Patent ID: 9722840
Date: 2017-08-01
CPC Classifications: H03M,H04L

Claim:
1. A broadcast signal receiver, comprising: an Orthogonal Frequency Division Multiplexing (OFDM) demodulator configured to OFDM demodulate a received broadcast signal; a pilot detector configured to detect pilots included in the broadcast signal; a frame parser configured to parse a signal frame of the broadcast signal, the signal frame comprising a bootstrap, a preamble, and a data part; a demapper and decoder configured to convert Physical Layer Pipe (PLP) data of the signal frame into a bit domain and to perform Forward Error Correction (FEC) decoding on the converted PLP data; and an output processer configured to output a data stream, wherein the bootstrap comprises preamble structure information about the preamble, the preamble comprises preamble symbols, and the preamble symbols carry layer wherein a first preamble symbol of the preamble has a minimum number of carriers (NoC), and the first preamble symbol comprises NoC-related information indicating an NoC for remaining preamble symbols.