Patent ID: 6314101
Filing Date: 2001-11-06
Classification: H04L,H04W

Abstract:
A method of detecting a delayed frame in a transport function wherein a plurality of frames are sent from a transmitter to a receiver, the method comprising the steps of:comparing, for a received frame, a frame sequencing counter number with a predetermined threshold value, the frame sequencing counter number being derived from a header of the received frame; anddetecting the received frame as a delayed frame if the frame sequencing counter number exceeds the predetermined threshold value;wherein the plurality of frames is sent in bundles of frames, each bundle including an equal number of frames, the frames within any bundle being sent simultaneously, and wherein the comparing step comprises:comparing the frame sequencing counter number with a threshold value proportional to the product of the number of frames within a bundle and the maximum delay time in frame-length time increments between frames sent in a bundle.