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

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

• Bose, Chaudhri, Hocquenghem (BCH) encoding, by a BCH encoder, Layer 1 signaling data for signaling service data;
• padding, by a zero inserter, the BCH encoded Layer 1 signaling data with at least one zero bit;
• Low-Density Parity-Check (LDPC) encoding, by a first LDPC encoder, the zero padded Layer 1 signaling data;
• removing, by a zero remover, the at least one zero bit from the LDPC encoded Layer 1 signaling data;
• interleaving, by a first interleaver, the LDPC encoded Layer 1 signaling data from which the at least one zero bit is removed;
• Quadrature Amplitude Modulation (QAM) mapping, by a first QAM mapper, the interleaved Layer 1 signaling data into constellations;
• LDPC encoding, by a second LDPC encoder, the service data;
• interleaving, by a second interleaver, the LDPC encoded service data;
• mapping, by a second QAM mapper, the interleaved service data into constellations;
• time interleaving, by a time interleaver, the mapped service data;
• building, by a frame builder, a signal frame including the mapped Layer 1 signaling data and the time-interleaved service data;
• and
• transmitting, by a transmitter, the broadcast signals including the signal frame through Radio Frequencies (RFs), wherein the Layer 1 signaling data include channel bonding information for the broadcast signals and wherein the channel bonding information includes information for identifying a number of RFs involved in channel bonding.

An apparatus for receiving broadcast signals from a transmitter, the apparatus comprising:

• a tuner to receive the broadcast signals through Radio Frequencies (RFs), wherein the broadcast signals include a signal frame including service data and Layer 1 signaling data for signaling the service data, wherein the Layer 1 signaling data include channel bonding information for the broadcast signals, and wherein the channel bonding information includes information for identifying a number of RFs involved in channel bonding;
• a frame parser to acquire the signal frame from the received broadcast signals;
• a first Quadrature Amplitude Modulation (QAM) demapper to demap the Layer 1 signaling data in the signal frame;
• a first deinterleaver to deinterleave the demapped Layer 1 signaling data;
• a zero inserter to pad the deinterleaved Layer 1 signaling data with at least one zero bit;
• a first Low-Density Parity-Check (LDPC) decoder to LDPC decode the zero padded Layer 1 signaling data;
• a zero remover to remove the at least one zero bit from the LDPC decoded Layer 1 signaling data;
• a Bose, Chaudhri, Hocquenghem (BCH) decoder to BCH decode the LDPC decoded Layer 1 signaling data from which the at least one zero bit is removed;
• a time deinterleaver to time deinterleave the service data in the signal frame;
• a second QAM demapper to demap the time-deinterleaved service data;
• a second deinterleaver to deinterleave the demapped service data;
• and
• a second LDPC decoder to LDPC decode the deinterleaved service data.

A method of receiving broadcast signals from a transmitter, the method comprising:

• receiving, by a tuner, the broadcast signals through Radio Frequencies (RFs), wherein the broadcast signals include a signal frame including service data and Layer 1 signaling data for signaling the service data, wherein the Layer 1 signaling data include channel bonding information for the broadcast signals, and wherein the channel bonding information includes information for identifying a number of RFs involved in channel bonding;
• acquiring, by a frame parser, the signal frame from the received broadcast signals;
• demapping, by a first Quadrature Amplitude Modulation (QAM) demapper, the Layer 1 signaling data in the signal frame;
• deinterleaving, by a first deinterleaver, the demapped Layer 1 signaling data;
• padding, by a zero inserter, the deinterleaved Layer 1 signaling data with at least one zero bit;
• Low-Density Parity-Check (LDPC) decoding, by a first LDPC decoder, the zero padded Layer 1 signaling data;
• removing, by a zero remover, the at least one zero bit from the LDPC decoded Layer 1 signaling data;
• Bose, Chaudhri, Hocquenghem (BCH) decoding, by a BCH decoder, the LDPC decoded Layer 1 signaling data from which the at least one zero bit is removed;
• time deinterleaving, by a time deinterleaver, the service data in the signal frame;
• demapping, by a second QAM demapper, the time-deinterleaved service data;
• deinterleaving, by a second deinterleaver, the demapped service data;
• and
• LDPC decoding, by a second LDPC decoder, the deinterleaved service data.