Patent Document ID: 9160586
Application ID: 14339348
Patent Flag: 1

Claim One:
1. A method comprising: obtaining samples of a received signal via circuitry having an in-phase and quadrature (IQ) mismatch, the samples comprising (i) first samples, including in-phase first samples and quadrature first samples, of a training signal of the received signal and (ii) second samples, including in-phase second samples and quadrature second samples, of a data signal of the received signal; determining an estimated gain imbalance parameter for the IQ mismatch based on (i) an in-phase average value and (ii) a quadrature average value, the in-phase average value being based on the in-phase first samples, and the quadrature average value being based on the quadrature first samples; determining an estimated phase imbalance parameter for the IQ mismatch based on (i) a combined average value, (ii) the estimated gain imbalance parameter, and (iii) a squared average value, the combined average value being based on a pair-wise multiplication of the in-phase first samples and the quadrature first samples, the squared average value being based on squared versions of the in-phase first samples; updating the in-phase second samples based on the estimated gain imbalance parameter to produce updated in-phase second samples; and updating the quadrature second samples by respectively adding quadrature update values to the quadrature second samples to produce updated quadrature second samples, the quadrature update values being respectively based on (i) the estimated phase imbalance parameter and (ii) the updated in-phase second samples.