System and method of positioning femto cell with passive assistant from macrocell wireless network

A system and a method of positioning femto cell with passive assistant from macrocell wireless network. The method includes: (a) determining when UE is in a low-mobility status through user equipment UE; (b) turning the frequency for deploy the femto cells; (c) acquiring signal samples; d) searching the signal pre-remained specially for the femto cells; e) finding hte femto cells; f) determining that when the femto cell is authorized to use according to the UE; and (g) registing the UE on the femto cell when the femto cell is authorized to use, and when the femto cell is not authorized to use, sending the UE back to a monitoring macrosystem. 种用于用户设备UE定位毫微微小区的设备、方法，该方法包括：(a)通过用户设备UE确定UE何时处于低移动性状态；(b)调谐到部署毫微微小区的频率；(c)取得信号采样；(d)进行搜索以查找为毫微微小区使用而预留的所有特定于小区的信号；(e)找到毫微微小区；(f)通过所述UE确定所述毫微微小区何时被授权使用；(g)当所述毫微微小区被授权使用时，在所述毫微微小区上注册所述UE；并且当所述毫微微小区未被授权使用时，则返回监测宏系统。