公开(公告)号：US20220264319A1

公开(公告)日：2022-08-18

申请号：US17624691

申请日：2020-06-30

申请人： Weihong LIU ,  Guoqiang LU ,  Edward MAH ,  SMITH Daryl ,  Dimple THOMAS ,  Guoqiang XUE

发明人： Weihong LIU ,  Guoqiang LU ,  Edward MAH ,  Daryl SMITH ,  Dimple THOMAS ,  Guoqiang XUE

IPC分类号： H04W16/28 ,  H04B7/06 ,  H04W24/10 ,  H04B17/318

摘要： Embodiments of a method for measurement of electromagnetic field strength at a point of interest in a coverage area of a 2-dimensional (2D) active antenna system (AAS). The 2D AAS transmits with a load factor of 100 percent. The 2D AAS sweeps a predefined range of azimuth and elevation angles, and azimuth and elevation directions which yield highest EMF at the point of interest are determined. First beamforming weights are determined based on the azimuth and elevation directions and the 2D AAS caused to apply the first beamforming weights. The 2D AAS sweeps a co-phasing angle from 0 to 360 degrees, and a co-phasing angle which yields highest EMF is determined. Second beamforming weights are determined based on azimuth and elevation directions and the co-phasing angle, and the 2D AAS caused to apply the second beamforming weights. The EMF strength at the point of interest is measured.