A METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING BROADCAST SIGANLS

摘要

Embodiments of the present invention relate to methods and apparatuses for transmitting or receiving broadcast signals, which can transmit or receive broadcast signals for the purpose of next-generation broadcasting service. A method for transmitting broadcast signals according to an embodiment of the present invention comprises the steps of: encoding data pipe (DP) data which carries at least one or more services; mapping the encoded DP data to constellations; time-interleaving the mapped DP data; generating a signal frame including the time-interleaved DP data; modulating data in the generated signal frame by using an orthogonal frequency division multiplexing (OFDM) scheme; and transmitting broadcast signals including the modulated data. Each signal frame may include signal frames multiplexed in a time domain for different services, the signal frame may further include a preamble in a start portion of the signal frame, and the preamble may include signaling information for each signal frame.