Patent ID: 7688774

Claim:
A method, comprising: receiving a signal in a first radio system, a second radio system that employs a time slot structure in data transmission operating on at least partly the same geographical area as the first radio system; controlling the cancellation of interference from the signal received to be detected in the first radio system on the basis of the timing employed in the time slot structure of the second radio system; locating a time instant of a time slot of the second radio system in the signal received at the first radio system; and controlling interference cancellation in the first radio system according to the time instant of the time slot of the second radio system; wherein locating the time instant of the time slot of the second radio system in the signal received at the first radio system comprises: measuring the power values of the signal received; and sliding across the power values a measurement window that is longer than the time slot and providing an averaging across the time slot, until a measurement window location is found where a costs function showing the differences between the power level of the measurement window and the power values of the received signal obtains its optimum value.