Automatic repeat request protocol

And second communication nodes during the first communication communication between nodes; the first node and a data unit sequence of the second transmitting node. The first communication node by with the data unit of one or more transmission or simply is received or is received wrongly (i.e. associated of destruction). And the first transmitting node a reissue to the second the node is not received or error and a request of one or more data unit. The transmission repeat request starting a timer retransmission. Reissues the timer to consider according reissues the support is contacted with the data unit of data unit and reproduction of the second node and second node repeat request is at a time delay cycle of the first lower node. When the timer indicated when the time delay cycle of/due, starting the counter. The counter-based value determined, wherein all the data unit of repeat request are received correctly. A device for confirming the request one or more data unit has been reissued and correcting method, and does not as the measuring. On the other side, and one or more data unit of the repeat request is not connected to the received or is received wrongly; and duplicates the process.