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21. 发明授权

US08774050B2 Dynamic wake-up time adjustment based on designated paths through a computer network 有权
标题翻译：基于通过计算机网络的指定路径进行动态唤醒时间调整
公开(公告)号：US08774050B2
公开(公告)日：2014-07-08
申请号：US12942962
申请日：2010-11-09
申请人： Jean-Philippe Vasseur , Shmuel Shaffer , Sandeep Shetty
发明人： Jean-Philippe Vasseur , Shmuel Shaffer , Sandeep Shetty
IPC分类号： H04L12/28 , H04W84/18 , H04W40/00 , H04L29/06 , H04L29/08
CPC分类号： H04W84/18 , H04L12/12 , H04L29/06993 , H04L29/08027 , H04L29/08306 , H04L67/104 , H04W40/005 , H04W40/10 , H04W40/22 , Y02D70/142 , Y02D70/144 , Y02D70/22 , Y02D70/326 , Y02D70/39
摘要： In one embodiment, a computer network may include nodes and at least one root node. A first subset of the nodes may be located along a designated path (a directed acyclic graph (DAG)) through the computer network to the root node, where the first subset of nodes is configured to operate according to a first wake-up timer. A second subset of the nodes that are not along the designated path are in communication to at least one node of the first subset of nodes along the designated path, and operate according to a second wake-up timer that is longer than the first wake-up timer. In this manner, second subset of nodes may be awake less often, e.g., conserving energy.
摘要翻译：在一个实施例中，计算机网络可以包括节点和至少一个根节点。节点的第一子集可以沿着指定路径（有向非循环图（DAG））通过计算机网络定位到根节点，其中第一子节点被配置为根据第一唤醒定时器来操作。不沿着指定路径的节点的第二子集与沿着指定路径的第一节点子集的至少一个节点通信，并且根据比第一唤醒定时器长的第二唤醒定时器进行操作， up定时器。以这种方式，节点的第二子集可以较少地唤醒，例如节约能量。

22. 发明申请

US20120155284A1 Extendable Frequency Hopping Timeslots in Wireless Networks 有权
标题翻译：无线网络中可扩展的跳频时隙
公开(公告)号：US20120155284A1
公开(公告)日：2012-06-21
申请号：US12971205
申请日：2010-12-17
申请人： Shmuel Shaffer , Sandeep Jay Shetty , Jean-Philippe Vasseur
发明人： Shmuel Shaffer , Sandeep Jay Shetty , Jean-Philippe Vasseur
IPC分类号： H04W72/04 , H04L12/26 , H04W40/00
CPC分类号： H04W72/0446 , H04B1/713 , H04W28/06 , H04W72/00 , H04W84/18
摘要： In one embodiment, a wireless transmitting node in a frequency hopping wireless network may determine whether a packet can be transmitted within a particular timeslot of a frequency hopping sequence based on a length of the packet. If unable to transmit the packet within the particular timeslot, the transmitting node extends the particular timeslot into a subsequent timeslot to allow transmission of the packet within the extended timeslot at a frequency associated with the particular timeslot. Once the extended timeslot ends, the transmitting node and receiving node hop frequencies into the subsequent timeslot to synchronize with the rest of the network that already hopped at the conventional rate. In another embodiment, a wireless receiving node may also extend the particular timeslot into a subsequent timeslot to allow reception of a packet that would extend beyond the particular timeslot, and may hop frequencies upon expiration of the extended timeslot.
摘要翻译：在一个实施例中，跳频无线网络中的无线发射节点可以基于分组的长度来确定是否可以在跳频序列的特定时隙内发送分组。如果不能在特定时隙内发送分组，则发送节点将特定时隙扩展到随后的时隙中，以允许以与特定时隙相关联的频率在扩展时隙内传输分组。一旦扩展时隙结束，发射节点和接收节点将频率跳到随后的时隙中，以与以常规速率跳过的网络的其余部分同步。在另一个实施例中，无线接收节点还可以将特定时隙扩展到随后的时隙中，以允许接收超出特定时隙的分组，并且可以在扩展时隙到期时跳频。

23. 发明申请

US20120117438A1 Multicast Message Retransmission 有权
标题翻译：组播消息重传
公开(公告)号：US20120117438A1
公开(公告)日：2012-05-10
申请号：US12942977
申请日：2010-11-09
申请人： Shmuel Shaffer , Jean-Philippe Vasseur , Sandeep Jay Shetty
发明人： Shmuel Shaffer , Jean-Philippe Vasseur , Sandeep Jay Shetty
IPC分类号： H04L1/18 , G06F11/14
CPC分类号： H04L1/1825 , H04L1/1867 , H04L2001/0093 , H04L2001/0097
摘要： In one implementation, a method of distributing a multicast message in a wireless mesh network includes receiving a multicast message from a parent node of an intermediate node. The method includes transmitting the multicast message to child nodes of the intermediate node. The method includes storing the multicast message in a cache at the intermediate node. The method includes intercepting an acknowledgement message from each acknowledging child node within an acknowledging subset of less than all of the child nodes. The method includes accessing information indicating a population of the child nodes to which the multicast message transmission was directed. The method includes comparing the acknowledging subset of the child nodes with the population of the child nodes. The method includes identifying a non-acknowledging subset of less than all of the child nodes. The method includes retransmitting the multicast message to the non-acknowledging subset of the child nodes.
摘要翻译：在一个实现中，在无线网状网络中分发多播消息的方法包括从中间节点的父节点接收多播消息。该方法包括将多播消息发送到中间节点的子节点。该方法包括将多播消息存储在中间节点的高速缓存中。该方法包括从小于所有子节点的确认子集中截取来自每个确认子节点的确认消息。该方法包括访问指示多播消息传输所针对的子节点的总体的信息。该方法包括将子节点的确认子集与子节点的群体进行比较。该方法包括识别少于所有子节点的非确认子集。该方法包括将多播消息重传到子节点的非确认子集。

24. 发明申请

US20120113807A1 Affecting Node Association Through Load Partitioning 有权
标题翻译：通过负载分区影响节点关联
公开(公告)号：US20120113807A1
公开(公告)日：2012-05-10
申请号：US12942954
申请日：2010-11-09
申请人： Jean-Philippe Vasseur , Shmuel Shaffer , Sandeep Jay Shetty
发明人： Jean-Philippe Vasseur , Shmuel Shaffer , Sandeep Jay Shetty
IPC分类号： H04L12/56
CPC分类号： H04L47/726
摘要： In one embodiment, a node may request to join a parent node in a directed acyclic graph (DAG) in a computer network, and may also notify the parent node of a load associated with the request and whether the node has any other parent node options. The requesting node may then receive a response from the parent node that is either an acceptance or a denial. While the node may join the parent node in response to an acceptance, if a denial is received, the node may divide the load into first and second portions, and may re-request to join the parent node with the load of the first portion. In this manner, by partitioning the load, a load balancing mode of operation across multiple is parents in a DAG is provided.
摘要翻译：在一个实施例中，节点可以请求在计算机网络中的有向非循环图（DAG）中加入父节点，并且还可以向父节点通知与该请求相关联的负载以及节点是否具有任何其他父节点选项。然后，请求节点可以从父节点接收作为接受或拒绝的响应。当节点可以响应于接受而加入父节点时，如果接收到拒绝，节点可以将负载划分为第一和第二部分，并且可以重新请求以第一部分的负载加入父节点。以这种方式，通过划分负载，提供多个操作的负载平衡模式是DAG中的父节点。

25. 发明授权

US08891534B2 Redirecting traffic via tunnels to discovered data aggregators 有权
标题翻译：通过隧道将流量重定向到发现的数据聚合器
公开(公告)号：US08891534B2
公开(公告)日：2014-11-18
申请号：US13164708
申请日：2011-06-20
申请人： Jean-Philippe Vasseur , Shmuel Shaffer , Sandeep J Shetty
发明人： Jean-Philippe Vasseur , Shmuel Shaffer , Sandeep J Shetty
IPC分类号： H04W40/26 , H04W40/22 , H04W40/24
CPC分类号： H04L45/42 , H04L45/22 , H04W40/22 , H04W40/246 , H04W40/26
摘要： In one embodiment, a data aggregator discovery (DAD) message may be distributed by an associated data aggregator, the DAD message identifying the initiating data aggregator, and comprising a recorded route taken from the data aggregator to a receiving particular node as well as a total path cost for the particular node to reach a root node of the DAG through the recorded route and via the data aggregator. The receiving particular node determines a path cost increase (PCI) associated with use of the data aggregator based on the total path cost as compared to a DAG-based path cost for the particular node to reach the root node via the DAG. If the PCI is below a configured threshold, the particular node may redirect traffic to the data aggregator as source-routed traffic according to the recorded route. The traffic may then be aggregated by the data aggregator, accordingly.
摘要翻译：在一个实施例中，数据聚合器发现（DAD）消息可以由相关联的数据聚合器分发，DAD消息标识发起数据聚合器，并且包括从数据聚合器到接收特定节点的记录路由以及总数特定节点通过记录的路由并经由数据聚合器到达DAG的根节点的路径开销。与特定节点通过DAG到达根节点的基于DAG的路径开销相比，接收特定节点基于总路径开销来确定与数据聚合器的使用相关联的路径成本增加（PCI）。如果PCI低于配置的阈值，则特定节点可以根据记录的路由将流量重定向为数据聚合器作为源路由业务。因此，流量可以由数据聚合器进行聚合。

26. 发明授权

US08873526B2 Collision avoidance for wireless networks 有权
标题翻译：无线网络的避免碰撞
公开(公告)号：US08873526B2
公开(公告)日：2014-10-28
申请号：US12971540
申请日：2010-12-17
申请人： Shmuel Shaffer , Sandeep Jay Shetty , Jean-Philippe Vasseur
发明人： Shmuel Shaffer , Sandeep Jay Shetty , Jean-Philippe Vasseur
IPC分类号： H04W4/00 , H04W74/08 , H04L12/413 , H04W84/18 , H04W28/04
CPC分类号： H04W28/044 , H04L45/74 , H04L47/286 , H04W28/04 , H04W74/085 , H04W84/18
摘要： In one embodiment, a particular node in a wireless network may receive a wireless signal, and may determine whether the wireless signal is intended for itself In response to determining that the wireless signal is intended for the particular node, the particular node may transmit a non-colliding wireless carrier sense detected alert (CSDA) signal during the received wireless signal to request that other nodes within communication distance of the particular node refrain from transmitting for a duration of the received wireless signal. In another embodiment, a node listens on a first frequency for a wireless CSDA signal regarding a second (colliding) frequency, and in response to receiving a CSDA signal, may refrain from transmitting a wireless signal on the second frequency for the particular duration, or else (if not receiving a CSDA signal), may allow transmission of a wireless signal on the second frequency, accordingly.
摘要翻译：在一个实施例中，无线网络中的特定节点可以接收无线信号，并且可以确定无线信号是否为自己。响应于确定无线信号是针对特定节点，特定节点可以发送非 - - 在接收到的无线信号期间， - 聚合无线载波侦听警报（CSDA）信号，以请求特定节点的通信距离内的其他节点在所接收的无线信号的持续时间内不发射。在另一个实施例中，节点在第一频率上侦听关于第二（冲突）频率的无线CSDA信号，并且响应于接收到CSDA信号可以避免在特定持续时间内在第二频率上发送无线信号，或否则（如果没有接收到CSDA信号），则可以允许相应地在第二频率上发送无线信号。

27. 发明授权

US08756449B2 Phase-based operation of devices on a polyphase electric distribution system 有权
标题翻译：多相配电系统设备的相位操作
公开(公告)号：US08756449B2
公开(公告)日：2014-06-17
申请号：US13043213
申请日：2011-03-08
申请人： Shmuel Shaffer , Jean-Philippe Vasseur , Sandeep Jay Shetty
发明人： Shmuel Shaffer , Jean-Philippe Vasseur , Sandeep Jay Shetty
IPC分类号： G06F1/26
CPC分类号： G06F1/26 , G01R29/16 , G01R29/18 , H02J3/14 , H02J3/26 , Y02B70/3225 , Y02E40/50 , Y04S20/222
摘要： In one embodiment, a device in a computer network monitors an alternating-current (AC) waveform of an electrical power source at the device, where the power source is part of a polyphase power source system. Once the device determines a particular phase of the polyphase power source system at the device, then the device joins a directed acyclic graph (DAG) specific to the particular phase. In another embodiment, a device detects a time of a zero crossing of the AC waveform, and may then determine a particular phase of the polyphase power source system at the device based on the time of the zero crossing relative to a corresponding location within a frequency hopping superframe of the computer network.
摘要翻译：在一个实施例中，计算机网络中的设备监视设备处的电源的交流（AC）波形，其中电源是多相电源系统的一部分。一旦器件确定器件上的多相电源系统的特定相位，器件将连接特定相位的有向非循环图（DAG）。在另一个实施例中，设备检测AC波形的过零时间，然后可以基于相对于频率内的对应位置的过零点的时间来确定设备处的多相电源系统的特定相位跳台超级计算机网络。

28. 发明授权

US08631101B2 Dynamic address assignment for address aggregation in low power and lossy networks 有权
标题翻译：低功耗和有损网络中地址聚合的动态地址分配
公开(公告)号：US08631101B2
公开(公告)日：2014-01-14
申请号：US12942979
申请日：2010-11-09
申请人： Shmuel Shaffer , Pascal Thubert , Patrick Wetterwald , Jean-Philippe Vasseur
发明人： Shmuel Shaffer , Pascal Thubert , Patrick Wetterwald , Jean-Philippe Vasseur
IPC分类号： G06F15/177
CPC分类号： H04L41/0816 , H04L29/12254 , H04L29/12273 , H04L29/12933 , H04L41/085 , H04L61/2038 , H04L61/2053 , H04L61/6068 , H04W8/26 , H04W40/248 , Y02D70/142 , Y02D70/144 , Y02D70/22 , Y04S40/162
摘要： A node in a Low power and Lossy Network (LLN) is managed by monitoring a routing configuration on a node in a LLN. A triggering parameter that is used to invoke an address change on a child node is tracked and a threshold against which to compare the triggering parameter is accessed. The triggering parameter is compared to the threshold. Based on results of comparing the triggering parameter to the threshold, it is determined that an address change at the child node is appropriate. An address change of a child node appearing in the routing configuration is invoked based on the determination that an address change is appropriate.
摘要翻译：低功耗和有损网络（LLN）中的节点通过监视LLN中节点上的路由配置进行管理。跟踪用于调用子节点上的地址更改的触发参数，并访问与之对比的触发参数的阈值。将触发参数与阈值进行比较。基于将触发参数与阈值进行比较的结果，确定子节点处的地址变化是适当的。基于地址改变的确定，调用出现在路由配置中的子节点的地址变化。

29. 发明授权

US08583978B2 Multicast message retransmission 有权
标题翻译：组播消息重传
公开(公告)号：US08583978B2
公开(公告)日：2013-11-12
申请号：US12942977
申请日：2010-11-09
申请人： Shmuel Shaffer , Jean-Philippe Vasseur , Sandeep Jay Shetty
发明人： Shmuel Shaffer , Jean-Philippe Vasseur , Sandeep Jay Shetty
IPC分类号： G06F11/00
CPC分类号： H04L1/1825 , H04L1/1867 , H04L2001/0093 , H04L2001/0097
摘要： In one implementation, a method of distributing a multicast message in a wireless mesh network includes receiving a multicast message from a parent node of an intermediate node. The method includes transmitting the multicast message to child nodes of the intermediate node. The method includes storing the multicast message in a cache at the intermediate node. The method includes intercepting an acknowledgement message from each acknowledging child node within an acknowledging subset of less than all of the child nodes. The method includes accessing information indicating a population of the child nodes to which the multicast message transmission was directed. The method includes comparing the acknowledging subset of the child nodes with the population of the child nodes. The method includes identifying a non-acknowledging subset of less than all of the child nodes. The method includes retransmitting the multicast message to the non-acknowledging subset of the child nodes.
摘要翻译：在一个实现中，在无线网状网络中分发多播消息的方法包括从中间节点的父节点接收多播消息。该方法包括将多播消息发送到中间节点的子节点。该方法包括将多播消息存储在中间节点的高速缓存中。该方法包括从小于所有子节点的确认子集中截取来自每个确认子节点的确认消息。该方法包括访问指示多播消息传输所针对的子节点的总体的信息。该方法包括将子节点的确认子集与子节点的群体进行比较。该方法包括识别少于所有子节点的非确认子集。该方法包括将多播消息重传到子节点的非确认子集。

30. 发明授权

US08406153B2 Affecting node association through load partitioning 有权
标题翻译：通过负载划分影响节点关联
公开(公告)号：US08406153B2
公开(公告)日：2013-03-26
申请号：US12942954
申请日：2010-11-09
申请人： Jean-Philippe Vasseur , Shmuel Shaffer , Sandeep Shetty
发明人： Jean-Philippe Vasseur , Shmuel Shaffer , Sandeep Shetty
IPC分类号： H04L12/28
CPC分类号： H04L47/726
摘要： In one embodiment, a node may request to join a parent node in a directed acyclic graph (DAG) in a computer network, and may also notify the parent node of a load associated with the request and whether the node has any other parent node options. The requesting node may then receive a response from the parent node that is either an acceptance or a denial. While the node may join the parent node in response to an acceptance, if a denial is received, the node may divide the load into first and second portions, and may re-request to join the parent node with the load of the first portion. In this manner, by partitioning the load, a load balancing mode of operation across multiple is parents in a DAG is provided.
摘要翻译：在一个实施例中，节点可以请求在计算机网络中的有向非循环图（DAG）中加入父节点，并且还可以向父节点通知与该请求相关联的负载以及节点是否具有任何其他父节点选项。然后，请求节点可以从父节点接收作为接受或拒绝的响应。当节点可以响应于接受而加入父节点时，如果接收到拒绝，节点可以将负载划分为第一和第二部分，并且可以重新请求以第一部分的负载加入父节点。以这种方式，通过划分负载，提供多个操作的负载平衡模式是DAG中的父节点。

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