Method and apparatus for measuring location of a mobile station in a mobile communication system

The present invention, the present invention (Global Positioning System) GPS as for the GPS pseudo distance (pseudorange) measurements and one pilot phase obtained from the pilot channel signal of the base station (Pilot Phase) how the position location of a mobile station using the measurements and the apparatus of the pseudorange the time of the first measurement and a measured position of a mobile station using a second measurement value obtained from the pilot channel signal of the base station by the mobile station receives the GPS signals to obtain the first measured value and for receiving the pilot channel signal and obtaining the second measured value. And to select the first measurement and a common After obtaining the TOA (Time of Arrival) having a clock error, the first and the predetermined positioning mode according to the number of the second measurement from the second measurement value with the obtained the in accordance with the selected positioning mode, it characterized in that it determines the clock error of the current position and the GPS receiver of the mobile station. Therefore, in accordance with the present invention, GPS pseudorange measurements in the case a mixture of the pilot phase measurements of the base station for measuring the position of the mobile terminal to obtain the TOA measurements have a common clock error can be further expanded to the position location area of ​​the mobile station is. GPS, position measurement, TOA, TDOA, PRM, PPM, clock error