Power efficient communications
First Claim
Patent Images
1. A wireless system, comprising:
- an energy harvesting electrical power source, capable of producing an available output power for an indefinite period of time and having a defined peak power characteristic; and
a power efficient receiver configured in operation to enable a ratio of peak-to-average power consumption of the available output power of the energy harvesting power source to be minimized and to enable energy consumption of the available output power of the energy harvesting power source to be maximized per unit time and capable of a data reception rate determined, at least in part, by the available output power;
a power efficient transmitter, configured in operation to enable a ratio of peak-to-average power consumption of the available output power of the energy harvesting power source to be minimized and to enable energy consumption of the available output power of the energy harvesting power source to be maximized per unit time and operable to transmit data at a data transmission rate to the receiver, wherein the data transmission rate is determined, at least in part, by the available output power,wherein a range between the transmitter and the receiver is estimated from the data reception rate of the receiver andwherein a received signal strength indication (RSSI) value is not needed to estimate the range.
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Abstract
A method, system, and device provide power-efficient communications within the context of available power. Transmission and receipt data rates are scalable in accordance with output power available from a power source. Data is transmitted at a data rate determined, at least in part, by the available output power.
301 Citations
15 Claims
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1. A wireless system, comprising:
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an energy harvesting electrical power source, capable of producing an available output power for an indefinite period of time and having a defined peak power characteristic; and a power efficient receiver configured in operation to enable a ratio of peak-to-average power consumption of the available output power of the energy harvesting power source to be minimized and to enable energy consumption of the available output power of the energy harvesting power source to be maximized per unit time and capable of a data reception rate determined, at least in part, by the available output power; a power efficient transmitter, configured in operation to enable a ratio of peak-to-average power consumption of the available output power of the energy harvesting power source to be minimized and to enable energy consumption of the available output power of the energy harvesting power source to be maximized per unit time and operable to transmit data at a data transmission rate to the receiver, wherein the data transmission rate is determined, at least in part, by the available output power, wherein a range between the transmitter and the receiver is estimated from the data reception rate of the receiver and wherein a received signal strength indication (RSSI) value is not needed to estimate the range.
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2. A wireless system, comprising:
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an energy harvesting electrical power source, capable of producing an available output power for an indefinite period of time and having a defined peak power characteristic; and a power efficient receiver configured in operation to enable a ratio of peak-to-average power consumption of the available output power of the energy harvesting power source to be minimized and to enable energy consumption of the available output power of the energy harvesting power source to be maximized per unit time and capable of a data reception rate determined, at least in part, by the available output power, wherein the ratio of peak-to-average power consumption of the output power available from the electrical power source by the receiver to receive the data is minimized in order to maximize a portion of the available output power usable to receive the data. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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10. A wireless system, comprising:
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an electrical power source, capable of producing an available output power; and a receiver capable of a data reception rate determined, at least in part, by the available output power, wherein a ratio of peak-to-average power consumption of the output power available from the electrical power source by the receiver to receive the data is minimized in order to maximize a portion of the available output power usable to receive the data and wherein minimization of the ratio of peak-to-average power consumed by the receiver occurs by reducing power used by the receiver to receive the data and wherein the receiver further comprises; a synthesizer; a controlled oscillator; and a sequencer operable to generate a plurality of enable signals that control operation of the synthesizer, the controlled oscillator, and a receiver signal path of the receiver, wherein the sequencer is operable to selectively control operation of the receiver to prevent simultaneous operation of the synthesizer and the receiver signal path during a receive period of the receiver. - View Dependent Claims (11)
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12. A wireless system, comprising:
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an electrical power source, capable of producing an available output power; and a receiver capable of a data reception rate determined, at least in part, by the available output power, wherein a ratio of peak-to-average power consumption of the output power available from the electrical power source by the receiver to receive the data is minimized in order to maximize a portion of the available output power usable to receive the data and wherein minimization of the ratio of peak-to-average power consumed by the receiver occurs by reducing power used by the receiver to receive the data and wherein the receiver is operable to reduce the power used by the receiver to receive the data by selective control of the operation of a microcomputer and the receiver to prevent simultaneous operation of the microcomputer and the receiver during a receive period of the receiver. - View Dependent Claims (13)
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14. A wireless system, comprising:
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an energy harvesting electrical power source, capable of producing an available output power for an indefinite period of time and having a defined peak power characteristic; and a power efficient receiver configured in operation to enable a ratio of peak-to-average power consumption of the available output power of the energy harvesting power source to be minimized and to enable energy consumption of the available output power of the energy harvesting power source to be maximized per unit time and capable of a data reception rate determined, at least in part, by the available output power, wherein the sensitivity of the receiver is determined by the available output power and wherein the sensitivity of the receiver is adjustable by adjustment of the power consumption of the receiver. - View Dependent Claims (15)
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Specification