Patent ID: 8934520
Filing Date: 2015-01-13
Classification: H04B,H04L

Abstract:
1. A method of processing radio signals in a wireless radio receiver to identify an n-ray channel condition comprising: receiving signal samples and estimating a plurality of channel taps from the samples; estimating for each of the channel taps a signal power and a disturbance power; filtering the signal powers to provide filtered signal power quantities; filtering the disturbance powers to provide filtered disturbance power quantities; using the filtered signal power quantities and the filtered disturbance power quantities to determine n strongest channel taps; generating first and second comparison parameters using the n strongest channel taps and at least one other channel tap, wherein the step of generating the first comparison parameter includes determining a ratio of the filtered signal power quantity and the filtered disturbance power quantity for the n strongest channel taps; providing a comparison result based on the first and second comparison parameters and a threshold value, and; identifying an n-ray channel condition from the comparison result.