Patent ID: 7801181

Claim:
A method of transmitting a broadcast signal in a transmitter, the method comprising: pre-processing mobile data, wherein pre-processing mobile data comprises: encoding a 2-dimensional Reed-Solomon (RS) frame through which an ensemble including a service of the mobile data is RS-cyclic redundancy check (RS-CRC) encoded, the encoded RS frame being separated to a plurality of portions, forming data groups of the mobile data, wherein each data group includes signaling information, regularly spaced known data sequences and one of the plurality of portions, wherein the signaling information includes fast information channel (FIC) data having cross layer information between a physical layer and an upper layer and wherein the signaling information further includes transmission parameter channel (TPC) data indicating a version of the FIC data, and forming a mobile data packet including the pre-processed mobile data; multiplexing the mobile data packet and a main data packet including main data that is legacy advanced television systems committee (ATSC) broadcast data; performing systematic RS encoding on main data in the multiplexed data packets and non-systematic RS encoding on mobile data in the multiplexed data packets; and transmitting a transmission frame including the RS encoded main data and the RS encoded mobile data, wherein a parade of the formed data groups is transmitted during slots in the transmission frame, the slots being basic time periods for multiplexing of the mobile data and the main data, and wherein the TPC data includes an identifier of the parade.