ROBUST COEFFICIENT COMPUTATION FOR ANALOG INTERFERENCE CANCELLATION

摘要

Aspects of the disclosure are directed to interference cancellation. A method of performing interference cancellation in a wireless device having a receiver, a coefficient controller and an analog interference cancellation (AIC) circuit includes utilizing the receiver to receive a signal; utilizing the coefficient controller to compute a first cost function value using a first set of coefficients, to compute a second set of coefficients using a first coefficient control algorithm, to compute a second cost function value using the second set of coefficients, to compare the second cost function value with the first cost function value, and to determine whether to apply the first set or the second set of coefficients based on the comparison; and utilizing the AIC circuit to apply the first or second set of coefficients to filter a reference signal and the receiver to subtract the filtered reference signal from the received signal for interference cancellation.

主权项

1. A method for interference cancellation, comprising:
utilizing a receiver to receive a transmission signal; computing a first cost function value utilizing a first set of coefficients; computing a second set of coefficients utilizing a first coefficient control algorithm; computing a second cost function value utilizing the second set of coefficients; comparing the second cost function value with the first cost function value to yield a comparison; utilizing the comparison to determine whether to apply the first set or the second set of coefficients for the interference cancellation; and applying one of the first set or the second set of coefficients to filter a reference signal and subtracting the filtered reference signal from the received transmission signal for the interference cancellation.