公开(公告)号：US11799992B2

公开(公告)日：2023-10-24

申请号：US17489261

申请日：2021-09-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Penghao Si ,  Xinyuan Wang ,  Jingfeng Chen

IPC: H04L69/324 ,  H04L69/00 ,  H04L9/40 ,  H04L65/40 ,  H04L12/40

CPC classification number: H04L69/324 ,  H04L9/40 ,  H04L65/40 ,  H04L69/02 ,  H04L12/40

Abstract: A data transmission method in FlexE includes: obtaining multiple data blocks sent by L FlexE clients, where L is greater than or equal to 1; and sending a data frame including the multiple data blocks to a physical-layer device, where a transmission rate of the data frame is N*100 Gbit/s, the data frame includes T data block groups, each of the T data block groups includes M continuous data block subgroups, each of the M continuous data block subgroups includes R*N continuous data blocks, the data frame further includes T overhead block groups, a tth overhead block group includes N continuous overhead blocks. According to the method, each data block subgroup in a data frame can include R*N data blocks, and each overhead block group can include N overhead blocks, and a data transmission rate can be adjusted flexibly.

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：US20230291537A1

公开(公告)日：2023-09-14

申请号：US18317697

申请日：2023-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Fanshun Meng ,  Jingfei Lyu ,  Jingfeng Chen

IPC: H04L7/00

CPC classification number: H04L7/0087

Abstract: A method includes: a first network device obtains a synchronization mode indication and synchronization information, where the synchronization mode indication indicates a target network device to perform synchronization based on the synchronization information. The first network device sends the synchronization mode indication and the synchronization information through a network that supports FlexE. A second network device receives the synchronization mode indication and the synchronization information through a network that supports FlexE. The second network device performs synchronization based on the synchronization mode indication and the synchronization information.

公开(公告)号：US20230155756A1

公开(公告)日：2023-05-18

申请号：US18155804

申请日：2023-01-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunlei Qi ,  Qiwen Zhong ,  Zhigang Zhu ,  Kai Liu ,  Jingfeng Chen

IPC: H04L5/00 ,  H04J3/16

CPC classification number: H04L5/0044 ,  H04J3/16

Abstract: This application provides a data transmission method, a communications apparatus, a network device, a communications system, a storage medium, and a computer program product, to resolve a current problem that bandwidth waste is relatively severe when a service is carried based on a FlexE technology. In this application, a frame structure of a fine-granularity service frame is newly defined, so that service data can be transmitted in a time division multiplexing mode by using an Ethernet (ETH) interface.

公开(公告)号：US11356188B2

公开(公告)日：2022-06-07

申请号：US16847258

申请日：2020-04-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang He ,  Yunlei Qi ,  Jingfeng Chen ,  Tao Lin ,  Junmin Song ,  Xinyuan Wang

IPC: H04J3/06 ,  H03M9/00 ,  H04J3/16 ,  H04L69/323

Abstract: This application provides a method for sending and receiving a clock synchronization packet in FlexE. The method includes: generating, by a sending apparatus, indication information and a plurality of data blocks, where the plurality of data blocks are obtained by encoding a first clock synchronization packet, the indication information is used to indicate a first data block, and the first data block is a data block used for timestamp sampling in the plurality of data blocks; determining, by the sending apparatus, according to the indication information, a moment at which the first data block arrives at a medium dependent interface MDI of the sending apparatus, and generating a sending timestamp, where the sending timestamp is used to record a sending moment of the first clock synchronization packet; generating a second clock synchronization packet carrying the sending timestamp; and sending, by the sending apparatus, the second clock synchronization packet.

公开(公告)号：US20220303035A1

公开(公告)日：2022-09-22

申请号：US17833862

申请日：2022-06-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang He ,  Yunlei Qi ,  Jingfeng Chen ,  Tao Lin ,  Junmin Song ,  Xinyuan Wang

IPC: H04J3/06 ,  H03M9/00 ,  H04J3/16 ,  H04L69/323

Abstract: This disclosure provides a method for sending and receiving a clock synchronization packet in FlexE. The method includes: generating, by a sending apparatus, indication information and a plurality of data blocks, where the plurality of data blocks are obtained by encoding a first clock synchronization packet, the indication information is used to indicate a first data block, and the first data block is a data block used for timestamp sampling in the plurality of data blocks; determining, by the sending apparatus, according to the indication information, a moment at which the first data block arrives at a medium dependent interface MDI of the sending apparatus, and generating a sending timestamp, where the sending timestamp is used to record a sending moment of the first clock synchronization packet; generating a second clock synchronization packet carrying the sending timestamp; and sending, by the sending apparatus, the second clock synchronization packet.

公开(公告)号：US20210376943A1

公开(公告)日：2021-12-02

申请号：US17403131

申请日：2021-08-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang He ,  Yunlei Qi ,  Jingfeng Chen ,  Tao Lin ,  Junmin Song ,  Xinyuan Wang

IPC: H04J3/06

Abstract: A clock synchronization method includes receiving, by a receiving apparatus, a plurality of data blocks using a plurality of physical layer modules (PHYs), where the plurality of data blocks include a plurality of head data blocks, performing, by the receiving apparatus, timestamp sampling on the plurality of data blocks to generate a plurality of receipt timestamps, aligning, by the receiving apparatus, the plurality of receipt timestamps using a first receipt timestamp as a reference, generating, by the receiving apparatus, a clock synchronization packet based on the plurality of data blocks, and writing, by the receiving apparatus, a value of a second receipt timestamp into the clock synchronization packet, where the second receipt timestamp is a receipt timestamp that is of a second data block and that is determined based on the plurality of aligned receipt timestamps.

公开(公告)号：US20200259578A1

公开(公告)日：2020-08-13

申请号：US16860688

申请日：2020-04-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang He ,  Yunlei Qi ,  Jingfeng Chen ,  Tao Lin ,  Junmin Song ,  Xinyuan Wang

IPC: H04J3/06

Abstract: A clock synchronization method includes receiving, by a receiving apparatus, a plurality of data blocks using a plurality of physical layer modules (PHYs), where the plurality of data blocks include a plurality of head data blocks, performing, by the receiving apparatus, timestamp sampling on the plurality of data blocks to generate a plurality of receipt timestamps, aligning, by the receiving apparatus, the plurality of receipt timestamps using a first receipt timestamp as a reference, generating, by the receiving apparatus, a clock synchronization packet based on the plurality of data blocks, and writing, by the receiving apparatus, a value of a second receipt timestamp into the clock synchronization packet, where the second receipt timestamp is a receipt timestamp that is of a second data block and that is determined based on the plurality of aligned receipt timestamps.

公开(公告)号：US20190281145A1

公开(公告)日：2019-09-12

申请号：US16392178

申请日：2019-04-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Penghao Si ,  Xinyuan Wang ,  Jingfeng Chen

IPC: H04L29/08 ,  H04L29/06

Abstract: A data transmission method includes: obtaining multiple data blocks sent by L FlexE clients, L is greater than or equal to 1; and sending a data frame including the multiple data blocks to a physical-layer device, where a transmission rate of the data frame is N*100 Gbit/s, the data frame includes T data block groups, each of the T data block groups includes M continuous data block subgroups, each of the M continuous data block subgroups includes R*N continuous data blocks, the data frame further includes T overhead block groups, a tth overhead block group includes N continuous overhead blocks. According to the method, each data block subgroup in a data frame can include R*N data blocks, and each overhead block group can include N overhead blocks, and a data transmission rate can be adjusted flexibly.

公开(公告)号：US20230388984A1

公开(公告)日：2023-11-30

申请号：US18446884

申请日：2023-08-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Li Xu ,  Qiwen Zhong ,  Jingfeng Chen ,  Yunlei Qi

IPC: H04W72/0446 ,  H04W72/12

CPC classification number: H04W72/0446 ,  H04W72/12

Abstract: A communication method and device, and a chip system adjust, by adjusting a quantity of slot resources included in a multiframe, a bandwidth resource corresponding to one multiframe. A first communication device sends a first request message. The first request message is used to request to adjust a quantity of basic frames in a multiframe included in a first block sequence. The first communication device multiplexes, based on S1 slot resources corresponding to the adjusted multiframe in the first block sequence, Q1 first block sequences corresponding to a slot resource in the S1 slot resources, to obtain and send the first block sequence.