Decoding device and decoding method

摘要

A decoding apparatus and decoding method for performing iteration decoding the suitable number of iterations, and thereby securing the desired transmission quality while decreasing the processing delay. Turbo decoder 301 iterates error correcting decoding on input coded sequences. Error checker 302 decodes an error detecting code contained in a decoded result of the error correcting decoding, and checks whether or not an error remains in the decoded result in turbo decoder 301. Iteration controller 303 instructs turbo decoder 301 to continue the iteration decoding until the number of iterations in the iteration decoding is more than or equal to the constraint number of iterations and error checker 302 determines no error in the decoded result.