公开(公告)号：US12081275B2

公开(公告)日：2024-09-03

申请号：US18071402

申请日：2022-11-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dmitry Anatolievich Dolgikh ,  Wanyang Wu ,  Plotnikov Pavel

IPC: H04B10/00 ,  H04B10/079 ,  H04B10/516 ,  H04B10/61 ,  H04J14/00

CPC classification number: H04B10/6162 ,  H04B10/07951 ,  H04B10/516

Abstract: This application provides a signal processing method and apparatus, and a coherent receiver. The signal processing method includes: obtaining P real-number signals; performing at least number theoretic transform NTT processing on the P real-number signals to obtain P transform-domain first real-number signals; performing at least clock recovery on the P transform-domain first real-number signals to obtain P transform-domain second real-number signals; performing at least polarization compensation and inverse number theoretic transform INTT processing on the P transform-domain second real-number signals to obtain m time-domain complex-number signals X and m time-domain complex-number signals Y; and performing phase recovery and decoding on the m time-domain complex-number signals X and the m time-domain complex-number signals Y to obtain bit signals.

公开(公告)号：US20230163857A1

公开(公告)日：2023-05-25

申请号：US18071402

申请日：2022-11-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dmitry Anatolievich Dolgikh ,  Wanyang Wu ,  Plotnikov Pavel

IPC: H04B10/61 ,  H04B10/516 ,  H04B10/079

CPC classification number: H04B10/6162 ,  H04B10/516 ,  H04B10/07951

Abstract: This application provides a signal processing method and apparatus, and a coherent receiver. The signal processing method includes: obtaining P real-number signals; performing at least number theoretic transform NTT processing on the P real-number signals to obtain P transform-domain first real-number signals; performing at least clock recovery on the P transform-domain first real-number signals to obtain P transform-domain second real-number signals; performing at least polarization compensation and inverse number theoretic transform INTT processing on the P transform-domain second real-number signals to obtain m time-domain complex-number signals X and m time-domain complex-number signals Y; and performing phase recovery and decoding on the m time-domain complex-number signals X and the m time-domain complex-number signals Y to obtain bit signals.

公开(公告)号：US12081270B2

公开(公告)日：2024-09-03

申请号：US17981223

申请日：2022-11-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie Chen ,  Starovoit Ivan ,  Plotnikov Pavel ,  Hongchen Yu

IPC: H04B10/61 ,  H04B10/2507 ,  H04B10/54 ,  H04B10/69

CPC classification number: H04B10/541 ,  H04B10/2507 ,  H04B10/616 ,  H04B10/6163 ,  H04B10/6971

Abstract: A device and method related to processing an optical signal so as to compensate nonlinear distortions of optic fibers are provided. The method includes: generating a first signal by equalizing the optical signal using a first DBP algorithm; generate a first sequence of LLRs by demapping and deinterleaving the first signal; generating a first sequence of bits by iteratively decoding the first sequence of LLRs for a first number of iterations; generating a sequence of QAM symbols by mapping and interleaving the first sequence of bits; generating a second signal by equalizing the first signal based on the sequence of QAM symbols using a second DBP algorithm; generating a second sequence of LLRs by demapping and deinterleaving the second signal; and generating a second sequence of bits by iteratively decoding the second sequence of LLRs for a second number of iterations.

公开(公告)号：US20230072299A1

公开(公告)日：2023-03-09

申请号：US17981223

申请日：2022-11-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie Chen ,  Starovoit Ivan ,  Plotnikov Pavel ,  Xinyu Liang

IPC: H04B10/54

Abstract: A device and method related to processing an optical signal so as to compensate nonlinear distortions of optic fibers are provided. The method includes: generating a first signal by equalizing the optical signal using a first DBP algorithm; generate a first sequence of LLRs by demapping and deinterleaving the first signal; generating a first sequence of bits by iteratively decoding the first sequence of LLRs for a first number of iterations; generating a sequence of QAM symbols by mapping and interleaving the first sequence of bits; generating a second signal by equalizing the first signal based on the sequence of QAM symbols using a second DBP algorithm; generating a second sequence of LLRs by demapping and deinterleaving the second signal; and generating a second sequence of bits by iteratively decoding the second sequence of LLRs for a second number of iterations.