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 comprising:
dividing a source packet block including source packets into a plurality of source packet subblocks; converting the plurality of source packet subblocks into a plurality of source symbol subblocks; generating a plurality of first repair symbol blocks by encoding each of the plurality of source symbol subblocks by a first error correction code, each of the plurality of first repair symbol blocks comprising at least one first repair packet; generating a second repair symbol block by encoding the plurality of source symbol subblocks by a second error correction code, the second repair symbol block comprising at least one second repair packet; and transmitting the plurality of first repair symbol blocks and the second repair symbol block, wherein the at least one first repair packet comprises a first repair payload identification including information indicating a number of source symbols in a corresponding source symbol subblock, wherein the at least one second repair packet comprises a second repair payload identification including information indicating a number of source symbols in the source packet block.