Spatial guardbands for terrestrial reuse of satellite frequencies
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United States of America Patent
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Feb 14, 2006
Grant Date -
Mar 20, 2003
app pub date -
Jun 26, 2002
filing date -
Sep 14, 2001
priority date (Note) -
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status (Latency Note)
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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.
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