公开(公告)号：US20140200045A1

公开(公告)日：2014-07-17

申请号：US14216124

申请日：2014-03-17

Applicant: QUALCOMM Incorporated

Inventor： Ahmad JALALI ,  Mohammad A. TASSOUDJI ,  Ernest T. OZAKI ,  William G. AMES ,  Leonard N. SCHIFF

IPC: H04W52/24 ,  H04W84/00

CPC classification number: H04W52/241 ,  H01Q1/2291 ,  H01Q1/246 ,  H01Q1/28 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q13/02 ,  H01Q21/062 ,  H01Q21/205 ,  H01Q25/00 ,  H04B7/18506 ,  H04W84/005

Abstract: A method for ground to air communication includes receiving a first pilot signal on a first wide beam from a first ground base station by a first antenna element covering a first range of azimuth angles from an aircraft. Data is received on a directed data beam from the first ground base station by the first antenna element. A second pilot signal is received on a second wide beam from a second ground base station by a second antenna element covering a second range of azimuth angles different than the first range of azimuth angles. A signal strength of the second pilot signal is compared with a signal strength of the first pilot signal. Data reception is switched from the first antenna element to the second antenna element if the signal strength of the second pilot signal is greater than the signal strength of the first pilot signal.

Abstract translation: 一种用于地对空通信的方法包括：通过第一天线元件从第一地面基站接收来自飞机的第一方位角范围的第一宽波束上的第一导频信号。 通过第一天线元件在来自第一地面基站的有向数据波束上接收数据。 第二导频信号通过第二天线元件在第二地面基站的第二宽波束上被接收，该第二天线元件覆盖与第一方位角范围不同的第二方位角范围。 将第二导频信号的信号强度与第一导频信号的信号强度进行比较。 如果第二导频信号的信号强度大于第一导频信号的信号强度，则数据接收从第一天线元件切换到第二天线元件。