US 11,956,104 B2
Equalization and estimation processing in wireless devices
Oner Orhan, San Jose, CA (US); Hosein Nikopour, San Jose, CA (US); Mehnaz Rahman, San Jose, CA (US); Ivan Simoes Gaspar, Portland, CA (US); Shilpa Talwar, Cupertino, CA (US); Stefano Pellerano, Beaverton, OR (US); Claudio Da Silva, Portland, OR (US); Namyoon Lee, Austin, TX (US); Yo Seb Jeon, Gyeongbuk (KR); and Eren Sasoglu, Mountain View, CA (US)
Assigned to Intel Corporation, Santa Clara, CA (US)
Appl. No. 17/642,118
Filed by Intel Corporation, Santa Clara, CA (US)
PCT Filed Dec. 26, 2019, PCT No. PCT/US2019/068574
§ 371(c)(1), (2) Date Mar. 10, 2022,
PCT Pub. No. WO2021/133396, PCT Pub. Date Jul. 1, 2021.
Prior Publication US 2022/0393913 A1, Dec. 8, 2022
Int. Cl. H04L 25/03 (2006.01); H04B 1/12 (2006.01)
CPC H04L 25/03057 (2013.01) [H04B 1/123 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An apparatus of a communication device, the apparatus comprising:
a receiver comprising:
equalization circuitry configured to receive a filtered radio frequency (RF) signal and generate an equalized RF signal;
non-linearity compensation circuitry configured to apply a non-linear feature set to the equalized RF signal to generate a compensated signal, the non-linear feature set including a plurality of weights; and
closed-loop training circuitry configured to:
compare, in a digital domain of the receiver, a plurality of signal constellation points corresponding to the compensated signal with a plurality of training samples to determine an error signal associated with the plurality of signal constellation points, the plurality of training samples generated internally within the receiver; and
adjust the plurality of weights of the non-linear feature set based on the determined error signal.