Method and network node for resynchronizing frames in a synchronous digital transmission system

摘要

Method, network node and system for resynchronize frames in a synchronous digital transmission system (for ex. SDH, ITU Recommendations G.707, G.708, G.709, G.783) with any timing common to any tributary, by implementing the "Higher Path Adaptation " function (Fig. 1).;When updating the interpreted pointer or the generated pointer in order to adapt an input signal to a network node internal synchronism performing positive/negative justification actions by using the flag technique, the invention eliminates the typical prior art errors in flag identification occurring when performing justification actions, by choosing the time to update the pointer value in order to avoid inconsistent comparisons between values belonging to different frames.