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91. 发明申请

US20130121176A1 COMMUNICATION PROTOCOL FOR ENERGY-HARVESTING DEVICES 有权
标题翻译：用于能量收集设备的通信协议
公开(公告)号：US20130121176A1
公开(公告)日：2013-05-16
申请号：US13297997
申请日：2011-11-16
申请人： Sateesh K. Addepalli , Raghuram S. Sudhaakar , Jean-Philippe Vasseur
发明人： Sateesh K. Addepalli , Raghuram S. Sudhaakar , Jean-Philippe Vasseur
IPC分类号： H04L12/26
CPC分类号： H04L67/12 , H05B37/0272
摘要： In one embodiment, an energy-harvesting communication device of a communication network accumulates energy, e.g., electromagnetic energy. Upon detecting that the accumulated energy surpasses a sufficient threshold, the communication device may transmit a message into the communication network using the accumulated energy as an unreliable and unsynchronized broadcast transmission to any available receiver within the communication network.
摘要翻译：在一个实施例中，通信网络的能量收集通信设备累积能量，例如电磁能量。在检测到累积能量超过足够的阈值时，通信设备可以使用累积的能量将消息发送到通信网络中的任何可用接收机的不可靠和不同步的广播传输。

92. 发明申请

US20130067063A1 DYNAMIC KEEPALIVE PARAMETERS FOR REVERSE PATH VALIDATION IN COMPUTER NETWORKS 有权
标题翻译：用于计算机网络中反向路径验证的动态保持参数
公开(公告)号：US20130067063A1
公开(公告)日：2013-03-14
申请号：US13230373
申请日：2011-09-12
申请人： Jean-Philippe Vasseur , Jonathan W. Hui
发明人： Jean-Philippe Vasseur , Jonathan W. Hui
IPC分类号： G06F15/16
CPC分类号： H04L45/026 , H04L45/16 , H04L45/22 , H04L45/28 , H04L45/36 , H04L45/70
摘要： In one embodiment, a network device determines a path from itself to a source device in a computer network, where the source device utilizes the path in reverse to reach the network device. Based on determining a reliability of the path in reverse, the network device may dynamically adjust one or more keepalive parameters for keepalive messages sent on the path. Accordingly, the network device may then send keepalive messages on the path based on the dynamically adjusted keepalive parameters.
摘要翻译：在一个实施例中，网络设备确定在计算机网络中自身到源设备的路径，其中源设备利用相反的路径到达网络设备。基于反向确定路径的可靠性，网络设备可以动态调整在路径上发送的保持活动消息的一个或多个保持活动参数。因此，网络设备然后可以基于动态调整的保持活动参数在路径上发送保持活动消息。

93. 发明申请

US20130064072A1 PROACTIVE SOURCE-BASED REVERSE PATH VALIDATION IN COMPUTER NETWORKS 有权
标题翻译：计算机网络中基于源的反向路径验证
公开(公告)号：US20130064072A1
公开(公告)日：2013-03-14
申请号：US13230154
申请日：2011-09-12
申请人： Jean-Philippe Vasseur , Jonathan W. Hui
发明人： Jean-Philippe Vasseur , Jonathan W. Hui
IPC分类号： H04L12/26
CPC分类号： H04L67/145 , H04L41/12 , H04L43/10 , H04L45/026 , H04L45/22 , H04L45/28 , H04L45/34 , H04L45/36
摘要： In one embodiment, a network device may receive an indication of a particular future message time, and determines a path validation time that is prior to the particular future message time by an amount at least long enough to detect and report a route change of a path from the network device to a source of the particular future message, wherein the source utilizes the path in reverse to reach the network device for the particular future message. Accordingly, the network device sends, at the path validation time, a keepalive message on the path, where in response to a failure of the keepalive message on the path, the network device repairs the path to the source with a particular route change, and reports the particular route change to the source, e.g., such that in response, the source may transmit the particular future message on the changed path in reverse.
摘要翻译：在一个实施例中，网络设备可以接收特定未来消息时间的指示，并且确定在特定未来消息时间之前的路径验证时间至少足够长的时间量以检测和报告路径的路由改变从网络设备到特定的未来消息的源，其中源使用相反的路径到达用于特定将来消息的网络设备。因此，网络设备在路径验证时间发送路径上的keepalive消息，响应于该路径上的keepalive消息的故障，网络设备以特定路由更改修复到源的路径，以及报告到源的特定路由更改，例如，作为响应，源可以相反地在改变的路径上发送特定的将来消息。

94. 发明申请

US20130028104A1 ESTIMATED TRANSMISSION OVERHEAD (ETO) METRICS FOR VARIABLE DATA RATE COMMUNICATION LINKS 有权
标题翻译：用于可变数据速率通信链路的估计传输（ETO）量度
公开(公告)号：US20130028104A1
公开(公告)日：2013-01-31
申请号：US13191617
申请日：2011-07-27
申请人： Jonathan W. Hui , Jean-Philippe Vasseur
发明人： Jonathan W. Hui , Jean-Philippe Vasseur
IPC分类号： H04L12/26
CPC分类号： H04L47/25 , H04L45/123 , H04L45/48 , H04L47/34 , H04W4/38 , H04W84/18
摘要： In one embodiment, an expected transmission count (ETX) link metric is computed for a link between a transmitter and a receiver in a communication network, the ETX representative of an expected number of transmissions necessary for a message to be successfully received by the receiver over the link, and a data rate of the link at which the ETX is computed is also determined. From these, an estimated transmission overhead (ETO) link metric for the link may be computed by dividing the ETX by the data rate. In one embodiment, the data rate of the link may be adjusted based on the ETO (e.g., to minimize the ETO). In another embodiment, routes through the communication network may be selected based on ETO values along the route.
摘要翻译：在一个实施例中，为通信网络中的发射机和接收机之间的链路计算出期望的传输计数（ETX）链路量度，ETX表示接收机成功接收消息所需的预期传输次数链路以及计算ETX的链路的数据速率也被确定。由此可以通过将ETX除以数据速率来计算链路的估计传输开销（ETO）链路度量。在一个实施例中，可以基于ETO来调整链路的数据速率（例如，以最小化ETO）。在另一个实施例中，可以基于沿路由的ETO值来选择通过通信网络的路由。

95. 发明申请

US20130022083A1 SUB-SLOTTING TO IMPROVE PACKET SUCCESS RATE IN CARRIER SENSE MULTIPLE ACCESS NETWORKS 有权
标题翻译：子卡槽以提高载体感应多路访问网络中的分组成功率
公开(公告)号：US20130022083A1
公开(公告)日：2013-01-24
申请号：US13187075
申请日：2011-07-20
申请人： Jean-Philippe Vasseur , Jonathan W. Hui
发明人： Jean-Philippe Vasseur , Jonathan W. Hui
IPC分类号： H04B1/713
CPC分类号： H04W74/0808 , H04B1/713 , H04L12/4035 , H04L12/413 , H04W48/16 , H04W74/02
摘要： In one embodiment, a communication device in a frequency hopping communication network determines an intention to forward a first packet in a particular timeslot of a frequency hopping sequence. As such, the device scans in receive mode for an initial portion of the particular timeslot on a particular frequency known to neighbors of the communication device for reaching the communication device. In response to determining that the communication device is receiving a second packet during the initial portion, the device remains in receive mode to receive a remainder of the second packet. Conversely, in response to not receiving the second packet during the initial portion, the device proceeds to transmit the first packet during a remainder of the particular timeslot.
摘要翻译：在一个实施例中，跳频通信网络中的通信设备确定在跳频序列的特定时隙中转发第一分组的意图。这样，设备以接收通信设备的邻居已知的特定频率的特定时隙的初始部分以接收模式扫描以到达通信设备。响应于在初始部分期间确定通信设备正在接收第二分组，设备保持接收模式以接收第二分组的剩余部分。相反，响应于在初始部分期间没有接收到第二分组，设备继续在特定时隙的剩余时间期间发送第一分组。

96. 发明申请

US20130010615A1 RAPID NETWORK FORMATION FOR LOW-POWER AND LOSSY NETWORKS 有权
标题翻译：用于低功耗和低成本网络的快速网络形成
公开(公告)号：US20130010615A1
公开(公告)日：2013-01-10
申请号：US13176275
申请日：2011-07-05
申请人： Jonathan W. Hui , Jean-Philippe Vasseur
发明人： Jonathan W. Hui , Jean-Philippe Vasseur
IPC分类号： H04L12/26 , H04L12/28
CPC分类号： H04L41/0806 , H04L41/0823 , H04L61/2015 , H04L61/2092
摘要： In one embodiment, a node joins a communication network, and in response to joining the network, operates in a rapid startup mode, wherein the node in rapid startup mode establishes network configurations rapidly by deemphasizing quality (optimality) of the network configurations. Subsequent to operating in the rapid startup mode (e.g., after some timer or explicit command), the node then operates in a robust mode, wherein the node in robust mode iteratively refines the network configurations to increase the quality of the network configurations.
摘要翻译：在一个实施例中，节点加入通信网络，响应于加入网络，以快速启动模式运行，其中快速启动模式中的节点通过强调网络配置的质量（最佳）来快速建立网络配置。在快速启动模式（例如，在一些定时器或显式命令之后）操作之后，该节点然后以鲁棒模式操作，其中鲁棒模式下的节点迭代地优化网络配置以提高网络配置的质量。

97. 发明申请

US20120213124A1 METHOD AND APPARATUS TO TRIGGER DAG REOPTIMIZATION IN A SENSOR NETWORK 有权
标题翻译：在传感器网络中触发DAG选择的方法和装置
公开(公告)号：US20120213124A1
公开(公告)日：2012-08-23
申请号：US13044299
申请日：2011-03-09
申请人： Jean-Philippe Vasseur , Navneet Agarwal , Jonathan W. Hui
发明人： Jean-Philippe Vasseur , Navneet Agarwal , Jonathan W. Hui
IPC分类号： H04L12/28
CPC分类号： H04L45/02 , H04L41/12 , H04L45/26 , H04L45/48 , H04W4/70 , H04W40/24
摘要： In one embodiment, a probing technique allows a root node to determine whether to trigger reoptimization of a computer network represented by a directed acyclic graph (DAG) without injecting unnecessary traffic into the network. The root node may store and maintain information indicative of an ideal shape or topology of the DAG. During a normal DAG maintenance operation, the root node may transmit a DAG discovery request (probe request) that is configured to probe each node within the DAG for information used to determine a current topology of the DAG. In response, each node may record the information, e.g., routing and non-routing metrics, in a DAG discovery reply (probe reply) that is propagated to the root node. Upon receiving one or more replies, the root node may analyze the metrics to determine whether the current topology of the DAG deviates from the ideal DAG topology. The root node may thus determine DAG topology deviation upon probing at minimal cost. A number of algorithms may then be used to determine whether reoptimization, i.e., global repair, of the DAG is is required and, if so, the root node may dynamically trigger the global repair.
摘要翻译：在一个实施例中，探测技术允许根节点确定是否触发由有向无环图（DAG）表示的计算机网络的重新优化，而不会将不必要的业务注入到网络中。根节点可以存储和维护指示DAG的理想形状或拓扑的信息。在正常的DAG维护操作期间，根节点可以发送被配置为探测DAG内的每个节点的DAG发现请求（探测请求），用于确定DAG的当前拓扑结构的信息。作为响应，每个节点可以在传播到根节点的DAG发现回复（探针回复）中记录信息，例如路由和非路由度量。在接收到一个或多个答复之后，根节点可以分析度量以确定DAG的当前拓扑是否偏离理想的DAG拓扑。因此，根节点可以以最小的成本在探测时确定DAG拓扑偏差。然后可以使用许多算法来确定是否需要重新优化，即全局修复，如果是，则根节点可以动态地触发全局修复。

98. 发明授权

US08155000B2 Technique for enabling traffic engineering on CE-CE paths across a provider network 有权
标题翻译：通过供应商网络在CE-CE路径上实现流量工程的技术
公开(公告)号：US08155000B2
公开(公告)日：2012-04-10
申请号：US12770391
申请日：2010-04-29
申请人： Jean-Philippe Vasseur
发明人： Jean-Philippe Vasseur
IPC分类号： H04J1/16
CPC分类号： H04L45/50 , H04L45/02
摘要： In one embodiment, Traffic Engineering (TE) is configured on a provider edge device to customer edge device (PE-CE) link extending from a provider edge device (PE) in a provider network to a customer edge device (CE) in a customer network. TE information regarding the TE-configured PE-CE link is conveyed from the PE to one or more other nodes in the provider network. TE information regarding one or more other TE-configured PE-CE links is received from one or more other nodes. A TE database (TED) is expanded to include information for the one or more other TE-configured PE-CE links. TE is applied to a customer edge device to customer edge device (CE-CE) path using at least some of the information for the one or more other TE-configured PE-CE links included in the TED.
摘要翻译：在一个实施例中，在提供商边缘设备上将流量工程（TE）配置到从提供商网络中的提供商边缘设备（PE）到客户边缘设备（CE）的客户边缘设备（PE-CE）链路网络。关于TE配置的PE-CE链路的TE信息从PE传送到提供商网络中的一个或多个其他节点。从一个或多个其他节点接收关于一个或多个其它TE配置的PE-CE链路的TE信息。 TE数据库（TED）扩展为包括一个或多个其他TE配置的PE-CE链路的信息。使用TED中包含的一个或多个其他TE配置的PE-CE链路的信息中的至少一些信息，将TE应用于客户边缘设备到客户边缘设备（CE-CE）路径。

99. 发明授权

US08131873B2 Technique for selecting a path computation element 有权
标题翻译：选择路径计算元素的技术
公开(公告)号：US08131873B2
公开(公告)日：2012-03-06
申请号：US10983280
申请日：2004-11-05
申请人： Jean-Philippe Vasseur , David D. Ward , Muthurajah Sivabalan , Stefano B. Previdi
发明人： Jean-Philippe Vasseur , David D. Ward , Muthurajah Sivabalan , Stefano B. Previdi
IPC分类号： G06F15/173
CPC分类号： H04L45/42 , H04L45/04 , H04L45/12 , H04L45/127 , H04L45/44 , H04L45/58
摘要： A technique efficiently selects a Path Computation Element (PCE) to compute a path between nodes of a computer network. The PCE selection technique is illustratively based on dynamic advertisements of the PCE's available path computation resources, using (i) a low-pass filter algorithm to compute such resources, and (ii) threshold determinations to control distribution of those advertisements. To that end, the novel technique enables one or more PCEs to dynamically send (advertise) their available path computation resources to a Path Computation Client (PCC) by way of the controlled advertisements. In addition, the technique enables the PCC to efficiently select a PCE (or set of PCEs) to service a path computation request based upon those available resources.
摘要翻译：一种技术有效地选择路径计算元素（PCE）来计算计算机网络的节点之间的路径。 PCE选择技术说明性地基于PCE可用路径计算资源的动态广告，使用（i）低通滤波器算法来计算这样的资源，以及（ii）阈值确定以控制这些广告的分布。为此，新技术使得一个或多个PCE能够通过受控广告动态地向路径计算客户端（PCC）发送（通告）它们的可用路径计算资源。此外，该技术使得PCC能够基于这些可用资源有效地选择PCE（或一组PCE）来服务路径计算请求。

100. 发明授权

US08116227B1 Optimal automated exploration of hierarchical multiprotocol label switching label switch paths 有权
标题翻译：分层多协议标签交换标签交换路径的最佳自动化探索
公开(公告)号：US08116227B1
公开(公告)日：2012-02-14
申请号：US11642473
申请日：2006-12-20
申请人： Danny Prairie , Yufei Shi , George Swallow , Thomas D. Nadeau , Vanson Lim , Jean-Philippe Vasseur
发明人： Danny Prairie , Yufei Shi , George Swallow , Thomas D. Nadeau , Vanson Lim , Jean-Philippe Vasseur
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L45/50 , H04L45/24
摘要： Optimal automated exploration of hierarchical MPLS LSPs is disclosed. A path verification message (PVM) is transmitted from an initial router. Each label in the PVM's label stack corresponds to a hierarchy layer and is associated with a time-to-live (TTL) field. The TTL field for the label of a current layer is set so the PVM travels one hop from the initial router. In response, a reply message indicating that the PVM reached its destination is received. These steps are then repeated. For each successive PVM transmitted, the TTL field associated with a label corresponding to the current hierarchy layer is incremented. For any reply message including information describing a non-current layer, modify the next PVM's label stack and increment the TTL field of the label for the described different layer; any other TTL fields are unchanged. If any received reply message indicates a destination router was reached, the process terminates.
摘要翻译：公开了分层MPLS LSP的最佳自动化探索。从初始路由器发送路径验证消息（PVM）。 PVM标签堆栈中的每个标签对应于层次结构层，并与生存时间（TTL）字段相关联。当前层的标签的TTL字段设置为使PVM从初始路由器传播一跳。作为响应，接收到指示PVM到达其目的地的应答消息。然后重复这些步骤。对于发送的每个连续的PVM，与当前层级层相对应的标签相关联的TTL字段递增。对于包含描述非当前层的信息的任何回复消息，修改下一个PVM的标签栈，并增加描述的不同层的标签的TTL字段; 任何其他TTL字段都不变。如果任何接收到的回复消息指示到达目的地路由器，则该过程终止。

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