Patent ID: 8213963

Claim:
A network-based location measurement method using a pCELL database, comprising the steps of: (a) establishing a pCELL database in which a location measurement service target area is divided into lattices each having a predetermined size; (b) continuously determining whether a request for location measurement occurs by a service subscriber; and (c) when the request for location measurement is generated, comparing fundamental information received from a mobile terminal with the pCELL database, determining a matching pCELL, and reporting the matching pCELL to the service subscriber; wherein the step of determining the matching pCELL in step (c) comprises: (c1) selecting pCELL candidates from the pCELL databases using data required to search for the pCELL from data measured by the mobile terminal; (c2) selecting pCELLs remotely located compared to a predetermined reference location from among the selected pCELL candidates and excluding the selected pCELLs which were remotely located from the pCELL candidates; (c3) determining a pCELL to be the matching pCELL, from the pattern which best matches the data received from the mobile terminal from among the remaining pCELL candidates; and (c4) reporting and transmitting latitude and longitude of the matching pCELL to the service subscriber.