首页> 外国专利> SPECTRUM SHARING BETWEEN AN AIRCRAFT-BASED AIR-TO-GROUND COMMUNICATION SYSTEM AND EXISTING GEOSTATIONARY SATELLITE SERVICES.

SPECTRUM SHARING BETWEEN AN AIRCRAFT-BASED AIR-TO-GROUND COMMUNICATION SYSTEM AND EXISTING GEOSTATIONARY SATELLITE SERVICES.

机译:基于飞机的空对地通信系统与现有的地球静止卫星服务之间的频谱共享。

摘要

The present Spectrum Sharing System implements spectrum reuse between aircraft-based Air-To-Ground (ATG) communication systems and Geostationary Satellite Service systems. This is accomplished by managing the radio frequency transmissions in the volume of space in which the aircraft operates, with interference between the Spectrum Sharing System and the Geostationary Satellite Service system being reduced by implementing reversed uplink and downlink radio frequency paths in the common spectrum. The Spectrum Sharing System also avoids interfering with Geostationary Satellite Services' earth stations which are pointed towards the satellites' orbital arc by relying upon a combination of the earth stations' highly directive antenna patterns and the Spectrum Sharing System ground station antenna pattern, and to avoid interfering with satellites in their orbital arc by assuring that power levels radiated in that direction by the Spectrum Sharing System ground stations are below the level that would create interference.
机译:本频谱共享系统实现了基于飞机的空对地(ATG)通信系统和对地静止卫星服务系统之间的频谱重用。这是通过管理飞机运行空间中的射频传输来实现的,同时通过在公共频谱中实现反向上行链路和下行链路射频路径来减少频谱共享系统和对地静止卫星服务系统之间的干扰。频谱共享系统还依靠地球站的高度定向天线方向图和频谱共享系统地面站天线方向图的组合,避免干扰指向卫星轨道弧的地球静止卫星服务的地球站,并避免确保频谱共享系统地面站沿该方向辐射的功率水平低于会产生干扰的水平,从而干扰卫星在其轨道弧中的位置。

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