By analyzing the relative RSRP difference of each pair of UE, we can eliminate RSRP difference in both offline and online. Therefore, in this paper we propose to use multi-dimensional scaling algorithm to eliminate UE RSRP difference. In addition, UE motion changes the fingerprint length, which leads to fingerprint misalignment. However, due to the UE diversity, reference signal receiving power (RSRP) difference seriously degrades the positioning performance. Based on the minimization of drive-test introduced in 3GPP R10, it not only can be used to collect radio measurements and associated location information for network performance assessment, but also be used to build radio map for the fingerprint-based cellular network positioning system. In recent years, the widespread availability of wireless communication has stimulated research of positioning service for cellular networks.
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