Patent Document ID: 8588332
Application ID: 13567724
Patent Flag: 1

Claim One:
1. A method for an apparatus for generating covariance matrices A and B for each data capture of a transmit signal, the covariance matrices A and B for use in computing weights W and producing a pre-distorted transmit signal to cancel nonlinearities created by a distorting element or distorting system when transmitting the transmit signal, the method comprising: providing in the apparatus coefficient estimator circuitry configured for: establishing power level ranges or bins for the transmit signal as received and at a highest power level for the received transmit signal; when a predetermined number of data captures of the transmit signal are received that fall within the power level ranges or bins, averaging covariance matrices A and B computed for the data captures within the power level ranges or bins to generate averaged high end covariance matrices A and B, and scaling the averaged high end covariance matrix A by a first scaling factor and scaling the averaged high end covariance matrix B by a second scaling factor to compute extrapolated covariance matrices A and B; and generating covariance matrices A and B for data captures of a transmit signal having a power level below a particular threshold utilizing the extrapolated covariance matrices A and B.