Wireless power transmission network and wireless power transmission method
First Claim
1. A wireless power transmission method, performed by a controller in a base station in a wireless power transfer network which performs wireless power transmission, the wireless power transmission method comprising:
- recognizing at least one electronic device of a plurality of electronic devices based on a magnetic field signal;
transmitting a first packet including first time slot allocation information indicating a first time slot allocated to a first electronic device of the plurality of electronic devices by using a frame structure including a plurality of time slots;
receiving a second packet from the first electronic device during the first time slot of the plurality of time slots which is allocated to the first electronic device;
receiving a third packet from a second electronic device of the plurality of electronic devices during a second time slot of the plurality of time slots, wherein the second time slot is positioned after the first time slot in one frame, the second time slot is a time slot in which the plurality of electronic devices are allowed to transmit information freely, and the second time slot is a time slot which is not allocated to the second electronic device previously;
transmitting a fourth packet including second time slot allocation information by using the frame structure based on the third packet; and
transferring wireless power by using a magnetic field to the first electronic device and the second electronic device,wherein the second packet and the third packet include information on received power.
0 Assignments
0 Petitions
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.
-
Citations
12 Claims
-
1. A wireless power transmission method, performed by a controller in a base station in a wireless power transfer network which performs wireless power transmission, the wireless power transmission method comprising:
-
recognizing at least one electronic device of a plurality of electronic devices based on a magnetic field signal; transmitting a first packet including first time slot allocation information indicating a first time slot allocated to a first electronic device of the plurality of electronic devices by using a frame structure including a plurality of time slots; receiving a second packet from the first electronic device during the first time slot of the plurality of time slots which is allocated to the first electronic device; receiving a third packet from a second electronic device of the plurality of electronic devices during a second time slot of the plurality of time slots, wherein the second time slot is positioned after the first time slot in one frame, the second time slot is a time slot in which the plurality of electronic devices are allowed to transmit information freely, and the second time slot is a time slot which is not allocated to the second electronic device previously; transmitting a fourth packet including second time slot allocation information by using the frame structure based on the third packet; and transferring wireless power by using a magnetic field to the first electronic device and the second electronic device, wherein the second packet and the third packet include information on received power. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A base station in a wireless power transfer network which performs wireless power transmission, comprising:
-
a controller configured to recognize a plurality of electronic devices; and a antenna configured to transmit wireless power by using a magnetic field to an electronic device, wherein the controller is configured to transmit a first packet including first time slot allocation information indicating a first time slot allocated to a first electronic device of the plurality of electronic devices by using a frame structure including a plurality of time slots, to receive a second packet from the first electronic device during the first time slot of the plurality of time slots which is allocated to the first electronic device, to receive a third packet from a second electronic device of the plurality of electronic devices during a second time slot of the plurality of time slots, and to transmit a fourth packet including second time slot allocation information by using the frame structure based on the third packet, wherein the second packet and the third packet include information on received power, wherein the second time slot is positioned after the first time slot in one frame, wherein the second time slot is a time slot in which the plurality of electronic devices are allowed to transmit information freely, and wherein the second time slot is a time slot which is not allocated to the second electronic device previously. - View Dependent Claims (7, 8, 9, 10)
-
-
11. A wireless power reception method, performed by a controller in an electronic device in a wireless power transfer network which performs wireless power reception by using a magnetic field, the method comprising:
-
receiving, from a base station, a first packet including first time slot allocation information indicating a first time slot allocated to an another electronic device by using a frame structure including a plurality of time slots; transferring a second packet during a second time slot of the plurality of time slot, wherein the second time slot is positioned after the first time slot in one frame, the second time slot is a time slot in which a plurality of electronic devices are allowed to transmit information freely, and the second time slot is a time slot which is not allocated to the electronic device previously; receiving, from the base station, a third packet including second time slot allocation information by using the frame structure based on the second packet; and receiving wireless power by using the magnetic field from the base station, wherein the second packet includes information on received power. - View Dependent Claims (12)
-
Specification