According to one exemplary embodiment, a communication device includes: a receiver which receives a frame including data, a first error detection code for detecting an error of the data, a sequence number of the data, and a second error detection code for detecting an error of the sequence number; a first detector which detects the error of the data using the first error detection code; a second detector which detects the error of the sequence number using the second error detection code; a generator which generates an acknowledgement frame having maximum sequence number information regarding a maximum sequence number in a frame for which the error of the sequence number is not detected, and acknowledgement information representing whether there is an error for data in each frame of which the sequence number being equal to or less than the maximum sequence number; and a transmitter which transmits the acknowledgement frame.