公开(公告)号：US20230136077A1

公开(公告)日：2023-05-04

申请号：US18147526

申请日：2022-12-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchun LU ,  Liang LI ,  Lin MA

IPC: H04L1/1812 ,  H04L1/00

Abstract: This disclosure provides a retransmission method and a communication apparatus, applicable to a wireless or wired communication system. One example method includes: After receiving a signal from a second device, a first device performs first decoding on the signal, then determines whether an error occurs in the signal and a first quantity, and determines, based on a relationship between the first quantity and a first threshold, whether to request the second device to send a first data block, where the first quantity is a quantity of errors that occur in the signal received from the second device, the signal is used to transmit the first data block, and the first threshold is a maximum quantity of errors that can be corrected when the first device decodes the first data block.

公开(公告)号：US20210399831A1

公开(公告)日：2021-12-23

申请号：US17466903

申请日：2021-09-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuchun LU ,  Yan ZHUANG

IPC: H04L1/00

Abstract: A data transmission method, apparatus, and system are applied to the field of communication technologies. The method includes: performing demultiplexing processing on obtained y first data streams to obtain x second data streams, where the y first data streams are obtained through bit multiplexing processing; mapping the x second data streams at a granularity of n bits to obtain z third data streams; and outputting the z third data streams over an output lane, where y, x, n, and z are all positive integers, and n≥2. The method may be applied to an Ethernet high-speed interface.

公开(公告)号：US20210044416A1

公开(公告)日：2021-02-11

申请号：US17081632

申请日：2020-10-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchun LU

IPC: H04L7/033

Abstract: Embodiments of this application disclose a phase detection method, a phase detection circuit, and a clock recovery apparatus. The method includes: receiving a first signal, and deciding a (2M−1) level of the first signal to obtain a decision result, where the first signal is a (2M−1)-level signal, and M is a positive integer: obtaining a response amplitude parameter of a transmission channel; extracting clock phase information in the first signal based on the first signal, the decision result, and the response amplitude parameter; and determining output clock phase information based on at least three decision results and at least three pieces of clock phase information in at least three symbol periods. According to the foregoing method, a stable phase detection gain can be achieved when a clock phase is tuned to a pulse response edge