Charging method of multi-node wireless charging system using magnetic field communication
First Claim
1. A multi-node wireless charging method using magnetic field communication for enabling a wireless power transmission apparatus to charge wireless charging devices using magnetic field communication in a multi-node wireless power transmission system including the wireless power transmission apparatus and the plurality of wireless charging devices spaced apart from the wireless power transmission apparatus, the method comprising:
- transmitting an association request frame;
receiving an association response frame from the wireless charging devices;
transmitting a charging requirement request frame;
receiving a charging requirement response frame from the wireless charging devices;
transmitting a charging preparation request frame; and
transmitting power during a receiving period of the charging preparation response frame for the charging preparation request frame.
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Accused Products
Abstract
Disclosed is a charging method of a multi-node wireless charging system using magnetic field communication capable of effectively charging a plurality of nodes using the magnetic field communication. The magnetic field communication protocol for wireless charging is prepared and thus, an appropriate wireless charging device may be selected and charged for an appropriate time. The wireless charging method of the present invention includes: transmitting an association request frame; receiving an association response frame from the wireless charging devices; transmitting a charging requirement request frame; receiving a charging requirement response frame from the wireless charging devices; transmitting a charging preparation request frame; and transmitting power during a receiving period of the charging preparation response frame for the charging preparation request frame.
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Citations
13 Claims
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1. A multi-node wireless charging method using magnetic field communication for enabling a wireless power transmission apparatus to charge wireless charging devices using magnetic field communication in a multi-node wireless power transmission system including the wireless power transmission apparatus and the plurality of wireless charging devices spaced apart from the wireless power transmission apparatus, the method comprising:
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transmitting an association request frame; receiving an association response frame from the wireless charging devices; transmitting a charging requirement request frame; receiving a charging requirement response frame from the wireless charging devices; transmitting a charging preparation request frame; and transmitting power during a receiving period of the charging preparation response frame for the charging preparation request frame. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A multi-node wireless charging method using magnetic field communication for enabling a wireless charging device to receive wireless power using magnetic field communication in a multi-node wireless power transmission system including the wireless power transmission apparatus and the plurality of wireless charging devices spaced apart from the wireless power transmission apparatus, the method comprising:
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receiving an association request frame from the wireless power transmission apparatus; transmitting an association response frame; receiving a charging requirement request frame from the wireless power transmission apparatus; transmitting a charging requirement response frame; receiving a charging preparation request frame from the wireless power transmission apparatus; and receiving power from the wireless power transmission apparatus during a receiving period of the charging preparation response frame for the charging preparation request frame. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification