中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

7 records (took 0.011 seconds)

    Method for Setting Frequency Channels in a Multi-Hop Wireless Mesh Network
    1.
    发明申请
    Method for Setting Frequency Channels in a Multi-Hop Wireless Mesh Network 审中-公开
    在多跳无线网状网络中设置频道的方法

    公开(公告)号：US20140146857A1

    公开(公告)日：2014-05-29

    申请号：US14092450

    申请日：2013-11-27

    Applicant: SERCEL

    Inventor： Florent Guichard ,  Fabien Le Moine ,  Sophie Lostanlen-Nouy

    IPC: H04B1/7156

    CPC classification number: H04B1/7156 ,  H04B1/7143 ,  H04B2201/71338

    Abstract: A method for setting frequency channels in a multi-hop wireless mesh network including a plurality of nodes. Each node hops on frequency channels, with a hop period, according to a frequency channels hopping sequence. All data packets transmitted by the nodes have a duration strictly longer than the hop period. When a given node of the plurality of nodes is in a first transmit mode in order to transmit a data packet, it carries out steps of: selecting a transmit frequency channel as a function of the frequency channels hopping sequence; and transmitting the data packet using, for the entire duration of the data packet, the selected transmit frequency channel.

    Abstract translation: 一种用于在包括多个节点的多跳无线网状网络中设置频道的方法。 每个节点在频道上跳跃，具有跳频周期，根据频道跳频序列。 节点发送的所有数据包的持续时间长度大于跳数周期。 当多个节点的给定节点处于第一发射模式以便发送数据分组时，它执行以下步骤：选择作为频道跳频序列的函数的发射频道; 并且在所述数据分组的整个持续时间内，使用所选择的发送频率信道来发送所述数据分组。

    SLEEPY DEVICE OPERATION IN ASYNCHRONOUS CHANNEL HOPPING NETWORKS
    2.
    发明公开
    SLEEPY DEVICE OPERATION IN ASYNCHRONOUS CHANNEL HOPPING NETWORKS 审中-公开

    公开(公告)号：US20230223986A1

    公开(公告)日：2023-07-13

    申请号：US18185609

    申请日：2023-03-17

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： KUMARAN VIJAYASANKAR ,  ROBERT LIANG ,  JYOTHSNA KUNDURU ,  KWANG SEOP EOM

    IPC: H04W52/02 ,  H04B1/7156

    CPC classification number: H04W52/0274 ,  H04B1/7156 ,  H04B2201/71338

    Abstract: A radio communications device includes a RTC configured to run even during sleep for receiving from a coordinator node (CN) in an asynchronous channel hopping WPAN an asynchronous hopping sequence (AHS) frame that includes the CN's hopping sequence. A processor implements a stored sleepy device operation in asynchronous channel hopping networks algorithm. The algorithm is for determining a time stamp for the AHS frame and the CN's initial timing position within the hopping sequence, storing the time stamp, going to sleep and upon waking up changing a frequency band of its receive (Rx) channel to an updated fixed channel. A data request command frame is transmitted by the device on the CN's listening channel that is calculated from the CN's hopping sequence, time stamp, CN's initial timing position and current time, and the device receives an ACK frame transmitted by the CN at the updated fixed channel of Rx operation.

    METHOD FOR SETTING FREQUENCY CHANNELS IN A MULTI-HOP WIRELESS MESH NETWORK
    4.
    发明申请
    METHOD FOR SETTING FREQUENCY CHANNELS IN A MULTI-HOP WIRELESS MESH NETWORK 审中-公开
    在多层无线网络中设置频道的方法

    公开(公告)号：US20150372716A1

    公开(公告)日：2015-12-24

    申请号：US14842969

    申请日：2015-09-02

    Applicant: SERCEL

    Inventor： Florent GUICHARD ,  Fabien LE MOINE ,  Sophie LOSTANLEN-NOUY

    IPC: H04B1/7156 ,  H04B1/7143

    CPC classification number: H04B1/7156 ,  H04B1/7143 ,  H04B2201/71338

    Abstract: A method for setting frequency channels in a multi-hop wireless mesh network including a plurality of nodes. Each node hops on frequency channels, with a hop period, according to a frequency channels hopping sequence. All data packets transmitted by the nodes have a duration strictly longer than the hop period. When a given node of the plurality of nodes is in a first transmit mode in order to transmit a data packet, it carries out steps of: selecting a transmit frequency channel as a function of the frequency channels hopping sequence; and transmitting the data packet using, for the entire duration of the data packet, the selected transmit frequency channel.

    Abstract translation: 一种用于在包括多个节点的多跳无线网状网络中设置频道的方法。 每个节点在频道上跳跃，具有跳频周期，根据频道跳频序列。 节点发送的所有数据包的持续时间长度大于跳数周期。 当多个节点的给定节点处于第一发射模式以便发送数据分组时，它执行以下步骤：选择作为频道跳频序列的函数的发射频道; 并且在所述数据分组的整个持续时间内，使用所选择的发送频率信道来发送所述数据分组。

    SLEEPY DEVICE OPERATION IN ASYNCHRONOUS CHANNEL HOPPING NETWORKS
    5.
    发明公开
    SLEEPY DEVICE OPERATION IN ASYNCHRONOUS CHANNEL HOPPING NETWORKS 审中-公开

    公开(公告)号：US20240275428A1

    公开(公告)日：2024-08-15

    申请号：US18647678

    申请日：2024-04-26

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： KUMARAN VIJAYASANKAR ,  ROBERT LIANG ,  JYOTHSNA KUNDURU ,  KWANG SEOP EOM

    IPC: H04B1/7156 ,  H04W4/80 ,  H04W52/02

    CPC classification number: H04B1/7156 ,  H04W4/80 ,  H04W52/0235 ,  H04W52/0274 ,  H04B2001/71563 ,  H04B2201/71338 ,  Y02D30/70

    Abstract: A radio communications device includes a RTC configured to run even during sleep for receiving from a coordinator node (CN) in an asynchronous channel hopping WPAN an asynchronous hopping sequence (AHS) frame that includes the CN's hopping sequence. A processor implements a stored sleepy device operation in asynchronous channel hopping networks algorithm. The algorithm is for determining a time stamp for the AHS frame and the CN's initial timing position within the hopping sequence, storing the time stamp, going to sleep and upon waking up changing a frequency band of its receive (Rx) channel to an updated fixed channel. A data request command frame is transmitted by the device on the CN's listening channel that is calculated from the CN's hopping sequence, time stamp, CN's initial timing position and current time, and the device receives an ACK frame transmitted by the CN at the updated fixed channel of Rx operation.

    NETWORK DISCOVERY IN LOW-POWER AND LOSSY NETWORKS
    7.
    发明申请
    NETWORK DISCOVERY IN LOW-POWER AND LOSSY NETWORKS 有权
    网络发现在低功耗和低损耗网络中

    公开(公告)号：US20160150501A1

    公开(公告)日：2016-05-26

    申请号：US14551252

    申请日：2014-11-24

    Applicant: Cisco Technology, Inc.

    Inventor： Jonathan Hui ,  Wei Hong

    IPC: H04W72/00 ,  H04W76/00 ,  H04W68/00 ,  H04W4/06

    CPC classification number: H04W72/005 ,  H04B1/7156 ,  H04B2001/71563 ,  H04B2201/71338 ,  H04W4/06 ,  H04W68/005 ,  H04W72/1205 ,  H04W76/40 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/40

    Abstract: In one embodiment, a device in a network determines a first channel hopping schedule for the device to receive unicast communications from one or more neighbors of the device. The first channel hopping schedule differs from channel hopping schedules used by the one or more neighbors to receive unicast communications. The device determines a second channel hopping schedule for the device that includes a common channel that is common to the device and the one or more neighbors at any given point in time, wherein the second channel hopping schedule is self-generated by each of the device and the one or more neighbors. The device switches from the first channel hopping schedule to the second channel hopping schedule, in response to a network event. The device causes a particular neighbor to join the network using the second channel hopping schedule.

    Abstract translation: 在一个实施例中，网络中的设备确定用于设备从设备的一个或多个邻居接收单播通信的第一信道跳频调度。 第一个信道跳频计划与一个或多个邻居用于接收单播通信的信道跳频调度不同。 所述设备确定所述设备的第二信道跳频调度，所述第二信道跳频调度包括在任何给定时间点处所述设备和所述一个或多个邻居共用的公共信道，其中所述第二信道跳频调度是由所述设备中的每一个自身生成的 和一个或多个邻居。 响应于网络事件，设备从第一信道跳频调度切换到第二信道跳频调度。 该设备使得特定的邻居使用第二信道跳频调度来加入网络。

Patent Agency Ranking