Passive intermodulation suppression method and passive intermodulation suppression system

摘要

Embodiments of the present invention disclose a passive intermodulation suppression method and a passive intermodulation suppression system. The method in an embodiment of the present invention comprises the steps of obtaining a first power Pt of an uplink signal transmitted by an antenna by using a target uplink controllable gain module and outputting from a output port of a base station. Obtaining the second power Pb of the received signal, setting the target attenuation of the base station, and adjusting the initial gain value based on the target attenuation to keep the gain of the base station constant. According to the method described in this embodiment, the base station maintains the target attenuation constant in the process of adjusting the gain of the target uplink controllable gain module, thereby reducing the PIM requirement of the passive intermodulation suppression system. Can be reduced.