APPARATUS FOR TRANSMITTING BROADCAST SIGNALS, APPARATUS FOR RECEIVING BROADCAST SIGNALS, METHOD FOR TRANSMITTING BROADCAST SIGNALS AND METHOD FOR RECEIVING BROADCAST SIGNALS

摘要

A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals, the apparatus comprises an encoder to encode service data, a framing block to map the encoded service data into data symbols to build at least one signal frame, a frequency interleaver to frequency interleaving data in the at least one signal frame by using an interleaving sequence, a modulator to perform a modulation on the frequency interleaved data by the OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter to transmit the broadcast signals having the modulated data, wherein a different interleaving sequence is used for two consecutive data symbols corresponding to an OFDM symbol pair or a data symbol corresponding to an OFDM symbol according to an FFT size of the modulation.

主权项

1. A method for transmitting broadcast signals, the method comprising:
encoding service data; mapping the encoded service data into data symbols to build at least one signal frame; frequency interleaving data in the at least one signal frame by using an interleaving sequence; modulating the frequency interleaved data by the OFDM (Orthogonal Frequency Division Multiplex) scheme; and transmitting the broadcast signals having the modulated data, wherein a different interleaving sequence is used for two consecutive data symbols corresponding to an OFDM symbol pair or a data symbol corresponding to an OFDM symbol according to an FFT size of the modulating.