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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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公开(公告)号：US20240063932A1
公开(公告)日：2024-02-22
申请号：US18501454
申请日：2023-11-03
Applicant: ITRON, INC.
Inventor： Thomas F. UHLING , Keith Wayne BARNES , Howard Neal BRACE , Imad JAMIL
CPC classification number: H04J3/0638 , H04W56/001
Abstract: One embodiment of the present invention sets forth a technique for communicating within a network. The technique includes receiving, by a first node in a mesh network at a first receive time, a first beacon from a second node in the mesh network, the first beacon including a first network time associated with the second node; determining, by the first node, a first transmission time of a first unicast message to the second node based on (a) the first receive time, (b) the first network time, and (c) a unicast interval between consecutive unicast listening times on the second node; and transmitting, by the first node, the first unicast message to the second node at the first transmission time.
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公开(公告)号：US20230353491A1
公开(公告)日：2023-11-02
申请号：US18349286
申请日：2023-07-10
Applicant: ITRON, INC.
Inventor： Thomas F. UHLING , Keith Wayne BARNES , Howard Neal BRACE , Imad JAMIL , Fabrice MONIER
CPC classification number: H04L45/48 , H04W48/16 , H04W40/246 , H04W40/02
Abstract: A network system includes a main network implementing a conventional network protocol and a subtree of battery-powered nodes implementing a custom network protocol. The main network and the subtree are managed according to different subtree parameters. When a root node receives a request by a battery-powered node to join the subtree, the root node determines whether to allow the battery-powered node to join based on the subtree parameters for the subtree before sending a response to the battery-powered node.
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公开(公告)号：US20230247520A1
公开(公告)日：2023-08-03
申请号：US18296850
申请日：2023-04-06
Applicant: ITRON, INC.
Inventor： Thomas F. UHLING , Keith Wayne BARNES , Howard Neal BRACE , Imad JAMIL , Fabrice MONIER
CPC classification number: H04W40/246 , H04W24/02
Abstract: A network system implements a network protocol for devices and nodes withing a wireless network. A first node within a subtree of nodes in the wireless network performs a method including receiving a discovery request from a second node included in the wireless network, determining that an address associated with the second node is not included in a first address list that includes addresses of nodes along a node path between the first node and a root node of the subtree of nodes, and sending, in response to the determining, a response to the discovery request.
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公开(公告)号：US20220376807A1
公开(公告)日：2022-11-24
申请号：US17325892
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 receiving, from a first node in the network and at a first receive time, a first periodic beacon that includes a first network time associated with the first node. The technique also includes determining a second receive time at which a second periodic beacon from the first node is to be received based on the first network time and the first receive time. The technique further includes calculating a first listening window for the second periodic beacon based on the second receive time, a first jitter uncertainty, and a first drift uncertainty, and listening for the second periodic beacon during the first listening window.
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Patent Agency Ranking
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：US20240205970A1
公开(公告)日：2024-06-20
申请号：US18405262
申请日：2024-01-05
Applicant: ITRON, INC.
Inventor： Thomas F. UHLING , Keith Wayne BARNES , Howard Neal BRACE , Imad JAMIL
IPC: H04W74/0816 , H04W40/24 , H04W56/00 , H04W72/0446 , H04W72/1263 , H04W84/18
CPC classification number: H04W74/0816 , H04W40/244 , H04W56/001 , H04W72/0446 , H04W72/1263 , H04W84/18
Abstract: One embodiment of the present disclosure sets forth a technique for resolving beaconing conflicts within a network. The technique includes detecting, by a first node in a network, a first scheduling conflict between a first time when a first beacon is to be transmitted from the first node and a first listening window when a second beacon is expected to be received from a second node in the network; determining, by the first node in response to detecting the first scheduling conflict and based on an expected transmission time for the second beacon and a position of the second node in the network, an alternate listening window during which to listen for a third beacon from the second node; and listening, by the first node, for the third beacon from the second node during the alternate listening window.
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公开(公告)号：US20220376805A1
公开(公告)日：2022-11-24
申请号：US17326203
申请日：2021-05-20
Applicant: ITRON, INC.
Inventor： Thomas F. UHLING , Keith Wayne BARNES , Howard Neal BRACE , Imad JAMIL
IPC: H04J3/06
Abstract: One embodiment of the present invention sets forth a technique for communicating within a network. The technique includes receiving, from a first node in the network and at a first receive time, a first periodic beacon that includes a first network time associated with the first node. The technique also includes determining a first transmission time of a first unicast message to the first node based on the first network time and a unicast interval between consecutive unicast listening times on the first node. The technique further includes transmitting the first unicast message to the first node at the first transmission time.
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