Patent ID: 9148251
Filing Date: 2015-09-29
Classification: H03M,H04B,H04J,H04L,H04N

Abstract:
1. A method of transmitting broadcast signals, the method comprising: encoding signaling data by an LDPC (Low Density Parity Check) scheme; encoding data by at least one code rate; mapping the encoded data onto constellations using Non-uniform constellations; building at least one signal frame based on at least one preamble data symbol having the encoded signaling data and data symbols having the mapped data; inserting at least one pilot into each of the built at least one signal frame with a specific pattern and modulating the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplexing) method; and transmitting broadcast signals having the modulated at least one signal frame, wherein the signaling data includes channel bonding information for the broadcast signals.