Method and apparatus for spectrum sharing between satellite and terrestrial communication services using temporal and spatial synchronization
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United States of America Patent
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Dec 10, 1996
Grant Date -
N/A
app pub date -
Nov 4, 1994
filing date -
Nov 4, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system and method for spatially and temporally synchronizing satellite (space based) and terrestrial (ground based) communications services using time division multiple access between the two types of service providers is given. Satellite and terrestrial communication services are assigned geographic cell boundaries to prevent conflicting simultaneous use of allocated spectrum. The spatial synchronization of cell boundaries can occur before hand by agreement between the users of the satellite and terrestrial services. This spatial synchronization may conform to geographic as well as political boundaries. Satellite and terrestrial services are assigned time slots to use a given spectrum within a given area. Methods are described for synchronizing the time slots to prevent interference between the services. Synchronization of LMDS and Teledesic services is described in the disclosure of a preferred embodiment.
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