RF telemetry transmission between an active implantable medical device and a remote external receiver
First Claim
1. A method for transmission of information from an active implantable medical device to a remote external receiver by RF telemetry, comprising:
- prior to the transmission of information;
characterizing information to be transmitted according to one of a plurality of classes of information (TYPE 0, TYPE 1, . . . , TYPE n) and assigning to each said class of information a criticality index (IC) defining a relative priority between the different information classes to be transmitted;
defining of a plurality of possible transmission configurations (0, 1, . . . , n), each transmission configuration being defined by a characteristic comprising at least one of a modulation scheme, a setting of the modulation scheme and a data rate;
characterizing said transmission configurations thus defined by assigning to each transmission configuration a reliability index that is inversely related to a probability of failure of transmission in a noisy environment, the reliability index assigned to each transmission based on the characteristic without utilizing quality metrics measured during prior transmissions using the transmission configurations;
providing an ordered connection of said criticality indexes with the transmission configurations, the criticality indexes of the highest priorities being allocated to transmission configurations with higher reliability indexes, and vice versa, providing the ordered connection comprising;
assigning a first criticality index to a first transmission configuration comprising a first data rate; and
assigning a second criticality index having a lower priority than the first criticality index to a second transmission configuration comprising a second data rate higher than the first data rate; and
by the active implantable device, in response to a request for information to be transmitted;
prior to beginning transmission of the information, selecting a transmission configuration according to the criticality index characterizing the requested information to be transmitted, andtransmitting a message containing the requested information to be transmitted with the selected transmission configuration.
1 Assignment
0 Petitions
Accused Products
Abstract
Optimized RF telemetry transmission between an active implantable medical device and a remote external receiver in which the information to be transmitted are grouped by class (TYPE 0, TYPE 1, . . . , TYPE n) according to a criticality index (IC) defining a priority rank as between the different information classes to be transmitted. A plurality of modulation schemes and of data rates characterize different transmission configurations, each with a reliability index inversely related to the probability of failure of transmission in a noisy environment. The criticality indexes of the highest priorities are assigned to the transmission configurations with the higher reliability indexes. On an information transmission request, an RF telemetry transmission configuration is selected (52-62) depending on the criticality index characterizing the information to be transmitted. The transmission is operated (64, 66) with the transmission configuration thus selected.
9 Citations
20 Claims
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1. A method for transmission of information from an active implantable medical device to a remote external receiver by RF telemetry, comprising:
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prior to the transmission of information; characterizing information to be transmitted according to one of a plurality of classes of information (TYPE 0, TYPE 1, . . . , TYPE n) and assigning to each said class of information a criticality index (IC) defining a relative priority between the different information classes to be transmitted; defining of a plurality of possible transmission configurations (0, 1, . . . , n), each transmission configuration being defined by a characteristic comprising at least one of a modulation scheme, a setting of the modulation scheme and a data rate; characterizing said transmission configurations thus defined by assigning to each transmission configuration a reliability index that is inversely related to a probability of failure of transmission in a noisy environment, the reliability index assigned to each transmission based on the characteristic without utilizing quality metrics measured during prior transmissions using the transmission configurations; providing an ordered connection of said criticality indexes with the transmission configurations, the criticality indexes of the highest priorities being allocated to transmission configurations with higher reliability indexes, and vice versa, providing the ordered connection comprising; assigning a first criticality index to a first transmission configuration comprising a first data rate; and assigning a second criticality index having a lower priority than the first criticality index to a second transmission configuration comprising a second data rate higher than the first data rate; and by the active implantable device, in response to a request for information to be transmitted; prior to beginning transmission of the information, selecting a transmission configuration according to the criticality index characterizing the requested information to be transmitted, and transmitting a message containing the requested information to be transmitted with the selected transmission configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for transmission of information from an active implantable medical device to a remote external receiver by RF telemetry, the system comprising:
at least one processor coupled to an electrode, wherein the at least one processor is configured to; prior to the transmission of information; characterize information to be transmitted according to one of a plurality of classes of information (TYPE 0, TYPE 1, . . . , TYPE n) and assigning to each said class of information a criticality index (IC) defining a relative priority between the different information classes to be transmitted; define a plurality of possible transmission configurations (0, 1, . . . , n), each transmission configuration being defined by a characteristic comprising at least one of a modulation scheme, a setting of the modulation scheme and a data rate; characterize said transmission configurations thus defined by assigning to each transmission configuration a reliability index that is inversely related to a probability of failure of transmission in a noisy environment, the reliability index assigned to each transmission based on the characteristic without utilizing quality metrics measured during prior transmissions using the transmission configurations; provide an ordered connection of said criticality indexes with the transmission configurations, the criticality indexes of the highest priorities being allocated to transmission configurations with higher reliability indexes, and vice versa, providing the ordered connection comprising; assigning a first criticality index to a first transmission configuration comprising a first data rate; and assigning a second criticality index having a lower priority than the first criticality index to a second transmission configuration comprising a second data rate higher than the first data rate; and in response to a request for information to be transmitted; prior to beginning transmission of the information, select a transmission configuration according to the criticality index characterizing the requested information to be transmitted prior to a first transmission, and transmit a message containing the requested information to be transmitted with the selected transmission configuration. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. One or more non-transitory computer-readable storage media having instructions stored thereon that, when executed by a processor of an active implantable medical device, cause the processor to implement operations including:
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prior to the transmission of information; characterizing information to be transmitted according to one of a plurality of classes of information (TYPE 0, TYPE 1, . . . , TYPE n) and assigning to each said class of information a criticality index (IC) defining a relative priority between the different information classes to be transmitted; defining of a plurality of possible transmission configurations (0, 1, . . . , n), each transmission configuration being defined by a characteristic comprising at least one of a modulation scheme, a setting of the modulation scheme and a data rate; characterizing said transmission configurations thus defined by assigning to each transmission configuration a reliability index that is inversely related to a probability of failure of transmission in a noisy environment, the reliability index assigned to each transmission based on the characteristic without utilizing quality metrics measured during prior transmissions using the transmission configurations; providing an ordered connection of said criticality indexes with the transmission configurations, the criticality indexes of the highest priorities being allocated to transmission configurations with higher reliability indexes, and vice versa, providing the ordered connection comprising; assigning a first criticality index to a first transmission configuration comprising a first data rate; and assigning a second criticality index having a lower priority than the first criticality index to a second transmission configuration comprising a second data rate higher than the first data rate; and in response to a request for information to be transmitted; prior to beginning transmission of the information, selecting a transmission configuration according to the criticality index characterizing the requested information to be transmitted prior to a first transmission, and transmitting a message containing the requested information to be transmitted with the selected transmission configuration. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification