Patent ID: 8769369

Claim:
A method for transmitting a Forward Error Correction (FEC) packet block including a plurality of FEC packets in a multimedia system, the method comprising: generating a plurality of first FEC packet blocks by performing a first FEC encoding on a plurality of source symbols, each of the plurality of first FEC packet blocks including at least one source packet and at least one repair packet for repair of each of the at least one source packet; generating a second FEC packet block by performing a second FEC encoding on the plurality of first FEC packet blocks, the second FEC packet block including at least one repair packet for the plurality of first FEC packet blocks; and transmitting the second FEC packet block that includes, in header information of each of the at least one source packet and the at least one repair packet, at least one of first block boundary information for indicating a block boundary for the plurality of first FEC packet blocks and second block boundary information for indicating a block boundary for the second FEC packet block, and sequence number information for a related packet.