Patent ID: 9252742
Filing Date: 2016-02-02
CPC Classification: H03H,H04B

Claim Text:
1. A method for setting a cut-off frequency of an analog filter of a reception device for wireless communication, the method comprising the steps of: obtaining, by the reception device, a deviation value corresponding to an error between a first gain value based on an ideal transfer function curve and a second gain value based on a measured transfer function curve at an arbitrary frequency of a frequency band in which a constant interval is maintained between a slope of the ideal transfer function curve and a slope of the measured transfer function curve; and correcting, by the reception device, the cut-off frequency that is used to measure the measured transfer function curve in a real environment, based on the obtained deviation value, wherein the first gain value is maintained constant despite a change in frequency on both the ideal transfer function curve and the measured transfer function curve, the second gain value is obtained at a second arbitrary frequency of a second frequency band in which a gain value varies depending on a change in frequency on both the ideal transfer function curve and the measured transfer function curve, and the deviation value is obtained by subtracting the second gain value and a critical error value from the first gain value.