| 摘要 |
A T(Terrestrial)-DMB(Digital Multimedia Broadcasting) system for expanding a frequency bandwidth and a method thereof are provided to maintain the compatibility with an existing terrestrial DAB/DMB system, thereby applying a high efficiency modulation manner. A coding member(41) comprises an external coding member(411). A main service multiplexing member(42) multiplexes a main service signal to an MSC(Main Service Channel). A high speed information channel producing member(43) produces SI(Service Information), FIDC(Fast Information Data Channel), MCI(Multiplex Configuration Information), and CA(Conditional Access). A transmission frame multiplexing member(44) is constructed by an audio service, a video service, and a data service. An FIC(Fast Information Channel)/MSC symbol generating member(45) generates the multiplexed FIC/MSC symbol at the transmission frame multiplexing member. A frequency interleaving member(46) interleaves the symbol generated at the FIC/MSC symbol generating member. An OFDM(Orthogonal Frequency Division Multiplexing) signal generating member(47) generates the frequency interleaved signal as an OFDM signal. |
