Method for eliminating systematical error components in a set of one-way delay measurement results for communications between two or more computing systems in a communication network, apparatus for performing the method and computer program product
The invention describes a method for eliminating systematical errors in one-way delay (OWD) measurements between two or more computing systems (10) in a communication network. The proposed invention extends the recent state of the art of high-precise OWD measurements, and has the advantage of elimination of the first derivative of the time difference between two computing systems (known as relative clock skew) by means of applying interpolation to one-way delay measurement results at each measurement point between tw reference points. The thus determined interpolation value corresponds to a clock offset and is deducted from the actual measurement result, thereby eliminating the relative clock skew in the measurement result set. This allows for much finer resolution of finding trends and/or over time developments in the measurement result set. The invention further concerns an apparatus to perform the method according to the invention and a corresponding computer program product.
