Title:
WIRELESS POWER TRANSMISSION APPARATUS, WIRELESS POWER RECEPTION APPARATUS, AND COMMUNICATION METHOD THEREBY
Document Type and Number:
WIPO Patent Application WO/2021/182817
Kind Code:
A2
Abstract:
A wireless power reception apparatus according to an embodiment of the present specification comprises: a power pickup circuit for receiving wireless power from a wireless power transmission apparatus via magnetic coupling with the wireless power transmission apparatus at an operating frequency; and a communication/control circuit for controlling reception of the wireless power while communicating with the wireless power transmission apparatus by using at least one of in-band communication using the operating frequency and out-band communication using a frequency other than the operating frequency, wherein the communication/control circuit transmits a request message to the wireless power transmission apparatus during an out-band channel establishment process for the out-band communication, and transmits an error message to the wireless power transmission apparatus, on the basis of a response message regarding the request message being not received from the wireless power transmission apparatus with a certain period of time.
Inventors:
LIM JINKWON (KR)
CHOI JINGU (KR)
LEE MINSOO (KR)
CHOI JINGU (KR)
LEE MINSOO (KR)
Application Number:
PCT/KR2021/002824
Publication Date:
September 16, 2021
Filing Date:
March 08, 2021
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H02J50/80
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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