US 12,413,101 B2
Method and device for transmitting and receiving based on wireless communication using reconfigurable intelligent reflecting surfaces
Kae Won Choi, Suwon-si (KR); Mihn Tran Nguyen, Suwon-si (KR); Je Hyeon Park, Suwon-si (KR); and Myeong Chan Ha, Suwon-si (KR)
Assigned to Research & Business Foundation Sungkyunkwan University, Suwon-si (KR)
Filed by RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, Suwon-si (KR)
Filed on Dec. 6, 2022, as Appl. No. 18/075,590.
Claims priority of application No. 10-2021-0172730 (KR), filed on Dec. 6, 2021.
Prior Publication US 2023/0261376 A1, Aug. 17, 2023
Int. Cl. H02J 50/20 (2016.01); H01Q 3/46 (2006.01); H02J 50/23 (2016.01); H02J 50/40 (2016.01); H02J 50/50 (2016.01); H04B 7/04 (2017.01); H04B 7/0408 (2017.01); H04B 7/06 (2006.01)
CPC H02J 50/20 (2016.02) [H01Q 3/46 (2013.01); H02J 50/23 (2016.02); H02J 50/40 (2016.02); H02J 50/50 (2016.02); H04B 7/04013 (2023.05); H04B 7/0408 (2013.01); H04B 7/0686 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for transmitting power in wireless communication using reconfigurable intelligent reflecting surfaces (RIS) of an electronic device, the method comprising:
determining a value of a reflection coefficient of each unit cell or tile by scanning each tile of a reconfigurable intelligent reflecting surface (RIS) by a signal radiated through a transmitter;
sending a beam to the reconfigurable intelligent reflecting surface (RIS) by controlling the transmitter; and
multi-focusing an electromagnetic wave signal incident on the reconfigurable intelligent reflecting surface (RIS) on a plurality of receivers by setting an on/off state in each unit cell of the reconfigurable intelligent reflecting surface (RIS) based on the determined value of the reflection coefficient of each unit cell or tile,
wherein the tile is a partial array of the RIS having the a same size, and supports far-field communication for the plurality of receivers.