Method of synchronizing a radio terminal of a radio communication network and a corresponding radio terminal

A method for synchronizing a radio terminal in a radio-communication network with a received signal flow, said signal flow comprising a predefined synchronization sequence repeated at predefined time intervals in said signal flow, said method comprising the steps of:

• generating a correlation profile at said radio terminal by correlating a part of said signal flow with said synchronization sequence to reveal correlation peaks indicating the location of said synchronization sequence in said part of signal flow;
• said method being characterized in that it further comprises the steps of:
• accumulating as many correlation profiles as necessary, until a threshold level is reached by at least the largest correlation peak, said correlation profiles being obtained with different parts of said signal flow, and
• updating, during said accumulation, said threshold level depending on a background noise level estimated in said signal flow.