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Apparatus and method for transmission of digital broadcasting system having simple design
Apparatus and method for transmission of digital broadcasting system having simple design
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机译：设计简单的数字广播系统的传输装置和方法
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摘要
PURPOSE: A transmission device of a digital broadcasting system with simple design is provided to realize a time interleaving effect when an inter frame interleaving process is performed by gathering some FFT(Fast Fourier Transform) frames, thereby improving interleaving performance of small FFT modes. CONSTITUTION: An outer encoder(210) RS-encodes an inputted TS(Transport Stream). An outer interleaver(230) re-arrays data encoded in the outer encoder(210). An inner encoder(250) convolution-encodes the re-arrayed data. An inner interleaver(270) consists of a bit interleaver(271) and a symbol interleaver(273). The bit interleaver(271) re-arrays the encoded data in bit unit. The symbol interleaver(273) re-arrays the data in symbol unit. A modulator portion(300) digitally modulates the re-arrayed data. If FFT modes of the modulator portion(300) are smaller than an 'N' mode, the symbol interleaver(273) accumulates the re-arrayed data to be 'N' mode, and re-arrays the data in symbol unit.
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