Patent ID: 7755544

Claim:
A method for correcting reference position information of a cell, said method being performed by a server system, said cell being in an area in which a base station can perform a wireless communication with a mobile communication terminal, comprising steps of: storing, in said server system, current location information of the mobile communication terminal; identifying said cell in dependence upon said current location information, wherein the mobile communication terminal currently exists in said cell; identifying an error in said current location information; judging whether said reference position information of the cell is to be corrected based on the current location information; and when a judgment at the step of judging whether the reference position information of the cell is to be corrected is affirmative, correcting the reference position information of the cell based on at least one location information that is stored at the step of storing said current location information; wherein a judgment at the step of judging whether the reference position information of the cell is to be corrected is affirmative when: the error in the current location information is not more than a predetermined value, a distance from a location of the reference position information of the cell to a location corresponding to the current location information is not less than a predetermined distance, and the current location information is acquired at least a predetermined number of times; wherein the predetermined value is less than the predetermined distance.