US 12,463,856 B1
Method for compensating for nonlinear distortion of signal, model, and communication system
Linhai Gu, Chongqing (CN); Guangnan Zou, Chongqing (CN); Xuesong Wang, Chongqing (CN); and Bingqian Yu, Chongqing (CN)
Assigned to CHONGQING SATELITE NETWORK SYSTEM CO., LTD., Chongqing (CN)
Appl. No. 18/861,808
Filed by CHONGQING SATELITE NETWORK SYSTEM CO., LTD., Chongqing (CN)
PCT Filed Nov. 17, 2023, PCT No. PCT/CN2023/132247
§ 371(c)(1), (2) Date Jul. 8, 2025,
PCT Pub. No. WO2025/102338, PCT Pub. Date May 22, 2025.
Int. Cl. H04L 27/26 (2006.01); H03F 1/32 (2006.01)
CPC H04L 27/2614 (2013.01) [H03F 1/3241 (2013.01); H04L 27/2627 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for compensating for nonlinear distortion of a signal, comprising:
inputting an initial orthogonal frequency division multiplexing (OFDM) signal into a preset nonlinear compensation fusion model, wherein the nonlinear compensation fusion model comprises a band limited-digital pre-distortion (BL-DPD) module, a band limited-crest factor reduction (BL-CFR) module and an error compensation module, and the error compensation module is configured to perform error compensation on OFDM signals that are output by the BL-DPD module and the BL-CFR module;
obtaining a first OFDM signal, a second OFDM signal and a third OFDM signal after the initial OFDM signal is processed by the BL-DPD module, the BL-CFR module and the error compensation module respectively; and
obtaining, based on the first OFDM signal, the second OFDM signal and the third OFDM signal, an initial OFDM signal after nonlinear distortion compensation.