Patent ID: 8077744

Claim:
A method of transmitting a broadcast signal, the method comprising: encoding mobile data for forward error correction (FEC) according to a code mode; encoding signaling data for the mobile data, the encoding comprising: RS encoding first signaling data of the signaling data, wherein the first signaling data includes information for a current sub frame number within a transmission frame and information for a current slot number within a sub-frame in the transmission frame, RS encoding second signaling data of the signaling data, wherein the second signaling data provides cross layer information between a physical layer and a upper layer for rapid service acquisition, interleaving the RS-encoded second signaling data; combining the first signaling data and the interleaved second signaling data, and performing PCCC (parallel concatenated convolutional code) encoding on the combined signaling data; forming at least one data group including the encoded mobile data, the encoded signaling data, and known data sequences; and transmitting the transmission frame including the formed at least one data group.