Encoding apparatus and encoding method in data communication system

An encoding apparatus in a data communication system, the apparatus comprising:

• a converter for receiving a source block including a plurality of source payloads, and for converting the source block to an information block including a plurality of information payloads according to an Information Block Generation (IBG) mode selected from a plurality of IBG modes;
• an encoder for encoding the information block according to a selected encoding scheme to generate a parity block;
• and
• a transmitter for transmitting a delivery block generated by adding the parity block to the source block to a receiver, and for transmitting information indicating the selected IBG mode to the receiver.

A decoding method in a data communication system, the method comprising:

• receiving a delivery block including a source block including a plurality of source payloads and a parity block generated from the source block from a transmitter;
• receiving information indicating a selected Information Block Generation (IBG) mode from the transmitter;
• converting the source block to an information block including a plurality of information payloads according to an IBG mode selected from a plurality of IBG modes;
• and
• decoding the information block and the parity block to recover lost source payloads included in the information block.

A decoding apparatus in a data communication system, the decoding comprising:

• a receiver for receiving a delivery block including a source block including a plurality of source payloads and a parity block generated from the source block, and for receiving information indicating a selected Information Block Generation (IBG) mode from a transmitter;
• a converter for converting the source block to an information block including a plurality of information payloads according to an IBG mode selected from a plurality of IBG modes;
• and
• a decoder for decoding the information block and the parity block to recover lost source payloads included in the information block.