Synchronous TDMA Direct Satellite Broadcasting Network

A new direct satellite broadcasting network is proposed to solve a fundamental problem with existing DSB network. The conventional DSB networks are of a very centralized structure; the broadcasting station is limited to a central station which transmits all broadcast channels signals to the satellite. Direct broadcast from multiple sites in remote areas is impossible. This tight centralized structure of the DSB networks tends to bring about impoverishment of the broadcast contents and premature saturation of the market In the proposed DSB system multiple stations located anywhere within the satellite coverage area can directly transmit signals to the satellite transponder shared in a synchronous TDMA mode and the combined signal from the satellite can be received with existing DSB receivers. Normally up to 10 stations can share a transponder for standard TV broadcasting. The transmit stations are small with 1.2-2.4 m antennae. Direct live reporting from the event sites with SNG vehicles will be also possible. Thus the proposed system provides a truly direct satellite broadcasting for the transmit side as well as the receive side. The proposed system can realize a universal nationwide broadcasting network for the general public, integrate remote areas with national networks and open a new information age in the 21^st century.