Huawei Technologies Co., Limited

Lianghong Xiang

Weihong Xiao

Hu Zhao

Fangqing Duan

Lanping Gong

An adjustment apparatus provided in this application includes an obtaining unit, a storage unit, and a processing unit, where the processing unit is electrically connected to the obtaining unit and the storage unit; the obtaining unit is configured to obtain antenna position information; the processing unit is configured to obtain latitude and longitude of an antenna or an azimuth of the antenna based on the antenna position information; the storage unit is configured to store the latitude and longitude of the antenna or the azimuth of the antenna; and the processing unit is further configured to read and write the latitude and longitude of the antenna or the azimuth of the antenna in the storage unit according to an instruction of a remote control unit, and the processing unit is further configured to adjust an electrical downtilt of the antenna according to the instruction of the remote control unit.

Adjustment apparatus, antenna, and communications device

Embodiments of the present application disclose a passive intermodulation suppression method and a passive intermodulation suppression system. The method in the embodiments of the present application includes: obtaining, by using a target uplink controllable gain module, a first power Pt of an uplink signal sent by an antenna; obtaining a second power Pb of a signal that is output from an output port of a base station; configuring a target attenuation of the base station; and adjusting the initial gain value based on the target attenuation to keep a gain of the base station constant. According to the method described in the embodiments, the base station can maintain the target attenuation constant in a process of adjusting a gain of the target uplink controllable gain module, thereby reducing a PIM requirement of a passive intermodulation suppression system.

Growing community of inventors

Shenzhen, China

Lianghong Xiang