METHOD TO EXTRACT AND REPRESENT TERRAIN OBSTACLES FOR RADIO NETWORK OPTIMIZATION FROM MEASURED DRIVE-TEST DATA

摘要

PURPOSE: A method for extracting geographical information for optimizing wireless network using a measured data is provided to automatically optimize the wireless network while improving accuracy of interpretation for radio wave. CONSTITUTION: A base station data and a measurement data are obtained(111). The measured data about a first base station is classified according to the influence to a geographical feature(112). LOS(Line-Of-Sight) and NLOS(Non-LOS) are classified by comparing a measured signal strength with a predicted signal strength. The measured data is determined as LOS when the measured signal intensity is greater than the predicted signal intensity. A boundary point between the classified data is determined(113). The geographical feature information is extracted(114) using the determined boundary point.