公开(公告)号：US07844212B1

公开(公告)日：2010-11-30

申请号：US11906952

申请日：2007-10-03

Applicant: Alec Woo ,  David E Culler

Inventor： Alec Woo ,  David E Culler

IPC: H04H20/71

CPC classification number: H04H60/11 ,  H04L1/08 ,  H04L2001/0093

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。

公开(公告)号：US08990892B2

公开(公告)日：2015-03-24

申请号：US13176857

申请日：2011-07-06

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

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

IPC: H04L29/06 ,  H04W12/06

CPC classification number: H04L63/0884 ,  H04W12/06

Abstract: Techniques are provided for adaptive routing of authentication packets in a network, such as a wireless mesh network. At an authenticated device in the network, an authentication packet is received over the network from a device that is seeking authentication. The authentication packet is encapsulated for transmission in Layer 3 packets over an Internet Protocol (IP) tunnel to an authenticator device associated in the network. Similarly, for an authentication packet encapsulated in Layer 3 packets from the authenticator device over the IP tunnel, the authentication packet is decapsulated from the Layer 3 packets and transmitted over the network to the device seeking authentication.

Abstract translation: 提供技术用于网络中的认证分组的自适应路由选择，例如无线网状网络。 在网络中的认证设备上，通过网络从正在寻求认证的设备接收认证报文。 认证分组被封装以通过到网络中相关联的认证设备的因特网协议（IP）隧道在三层分组中传输。 类似地，对于通过IP隧道从认证设备封装在三层报文中的认证报文，认证报文从三层报文中解封装，并通过网络发送到寻求认证的设备。

公开(公告)号：US08959607B2

公开(公告)日：2015-02-17

申请号：US13196960

申请日：2011-08-03

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

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

IPC: H04L9/32 ,  H04L9/08 ,  H04L29/06 ,  H04W12/04 ,  H04W12/06 ,  H04W84/18

CPC classification number: H04L9/0819 ,  H04L9/0827 ,  H04L9/0833 ,  H04L9/088 ,  H04L9/0891 ,  H04L9/14 ,  H04L9/321 ,  H04L9/3273 ,  H04L63/065 ,  H04L63/068 ,  H04L63/0823 ,  H04L63/12 ,  H04L2209/24 ,  H04L2463/061 ,  H04W12/04 ,  H04W12/06 ,  H04W12/10 ,  H04W84/18

Abstract: According to one embodiment, techniques are provided to enable secure communication among devices in a mesh network using a group temporal key. An authenticator device associated with a mesh network stores a pairwise master key for each of a plurality of devices in a mesh network upon authentication of the respective devices. Using the pairwise master key, the authenticator device initiates a handshake procedure with a particular device in the mesh network to mutually derive a pairwise temporal key from the pairwise master key. The authenticator device encrypts and signs a group temporal key using the pairwise temporal key for the particular device and sends the group temporal key encrypted and signed with the pairwise temporal key to the particular device.

Abstract translation: 根据一个实施例，提供了使用组时间密钥来实现网状网络中的设备之间的安全通信的技术。 与网状网络相关联的认证装置在对各个装置进行认证时，为网状网络中的多个装置中的每一个存储成对的主密钥。 使用成对主密钥，认证器设备发起与网状网络中的特定设备的握手过程，以从成对主密钥互相导出成对的时间密钥。 认证器设备使用特定设备的成对时间密钥加密和签署组时间密钥，并将具有成对时间密钥加密和签名的组时间密钥发送到特定设备。

公开(公告)号：US08879604B2

公开(公告)日：2014-11-04

申请号：US13177132

申请日：2011-07-06

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

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

IPC: H04B1/713 ,  H04H20/71 ,  H04L12/18 ,  H04B1/7156 ,  H04W72/00 ,  H04H20/59

CPC classification number: H04W72/0446 ,  H04B1/7156 ,  H04H20/59 ,  H04L5/06 ,  H04L12/189 ,  H04W72/005 ,  H04W74/0808

Abstract: In one embodiment, a rendezvous request message is generated (e.g., by a sender) that specifies a channel C and a rendezvous time T for which a distributed message is to be transmitted in a frequency-hopping computer network. The rendezvous request message is then transmitted on one or more channels used in the computer network based on reaching a plurality of intended recipients of the distributed message with the rendezvous request message prior to rendezvous time T. Accordingly, the distributed message is then transmitted on channel C at rendezvous time T. In another embodiment, a device receives a rendezvous request message, and in response to determining to honor the rendezvous request message, listens for the distributed message on channel C at rendezvous time T.

Abstract translation: 在一个实施例中，生成会话请求消息（例如，由发送者），其指定要在跳频计算机网络中发送分布式消息的信道C和会合时间T. 然后，基于在会合时间T之前到达具有会合请求消息的分布式消息的多个预期接收者，在计算机网络中使用的一个或多个信道上发送会合请求消息。因此，分布式消息随后在信道 在另一个实施例中，设备接收会合请求消息，并且响应于确定尊重会合请求消息，在会合时间T在频道C上侦听分布式消息。

公开(公告)号：US08867544B2

公开(公告)日：2014-10-21

申请号：US13476716

申请日：2012-05-21

Applicant: Jonathan W. Hui ,  Alec Woo ,  David E. Culler

Inventor： Jonathan W. Hui ,  Alec Woo ,  David E. Culler

IPC: H04L12/28 ,  H04L12/705 ,  H04L12/721 ,  H04W40/00 ,  H04W24/08 ,  H04W40/14

CPC classification number: H04W40/04 ,  H04L45/121 ,  H04L45/122 ,  H04L45/18 ,  H04L45/26 ,  H04L45/34 ,  H04W24/08 ,  H04W40/00 ,  H04W40/125 ,  H04W40/14 ,  H04W40/22 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/34 ,  Y02D70/39

Abstract: A system and method adds and manages entries on a list of entries of routing information to allow the top entry to be used for routing to a destination corresponding to the list. Costs of a wireless link may be a function of the success rate experienced on that wireless link.

Abstract translation: 系统和方法添加和管理路由信息条目列表中的条目，以允许顶部条目用于路由到与列表相对应的目的地。 无线链路的成本可能是该无线链路上经历的成功率的函数。

公开(公告)号：US20130094536A1

公开(公告)日：2013-04-18

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。

公开(公告)号：US20130042301A1

公开(公告)日：2013-02-14

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: G06F21/20

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。

公开(公告)号：US20130028103A1

公开(公告)日：2013-01-31

申请号：US13190859

申请日：2011-07-26

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

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

IPC: H04L12/26

CPC classification number: H04W74/0808 ,  H04W4/38 ,  H04W74/085 ,  H04W74/0891 ,  H04W84/18

Abstract: In one embodiment, a transmitter in a communication network receives an indication of active transmission times of a receiver to which the transmitter attempts to reach with first transmissions, the active transmission times indicating respective times of second transmissions initiated by the receiver. Based on determining when the first transmissions occur, the transmitter may then compute a link reliability metric for a link from the transmitter to the receiver by excluding one or more of the first transmissions from the indicated active transmission times of the second transmissions. In one embodiment, the active transmission times are in the past and the reliability metric excludes any first transmissions in the past during those times, while in another embodiment the active transmission times are scheduled in the future and the reliability metric does not include any first transmissions since the first transmissions may be scheduled to avoid the active transmission times.

Abstract translation: 在一个实施例中，通信网络中的发射机接收发射机尝试通过第一次传输到达接收机的主动传输时间的指示，主动传输时间指示由接收机发起的第二传输的相应时间。 基于确定何时发生第一传输，然后发射机可以通过从指示的第二传输的主动传输时间排除一个或多个第一传输来计算从发射机到接收机的链路的链路可靠性度量。 在一个实施例中，主动传输时间是过去的，并且可靠性度量在那些时间期间排除过去的任何第一传输，而在另一个实施例中，将来调度有效传输时间，并且可靠性度量不包括任何第一传输 因为可以调度第一传输以避免主动传输时间。

公开(公告)号：US20130018993A1

公开(公告)日：2013-01-17

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

公开(公告)号：US08351844B2

公开(公告)日：2013-01-08

申请号：US13549700

申请日：2012-07-16

Applicant: Alec Woo ,  David E Culler

Inventor： Alec Woo ,  David E Culler

IPC: H04H20/71

CPC classification number: H04H60/11 ,  H04L1/08 ,  H04L2001/0093

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。