| 摘要 |
A transmitting system and a method of transmitting digital broadcast signal are disclosed. The method of transmitting digital broadcasting signal in a transmitter includes forming a data group including mobile data, packet formatting mobile data packets including data in the data group, wherein the mobile data packets include a specific number of mobile data packets and a scalable number of mobile data packets, the scalable number being scalable up to 38, wherein the data group includes a plurality of regions and fifth region of the data group includes the scalable number of mobile data packets, by-passing data randomizing and RS encoding on data in the mobile data packets when the scalable number is 38, interleaving data in the mobile data packets and transmitting the interleaved data during a slot.
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