公开(公告)号：US12206433B2

公开(公告)日：2025-01-21

申请号：US18309014

申请日：2023-04-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zengchao Yan ,  Huixiao Ma ,  Zhongfeng Wang ,  Jun Lin

IPC: H03M13/15 ,  H03M13/19

Abstract: This application discloses an Ethernet coding method and apparatus, to adapt to a scenario in which a higher transmission bit error rate is caused by a high bandwidth. The method includes: a transmit end encodes first to-be-encoded information by using a first forward error correction (FEC) codeword, to obtain first encoded data, where the first forward error correction FEC codeword is a Reed-Solomon forward error correction (RS-FEC) codeword; and the transmit end encodes the first encoded data by using a second FEC codeword, to obtain second encoded data, where a code length N and an information bit length K of the second FEC codeword satisfy the following formula: M1*N/K≤M2, where M1 is a throughput of the first encoded data, and M2 is a throughput of the second encoded data.

公开(公告)号：US12160314B2

公开(公告)日：2024-12-03

申请号：US17525189

申请日：2021-11-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang He ,  Xinyuan Wang ,  Jun Lin ,  Zhongfeng Wang

IPC: H04L1/00 ,  H03M13/00 ,  H03M13/15 ,  H03M13/29

Abstract: A method includes: a first chip receives a first data stream from a second chip, where the first data stream is obtained through encoding by using a first forward error correction (FEC) code type; and the first chip re-encodes the first data stream at least once, to obtain a second data stream, where the second data stream is a concatenated FEC code stream obtained through encoding by using at least the first FEC code type and a second FEC code type.

公开(公告)号：US20220077875A1

公开(公告)日：2022-03-10

申请号：US17525189

申请日：2021-11-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang He ,  Xinyuan Wang ,  Jun Lin ,  Zhongfeng Wang

IPC: H03M13/29 ,  H04L1/00 ,  H03M13/15

Abstract: A method includes: a first chip receives a first data stream from a second chip, where the first data stream is obtained through encoding by using a first forward error correction (FEC) code type; and the first chip re-encodes the first data stream at least once, to obtain a second data stream, where the second data stream is a concatenated FEC code stream obtained through encoding by using at least the first FEC code type and a second FEC code type. This application provides a concatenated coding scheme, so that a gain is higher, an FEC code type conversion process is simplified, a delay and device power consumption that are required during FEC code type conversion are reduced, and a data transmission distance and a data transmission rate are increased.

公开(公告)号：US11121726B2

公开(公告)日：2021-09-14

申请号：US16993266

申请日：2020-08-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xinyuan Wang ,  Wenbin Yang ,  Zhongfeng Wang ,  Jun Lin

IPC: H03M13/00 ,  H03M13/29 ,  H03M13/15 ,  H04L27/04 ,  H04L27/06

Abstract: This application provides an encoding method, comprising: encoding first data to generate a first encoded sequence; encoding second data to generate a second encoded sequence, where a quantity of bits comprised in the first data is greater than a quantity of bits comprised in the second data, and a quantity of bits comprised in the first encoded sequence is equal to a quantity of bits comprised in the second encoded sequence; generating a symbol sequence by performing a PAM-4 modulation on an input signal, the first encoded sequence corresponds to a high bit of the input signal, and the second encoded sequence corresponds to a low bit of the input signal; and sending the symbol sequence. The method helps reduce a quantity of redundant bits, helps improve a code rate, and can reduce redundant information carried in a modulated symbol sequence.

公开(公告)号：US20200373942A1

公开(公告)日：2020-11-26

申请号：US16993266

申请日：2020-08-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xinyuan Wang ,  Wenbin Yang ,  Zhongfeng Wang ,  Jun Lin

IPC: H03M13/29 ,  H04L27/04 ,  H04L27/06 ,  H03M13/15 ,  H03M13/00

Abstract: This application provides an encoding method, comprising: encoding first data to generate a first encoded sequence; encoding second data to generate a second encoded sequence, where a quantity of bits comprised in the first data is greater than a quantity of bits comprised in the second data, and a quantity of bits comprised in the first encoded sequence is equal to a quantity of bits comprised in the second encoded sequence; generating a symbol sequence by performing a PAM-4 modulation on an input signal, the first encoded sequence corresponds to a high bit of the input signal, and the second encoded sequence corresponds to a low bit of the input signal; and sending the symbol sequence. The method helps reduce a quantity of redundant bits, helps improve a code rate, and can reduce redundant information carried in a modulated symbol sequence.