pCell Network 기반 솔루션을 이용한 측위 성능 향상에 대한 연구

Abstract

The currently serviced positioning method uses two technologies concurrently called “Network Based Method” which utilizes received signal from the base station and “Handset Based Method” which applies GPS signal. It means that less accurate method “Network Based Method” is used only when “Handset Based Method” is unavailable to calculate location because of not receiving GPS signal when GPS handset is in the building. But analyzing the statistics of GPS handset positioning method in general, about 25% of total traffic is occurred by “Handset Based Method” and 75% of the total traffic is risen by “Network Based method”. Therefore the importance of “Network Based Method” grows further. In case of “Network Based Method”, research for raising positioning accuracy has been developed because there were lots of cases to detect signal by only one certain base station. This thesis is for proposing new positioning method for non-GPS handset using “pCell DB”, it studies and analyzes the result of improvements of the new method of location measurement called “pCell Method” comparing with old method known as “Cell ID Method”