can solve the problems of limited carrier spectrum resources of satellite signals, unfavorable changeable and flexible services, etc., and achieve the effect of improving the utilization rate
Inactive Publication Date: 2017-06-06
CHINA DBSTAR
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Problems solved by technology
[0003] In the existing satellite digital distribution, satellites push data to user terminals by broadcasting. When data is pushed by broadcasting, the carrier spectrum resources used by satellite signals are limited, and one frequency point can only carry out one kind of service. Spectrum occupancy is good, but it is not conducive to the development of changeable and flexible services
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[0031] figure 1 It is a flowchart of a satellite digital service data transmission method according to an embodiment of the present invention, such as figure 1 Shown, a kind of satellite digital service data transmission method comprises:
[0032] Data processing step 100: the front-end delivery device 71 performs data processing on the source data to be pushed; the source data includes first-class data and second-class data; data processing mainly performs data slicing and data packaging, and classifies data with different functions to facilitate Push through different logical channels.
[0033] Data transmission step 200: the front-end delivery device 71 pushes the processed data to the satellite 70 through different logical channels under the same frequency point. Satellite 70 is a transfer station for data transmission. It has the characteristics of wide coverage, fast transmission speed, high content quality, and strict copyright protection. It opens up a new vision in ...
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The invention provides a satellite digital service data transmission method and system. The satellite digital service data transmission method comprises the step of data processing, wherein source data needing to be pushed are processed; data transmission; receiving of a first category of data, wherein the first category of data transmitted through a first logical channel are received by a terminal; processing of the first category of data, wherein the first category of data are analyzed by a satellite digital service releasing terminal according to a prestored first authorization document, and a second logical channel allowing a second category of data to pass through and an uri are obtained; receiving of the second category of data, wherein the second category of data transmitted through the second logical channel are received by the satellite digital service releasing terminal according to the uri. According to the satellite digital service data transmission method and system, service information which can be received by the terminal is obtained according to the first authorization document, and in this way, the terminal can only receive data relevant to the service and can not receive data relevant to other services; the problem that during satellite digital release in the prior art, the carrier spectrum resources used by satellite signals are limited, and only one service can be conducted by one frequency point is solved.
Description
technical field [0001] The invention relates to the technical field of satellite digital service data transmission, in particular to a satellite digital service data transmission method and system. Background technique [0002] Satellite digital distribution is a new publishing model, which uses satellite networks to directly deliver digital products such as audio and video, electronic books (newspapers, magazines, books), games, software, and industry information to user terminals capable of receiving and playing. service, and conduct copyright authentication and management when users use it. The distribution process of the satellite to the user terminal is as follows: the legally published digital publications are encrypted and stored in the user receiving terminal through satellite delivery, and after authentication and decryption, the user browses the application through computers, TV screens, portable terminals and other devices . Satellite digital distribution has th...
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IPC IPC(8): H04B7/185H04W72/04
Inventor 郑铸东
Owner CHINA DBSTAR