Method and apparatus for controlling transmitting, receiving, and re-transmission

A receiving apparatus to execute an error correction decoding process based on data obtained by combining received data and re-transmitted data, comprising:

• a storage unit for storing the first received data;
• and a control unit to execute the control, for the received data in the re-transmission other than the particular re-transmission, to combine the data read from the storage unit with the received data and to store the combined data to the storage unit, and wherein the received data in the particular re-transmission is combined with the data read from the storage means with the received data, to store the data part corresponding to the data stored by the storage unit among the combined data to the storage unit but not to store the data part not corresponding to the data stored by the storage unit to the storage unit.

A receiving apparatus for executing the error correction decoding process by using data by combining the received data stored in a storage unit and the re-transmitted data, comprising:

• a determining unit for determining whether the re-transmission is the last re-transmission or not;
• and a control unit to control the storage unit to store the combined data of the data re-transmitted by the last re-transmission when the determining unit determines the re-transmission is not the last re-transmission and to control the storage unit not to store the combined data of the data re-transmitted by the last re-transmission when the determining unit determines the re-transmission is the last re-transmission.