Method and system for detecting the position of mobile station

A method of detecting the position of a mobile station by using abase station for mobile communication having an adaptive array antenna comprising a plurality of antenna elements, comprising:

• a step of detecting position detection parameters including an arrival angle and a propagation distance of a position detection signal from a mobile station by abase station which receives the position detection signal;
• and
• a step of calculating the position of said mobile station on the basis of said position detection parameters and map information of an area including said base station by the base station or any of stations constructing a mobile communication system.

A mobile communication system comprising a plurality of base stations and a position administrating station connected to each of said base stations via a communication network,

• wherein at least one of said base stations has means for detecting an arrival angle of a position detection signal transmitted from a mobile station and an average received power or propagation distance of said position detection signal, and transmitting the detected values as position detection parameters to said position administrating station, and
• said position administrating station is provided with means for detecting the position of the mobile station on the basis of the position detection parameters received from the base station and the map information of the area including the base station.