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1. 发明公开

EP3863249A1 DATA SENDING METHOD AND APPARATUS, AND FLEXE SWITCHING SYSTEM 审中-公开
公开(公告)号：EP3863249A1
公开(公告)日：2021-08-11
申请号：EP18938640.2
申请日：2018-10-30
申请人： Huawei Technologies Co., Ltd.
发明人： DU, Wenhua , LIN, Tao , CHEN, Min , ZHANG, Feng
IPC分类号： H04L12/951
摘要： This application discloses a data sending method and apparatus, and a FlexE switching system. When slice packets received by a sending module include a SOP flag and a EOP flag of a same data packet, it indicates that the sending module receives a complete data packet, and immediately sends data packet slices, or sends the data packet slices after a latency of first preset duration. In this way, a stream inside the data packet is not interrupted, a data sending latency is reduced, and transmission efficiency is improved. When the slice packets received by the sending module include a SOP flag of a data packet but do not include a EOP flag of the data packet, it indicates that the sending module has not received a complete data packet, and then sends data packet slices after a latency of second preset duration longer than the first preset duration. Therefore, according to the data sending method provided in this application, different latency duration is set for data packets of different sizes, to reduce a data sending latency and improve transmission efficiency of a FlexE data stream.

2. 发明公开

EP3762762A1 DISPLAY DEVICE FOR HEAD-MOUNTING AND DISPLAY METHOD 有权
公开(公告)号：EP3762762A1
公开(公告)日：2021-01-13
申请号：EP18717869.4
申请日：2018-04-03
申请人： HUAWEI TECHNOLOGIES CO., LTD. , The Chancellor, Masters and Scholars of the University of Cambridge
发明人： LIN, Tao , ZHANG, Qing , JIA, Jia , SHRESTHA, Pawan , PRYN, Matt , CHU, Daping
IPC分类号： G02B27/00 , G02B27/01

3. 发明公开

EP3742746A1 METHOD AND DEVICE FOR REALIZING VIDEO SERVICE, AND COMMUNICATION SYSTEM AND COMPUTER-READABLE STORAGE MEDIUM 无效
公开(公告)号：EP3742746A1
公开(公告)日：2020-11-25
申请号：EP18905871.2
申请日：2018-12-27
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： CHEN, Jian , ZHANG, Jinhui , ZHU, Xia , XIONG, Jie , YANG, Rong , CHEN, Gang , LIN, Tao , XIA, Nu
IPC分类号： H04N21/647 , H04N21/24 , H04N21/238 , H04N21/234 , H04N21/231
摘要： This application discloses a method and device for implementing a video service, a communications system, and a computer-readable storage medium. The method includes: obtaining feature information of a video stream, where the feature information of the video stream includes information used to indicate a highest bit rate of the video stream; and determining a smooth rate based on the feature information of the video stream, where the smooth rate is not less than the highest bit rate of the video stream, and the smooth bit rate is used to determine a time interval at which a target device sends a data packet of the video stream to a video terminal. According to technical solutions of this application, a probability that a downstream device of the target device receives burst traffic may be effectively reduced, thereby reducing a packet loss on a caused by video traffic burst.

4. 发明公开

EP3691210A1 FLEXIBLE ETHERNET MESSAGE FORWARDING METHOD AND APPARATUS 有权
公开(公告)号：EP3691210A1
公开(公告)日：2020-08-05
申请号：EP18867645.6
申请日：2018-08-23
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： DU, Wenhua , LIU, Yongzhi , LIN, Tao , HU, Jun
IPC分类号： H04L12/931 , H04L12/935
摘要： Embodiments of this application disclose a flexible Ethernet frame forwarding method and apparatus, to provide a more flexible FlexE frame forwarding solution. The method includes: receiving a first frame through a FlexE client input channel; obtaining a first channel identifier used to indicate the FlexE client input channel and a first subchannel identifier carried in the first frame, where the first subchannel identifier is used to indicate a logical subchannel of the FlexE client input channel; searching a preset forwarding table based on the first channel identifier and the first subchannel identifier to obtain a second channel identifier and a second subchannel identifier, where the second channel identifier is used to indicate a FlexE client output channel, and the second subchannel identifier is used to indicate a logical subchannel of the FlexE client output channel; and forwarding the first frame based on the second channel identifier and the second subchannel identifier.

5. 发明公开

EP3694140A1 CLOCK SYNCHRONIZATION METHOD AND APPARATUS 审中-公开
公开(公告)号：EP3694140A1
公开(公告)日：2020-08-12
申请号：EP17930848.1
申请日：2017-10-30
申请人： Huawei Technologies Co., Ltd.
发明人： HE, Xiang , QI, Yunlei , CHEN, Jingfeng , LIN, Tao , SONG, Junmin , WANG, Xinyuan
IPC分类号： H04L7/00
摘要： This application provides a clock synchronization method, including: receiving, by a receiving apparatus, a plurality of data blocks by 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 by 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, and the second data block is a data block for sending timestamp sampling in the plurality of data blocks. In the clock synchronization method provided in this application, a skew that occurs between a plurality of data blocks of a same FlexE client after the plurality of data blocks arrive at a receiving apparatus can be corrected.

6. 发明公开

EP3054609A1 METHOD AND APPARATUS FOR TRANSMITTING 1588V2 PACKET BASED ON WAN INTERFACE 有权
标题翻译：方法和装置用于转移1588v2的程序包上WAN接口
公开(公告)号：EP3054609A1
公开(公告)日：2016-08-10
申请号：EP14859256.1
申请日：2014-08-11
申请人： Huawei Technologies Co., Ltd.
发明人： CHEN, Liqing , LIN, Tao
IPC分类号： H04J3/06 , H04L12/951
CPC分类号： H04J3/0667 , H04L12/2854 , H04L29/12575 , H04L45/745 , H04L61/6022 , H04L2012/5652
摘要： 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.
摘要翻译：本发明的实施例公开了WAN接口基于1588v2的分组传输的方法和设备，涉及通信技术领域，并能降低1588v2的分组传输的复杂性。该方法包括：首先，插入，由发送端，一个1588v2的分组到数据帧的净荷区，并发送，在接收端，携带1588分组中的数据帧; 然后，在接收，由接收端，数据帧没有由发送端发送的携带有1588包，并获取在其上接收所述数据帧的接收时间; 最后，执行，接收端上的接收时间，时间同步调整。本发明的实施例适用于网络间的1588v2分组传输。

7. 发明公开

EP3691175A1 METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING CLOCK SYNCHRONIZATION MESSAGE 审中-实审
公开(公告)号：EP3691175A1
公开(公告)日：2020-08-05
申请号：EP17928640.6
申请日：2017-10-13
申请人： Huawei Technologies Co., Ltd.
发明人： HE, Xiang , QI, Yunlei , CHEN, Jingfeng , LIN, Tao , SONG, Junmin , WANG, Xinyuan
IPC分类号： H04L7/00 , H04J3/06 , H04W56/00
摘要： 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, by the sending apparatus, a second clock synchronization packet carrying the sending timestamp; and sending, by the sending apparatus, the second clock synchronization packet. In this way, clock synchronization frequency is increased, a bandwidth that can be used for transmitting a clock synchronization packet is increased, and clock synchronization complexity is reduced.

8. 发明公开

EP3610317A1 DEVICE AND METHOD FOR GENERATING A 3D LIGHT FIELD 无效
公开(公告)号：EP3610317A1
公开(公告)日：2020-02-19
申请号：EP17719283.8
申请日：2017-04-26
申请人： Huawei Technologies Co., Ltd. , Cambridge Enterprise Limited
发明人： JIA, Jia , CHEN, Jhensi , CHU, Daping , ZHANG, Qing , LIN, Tao
IPC分类号： G02B27/01 , G02B27/22

9. 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.

10. 发明授权

EP3054609B1 METHOD AND APPARATUS FOR TRANSMITTING 1588V2 PACKET BASED ON WAN INTERFACE 有权
公开(公告)号：EP3054609B1
公开(公告)日：2019-01-09
申请号：EP14859256.1
申请日：2014-08-11
申请人： Huawei Technologies Co., Ltd.
发明人： CHEN, Liqing , LIN, Tao
IPC分类号： H04J3/06 , H04L12/951

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