| 摘要 |
The present invention relates to a system and method for time synchronization in a communication network. The communication network includes a plurality of network nodes (S1, ..., SN) each having a respective internal clock (C1, ..., CN), and a reference node (M) having reference clock (CM) and adapted for transmitting synchronization messages within the communication network. At least one network node (S1) is configured to determine an estimated reference clock time (RMT) discretely upon arrival of a synchronization message at said network node (S1). To that end, the network node (S1) includes a controller (R) for determining a controlled time (CT) that is a time-continuous estimate of the discreetly estimated reference clock time (RMT). The controller (R) is adapted to determine the controlled time (CT) based on an input (D) that is extrapolated to an execution time instant (T c ) of the controller (R), said execution time instant (T c ) being separated from the time instant (T S ) of arrival of the synchronization message by a delay (”t delay ). |
