Method and system for determining tap gain values for a transmit frequency domain equalizer to achieve unity power gain

摘要

A method and system for determining gain taps values for a pre-compensation transmit frequency domain equalizer of a wireless transmitter. Each tap of the equalizer scales a zone and each zone includes at least one sub-carrier. To reduce the number of taps, one or more zones may incorporate more than one sub-carrier. The method includes providing test information for processing by the transmitter, measuring sub-carrier magnitudes generated by the transmitter, normalizing the measured sub-carrier magnitudes, determining an average power value of the normalized sub-carrier magnitudes within each sub-carrier zone, and finding a gain value for each sub-carrier zone so that when multiplied by the average power value of that sub-carrier zone comes closest to a predetermined target value. The normalizing, determining and finding may be repeated for multiple target values to generate a multiple arrays of gain values, where one array that is closest to achieving a unity power gain is selected.