Patent ID: 9294247
Filing Date: 2016-03-22
CPC Classification: H03M,H04L,H04N

Claim Text:
1. A method for transmitting broadcast signals, the method comprising: encoding service data corresponding to each of data transmission units, wherein each of the data transmission units carries at least one service component; encoding physical signaling data with a shortening scheme and a puncturing scheme, wherein the physical signaling data is encoded based on a code rate; mapping the encoded service data onto constellations; building at least one signal frame including preamble data and the mapped service data; modulating the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme; and transmitting the broadcast signals carrying the at least one modulated signal frame, wherein the preamble data of a current signal frame includes the encoded physical signaling data for the mapped service data of the current signal frame, and wherein the preamble data of the current signal frame further includes a part of parity data of the encoded physical signaling data for the mapped service data of a next signal frame followed by the current signal frame.