公开(公告)号：US20010052875A1

公开(公告)日：2001-12-20

申请号：US09833870

申请日：2001-04-12

申请人： Toshiba Tec Kabushiki Kaisha

发明人： Ryuji Kohno ,  Tomonori Sugiyama

IPC分类号： G01S005/02

CPC分类号： G01S3/325

摘要： The directional antenna apparatus of a base station, after sensing the direction of an undesired wave, calculates the optimum amplitude weighting coefficients and optimum phase weighting coefficients for a plurality of directions between the move starting point and move end point of a mobile station and creates a reference table. Then, when receiving a request for communication from the mobile station, the directional antenna apparatus reads weighting coefficients from the reference table, sets them in each antenna element, and points the directivity toward the mobile station, and starts communication. Then, calculating the time when the mobile station arrives at the position corresponding to each direction from the destination of the mobile station and its moving speed, and reads one by one the optimum amplitude and phase weighting coefficients from the reference table, and sets them in each antenna element, and communicates with the mobile station, while tracking the mobile station.

摘要翻译： 基站的定向天线装置在感测不需要的波的方向之后，计算移动站的移动起点和移动终点之间的多个方向的最佳振幅加权系数和最佳相位加权系数，并创建一个 参考表。 然后，当从移动台接收到通信请求时，定向天线装置从参考表读取加权系数，将它们设置在每个天线元件中，并将方向性指向移动台，并开始通信。 然后，计算移动台到达与移动台的目的地的各方向对应的位置及其移动速度的时间，并从参考表逐一读取最佳幅度和相位加权系数，并将它们设置在 每个天线元件，并且在跟踪移动台的同时与移动台进行通信。