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

1. 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 (L 1 ) signaling information for signaling the PLP;

padding the outer encoded L 1 signaling information with at least one zero bit;

inner encoding the outer encoded L 1 signaling information and the at least one zero bit, resulting in inner encoded L 1 signaling information;

removing the at least one zero bit from the inner encoded L 1 signaling information;

interleaving the inner encoded L 1 signaling information from which the at least one zero bit is removed;

mapping the interleaved L 1 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 L 1 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.

2. The method of claim 1 , wherein the L 1 signaling information includes modulation information that identifies the non-uniform constellation M-QAM.

3. The method of claim 1 , further comprising puncturing at least one parity bit generated by inner encoding bits of the outer encoded L 1 signaling information and the at least one zero bit.

4. The method of claim 1 , wherein the L 1 signaling information includes PLP identification (ID) information that identifies the PLP, PLP start information that identifies a start position of the PLP, and PLP TYPE information that indicates a type of the PLP.

5. 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 L 1 signaling information for signaling the PLP;

a zero padding circuit to pad the outer encoded L 1 signaling information with at least one zero bit;

a fourth encoder to inner encode the outer encoded L 1 signaling information and the at least one zero bit, resulting in inner encoded L 1 signaling information;

a zero removal circuit to remove the at least one zero bit from the inner encoded L 1 signaling information;

a second interleaver to interleave the inner encoded L 1 signaling information from which the at least one zero bit is removed;

a second mapper to map the interleaved L 1 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 L 1 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.

6. The broadcast transmitting system of claim 5 , wherein the L 1 signaling information includes modulation information that identifies the non-uniform constellation M-QAM.

7. The broadcast transmitting system of claim 5 , further comprising a parity puncturing circuit to puncture at least one parity bit generated by inner encoding bits of the outer encoded L 1 signaling information and the at least one zero bit.

8. The broadcast transmitting system of claim 5 , wherein the L 1 signaling information includes PLP ID information that identifies the PLP, PLP start information that identifies a start position of the PLP, and PLP TYPE information that indicates a type of the PLP.

9. 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 L 1 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 L 1 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 L 1 signaling information;

padding the deinterleaved L 1 signaling information with at least one zero bit;

inner decoding the deinterleaved L 1 signaling information and the at least one zero bit, resulting inner decoded L 1 signaling information;

removing the at least one zero bit from the inner decoded L 1 signaling information; and

outer decoding the inner decoded L 1 signaling information from which the at least one zero bit is removed.

10. The method of claim 9 , wherein the L 1 signaling information includes modulation information that identifies the non-uniform constellation M-QAM.

11. The method of claim 9 , further comprising depuncturing parity bits in the deinterleaved L 1 signaling information.

12. The method of claim 9 , wherein the L 1 signaling information includes PLP ID information that identifies the PLP, PLP start information that identifies a start position of the PLP, and PLP TYPE information that indicates a type of the PLP.

13. 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 L 1 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 damapper to demap the L 1 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 L 1 signaling information;

a zero padding circuit to pad the deinterleaved L 1 signaling information with at least one zero bit;

a third decoder to inner decode the deinterleaved L 1 signaling information and the at least one zero bit, resulting inner decoded L 1 signaling information;

a zero removal circuit to remove the at least one zero bit from the inner decoded L 1 signaling information; and

a fourth decoder to outer decode the inner decoded L 1 signaling information from which the at least one zero bit is removed.

14. The broadcast receiving system of claim 13 , wherein the L 1 signaling information includes modulation information that identifies the non-uniform constellation M-QAM.

15. The broadcast receiving system of claim 13 , comprising a parity depuncturing circuit to depuncture parity bits in the deinterleaved L 1 signaling information.

16. The broadcast receiving system of claim 13 , wherein the L 1 signaling information includes PLP ID information that identifies the PLP, PLP start information that identifies a start position of the PLP, and PLP TYPE information that indicates a type of the PLP.