为了从根本上降低LTE上行链路的干扰,提高系统的容量,从理论上分析了终端使用主瓣宽度为60.的智能天线对上行链路干扰及容量的影响.通过计算得出,系统内所有的终端均使用主瓣宽度为60°的智能天线时,可使相邻小区的干扰功率与本小区干扰功率的比值降低到10-2量级以下,可使多小区的容量达到单小区容量的98.6％以上.%In order to radically reduce the LTE uplink interference and increase the system capacity of LTE, the impact on uplink interference and capacity in the LTE system are theoretically analyzed, in which the terminals using smart antenna that mainly beam width is 60 degrees. Through calculation, this kind of smart antennas is used when all the terminals within the system, a conclusion that interference power of intra-cell is drew compared with interference power of inter-cell which can reduce to less than 10-2, the capacity of multi-cell is up to single cell's 98.6%.
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