Patent ID: 8670494
Filing Date: 2014-03-11
Classification: H04B,H04L

Abstract:
1. A method of transmitting at least one broadcasting signal frame having PLP (Physical Layer Pipe) data and preamble data, the method comprising: encoding the PLP data and the preamble data; mapping the encoded PLP data into PLP data symbols and the encoded preamble data into preamble data symbols; selectively inserting a header in front of the PLP data symbols; building at least one data slice of which type is one of a plurality of types based on the mapped PLP data symbols and the header, wherein a first type of the at least one data slice has no header and a second type of the at least one data slice has the header; time interleaving the PLP data symbols at a data slice level; building a signal frame based on the at least one data slice and the preamble data symbols, wherein the preamble data symbols have FEC_HEADER_TYPE information indicating a type of the header, the FEC_HEADER_TYPE information appearing when the at least one data slice is of the second type; modulating the signal frame by an Orthogonal Frequency Division Multiplexing (OFDM) method; and transmitting the modulated signal frame.