LOCATING MOBILE TERMINALS

摘要

A method of generating a location estimate for a mobile station in a wireless communications network, the method comprising: receiving first measurement data relating to at least one radio link between the mobile station and a first site and providing a first distance estimate of the mobile station from the first site based on the first measurement data; receiving second measurement data relating to at least one radio link between the mobile station and a second site and providing a second distance estimate of the mobile station from the second site; determining first and second intersection points between a circle centred at the first site of a radius corresponding to the first distance estimate and a circle centred at the second site of a radius corresponding to the second distance estimate, said first and second intersection points lying on opposed sides of a line passing through the first and second sites; and using at least one of the first and second intersection points in the determination of the location estimate.