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    Load balancing of throughput for multi-PHY networks using decision trees
    14.
    发明授权
    Load balancing of throughput for multi-PHY networks using decision trees 有权

    公开(公告)号：US11159430B2

    公开(公告)日：2021-10-26

    申请号：US16518130

    申请日：2019-07-22

    Applicant: Cisco Technology, Inc.

    Inventor： Lele Zhang ,  Chuanwei Li ,  Li Zhao ,  Yajun Xia

    IPC: H04L12/803 ,  H04L12/24 ,  G06N20/00 ,  H04L12/721 ,  H04L12/26 ,  H04L12/753

    Abstract: In one embodiment, a technique for load balancing of throughput for multi-PHY networks using decision trees is provided. A first device of a mesh communication network may collect at least one transmission metric indicative of a primary link and a secondary link between the first device and a second device of the mesh communication network. The first device may provide the at least one transmission metric as input to one or more decision trees comprising one or more attributes that are each indicative of a threshold for a corresponding transmission metric. The first device may obtain an output from the decision tree comprising a selection of either the primary link or the secondary link. The first device may send, based on the output from the decision tree, one or more packets to the second device using the selected link.

    Dynamic transmission power in wireless mesh networks using supervised and semi-supervised learning
    16.
    发明授权
    Dynamic transmission power in wireless mesh networks using supervised and semi-supervised learning 有权

    公开(公告)号：US10887851B1

    公开(公告)日：2021-01-05

    申请号：US16521184

    申请日：2019-07-24

    Applicant: Cisco Technology, Inc.

    Inventor： Lele Zhang ,  Huimin She ,  Wenchuan Ji ,  Chuanwei Li

    IPC: H04M1/00 ,  H04W52/36 ,  G05B13/02 ,  H04W24/08 ,  H04W84/18

    Abstract: In one embodiment, a technique for dynamic transmission power in wireless mesh networks using supervised and semi-supervised learning is provided. A first device of a mesh communication network may receive a set of transmission power metrics indicative of network conditions between a second device of the mesh communication network and a plurality of child nodes associated with the second device. The first device may provide the set of transmission power metrics as input to a supervised machine learning process that probabilistically determines one or more minimum transmission power thresholds for nodes of the mesh communication network. The first device may obtain an output from the supervised machine learning process comprising an indication of a particular minimum transmission power threshold for the second device. The first device may control the second device to exchange packets with the plurality of child nodes using the particular minimum transmission power threshold.

    CLOUD-BASED DEPLOYMENT SERVICE IN LOW-POWER AND LOSSY NETWORK
    17.
    发明申请
    CLOUD-BASED DEPLOYMENT SERVICE IN LOW-POWER AND LOSSY NETWORK 审中-公开

    公开(公告)号：US20200322809A1

    公开(公告)日：2020-10-08

    申请号：US16375778

    申请日：2019-04-04

    Applicant: Cisco Technology, Inc.

    Inventor： Li Zhao ,  Chuanwei Li ,  Lele Zhang ,  Huimin She

    IPC: H04W16/18 ,  H04W4/02 ,  G06F17/50

    Abstract: Systems, methods, and computer-readable media for identifying a deployment scheme for forming a wireless mesh network based on environmental characteristics and an optimum deployment scheme. In some examples, a geographical area for deployment of a wireless mesh network is identified. Additionally, environmental information of the geographical area can be collected. Network characteristics of an optimum deployment scheme for forming the wireless mesh network can be defined. As follows, a deployment scheme for forming the wireless mesh network can be identified based on the network characteristics of the optimum deployment scheme and the environmental information of the geographical area.

    Malicious black hole node detection and circumvention
    18.
    发明授权
    Malicious black hole node detection and circumvention 有权

    公开(公告)号：US12267682B2

    公开(公告)日：2025-04-01

    申请号：US18353772

    申请日：2023-07-17

    Applicant: Cisco Technology, Inc.

    Inventor： Lele Zhang ,  Yajun Xia ,  Chuanwei Li ,  Li Zhao

    IPC: H04W12/122 ,  G16Y30/10 ,  H04L9/40 ,  H04L43/0829 ,  H04L43/16 ,  H04W4/70 ,  H04W24/08 ,  H04W64/00 ,  H04W84/18

    Abstract: A method includes determining a number of drops of a plurality of messages sent to a first node of a plurality of nodes within a mesh network. Based at least in part on the number of drops of the plurality of messages exceeding a threshold number of drops for a time period, decrementing a first rating assigned to the first node to a second rating assigned to the first node. Based at least in part on the second rating being below a rating threshold, determining that the first node is a potentially malicious node. Based at least in part on a first distance to the first node being larger than a distance threshold, identifying that the first node is a malicious node. The method may further include ending communications with the first node.

    Reclaiming transmission priority following network topology formation
    19.
    发明授权
    Reclaiming transmission priority following network topology formation 有权

    公开(公告)号：US11799751B2

    公开(公告)日：2023-10-24

    申请号：US17409985

    申请日：2021-08-24

    Applicant: Cisco Technology, Inc.

    Inventor： Pascal Thubert ,  Li Zhao ,  Huimin She ,  Chuanwei Li

    IPC: H04L43/16 ,  H04L45/121 ,  H04L41/12 ,  H04L43/0882

    CPC classification number: H04L43/16 ,  H04L41/12 ,  H04L43/0882 ,  H04L45/121

    Abstract: In one embodiment, a method comprises: joining, by a network device, a network topology rooted by a root network device in a data network, and in response transmitting an advertisement indicating a position of the network device in the network topology; suppressing a second transmission based on initiating a deferred transmission operation in response to transmitting the advertisement; maintaining the deferred transmission operation to enable a prescribed minimum number of other network devices to join the network topology at respective identified lower positions than the position of the network device; and changing, by the network device, from the deferred transmission operation to an accelerated operation in response to expiration of a prescribed deferral interval or detecting the prescribed minimum number of other network devices having the respective identified lower positions, the accelerated operation enabling the network device to initiate transmission of a data packet before the other network devices.

    Interconnecting local RPL instance nodes via global RPL instance node as AODV relay
    20.
    发明授权
    Interconnecting local RPL instance nodes via global RPL instance node as AODV relay 有权

    公开(公告)号：US11463350B2

    公开(公告)日：2022-10-04

    申请号：US17102003

    申请日：2020-11-23

    Applicant: Cisco Technology, Inc.

    Inventor： Ling Wei ,  Wenjia Wu ,  Nan Yi ,  Chuanwei Li

    IPC: H04L12/28 ,  H04L45/30 ,  H04L12/46 ,  H04L12/18

    Abstract: In one embodiment, a method comprises: determining, by a network device that is configured for joining a local directed acyclic graph (DAG) instance in a data network, an unreachability by the network device to any member of the local DAG instance; generating and broadcasting, by the network device, a request message that identifies the network device requesting to join the local DAG instance, the request message causing a neighboring network device in a global DAG instance of the data network to rebroadcast the request message for reception by a member of the local DAG instance, the neighboring network device a non-member of the local DAG instance; and receiving, by the network device, a reply message indicating a member of the local DAG instance is reachable via the neighboring network device in the global DAG instance.

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