US 12,267,792 B2
Interference cancellation repeater and method of operation thereof
Nagwon Kwon, Seongnam-si (KR)
Assigned to SOLID, INC., Seongnam-si (KR)
Appl. No. 17/627,451
Filed by SOLiD, INC., Seongnam-si (KR)
PCT Filed Aug. 10, 2020, PCT No. PCT/KR2020/010554
§ 371(c)(1), (2) Date Jan. 14, 2022,
PCT Pub. No. WO2021/029639, PCT Pub. Date Feb. 18, 2021.
Claims priority of application No. 10-2019-0099121 (KR), filed on Aug. 13, 2019; and application No. 10-2020-0099508 (KR), filed on Aug. 7, 2020.
Prior Publication US 2022/0264494 A1, Aug. 18, 2022
Int. Cl. H04L 5/14 (2006.01); H04W 56/00 (2009.01)
CPC H04W 56/001 (2013.01) [H04L 5/1461 (2013.01); H04L 5/1469 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of operating an interference cancellation repeater, which shares a part of a downlink communication path and an uplink communication path, the method comprising:
detecting a synchronization signal from a received signal;
selecting one of a plurality of adaptive filters based on the detected synchronization signal; and
canceling interference included in the received signal by using the selected adaptive filter,
wherein an analog-to-digital converter and a digital-to-analog converter are included on a path shared by the downlink communication path and the uplink communication path,
wherein the detecting of the synchronization signal comprises determining a downlink communication period or an uplink communication period based on the synchronization signal, and
wherein the selecting one of the plurality of adaptive filters based on the detected synchronization signal comprises:
selecting a first adaptive filter from among the plurality of adaptive filters in the uplink communication period, and
selecting a second adaptive filter from among the plurality of adaptive filters in the downlink communication period.