WIRELESS POWER TRANSMISSION NETWORK AND WIRELESS POWER TRANSMISSION METHOD
First Claim
1. A wireless power transmission method, performed by a base station in a wireless power transfer network which performs wireless power transmission and in-band communication by using a magnetic field, and includes the base station supplying power and at least one electronic device receiving power, the wireless power transmission method comprising:
- transmitting a first magnetic field signal to the at least one electronic device;
receiving a second magnetic field signal including information regarding in which of a charging zone and a communication zone the at least one electronic device is included, from the at least one electronic device in response to the first magnetic field signal; and
supplying power to an electronic device included in the charging zone, among the at least one electronic device, by using the magnetic field.
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Accused Products
Abstract
The present invention relates to a wireless power transmission network and to a wireless power transmission method. In the wireless power transmission method according to one aspect of the present invention, a base station, which wirelessly transmits power using a magnetic field, performs in-band communication through the magnetic field used for wireless power transmission in order to determine whether an electronic device receiving power is in a charging area or in a communication area, and transmits wireless power accordingly.
262 Citations
26 Claims
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1. A wireless power transmission method, performed by a base station in a wireless power transfer network which performs wireless power transmission and in-band communication by using a magnetic field, and includes the base station supplying power and at least one electronic device receiving power, the wireless power transmission method comprising:
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transmitting a first magnetic field signal to the at least one electronic device; receiving a second magnetic field signal including information regarding in which of a charging zone and a communication zone the at least one electronic device is included, from the at least one electronic device in response to the first magnetic field signal; and supplying power to an electronic device included in the charging zone, among the at least one electronic device, by using the magnetic field. - View Dependent Claims (2, 3)
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4. A wireless power transmission method, performed by a particular electronic device in a wireless power transfer network which performs wireless power transmission and in-band communication by using a magnetic field and includes a base station supplying power and at least one electronic device receiving power, the wireless power transmission method comprising:
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receiving a first magnetic field signal from the base station; determining whether power transmission is available in consideration of characteristics of the first magnetic field signal; transmitting a second magnetic field signal including information reflecting whether power transmission is available; and receiving power by using a magnetic field from the base station when the power transmission is available. - View Dependent Claims (5)
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6. A wireless power transmission method, performed by a base station in a wireless power transfer network which performs wireless power transmission and in-band communication by using a magnetic field, and includes the base station supplying power and at least one electronic device receiving power, the wireless power transmission method comprising:
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transmitting a first magnetic field signal to the at least one electronic device; receiving a second magnetic field signal including information regarding whether power transmission is available from the at least electronic device, the information being determined on the basis of characteristics of the first magnetic field signal; and supplying power to an electronic device available for power transmission among the at least one electronic device. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A wireless power transmission method, performed by a base station in a wireless power transfer network which performs wireless power transmission by using a magnetic field and in-band communication using the magnetic field, and includes the base station supplying power and a plurality of electronic devices receiving power, the wireless power transmission method comprising:
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recognizing the plurality of electronic devices through the in-band communication; splitting a power transmission interval into a plurality of time slots by using the recognition result, and allocating at least one electronic device to each time slot; and transferring power by using a magnetic field to an electronic device allocated to a corresponding time slot in each of the plurality of time slots during the power transmission interval. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19-23. -23. (canceled)
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24. A wireless power transmission method, performed by a base station in a wireless power transfer network which performs wireless power transmission by using a magnetic field and in-band communication using the magnetic field, and includes the base station supplying power and a plurality of electronic devices receiving power, the wireless power transmission method comprising:
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determining priority levels of the plurality of electronic devices; performing scheduling of at least one time slot by splitting a power transmission interval on the basis of the priority levels; and supplying power to the plurality of electronic devices by using the magnetic field. - View Dependent Claims (25)
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26-37. -37. (canceled)
Specification