A method for receiving broadcast signals in a digital broadcast system, the method comprising: receiving the broadcast signals and demodulating the received broadcast signals by an Orthogonal Frequency Division Multiplexing, OFDM, method; frequency de-interleaving the demodulated broadcast signals by pair-wise frequency deinterleaving, which pairs up two consecutive cells in the demodulated broadcast signals as a deinterleaving unit and performs frequency deinterleaving; obtaining at least two signal frames from the frequency de-interleaved broadcast signals by cell-demapping cells in the frequency de-interleaved broadcast signals; and Bit Interleaved Coding and Modulation, BICM, decoding first Physical Layer Pipe, PLP, data of a first PLP, second PLP data of a second PLP and Layer 1, L1, signaling information in each of the at least two signal frames, wherein the first and second PLPs carry one or more services, wherein the L1 signaling information includes identification information for identifying each of the first and second PLPs, wherein the BICM decoding comprises: first BICM decoding comprising processing for Multi-Input Single-Output, MISO, decoding, constellation demapping, bit-deinterleaving and Forward Error Correction, FEC, decoding the first PLP data; second BICM decoding comprising processing for Multi-Input Multiple-Output, MIMO, decoding, constellation demapping, bit-deinterleaving and FEC decoding the second PLP data; and third BICM decoding comprising processing for MISO decoding, constellation demapping and FEC decoding the L1 signaling information. receiving the broadcast signals and demodulating the received broadcast signals by an Orthogonal Frequency Division Multiplexing, OFDM, method; frequency de-interleaving the demodulated broadcast signals by pair-wise frequency deinterleaving, which pairs up two consecutive cells in the demodulated broadcast signals as a deinterleaving unit and performs frequency deinterleaving; obtaining at least two signal frames from the frequency de-interleaved broadcast signals by cell-demapping cells in the frequency de-interleaved broadcast signals; and Bit Interleaved Coding and Modulation, BICM, decoding first Physical Layer Pipe, PLP, data of a first PLP, second PLP data of a second PLP and Layer 1, L1, signaling information in each of the at least two signal frames, wherein the first and second PLPs carry one or more services, wherein the L1 signaling information includes identification information for identifying each of the first and second PLPs, wherein the BICM decoding comprises: first BICM decoding comprising processing for Multi-Input Single-Output, MISO, decoding, constellation demapping, bit-deinterleaving and Forward Error Correction, FEC, decoding the first PLP data; second BICM decoding comprising processing for Multi-Input Multiple-Output, MIMO, decoding, constellation demapping, bit-deinterleaving and FEC decoding the second PLP data; and third BICM decoding comprising processing for MISO decoding, constellation demapping and FEC decoding the L1 signaling information. first BICM decoding comprising processing for Multi-Input Single-Output, MISO, decoding, constellation demapping, bit-deinterleaving and Forward Error Correction, FEC, decoding the first PLP data; second BICM decoding comprising processing for Multi-Input Multiple-Output, MIMO, decoding, constellation demapping, bit-deinterleaving and FEC decoding the second PLP data; and third BICM decoding comprising processing for MISO decoding, constellation demapping and FEC decoding the L1 signaling information.