Method and system enabling use of white space radio spectrum using an out of band control channel
First Claim
1. A method of dynamic allocation of spectrum for a communication device where a band of radio frequencies is used with a local, regional, or national frequency allocation that leads to a subset of the bands containing unused or available frequencies in any geographic area, but not all channels are used in all markets due to the need to protect receivers from interference from other stations, comprising the steps of:
- receiving an user channel map on a control channel that is outside the band of interest, containing at least boundary location information for one or more channel resources within a UHF band and communication parameters;
determining at least an approximate location for the communication device;
comparing the approximate location with the boundary location information;
determining which channels can avoid co-channel and adjacent channel interference with licensed users and other unlicensed users based on the comparison, boundary location information, and the communication parameters, andrelaxing the communication parameters if no licensed users are found in the user channel map, tightening the communication parameters if co-channel, adjacent channel, or other interference generating channel use is found within the user channel map, and prohibiting use if a licensed operator is found within the user channel map.
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Accused Products
Abstract
A system and method of dynamic allocation of spectrum for a communication device involves receiving a user channel map (UCM) on a control channel that is outside the band of interest. The UCM can include at least boundary location information for one or more channel resources within a UHF band and communication parameters. The method can determine at least an approximate location for the communication device, compare the approximate location with the boundary location information, and determine which channels can avoid co-channel and adjacent channel interference with licensed users and other unlicensed users based on the comparison, boundary location information, and the communication parameters. The UCM can further include communication parameters such as maximum allowable transmit power, duty cycle, and in use information by other unlicensed and licensed users. The boundary location information can include polygon endpoint calculations and associated technical communication parameters.
54 Citations
18 Claims
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1. A method of dynamic allocation of spectrum for a communication device where a band of radio frequencies is used with a local, regional, or national frequency allocation that leads to a subset of the bands containing unused or available frequencies in any geographic area, but not all channels are used in all markets due to the need to protect receivers from interference from other stations, comprising the steps of:
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receiving an user channel map on a control channel that is outside the band of interest, containing at least boundary location information for one or more channel resources within a UHF band and communication parameters; determining at least an approximate location for the communication device; comparing the approximate location with the boundary location information; determining which channels can avoid co-channel and adjacent channel interference with licensed users and other unlicensed users based on the comparison, boundary location information, and the communication parameters, and relaxing the communication parameters if no licensed users are found in the user channel map, tightening the communication parameters if co-channel, adjacent channel, or other interference generating channel use is found within the user channel map, and prohibiting use if a licensed operator is found within the user channel map. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system of dynamic allocation of spectrum for a communication device where a band of radio frequencies is used with a local, regional, or national frequency allocation that leads to a subset of the bands containing unused or available frequencies in any geographic area, but not all channels are used in all markets due to the need to protect receivers from interference from other stations, comprising:
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a receiver for receiving an user channel map on a control channel that is outside the band of interest, wherein the user channel maps contains at least boundary location information for one or more channel resources within a UHF band and communication parameters; a processor coupled to the receiver, wherein the processor is operable to; determine at least an approximate location for the communication device; compare the approximate location with the boundary location information; determine which channels can avoid co-channel and adjacent channel interference with licensed users and other unlicensed users based on the comparison, boundary location information, and the communication parameters; and relax the communication parameters if no licensed users are found in the user channel map, tighten the communication parameters if co-channel, adjacent channel, or other interference generating channel use is found within the user channel map, and prohibit use if a licensed operator is found within the user channel map. - View Dependent Claims (15, 16, 17)
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18. A system of dynamic allocation of spectrum for a communication device where a band of radio frequencies is used with a local, regional, or national frequency allocation that leads to a subset of the bands containing unused or available frequencies in any geographic area, but not all channels are used in all markets due to the need to protect receivers from interference from other stations, comprising:
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a receiver for receiving an user channel map on a control channel that is outside the band of interest, wherein the user channel maps contains at least boundary location information for one or more channel resources within a UHF band and communication parameters; a processor coupled to the receiver, wherein the processor is operable to; determine at least an approximate location for the communication device; compare the approximate location with the boundary location information; determine which channels can avoid co-channel and adjacent channel interference with licensed users and other unlicensed users based on the comparison, boundary location information, and the communication parameters; and determine how to avoid interference by determining a probability that a given user device will cause interference to a licensed user device by multiplying (P1) the probability that a given location does not have coverage on white space channel “
N”
times (P2) the probability that a given user device is in the proximity of a licensed receiver to cause interference.
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Specification