Method and system for making unlicensed priority transmissions
First Claim
1. A system for making transmissions on unlicensed band frequencies, said system comprising:
- means for making intermittent transmissions on frequencies in a licensed band such that said licensed transmissions produce sideband signals in an adjacent unlicensed band;
means for making intermittent transmissions on frequencies in said adjacent unlicensed band; and
,means for coordinating said unlicensed transmissions with said licensed transmissions so that said sideband signals preempt said adjacent unlicensed band for said unlicensed transmissions by interfering with transmitters making other intermittent transmissions on frequencies in said adjacent unlicensed band.
3 Assignments
0 Petitions
Accused Products
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.
54 Citations
16 Claims
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1. A system for making transmissions on unlicensed band frequencies, said system comprising:
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means for making intermittent transmissions on frequencies in a licensed band such that said licensed transmissions produce sideband signals in an adjacent unlicensed band; means for making intermittent transmissions on frequencies in said adjacent unlicensed band; and
,means for coordinating said unlicensed transmissions with said licensed transmissions so that said sideband signals preempt said adjacent unlicensed band for said unlicensed transmissions by interfering with transmitters making other intermittent transmissions on frequencies in said adjacent unlicensed band. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for making transmissions on unlicensed band frequencies, said method comprising:
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making intermittent transmissions on frequencies in a licensed band such that said licensed transmissions produce sideband signals in an adjacent unlicensed band, making intermittent transmissions on frequencies in said adjacent unlicensed band, and coordinating said unlicensed transmissions with said licensed transmissions so that said sideband signals preempt said adjacent unlicensed band for said unlicensed transmissions by interfering with other intermittent transmissions on frequencies in said adjacent unlicensed band. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification