Spatial guardbands for terrestrial reuse of satellite frequencies

    公开(公告)号:US06999720B2

    公开(公告)日:2006-02-14

    申请号:US10180281

    申请日:2002-06-26

    Abstract: Satellite radiotelephone systems include a space-based component that is configured to provide wireless radiotelephone communications in a satellite footprint over a satellite radiotelephone frequency band. The satellite footprint is divided into a plurality of satellite cells, in which satellite radiotelephone frequencies of the satellite radiotelephone frequency band are spatially reused. An ancillary terrestrial network is configured to terrestrially reuse at least one of the ancillary radiotelephone frequencies that is used in a satellite cell in the satellite footprint, outside the cell and in some embodiments separated therefrom by a spatial guardband.

    Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems
    222.
    发明授权
    Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems 有权
    用于减少蜂窝卫星系统中卫星馈线链路带宽/载波的系统和方法

    公开(公告)号:US06937857B2

    公开(公告)日:2005-08-30

    申请号:US10328062

    申请日:2002-12-23

    CPC classification number: H04B7/18515 H04B7/2121 H04B7/216

    Abstract: Information content is nonidentically mapped between service link carriers and feeder link carriers at a cellular satellite. A reduced number of satellite feeder link carriers compared to the number of satellite service link carriers and/or a reduced total bandwidth of the satellite feeder link carriers compared to the satellite service link carriers thereby may be obtained.

    Abstract translation: 信息内容在蜂窝卫星的服务链路载波和馈线链路载波之间是非同地映射的。 可以获得与卫星服务链路载波相比数量减少的卫星馈线链路载波数量和/或与卫星服务链路载波相比卫星馈线链路载波减少的总带宽。

    Satellite telecommunications repeaters and retransmission methods
    223.
    发明授权
    Satellite telecommunications repeaters and retransmission methods 失效
    卫星电视中继器和重传方法

    公开(公告)号:US5937332A

    公开(公告)日:1999-08-10

    申请号:US823027

    申请日:1997-03-21

    CPC classification number: H04B7/18536 H04B7/155

    Abstract: Satellite telecommunications repeaters are provided which receive, amplify, and locally retransmit the downlink signal received from a satellite thereby increasing the effective downlink margin in the vicinity of the satellite telecommunications repeaters and allowing an increase the penetration of uplink and downlink signals into buildings, foliage, transportation vehicles, and other objects which can reduce link margin. Both portable and non-portable repeaters are provided.

    Abstract translation: 提供卫星电信中继器,其接收,放大和本地重传从卫星接收的下行链路信号,从而增加卫星电信中继器附近的有效下行链路边缘,并允许将上行链路和下行链路信号的穿透增加到建筑物, 运输车辆和其他可以减少连接裕度的物体。 提供便携式和非便携式中继器。

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