Patent ID: 8144573
Filing Date: 2012-03-27
Classification: H04J,H04L,H04W

Abstract:
1. A method for performing measurements by a user equipment (UE) 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: determining, by the UE, the synchronization position and SCH signal strength (P performing, by the UE, a Fast Fourier Transform (FFT) on the received signal to obtain the SCH signal strength in the frequency domain and using the known pilot symbols to estimate the pilot signal strength (P 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; and 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=P