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1. 发明公开

EP4044466A1 SYNCHRONIZATION METHOD AND DEVICE 审中-公开
公开(公告)号：EP4044466A1
公开(公告)日：2022-08-17
申请号：EP19949754.6
申请日：2019-10-22
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Yongzhi , LIN, Tao , LIU, Jianqiang , YUAN, Chun
IPC分类号： H04J3/06
摘要： Embodiments of this application disclose a synchronization method and a device. First, a device marks, based on a preset period, a periodic code block in a data bitstream to be sent from a MAC layer to a PHY layer, then sends the data bitstream to a peer device through the PHY layer, records a sending time of each periodic code block as a first timestamp during sending, and returns the first timestamp to the MAC layer. To be specific, by marking a timestamp for the periodic code block received from the MAC layer, the device sets a PHY-layer-based time reference scale (namely, the first timestamp) at the PHY layer. In this case, if a synchronization message needs to be sent to the peer device, because the time reference scale is a timestamp marked at the PHY layer, the device calculates, in real time by using the time reference scale, a time point at which the synchronization message is actually sent from the PHY layer (that is, a sending timestamp is marked), so that the time point at which the synchronization message is sent from the PHY layer can be obtained, a delay at the PHY layer is eliminated, and precision of the sending timestamp of the synchronization message (for example, a 1588 message) is improved.

2. 发明公开

EP4336752A1 DATA TRANSMISSION METHOD, APPARATUS, AND SYSTEM, AND COMPUTER-READABLE STORAGE MEDIUM 审中-实审
公开(公告)号：EP4336752A1
公开(公告)日：2024-03-13
申请号：EP23195321.7
申请日：2023-09-05
申请人： Huawei Technologies Co., Ltd.
发明人： ZHANG, Chengmin , QIU, Xianwen , LIU, Jianqiang , HE, Xiang
IPC分类号： H04J3/04 , H04J3/16
摘要： This application discloses a data transmission method. The method includes: performs bit multiplexing to obtain a plurality of third data streams based on a plurality of first data streams and a plurality of second data streams, where the first data stream and the second data stream belong to different virtual lane groups; and transmits the plurality of third data streams to a second module, to enable the second module to obtain a plurality of fourth data streams based on the plurality of third data streams, where any fourth data stream is obtained by performing bit multiplexing on any second quantity of third data streams in the plurality of third data streams. Bit multiplexing is performed on the obtained data streams, so that the method can improve a transmission rate of the data stream and reduce a frame loss ratio of a system.

3. 发明公开

EP4135242A1 METHOD AND APPARATUS FOR SWITCHING BETWEEN MAIN AND STANDBY LINKS, ELECTRONIC DEVICE, ROUTER, AND SWITCH 审中-实审
公开(公告)号：EP4135242A1
公开(公告)日：2023-02-15
申请号：EP20934127.0
申请日：2020-04-28
申请人： Huawei Technologies Co., Ltd.
发明人： SUN, Hongliang , CHEN, Jingfeng , LIU, Jianqiang
IPC分类号： H04L1/22
摘要： Embodiments of this disclosure provide a method and an apparatus for switching between main and backup links, an electronic device, a router, a switch, and a storage medium. The method includes: separately extracting an overhead frame in a main link and an overhead frame in a backup link; separately extracting attribute information of the overhead frame in the main link and attribute information of the overhead frame in the backup link, where the attribute information is used to represent quantities of times that the overhead frames appear in the main and backup links; and performing switching between the main and backup links after aligning the attribute information of the backup link with the attribute information of the main link. The attribute information of the overhead frame in the main link and the attribute information of the overhead frame in the backup link are first determined, and then the attribute information of the overhead frame in the backup link is aligned with the attribute information of the overhead frame in the main link, so that switching is performed between the main and backup links when the overhead frames in the main and backup links have same attribute information, thereby implementing "hitless switching" to reduce service impairment time caused by switching between the main and backup links as much as possible in a switching process, and implementing fast recovery of data transmission.

4. 发明公开

EP4440015A1 SENDING METHOD AND APPARATUS, RECEIVING METHOD AND APPARATUS, SYSTEM, DEVICE, AND STORAGE MEDIUM 审中-公开
公开(公告)号：EP4440015A1
公开(公告)日：2024-10-02
申请号：EP22909562.5
申请日：2022-11-09
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Yongzhi , LU, Yuchun , LI, Liang , MA, Lin , QIU, Xianwen , LIU, Jianqiang , DING, Li , ZHANG, Chengmin
IPC分类号： H04L1/00
CPC分类号： H04L1/00
摘要： This application discloses a sending method, a receiving method, an apparatus, a system, a device, and a storage medium. The receiving method includes: obtaining an encoded data block, where the encoded data block includes a plurality of data blocks, a plurality of first parity bits, and an FEC parity bit, the plurality of first parity bits are in one-to-one correspondence with the plurality of data blocks, and the FEC parity bit corresponds to the plurality of data blocks; and then checking the corresponding data blocks based on the plurality of first parity bits and/or the FEC parity bit, to obtain a decoding result of the encoded data block. The method can not only retain an error correction capability of a high-gain FEC code, but also reduce impact of high-gain FEC on a latency, so that requirements for a low latency and an FEC high gain can be met at the same time.

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