Patent ID: 9621393
Date: 2017-04-11
CPC Classifications: H04B,H04H,H04J,H04L

Claim:
1. A method for transmitting broadcast signals, the method comprising: encoding Data Pipe (DP) data carrying at least one service; bit interleaving the encoded DP data; mapping the bit interleaved DP data onto constellations; time interleaving the mapped DP data; building at least one signal frame including the time interleaved DP data; modulating data in the built at least one signal frame by an Orthogonal Frequency Division Multiplex (OFDM) scheme; inserting a preamble to the built at least one signal frame, wherein the preamble is generated by selecting a signaling sequence corresponding to signaling information and multiplying the selected signaling sequence with a Zadoff-Chu sequence; and transmitting the broadcast signals having the modulated data and the preamble.