COEXISTENCE AND INCUMBENT PROTECTION IN A COGNITIVE RADIO NETWORK
First Claim
1. A method of dynamic RF spectrum allocation to at least one RF transmitter, comprising:
- receiving a message from a first communication system requesting available RF spectrum over which to transmit RF signals, the message indicating a geographic location of a first non-incumbent transmitter associated with the first communication system;
for the RF spectrum, determining a maximum power level at which the first non-incumbent transmitter may transmit without exceeding a threshold level of interference at least one focal point; and
communicating to the first communication system a RF spectrum list identifying at least the RF spectrum and the determined maximum power level.
2 Assignments
0 Petitions
Accused Products
Abstract
A method (300, 400) and a communication system (104, 106, 200) for dynamic RF spectrum allocation among a plurality of RF transmitters (108, 110, 112). A message can be received from a first communication system. The message can include a request (130) for available RF spectrum over which to transmit RF signals. The message can indicate a geographic location of a first non-incumbent transmitter (112) associated with the first communication system. Further, for the RF spectrum, a maximum power level can be determined at which the first non-incumbent transmitter may transmit without exceeding a threshold level of interference at least one focal point (134). A RF spectrum list (138) identifying at least the RF spectrum and the determined maximum power level can be communicated to the first communication system.
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Citations
20 Claims
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1. A method of dynamic RF spectrum allocation to at least one RF transmitter, comprising:
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receiving a message from a first communication system requesting available RF spectrum over which to transmit RF signals, the message indicating a geographic location of a first non-incumbent transmitter associated with the first communication system; for the RF spectrum, determining a maximum power level at which the first non-incumbent transmitter may transmit without exceeding a threshold level of interference at least one focal point; and communicating to the first communication system a RF spectrum list identifying at least the RF spectrum and the determined maximum power level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of dynamic RF spectrum allocation among a plurality of RF transmitters, comprising:
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communicating a RF spectrum availability request to a cognitive radio controller, the RF spectrum availability request identifying a geographic location of a first non-incumbent transmitter; receiving from the cognitive radio controller a RF spectrum list identifying a plurality of available RF spectrums and, for each of the available RF spectrums, an indication of a maximum power level at which the non-incumbent transmitter may transmit; determining whether the maximum power level for at least one of the plurality of available RF spectrums is sufficient for proper operation of the non-incumbent transmitter; and when it is determined that the maximum power level for at least one of the plurality of available RF spectrums is sufficient for proper operation of the non-incumbent transmitter; from the plurality of available RF spectrums selecting at least one RF spectrum for use by the non-incumbent transmitter; and communicating to the cognitive radio controller a message indicating the selected RF spectrum and a threshold transmit power level that will not be exceeded by the non-incumbent transmitter while utilizing the selected RF spectrum. - View Dependent Claims (14, 15, 16)
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17. A communication system that dynamically allocates RF spectrum allocation among a plurality of RF transmitters, comprising:
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a communication adapter that communicates a RF spectrum availability request to a cognitive radio controller, the RF spectrum availability request identifying a geographic location of a first non-incumbent transmitter, and receives from the cognitive radio controller a RF spectrum list identifying a plurality of RF spectrums and, for each of the available RF spectrums, an indication of a maximum power level at which the non-incumbent transmitter may transmit; a controller that determines whether the maximum power level for at least one of the plurality of available RF spectrums is sufficient for proper operation of the non-incumbent transmitter and, when it is determined that the maximum power level for at least one of the plurality of available RF spectrums is sufficient for proper operation of the non-incumbent transmitter; selects from the plurality of available RF spectrums at least one RF spectrum for use by the non-incumbent transmitter and communicates to the cognitive radio controller a message indicating the selected RF spectrum and a threshold transmit power level that will not be exceeded by the non-incumbent transmitter while utilizing the selected RF spectrum. - View Dependent Claims (18, 19, 20)
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Specification