TECHNIQUES FOR FACILITATING BEACON SAMPLING EFFICIENCIES IN WIRELESS POWER DELIVERY ENVIRONMENTS
First Claim
1. A wireless power transmission system, comprising:
- an adaptively-phased antenna array having multiple radio frequency (RF) transceivers;
control circuitry operatively coupled to the multiple transceivers, the control circuitry configured to;
determine a movement status of a wireless power receiver client located within a wireless power delivery environment; and
when the movement status of the wireless power receiver client is static or semi-static, identify previously computed inverse directionality of a beacon signal received from the wireless power receiver client.
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Accused Products
Abstract
In retrodirective wireless power delivery environments wireless power receivers generate and send beacon signals that are received by multiple antennas of a wireless power transmission system. The beacon signals provide the charger with timing information for wireless power transfers and also indicate directionality of the incoming signal. As discussed herein, the directionality information is employed when transmitting in order to focus energy (e.g., power wave delivery) on individual wireless power receiver clients. Techniques are described herein for reducing the burden of sampling the beacon signals across the multiple antennas and determining the directionality of the incoming wave. In some embodiments, the techniques leverage previously calculated values to simplify the receiver sampling.
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Citations
20 Claims
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1. A wireless power transmission system, comprising:
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an adaptively-phased antenna array having multiple radio frequency (RF) transceivers; control circuitry operatively coupled to the multiple transceivers, the control circuitry configured to; determine a movement status of a wireless power receiver client located within a wireless power delivery environment; and when the movement status of the wireless power receiver client is static or semi-static, identify previously computed inverse directionality of a beacon signal received from the wireless power receiver client. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 16, 17, 18, 19)
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9. A method operating a wireless power transmission system to reduce computational requirements for sampling beacon signals received from wireless power receiver clients in a wireless power delivery environment, the method comprising:
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determining a movement status mode of a wireless power receiver client in the wireless power delivery environment; and when the wireless power receiver client is in a static or semi-static movement status mode, identifying a previously computed inverse directionality of a beacon signal received from the wireless power receiver client; and transmitting wireless power to the wireless power receiver client in a direction of the inverse directionality. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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20. An apparatus comprising:
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one or more computer readable storage media; and program instructions stored on the one or more computer readable storage media, wherein the program instruction, when executed by a processing system, direct the processing system to; determine a movement status of a wireless power receiver client located within a wireless power delivery environment; and when the movement status of the wireless power receiver client is static or semi-static, identify previously computed inverse directionality of a beacon signal received from the wireless power receiver client.
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Specification