Patent ID: 7432923

Claim:
A method for position measurement which measures a current location at which a mobile communication terminal exists, comprising steps of: determining GPS position measurement technique, said technique corresponding to one selected from among an assisted GPS position measurement and an autonomous GPS position measurement, wherein the assisted GPS position measurement is a position measurement using assistance information which includes information for capturing a GPS satellite, wherein the assistance information, when necessary, is acquired from a location information server which holds the assistance information, and wherein the autonomous GPS position measurement is a position measurement using a GPS satellite which does not use the assistance information; performing assisted GPS position measurement when said determining corresponds to the assisted GPS position measurement; and performing autonomous GPS position measurement when said determining corresponds to the autonomous GPS position measurement; the method further comprising steps of: determining a specified position measuring technique at which, when a request for position measuring is received, and when a position measuring technique specified is a cell ID position measuring in which location information of a cell in a range of which the mobile communication terminal exists is acquired, the cell ID position measuring is determined to be performed, and moreover, in any one of two cases namely a case in which the position measuring technique specified is a GPS position measurement technique which includes the assisted GPS position measurement and the autonomous GPS position measurement, and a case in which the position measuring technique is not specified, a GPS position measurement is performed; and cell ID position measuring at which, when the cell ID position measuring is determined at the step of determining the specified position measuring technique, the cell ID position measuring is performed, wherein when the GPS position measurement is determined to be performed at the step of determining the specified position measuring technique, the step of determining GPS position measurement technique is executed.