Abstract:
An apparatus for transmitting data in a communication system includes: a receiving unit configured to receive connection information of network systems to which a terminal connects; a packet generation unit configured to check the connection information, generate a data packet having a first structure when the terminal connects to a first system, and generate a data packet having a second structure when the terminal connects to a second system; and a transmitting unit configured to transmit the data packets to a receiver. The data packet having the first structure includes successive sequence frames, and the data packet having the second structure includes a main frame including the sequence frames, a redundancy frame obtained by delaying the sequence of the sequence frames, and an exclusive OR (XOR) frame of the main frame.