中文说明：多小区、多用户蜂窝小区的建模。其中每个小区内设置一个基站，以基站为圆心，以一定半径在基站附件分布n个用户。可直接运行
English Description：
Multi cell, multi-user cellular cell modeling. One base station is set in each cell, and N users are distributed around the base station with a certain radius. It can run directly