Method for avoiding signal collision in wireless power transfer
First Claim
1. A wireless power transmitter, comprising:
- a power conversion unit configured to form a wireless power signal for power transmission; and
a power transmission control unit configured to;
control the power conversion unit to receive a first packet from a first wireless power receiver and a second packet from a second wireless power receiver,detect a collision between the first packet and the second packet in a same time slot, andcontrol the power conversion unit to receive at least one of the first packet from the first wireless power receiver and the second packet from the second wireless power receiver in at least one time slot when the collision is detected.
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Abstract
A wireless power transmitter is provided that includes a power conversion unit configured to form a wireless power signal for power transmission, and a power transmission control unit. The power transmission control unit is configured to control the power conversion unit to receive a first packet from a first wireless power receiver and a second packet from a second wireless power receiver in the same time slot, detect a collision between the first packet and the second packet, and control the power conversion unit to receive at least one of the first packet from the first wireless power receiver and the second packet from the second wireless power receiver in at least one time slot if the collision is detected at the same time slot.
27 Citations
12 Claims
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1. A wireless power transmitter, comprising:
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a power conversion unit configured to form a wireless power signal for power transmission; and a power transmission control unit configured to; control the power conversion unit to receive a first packet from a first wireless power receiver and a second packet from a second wireless power receiver, detect a collision between the first packet and the second packet in a same time slot, and control the power conversion unit to receive at least one of the first packet from the first wireless power receiver and the second packet from the second wireless power receiver in at least one time slot when the collision is detected. - View Dependent Claims (2, 3, 4, 11)
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5. A first wireless power receiver, comprising:
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a power receiving unit configured to receive a wireless power signal from a wireless power transmitter; and a power reception control unit configured to; control the power receiving unit to send a first packet to the wireless power transmitter, and control the power receiving unit to resend the first packet to the wireless power transmitter in at least one time slot when a collision between the first packet from the power receiving unit and a second packet from a second wireless power receiver is detected in a same time slot at the wireless power transmitter. - View Dependent Claims (9, 10, 12)
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6. A signal collision avoiding method performed by a wireless power transmitter, the method comprising:
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receiving a first packet from a first wireless power receiver and a second packet from a second wireless power receiver; detecting a collision between the first packet and the second packet in a same time slot; and receiving at least one of the first packet from the first wireless power receiver and the second packet from the second wireless power receiver in at least one time slot when the collision is detected. - View Dependent Claims (7, 8)
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Specification