Patent ID: 6081568
Filing Date: 2000-06-27
Classification: H04L

Abstract:
A method for automatically setting of an optimum number waiting frames (RTF) in a data communication network employing an automatic repeat request (ARQ) protocol, said method comprising the steps of:attaching a forward count control information in a frame to be transmitted from a transmission apparatus during a synchronization establishment phase of signaling;incrementing a value of the forward count control information by one for every frame being transmitted repeatedly during the synchronization establishment phase of signaling until receiving an acknowledgement;copying the value of the forward count control information attached in a received frame at a reception apparatus to a backward count control information to be attached to an acknowledgement frame;sending back the acknowledgement frame from the reception apparatus to the transmission apparatus; andsubtracting the value of the backward count control information in the received frame at the transmission apparatus from the value of the forward count control information for a frame having been transmitted just before.