APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING FORWARD ERROR CORRECTION PACKET

摘要

A method and an apparatus for transmitting and receiving a packet in a broadcasting and communication system are provided. The method includes splitting a source packet block including source packets into a plurality of source packet subblocks, converting the source packet subblocks to source symbol subblocks, respectively, generating a plurality of first repair symbol blocks by encoding the source packet subblocks using a first error correction code, configuring an error correction source packet by adding a source error correction payload IDentifier (ID) to source symbols included in the source symbol subblocks and configuring an error correction repair packet by adding a repair error correction payload ID to repair symbols included in the first repair symbol subblocks, and transmitting the error correction source packet and the error correction repair packet.

主权项

1. A method for transmitting a packet in a multimedia service system, the method comprising:
splitting a source packet block including source packets into a plurality of source packet subblocks; converting the source packet subblocks to source symbol subblocks, respectively; generating a plurality of first repair symbol blocks by encoding the source packet subblocks using a first error correction code; configuring an error correction source packet by adding a source error correction payload IDentifier (ID) to source symbols included in the source symbol subblocks and configuring an error correction repair packet by adding a repair error correction payload ID to repair symbols included in the first repair symbol subblocks; and transmitting the error correction source packet and the error correction repair packet, wherein the source error correction payload ID includes a source symbol ID indicating a sequence number identifying the source symbols within the error correction source packet, and wherein the repair error correction payload ID includes a source symbol block length indicating the number of source symbols in a source symbol block generated by concatenating the source symbol subblocks.