Patent ID: 7366119

Claim:
A method of receiving downward link data transferred from a communication system with coding type determination in a user terminal, the method comprising: a first step of monitoring variation of radio environments from the terminal receiving downward link packets sequentially; a second step of informing the system of a coding type to be changed and sequence numbers of retransmission packets to be received by using the coding type after determining the coding type in accordance with the variation of the radio environments; and a third step of receiving sequentially the retransmission packets with a transfer rate in accordance with the coding type, wherein the second step is carried out so that the terminal informs the system the sequence numbers of the retransmission packets to be received with the transfer rate, wherein the terminal generates a control message including the coding type and the sequence numbers to be transmitted to the system, wherein the terminal generates the sequence numbers of packets except reassembled packets to be transferred from a second layer to a higher layer of the terminal.