Method and system for the allocation of UWB transmission based on spectrum opportunities
First Claim
1. A method for efficiently utilizing spectrum resources, comprising:
- determining multiple spectrum opportunities, wherein each opportunity is identified by a frequency range and a time duration;
determining whether signals are present in said identified frequency range, wherein if the signals are present, then analyzing said signals and determining the characteristics of said signals;
if the signals are not present in said identified frequency range, then transmitting desired signals using fixed operating conditions;
wherein if the signals are present in said identified frequency range, thendetermining a set of altered transmission characteristics based on the determined signal characteristics to allow for transmission of a desired signal in said identified frequency range, wherein said altered transmission characteristics avoid interference with signals expected in said frequency range; and
transmitting said desired signal over the multiple spectrum opportunities simultaneously using said altered transmission characteristics when said transmission occurs during said time duration;
wherein said determining multiple spectrum opportunities comprises;
determining a location of a receiving device;
obtaining location and transmission characteristics for known transmitters from at least one database; and
determining an estimated received signal characteristics based on the location and transmission characteristics of said transmitters and a location of said receiving device.
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Accused Products
Abstract
A method and system for efficiently utilizing frequency spectrum resources is disclosed. The method comprises the steps of determining at least one spectrum opportunity (510), wherein the opportunity is identified by a frequency range and a time duration, determining a set of altered transmission characteristics (515, 517) to allow transmission of a desired signal in the identified frequency range, wherein the altered transmission characteristics avoid interference with signals expected in the frequency range, and transmitting said desired signal using the altered transmission characteristics when the transmission occurs during said time duration. In one aspect of the system, the step of determining at least one opportunity comprises the steps of receiving signals in known frequency ranges, and determining the characteristics of the received signals. The system comprises a receiving unit (1001) for receiving information items regarding at least one receivable signal, a processing unit (862) for determining characteristics of the at least one received signal, a managing unit (864) for altering transmission characteristics of a desired signal based on the determined received signal characteristics, wherein the altered transmission characteristics avoid interference with the received signals and a transmission unit (866) receiving said altered transmission characteristics to transmit said desired signal. In one aspect, the desired signal transmission characteristics are altered in a frequency range/time period to avoid interference with received signals in the frequency range.
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Citations
14 Claims
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1. A method for efficiently utilizing spectrum resources, comprising:
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determining multiple spectrum opportunities, wherein each opportunity is identified by a frequency range and a time duration; determining whether signals are present in said identified frequency range, wherein if the signals are present, then analyzing said signals and determining the characteristics of said signals; if the signals are not present in said identified frequency range, then transmitting desired signals using fixed operating conditions; wherein if the signals are present in said identified frequency range, then determining a set of altered transmission characteristics based on the determined signal characteristics to allow for transmission of a desired signal in said identified frequency range, wherein said altered transmission characteristics avoid interference with signals expected in said frequency range; and transmitting said desired signal over the multiple spectrum opportunities simultaneously using said altered transmission characteristics when said transmission occurs during said time duration; wherein said determining multiple spectrum opportunities comprises; determining a location of a receiving device; obtaining location and transmission characteristics for known transmitters from at least one database; and determining an estimated received signal characteristics based on the location and transmission characteristics of said transmitters and a location of said receiving device. - View Dependent Claims (2, 3, 4, 5)
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6. A device for effectively utilizing frequency spectrum resources, comprising:
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a memory; a receiving unit for receiving signals and providing received signal characteristics to a processor; said processor, in communication with said memory, executing code for; receiving information items regarding multiple spectrum opportunities, wherein each opportunity is identified by a frequency range and a time duration; determining whether signals are present in said identified frequency range, wherein if the signals are present, then analyzing said signals and determining the characteristics of said signals; if the signals are not present in said identified frequency range, then transmitting desired signals using fixed operating conditions; wherein if the signals are present in said identified frequency range, then determining a set of altered transmission characteristics based on the determined signal characteristics to allow for transmission of a desired signal in said identified frequency range, wherein said altered transmission characteristics avoid interference with signals expected in said frequency range; enabling transmission of said desired signal over the multiple spectrum opportunities simultaneously using said altered transmission characteristics when transmission of said desired signal occurs during said time duration; and determining said multiple spectrum opportunities information items based on location and transmitting characteristics of known transmitting signals stored in a database and a location of said device. - View Dependent Claims (7, 8, 9, 10)
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11. A wireless communication system, comprising:
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a receiving unit for receiving information items regarding at least one receivable signal; a processing unit for determining multiple spectrum opportunities, wherein each opportunity is identified by a frequency range and a time duration, and for determining whether signals are present in said identified frequency range, wherein if the signals are present, then analyzing said signals and determining the characteristics of said signals; a managing unit for altering, if the signals are present in said identified frequency range, transmission characteristics of a desired signal based on said at least one spectrum opportunity and said determined received signal characteristics, wherein said altered transmission characteristics avoid interference with said received signals; and a transmission unit receiving said altered transmission characteristics to transmit said desired signal over the multiple spectrum opportunities simultaneously using said altered transmission characteristics, and if no signals are present in said identified frequency range said transmission unit is arranged to send desired signals using fixed operating conditions, wherein said receiving unit includes a processor for receiving information associated with location and transmission characteristics of known transmitting signals and said information items are determined from said location and transmission characteristics of said known transmitting signals. - View Dependent Claims (12, 13, 14)
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Specification