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

1. An apparatus for transmitting broadcast signals to a receiver, the apparatus comprising:

a first processor to process Layer 1 signaling data for signaling service data; and

a second processor to process the service data,

wherein the first processor comprises;

a first LDPC (low-density parity-check) encoder to encode the Layer 1 signaling data;

a first interleaver to interleave the encoded Layer 1 signaling data; and

a first QAM (Quadrature Amplitude Modulation) mapper to map the interleaved Layer 1 signaling data into constellations,

wherein the second processor comprises;

a second LDPC encoder to encode the service data;

a second interleaver to interleave the encoded service data;

a second QAM (Quadrature Amplitude Modulation) mapper to map the interleaved service data into constellations; and

a time interelaver to time interleave the mapped service data based on a skip operation,

a frame builder to build a signal frame based on the processed Layer 1 signaling data and the processed service data; and

a transmitter to transmit the broadcast signals including the signal frame through at least one channel, wherein the processed Layer 1 signaling data includes channel bonding information for the broadcast signals.

2. The apparatus of claim 1 , wherein the signal frame includes preamble symbols having the processed Layer 1 signaling data and data symbols having the processed service data.

3. The apparatus of claim 2 , wherein the preamble symbols further includes size information of the processed Layer 1 signaling data.

4. A method for transmitting broadcast signals to a receiver, the method comprising:

first processing Layer 1 signaling data for signaling service data; and

second processing the service data,

wherein the first processing comprises;

first LDPC (low-density parity-check) encoding the Layer 1 signaling data;

first interleaving the encoded Layer 1 signaling data; and

first QAM (Quadrature Amplitude Modulation) mapping the interleaved Layer 1 signaling data into constellations,

wherein the second processing comprises;

second LDPC encoding the service data;

second interleaving the encoded service data;

second QAM (Quadrature Amplitude Modulation) mapping the interleaved service data into constellations; and

time interleaving the mapped service data based on a skip operation,

building a signal frame based on the processed Layer 1 signaling data and the processed service data; and

transmitting the broadcast signals including the signal frame through at least one channel,

wherein the processed Layer 1 signaling data includes channel bonding information for the broadcast signals.

5. The method of claim 4 , wherein the signal frame includes preamble symbols having the processed Layer 1 signaling data and data symbols having the processed service data.

6. The method of claim 5 , wherein the preamble symbols further includes size information of the processed Layer 1 signaling data.