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公开(公告)号：US20250047580A1
公开(公告)日：2025-02-06
申请号：US18923174
申请日：2024-10-22
Applicant: ITRON, INC.
Inventor： Thomas F. UHLING , Keith Wayne BARNES
IPC: H04L43/0829 , H04L43/067 , H04L43/0888 , H04L43/16
Abstract: Techniques for determining network reliability include a first node in a mesh network computing a received message success rate for a connection from the first node to a second node that is a neighbor node to the first node; receiving from the second node, a first accumulated received message success rate, wherein the first accumulated received message success rate comprises a value indicating a success rate associated with a path from a source to the second node; computing, based on the first accumulated received message success rate and the received message success rate, a second accumulated received message success rate for a route from the source to the first node using the path from the source to the second node; selecting, based on the second accumulated received message success rate, the second node from a plurality of neighbor nodes; and receiving a message from the source via the second node.
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公开(公告)号：US20240205799A1
公开(公告)日：2024-06-20
申请号：US18084333
申请日：2022-12-19
Applicant: ITRON, INC.
Inventor： Keith Wayne BARNES , Thomas F. UHLING
IPC: H04W48/16
Abstract: Various embodiments set forth a method comprising detecting, by an access point, that the access point has obtained network connectivity after a first reboot event; in response to detecting that the access point has obtained network connectivity after the first reboot event: determining, by the access point, a first amount of time between a first reboot time associated with the first reboot event and a second reboot time associated with a second reboot event that occurred prior to the first reboot event; updating, by the access point, a reboot time metric associated with the access point based on the first amount of time; and transmitting, by the access point, the reboot time metric to one or more nodes of a mesh network.
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公开(公告)号：US20230413110A1
公开(公告)日：2023-12-21
申请号：US18457766
申请日：2023-08-29
Applicant: ITRON, INC.
Inventor： Imad JAMIL , Keith Wayne BARNES , Fabrice MONIER , Thomas F. UHLING
Abstract: Targeted parent selection for nodes within a network include, filtering, by a node in a mesh network using one or more first network optimization criteria, a set of potential parent nodes to generate a subset of potential parent nodes; selecting, by the node using one or more second network optimization criteria, a target parent node from the subset of potential parent nodes; and transmitting, by the node, a connection request to the target parent node.
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公开(公告)号：US20230045907A1
公开(公告)日：2023-02-16
申请号：US17402245
申请日：2021-08-13
Applicant: ITRON, INC.
Inventor： Thomas F. UHLING , Keith Wayne BARNES
Abstract: One embodiment of the present invention sets forth a technique for evaluating connections between nodes in a mesh network. The technique includes determining, at a first node, one or more first accumulated message success rates associated with transmitting messages from the first node to a target destination within the mesh network via an established parent node and with receiving messages from the target destination via the established parent node; determining, based on the one or more first accumulated message success rates, that a search for a different parent node should be performed; identifying a plurality of potential parent nodes; computing, for each potential parent node, one or more second accumulated message success rates associated with transmitting messages from the first node to a target destination within the mesh network via the potential parent node and with receiving messages from the target destination via the potential parent node; and based on the second accumulated message success rates, selecting a new parent node from the plurality of potential parent nodes or maintaining the established parent node
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公开(公告)号：US20220353786A1
公开(公告)日：2022-11-03
申请号：US17245420
申请日：2021-04-30
Applicant: ITRON, INC.
Inventor： Thomas F. UHLING , Keith Wayne BARNES , Howard Neal BRACE , Imad JAMIL , Fabrice MONIER
Abstract: A network system includes a main network implementing a conventional network protocol and a BPD subtree implementing a custom network protocol. The main network comprises a plurality of MPD nodes, the conventional network protocol being configured for MPD nodes. The BPD subtree comprises a plurality of BPD nodes, the custom network protocol being configured for BPD nodes. The custom network protocol defines smaller and simpler subtrees relative to the conventional network protocol. As a result, the custom network protocol defines less complex functions relative to the conventional network protocol, including functions for discovery, messaging, and loop management. A root node of the BPD subtree is connected with an MPD node of the main network and one or more descendant nodes of the BPD subtree. The root node implements the conventional network protocol and the custom network protocol.
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Patent Agency Ranking
公开(公告)号：US20240205147A1
公开(公告)日：2024-06-20
申请号：US18069130
申请日：2022-12-20
Applicant: ITRON, INC.
Inventor： Keith Wayne BARNES , Imad JAMIL , Thomas F. UHLING
IPC: H04L45/74
Abstract: Various embodiments disclosed herein provide communication techniques using forced forward addressing. In various embodiments, a method includes receiving, by a first node of a mesh network, a first unicast message from a second node, wherein the first node is coupled to one or more of child nodes that are neighbor nodes to the first node; determining, by the first node, that a destination address of the first unicast message is a forced forward address; and in response to determining that the destination address is a forced forward address, forwarding, by the first node, the first unicast message to the one or more of child nodes by transmitting respective second unicast messages to the one or more of child nodes.
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公开(公告)号：US20230388037A1
公开(公告)日：2023-11-30
申请号：US18446115
申请日：2023-08-08
Applicant: ITRON, INC.
Inventor： Thomas F. UHLING , Keith Wayne BARNES , Howard Neal BRACE , Imad JAMIL
IPC: H04J3/06 , H04L43/087 , H04L43/106
CPC classification number: H04J3/0667 , H04J3/0602 , H04L43/106 , H04L43/087 , H04J3/0626
Abstract: Techniques for performing time synchronization within a network include a method comprising: determining, by a first node, a receive time at which a periodic beacon from a second node is expected to be received based on timing information associated with the second node; determining, by the first node, a first listening window for the periodic beacon based on the receive time and one or more of a drift uncertainty associated with an anticipated drift in a correction of a timing error between the first node and the second node or a jitter uncertainty associated with timing jitter in the first node or the second node; and listening, by the first node, for the periodic beacon during the first listening window.
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公开(公告)号：US20220377793A1
公开(公告)日：2022-11-24
申请号：US17325878
申请日：2021-05-20
Applicant: ITRON, INC.
Inventor： Thomas F. UHLING , Keith Wayne BARNES , Howard Neal BRACE , Imad JAMIL
Abstract: One embodiment of the present invention sets forth a technique for performing time synchronization within a network. The technique includes detecting a first scheduling conflict between a first transmission time associated with a first periodic beacon from a first node in the network and a first listening window associated with receiving a second periodic beacon from a second node in the network. The technique also includes determining a first alternate transmission time for the second periodic beacon based on a second transmission time associated with the second periodic beacon and a position of the second node in the network and calculating a second listening window associated with transmission of the second periodic beacon from the second node at the first alternate transmission time. The technique further includes listening for the second periodic beacon during the second listening window.
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公开(公告)号：US20220377753A1
公开(公告)日：2022-11-24
申请号：US17325868
申请日：2021-05-20
Applicant: ITRON, INC.
Inventor： Thomas F. UHLING , Keith Wayne BARNES , Howard Neal BRACE , Imad JAMIL
IPC: H04W72/12
Abstract: One embodiment of the present invention sets forth a technique for performing time synchronization within a network. The technique includes detecting a first scheduling conflict between a first transmission time associated with a first periodic beacon from a first node in the network and a second transmission time associated with a second periodic beacon from a second node in the network. The technique also includes determining a first alternate transmission time associated with the first periodic beacon based on a position of the first node in the network and the first transmission time. The technique further includes transmitting the first periodic beacon at the first transmission time, and transmitting an alternate periodic beacon at the first alternate transmission time.
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公开(公告)号：US20200007269A1
公开(公告)日：2020-01-02
申请号：US16024577
申请日：2018-06-29
Applicant: ITRON, INC.
Inventor： Thomas UHLING , Imad JAMIL , Fabrice MONIER , Keith Wayne BARNES
Abstract: A wireless mesh network includes a plurality of nodes coupled together in parent-child relationships. A child node is configured to cascade listening rate changes upstream to a parent node to perform low-latency communications. The child node transmits an authentication message to the parent node indicating the listening rate change. The child node sets a timer and waits for an acknowledgement from the parent node. If the child node receives the acknowledgement, then the child node and the parent node change listening rate to permit low-latency communications. In addition, if the parent node loses network access, the parent node sets a timer and then waits to abandon the child node until after the timer elapses.
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