Wireless power transfer method, apparatus and system
First Claim
1. A wireless power transmitter which performs communication with one or more wireless power receivers, the wireless power transmitter comprising:
- a power converter including at least one coil configured to convert current into magnetic field; and
a power transmission controller configured to communicate with a wireless power receiver based on a frame,wherein the frame includes a plurality of slots which have different slot numbers respectively,wherein the power transmission controller receives a first packet from the wireless power receiver in a first slot having a first slot number, and receives a second packet from wireless power receiver in a second slot having a second slot number, andwherein the second packet includes an information field indicating the first slot number.
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Accused Products
Abstract
A wireless power transmitter is provided which performs communication with a wireless power receiver through multiple slots. The wireless power transmitter comprises: a power converter consisting of at least one coil to convert a current into a magnetic field; and a power transmission controller that receives information associated with a power transfer phase from the wireless power receiver through at least one of the multiple slots, during the transfer of power to the wireless power receiver through the power converter, wherein the information associated with the power transfer phase contains a slot number assigned to the wireless power receiver.
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Citations
20 Claims
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1. A wireless power transmitter which performs communication with one or more wireless power receivers, the wireless power transmitter comprising:
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a power converter including at least one coil configured to convert current into magnetic field; and a power transmission controller configured to communicate with a wireless power receiver based on a frame, wherein the frame includes a plurality of slots which have different slot numbers respectively, wherein the power transmission controller receives a first packet from the wireless power receiver in a first slot having a first slot number, and receives a second packet from wireless power receiver in a second slot having a second slot number, and wherein the second packet includes an information field indicating the first slot number. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of controlling a wireless power transmitter performing communication with one or more wireless power receivers, the method comprising:
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transmitting power to a wireless power receiver in a wireless manner; and communicating with the wireless power receiver based on a frame, the frame including a plurality of slots which have different slot numbers respectively, wherein the communicating includes; receiving a first packet from the wireless power receiver in a first slot having a first slot number; and receiving a second packet from wireless power receiver in a second slot having a second slot number, the second packet including an information field indicating the first slot number. - View Dependent Claims (8, 9, 10, 11)
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12. A wireless power receiver which performs communication with a wireless power transmitter, the wireless power receiver comprising:
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a power receiving part comprising at least one coil to convert magnetic field into current; and a power reception controller that communicates with the wireless power transmitter based on a frame, the frame including a plurality of slots which have different slot numbers respectively, wherein the power reception controller transmits a first packet to the wireless power transmitter in a first slot having a first slot number, and transmits a second packet to the wireless power transmitter in a second slot having a second slot number, and wherein the second packet includes an information field indicating the first slot number. - View Dependent Claims (13, 15, 16, 17)
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14. A method of controlling a wireless power receiver performing communication with a wireless power transmitter, the method comprising:
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receiving power from the wireless power transmitter in a wireless manner; and communicating with the wireless power transmitter based on a frame, the frame including a plurality of slots which have different slot numbers respectively, wherein the communicating includes; transmitting a first packet to the wireless power transmitter in a first slot having a first slot number; and transmitting a second packet to the wireless power transmitter in a second slot having a second slot number, the second packet including an information field indicating the first slot number. - View Dependent Claims (18, 19, 20)
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Specification