Patent ID: 8631296

Claim:
An automatic retransmission controller used in a transmitter in an automatic retransmission system including the transmitter and a receiver, said transmitter transmitting to the receiver a frame including a plurality of data packets, each said data packet including two or more coded data blocks, each said coded data block having a check for the coded data block itself, said receiver determining whether each said coded data block as a whole is correctly received based on said check and feeding back an information showing whether each of the coded data blocks as a whole is correctly received, said automatic retransmission controller comprising: a responsive reception unit that receives the information fed back from the receiver; a retransmission judging unit that determines coded data blocks to be retransmitted according to the information received by the responsive reception unit; and a data acquisition unit that acquires a part of data in each of the coded data blocks to be retransmitted judged by the retransmission judging unit for combination to form one retransmission coded block, when there are two or more coded data blocks to be retransmitted, wherein the retransmission coded block has the same size as that of another coded data block in a frame comprising the retransmission coded block, and the data acquisition unit determines proportions of the part of data acquired from each of the coded data blocks to be retransmitted to the corresponding data block according to reliability information fed back from the receiver or lengths of the coded data blocks.