在FDD-LTE后台网优工作中，提取KPI发现同频切换成功率低（如下），怎么处理啊，用华为prs系统怎么发现是哪些基站的问题呢？刚刚接触，求各位资深元老给予详细解答，谢谢了。

                                                                                                                                   
 时间 地市 S1接口切换成功率（%）  系统内切换成功率（%）   LTE重定向到3G的次数(次)  同频切换成功率(%)异频切换成功率(%)
 
05-22 XX   83.6804                98.9375                0                             98.4871                /0
05-23 XX   84.3747                98.9496                0                             98.392                 /0
05-24 XX   83.1896                98.953                 0                             98.223                 /0
05-26 XX   78.3354                99.0612                0                             98.4222                /0
05-27 XX   79.6646                99.1463                0                             98.7844                /0
05-28 XX   87.1675                99.1584                0                             98.9061                /0

先进行同频切换原因分类，再对ＴＯＰ小区进行处理……