A packet retransmission method according to the feedback information

A packet retransmission method according to the feedback information is disclosed. Receiving a packet retransmission method according to the feedback information according to an embodiment of the present invention, acknowledgment information indicating a decoding success or failure of, the channel state information and the packet after the transmitter transmits a packet from the receiver, the acknowledgment If the information that indicates a decode failure, comprises the step of changing the retransmission scheme according to the channel state information and sends a retransmission packet for the packet according to the changed retransmission scheme. According to embodiments of the present invention, since, depending on the information fed back from the receiving end to change the retransmission scheme at the transmitting end to retransmit the packet, to improve the decoding probability of the receiving end, so that there is an effect that can increase the efficiency of the retransmission. HARQ, the retransmission packet, the feedback information, 3GPP LTE, IEEE 802.16m