Huawei Technologies Co., Limited

Di Feng

Zhimeng Zhong

Xiaomei Zhang

Jingfeng Qu

Jianyao Zhao

The present disclosure relates to beamforming methods and devices. In one example method, an access network device calculates an uplink channel frequency response, calculates a model parameter in a channel frequency response mathematical model based on the uplink channel frequency response and each uplink subcarrier frequency, where the model parameter has reciprocity on uplink and downlink subcarrier frequencies, constructs a downlink channel frequency response based on the model parameter, the channel frequency response mathematical model, and each downlink subcarrier frequency, calculates a beamforming weight for each downlink subcarrier frequency based on the downlink channel frequency response, and performs downlink beamforming on an antenna array based on the beamforming weight for each downlink subcarrier frequency, where the antenna array is a dual-polarized antenna array or a single-polarized antenna array.

Beamforming method and device

A method and an apparatus for determining a broadcast beam weighted value are provided. The method includes: obtaining an angle path loss spectrum of a target cell at a current moment, where the angle path loss spectrum includes signal path loss values of a target base station in the target cell in a plurality of directions; determining a beam angle power spectrum based on the angle path loss spectrum, where the beam angle power spectrum includes signal transmit powers of the target base station in the plurality of directions, and in the beam angle power spectrum, a signal transmit power in a direction with a relatively large signal path loss value in the angle path loss spectrum is relatively large; determining a broadcast beam weighted value based on the beam angle power spectrum; and forming a target broadcast beam based on the broadcast beam weighted value.

Growing community of inventors

Shenzhen, China

Di Feng