Wireless power transfer method, apparatus and system
AssigneeLG Electronics Inc.
InventorYongcheol PARK
Life of this patent
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Abstract
A communication method of a wireless power receiver performing communication with a wireless power transmitter, includes transmitting control information to the wireless power transmitter at a time slot in a first cycle; receiving an ACK signal from the wireless power transmitter when the control information is transmitted without collision at the time slot in the first cycle; determining a position of the time slot from among a plurality of time slots within the first cycle in response to the received ACK signal; receiving, in a second cycle, a sync pattern which indicates that the time slot is allocated to the wireless power receiver; and performing communication with the wireless power transmitter using the allocated time slot in the second cycle.
Claims20
A communication method of a wireless power receiver performing communication with a wireless power transmitter, the communication method comprising:
- transmitting control information to the wireless power transmitter at a time slot in a first cycle;
- receiving an ACK signal from the wireless power transmitter when the control information is transmitted without collision at the time slot in the first cycle;
- determining a position of the time slot from among a plurality of time slots within the first cycle in response to the received ACK signal;
- receiving, in a second cycle, a sync pattern which indicates that the time slot is allocated to the wireless power receiver;
- and
- performing communication with the wireless power transmitter using the allocated time slot in the second cycle.
A wireless power receiver performing communication with a wireless power transmitter, the wireless power receiver comprising:
- a power reception unit configured to receive wireless power from the wireless power transmitter;
- and
- a power reception control unit configured to perform communication with the wireless power transmitter using the wireless power,
- wherein the power reception control unit performs the steps comprising:
- transmitting control information to the wireless power transmitter at a time slot in a first cycle;
- receiving an ACK signal from the wireless power transmitter when the control information is transmitted without collision at the time slot in the first cycle;
- determining a position of the time slot from among a plurality of time slots within the first cycle in response to the received ACK signal;
- receiving, in a second cycle, a sync pattern which indicates that the time slot is allocated to the wireless power receiver;
- and
- performing communication with the wireless power transmitter using the allocated time slot in the second cycle.
A communication method of a wireless power transmitter performing communication with a wireless power receiver, the communication method comprising:
- receiving control information from the wireless power receiver at a time slot in a first cycle;
- transmitting an ACK signal to the wireless power receiver when the control information is received without collision at the time slot in the first cycle;
- allocating the time slot to the wireless power receiver to perform communication with the wireless power receiver;
- transmitting, in a second cycle, a sync pattern which indicates that the time slot is allocated to the wireless power receiver;
- and
- performing communication with the wireless power receiver using the allocated time slot in the second cycle.
A wireless power transmitter performing communication with a wireless power receiver, the wireless power transmitter comprising:
- a power conversion unit configured to receive wireless power from the wireless power receiver;
- and
- a power transmission control unit configured to perform communication with the wireless power receiver using the wireless power,
- wherein the power transmission control unit performs the steps comprising:
- receiving control information from the wireless power receiver at a time slot in a first cycle;
- transmitting an ACK signal to the wireless power receiver when the control information is received without collision at the time slot in the first cycle;
- allocating the time slot to the wireless power receiver to perform communication with the wireless power receiver;
- transmitting, in a second cycle, a sync pattern which indicates that the time slot is allocated to the wireless power receiver;
- and
- performing communication with the wireless power receiver using the allocated time slot in the second cycle.
Dependencies are inferred from the claim text.