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GAP FILLER APPARATUS FOR PROVIDING A CYCLIC DELAY DIVERSITY IN A DIGITAL MULTIMEDIA BROADCASTING SYSTEM, METHOD AND BROADCASTING RELAY NETWORK USING THE SAME
GAP FILLER APPARATUS FOR PROVIDING A CYCLIC DELAY DIVERSITY IN A DIGITAL MULTIMEDIA BROADCASTING SYSTEM, METHOD AND BROADCASTING RELAY NETWORK USING THE SAME
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机译:用于在数字多媒体广播系统中提供循环延迟多样性的间隙填充器装置,方法和使用该装置的广播网络
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摘要
A gap filler apparatus providing cyclic delay diversity in a digital multimedia broadcasting (DMB) system. In the gap filler apparatus, a receiver receives an orthogonal frequency division multiplexing (OFDM) signal transmitted as a broadcasting signal. A symbol synchronization unit acquires symbol synchronization of the OFDM signal, detects a guard interval of an OFDM symbol using the symbol synchronization, determines a sample length, by which the OFDM symbol is cyclic-delayed within the guard interval, and cyclic-delays the OFDM signal by the determined sample length. An amplifier amplifies the cyclic-delayed OFDM signal. A transmitter transmits the amplified OFDM signal to a wireless network.
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