US 9,813,143 B2
Interference cancellation repeater
Nagwon Kwon, Seoul (KR); and Hyunchae Kim, Seoul (KR)
Assigned to SOLiD, INC., Seongnam-Si (KR)
Filed by SOLiD, INC., Seongnam-si, Gyeonggi-do (KR)
Filed on Dec. 27, 2016, as Appl. No. 15/391,209.
Claims priority of application No. 10-2015-0187868 (KR), filed on Dec. 28, 2015.
Prior Publication US 2017/0187449 A1, Jun. 29, 2017
Int. Cl. H04B 1/10 (2006.01); H04B 7/155 (2006.01)
CPC H04B 7/15585 (2013.01) 15 Claims
OG exemplary drawing
 
1. An interference cancellation repeater for canceling an interference signal included in an input signal, the interference cancellation repeater comprising:
a first adaptive filter configured to generate a first estimated signal;
a second adaptive filter configured to generate a second estimated signal;
a first scaler configured to scale the first estimated signal based on a first scale factor determined according to a channel state;
a second scaler configured to scale the second estimated signal based on a second scale factor determined according to the channel state;
a first canceller configured to generate a first interference canceled signal based on the input signal and the scaled first estimated signal; and
a second canceller configured to generate a second interference canceled signal based on the first interference canceled signal and the scaled second estimated signal.