US 12,457,015 B2
Wireless charging method and electronic device supporting same
Jaesung Lee, Suwon-si (KR); Juhyang Lee, Suwon-si (KR); and Jaemu Ha, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on May 22, 2023, as Appl. No. 18/321,359.
Application 18/321,359 is a continuation of application No. PCT/KR2022/000016, filed on Jan. 3, 2022.
Claims priority of application No. 10-2021-0000546 (KR), filed on Jan. 4, 2021.
Prior Publication US 2023/0299813 A1, Sep. 21, 2023
Int. Cl. H04B 5/79 (2024.01); H02J 50/10 (2016.01); H04B 5/26 (2024.01)
CPC H04B 5/79 (2024.01) [H02J 50/10 (2016.02); H04B 5/266 (2024.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a first communication circuit configured to support first communication in a first frequency band;
a second communication circuit configured to support second communication in a second frequency band different from the first frequency band;
a power transfer coil; and
a control circuit electrically connected to the first communication circuit, the second communication circuit, and the power transfer coil, wherein the control circuit is configured to:
based on the first communication circuit, establish a first communication connection to an external electronic device,
based on the first communication using the power transfer coil, transfer power to the external electronic device,
based on the first communication, receive a first signal comprising a control error packet (CEP) from the external electronic device at a first time point,
after the first time point, count a first number of times that a designated unit of time without reception of the first signal has elapsed,
in case that the first number of times the designated unit of time elapses without reception of the first signal corresponds to a designated first threshold value,
based on the first communication, transmit, to the external electronic device, a second signal for requesting a second communication connection to the external electronic device,
based on reception of a third signal comprising a response of the external electronic device to the second signal,
establish the second communication connection to the external electronic device, and
based on the second communication, transmit or receive, to or from the external electronic device, at least one piece of data related to the power transfer.