SYSTEM AND METHOD FOR ADAPTIVE INTERFERENCE MITIGATION IN WIRELESS SENSOR NETWORK
First Claim
1. A system comprising:
- at least two wireless sensor devices positioned to monitor a physiological data of a patient;
a gateway device in communication with the at least two wireless sensor devices, the at least two wireless sensor devices and the gateway device forming a wireless body area network;
the gateway device configured to provide time synchronization signals to the at least two wireless sensor devices, the time synchronization signals adhering to a dual-frequency adaptive protocol;
the time synchronization signals including a communication frame structure having a plurality of time slots including two beacon signal time slots and a plurality of data slots;
each of the at least two wireless sensor devices configured to transmit respective patient data a first time interleaved within a same first one of the plurality of data slots; and
each of the at least two wireless sensor devices configured to transmit respective patient data a second time interleaved within a same second one of the plurality of data slots.
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Accused Products
Abstract
A system includes wireless sensor devices monitoring a patient, a gateway device providing dual-frequency adaptive protocol time synchronization signals to the sensor devices, the time synchronization signals including a communication frame structure having time slots including two beacon signal time slots and a plurality of data slots, where the sensor devices transmit respective patient data a first time interleaved within a first data slot and a second time interleaved within a second data slot, the first interleaved data transmission and the second interleaved data transmission are each transmitted at respective different frequencies provided to the sensor devices in beacon signals received from the gateway device. The first interleaved data transmission includes both current data and previous data from the at least two wireless sensor devices, and a frequency agility pattern separates adjacent channels by a respective predetermined frequency offset. A method and non-transitory medium are disclosed.
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Citations
20 Claims
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1. A system comprising:
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at least two wireless sensor devices positioned to monitor a physiological data of a patient; a gateway device in communication with the at least two wireless sensor devices, the at least two wireless sensor devices and the gateway device forming a wireless body area network; the gateway device configured to provide time synchronization signals to the at least two wireless sensor devices, the time synchronization signals adhering to a dual-frequency adaptive protocol; the time synchronization signals including a communication frame structure having a plurality of time slots including two beacon signal time slots and a plurality of data slots; each of the at least two wireless sensor devices configured to transmit respective patient data a first time interleaved within a same first one of the plurality of data slots; and each of the at least two wireless sensor devices configured to transmit respective patient data a second time interleaved within a same second one of the plurality of data slots. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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providing at least two wireless sensor devices positioned to monitor a physiological data of a patient, and a gateway device in communication with the at least two wireless sensor devices, the at least two wireless sensor devices and the gateway device forming a wireless body area network; the gateway device providing time synchronization signals to the at least two wireless sensor devices, the time synchronization signals adhering to a dual-frequency adaptive protocol including a communication frame structure having two beacon signal time slots and a plurality of data slots; transmitting respective patient data from the at least two wireless sensor devices a first time interleaved within a same first one of the plurality of data slots and then transmitting respective patient data a second time interleaved within a same second one of the plurality of data slots; the gateway device determining a frequency agility pattern for subsequent data transmission by comparing a number of lost packets of a channel with a predetermined threshold; and initiating a transmission frequency change for the channels where the predetermined threshold is exceeded. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A non-transitory computer readable medium having stored thereon instructions which when executed by a processor cause the processor to perform a method comprising:
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providing at least two wireless sensor devices positioned to monitor a physiological data of a patient, and a gateway device in communication with the at least two wireless sensor devices, the at least two wireless sensor devices and the gateway device forming a wireless body area network; providing time synchronization signals to the at least two wireless sensor devices, the time synchronization signals adhering to a dual-frequency adaptive protocol including a communication frame structure having two beacon signal time slots and a plurality of data slots; transmitting respective patient data from the at least two wireless sensor devices a first time interleaved within a same first one of the plurality of data slots and then transmitting respective patient data a second time interleaved within a same second one of the plurality of data slots; determining a frequency agility pattern for subsequent data transmission by comparing a number of lost packets of a channel with a predetermined threshold; and initiating a transmission frequency change for the channels where the predetermined threshold is exceeded. - View Dependent Claims (18, 19, 20)
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Specification