公开(公告)号：US11750310B2

公开(公告)日：2023-09-05

申请号：US17471676

申请日：2021-09-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingfei Lv ,  Boling Fan ,  Jinhui Wang ,  Liqing Chen

IPC: H04L7/04 ,  H04J3/06 ,  H04L7/00

CPC classification number: H04J3/0667 ,  H04L7/0012 ,  H04L7/0025 ,  H04L7/0029

Abstract: A clock synchronization packet exchanging method includes sending, by a first device in a Flexible Ethernet (FlexE) group, a first FlexE instance at a first physical layer (PHY), where the first FlexE instance includes a clock synchronization packet, and a second FlexE instance sent by the first device in the FlexE group at a second PHY also includes a clock synchronization packet. The clock synchronization packets are carried in a plurality of FlexE instances transmitted between a transmit end and a receive end in the FlexE group.

公开(公告)号：US11588568B2

公开(公告)日：2023-02-21

申请号：US17576423

申请日：2022-01-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinhui Wang ,  Liqing Chen ,  Hongwei Niu ,  Yunlei Qi

IPC: H04J3/06

Abstract: A packet processing method includes receiving a first packet by a first receiving interface of a media conversion module of a first network device, where the first packet includes a first alignment marker (AM), sending a second packet by a first sending interface of the media conversion module, where the second packet includes the first AM, and where the second packet is the first packet processed by the media conversion module, and calculating a time interval T1 between a time at which the media conversion module receives the first packet and a time at which the media conversion module sends the second packet, where the T1 is used to compensate for a first timestamp at which the first network device receives or sends the third packet.

公开(公告)号：US09985737B2

公开(公告)日：2018-05-29

申请号：US15142050

申请日：2016-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liqing Chen ,  Tao Lin

IPC: H04J3/06 ,  H04L12/28 ,  H04L29/12 ,  H04L12/741 ,  H04L12/70

CPC classification number: H04J3/0667 ,  H04L12/2854 ,  H04L29/12575 ,  H04L45/745 ,  H04L61/6022 ,  H04L2012/5652

Abstract: Embodiments of the present invention disclose a WAN interface based 1588V2 packet transmission method and apparatus, which relate to the field of communications technologies and can reduce complexity of 1588V2 packet transmission. The method includes: first, inserting, by a sending end, a 1588V2 packet into a payload area of a data frame, and sending, to a receiving end, the data frame carrying the 1588V2 packet; then, receiving, by the receiving end, the data frame that is sent by the sending end and carries the 1588V2 packet, and acquiring a receiving time at which the data frame is received; and finally, performing, by the receiving end, time synchronization adjustment on the receiving time. The embodiments of the present invention are applicable to 1588V2 packet transmission between networks.

公开(公告)号：US20160248530A1

公开(公告)日：2016-08-25

申请号：US15142050

申请日：2016-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liqing Chen ,  Tao Lin

IPC: H04J3/06 ,  H04L12/741 ,  H04L12/28 ,  H04L29/12

CPC classification number: H04J3/0667 ,  H04L12/2854 ,  H04L29/12575 ,  H04L45/745 ,  H04L61/6022 ,  H04L2012/5652

Abstract: Embodiments of the present invention disclose a WAN interface based 1588V2 packet transmission method and apparatus, which relate to the field of communications technologies and can reduce complexity of 1588V2 packet transmission. The method includes: first, inserting, by a sending end, a 1588V2 packet into a payload area of a data frame, and sending, to a receiving end, the data frame carrying the 1588V2 packet; then, receiving, by the receiving end, the data frame that is sent by the sending end and carries the 1588V2 packet, and acquiring a receiving time at which the data frame is received; and finally, performing, by the receiving end, time synchronization adjustment on the receiving time. The embodiments of the present invention are applicable to 1588V2 packet transmission between networks.

Abstract translation: 本发明的实施例公开了一种基于WAN接口的1588V2分组传输方法和装置，其涉及通信技术领域并且可以降低1588V2分组传输的复杂度。 该方法包括：首先，由发送端将1588V2分组插入数据帧的有效载荷区域，并向接收端发送携带1588V2分组的数据帧; 然后，由接收端接收发送端发送的数据帧并携带1588V2分组，并获取接收数据帧的接收时间; 最后，在接收端执行接收时间的时间同步调整。 本发明的实施例可应用于网络之间的1588V2分组传输。

公开(公告)号：US20220140929A1

公开(公告)日：2022-05-05

申请号：US17576423

申请日：2022-01-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinhui Wang ,  Liqing Chen ,  Hongwei Niu ,  Yunlei Qi

IPC: H04J3/06

Abstract: A packet processing method includes receiving a first packet by a first receiving interface of a media conversion module of a first network device, where the first packet includes a first alignment marker (AM), sending a second packet by a first sending interface of the media conversion module, where the second packet includes the first AM, and where the second packet is the first packet processed by the media conversion module, and calculating a time interval T1 between a time at which the media conversion module receives the first packet and a time at which the media conversion module sends the second packet, where the T1 is used to compensate for a first timestamp at which the first network device receives or sends the third packet.

公开(公告)号：US11245483B2

公开(公告)日：2022-02-08

申请号：US16797225

申请日：2020-02-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinhui Wang ,  Liqing Chen ,  Hongwei Niu ,  Yunlei Qi

IPC: H04J3/06

Abstract: A packet processing method includes receiving a first packet by a first receiving interface of a media conversion module of a first network device, where the first packet includes a first alignment marker (AM), sending a second packet by a first sending interface of the media conversion module, where the second packet includes the first AM, and the second packet is the first packet processed by the media conversion module, and calculating a time interval T1 between a time at which the media conversion module receives the first packet and a time at which the media conversion module sends the second packet, where the T1 is used to compensate for a first timestamp at which the first network device receives or sends the third packet.

公开(公告)号：US20210409140A1

公开(公告)日：2021-12-30

申请号：US17471676

申请日：2021-09-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingfei Lv ,  Boling Fan ,  Jinhui Wang ,  Liqing Chen

IPC: H04J3/06 ,  H04L7/00

Abstract: A clock synchronization packet exchanging method includes sending, by a first device in a Flexible Ethernet (FlexE) group, a first FlexE instance at a first physical layer (PHY), where the first FlexE instance includes a clock synchronization packet, and a second FlexE instance sent by the first device in the FlexE group at a second PHY also includes a clock synchronization packet. The clock synchronization packets are carried in a plurality of FlexE instances transmitted between a transmit end and a receive end in the FlexE group.