Method and system for making unlicensed priority transmissions
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United States of America Patent
Stats
-
Dec 15, 1998
Grant Date -
N/A
app pub date -
May 24, 1995
filing date -
May 24, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A first PCS unit monitors carrier activity of other PCS units in an unlicensed frequency band adjacent to a licensed frequency band used by the first PCS unit, which has a microprocessor that compiles a history table of this other carrier activity. The first PCS unit then uses the history table to transmit on the licensed frequency band an interference signal synchronized with the predicted occurrence of the other carrier activity such that the permitted sideband signals of the interference signal in the adjacent unlicensed band causes the other PCS units to stop broadcasting on the adjacent unlicensed band. The first PCS unit then begins broadcasting on both the adjacent unlicensed band and the licensed band, a message being embedded in these broadcasts to advise intended receiving PCS units that both bands are now available for communication sessions with the first PCS unit.
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