Patent ID: 6356608
Filing Date: 2002-03-12
Classification: H04B,H04L,H04W

Abstract:
In a communication system including at least one transmitter and at least one receiver, a method for determining a location of a frequency synchronization signal among data transmitted from said at least one transmitter and received by said at least one receiver, the method comprising the steps of:a) calculating a peak value representing a signal transmitted from said at least one transmitter and detected by said at least one receiver; b) estimating a frequency offset between a carrier frequency of said at least one transmitter and a frequency reference of said at least one receiver; c) estimating a quality factor using the estimated frequency offset; and d) determining whether the peak value and the quality factor meet predetermined peak and quality threshold conditions; e) when both of the predetermined peak and quality threshold conditions are met, storing the peak value, frequency offset, and quality factor and repeating steps a)-d); and f) when either of the predetermined peak and quality threshold conditions is not met, determining the location of the frequency synchronization signal as the location of a stored peak value and a stored quality factor.