Patent ID: 7675846

Claim:
A method for performing measurements by a user equipment (UF) connected to a serving cell (SC) in an OFDMA system that is transmitting a known synchronization channel (SCH) at regular intervals and known pilot symbols on a fraction of sub-carriers, the method comprising the steps of: determining, by the UE, the synchronization position and SCH signal strength for the SC at the UE by correlating a received signal with the known SCH; performing, by the UE, a Fast Fourier Transform (FFT) on the received signal to obtain the signal strength in the frequency domain and using the known pilot symbols to estimate the pilot signal strength; determining, by the UE, the synchronization position and SCH signal strength on at least one neighboring (NB) cell by correlating the received signal with a known synchronization sequence for the NB cell; determining, by the UE, the pilot signal strength for the at least one NB cell based on the SCH signal strength for the NB cell and a ratio γ; and obtaining the SCH timing wherein the time position is chosen such that the squared magnitude of the correlation is at a maximum and the power is the sum of the squared magnitude of said correlation.