METHOD AND SYSTEM ENABLING USE OF WHITE SPACE RADIO SPECTRUM USING DIGITAL BROADCAST SIGNALS
First Claim
1. A method of dynamic allocation of spectrum for a communication device where a UHF band is currently unused for licensed television broadcasting, comprising the steps of:
- determining a location of a user device using GPS or other signals received at the user device using signal strength or time distance of arrival of those signals;
determining which UHF television broadcast channels are available for use by the user device for white space reception;
determining a maximum allowed transmission power for a given channel based on signal strength for the given channel and on adjacent channels; and
transmitting the maximum allowed transmission power and location by the user device to a remote server for sharing information with other devices.
1 Assignment
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Accused Products
Abstract
A system (10) and method (50 or 70) of dynamic allocation of spectrum for a communication device where a UHF band is currently unused for licensed television broadcasting involves determining (51) a location of a user device using GPS or other signals (such as television broadcast signals) received at the user device using signal strength or time distance of arrival of those signals. The method can determine (52) which UHF television broadcast channels are available for use by the user device and determine (53) a maximum allowed transmission power for a given channel based on signal strength for the given channel and on adjacent channels before transmitting (54) the maximum allowed transmission power and location by the user device to a remote server for sharing information. The method can receive (55) polygon endpoints from a television broadcast defining the location of usable reception of the television broadcast.
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Citations
20 Claims
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1. A method of dynamic allocation of spectrum for a communication device where a UHF band is currently unused for licensed television broadcasting, comprising the steps of:
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determining a location of a user device using GPS or other signals received at the user device using signal strength or time distance of arrival of those signals; determining which UHF television broadcast channels are available for use by the user device for white space reception; determining a maximum allowed transmission power for a given channel based on signal strength for the given channel and on adjacent channels; and transmitting the maximum allowed transmission power and location by the user device to a remote server for sharing information with other devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system of dynamic allocation of spectrum for a communication device where a UHF band is currently unused for licensed television broadcasting, comprising:
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a transceiver; and a processor coupled to the transceiver, wherein the processor is operable to; determine a location of a user device using GPS or other signals received at the user device using signal strength or time distance of arrival of those signals; determine which UHF television broadcast channels are available for use by the user device for white space reception; determine a maximum allowed transmission power for a given channel based on signal strength for the given channel and on adjacent channels; and transmit the maximum allowed transmission power and location by the user device to a remote server for sharing information with other devices. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of dynamic allocation of spectrum for a communication device where a UHF band is currently unused for licensed television broadcasting, comprising the steps of:
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determining a location of a user device using GPS or other signals received at the user device using signal strength or time distance of arrival of digital television signals; receiving polygon endpoints from a television broadcast defining the location of usable reception of the television broadcast; and determining which UHF television broadcast channels are available for use for white space reception by the user device for a given location based on the location of the user device, the polygon endpoints, and signal strength measurements for co-channel and adjacent channels. - View Dependent Claims (20)
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Specification