US 11,736,140 B2
Mixed signal low noise interference cancellation
David Richard Pehlke, Westlake Village, CA (US); Anand Raghavan, Irvine, CA (US); Poul Olesen, Stoevring (DK); Werner Schelmbauer, Steyr (AT); Thorsten Tracht, Munich (DE); Wolfgang Thomann, Munich (DE); Amir Israel Rubin, Kiryat Ono (IL); Assi Jakoby, Raanana (IL); and Ofer Benjamin, Petach Tikva (IL)
Assigned to Skyworks Solutions, Inc., Irvine, CA (US)
Filed by Skyworks Solutions, Inc., Irvine, CA (US)
Filed on Sep. 23, 2020, as Appl. No. 16/948,549.
Claims priority of provisional application 62/906,917, filed on Sep. 27, 2019.
Prior Publication US 2021/0099199 A1, Apr. 1, 2021
Int. Cl. H04B 1/525 (2015.01); H04B 1/10 (2006.01); H04B 7/0413 (2017.01); H04B 1/04 (2006.01); H04B 1/12 (2006.01)
CPC H04B 1/525 (2013.01) [H04B 1/0475 (2013.01); H04B 1/1027 (2013.01); H04B 1/123 (2013.01); H04B 7/0413 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless device comprising:
a plurality of front end systems including a first front end system and a second front end system; and
a plurality of transceivers including a first transceiver including a transmitter configured to transmit a transmit signal through the first front end system, and a second transceiver including a receiver configured to process a receive signal from the second front end system, the second transceiver further including a first feedback receiver configured to process a first feedback signal from the first front end system to generate a first digital interference cancellation signal and to provide the first digital interference cancellation signal to the receiver for compensating the receive signal for interference arising from the transmitter, and a second feedback receiver configured to process a second feedback signal from the first front end system to generate a second digital interference cancellation signal and to provide the second digital interference cancellation signal to the receiver for compensating the receive signal for interference arising from the transmitter.