Patent ID: 8385961
Filing Date: 2013-02-26
Classification: H04L,H04W

Abstract:
1. A method comprising acquiring an observation signal for a carrier signal on a carrier which is under consideration for synchronization with a desired cellular system, calculating a power measure of the observation signal, which indicates a received power of said carrier signal, calculating a non-circularity measure of the observation signal, which indicates a non-circularity of said carrier signal, and calculating a ranking measure, which indicates an applicability of said carrier for synchronization with the desired cellular system, based on the calculated power measure and the calculated non-circularity measure, wherein calculating the ranking measure comprises: determining, when non-circularity of said carrier signal is expected to be present in the desired cellular system, and calculating the ranking measure based on an addition of the calculated non-circularity measure to the calculated power measure when it is determined that the desired cellular system is expected to have non-circular statistics in its carrier signal, and calculating the ranking measure based on a subtraction of the calculated non-circularity measure from the calculated power measure when it is determined that the desired cellular system is not expected to have non-circular statistics in its carrier signal.