Channel selection and mapping for medical device communication
First Claim
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1. A method of communication between devices comprising:
- initiating a listen before talk (LBT) protocol between first and second devices including implementing a stage one analysis of each of a plurality of frequency channels over a stage one interval to determine a stage one level of interference associated with each channel, at least one of the first and second devices being a medical device and at least one of the first and second devices initiating the LBT protocol;
choosing one of the channels for a stage two analysis based on the amount of interference associated with each channel; and
implementing a stage two analysis over a stage two interval to determine a stage two level of interference associated with the one of the channels, the stage two interval being longer than the stage one interval.
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Abstract
Embodiments of the invention include channel selection and mapping for medical device communication. The communication system can implement a two-stage listen before talk protocol to choose a channel for communication. The first stage samples the interference of each channel for a relatively short time and chooses the best signal. The second stage samples the channel selected by the first stage and samples it for a relatively longer time to confirm the channel selected by the first stage is the best channel for communication.
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Citations
19 Claims
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1. A method of communication between devices comprising:
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initiating a listen before talk (LBT) protocol between first and second devices including implementing a stage one analysis of each of a plurality of frequency channels over a stage one interval to determine a stage one level of interference associated with each channel, at least one of the first and second devices being a medical device and at least one of the first and second devices initiating the LBT protocol; choosing one of the channels for a stage two analysis based on the amount of interference associated with each channel; and implementing a stage two analysis over a stage two interval to determine a stage two level of interference associated with the one of the channels, the stage two interval being longer than the stage one interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A medical device comprising:
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a RF antenna; a memory that includes instructions defining a listen before talk (LBT) protocol, the LBT protocol including a first stage analysis wherein more than one channel is sampled for interference for a first interval and the channel with the lowest interference is chosen, and a second stage analysis wherein the channel chosen by the first stage analysis is sampled for interference for a second interval, the second interval being longer than the first interval, the channel being selected for RF communication if the second stage interference level is less than the first stage interference level associated with the remainder of the channels; and a telemetry circuit functionally coupled to the RF antenna that executes the instructions to perform the LBT protocol. - View Dependent Claims (12, 13, 14, 15)
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16. A combination of a first device and a second device, comprising:
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a first device and a second device each having an RF antenna, at least one of the first device and second device being a medical device; and at least one of the first device and second device having a memory that includes instructions defining a listen before talk (LBT) protocol and a telemetry circuit functionally coupled to its RF antenna that executes the instructions to perform the LBT protocol, the LBT protocol including a first stage analysis wherein more than one channel is sampled for interference for a first interval and the channel with the lowest interference is chosen, and a second stage analysis wherein the channel chosen by the first stage analysis is sampled for interference for a second interval, the second interval being longer than the first interval. - View Dependent Claims (17, 18, 19)
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Specification