Signal and Data Processing

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The performance of cells within the radio access network of mobile networks is continuously monitored to enable operators to optimize network quality and coverage in response to environmental changes and user consumption patterns. Drive testing is a widely used method for gathering data on network status across various geographical locations. This approach involves traversing every geographical point, including all streets and passages within a designated area, to assess the network service status at these sites. Operators leverage the valuable data acquired from this process to enhance mobile networks. However, this method is often costly and time-consuming for network operators. This paper presents a novel approach to streamline the data collection process during mobile network drive tests. Instead of navigating every passage in an area, this method advocates for a more efficient and shorter route that can identify points in the city with inadequate RSRP at a reduced cost. Additionally, a new criterion is proposed for evaluating the effectiveness of a route for conducting drive tests. This criterion is based on the route's success rate in locating points with unsatisfactory RSRP in relation to the distance required to traverse it. The proposed routing method is subsequently assessed using real data from previous drive tests alongside the introduced evaluation criterion.

Keywords: Mobile Networks, Drive Test, Route Optimization, Reference Signal Received Power (RSRP)

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