As described in Sect. 3.3, geometric characteristic of eNBs is a major positioning impairment which can affect the performance of trilateration based positioning; however, the conventional methods do not utilize the characteristics of hyperbola equations, when they perform weighted averaging in multiple OTDOA based method.
in this paper, we propose a novel weighting method which can reduce the weighting value of several OTDOA from unsuitable deployment of eNB in terms of geometric characteristic.