Patent ID: 7099640

Claim:
A method for identifying whether a channel is a LOS channel or a NLOS channel in a mobile communication system, comprising: A. reading in a power delay profile; B. selecting a path with maximum power amplitude, i.e. a Maximum Path, from the power delay profile; C. estimating an average noise power and arrival time of a First Path and the Maximum Path; D. detecting a Local Maximum Path value within a searching window, and detecting whether a power ratio of the Maximum Path to the Local Maximum Path is greater than a threshold K; E. detecting whether the arrival time difference between the First Path and the Maximum Path is less than a time interval T; F. if the power ratio of the Maximum Path to the Local Maximum Path is greater than the threshold K, and simultaneously the arrival time difference between the First Path and the Maximum Path is less than the time interval T, determining the channel being a LOS channel; otherwise determining the channel being a NLOS channel.