公开(公告)号：US20200228361A1

公开(公告)日：2020-07-16

申请号：US16830911

申请日：2020-03-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Chunrong Li ,  Yongjian Hu ,  Weiping Xu

IPC: H04L12/18 ,  H04L12/24

Abstract: A multicast packet transmission method, apparatus, and system, where the method is applied to a multicast ring network and the method includes receiving, by a first network node in the multicast ring network through a first path in a clockwise direction of the multicast ring network, a first multicast packet from a second network node in the multicast ring network, receiving, by the first network node through a second path in an anticlockwise direction of the multicast ring network, a second multicast packet from the second network node, where a payload of the first multicast packet is the same as a payload of the second multicast packet, and forwarding, by the first network node, the first multicast packet or the second multicast packet to at least one multicast destination device connected to the first network node.

公开(公告)号：US10382237B2

公开(公告)日：2019-08-13

申请号：US16018982

申请日：2018-06-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guodao Chen ,  Chunrong Li

IPC: H04L27/00 ,  H04B10/2575 ,  H04L1/00 ,  H04B10/40

Abstract: A method and an apparatus for processing data of multiple rates, where the method includes receiving, by a data processing apparatus, first data whose transmission rate is a first rate and second data whose transmission rate is a second rate, obtaining, by the data processing apparatus, N1 pieces of third data and N2 pieces of fourth data according to the first data, obtaining, by the data processing apparatus, M1 pieces of fifth data and M2 pieces of sixth data according to the second data, obtaining, by the data processing apparatus, serial seventh data according to the N1 pieces of third data, the N2 pieces of fourth data, and a first modulation scheme, and obtaining, by the data processing apparatus, serial eighth data according to the M1 pieces of fifth data, the M2 pieces of sixth data, and a second modulation scheme.

公开(公告)号：US11792067B2

公开(公告)日：2023-10-17

申请号：US17404220

申请日：2021-08-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chunrong Li ,  Jingfeng Chen ,  Hongliang Sun ,  Jun Hu

IPC: H04L41/0677 ,  H04L41/0631 ,  H04L41/0686

CPC classification number: H04L41/0677 ,  H04L41/0631 ,  H04L41/0686 ,  H04J2203/006 ,  H04J2203/0085

Abstract: This application provides an isolation and recovery method and related network device for a case when one or more physical layer apparatuses (PHYs) in a flexible Ethernet group (FlexE group) are faulty. In the method, if a network device determines that a first overhead block corresponding to each current available PHY is stored in a corresponding memory, the network device determines that a FlexE group meets a PHY alignment condition, and starts to simultaneously read cached data from all memories. Therefore, there is no need to insert local fault LF code blocks to all clients, and there is no need to recreate a group. This effectively reduces the impact of a faulty PHY on client services carried by a normal PHY.

公开(公告)号：US11218572B2

公开(公告)日：2022-01-04

申请号：US16539542

申请日：2019-08-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunlei Qi ,  Chunrong Li ,  Yongjian Hu

IPC: H04L29/06 ,  H04L12/931 ,  H04L12/883 ,  H04L12/861 ,  H04L29/08

Abstract: A packet processing method includes: obtaining, at a Medium Access Control (MAC) layer, a first fragmented data frame included in a first data frame; buffering the first fragmented data frame into a first queue; obtaining, at the MAC layer, a second fragmented data frame included in a second data frame; buffering the second fragmented data frame into a second queue; sending the first fragmented data frame to a forwarding processing module; obtaining first forwarding information using the forwarding processing module; sending the second fragmented data frame to the forwarding processing module after sending the first fragmented data frame to the forwarding processing module; and obtaining second forwarding information.

公开(公告)号：US20200162186A1

公开(公告)日：2020-05-21

申请号：US16744786

申请日：2020-01-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guodao Chen ,  Chunrong Li

IPC: H04J14/02 ,  H04Q11/00

Abstract: An optical module includes a first multiplexer/demultiplexer and an optical receiver. The first multiplexer/demultiplexer is configured to receive a first optical signal from the second network device, separate a second optical signal having a first wavelength from the first optical signal, and transfer the second optical signal to the optical receiver. The first multiplexer/demultiplexer is further configured to transfer a third optical signal that is separated from the first optical signal and that has a wavelength other than the first wavelength to the third network device. The optical receiver is configured to receive the second optical signal.

公开(公告)号：US10389645B2

公开(公告)日：2019-08-20

申请号：US15797831

申请日：2017-10-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunlei Qi ,  Chunrong Li

IPC: H04J3/06 ,  H04L12/26 ,  H04W56/00 ,  H04L12/841

Abstract: A communications network delay variation smoothing method, an apparatus, and a system are disclosed. The method includes: clearing, by a local device, a forward delay threshold and a reverse delay threshold when an initialization time starts; and when determining that a maximum value between a real-time forward delay value corresponding to a current service flow fragment and a reverse delay threshold corresponding to the current service flow fragment is greater than a current value of the forward delay threshold, replacing the current value of the forward delay threshold with the maximum value. In this way, after the initialization ends, a delay threshold after the initialization ends is determined and is applied to delay compensation, thereby significantly reducing a bi-directional asymmetric delay variation, and avoiding a problem of abnormal user communication that is caused when the variation exceeds a limit.

公开(公告)号：US20180309603A1

公开(公告)日：2018-10-25

申请号：US16018982

申请日：2018-06-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guodao Chen ,  Chunrong Li

IPC: H04L27/00 ,  H04L1/00 ,  H04B10/2575

CPC classification number: H04L27/0008 ,  H04B10/25759 ,  H04B10/40 ,  H04L1/0005 ,  H04L27/00

Abstract: A method and an apparatus for processing data of multiple rates, where the method includes receiving, by a data processing apparatus, first data whose transmission rate is a first rate and second data whose transmission rate is a second rate, obtaining, by the data processing apparatus, N1 pieces of third data and N2 pieces of fourth data according to the first data, obtaining, by the data processing apparatus, M1 pieces of fifth data and M2 pieces of sixth data according to the second data, obtaining, by the data processing apparatus, serial seventh data according to the N1 pieces of third data, the N2 pieces of fourth data, and a first modulation scheme, and obtaining, by the data processing apparatus, serial eighth data according to the MI pieces of fifth data, the M2 pieces of sixth data, and a second modulation scheme.

公开(公告)号：US09253119B2

公开(公告)日：2016-02-02

申请号：US14098221

申请日：2013-12-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chunrong Li ,  Dajun Ma

IPC: H04L12/931 ,  H04J3/16 ,  H04L12/64

CPC classification number: H04L49/20 ,  H04J3/1611 ,  H04J2203/0089 ,  H04L12/6418

Abstract: The present invention discloses a method for AU-3 circuit emulation, including: converting frame data from an administrative unit AU-3 frame format into a tributary unit TU-3 frame format; mapping the frame data in the TU-3 frame format into a virtual container VC4 to obtain the frame data in a VC4 frame format; and emulating the frame data in the VC4 frame format. In embodiments of the present invention, frame data is converted from an AU-3 frame format into a TU-3 frame format, and the frame data in the TU-3 frame format is mapped into a virtual container VC4 to obtain frame data in the VC4 frame format. In this way, the frame data in the VC4 frame format is emulated, a requirement of transparently transmitting AU pointers in the present network is fulfilled, that is, the requirement of emulating and transparently transmitting the content of an entire AU is fulfilled.

Abstract translation: 本发明公开了一种用于AU-3电路仿真的方法，包括：将帧数据从管理单元AU-3帧格式转换为支路单元TU-3帧格式; 将TU-3帧格式的帧数据映射到虚拟容器VC4中以获得VC4帧格式的帧数据; 并以VC4帧格式仿真帧数据。 在本发明的实施例中，将帧数据从AU-3帧格式转换为TU-3帧格式，将TU-3帧格式的帧数据映射到虚拟容器VC4中，以获得帧数据 VC4帧格式。 以这种方式，模拟了VC4帧格式的帧数据，满足了在当前网络中透明传输AU指针的要求，即满足了对整个AU的内容进行仿真和透明传输的要求。