公开(公告)号：US20210006386A1

公开(公告)日：2021-01-07

申请号：US17018538

申请日：2020-09-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunlei Qi ,  Chunrong Li

IPC: H04L7/00

Abstract: A device determines a first latency value of a first data flow from a first physical port of the device to a second physical port of the device and a second latency value of a second data flow from the second physical port to the first physical port, where the first latency value is less than the second latency value. The device determines a first target latency value based on the first latency value and the second latency value. The device adjusts a latency value of the first data flow to the first target latency value.

公开(公告)号：US20130039659A1

公开(公告)日：2013-02-14

申请号：US13656312

申请日：2012-10-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chunrong Li

IPC: H04B10/20

CPC classification number: H04J3/12 ,  H04J2203/0082 ,  H04J2203/0089

Abstract: The present invention relates to the field of communications technologies and discloses a method, an apparatus and a system for transmitting SDH/Sonet section overhead bytes, which reduce a burden of an intermediate node of a PTN network in a process of transmitting DCC bytes in the PTN network. In the present invention, a pseudo wire is established between a local end node and a peer end node. The local end node separates target overhead bytes from section overhead bytes of an SDH/Sonet frame, where the target overhead bytes include DCC bytes; packages the target overhead bytes to obtain a dedicated overhead packet; and sends the dedicated overhead packet to the peer end node, where the dedicated overhead packet is transmitted as a service packet of the pseudo wire. The embodiments of the present invention are mainly applied to a process of transmitting an SDH/Sonet service in the PTN network.

Abstract translation: 本发明涉及通信技术领域，并且公开了一种用于发送SDH / Sonet部分开销字节的方法，装置和系统，其减少在发送DCC字节的过程中PTN网络的中间节点的负担 PTN网络。 在本发明中，在本地端节点和对端节点之间建立伪线。 本地端节点将目标开销字节与SDH / Sonet帧的部分开销字节分开，其中目标开销字节包括DCC字节; 封装目标开销字节以获得专用开销数据包; 并将专用开销分组发送到作为伪线的服务分组的专用开销分组的对端节点。 本发明的实施例主要应用于在PTN网络中发送SDH / Sonet业务的过程。

公开(公告)号：US11641266B2

公开(公告)日：2023-05-02

申请号：US17018538

申请日：2020-09-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunlei Qi ,  Chunrong Li

IPC: H04L7/00

Abstract: A device determines a first latency value of a first data flow from a first physical port of the device to a second physical port of the device and a second latency value of a second data flow from the second physical port to the first physical port, where the first latency value is less than the second latency value. The device determines a first target latency value based on the first latency value and the second latency value. The device adjusts a latency value of the first data flow to the first target latency value.

公开(公告)号：US09184862B2

公开(公告)日：2015-11-10

申请号：US13656312

申请日：2012-10-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chunrong Li

IPC: H04J3/12

CPC classification number: H04J3/12 ,  H04J2203/0082 ,  H04J2203/0089

Abstract: The present invention relates to the field of communications technologies and discloses a method, an apparatus and a system for transmitting SDH/Sonet section overhead bytes, which reduce a burden of an intermediate node of a PTN network in a process of transmitting DCC bytes in the PTN network. In the present invention, a pseudo wire is established between a local end node and a peer end node. The local end node separates target overhead bytes from section overhead bytes of an SDH/Sonet frame, where the target overhead bytes include DCC bytes; packages the target overhead bytes to obtain a dedicated overhead packet; and sends the dedicated overhead packet to the peer end node, where the dedicated overhead packet is transmitted as a service packet of the pseudo wire. The embodiments of the present invention are mainly applied to a process of transmitting an SDH/Sonet service in the PTN network.

Abstract translation: 本发明涉及通信技术领域，并且公开了一种用于发送SDH / Sonet部分开销字节的方法，装置和系统，其减少在发送DCC字节的过程中PTN网络的中间节点的负担 PTN网络。 在本发明中，在本地端节点和对端节点之间建立伪线。 本地端节点将目标开销字节与SDH / Sonet帧的部分开销字节分开，其中目标开销字节包括DCC字节; 封装目标开销字节以获得专用开销数据包; 并将专用开销分组发送到作为伪线的服务分组的专用开销分组的对端节点。 本发明的实施例主要应用于在PTN网络中发送SDH / Sonet业务的过程。

公开(公告)号：US20140092920A1

公开(公告)日：2014-04-03

申请号：US14098221

申请日：2013-12-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chunrong Li ,  Dajun Ma

IPC: H04L12/931

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。

公开(公告)号：US11876884B2

公开(公告)日：2024-01-16

申请号：US17368986

申请日：2021-07-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunlei Qi ,  Chunrong Li

IPC: H04B10/50 ,  H04B10/66 ,  H04L7/00 ,  H04B10/40 ,  H04Q11/00

CPC classification number: H04L7/0075 ,  H04B10/40 ,  H04B10/50 ,  H04B10/66 ,  H04Q2011/0045 ,  H04Q2213/1336 ,  H04Q2213/36

Abstract: This application provides a communication method and an optical module. The method includes: A first optical module determines a first delay. The first optical module sends the first delay to an interface chip. According to the communication method and the optical module that are provided in this application, a delay in the optical module can be reported to the interface chip, so as to improve precision of time synchronization between a master clock and a slave clock, thereby further improving clock precision of a network device.

公开(公告)号：US20230258890A1

公开(公告)日：2023-08-17

申请号：US18302011

申请日：2023-04-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaorui Liu ,  Chaojun Deng ,  Chunrong Li ,  Xiaoyu Tang

IPC: G02B6/42 ,  H01R43/18 ,  H01R13/506

CPC classification number: G02B6/4269 ,  G02B6/4284 ,  H01R13/506 ,  H01R43/18

Abstract: An optical cage assembly includes a box-like housing, a radiator, and a cover-like fastener. The box-like housing has a slot. A first housing wall of the box-like housing has an opening at a position close to a slot opening of the slot. The radiator is located at the opening and can be bonded to an electrical connector plugged into the slot. The cover-like fastener is fastened to housing walls of the box-like housing, and the cover-like fastener has a memory alloy member, where the memory alloy member is located on a surface that is of the radiator and that is away from the opening. In this disclosure, easy plugging and unplugging of an optical module in the slot can be implemented, heat transfer between the radiator and the optical module can be accelerated, and an effect of heat dissipation for the optical module can be enhanced.

公开(公告)号：US11336475B2

公开(公告)日：2022-05-17

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 ,  H04L41/0654

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：US20210385127A1

公开(公告)日：2021-12-09

申请号：US17405452

申请日：2021-08-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L12/24

Abstract: In an embodiment, the application provides a flexible Ethernet (FlexE) communication method, which includes: receiving, by a first network device by using a FlexE group, n first overhead blocks sent by a second network device, the FlexE group comprising n physical layer apparatuses (PHYs); and storing, by the first network device, the n first overhead blocks in n memories in the first time period. The method further includes simultaneously reading, by the first network device, the n first overhead blocks from the n memories, after a preset duration T starting from a moment at which a first overhead block is stored in a corresponding memory. The first overhead block is a last stored first overhead block in the n first overhead blocks, the duration T is greater than or equal to one clock cycle.

公开(公告)号：US20210336762A1

公开(公告)日：2021-10-28

申请号：US17368986

申请日：2021-07-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunlei Qi ,  Chunrong Li

IPC: H04L7/00 ,  H04B10/50 ,  H04B10/66

Abstract: This application provides a communication method and an optical module. The method includes: A first optical module determines a first delay. The first optical module sends the first delay to an interface chip. According to the communication method and the optical module that are provided in this application, a delay in the optical module can be reported to the interface chip, so as to improve precision of time synchronization between a master clock and a slave clock, thereby further improving clock precision of a network device.