Patent ID: 9438285
Filing Date: 2016-09-06
CPC Classification: H04B,H04J

Claim Text:
1. A method of detecting intermodulation distortion affecting a received signal in a wireless receiver, the method comprising: determining a measurement indicative of intermodulation distortion based on at least one transmit signal, the measurement indicative of intermodulation distortion being an instantaneous value of a product of baseband values of two transmit signals; when the measurement indicative of intermodulation distortion exceeds a first pre-determined level, collecting at least one sample of an amplitude of a signal output by the wireless receiver in a first data set, the first pre-determined level being a specified level greater than a average value of the product of the baseband values; when the measurement indicative of intermodulation distortion does not exceed a second pre-determined level, the second predetermined level being less than the first predetermined level and is specified level less than an average value of the product of the baseband values, collecting at least one sample of an amplitude of the signal output by the wireless receiver in a second data set; performing a comparison based on data of the first data set and on data of the second data set to determine a measure of intermodulation distortion to be migitaed, the comparison being a comparison of a mean value of the first data set to a mean value of the second data set; and causing the intermodulation distortion in the received signal to be migitated based on the determined measure of the intermodulation distortion.