Radio communication system, radio transmitting apparatus and radio receiving apparatus

A radio transmitting apparatus that transmits a packet to a radio receiving apparatus using a hybrid automatic repeat request (HARQ) scheme, comprising:

• a moving speed acquiring unit configured to acquire a moving speed of a radio communication terminal which is the radio transmitting apparatus or the radio receiving apparatus;
• a selection unit configured to select a transmission method of an information bit and an error correction bit which are transmitted under the HARQ scheme, based on the moving speed acquired by the moving speed acquiring unit;
• and
• a transmitting unit configured to perform initial transmission and retransmission of the packet according to the transmission method selected by the selection unit.

A radio receiving apparatus that receives a packet transmitted from a radio transmitting apparatus using a hybrid automatic repeat request (HARQ) scheme, comprising:

• a moving speed acquiring unit configured to acquire a moving speed of a radio communication terminal which is the radio transmitting apparatus or the radio receiving apparatus;
• a selection unit configured to select a transmission method of an information bit and an error correction bit which are transmitted under the HARQ scheme, based on the moving speed acquired by the moving speed acquiring unit;
• and
• a notification unit configured to notify the transmission method selected by the selection unit to the radio transmitting apparatus.