Patent ID: 6377552
Filing Date: 2002-04-23
Classification: H04B

Abstract:
A system for evaluating dynamic range in a communication network, the communication network supporting at least a test channel having a predetermined center frequency, a first channel adjacent to the test channel, and a second channel adjacent to the test channel, the system comprising:a signal generating device for transmitting a test signal on the test channel at a predetermined signal power level; a signal analyzing device for measuring distortion of the test signal, the signal analyzing device comprising: means for measuring power in the test channel to obtain a test channel power level; means for measuring power in the first adjacent channel to obtain a first adjacent power level; means for measuring power in the second adjacent channel to obtain a second adjacent power level; and means for summing the first adjacent channel power level and the second adjacent power level to obtain a total distortion power level; and means for determining, based on said distortion measurement, whether the signal power level is within a range of valid signal power levels; the means for determining comprising: means for quantizing the distortion of the test signal as a ratio of the test channel power level relative to the total distortion power level; means for comparing the quantized value to a set of predetermined quantized values; and means for determining whether the quantized value is the minimum among the set of quantized values.