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11. 发明申请

US20120155511A1 Dynamic Assignment of Frequency Hopping Sequences in a Communication Network 有权
标题翻译：通信网络中跳频序列的动态分配
公开(公告)号：US20120155511A1
公开(公告)日：2012-06-21
申请号：US12971284
申请日：2010-12-17
申请人： Shmuel Shaffer , Sandeep Jay Shetty , Charles Okwudiafor , Jean-Philippe Vasseur
发明人： Shmuel Shaffer , Sandeep Jay Shetty , Charles Okwudiafor , Jean-Philippe Vasseur
IPC分类号： H04B1/713
CPC分类号： H04B1/7156 , H04B1/713 , H04B1/7143 , H04B2001/71563 , H04W72/0453
摘要： In one embodiment, a management device determines a topology of nodes in a network. Based on the topology, frequency hopping sequences are assigned (and notified) to the nodes such that each particular node of a certain set of the nodes is assigned a frequency hopping sequence on which to transmit that is different than frequency hopping sequences of neighbors and hidden neighbors of that particular node. In another embodiment, a transmitting node first transmits a transmission indication signal on its particular frequency band based on its frequency hopping sequence, and then transmits a message on the particular frequency band. In a further embodiment, a receiving node listening to a plurality of frequency bands may detect the transmission indication signal on the particular frequency band. In response, the receiving node filters out all frequency bands other than the particular frequency band, and receives the following transmission on that particular frequency band.
摘要翻译：在一个实施例中，管理设备确定网络中的节点的拓扑。基于拓扑结构，向节点分配（并通知）跳频序列，使得特定节点集合的每个特定节点被分配与其相邻的跳频序列不同的发射跳频序列，并且被隐藏该特定节点的邻居。在另一个实施例中，发送节点首先基于其跳频序列在其特定频带上发送传输指示信号，然后在特定频带上发送消息。在另一个实施例中，收听多个频带的接收节点可以检测特定频带上的传输指示信号。作为响应，接收节点滤除除了特定频带之外的所有频带，并在该特定频带上接收以下传输。

12. 发明授权

US09001669B2 Remote stitched directed acyclic graphs 有权
标题翻译：远程缝合定向非循环图
公开(公告)号：US09001669B2
公开(公告)日：2015-04-07
申请号：US13043111
申请日：2011-03-08
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： H04J3/14 , H04W40/22 , H04L29/08 , H04L12/26 , H04L12/707 , H04L12/753
CPC分类号： H04W40/22 , H04L43/0823 , H04L43/16 , H04L45/24 , H04L45/48 , H04L67/12 , Y04S40/168
摘要： In one embodiment, in response to a trigger condition being detected at a particular location in a primary directed acyclic graph (DAG) in a computer network, a particular node in the primary DAG at the particular location may be determined to act as a remote stitched (RS)-DAG root for an RS-DAG at the particular location. The determined RS-DAG root may then be instructed to initiate the RS-DAG, the instructing indicating one or more properties for the RS-DAG that are based on the trigger condition and that are different from properties of the primary DAG. In another embodiment, a particular node receives instructions to initiate an RS-DAG as its RS-DAG root, initiates the RS-DAG, and relays messages of the RS-DAG with a primary root of the primary DAG.
摘要翻译：在一个实施例中，响应于在计算机网络中的主要有向非循环图（DAG）中的特定位置处检测到触发条件，特定位置处的主DAG中的特定节点可以被确定为用作远程缝合（RS）-DAG根在特定位置的RS-DAG。然后可以指示确定的RS-DAG根以启动RS-DAG，指示基于触发条件指示RS-DAG的一个或多个属性，并且不同于主DAG的属性。在另一个实施例中，特定节点接收指令以发起RS-DAG作为其RS-DAG根，发起RS-DAG，并用主DAG的主根中继RS-DAG的消息。

13. 发明授权

US08780953B2 Dynamic assignment of frequency hopping sequences in a communication network 有权
标题翻译：通信网络中跳频序列的动态分配
公开(公告)号：US08780953B2
公开(公告)日：2014-07-15
申请号：US12971284
申请日：2010-12-17
申请人： Shmuel Shaffer , Sandeep Jay Shetty , Charles Okwudiafor , Jean-Philippe Vasseur
发明人： Shmuel Shaffer , Sandeep Jay Shetty , Charles Okwudiafor , Jean-Philippe Vasseur
IPC分类号： H04B1/00
CPC分类号： H04B1/7156 , H04B1/713 , H04B1/7143 , H04B2001/71563 , H04W72/0453
摘要： In one embodiment, a management device determines a topology of nodes in a network. Based on the topology, frequency hopping sequences are assigned (and notified) to the nodes such that each particular node of a certain set of the nodes is assigned a frequency hopping sequence on which to transmit that is different than frequency hopping sequences of neighbors and hidden neighbors of that particular node. In another embodiment, a transmitting node first transmits a transmission indication signal on its particular frequency band based on its frequency hopping sequence, and then transmits a message on the particular frequency band. In a further embodiment, a receiving node listening to a plurality of frequency bands may detect the transmission indication signal on the particular frequency band. In response, the receiving node filters out all frequency bands other than the particular frequency band, and receives the following transmission on that particular frequency band.
摘要翻译：在一个实施例中，管理设备确定网络中的节点的拓扑。基于拓扑结构，向节点分配（并通知）跳频序列，使得特定节点集合的每个特定节点被分配与其相邻的跳频序列不同的发射跳频序列，并且被隐藏该特定节点的邻居。在另一个实施例中，发送节点首先基于其跳频序列在其特定频带上发送传输指示信号，然后在特定频带上发送消息。在另一个实施例中，收听多个频带的接收节点可以检测特定频带上的传输指示信号。作为响应，接收节点滤除除了特定频带之外的所有频带，并在该特定频带上接收以下传输。

14. 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。

15. 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。

16. 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。

17. 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。

18. 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。

19. 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。

20. 发明申请

US20120230370A1 Efficient Transmission of Large Messages in Wireless Networks 审中-公开
标题翻译：无线网络中大消息的高效传输
公开(公告)号：US20120230370A1
公开(公告)日：2012-09-13
申请号：US13043156
申请日：2011-03-08
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： H04B1/713
CPC分类号： H04B1/713 , H04L5/0012 , H04L45/48 , H04W28/04 , H04W28/065 , H04W40/246 , H04W74/0841 , H04W84/18
摘要： In one embodiment, a sender in a frequency hopping wireless network classifies a message as a large message to be fragmented into a plurality of packets for transmission to a receiver, and in response, indicates to the receiver that the message is a large message to request use of an orthogonal frequency hopping sequence between the sender and receiver for the duration of the large message transmission, the orthogonal frequency hopping sequence orthogonal to a shared frequency hopping sequence of the wireless network. Thereafter, the sender transmits the large message to the receiver on the orthogonal frequency hopping sequence, and returns to the shared frequency hopping sequence upon completion. In another embodiment, the receiver receives the indication that a message is a large message (requesting use of the orthogonal frequency hopping sequence). If the receiver can comply, the large message is received on the orthogonal frequency hopping sequence.
摘要翻译：在一个实施例中，跳频无线网络中的发送者将消息分类为大的消息，以被分段成多个分组以便传输到接收机，并且作为响应，向接收者指示该消息是要求的大消息在大消息传输的持续时间内，在发送方和接收方之间使用正交跳频序列，正交跳频序列与无线网络的共享跳频序列正交。此后，发送方在正交跳频序列上向接收机发送大消息，并在完成时返回到共享跳频序列。在另一个实施例中，接收机接收消息是大消息（请求使用正交跳频序列）的指示。如果接收机符合要求，则在正交跳频序列上接收到大的消息。

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