APPARATUS FOR TRANSMITTING AND RECEIVING A SIGNAL AND METHOD FOR TRANSMITTING AND RECEIVING A SIGNAL

摘要

A method for transmitting and receiving a signal and an apparatus for transmitting and receiving a signal are disclosed. The method includes receiving the signal from a first frequency band in a single frame including at least one frequency band, demodulating the received signal by an orthogonal frequency division multiplexing (OFDM) method and parsing the signal frame, acquiring a symbol stream of a service stream from the at least one frequency band included in the parsed signal frame, demapping symbols included in the symbol stream and outputting the demapped symbols to sub streams, multiplexing the output sub streams and outputting one bit stream, and deinterleaving and error-correction-decoding the output bit stream.

主权项

1. A method for transmitting a signal, the method comprising:
error-correction-coding service data according to one of error-correction coding modes; interleaving bits of the error-correction-coded service data; demultiplexing the interleaved bits, wherein an order of the demultiplexed bits is different from an order of the interleaved bits; mapping the demultiplexed bits to symbols according to one of modulation types; building a signal frame including the mapped symbols; modulating the signal frame according to an orthogonal frequency division multiplexing (OFDM) scheme; and transmitting the signal carrying the modulated signal frame.