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公开(公告)号：US08830837B2
公开(公告)日：2014-09-09
申请号：US12971440
申请日：2010-12-17
IPC分类号： H04L12/26 , H04L12/803 , H04L12/801
CPC分类号： H04L47/125 , H04L47/14
摘要： In one embodiment, a receiving node in a computer network may detect congestion, and also identifies a set (e.g., subset) of its neighbor nodes. In response to the congestion, the receiving node may assign a transmission timeslot to each neighbor node of the set based on the congestion, where each neighbor is allowed to transmit (synchronously) only during its respective timeslot. The assigned timeslots may then be transmitted to the set of neighbor nodes. In another embodiment, a transmitting node (e.g., a neighbor node of the receiving node) may receive a scheduling packet from the receiving node. Accordingly, the transmitting node may determine its assigned transmission timeslot during which the transmitting node is allowed to transmit. As such, the transmitting node may then transmit packets only during the assigned timeslot (e.g., for a given time). In this manner, congestion at the receiving node may be reduced.
摘要翻译： 在一个实施例中，计算机网络中的接收节点可以检测拥塞，并且还识别其相邻节点的集合（例如子集）。 响应于拥塞，接收节点可以基于拥塞来向组中的每个相邻节点分配传输时隙，其中每个邻居仅在其相应时隙期间被允许传输（同步）。 然后可以将分配的时隙发送到相邻节点集合。 在另一个实施例中，发送节点（例如，接收节点的邻居节点）可以从接收节点接收调度分组。 因此，发送节点可以确定其发送节点被允许发送的其分配的传输时隙。 因此，发送节点可以仅在分配的时隙（例如，给定时间）期间发送分组。 以这种方式，可以减少接收节点处的拥塞。
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2.发明授权公开(公告)号：US08780953B2
公开(公告)日：2014-07-15
申请号：US12971284
申请日：2010-12-17
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。
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公开(公告)号：US20120155260A1
公开(公告)日：2012-06-21
申请号：US12971440
申请日：2010-12-17
IPC分类号： H04L12/26
CPC分类号： H04L47/125 , H04L47/14
摘要： In one embodiment, a receiving node in a computer network may detect congestion, and also identifies a set (e.g., subset) of its neighbor nodes. In response to the congestion, the receiving node may assign a transmission timeslot to each neighbor node of the set based on the congestion, where each neighbor is allowed to transmit (synchronously) only during its respective timeslot. The assigned timeslots may then be transmitted to the set of neighbor nodes. In another embodiment, a transmitting node (e.g., a neighbor node of the receiving node) may receive a scheduling packet from the receiving node. Accordingly, the transmitting node may determine its assigned transmission timeslot during which the transmitting node is allowed to transmit. As such, the transmitting node may then transmit packets only during the assigned timeslot (e.g., for a given time). In this manner, congestion at the receiving node may be reduced.
摘要翻译： 在一个实施例中，计算机网络中的接收节点可以检测拥塞，并且还识别其相邻节点的集合（例如子集）。 响应于拥塞，接收节点可以基于拥塞来向组中的每个相邻节点分配传输时隙，其中每个邻居仅在其相应时隙期间被允许传输（同步）。 然后可以将分配的时隙发送到相邻节点集合。 在另一个实施例中，发送节点（例如，接收节点的邻居节点）可以从接收节点接收调度分组。 因此，发送节点可以确定其发送节点被允许发送的其分配的传输时隙。 因此，发送节点可以仅在分配的时隙（例如，给定时间）期间发送分组。 以这种方式，可以减少接收节点处的拥塞。
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4.发明申请公开(公告)号：US20120155511A1
公开(公告)日：2012-06-21
申请号：US12971284
申请日：2010-12-17
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。
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公开(公告)号：US09019846B2
公开(公告)日：2015-04-28
申请号：US13164731
申请日：2011-06-20
IPC分类号： H04L12/26 , H04W40/16 , H04L12/727 , H04L12/721 , H04L12/717 , H04W40/22
CPC分类号： H04W40/16 , H04L45/121 , H04L45/124 , H04L45/42 , H04W40/22 , Y02D70/142 , Y02D70/144 , Y02D70/22 , Y02D70/34 , Y02D70/39
摘要： In one embodiment, hidden neighbor relationships are identified based on received neighbor information from a plurality of nodes in a communication network. Based on determining a number of hidden neighbors for a particular node at various node parameters, a cost function associated with the particular node may be determined and utilized. In another embodiment, a number of hidden nodes of the particular node is determined across a range of transmission powers, and a delay associated with the particular node reaching a root node in the network across the range of transmission powers is also determined based on the neighbor nodes reachable at respective transmission powers. A tradeoff is determined across the range of transmission powers between the number of hidden nodes and the delay, and then the transmission power of the particular node can be set based on an acceptable determined tradeoff.
摘要翻译： 在一个实施例中，基于来自通信网络中的多个节点的接收的邻居信息来识别隐藏的邻居关系。 基于在各种节点参数确定特定节点的隐藏邻居的数量，可以确定和利用与特定节点相关联的成本函数。 在另一个实施例中，跨越发射功率的范围确定特定节点的多个隐藏节点，并且还基于邻居确定与特定节点相关联的延迟跨越发射功率的范围到达网络中的根节点的延迟 节点在各自的发射功率下可达到。 在隐藏节点数和延迟之间的传输功率范围内确定权衡，然后可以基于可接受的确定的折衷来设置特定节点的传输功率。
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公开(公告)号：US20120320768A1
公开(公告)日：2012-12-20
申请号：US13164731
申请日：2011-06-20
IPC分类号： H04W24/00
CPC分类号： H04W40/16 , H04L45/121 , H04L45/124 , H04L45/42 , H04W40/22 , Y02D70/142 , Y02D70/144 , Y02D70/22 , Y02D70/34 , Y02D70/39
摘要： In one embodiment, hidden neighbor relationships are identified based on received neighbor information from a plurality of nodes in a communication network. Based on determining a number of hidden neighbors for a particular node at various node parameters, a cost function associated with the particular node may be determined and utilized. In another embodiment, a number of hidden nodes of the particular node is determined across a range of transmission powers, and a delay associated with the particular node reaching a root node in the network across the range of transmission powers is also determined based on the neighbor nodes reachable at respective transmission powers. A tradeoff is determined across the range of transmission powers between the number of hidden nodes and the delay, and then the transmission power of the particular node can be set based on an acceptable determined tradeoff.
摘要翻译： 在一个实施例中，基于来自通信网络中的多个节点的接收的邻居信息来识别隐藏的邻居关系。 基于在各种节点参数确定特定节点的隐藏邻居的数量，可以确定和利用与特定节点相关联的成本函数。 在另一个实施例中，跨越发射功率的范围确定特定节点的多个隐藏节点，并且还基于邻居确定与特定节点相关联的延迟跨越发射功率的范围到达网络中的根节点的延迟 节点在各自的发射功率下可达到。 在隐藏节点数和延迟之间的传输功率范围内确定权衡，然后可以基于可接受的确定的折衷来设置特定节点的传输功率。
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7.发明授权Method and apparatus for dynamically adjusting system timers in wireless networks to optimize connection performance 有权用于动态调整无线网络中的系统定时器以优化连接性能的方法和装置公开(公告)号：US07599398B1
公开(公告)日：2009-10-06
申请号：US10883550
申请日：2004-07-01
IPC分类号： H04J3/06
CPC分类号： H04W56/006 , H04W56/003
摘要： A root node sets wireless network timer values by using dynamic location information of a plurality of non-root nodes. In an embodiment, the root node and the non-root nodes are bridges, wherein the non-root bridges are connected to the root bridge in a point-to-point or point-to-multipoint manner. The locations of the nodes are determined by using a location system and locations receivers. The root node and each of the non-root nodes use this location information to determine the optimum timer values for the wireless network, thereby improving throughput on the wireless network. In one embodiment, the location system is the global positioning system (GPS). The location receiver is a GPS location receiver that is embedded in each of the nodes. In another embodiment, the GPS location receiver is external to the nodes, and the location information is determined remotely.
摘要翻译： 根节点通过使用多个非根节点的动态位置信息来设置无线网络定时器值。 在一个实施例中，根节点和非根节点是桥，其中非根网桥以点对点或点对多点的方式连接到根网桥。 通过使用位置系统和位置接收器来确定节点的位置。 根节点和每个非根节点使用该位置信息来确定无线网络的最佳定时器值，从而提高无线网络上的吞吐量。 在一个实施例中，定位系统是全球定位系统（GPS）。 位置接收器是嵌入在每个节点中的GPS定位接收器。 在另一个实施例中，GPS定位接收器在节点外部，并且远程地确定位置信息。
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