Patent ID: 8537951

Claim:
A method for detecting occurrence of a transmission resynchronization of data packets subject to variable delays in a communications network, the packets received at a network entity and forwarded by the network entity are delayed by a jitter protection time, the network entity comprising a processor and the method comprising performing at the network entity the steps of: determining for a predetermined time period by the network entity a set of arrival time jitter values comprising values corresponding to jitters of data packet arrival time for at least a plurality of the received data packets; determining a peak to peak value by the network entity indicating a largest difference among the values comprised in the determined set of arrival time jitter values; detecting by the network entity an out of range condition when it is verified that at least one arrival time jitter value is larger than an upper threshold or at least one arrival time jitter value is smaller than a lower threshold; comparing by the network entity the peak to peak value with the jitter protection time, when the out of range condition is detected; and detecting by the network entity that a resynchronization occurred on the basis of the comparison of the peak to peak value with the jitter protection time.