Patent ID: 7907673
Filing Date: 2011-03-15
Classification: H04L

Abstract:
1. A method of ascertaining a signal power of an Orthogonal Frequency Division Multiplexing (OFDM) signal, the method comprising: cellular communication equipment performing the following: ascertaining a plurality of channel estimates from the OFDM signal; estimating one or more compensating phase shift values for aligning the plurality of channel estimates with respect to phase; generating a plurality of phase corrected channel estimates by using the one or more compensating phase shift values to align the plurality of channel estimates with respect to phase; and coherently combining the phase corrected channel estimates, thereby ascertaining the signal power of the OFDM signal, wherein: estimating the one or more compensating phase shift values for aligning the plurality of reference symbols with respect to phase comprises: coherently combining the phase corrected channel estimates comprises: