US 12,289,599 B2
Wireless power transmission apparatus and wireless power reception apparatus for transferring and receiving wireless power
Minsoo Lee, Seoul (KR); Jingu Choi, Seoul (KR); Gyunghwan Yook, Seoul (KR); Seunghyun Yoo, Seoul (KR); and Yongcheol Park, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 18/025,161
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Sep. 8, 2020, PCT No. PCT/KR2020/012115
§ 371(c)(1), (2) Date Mar. 7, 2023,
PCT Pub. No. WO2022/054973, PCT Pub. Date Mar. 17, 2022.
Prior Publication US 2023/0319562 A1, Oct. 5, 2023
Int. Cl. H02J 50/80 (2016.01); H04B 5/70 (2024.01); H04W 12/069 (2021.01); H04W 12/50 (2021.01); H02J 50/12 (2016.01)
CPC H04W 12/069 (2021.01) [H02J 50/80 (2016.02); H04B 5/70 (2024.01); H04W 12/50 (2021.01); H02J 50/12 (2016.02)] 6 Claims
OG exemplary drawing
 
1. A method for transferring wireless power to a wireless power receiver, the method performed by a wireless power transmitter, which supports in-band communication using an operating frequency and out-band communication using another operating frequency different from the operating frequency, and comprising:
receiving, from the wireless power receiver in a configuration phase via the in-band communication, a configuration packet for the wireless power receiver,
wherein the configuration packet includes an out-band flag informing whether the out-band communication is supported or not;
transmitting, to the wireless power receiver in a negotiation phase via the in-band communication, a capability packet for the wireless power transmitter; and
entering a power transfer phase after the negotiation phase,
after the negotiation phase, performing an authentication via the out-band communication,
wherein the wireless power transmitter transmits an out-band packet via the out-band communication,
wherein the out-band packet includes a plurality of Qi data and information for each of the plurality of Qi data, and
wherein each of the information specifies a length for each of the plurality of Qi data.