| 摘要 |
<p>The present invention relates to apparatus and method of transmitting and receiving broadcasting signals. One aspect of the present invention relates to 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 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 data slice has no header and a second type of the data slice has a header;
building a signal frame based on the data slice and the preamble data symbols;
modulating the signal frame by an Orthogonal Frequency Division Multiplexing (OFDM) method; and
transmitting the modulated signal frame,
wherein the preamble data symbols include layer 1 (L1) signalling information for signalling the data slice,
and wherein the L1 signalling information comprises ModCod (Modulation and Coding) parameter for the first type of the data slice.</p> |
