Base station distributed handover optimization in LTE self-organizing networks

Methods of self-organizing networks (SON) are an essential part of the latest 3^rd Generation Partnership Project (3GPP) technology Long Term Evolution (LTE). Among the different identified use cases in standard self-organized handover optimization plays an important role concerning the overall radio network performance. In this paper, we present results as obtained from simulations on a handover optimization procedure performed distributed to base stations of the radio network. Based on a simulation scenario which is characterized by heterogeneous radio conditions between neighboring cells we show the procedure´s capability of an efficient and stable modification from initial suboptimal parameter settings towards optimum values of the handover key performance indicators (KPIs).