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    Method for learning media access control address, network device, and system
    1.
    发明授权
    Method for learning media access control address, network device, and system 有权
    用于学习媒体访问控制地址，网络设备和系统的方法

    公开(公告)号：US09294399B2

    公开(公告)日：2016-03-22

    申请号：US14041154

    申请日：2013-09-30

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Xijin Tan ,  Shulei Ma

    IPC: H04L12/28 ,  H04L12/56 ,  H04L12/741 ,  H04L12/64 ,  H04L12/46 ,  H04L12/751 ,  H04L12/743

    CPC classification number: H04L45/745 ,  H04L12/4641 ,  H04L12/6418 ,  H04L45/08 ,  H04L45/7453

    Abstract: Embodiments of the present invention provide a method for learning a media access control address, a network device and a system. The method includes: generating a key value according to a key field of a received packet, and obtaining an index value corresponding to the key value according to the key value; performing a linear random iteration on the index value according to a preset number of iterations; searching, according to an iteration index value obtained during a first iteration, in a MAC address pool for a MAC address corresponding to the iteration index value obtained during the first iteration; and learning a MAC address of the packet according to a search result. By using the embodiments of the present invention a media access control address space may be fully utilized, and the problem of media access control address conflicts may be solved to the greatest extent.

    Abstract translation: 本发明的实施例提供了一种用于学习媒体访问控制地址，网络设备和系统的方法。 该方法包括：根据接收到的分组的密钥字段生成密钥值，并根据密钥值获得与密钥值对应的索引值; 根据预设的迭代次数对索引值执行线性随机迭代; 根据在第一次迭代期间获得的迭代索引值搜索与在第一次迭代期间获得的迭代索引值对应的MAC地址的MAC地址池; 并根据搜索结果学习分组的MAC地址。 通过使用本发明的实施例，可以充分利用媒体访问控制地址空间，并且可以最大程度地解决媒体访问控制地址冲突的问题。

    Method for retransmitting packet on wireless fidelity link and apparatus
    3.
    发明授权
    Method for retransmitting packet on wireless fidelity link and apparatus 有权

    公开(公告)号：US11445268B2

    公开(公告)日：2022-09-13

    申请号：US17005859

    申请日：2020-08-28

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Luyao Hu ,  Ziling Li ,  Xijin Tan ,  Yiming Wang ,  Yong Luo

    IPC: H04N21/6375 ,  H04L1/18 ,  H04N21/61 ,  H04N21/647

    Abstract: A method for retransmitting a packet on a wireless fidelity link includes receiving a packet retransmission request sent by a user terminal and determining a packet that needs to be retransmitted, detecting a downlink quality indicator on a gateway side of a first wireless fidelity link and a downlink quality indicator on a gateway side of a second wireless fidelity link, determining a link for retransmitting the packet, based on the downlink quality indicator on the gateway side of the first wireless fidelity link and the downlink quality indicator on the gateway side of the second wireless fidelity link, and sending, to the user terminal on the determined link for retransmitting the packet, the determined packet that needs to be retransmitted.

    Data transmission method and device
    4.
    发明授权
    Data transmission method and device 有权

    公开(公告)号：US11509597B2

    公开(公告)日：2022-11-22

    申请号：US17211466

    申请日：2021-03-24

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Zhigang Huang ,  Xijin Tan ,  Xiaoyang Qu ,  Jian Chen

    IPC: H04L47/6295 ,  H04L47/56 ,  H04W28/02 ,  H04W28/14 ,  H04W84/12

    Abstract: Embodiments of the application provide a data transmission method and a device. A sending device periodically obtains a first packet sequence number and a second packet sequence number. The first packet sequence number is a maximum value in packet sequence numbers respectively corresponding to packets that belong to a first data flow and that are received by a receiving device through a first data channel in a statistics period. The second packet sequence number is a maximum value in packet sequence numbers respectively corresponding to packets that belong to the first data flow and that are received by the receiving device through a second data channel in the statistics period. The sending device updates a packet cache queue of: the first data channel, the second data channel, or both the first and the second data channels, based on the first packet sequence number and the second packet sequence number.

    ECG Detection Method and Wearable Device
    5.
    发明申请
    ECG Detection Method and Wearable Device 有权

    公开(公告)号：US20220265197A1

    公开(公告)日：2022-08-25

    申请号：US17620480

    申请日：2020-06-17

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xijin Tan ,  Yi Xi ,  Shiyou Sun ,  Yi Hu

    IPC: A61B5/347 ,  A61B5/332 ,  A61B5/282 ,  A61B5/256 ,  A61B5/0531 ,  A61B5/11 ,  A61B5/00

    Abstract: An ECG detection method includes in a wearable device, a first electrode detects a first electrical signal and a second electrode detects a second electrical signal, a processor determines a frequency bandwidth based on a current status of the wearable device and/or a status of a user in contact with the first electrode and the second electrode, and the processor determines an electrocardiogram ECG based on an electrical signal that is in the first electrical signal and the second electrical signal and for which a frequency falls within the frequency bandwidth. The wearable device selects an appropriate frequency bandwidth based on the status of the wearable device and/or the status of the user in contact with the first electrode and the second electrode, and then obtains the ECG based on the frequency bandwidth.

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