METHOD AND SYSTEM OF RADIO FREQUENCY (RF) POWER TRANSMISSION IN A WIRELESS NETWORK
First Claim
1. A method of radio frequency (RF) power transmission in a wireless network including multiple wireless stations, the method comprising:
- generating control signals for switching a receiving wireless station between a power reception mode and a data reception mode;
switching the wireless station between power reception and data reception modes based on the control signals; and
providing a power inter-frame space interval for generating RF transmission for powering wireless stations in the wireless network.
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Abstract
A method and system of radio frequency (RF) power transmission among multiple wireless stations is provided. Control signals for switching a receiving station between a power reception mode and a data reception mode are generated. The control signals provide switching information about which of the modes to switch to, and timing of the switching. In the data reception mode, the receiving station processes an RF transmission from a sending station as a data communication. In the power reception mode the receiving station processes the RF transmission as energy radiation for powering the receiving station. One type of control signal for power mode switching is generated at the MAC layer of a receiving station and sent to the PHY layer of that station for power mode switching. Another type is RTS/CTS control signal exchanged between the sending and receiving stations.
11 Citations
31 Claims
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1. A method of radio frequency (RF) power transmission in a wireless network including multiple wireless stations, the method comprising:
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generating control signals for switching a receiving wireless station between a power reception mode and a data reception mode; switching the wireless station between power reception and data reception modes based on the control signals; and providing a power inter-frame space interval for generating RF transmission for powering wireless stations in the wireless network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for radio frequency (RF) power transmission in a wireless network including multiple wireless stations, comprising:
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a controller that operates in a receiving station to generate control signals for switching a receiving wireless station between a power reception mode and a data reception mode; wherein the controller comprises a media access control (MAC) layer that provides a power inter-frame space interval for generating RF transmission for powering wireless stations in the wireless network. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A wireless communication system for radio frequency (RF) power transmission, comprising:
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multiple wireless stations that form a wireless network; and a controller module in a receiving wireless station for RF power transmission, the controller module including; a controller function that generates control signals for switching the receiving wireless station between a power reception mode and a data reception mode; wherein the controller comprises a media access control (MAC) layer that provides a power inter-frame space interval for generating RF transmission for powering wireless stations in the wireless network. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An apparatus for receiving radio frequency (RF) power transmission in a wireless network including multiple wireless stations, comprising:
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a receiver that receives data, wherein the receiver generates control signals for switching between a power reception mode and a data reception mode; wherein the receiver comprises a media access control (MAC) layer that provides a power inter-frame space interval for generating RF transmission for powering wireless stations in the wireless network.
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30. A method for receiving radio frequency (RF) power transmission in a wireless network including multiple wireless stations, the method comprising:
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receiving an RF transmission; generating control signals for switching a receiving wireless station between a power reception mode and a data reception mode based on the received wireless transmission; and switching the wireless station between power reception and data reception modes based on the control signals, wherein a power inter-frame space interval is used for generating the RF transmission for powering wireless stations in the wireless network.
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31. A wireless node in a wireless network including multiple wireless stations, comprising:
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an interface that switches modes between a power reception circuit and a data reception circuit; wherein the interface comprises a media access control (MAC) layer that provides a power inter-frame space interval for generating RF transmission for powering wireless stations in the wireless network.
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Specification