Method and system for providing location measurement of network based to mobile communication terminal by using g-pcell database

A method and a system for providing network based location measurement to a mobile communication terminal by using a G-pCell database are provided to supply stabler location based service by improving positioning stability and measurement accuracy by reducing effects of a repeater when using a network based location measurement mode. An SPC(SUPL(Secure User Plane Location) Positioning Center) receives a positioning request signal from a mobile communication terminal(S200). By using measurement data included in the positioning request signal received from the mobile communication terminal, a first G-pCell candidate group is extracted from a G-pCell database(S202). A second G-pCell candidate group is extracted(S204). In the second G-pCell candidate group, a G-pCell identifier far from a location of the mobile communication terminal with more than a predetermined distance among the first G-pCell candidate groups is excluded from the first G-pCell candidate group. A G-pCell identifier having the most superior pattern matching with the measurement data among the second G-pCell candidate groups is selected. A latitude and longitude of the selected G-pCell identifier are transmitted to the mobile communication terminal(S214).