BROADCAST SIGNAL TRANSMITTER AND RECEIVER, AND BROADCAST SIGNAL TRANSMITTING AND RECEIVING METHOD

摘要

According to one embodiment of the present invention, a broadcast signal transmitter comprises: an FEC encoder which performs FEC encoding on data; a demultiplexer which reorders the bit order of the FEC-encoded data; a divider which reorders the reordered bits in accordance with the QAM types of a first input signal and of a second input signal so as to output the first input signal and the second input signal; a first symbol mapper and a second symbol mapper which perform symbol-mapping on the first input signal and on the second input signal so as to generate M-QAM symbol signals, respectively; a first frame builder and a second frame builder which build the frame structures of the first input signal and of the second input signal, respectively; a MIMO encoder which performs MIMO processing on the first input signal and on the second input signal to output an M*M-QAM-type first transmission signal and a M*M-QAM-type second transmission signal; and a first OFDM generator and a second OFDM generator which perform OFDM modulation on the first transmission signal and on the second transmission signal, respectively.