Patent ID: 7434137
Filing Date: 2008-10-07
Classification: H03M,H04L

Abstract:
1. A retransmission ordering method in a receiver for receiving transmission data by wireless, frame data being encoded with an outer code and then divided into predetermined number of blocks which are encoded with an inner code into the transmission data, the retransmission ordering method comprising the steps of: receiving transmission data; storing received transmission data in a buffer; decoding the transmission data stored in the buffer in accordance with the inner code and outputting a decode result and likelihood information thereof; creating frame data by combining decoded blocks; decoding the frame data in accordance with the outer code; determining whether to perform a retransmission order in units of blocks based on the likelihood information; and transmitting a retransmission order for an applicable block if it is determined that a retransmission is necessary according to the step of determining whether to perform a retransmission order, wherein at the step of determining whether to perform a retransmission order, the retransmission order for the block is inhibited if the number of inner-code errors in a frame consisting of the predetermined number of blocks stays within a limit of what the outer code can correct and it is determined that a retransmission is necessary if the number of inner-code errors in the frame exceeds the limit.