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公开(公告)号：US11824636B2
公开(公告)日：2023-11-21
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
CPC classification number: H04J3/0667 , H03M9/00 , H04J3/0632 , H04J3/0688 , H04J3/1658 , 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.
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公开(公告)号：US20230138058A1
公开(公告)日：2023-05-04
申请号：US18146634
申请日：2022-12-27
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.
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公开(公告)号：US11552721B2
公开(公告)日：2023-01-10
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.
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公开(公告)号：US20220021758A1
公开(公告)日：2022-01-20
申请号：US17489261
申请日：2021-09-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Penghao Si , Xinyuan Wang , Jingfeng Chen
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.
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公开(公告)号：US20200244383A1
公开(公告)日：2020-07-30
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
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.
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Patent Agency Ranking
16.发明授权公开(公告)号：US12244684B2
公开(公告)日：2025-03-04
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
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.
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公开(公告)号：US11843452B2
公开(公告)日：2023-12-12
申请号：US18146634
申请日：2022-12-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiang He , Yunlei Qi , Jingfeng Chen , Tao Lin , Junmin Song , Xinyuan Wang
IPC: H04J3/06
CPC classification number: H04J3/0661
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.
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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.
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公开(公告)号：US11146669B2
公开(公告)日：2021-10-12
申请号：US16392178
申请日：2019-04-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Penghao Si , Xinyuan Wang , Jingfeng Chen
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.
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公开(公告)号：US11108485B2
公开(公告)日：2021-08-31
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
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.
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