METHODS AND APPARATUS FOR UNIDIRECTIONAL TIMING MESSAGE TRANSPORT OVER PACKET NETWORKS

摘要

Methods and apparatus for synchronizing a first clock (104) of a transmit node (102) and a second clock (112) of receive node (110) in a packet network (103) are provided. Consecutive intervals of time-stamped packets transferred from the transmit node (102) to the receive node (110) are selected. The consecutive intervals have a difference in delay noise within a defined acceptance window. A correction factor is determined for the second clock (112) in accordance with transmit and receive time stamps of transferred time-stamped packets bounding the consecutive intervals. The correction factor is applied to the second clock (112) to synchronize the second clock (112) of the receive node (110) with the first clock (104) of the transmit node (102).