US 12,388,526 B2
Method and system for compressing and employing pattern dependent look-up table
Jianhong Ke, Stittsville (CA); Hongliang Li, Dollard-Des-Ormeaux (CA); Xuefeng Tang, Kanata (CA); and Chuandong Li, Ottawa (CA)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Mar. 10, 2023, as Appl. No. 18/181,819.
Prior Publication US 2024/0305375 A1, Sep. 12, 2024
Int. Cl. H04B 10/00 (2013.01); G06N 20/00 (2019.01); H04B 10/2507 (2013.01); H04J 14/00 (2006.01)
CPC H04B 10/2507 (2013.01) [G06N 20/00 (2019.01)] 6 Claims
OG exemplary drawing
 
1. A method for pre-compensating an under-correct symbol, the method comprising:
based on a first data symbol sequence, selecting a base subset from a plurality of base subsets included in a compressed Pattern Dependent Look-up Table (PDLUT);
in the event that the first data symbol sequence is included in the base subset,
selecting an approximate distortion correction value corresponding to the first data symbol sequence from the base subset;
in the event that the first data symbol sequence is not included in the base subset,
extracting mapping coefficients from a mapping table included in the compressed PDLUT,
based on the mapping coefficients, mapping the base subset to generate a desired subset, and
selecting an approximate distortion correction value corresponding to the first data symbol sequence from the desired subset; and
applying the approximate distortion correction value to the under-correct symbol.