Approach for managing the use of communications channels based on performance
地域：
TX
TX Austin
摘要
An approach for selecting sets of communications channels involves determining the performance of communications channels. A set of channels is selected based on the results of performance testing and specified criteria. The participant generates data that identifies the selected set of channels and provides that data to other participants of the communications network. The participants communicate over the set of channels, such as by using a frequency hopping protocol. When a specified time expires or monitoring of the performance of the channel set identifies poor performance of the set of channels, the participant selects another set of channels for use in communications based on additional performance testing. By selecting channels based on the initial performance testing and performance monitoring, the communications network adaptively avoids channels with poor performance.
說(shuō)明書
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權(quán)利要求
The invention claimed is:1. A wireless communications device adapted to manage a power level required to achieve a specified level of transmission quality, wherein being adapted to manage the power level required to achieve the specified level of transmission quality includes being configured to:determine a subset of communications channels available to be used for frequency hopping communications of a set of communications channels in a frequency band, wherein being configured to determine the subset of communications channels includes being configured to exclude each channel of the set of communications channels exhibiting an assessed level of channel performance outside of a target threshold level of channel performance; send packet data including information defining the subset of communications channels to another wireless communications device in a wireless communications network; and use at least one of the communications channels of the subset of communications channels as one of a plurality of communication channels for frequency hopping communications with the other wireless communications device. 2. The wireless communications device of claim 1 , wherein being adapted to manage the power level required to achieve the specified level of transmission quality includes being further configured to:monitor said channel performance between the wireless communications device and the other wireless communications device; determine when said channel performance indicates that one or more of said communication channels providing frequency hopping communications exceeds a specified level of interference; cause a new instance of the subset of communications channels to be determined; send packet data including information defining the new instance of the subset of communications channels to the other wireless communications device in the wireless communications network; and use at least one of the communications channels of the new instance of the subset of communications channels as one of a plurality of communication channels for frequency hopping communications with the other wireless communications device. 3. The wireless communications device of claim 2 , wherein the specified level of interference is at least partially defined by a power level required to achieve a specified transmission quality. 4. The wireless communications device of claim 1 , wherein the packet data further includes timing information indicating when to begin using the subset of communications channels of the packet for frequency hopping communications. 5. The wireless communications device of claim 4 , wherein the timing information indicates a number of time slots to wait before beginning to use the subset of communications channels for frequency hopping communications. 6. The wireless communications device of claim 1 , wherein the wireless communications device is further configured to:load channel indices of the subset of communications channels into a register of the wireless communications device; and apply an index to a channel index of an identified communications channel of the subset of communications channels to identify, from the register, a channel index of a communications channel to use for frequency hopping communications with the other wireless communications device at the time slot, if the identified communications channels is not used for frequency hopping communications. 7. The wireless communications device of claim 1 , wherein the wireless communications device being configured to use the at least one of the communications channels of the subset of communications channels for frequency hopping communications with the other wireless communications device comprises the wireless communications device being configured to use the identified communications channel for frequency hopping communications with the other wireless communications device at a time slot at or after the wireless communications device and the other wireless communications device begin using the subset of communications channels for frequency hopping communications. 8. A wireless communications device adapted to manage a power level required to achieve a specified level of transmission quality, wherein being adapted to manage the power level required to achieve the specified level of transmission quality includes being configured to:receive a packet from another wireless communications device in a wireless communications network, wherein the packet includes information identifying the communications channels of a subset of communications channels available to be used for frequency hopping communications of a set of communications channels in a frequency band, wherein the subset of communications channels excludes each channel of the set of communications channels exhibiting an assessed level of channel performance outside of a target threshold level of the channel performance; identify a communications channel from the subset of communication channels; and use the identified communications channel as one of a plurality of communication channels for frequency hopping communications with the other wireless communications device. 9. The wireless communications device of claim 8 , wherein each packet further comprises a time value indicating when to begin using the subset of communications channels for frequency hopping communications. 10. The wireless communications device of claim 9 , wherein the time value indicates a number of time slots to wait before beginning to use the subset of communications channels for frequency hopping communications. 11. The wireless communications device of claim 8 , wherein being adapted to manage the power level comprises the wireless communications device being configured to:load channel indices of the subset of communications channels into a register of the wireless communications device; and apply an index to a channel index of an identified communications channel of the subset of communications channels to identify, from the register, a channel index of a communications channel to use for frequency hopping communications with the other wireless communications device at the time slot, if the identified communications channels is not used for frequency hopping communications. 12. The wireless communications device of claim 8 , wherein the wireless communications device being configured to use the at least one of the communications channels of the subset of communications channels for frequency hopping communications with the other wireless communications device comprises the wireless communications device being configured to use the identified communications channel for frequency hopping communications with the other wireless communications device at a time slot at or after the wireless communications device and the other wireless communications device begin using the subset of communications channels for frequency hopping communications. 13. The wireless communications device of claim 12 , wherein each packet further comprises a time value indicating when to begin using the subset of communications channels for frequency hopping communications. 14. The wireless communications device of claim 13 , wherein the time value indicates a number of time slots to wait before beginning to use the subset of communications channels for frequency hopping communications. 15. The wireless communications device of claim 12 , wherein being adapted to manage the power level comprises the wireless communications device being configured to:load channel indices of the subset of communications channels into a register of the wireless communications device; and apply an index to a channel index of an identified communications channel of the subset of communications channels to identify, from the register, a channel index of a communications channel to use for frequency hopping communications with the other wireless communications device at the time slot, if the identified communications channels is not used for frequency hopping communications. 16. A method of operating a wireless communication device to manage a power level required to achieve a specified level of transmission quality thereof, comprising:a first wireless communications device determining a subset of communications channels available to be used for frequency hopping communications of a set of communications channels in a frequency band, wherein the subset of communications channels excludes each channel of the set of communications channels exhibiting an assessed level of channel performance outside of a target threshold level of the channel performance; the first wireless communications device sending, to a second wireless communications device in a wireless communications network, a packet comprising information defining the communications channel in the subset of communications channels to be used for frequency hopping communications between the first and second wireless communications devices; the first wireless communications device identifying a communications channel from the subset of communication channels; and the first wireless communications device using the identified communications channels of the subset of communications channels as one of a plurality of communication channels for frequency hopping communications with the other wireless communications device at a time slot at or after the wireless communications device and the other wireless communications device begin using the subset of communications channels for frequency hopping communications. 17. The method of claim 16 , wherein each packet further comprises a time value indicating when to begin using the subset of communications channels for frequency hopping communications. 18. The method of claim 17 , wherein the time value indicates a number of time slots to wait before beginning to use the subset of communications channels for frequency hopping communications. 19. The method of claim 16 , further comprising:the first wireless communications device loading channel indices of the subset of communications channels into a register of the first wireless communications device; and the first wireless communications device applying an index to a channel index of the identified communications channel of the subset of communications channels to identify, from the register, a channel index of a communications channel to use for frequency hopping communications with the second wireless communications device at the time slot, if the identified communications channels is not used for frequency hopping communications. 20. The method of claim 16 , further comprising:the first wireless communications device classifying each communications channel in the subset of communications channels as a function of the assessed level of channel performance; wherein a communication channel is classified as not promoting interference when the assessed level of channel performance is within the target threshold level of the channel performance; and wherein a communication channel is classified as promoting interference when the assessed level of channel performance is outside the target threshold level of the channel performance.
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