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

摘要

An apparatus for transmitting a broadcast signal according to one embodiment of the present invention comprises: an encoder for encoding data pipe (DP) data corresponding to a DP which transmits at least one broadcast service or broadcast service component; a mapper for mapping the encoded DP data on a constellation; a time interleaver for time-interleaving the mapped DP data; a frame builder for generating at least one signal frame builder for generating at least one signal frame including the time-interleaved DP data; a pilot inserting unit for inserting signal frame, according to at least one pilot pattern; an OFDM modulator for OFDM-modulating the at least one generated signal frame using OFDM parameters; and a transmitter for transmitting at least one broadcast signal including the at least one modulated signal frame.

主权项

1. A method for transmitting a broadcast signal, comprising:
encoding Data Pipe (DP) data corresponding to a Data Pipe (DP) carrying at least one broadcast service or at least one service component, wherein the at least one broadcast service corresponds to at least one of a broadcast service for a fixed receiver or a broadcast service for a mobile receiver; mapping the encoded DP data to a constellation; time-interleaving the mapped DP data; generating at least one signal frame including the time-interleaved DP data; inserting at least one pilot into the generated at least one signal frame according to at least one pilot pattern, wherein the at least one pilot pattern is different according to the broadcast service for the fixed receiver or the broadcast service for the mobile receiver; OFDM(orthogonal frequency division multiplexing)-modulating the generated at least one signal frame using OFDM parameters, wherein the OFDM parameters are determined according to a Fast Fourier Transform (FFT) size; and transmitting at least one broadcast signal including the modulated at least one signal frame.