Broadcast signal transmitting apparatus, broadcast signal receiving apparatus, and broadcast signal transceiving method in a broadcast signal transceiving apparatus

A method of processing broadcast data in a transmitter, the method comprising:

• Forward Error Correction (FEC) encoding Physical Layer Pipe (PLP) data of a PLP;
• interleaving the FEC-encoded PLP data;
• Multi-Input Multi-Output (MIMO) encoding the interleaved PLP data;
• FEC encoding signaling data for signaling the PLP;
• mapping the FEC-encoded signaling data and the MIMO-encoded PLP data into a frame;
• and
• modulating data in the frame by an Orthogonal Frequency Division Multiplexing (OFDM) scheme,
• wherein the signaling data comprise first signaling data and second signaling data, wherein the first signaling data include size information of the second signaling data, and wherein the second signaling data include encoding information of the PLP.

A transmitter for processing broadcast data, the transmitter comprising:

• a first encoder for FEC encoding PLP data of a PLP;
• an interleaver for interleaving the FEC-encoded PLP data;
• a second encoder for MIMO encoding the interleaved PLP data;
• a third encoder for FEC encoding signaling data for signaling the PLP;
• a frame builder for mapping the FEC-encoded signaling data and the MIMO-encoded PLP data into a frame;
• and
• a modulator for modulating data in the frame by an OFDM scheme,
• wherein the signaling data comprise first signaling data and second signaling data, wherein the first signaling data include size information of the second signaling data, and wherein the second signaling data include encoding information of the PLP.