Channel assessment and selection for wireless communication between medical devices
First Claim
1. A medical device comprising:
- an antenna; and
a channel selection module that selects a channel on which to transmit communications via the antenna, wherein the channel selection module;
obtains measured ambient power levels on a plurality of channels of a frequency band regulation,based on the measured ambient power levels of the plurality of channels, selects a subset of N channels from the plurality of channels that have the N lowest measured ambient power levels, wherein the subset of channels comprises less than all of the plurality of channels,for each respective channel in the subset of channels, mathematically computes a channel assessment value as a function of the measured ambient power level of at least one channel of the plurality of channels other than the respective channel in the subset of channels for which the channel assessment value is being computed, andselects a channel from the subset of channels to transmit on based on at least the computed channel assessment values.
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Accused Products
Abstract
Channel assessment and selection for wireless communication is made between two or more medical devices, such as between an implantable medical device (IMD) and a non-implanted medical device, between two IMDs, or between two non-implanted medical devices. A telemetry module of a medical device operating in accordance with the techniques of this disclosure obtains measured ambient power levels on a plurality of channels of a frequency band regulation, such as the ten channels of the MICS band regulation. The telemetry module computes channel assessment values for at least a portion of the plurality of channels based on the measured ambient power levels on at least one other channel of the plurality of channels and selects a channel to transmit on based on the channel assessment values.
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Citations
16 Claims
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1. A medical device comprising:
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an antenna; and a channel selection module that selects a channel on which to transmit communications via the antenna, wherein the channel selection module; obtains measured ambient power levels on a plurality of channels of a frequency band regulation, based on the measured ambient power levels of the plurality of channels, selects a subset of N channels from the plurality of channels that have the N lowest measured ambient power levels, wherein the subset of channels comprises less than all of the plurality of channels, for each respective channel in the subset of channels, mathematically computes a channel assessment value as a function of the measured ambient power level of at least one channel of the plurality of channels other than the respective channel in the subset of channels for which the channel assessment value is being computed, and selects a channel from the subset of channels to transmit on based on at least the computed channel assessment values. - 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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means for obtaining measured ambient power levels on a plurality of channels of a frequency band regulation; based on the measured ambient power levels of the plurality of channels, means for selecting a subset of N channels from the plurality of channels that have the N lowest measured ambient power levels, wherein the subset of channels comprises less than all of the plurality of channels; means for mathematically computing for each respective channel in the subset of channels a channel assessment value as a function of the measured ambient power level of at least one channel of the plurality of channels other than the respective channel in the subset of channels for which the channel assessment value is being computed; and means for selecting a channel from the subset of channels to transmit on based on the computed channel assessment values. - View Dependent Claims (12, 13, 14, 15)
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16. A medical device comprising:
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an antenna; and a channel selection module that selects a channel on which to transmit communications via the antenna, wherein the channel selection module obtains measured ambient power levels on a plurality of channels of a frequency band regulation, computes a channel assessment value for each of at least a portion of the plurality of channels, and selects the channel to transmit on from the at least a portion of the plurality of channels based on the computed channel assessment values, wherein the channel selection module computes each channel assessment value based on the measured ambient power level of a respective channel for which the channel assessment value is being computed and at least a first other channel immediately adjacent, in frequency, to the respective channel and a second other channel not immediately adjacent, in frequency, to the respective channel, associates weights with each of the at least first and second other channel, each of the weights associated with each of the channels decreases as a function of distance, in frequency, from the respective channel, multiplies the measured ambient power levels of the at least one other channel by the associated weights, and uses the weighted ambient power levels of the at least one other channel to obtain the channel assessment value of the respective channel.
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Specification