Apparatus for transmitting and receiving a signal and method of transmitting and receiving a signal

A method of transmitting broadcast data in a broadcast transmitting system, the method comprising:

• Cyclic Redundancy Check (CRC) encoding Physical Layer Pipe (PLP) data of a PLP;
• inner encoding the CRC-encoded PLP data;
• interleaving the inner encoded PLP data;
• mapping the interleaved PLP data onto constellations using a non-uniform constellation M-Quadrature Amplitude Modulation (QAM) scheme, wherein M is 64, 256, 1024, or 4096;
• outer encoding Layer 1 (L1) signaling information for signaling the PLP;
• padding the outer encoded L1 signaling information with at least one zero bit;
• inner encoding the outer encoded L1 signaling information and the at least one zero bit, resulting in inner encoded L1 signaling information;
• removing the at least one zero bit from the inner encoded L1 signaling information;
• interleaving the inner encoded L1 signaling information from which the at least one zero bit is removed;
• mapping the interleaved L1 signaling information onto constellations using a non-uniform constellation N-QAM scheme, wherein N is an integer greater than 1;
• building a signal frame including the mapped PLP data and the mapped L1 signaling information;
• modulating the signal frame by an Orthogonal Frequency Division Multiplexing (OFDM) method;
• and
• transmitting a broadcasting signal including data of the modulated signal frame.

A broadcast transmitting system for transmitting broadcast data, the broadcast transmitting system comprising:

• a first encoder to Cyclic Redundancy Check (CRC) encode Physical Layer Pipe (PLP) data of a PLP;
• a second encoder to inner encode the CRC-encoded PLP data;
• a first interleaver to interleave the inner encoded PLP data;
• a first mapper to map the interleaved PLP data onto constellations using a non-uniform constellation M-QAM scheme, wherein M is 64, 256, 1024, or 4096;
• a third encoder to outer encode L1 signaling information for signaling the PLP;
• a zero padding circuit to pad the outer encoded L1 signaling information with at least one zero bit;
• a fourth encoder to inner encode the outer encoded L1 signaling information and the at least one zero bit, resulting in inner encoded L1 signaling information;
• a zero removal circuit to remove the at least one zero bit from the inner encoded L1 signaling information;
• a second interleaver to interleave the inner encoded L1 signaling information from which the at least one zero bit is removed;
• a second mapper to map the interleaved L1 signaling information onto constellations using a non-uniform constellation N-QAM scheme, wherein N is an integer greater than 1;
• a frame builder to build a signal frame including the mapped PLP data and the mapped L1 signaling information;
• a modulator to modulate the signal frame by an Orthogonal Frequency Division Multiplexing (OFDM) method;
• and
• a transmitter to transmit a broadcasting signal including data of the modulated signal frame.

A method of receiving broadcast data in a broadcast receiving system, the method comprising:

• receiving a broadcast signal including a signal frame that contains Physical Layer Pipe (PLP) data of a PLP and L1 signaling information for signaling the PLP;
• demodulating the received broadcast signal by an Orthogonal Frequency Division Multiplexing (OFDM) method;
• parsing the signal frame in the demodulated broadcast signal;
• demapping the PLP data in the signal frame using a non-uniform constellation M-QAM scheme, wherein M is 64, 256, 1024, or 4096;
• deinterleaving the demapped PLP data;
• inner decoding the deinterleaved PLP data;
• Cyclic Redundancy Check (CRC) decoding the inner decoded PLP data;
• demapping the L1 signaling information in the signal frame using a non-uniform constellation N-QAM scheme, wherein N is an integer greater than 1;
• deinterleaving the demapped L1 signaling information;
• padding the deinterleaved L1 signaling information with at least one zero bit;
• inner decoding the deinterleaved L1 signaling information and the at least one zero bit, resulting inner decoded L1 signaling information;
• removing the at least one zero bit from the inner decoded L1 signaling information;
• and
• outer decoding the inner decoded L1 signaling information from which the at least one zero bit is removed.

A broadcast receiving system for receiving broadcast data, the broadcast receiving system comprising:

• a tuner to receive a broadcast signal including a signal frame that contains Physical Layer Pipe (PLP) data of a PLP and L1 signaling information for signaling the PLP;
• a demodulator to demodulate the received broadcast signal by an Orthogonal Frequency Division Multiplexing (OFDM) method;
• a frame parser to parse the signal frame in the demodulated broadcast signal;
• a first demapper to demap the PLP data in the signal frame using a non-uniform constellation M-QAM scheme, wherein M is 64, 256, 1024, or 4096;
• a first deinterleaver to deinterleave the demapped PLP data;
• a first decoder to inner decode the deinterleaved PLP data;
• a second decoder to CRC decode the inner decoded PLP data;
• a second demapper to demap the L1 signaling information in the signal frame using a non-uniform constellation N-QAM scheme, wherein N is an integer greater than 1;
• a second deinterleaver to deinterleave the demapped L1 signaling information;
• a zero padding circuit to pad the deinterleaved L1 signaling information with at least one zero bit;
• a third decoder to inner decode the deinterleaved L1 signaling information and the at least one zero bit, resulting inner decoded L1 signaling information;
• a zero removal circuit to remove the at least one zero bit from the inner decoded L1 signaling information;
• and
• a fourth decoder to outer decode the inner decoded L1 signaling information from which the at least one zero bit is removed.