1. A method of position determination for a mobile station, the method comprising: determining a plurality of measurements for position determination of the mobile station from position determination signals received at the mobile station; estimating a probability that each of the plurality of measurements is a false alarm to produce a plurality of probability estimates before determining a consistency among the plurality of measurements; determining a reliability indicator for each of the plurality of probability estimates to produce a plurality of reliability indicators; and eliminating one of the plurality of measurements from position determination using the plurality of reliability indicators in response to a determination that the plurality of measurements are not consistent, the plurality of reliability indicators being determined respectively for the plurality of measurements individually.