Digital broadcast transmission and reception apparatus and methods for processing stream thereof

The method for configuring a digital broadcasting transport stream packets for reception performance enhancement and digital broadcasting transmitter and a method of processing signals is proposed. According to the invention, known for the synchronization (Known) adding a reference signal: configuring the transport stream packet containing the (SRS Supplementary Reference Sequence) a stuffing area (stuffing region) for data insertion, and random a packet including the stuffing region granulation to, and inserts the additional reference signal (SRS) data in the stuffing region of the randomized packet, adding a parity for error correction to the additional reference signal (SRS) is inserted into the data packet. Further, interleaving for the parity-added packet, the trellis to perform encoding, trellis-encoded segment sync to the packet signal (Segment sync) and a field synchronizing signal (Field sync) for the interleaved packet modulation and, after the packet, insert a synchronization signal inserting VSB and then transmits the RF conversion. Adding a reference signal (SRS), the stuffing region, ATSC VSB, compatibility parity