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    Overlaying receive schedules for energy-constrained devices in channel-hopping networks
    13.
    发明授权
    Overlaying receive schedules for energy-constrained devices in channel-hopping networks 有权
    在跳频网络中覆盖能量约束设备的接收时间表

    公开(公告)号：US09246845B2

    公开(公告)日：2016-01-26

    申请号：US13921680

    申请日：2013-06-19

    Applicant: Cisco Technology, Inc.

    Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

    IPC: H04W4/00 ,  H04L12/43 ,  H04L12/911 ,  H04B1/713 ,  H04W72/12 ,  H04B1/7156 ,  H04W84/18 ,  H04L29/08 ,  H04W72/04

    CPC classification number: H04W72/1263 ,  H04B1/713 ,  H04B1/7156 ,  H04L47/826 ,  H04L67/12 ,  H04L67/325 ,  H04W4/70 ,  H04W72/0446 ,  H04W84/18

    Abstract: In one embodiment, a time at which a first device in a frequency-hopping communication network is expected to transmit a data message is determined. A first schedule is then generated based on the determined time, and the first schedule is overlaid on a frequency-hopping schedule for a second device in the network. The first schedule defines a first timeslot during which the second device listens for the data message, while the frequency-hopping schedule defines second timeslots during which the second device listens for data messages from other devices in the network. Notably, a duration of the first timeslot is greater than respective durations of the second timeslots.

    Abstract translation: 在一个实施例中，确定跳频通信网络中的第一设备期望发送数据消息的时间。 然后基于所确定的时间生成第一调度，并且第一调度被叠加在网络中的第二设备的跳频调度上。 第一调度定义了第二设备在其中侦听数据消息的第一时隙，而跳频调度定义了第二时隙，在第二时隙期间，第二设备监听来自网络中的其他设备的数据消息。 值得注意的是，第一时隙的持续时间大于第二时隙的相应持续时间。

    REAL-TIME ROUTE SELECTION BASED-ON ESTIMATED TRANSMISSION OVERHEAD
    14.
    发明申请
    REAL-TIME ROUTE SELECTION BASED-ON ESTIMATED TRANSMISSION OVERHEAD 有权
    基于估计传输的实时路由选择

    公开(公告)号：US20160021009A1

    公开(公告)日：2016-01-21

    申请号：US14336623

    申请日：2014-07-21

    Applicant: Cisco Technology, Inc.

    Inventor： Jonathan W. Hui ,  Jean-Philippe Vasseur ,  Wei Hong

    IPC: H04L12/803 ,  H04L12/26 ,  H04L12/801

    CPC classification number: H04L43/0876 ,  H04L41/0823 ,  H04L45/123 ,  H04L47/11 ,  H04L47/125

    Abstract: In one embodiment, one or more neighboring nodes that neighbor a sending node in a channel-hopping network are determined. Each neighboring node has multiple channels on which a data packet can be received at a particular time according to a channel-hopping receive schedule. Then, a currently active channel of each neighboring node is determined, where a data packet can be received on the currently active channel at the current time. A channel quality of the currently active channel of each neighboring node is computed, and based on the computations, a transmission overhead is estimated for communicating with each neighboring node. A data packet can then be transmitted to io the neighboring node that provides a path that minimizes the estimated transmission overhead.

    Abstract translation: 在一个实施例中，确定与信道跳跃网络中的发送节点相邻的一个或多个相邻节点。 每个相邻节点具有多个信道，根据跳频接收调度，在特定时间可以在其上接收数据分组。 然后，确定每个相邻节点的当前活动信道，其中可以在当前时间在当前活动信道上接收数据分组。 计算每个相邻节点的当前活动信道的信道质量，并且基于计算，估计用于与每个相邻节点进行通信的传输开销。 然后可以将数据分组发送到邻近节点，该相邻节点提供使估计的传输开销最小化的路径。

    COMMUNICATION CHANNEL IDENTIFICATION IN A POWER LINE COMMUNICATION NETWORK
    15.
    发明申请
    COMMUNICATION CHANNEL IDENTIFICATION IN A POWER LINE COMMUNICATION NETWORK 有权
    电力线通信网络中的通信信道识别

    公开(公告)号：US20150318891A1

    公开(公告)日：2015-11-05

    申请号：US14267374

    申请日：2014-05-01

    Applicant: Cisco Technology, Inc.

    Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

    IPC: H04B3/32 ,  H04B17/309 ,  H04B3/54

    CPC classification number: H04B3/32 ,  H04B3/487 ,  H04B3/54 ,  H04B17/309 ,  H04B2203/5425 ,  H04B2203/5466

    Abstract: In one embodiment, a device in a network receives a message from a neighboring device that identifies the electrical phase on which the message was sent. Crosstalk is identified between the device and the neighboring device by determining that the message was received on a different electrical phase than the phase on which the message was sent. One or more distinct communication channels between the device and the neighboring device are identified based on the identified crosstalk with each communication channel including or more electrical phases.

    Abstract translation: 在一个实施例中，网络中的设备从相邻设备接收标识消息被发送的电相位的消息。 通过确定在与发送消息的阶段不同的电相位上接收到消息，在设备和相邻设备之间识别串扰。 基于所识别的每个通信信道包括或多个电相位的通信信道来识别设备和相邻设备之间的一个或多个不同的通信信道。

    Multiple topology routing architecture in computer networks
    16.
    发明授权
    Multiple topology routing architecture in computer networks 有权
    计算机网络中的多种拓扑路由架构

    公开(公告)号：US09172613B2

    公开(公告)日：2015-10-27

    申请号：US13960701

    申请日：2013-08-06

    Applicant: Cisco Technology, Inc.

    Inventor： Jonathan W. Hui ,  Jean-Philippe Vasseur ,  Wei Hong

    IPC: H04L12/26 ,  H04L12/24 ,  H04W40/12 ,  H04W40/24 ,  H04L12/751 ,  H04W40/30 ,  H04W88/06

    CPC classification number: H04L45/02 ,  H04L41/12 ,  H04L45/121 ,  H04L45/125 ,  H04L45/306 ,  H04L45/48 ,  H04W40/12 ,  H04W40/246 ,  H04W40/30 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/34

    Abstract: In a multiple interface, low power and lossy network comprising a plurality of nodes, a low transmission power and medium transmission power topology are defined for the network and a channel-hopping schedule is defined for the devices operating in each topology. A sender determines that data is capable of being transmitted via a link on the low transmission power topology. The sender determines the transmission parameters for the transmission of the data over the link on the low transmission power topology and determines a low transmission power channel for transmission of the data. The sender transmits the determined channel and the transmission parameters to the receiver. The sender transmits the data via the determined channel in the low transmission power topology.

    Abstract translation: 在包括多个节点的多接口，低功率和有损网络中，针对网络定义了低发射功率和中等传输功率拓扑，并为每个拓扑中运行的设备定义了跳频调度。 发送方确定数据能够通过低传输功率拓扑上的链路传输。 发送方确定通过低传输功率拓扑上的链路传输数据的传输参数，并确定用于传输数据的低传输功率信道。 发送方将确定的信道和传输参数发送到接收机。 发送方通过低传输功率拓扑中的确定信道发送数据。

    Seamless multipath retransmission using source-routed tunnels
    17.
    发明授权
    Seamless multipath retransmission using source-routed tunnels 有权
    使用源路由隧道进行无缝多路径重传

    公开(公告)号：US09154370B2

    公开(公告)日：2015-10-06

    申请号：US13669210

    申请日：2012-11-05

    Applicant: Cisco Technology, Inc.

    Inventor： Jonathan W. Hui ,  Jean-Philippe Vasseur ,  Wei Hong

    IPC: H04L12/66 ,  H04L29/14

    CPC classification number: H04L45/28 ,  H04L29/14 ,  H04L45/20 ,  H04L45/22 ,  H04L45/34 ,  H04L49/25 ,  H04L61/2592 ,  H04L69/22 ,  H04L2212/00

    Abstract: In one embodiment, a device receives a destination unreachable message originated by a particular node along a first source route, the message carrying an encapsulated packet as received by the particular node. In response, the device may determine a failed link along the first source route based on a tunnel header and the particular node. Once determining an alternate source route without the failed link, the device may re-encapsulate and re-transmit the original packet on an alternate source route with a new tunnel header indicating the alternate source route (e.g., and a new hop limit count for the tunnel header and an adjusted hop limit count in the original packet).

    Abstract translation: 在一个实施例中，设备从第一源路由接收由特定节点发起的目的地不可达消息，该消息携带由特定节点接收的封装分组。 作为响应，设备可以基于隧道报头和特定节点来确定沿着第一源路由的故障链路。 一旦确定了没有故障链路的替代源路由，设备可以在备用源路由上重新封装并重新发送原始分组，其中新的隧道报头指示替代源路由（例如，并且新的跳数限制计数为 隧道报头和原始分组中的调整跳频限制计数）。

    PHASE DETERMINATION IN SMART GRID NETWORKS
    18.
    发明申请
    PHASE DETERMINATION IN SMART GRID NETWORKS 有权
    智能网络网络中的相位确定

    公开(公告)号：US20150200713A1

    公开(公告)日：2015-07-16

    申请号：US14154127

    申请日：2014-01-13

    Applicant: Cisco Technology, Inc.

    Inventor： Jonathan W. Hui ,  Wei Hong

    IPC: H04B3/54 ,  H04L12/28 ,  H04L29/08

    CPC classification number: H04B3/544 ,  H02J3/26 ,  H02J13/0013 ,  H02J13/002 ,  H04L12/2803 ,  H04L67/12 ,  H04L2012/2843 ,  Y02E40/50 ,  Y02E60/7807 ,  Y02E60/7892 ,  Y04S40/12 ,  Y04S40/146

    Abstract: In a multiple interface, low power and lossy network comprising multiple nodes, a root phase device obtains phase differential and absolute phase information from the devices in various network paths. Each device in a network path determines the differential phase data compared to its parent device in a network path. The device transmits the differential phase data to the parent device. The parent device transmits the differential phase data up the network path toward the root phase device. The root phase device collects the differential phase data and transmits the data to a central device. The central device determines the absolute phase of all devices. The root phase device can propagate absolute phase information to all devices within the network. Each device determines the absolute phase data by comparing the phase data of the device with the absolute phase data. The phase data is transmitted to a central device.

    Abstract translation: 在包括多个节点的多接口，低功率和有损网络中，根相设备从各种网络路径中的设备获取相位差和绝对相位信息。 网络路径中的每个设备确定与网络路径中的其父设备相比较的差分相位数据。 设备将差分相位数据发送到父设备。 父设备将网络路径上的差分相位数据发送到根相设备。 根相设备收集差分相位数据并将数据发送到中央设备。 中央设备确定所有设备的绝对相位。 根相设备可以将绝对相位信息传播到网络中的所有设备。 每个器件通过将器件的相位数据与绝对相位数据进行比较来确定绝对相位数据。 相位数据被发送到中央设备。

    OVERLAYING RECEIVE SCHEDULES FOR ENERGY-CONSTRAINED DEVICES IN CHANNEL-HOPPING NETWORKS
    19.
    发明申请
    OVERLAYING RECEIVE SCHEDULES FOR ENERGY-CONSTRAINED DEVICES IN CHANNEL-HOPPING NETWORKS 有权
    在通道网络中覆盖能量约束设备的覆盖时间表

    公开(公告)号：US20140376567A1

    公开(公告)日：2014-12-25

    申请号：US13921680

    申请日：2013-06-19

    Applicant: Cisco Technology, Inc.

    Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

    IPC: H04L12/911 ,  H04B1/713

    CPC classification number: H04W72/1263 ,  H04B1/713 ,  H04B1/7156 ,  H04L47/826 ,  H04L67/12 ,  H04L67/325 ,  H04W4/70 ,  H04W72/0446 ,  H04W84/18

    Abstract: In one embodiment, a time at which a first device in a frequency-hopping communication network is expected to transmit a data message is determined. A first schedule is then generated based on the determined time, and the first schedule is overlaid on a frequency-hopping schedule for a second device in the network. The first schedule defines a first timeslot during which the second device listens for the data message, while the frequency-hopping schedule defines second timeslots during which the second device listens for data messages from other devices in the network. Notably, a duration of the first timeslot is greater than respective durations of the second timeslots.

    Abstract translation: 在一个实施例中，确定跳频通信网络中的第一设备期望发送数据消息的时间。 然后基于所确定的时间生成第一调度，并且第一调度被叠加在网络中的第二设备的跳频调度上。 第一调度定义了第二设备在其中侦听数据消息的第一时隙，而跳频调度定义了第二时隙，在第二时隙期间，第二设备监听来自网络中的其他设备的数据消息。 值得注意的是，第一时隙的持续时间大于第二时隙的相应持续时间。

    RELIABLE BULK DATA DISSEMINATION USING RATELESS CODES
    20.
    发明申请
    RELIABLE BULK DATA DISSEMINATION USING RATELESS CODES 有权
    可靠的大容量数据显示使用无痕码

    公开(公告)号：US20140372585A1

    公开(公告)日：2014-12-18

    申请号：US13920802

    申请日：2013-06-18

    Applicant: Cisco Technology, Inc.

    Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

    IPC: H04L12/931

    CPC classification number: H04L49/20 ,  H03M13/3761 ,  H04L1/004 ,  H04L1/0076

    Abstract: In one embodiment, an aggregating node receives feedback messages from one or more destination nodes in the network. The destination nodes are designated to receive data as packets from a source node using rateless coding. Further, the feedback messages indicate whether packets are needed at a corresponding destination node to complete the data. Then, the feedback messages are aggregated into a single aggregated message, and the aggregated message is transmitted toward the source node.

    Abstract translation: 在一个实施例中，聚合节点从网络中的一个或多个目的地节点接收反馈消息。 目的地节点被指定为使用无编码编码从源节点接收数据作为数据包。 此外，反馈消息指示在相应目的地节点处是否需要分组来完成数据。 然后，将反馈消息聚合成单个聚合消息，并将聚合消息发送到源节点。

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