System and Method for Management of a Shared Frequency Band
First Claim
1. A method comprising:
- receiving radio frequency energy in a frequency band;
analyzing the radio frequency energy to classify devices determined to be operating in the frequency band based on the received radio frequency energy;
when a communication device using a frequency hopping communication protocol is detected based on said analyzing and is determined not to have an adaptive hop set capability, idling slots in a frequency hopping set where transmissions of data or acknowledgments by a non-frequency hopping wireless communication network would occur when the non-frequency hopping wireless communication network is determined to be operating in the frequency band based on said analyzing; and
when the communication device using a frequency hopping communication protocol has an adaptive hop set capability, removing frequency hops that occur in the frequency band of operation of the non-frequency hopping wireless communication network when the non-frequency hopping wireless communication network is determined to be operating in the frequency band based on said analyzing.
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Abstract
A system, method, software and related functions are provided for managing activity in a radio frequency band that is shared, both in frequency and time, by signals of multiple types. An example of such a frequency band is an unlicensed frequency band. Radio frequency energy in the frequency band is captured at one or more devices and/or locations in a region where activity in the frequency band is happening. Signals occurring in the frequency band are detected by sampling part or the entire frequency band for time intervals. Signal pulse energy in the band is detected and is used to classify signals according to signal type. Using knowledge of the types of signals occurring in the frequency band and other spectrum activity related statistics (referred to as spectrum intelligence), actions can be taken in a device or network of devices to avoid interfering with other signals, and in general to optimize simultaneous use of the frequency band with the other signals. The spectrum intelligence may be used to suggest actions to a device user or network administrator, or to automatically invoke actions in a device or network of devices to maintain desirable performance.
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Citations
17 Claims
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1. A method comprising:
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receiving radio frequency energy in a frequency band; analyzing the radio frequency energy to classify devices determined to be operating in the frequency band based on the received radio frequency energy; when a communication device using a frequency hopping communication protocol is detected based on said analyzing and is determined not to have an adaptive hop set capability, idling slots in a frequency hopping set where transmissions of data or acknowledgments by a non-frequency hopping wireless communication network would occur when the non-frequency hopping wireless communication network is determined to be operating in the frequency band based on said analyzing; and when the communication device using a frequency hopping communication protocol has an adaptive hop set capability, removing frequency hops that occur in the frequency band of operation of the non-frequency hopping wireless communication network when the non-frequency hopping wireless communication network is determined to be operating in the frequency band based on said analyzing.
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2. A method comprising:
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receiving radio frequency energy in a frequency band; analyzing the radio frequency energy to classify devices determined to be operating in the frequency band based on the received radio frequency energy; adjusting an amount of dynamic rate adaptation employed for one or more devices operating in the frequency band when a frequency hopping device is determined to be operating in the frequency band based on said analyzing. - View Dependent Claims (3, 4, 5)
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6. An apparatus comprising:
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a radio receiver configured to receive radio frequency energy in a frequency band; a spectrum analysis unit configured to analyze the radio frequency energy to classify devices determined to be operating in the frequency band based on the received radio frequency energy; and a controller coupled to the spectrum analysis unit and configured to generate a control to adjust an amount of dynamic rate adaptation employed for one or more devices operating in the frequency band when a frequency hopping device is determined to be operating in the frequency band based on the analysis by the spectrum analysis unit. - View Dependent Claims (7, 8, 9)
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10. A processor readable medium encoded with instructions that, when executed by a processor, cause the processor to:
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analyze data representing radio frequency energy received by a receiver device in a frequency band to classify devices determined to be operating in the frequency band based on the received radio frequency energy; and generate a control to adjust an amount of dynamic rate adaptation employed for one or more devices operating in the frequency band when a frequency hopping device is determined to be operating in the frequency band based on the analysis of the radio frequency energy. - View Dependent Claims (11, 12, 13)
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14. A method comprising:
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receiving radio frequency energy in a frequency band; analyzing the radio frequency energy to classify devices determined to be operating in the frequency band based on the received radio frequency energy; detecting one or more frequency hopping devices operating in the frequency band based on said analyzing; determining whether a detected frequency hopping device is operating with a relatively slow frequency hopping signal or a relatively fast frequency hopping signal; and based on said determining, controlling one or more parameters used by a wireless local area network access point device in the frequency band that is transmitting a relatively high quality of service data stream to a client device. - View Dependent Claims (15, 16, 17)
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Specification