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    COMMUNICATION METHOD FOR WIRELESS FIDELITY WI-FI SYSTEM AND APPARATUS
    1.
    发明公开
    COMMUNICATION METHOD FOR WIRELESS FIDELITY WI-FI SYSTEM AND APPARATUS 审中-公开

    公开(公告)号：US20240259124A1

    公开(公告)日：2024-08-01

    申请号：US18623763

    申请日：2024-04-01

    申请人： HUAWEI TECHNOLOGIES CO., LTD.

    发明人： Baoyu Sun ,  Yongli Yan ,  Wei Ruan

    IPC分类号： H04J3/06 ,  H04L1/00 ,  H04W84/12

    CPC分类号： H04J3/0605 ,  H04L1/0003 ,  H04W84/12

    摘要： This application provides a communication method for a wireless fidelity Wi-Fi system and an apparatus, and relates to the field of communication technologies, to improve an anti-interference capability of an IoT device, and improve a coverage capability and a wall penetration capability. The communication method for a wireless fidelity Wi-Fi system includes: generating a Wi-Fi frame including a preamble, where a synchronization sequence of the preamble includes at least one extension code, and the extension code includes N symbols generated based on a Barker code, where N=α*M, M is a chip length of the Barker code, and α is a positive integer; and transmitting the Wi-Fi frame.

    Apparatus and method for synchronous hardware time stamping
    5.
    发明授权
    Apparatus and method for synchronous hardware time stamping 有权

    公开(公告)号：US09705619B2

    公开(公告)日：2017-07-11

    申请号：US14507520

    申请日：2014-10-06

    申请人： GarrettCom, Inc.

    发明人： Lee Harrell House ,  Ming-Hsin Kuo ,  Dileep Sivasankaran ,  Frank S. Madren

    IPC分类号： H04J3/06 ,  H04L12/56 ,  H04L12/875 ,  H04L12/54

    CPC分类号： H04J3/0605 ,  H04L12/56 ,  H04L47/56

    摘要： Methods and apparatus that may be used to provide timestamps to physical layer devices are provided. One method includes obtaining a time value from a clock associated with a physical layer device that is communicatively coupled to a primary data packet switch. The method further includes adding a processing time to the time value to generate a timestamp and transmitting the timestamp to a multiplexer circuit. The method further includes writing the timestamp in parallel from the multiplexer circuit to a plurality of external physical layer devices that are communicatively coupled to a secondary data packet switch and are located external to a housing of the secondary data packet switch.

    METHOD FOR TRANSMITTING USEFUL INFORMATION BETWEEN TWO TERMINALS AND METHOD FOR GENERATING AN ASSOCIATION TABLE USED IN THE CONTEXT OF THE TRANSMISSION
    7.
    发明申请
    METHOD FOR TRANSMITTING USEFUL INFORMATION BETWEEN TWO TERMINALS AND METHOD FOR GENERATING AN ASSOCIATION TABLE USED IN THE CONTEXT OF THE TRANSMISSION 有权
    用于发送两个终端之间的有用信息的方法和用于生成在传输语境中使用的协会表的方法

    公开(公告)号：US20150244483A1

    公开(公告)日：2015-08-27

    申请号：US14431700

    申请日：2013-10-01

    申请人： SIGFOX

    发明人： Marc Vertes ,  Cedric Artigue ,  Nicolas Chalbos

    IPC分类号： H04J3/06 ,  H04L7/04

    CPC分类号： H04J3/0605 ,  H04J3/0608 ,  H04L7/041 ,  H04L7/042

    摘要： A method for transmitting useful information between a transmitting terminal and a receiving terminal connected via a transmission channel. The transmitting terminal defines control information for the useful information, and searches in an association table, which is accessible from the transmitting terminal, for a frame-synchronization word associated with the control information. The transmitting terminal generates a frame of data from the useful information, and transmits, over the transmission channel, a data stream that includes the frame-synchronization word and the frame of data.

    摘要翻译： 一种用于在通过传输信道连接的发送终端和接收终端之间传送有用信息的方法。 发送终端定义有用信息的控制信息，并且在从发送终端可访问的关联表中搜索与控制信息相关联的帧同步字。 发送终端从有用信息生成数据帧，并通过传输信道发送包括帧同步字和数据帧的数据流。

    METHOD AND APPARATUS FOR DYNAMIC CONFIGURATION OF PACKET PREAMBLES FOR SYNCHRONIZATION-BASED TRANSMISSIONS
    8.
    发明申请
    METHOD AND APPARATUS FOR DYNAMIC CONFIGURATION OF PACKET PREAMBLES FOR SYNCHRONIZATION-BASED TRANSMISSIONS 审中-公开
    用于基于同步传输的分组前缀动态配置的方法和装置

    公开(公告)号：US20140269667A1

    公开(公告)日：2014-09-18

    申请号：US13833423

    申请日：2013-03-15

    申请人： QUALCOMM INCORPORATED

    发明人： Edward Harrison Teague ,  Qingjiang Tian ,  Gene Wesley Marsh ,  Arumugam Chendamarai Kannan

    IPC分类号： H04W56/00

    CPC分类号： H04W56/0065 ,  H04J3/0605 ,  H04W56/0035

    摘要： Various aspects of the disclosed approach described herein allows a reduction of preamble overhead by tailoring transmitted packet preambles based on an expected level of clock-related offset between a transmitter and a receiver for a pair of communicating nodes. An estimate may be maintained at the transmitter of maximum time and frequency offsets between the transmitter and the receiver. The estimate may then be utilized to create a customized preamble sequence for generating the packet preamble. The estimate may also be utilized to select a particular modulation technique for the packet preamble.

    摘要翻译： 本文描述的所述方法的各个方面允许通过基于用于一对通信节点的发射机和接收机之间的时钟相关偏移的期望水平来调度所发送的分组前同步码来减少前导开销。 可以在发射机和发射机之间的最大时间和频率偏移的发射机处保持估计。 然后可以利用该估计来创建用于生成分组前同步码的定制前同步码序列。 估计还可以用于为分组前导码选择特定的调制技术。

    Methods and devices for performing synchronization and compensating clock drift among communication devices
    9.
    发明授权
    Methods and devices for performing synchronization and compensating clock drift among communication devices 有权
    用于在通信设备之间执行同步和补偿时钟漂移的方法和设备

    公开(公告)号：US08737379B2

    公开(公告)日：2014-05-27

    申请号：US13541295

    申请日：2012-07-03

    申请人： Nicolas Gresset ,  Jonathan Letessier

    发明人： Nicolas Gresset ,  Jonathan Letessier

    IPC分类号： H04J3/06

    CPC分类号： H04J3/0652 ,  H04J3/0605

    摘要： In order to perform synchronization and compensate clock drift among a plurality of communication devices interconnected to form a mesh communications network, all communication devices, except one given communication device, perform a first distributed consensus-based synchronization. The given communication device performs: obtaining a first correction information derived at least from a difference between a clock timing resulting from the first distributed consensus-based synchronization and a reference clock timing; and transmitting the first correction information through the mesh communications network. All the communication devices, except said given communication device, further perform updating the clock timing resulting from the first distributed consensus-based synchronization by taking into account the transmitted first correction information.

    摘要翻译： 为了执行同步并补偿互连以形成网状通信网络的多个通信设备之间的时钟漂移，除了一个给定的通信设备之外的所有通信设备执行第一分布式基于共享的同步。 给定的通信设备执行：获得至少从由第一分布式基于共享的同步得到的时钟定时与参考时钟定时之间的差导出的第一校正信息; 以及通过网状通信网络发送第一校正信息。 除了所述给定通信设备之外，所有通信设备进一步通过考虑所发送的第一校正信息来执行基于第一分布式基于共享的同步产生的时钟定时。

    Inducing protocol violations for identifying a stream of information
    10.
    发明授权
    Inducing protocol violations for identifying a stream of information 有权
    诱导违反协议以识别信息流

    公开(公告)号：US08699523B2

    公开(公告)日：2014-04-15

    申请号：US13195768

    申请日：2011-08-01

    申请人： Mark A. Gustlin

    发明人： Mark A. Gustlin

    IPC分类号： H04J3/24 ,  H04J3/04

    CPC分类号： H04J3/0605 ,  H04L1/0082

    摘要： In one embodiment, protocol violations of a particular protocol are induced at one or more predetermined intervals within a particular stream of information encoded according to the particular protocol in order to produce a marked particular stream of information for use in subsequent identification of the marked particular stream of information. The marked stream is multiplexed or otherwise communicated to a second device. The second device detects, and typically corrects, the induced protocol violations. And based on which stream of information included the induced protocol violations and the multiplexing/distribution pattern of the other streams of information, the second device can identify which stream is which and process or forward accordingly.

    摘要翻译： 在一个实施例中，在根据特定协议编码的特定信息流内以一个或多个预定间隔诱发特定协议的协议违反，以便产生标记的特定信息流，用于随后识别标记的特定流 的信息。 标记的流被复用或以其他方式传送到第二设备。 第二个设备检测并通常纠正诱发的协议违规。 并且基于哪个信息流包括感应协议违反和其他信息流的复用/分配模式，第二设备可以识别哪个流是相应地哪个和哪个和哪个进程或转发的。