According to some embodiments of the invention there is provided a method for evaluating a performance of a cellular radio network. The method comprises receiving two or more call detail records from a repository of a cellular radio network, wherein the cellular radio network comprises two or more directional sector antennas. The method comprises identifying two or more antenna pairs among the directional sector antennas, each one of the antenna pairs used to perform one of multiple subscriber calls documented in the call detail records. The method comprises calculating two or more sector pair usage parameters one for each of the antenna pairs according to an analysis of respective subscriber calls. The method comprises analyzing the sector pair usage parameters to evaluate a performance of the cellular radio network.
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