DIGITAL BROADCASTING SYSTEM AND METHOD OF PROCESSING DATA

摘要

A digital broadcasting system and a data processing method are disclosed. Herein, additional encoding is performed on mobile service data, which are then transmitted, thereby providing robustness in the processed mobile servi ce data, so that the mobile service data can respond more strongly against f ast and frequent channel changes. The transmitting system includes a first e ncoding module grouping a plurality of inputted mobile service data bytes so as to form a RS frame and performing error correction encoding in RS frame units, a second encoding module encoding the primarily encoded and outputted data at a coding rate of G/H, wherein G is smaller than H (i.e., G<H), a nd a third encoding module performing trellis encoding on the secondarily en coded and outputted data.