Reducing interference between users in a communications system through time scattering
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United States of America Patent
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-
Dec 14, 2010
Grant Date -
Mar 18, 2004
app pub date -
Jun 23, 2003
filing date -
Jul 23, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Time-scattering of data is employed to reduce the interference effects, such as, error rate, between terminals disposed in nearby beams, or cells, of a communication system. A scattering schedule is determined, typically by a gateway, for a terminal. Scattering instructions, based at least in part on that scattering schedule, are provided to the terminal. The scattering instructions provide terminals with information suitable for controlling the temporal scattering of time slot data to be transmitted by the terminals so that interference impact of nearby out-of-beam terminals is reduced. Time-scattered data received by a receiver remote from the terminal is returned to the desired order by sorting the data in accordance with the scattering schedule to achieve a reversing of the scattering. Time-scattering may be applied to data moving in either or both of the forward and reverse directions of a communication system.
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