Abstract: A method for repeating data transmitted incorrectly (ARQ) between subscribers having in each case at least one transmit section, and at least one receive section. A data stream at the transmitting subscriber's end is subdivided into data words having a predetermined length. The data stream is combined to form data words where the individual data words are temporarily stored in a transmit buffer. The individual data words are transmitted, if necessary via a transmit unit, and are received by the receiving subscriber, if necessary in a receive unit. After temporary storage in a receive buffer the received data word is output.