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 time interleaver to interleave the encoded service data, a frame builder to build at least one signal frame including the time interleaved service data, wherein the at least one signal frame includes a plurality of OFDM symbols, a modulator to modulate data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme, and a transmitter to transmit the broadcast signals having the modulated data.

主权项

1. A method for transmitting broadcast signals, the method comprising:
encoding service data; time interleaving the encoded service data in a first mode or a second mode; building at least one signal frame including the time interleaved service data; modulating data in the at least one built signal frame by an Orthogonal Frequency Division Multiplex (OFDM) scheme; and transmitting the broadcast signals having the modulated data, wherein the broadcast signals further include:
first signaling information indicating a position of an interleaving selector at the start of the signal frame of the first mode, orsecond signaling information indicating whether an inter-frame interleaving scheme is used in the time interleaving of the second mode.