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1. 发明公开

EP4203568A1 TIME SYNCHRONIZATION FAILURE PROCESSING METHOD, DEVICE AND SYSTEM 审中-实审
公开(公告)号：EP4203568A1
公开(公告)日：2023-06-28
申请号：EP21871576.1
申请日：2021-09-24
申请人： Huawei Technologies Co., Ltd.
发明人： LYU, Jingfei , YU, Fang , FAN, Boling
IPC分类号： H04W56/00
摘要： This application discloses a time synchronization fault processing method, apparatus, and system, and belongs to the communication field. The method includes: When time of a first translator in a first network is not synchronized with a clock source in the first network, the first translator stops communicating time information with at least one other translator in the first network than the first translator, where the time information is used for obtaining time synchronized with a clock source in a second network. This application avoids obtaining incorrect time.

2. 发明公开

EP4387130A1 TIME SYNCHRONIZATION MONITORING METHOD 审中-实审
公开(公告)号：EP4387130A1
公开(公告)日：2024-06-19
申请号：EP22862810.3
申请日：2022-06-17
申请人： Huawei Technologies Co., Ltd.
发明人： ZENG, Xiaoyi , LYU, Jingfei , WANG, Jinhui
IPC分类号： H04J3/06
CPC分类号： H04W24/08 , H04W56/00 , H04J3/0667 , H04J3/14
摘要： A method for monitoring time synchronization, an apparatus, and a system are provided. The method includes: A first network device obtains synchronization path information (S401), where the synchronization path information is information about a synchronization path between a first time synchronization device and a time source. The first network device obtains time offset information of a plurality of time synchronization devices (S402), where the time offset information of each of the plurality of time synchronization devices is information about a time offset between the time synchronization device and an upstream time device, and the plurality of time synchronization devices are time synchronization devices on the synchronization path. The first network device calculates a time offset of the synchronization path based on the synchronization path information and the time offset information of the plurality of time synchronization devices (S403). The first network device may monitor an offset between time of each time synchronization device and time of the time source, so that accuracy of monitoring time synchronization is improved. In addition, no additional time source needs to be deployed, so that deployment difficulty is reduced.

3. 发明公开

EP4199409A1 MESSAGE PROCESSING METHOD AND APPARATUS, DEVICE, SYSTEM, AND STORAGE MEDIUM 审中-实审
公开(公告)号：EP4199409A1
公开(公告)日：2023-06-21
申请号：EP21863548.0
申请日：2021-08-25
申请人： Huawei Technologies Co., Ltd.
发明人： LYU, Jingfei , ZHANG, Xingxin
IPC分类号： H04L7/00 , H04J3/06
摘要： This application provides a message processing method and apparatus, a device, and a storage medium. For a communication system including at least three network devices, a port status of one of the at least three network devices is a master state, and port statuses of the other network devices are non-master states. A first network device in the communication system receives, through a first port, a first message sent by a second port and used to measure a delay, where the second port is a port of a second network device in the communication system. The first network device stops replying with a second message based on a port status of the first port being a non-master state, to prevent a 1588 function from being disabled because the second port receives a plurality of second messages. Alternatively, the first network device replies, to the second port through the first port, with a second message carrying the port status of the first port, so that the second network device can determine that the first port is in the non-master state and therefore does not process the second message, thereby preventing the 1588 function of the second port from being disabled.

4. 发明公开

EP4329219A1 PACKET TRANSMISSION METHOD AND APPARATUS, DEVICE, AND STORAGE MEDIUM 审中-实审
公开(公告)号：EP4329219A1
公开(公告)日：2024-02-28
申请号：EP22806215.4
申请日：2022-01-25
申请人： Huawei Technologies Co., Ltd.
发明人： LYU, Jingfei , RODRIGUES, Silvana , SU, Hongliang , LI, Hao
IPC分类号： H04J3/06
摘要： This application discloses a packet transmission method and apparatus, a device, and a storage medium, and relates to the field of communication technologies. The method includes: In response to that a second slave port of a network device is invalid or the second slave port does not exist, a second master port of the network device obtains a second dataset, where the second dataset is obtained by modifying a first dataset, and the first dataset includes a timestamp carried in a first clock packet received by a first slave port and data generated by the first slave port based on the first clock packet. The network device sends a second clock packet based on the second dataset through the second master port, where a timestamp carried in the second clock packet is the timestamp carried in the first clock packet. In the method, a simple manner is used, so that when a slave port of a clock domain in the network device is invalid or does not exist, the network device can still send, through a master port, a clock packet that carries precise time, to improve reliability of a communication system.

5. 发明公开

EP4068659A1 CLOCK PORT ATTRIBUTE RECOVERY METHOD, DEVICE, AND SYSTEM 有权
公开(公告)号：EP4068659A1
公开(公告)日：2022-10-05
申请号：EP21738393.4
申请日：2021-01-06
申请人： Huawei Technologies Co., Ltd.
发明人： LYU, Jingfei , ZHANG, Yawei , WANG, Jinhui , LI, Hao
IPC分类号： H04J3/06
摘要： This application discloses a clock port attribute recovery method, a device, a system, and a storage medium, and is applied to the field of clock technologies. The method includes: A network device sets a value of a port attribute of a clock port of the network device to a first value based on a case that the clock port does not receive any one of three types of clock messages: N synchronization messages, follow-up messages, and delay response messages within a timeout interval, where the first value indicates that a message is lost on the clock port. Based on a case that it is determined that a recovery condition is met, the network device sets the value of the port attribute of the clock port to a second value, where the second value indicates that a status of the clock port is that no message is lost.

6. 发明公开

EP4322545A1 CLOCK DETERMINATION METHOD AND APPARATUS, AND STORAGE MEDIUM 审中-实审
公开(公告)号：EP4322545A1
公开(公告)日：2024-02-14
申请号：EP22790960.3
申请日：2022-04-15
申请人： Huawei Technologies Co., Ltd.
发明人： LYU, Jingfei , MENG, Fanshun , WANG, Jinhui , SU, Wei
IPC分类号： H04Q11/00 , H04J3/06
摘要： This application discloses a method and an apparatus for determining a clock, and a storage medium, and pertains to the field of communication. The method includes: A first network device receives a first signal and at least one second signal, where the first signal carries data to be sent through a first flexible Ethernet interface; determines a first physical layer clock based on the first signal; determines a second physical layer clock based on the at least one second signal or the first physical layer clock and the at least one second signal; and uses the first physical layer clock or the second physical layer clock as a sending clock of a non-flexible Ethernet interface. The first network device includes the first flexible Ethernet interface and the non-flexible Ethernet interface. In this application, a network device can continue transmitting a clock of an upstream device through a non-flexible Ethernet interface.

7. 发明公开

EP4277169A1 COMMUNICATION METHOD AND DEVICE 审中-实审
公开(公告)号：EP4277169A1
公开(公告)日：2023-11-15
申请号：EP22748837.6
申请日：2022-01-13
申请人： Huawei Technologies Co., Ltd.
发明人： XUE, Jianlin , LYU, Jingfei , WU, Xuming
IPC分类号： H04J3/06
摘要： This application discloses a communication method and a device, and belongs to the communication field. The method includes: generating a passive optical network PON data frame, where the PON data frame includes an overhead area, the overhead area includes at least a part of a first timestamp, and the first timestamp is for time synchronization; and sending the PON data frame. This application can reduce operation overheads for parsing a PON data frame. This application is for time synchronization between an OLT and an ONU.

8. 发明公开

EP4236121A1 NETWORK SYNCHRONIZATION METHOD AND APPARATUS, AND DEVICE, SYSTEM AND READABLE STORAGE MEDIUM 审中-实审
公开(公告)号：EP4236121A1
公开(公告)日：2023-08-30
申请号：EP21890641.0
申请日：2021-06-30
申请人： Huawei Technologies Co., Ltd.
发明人： JIANG, Yuanlong , MENG, Fanshun , LYU, Jingfei , CHEN, Jingfeng
IPC分类号： H04J3/06
摘要： Embodiments of this application provide a network synchronization method, apparatus, device, and system, and a readable storage medium. The network synchronization 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. According to the method, which network devices among network devices supporting FlexE are target network devices to process synchronization information and a manner in which the network devices process the synchronization information can be indicated, thereby simplifying an operation process of configuring the network devices during network synchronization, and improving network synchronization efficiency.

9. 发明公开

EP4050822A1 METHOD FOR LOCATING CLOCK FAULT AND NETWORK APPARATUS 审中-公开
公开(公告)号：EP4050822A1
公开(公告)日：2022-08-31
申请号：EP20892880.4
申请日：2020-11-30
申请人： Huawei Technologies Co., Ltd.
发明人： ZHANG, Yawei , LYU, Jingfei , CHENG, Yong
IPC分类号： H04J3/06 , H04L12/24
摘要： This application discloses a method and a network device for locating a clock fault and relates to the communications field. In the method, the network device locates a clock fault source based on whether frequency offsets between a plurality of input clocks and a local clock exceed a frequency offset threshold, or based on whether frequency offsets between a plurality of input clocks exceed a relative frequency offset threshold. This can improve precision of detecting a frequency offset.

10. 发明公开

EP4311155A1 SOURCE SELECTION METHOD, APPARATUS, AND SYSTEM, AND STORAGE MEDIUM 审中-实审
公开(公告)号：EP4311155A1
公开(公告)日：2024-01-24
申请号：EP22831454.8
申请日：2022-05-12
申请人： Huawei Technologies Co., Ltd.
发明人： ZHANG, Yawei , LYU, Jingfei , HAO, Jianwu , CHEN, Songyan
IPC分类号： H04L7/00
摘要： This application provides a clock source selection method, apparatus, and system, and a storage medium, and belongs to the communication field. The method includes: After a first network device traces a clock of a second network device, when the first network device cannot trace the clock of the second network device, the first network device modifies a parameter value corresponding to a synchronization source selection parameter of the first network device to a first parameter value, where the first parameter value is superior to a parameter value corresponding to a synchronization source selection parameter of the second network device. In this application, a jump of a clock of a network device can be avoided.

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