Patent ID: 9686113
Date: 2017-06-20
CPC Classifications: H03M,H04B,H04J,H04L,H04N

Claim:
1. A method of transmitting broadcast signals, the method comprising: encoding signaling data by a Low Density Parity Check (LDPC) scheme; encoding data corresponding to at least one physical layer pipe (PLP); mapping the encoded data onto constellations using non-uniform constellations; building at least one signal frame including at least one preamble data symbol having the encoded signaling data and data symbols having the mapped data; modulating the at least one signal frame by an Orthogonal Frequency Division Multiplexing (OFDM) method; and transmitting broadcast signals having the modulated at least one signal frame, wherein the signaling data includes information about a number of frequencies and identification information of a channel used for channel bonding with the at least one PLP.