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

摘要

The present invention provides a method of transmitting broadcast signals. The method includes, formatting, by an input formatting block, input streams into plural PLPs (Physical Layer Pipes); encoding, by an encoder, data in the plural PLPs; time interleaving, by a time interleaver, the encoded data in the plural PLPs, wherein the time interleaving includes: cell interleaving, by a cell interleaver, the encoded data by permuting cells in a FEC (Forward Error Correction) block in the plural PLPs; frame mapping, by a framer, the time interleaved data onto at least one signal frame; and waveform modulating, by a waveform block, the mapped data in the at least one signal frame and transmitting, by the waveform block, broadcast signals having the modulated data.

主权项

1. A method of transmitting broadcast signals, the method including:
encoding service data in plural PLPs (Physical Layer Pipes); cell interleaving the encoded service data, wherein the cell interleaving further includes: linear writing cells in each FEC block of the encoded service data; and random reading the written cells based on a shift value; interleaving each TI (Time Interleaving) block of the cell interleaved service data; mapping the interleaved service data into at least one signal frame; modulating data in the at least one signal frame; and transmitting the broadcast signals having the modulated data.