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    Efficient network discovery in frequency hopping networks
    33.
    发明授权
    Efficient network discovery in frequency hopping networks 有权
    跳频网络中的有效网络发现

    公开(公告)号：US09281865B2

    公开(公告)日：2016-03-08

    申请号：US13272841

    申请日：2011-10-13

    Applicant: Jonathan W. Hui ,  Lik Chuen Alec Woo ,  Wei Hong

    Inventor： Jonathan W. Hui ,  Lik Chuen Alec Woo ,  Wei Hong

    IPC: H04B1/713

    CPC classification number: H04B1/713

    Abstract: In one embodiment, a device in a frequency hopping communication network transmits responsive beacon messages based on adaptive types of responsive beacon message transmission based on a number of received beacon requests within a given time period: the number below a threshold results in synchronized unicast messages; the number above the threshold results in unsynchronized broadcast messages. In another embodiment, the device suppresses unsolicited beacon message transmission based on a density-aware redundancy count of other unsolicited beacon message transmissions from neighboring devices. In another embodiment, the device may transmit unsolicited beacon messages according to an adaptive interval based on stability of the network. In another embodiment, the device may suppress transmission of a beacon request to join the communication network based on a density-aware redundancy count of other beacon requests from neighboring devices, and transmits beacon requests at an adaptive interval that increases in response to each unanswered beacon request.

    Abstract translation: 在一个实施例中，跳频​​通信网络中的设备基于在给定时间段内的接收到的信标请求的数量，基于自适应类型的响应信标消息传输来发送响应信标消息：低于阈值的数量导致同步的单播消息; 超过阈值的数字导致不同步的广播消息。 在另一实施例中，设备基于来自相邻设备的其他未经请求的信标消息传输的密度感知冗余计数来抑制主动信标消息传输。 在另一个实施例中，设备可以基于网络的稳定性，根据自适应间隔发送未经请求的信标消息。 在另一个实施例中，设备可以基于来自相邻设备的其他信标请求的密度感知冗余计数来抑制加入通信网络的信标请求的传输，并以响应于每个未​​应答信标而增加的自适应间隔发送信标请求 请求。

    Collecting power outage notifications in a frequency hopping communication network
    34.
    发明授权
    Collecting power outage notifications in a frequency hopping communication network 有权
    在跳频通信网络中收集停电通知

    公开(公告)号：US09001676B2

    公开(公告)日：2015-04-07

    申请号：US13192802

    申请日：2011-07-28

    Applicant: Jonathan W. Hui ,  Wei Hong ,  Lik Chuen Alec Woo

    Inventor： Jonathan W. Hui ,  Wei Hong ,  Lik Chuen Alec Woo

    IPC: G01R31/08 ,  H04B1/713

    CPC classification number: H04B1/713

    Abstract: In one embodiment, a device in a frequency hopping communication network operate in a first mode according to a common broadcast schedule for the network that simultaneously overlays a first configured portion of all independently determined unicast listening schedules in the network. In response to determining a power outage condition, the device switches to operation in a power outage mode where the common broadcast schedule for the network in the power outage mode simultaneously overlays a second configured portion of all independently determined unicast listening schedules in the network, the second configured portion greater than the first configured portion. In one embodiment, the device broadcasts one or more power outage notifications (PONs) in response to determining the power outage condition as a reduction of a main power supply at the device. In another embodiment, the device receives a PON while powered as the power outage condition.

    Abstract translation: 在一个实施例中，跳频​​通信网络中的设备根据网络的公共广播调度以第一模式操作，该网络同时覆盖网络中所有独立确定的单播监听时间表的第一配置部分。 响应于确定停电状况，设备切换到停电模式中的操作，其中停电模式下的网络的公共广播调度同时覆盖网络中所有独立确定的单播监听时间表的第二配置部分， 第二构造部分大于第一构造部分。 在一个实施例中，响应于将停电状况确定为设备上的主电源的减少，设备广播一个或多个断电通知（PON）。 在另一个实施例中，设备在停电状态下被接通时接收PON。

    Efficient use of dynamic host configuration protocol in low power and lossy networks
    35.
    发明授权
    Efficient use of dynamic host configuration protocol in low power and lossy networks 有权
    在低功耗和有损网络中有效利用动态主机配置协议

    公开(公告)号：US08819191B2

    公开(公告)日：2014-08-26

    申请号：US13180952

    申请日：2011-07-12

    Applicant: Jonathan W. Hui ,  Lik Chuen Alec Woo ,  Wei Hong

    Inventor： Jonathan W. Hui ,  Lik Chuen Alec Woo ,  Wei Hong

    IPC: G06F15/177

    CPC classification number: H04L41/0803 ,  H04L45/14 ,  H04L61/2015 ,  H04L61/6059

    Abstract: In one embodiment, each of a plurality of devices in a computer network is configured to i) transmit a unicasted dynamic host configuration protocol (DHCP) solicit message to a neighbor device having a route to a border router as an assumed DHCP relay without regard to location of a DHCP server, and ii) operate as a DHCP relay to receive unicasted DHCP solicit messages and relay the solicit message to the border router of the network without regard to location of the DHCP server, and to relay a DHCP reply to a corresponding requestor device.

    Abstract translation: 在一个实施例中，计算机网络中的多个设备中的每一个被配置为i）向具有到边界路由器的路由器的邻居设备传输单播动态主机配置协议（DHCP）请求消息作为假定的DHCP中继，而不考虑 DHCP服务器的位置，以及ii）作为DHCP中继来接收单播的DHCP请求消息，并将请求消息中继到网络的边界路由器，而不考虑DHCP服务器的位置，并将DHCP应答中继到相应的 请求者设备

    Authentication control in low-power lossy networks
    36.
    发明授权
    Authentication control in low-power lossy networks 有权
    低功耗有损网络中的认证控制

    公开(公告)号：US08806573B2

    公开(公告)日：2014-08-12

    申请号：US13206012

    申请日：2011-08-09

    Applicant: Atul Mahamuni ,  Navindra Yadav ,  Jonathan Hui ,  Alec Woo ,  Wei Hong

    Inventor： Atul Mahamuni ,  Navindra Yadav ,  Jonathan Hui ,  Alec Woo ,  Wei Hong

    IPC: H04L9/32

    CPC classification number: H04W12/06 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/22

    Abstract: Techniques are provided for the controlled scheduling of the authentication of devices in a lossy network, such as a mesh network. An authenticator device that is configured to authenticate devices in a lossy network receives an authentication start message from a particular device to be authenticated. The authenticator device determines a schedule for engaging in an authentication procedure for the particular device based on an indication of current network utilization.

    Abstract translation: 提供技术用于有损网络（例如网状网络）中的设备的认证的受控调度。 被配置为对有损网络中的设备进行认证的认证设备从特定设备接收认证开始消息以进行认证。 认证器设备基于当前网络利用率的指示来确定用于参与特定设备的认证过程的调度。

    System and method for storing communications intended for different groups using a limited amount of space
    39.
    发明授权
    System and method for storing communications intended for different groups using a limited amount of space 有权
    用于使用有限的空间存储针对不同组的通信的系统和方法

    公开(公告)号：US08327045B1

    公开(公告)日：2012-12-04

    申请号：US13465379

    申请日：2012-05-07

    Applicant: Alec Woo ,  David E. Culler

    Inventor： Alec Woo ,  David E. Culler

    IPC: G06F3/00 ,  G06F5/00 ,  G06F13/12 ,  G06F13/38

    CPC classification number: H04L12/189

    Abstract: A system and method stores wirelessly received communications for wireless retransmission, making space in a storage device, if necessary, by deleting any one or more communications corresponding to the same group as the received communication. If storage in the storage device remains insufficient, communications that have been previously retransmitted by that same device are deleted, according to one or more characteristics of such stored communications, such as age or number of times an instance of that communication has been received. If storage in the storage device remains insufficient, communications of a different group are deleted according to one or more characteristics of the stored communications.

    Abstract translation: 一种系统和方法存储用于无线重传的无线接收通信，如果需要，通过删除对应于与接收到的通信相同的组的任何一个或多个通信，在存储设备中留出空间。 如果存储设备中的存储保持不足，则根据该存储的通信的一个或多个特性，例如已经接收到该通信的实例的年龄或次数，删除先前由同一设备重新发送的通信。 如果存储设备中的存储保持不足，则根据存储的通信的一个或多个特性来删除不同组的通信。

    System and Method for Reliably Communicating Information Without Explicit Acknowledgments Including Retransmission of Older, Missed Commands
    40.
    发明申请
    System and Method for Reliably Communicating Information Without Explicit Acknowledgments Including Retransmission of Older, Missed Commands 有权
    可靠地传播信息的系统和方法，没有明确的鸣谢，包括重新传输较旧的，未命中的命令

    公开(公告)号：US20120202483A1

    公开(公告)日：2012-08-09

    申请号：US13366930

    申请日：2012-02-06

    Applicant: Alec Woo ,  David E. Culler

    Inventor： Alec Woo ,  David E. Culler

    IPC: H04W24/00

    CPC classification number: H04L1/1848 ,  H04L2001/0093 ,  H04L2001/0097

    Abstract: A system and method communicates commands from a command originator to receiving devices, yet the receiving devices do not confirm receipt of the command. The most current command (e.g. the one with the highest sequence number) is rebroadcast by the command originator and the receiving devices, tending to be more frequent upon detection of an event indicating that the most current command was not received by at least one other device, and less frequently upon detection of an event indicating that the most current command was provided with sufficient duplication that if another device could receive it, the device likely did receive it, subject to a maximum and minimum rate.

    Abstract translation: 系统和方法将命令从命令发起者传送到接收设备，但是接收设备不能确认接收到命令。 最新的命令（例如具有最高序列号的命令）由命令发起者和接收设备进行重播，在检测到表示最新命令没有被至少一个其他设备接收到的事件时更加频繁 ，并且在检测到指示最新的命令被提供足够的复制的事件之后较不频繁地发现，如果另一个设备可以接收到它，则该设备可能会以最大和最小速率进行接收。

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