Patent ID: 8155595
Filing Date: 2012-04-10
Classification: H04J,H04L

Abstract:
1. A method for canceling interference between a multicarrier signal and a narrowband signal from a received signal, comprising: (a) from an estimate of a narrowband signal, obtaining a regenerated narrowband signal by eliminating random noise from the estimate of the narrowband signal; (b) obtaining the spectrum of the regenerated narrowband signal; (c) obtaining an estimate of the spectrum of the multicarrier signal by subtracting a spectrum of the regenerated narrowband signal from a spectrum of the received signal; (d) from the estimates of multicarrier signals, obtaining a regenerated spectrum of the multicarrier signal; (e) obtaining a refined estimate of the narrowband signal by subtracting a time domain representation of the regenerated spectrum of the multicarrier signal from the received signal; (f) using the refined estimate of the narrowband signal to be the estimate of the narrowband signal of step (a), repeat steps (a) to (e) for a predetermined number of iterations; and (g) after completing the predetermined number of iterations, recovering the data from the latest regenerated spectrum of the multicarrier signal or the narrowb and signal.