Method and system for determining spectrum availability within a network
First Claim
1. A method for determining spectrum availability for a transceiver, the method comprising:
- obtaining data from a database;
determining a probability of a presence of a transmitter in a grid cell;
assigning an instantaneous belief indicator, an instantaneous disbelief indicator, and an instantaneous ignorance indicator to the grid cell based at least in part upon the data obtained from the database;
determining a cumulative belief indicator, a cumulative disbelief indicator, and an ignorance indicator using the instantaneous belief indicator, the instantaneous disbelief indicator, and the instantaneous ignorance indicator; and
indicating spectrum availability in the grid cell based on the cumulative belief indicator, the cumulative disbelief indicator, and an ignorance indicator.
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Abstract
A method and transceiver for determining spectrum availability within a give area is disclosed. The given area includes cells in a grid. A belief evaluator receives a measurement from a signal and assigns an instantaneous belief indicator, an instantaneous disbelief indicator and an instantaneous ignorance indicator based on a detection threshold and the power level of the measurement. The indicators quantify the probability of a presence of a transmitter within the grid cell. A belief accumulator uses the instantaneous indicators along with accumulated belief, disbelief and ignorance indicators from previous measurements to determine cumulative belief, disbelief and ignorance indicators. The accumulated belief, disbelief and ignorance indicators are the results of previous measurements and belief/disbelief/ignorance determinations for the grid cell. An allocator indicates the status of the grid cell and whether a spectrum is available. If a spectrum is available, then the grid cell is added to other available cells within the area to generate the spectrum hole.
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Citations
20 Claims
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1. A method for determining spectrum availability for a transceiver, the method comprising:
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obtaining data from a database; determining a probability of a presence of a transmitter in a grid cell; assigning an instantaneous belief indicator, an instantaneous disbelief indicator, and an instantaneous ignorance indicator to the grid cell based at least in part upon the data obtained from the database; determining a cumulative belief indicator, a cumulative disbelief indicator, and an ignorance indicator using the instantaneous belief indicator, the instantaneous disbelief indicator, and the instantaneous ignorance indicator; and indicating spectrum availability in the grid cell based on the cumulative belief indicator, the cumulative disbelief indicator, and an ignorance indicator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for determining spectrum availability for a transceiver, the method comprising:
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obtaining data from a database; determining a probability of a presence of a transmitter in a grid cell; assigning an instantaneous belief indicator, an instantaneous disbelief indicator, and an instantaneous ignorance indicator to the grid cell; determining a cumulative belief indicator, a cumulative disbelief indicator, and an ignorance indicator using one or more of;
the instantaneous belief indicator, the instantaneous disbelief indicator, the instantaneous ignorance indicator, and the data obtained from the database; andindicating spectrum availability in the grid cell based on the cumulative belief indicator, the cumulative disbelief indicator, and an ignorance indicator. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A transceiver comprising:
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a data receiver to obtain data from a database; a belief evaluator to assign a probability of a presence of a transmitter in a grid cell and to determine an instantaneous belief indicator, an instantaneous disbelief indicator and an instantaneous ignorance indicator for the grid cell within an area based upon one or more of;
a measurement of a power level, a detection threshold, the probability, and data obtained by the data receiver;a belief accumulator to determine a cumulative belief indicator, a cumulative disbelief indicator and an ignorance indicator for the presence of a transmitter within the grid cell based upon one or more of;
the instantaneous belief indicator, the instantaneous disbelief indicator, the instantaneous ignorance indicator, accumulated belief, disbelief and ignorance indicators, and data obtained by the data receiver, in a group behavior algorithm; andan allocator to indicate spectrum availability within the grid cell according to the cumulative belief indicator, the cumulative disbelief indicator, and ignorance indicator.
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Specification