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81.发明申请公开(公告)号：US20180302312A1
公开(公告)日：2018-10-18
申请号：US16018529
申请日：2018-06-26
Applicant: Cisco Technology, Inc.
Inventor： Jonathan W. Hui , Wei Hong , Jean-Philippe Vasseur
CPC classification number: H04L43/16 , H04B1/00 , H04W4/06 , H04W40/00 , H04W84/18 , Y02D70/00 , Y02D70/142 , Y02D70/144 , Y02D70/22
Abstract: In one embodiment, asynchronous broadcast communication is performed based on time-based events in channel-hopping networks. The embodiments include determining a plurality of channels in a channel-hopping network, on which a plurality of nodes communicate, and identifying an asynchronous broadcast message to transmit from a particular node. A plurality of time-based events is determined, and in response to each time-based event, the asynchronous broadcast message is transmitted on a single selected channel of the plurality of channels per time-based event.
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公开(公告)号：US09832242B2
公开(公告)日：2017-11-28
申请号：US15135603
申请日：2016-04-22
Applicant: Cisco Technology, Inc.
Inventor： Jonathan W. Hui , Wei Hong , Jean-Philippe Vasseur
CPC classification number: H04L65/4076 , H04L1/00 , H04L12/1863 , H04L12/189 , H04L45/16 , H04W28/06 , H04W72/005 , H04W72/02
Abstract: In one embodiment, a multicast communication is received at a particular node of a plurality of nodes receiving the multicast communication in a network. The particular node selects a subset of subcarriers using a probabilistic data structure, such that each of the plurality of nodes selects a respective subset of subcarriers using the probabilistic data structure. The particular node transmits an acknowledgement of receipt of the multicast communication on the subset of subcarriers selected by the particular node. The transmission occurs simultaneously with transmissions of acknowledgements from the other of the plurality of nodes.
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公开(公告)号：US09769821B2
公开(公告)日：2017-09-19
申请号：US14270972
申请日：2014-05-06
Applicant: Cisco Technology, Inc.
Inventor： Jonathan W. Hui , Wei Hong , Jean-Philippe Vasseur
IPC: H04W72/04 , H04L1/00 , H04B1/7143 , H04L12/801 , H04L1/04
CPC classification number: H04W72/0446 , H04B1/7143 , H04L1/0002 , H04L1/0017 , H04L1/04 , H04L47/14
Abstract: In one embodiment, a plurality of data rates available for communication is identified at a first device in a network. Slots of a channel hopping schedule are also identified and the data rates are assigned to the slots of the channel hopping schedule to generate a data rate hopping schedule. The generated data rate hopping schedule is further provided to a second device in the network.
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公开(公告)号：US09716528B2
公开(公告)日：2017-07-25
申请号：US14336546
申请日：2014-07-21
Applicant: Cisco Technology, Inc.
Inventor： Jonathan W. Hui , Jean-Philippe Vasseur , Wei Hong
IPC: H04B1/713 , H04B1/7143 , H04W72/04 , H04L1/00
CPC classification number: H04B1/713 , H04B1/7143 , H04L1/0002 , H04L1/0009 , H04L1/0017 , H04W72/044
Abstract: In one embodiment, a channel on which a receiving node will receive a data packet that is transmitted at a particular time in a channel-hopping network is determined according to a channel-hopping receive schedule of the receiving node. Channel characteristics of the determined channel are computed. Then, a code rate of the data packet is selected based on the computed channel characteristics of the determined channel. After the code rate selection, the data packet is transmitted on the determined channel to the receiving node using the selected code rate.
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公开(公告)号：US09712433B2
公开(公告)日：2017-07-18
申请号：US13653037
申请日：2012-10-16
Applicant: Cisco Technology, Inc.
Inventor： Jonathan W. Hui , Wei Hong , Jean-Philippe Vasseur
IPC: G06F15/16 , H04L12/753 , H04L12/721
CPC classification number: H04L45/48 , H04L45/123
Abstract: In one embodiment, a nodal device receives information from each of its neighboring nodes in a network. The information identifies a link quality between the nodal device and each of its neighboring nodes. The link quality information is stored in one or more bloom filters in the nodal device such that a table having a compressed format is provided in the bloom filter. The table includes probabilistic identifiers to identify link quality between the nodal device and each of its neighboring nodes.
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Patent Agency Ranking
公开(公告)号：US20170187661A1
公开(公告)日：2017-06-29
申请号：US15461154
申请日：2017-03-16
Applicant: Cisco Technology, Inc.
Inventor： Jonathan W. Hui , Wei Hong , Jean-Philippe Vasseur
IPC: H04L12/58
Abstract: Utilizing multiple network interfaces when sending data and acknowledgement packages comprises, in a low power and lossy network (LLN) or other network, a sender device comprises two or more network interfaces for communicating with one or more recipient devices. The sender device assesses the transmission capabilities of the network interfaces to determine data rates available for each interface. The sender device specifies which network interface will be used to transfer data and which network interface will be used to receive an acknowledgement from the recipient device. The sender device selects the network interface with the larger data capacity for transmitting a data packet and the network interface with the smaller data capacity for receiving an acknowledgement. The data transmission and the acknowledgement transmission may be transmitted simultaneously. The recipient device uses transmission parameters received from the sender device to determine the data rate with which to transmit the acknowledgement.
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公开(公告)号：US09673858B2
公开(公告)日：2017-06-06
申请号：US14953997
申请日：2015-11-30
Applicant: Cisco Technology, Inc.
Inventor： Jonathan W. Hui , Wei Hong , Jean-Philippe Vasseur
IPC: H04B1/00 , H04B1/7156 , H04W56/00
CPC classification number: H04B1/7156 , H04W56/001
Abstract: In one embodiment, a device determines a need to resynchronize a broadcast and unicast frequency-hopping schedules on its network interface. In response to the need, the device may solicit the broadcast schedule from one or more neighbor devices having the synchronized broadcast schedule, and then establishes the unicast schedule for the network interface using communication during the synchronized broadcast schedule.
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公开(公告)号：US20170099684A1
公开(公告)日：2017-04-06
申请号：US15387607
申请日：2016-12-21
Applicant: Cisco Technology, Inc.
Inventor： Jonathan W. Hui , Wei Hong , Jean-Philippe Vasseur
IPC: H04W76/00 , H04W40/14 , H04L12/761 , H04L12/707 , H04L12/721
CPC classification number: H04W76/40 , H04L45/14 , H04L45/16 , H04L45/22 , H04L45/48 , H04W28/18 , H04W40/14 , H04W40/246 , H04W84/18 , Y02D70/00 , Y02D70/142 , Y02D70/144 , Y02D70/22 , Y02D70/34
Abstract: In a multi-PHY, low power and lossy network comprising a plurality of nodes, a sender determines that a dwell time threshold limit for transmission of data will be exceeded by transmission of the data over a first network interface or that the recipient is unknown. The sender determines transmission parameters for the transmission of the data over the first network interface and transmits the transmission parameters to a receiver device over a second network interface that is different than the first network interface. The sender determines a channel on the first network interface for transmission of the data and transmits the determined channel with the transmission parameters to the receiver, or the receiver determines the channel on the first network interface for transmission of the data and transmits an indication of the determined channel to the sender in response to receiving the transmission parameters.
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公开(公告)号：US09565108B2
公开(公告)日：2017-02-07
申请号：US14563472
申请日：2014-12-08
Applicant: Cisco Technology, Inc.
Inventor： Jonathan W. Hui , Wei Hong , Jeongyeup Paek , Philip Buonadonna
IPC: H04L12/801 , H04L12/751 , H04L12/715 , H04L12/24
Abstract: In one embodiment, a device connected to a network receives at a network interface a first network size indicator for a first network and a second network size indicator for a second network. A difference between the first network size indicator and the second network size indicator is determined and a switching probability is calculated if the difference between the network size indicators is greater than a predetermined network size difference threshold. The device may then migrate from the first network to the second network based on the switching probability.
Abstract translation: 在一个实施例中，连接到网络的设备在网络接口处接收第一网络的第一网络大小指示符和用于第二网络的第二网络大小指示符。 确定第一网络大小指示符和第二网络大小指示符之间的差异，并且如果网络尺寸指示符之间的差大于预定的网络大小差异阈值，则计算切换概率。 然后，设备可以基于切换概率从第一网络迁移到第二网络。
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公开(公告)号：US09553796B2
公开(公告)日：2017-01-24
申请号：US13837642
申请日：2013-03-15
Applicant: Cisco Technology, Inc.
Inventor： Jonathan W. Hui , Jean-Philippe Vasseur , Wei Hong
IPC: G01R31/08 , H04L12/28 , H04L12/705 , H04L12/751 , H04L12/753
Abstract: In one embodiment, a node in a shared-media communication network may determine a first directed acyclic graph (DAG) topology, wherein the first DAG topology has a particular direction. The node may determine a second DAG topology in the shared-media communication network based on the first DAG topology. The second DAG topology may share the particular direction of the first DAG topology, to prevent loops between the first and the second DAG topologies.
Abstract translation: 在一个实施例中，共享媒体通信网络中的节点可以确定第一有向无环图（DAG）拓扑，其中第一DAG拓扑具有特定的方向。 节点可以基于第一DAG拓扑来确定共享 - 媒体通信网络中的第二DAG拓扑。 第二个DAG拓扑可以共享第一个DAG拓扑的特定方向，以防止第一个和第二个DAG拓扑之间的环路。
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