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

IPC: H04L45/48 ,  H04W48/16 ,  H04W40/24 ,  H04W40/02

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.

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

IPC: H04W40/24 ,  H04W24/02

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.

公开(公告)号：US20230156077A1

公开(公告)日：2023-05-18

申请号：US18151102

申请日：2023-01-06

Applicant: ITRON, INC.

Inventor： Imad JAMIL ,  Jerome BARTIER ,  Fabrice MONIER ,  Samuel DE VALS

IPC: H04L67/1008

CPC classification number: H04L67/1008

Abstract: Various embodiments disclose a method performed by a first node device in a mesh network that includes identifying a plurality of neighbor node devices that have one or more blocks of a dataset; determining quality scores for respective node devices of the plurality of neighbor node devices; selecting, based on the quality scores, a second node device from the plurality of neighbor node devices; and sending, to the second node device, a first request to receive at least one block of the one or more blocks.

公开(公告)号：US20200008146A1

公开(公告)日：2020-01-02

申请号：US16024574

申请日：2018-06-29

Applicant: ITRON, INC.

Inventor： Thomas UHLING ,  Imad JAMIL ,  Fabrice MONIER ,  Keith Wayne BARNES

IPC: H04W52/02 ,  H04W72/12

Abstract: A wireless mesh network includes a child node coupled to a parent node. The parent node transmits time sync beacons that indicate a time slot number and a start time for a current time slot. The child node receives the time sync beacons and determines a delta between the current time slot number of the child node and the current time slot number of the parent node. The child node also computes an offset between a start time of the current slot of the child node and the start time of the current slot of the parent node. The child node reports the delta and the offset to the parent node. Based on the delta and the offset, the parent node determines when, and on what channel, the child node is predicted to be receiving transmissions, and then schedules transmissions to the child node accordingly.

公开(公告)号：US20240250880A1

公开(公告)日：2024-07-25

申请号：US18159018

申请日：2023-01-24

Applicant: ITRON, INC.

Inventor： Khalid MAALLEM ,  Jérôme BARTIER ,  Fabrice MONIER ,  Samuel DE VALS

IPC: H04L41/12 ,  H04W40/02

CPC classification number: H04L41/12 ,  H04W40/02

Abstract: Various embodiments disclosed herein provide communication techniques for transferring datasets in a mesh network. In various embodiments, a method includes transmitting, by a server computing device controlling a mesh network, a dataset to a first node in the mesh network; transmitting, by the server computing device, first notifications to respective second nodes that are neighbors to the first node in the mesh network, the first notifications informing the respective second nodes that the dataset is available for download; and in response to determining that a third node from the respective second nodes has received the dataset, transmitting, by the server computing device, second notifications to respective fourth nodes that are neighbors to the first node in the mesh network or are neighbors to the third node in the mesh network, the second notifications informing the respective fourth nodes that the dataset is available for download.

公开(公告)号：US20230156800A1

公开(公告)日：2023-05-18

申请号：US17527020

申请日：2021-11-15

Applicant: ITRON, INC.

Inventor： Jerome BARTIER ,  Fabrice MONIER ,  Yacine KHALED

IPC: H04W74/08 ,  H04L1/08 ,  H04L12/26

CPC classification number: H04W74/0825 ,  H04L1/08 ,  H04L43/0852 ,  H04W84/18

Abstract: Various embodiments disclose a method comprising receiving, at a first node, a listening schedule associated with a second node; determining, by the first node, a link latency associated with the second node based on the listening schedule; in response to the first node detecting a frame transmission failure for a frame being transmitted by the first node to the second node, determining, by the first node based on the link latency, a backoff time; and in response to the first node determining that the backoff time has elapsed, the first node retransmitting the frame from the first node to the second node. In some embodiments, the method also includes determining a frame lifetime value associated with the second node based on the link latency; and in response to determining that a time period corresponding to the frame lifetime value has elapsed, dropping the frame.

公开(公告)号：US20230052930A1

公开(公告)日：2023-02-16

申请号：US17979558

申请日：2022-11-02

Applicant: ITRON, INC.

Inventor： Fabrice MONIER ,  Keith Wayne BARNES ,  Imad JAMIL ,  Thomas UHLING

IPC: H04L69/22 ,  H04L69/16 ,  H04L69/12

Abstract: One embodiment of the present invention sets forth a technique for processing packets transmitted within a network in accordance with a network protocol. The technique includes a network device in a mesh network receiving a type-length-value (TLV) element, determining, based on a type field of the TLV element, an expected length of a value field of the TLV element, and processing the value field up to the expected length.

公开(公告)号：US20220201101A1

公开(公告)日：2022-06-23

申请号：US17133227

申请日：2020-12-23

Applicant: ITRON, INC.

Inventor： Fabrice MONIER ,  Keith Wayne BARNES ,  Imad JAMIL ,  Thomas UHLING

IPC: H04L29/06

Abstract: One embodiment of the present invention sets forth a technique for processing packets transmitted within a network in accordance with a network protocol. The technique includes determining a first expected length of a value field included in a type-length-value (TLV) element within a first frame of a first packet received over the network, wherein the first expected length is based on a type field included in the TLV element. The technique also includes processing a first portion of the value field based on the expected length of the value field in accordance with a first specification for a first version of the network protocol, without processing a second portion of the value field beyond the expected length of the value field.

公开(公告)号：US20200021969A1

公开(公告)日：2020-01-16

申请号：US16035535

申请日：2018-07-13

Applicant: Itron, Inc.

Inventor： Thomas UHLING ,  Imad JAMIL ,  Fabrice MONIER ,  Keith Wayne BARNES

IPC: H04W8/00 ,  H04W40/24 ,  H04W72/04 ,  H04W4/80 ,  H04L12/733

Abstract: A wireless network includes a plurality of nodes configured to implement an improved discovery process to efficiently and reliably pair with one another with low power consumption. A given node divides time into slots and then performs discovery operations during designated discovery windows. The discovery windows occur periodically but at different times of day. During a given discovery window, nodes attempt discovery using a reduced set of channels that varies from one window to the next, thereby increasing the likelihood that nodes operate on the same channel. Nodes also implement a pairing protocol to coordinate pairing, potentially avoiding situations where all nodes attempt to pair simultaneously. The discovery process may be completed expeditiously, thereby conserving power and extending the operational lifetime of nodes which rely on battery power.

公开(公告)号：US20200021968A1

公开(公告)日：2020-01-16

申请号：US16035533

申请日：2018-07-13

Applicant: Itron, Inc.

Inventor： Thomas UHLING ,  Imad JAMIL ,  Fabrice MONIER ,  Keith Wayne BARNES

IPC: H04W8/00 ,  H04W4/80 ,  H04W72/04 ,  H04W52/02

Abstract: A wireless network includes a plurality of nodes configured to implement an improved discovery process to efficiently and reliably pair with one another with low power consumption. A given node divides time into slots and then performs discovery operations during designated discovery windows. The discovery windows occur periodically but at different times of day. During a given discovery window, nodes attempt discovery using a reduced set of channels that varies from one window to the next, thereby increasing the likelihood that nodes operate on the same channel. Nodes also implement a pairing protocol to coordinate pairing, potentially avoiding situations where all nodes attempt to pair simultaneously. The discovery process may be completed expeditiously, thereby conserving power and extending the operational lifetime of nodes which rely on battery power.