Patent ID: 8233430

Claim:
A communication method for a communication system including a base station and a terminal, the terminal being configured to transmit a data as a new data to the base station, and upon receiving an NAK signal indicating a reception failure from the base station as a response to the transmission of the new data, to transmit the data as a retransmission data to the base station, the communication method comprising: a first step of transmitting by the base station, in response to a transmission request from the terminal, information on a value of a resource for data transmission that is used for a communication between the base station and the terminal; a second step of receiving by the terminal, from the base station, information on the value of the resource for data transmission; a third step of transmitting by the terminal a plurality of data packets as the new data to the base station based on the value of the resource for data transmission, the plurality of data packets excluding ACK and NAK packets; and a fourth step of assigning, by the terminal and independent of the base station, the resource for autonomous retransmission of a data packet from the plurality of data packets to the base station only in response to reception of the NAK signal from the base station indicating transmission failure of the data packet in the third step, wherein the fourth step comprises autonomously retransmitting the data packet from the plurality of data packets without sending a transmission request to the base station for the resource.