An apparatus and method for determining position information of a mobile station (MS). The apparatus directly estimates a propagation delay error by measuring a signal strength of a propagation signal for use in a mobile communication system, and reduces a MS position error. The apparatus reduces the...http://www.google.co.uk/patents/US7203501?utm_source=gb-gplus-sharePatent US7203501 - Apparatus and method for determining position information of a mobile station
