Abstract
Mobility Robustness Optimization (MRO) and Mobility Load Balancing (MLB) are two important functions of Self-Optimized Networks (SON). To improve the Key Performance Indicators (KPIs) of handover and load-balancing, conventional MRO & MLB approaches adjust different handover parameters respectively, based on cell-individual or cell-pairs. However, it is hard for these approaches to control the conflict between MRO and MLB, which results in unnecessary handovers for some users. In this work, a novel parameter configuration method for MRO and MLB is proposed, which jointly optimizes the performances of MRO&MLB by the adjustment of the same handover parameters for individual users. This method enables specific users to be correctly handed over to the neighboring cells. Simulation results show the proposed schemes can achieve better performances than the conventional scheme.
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