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.

公开(公告)号：US20240357024A1

公开(公告)日：2024-10-24

申请号：US18761928

申请日：2024-07-02

Applicant: ITRON, INC.

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

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

CPC classification number: H04L69/22 ,  H04L69/12 ,  H04L69/16

Abstract: One embodiment of the present invention sets forth techniques for processing packets transmitted within a network in accordance with a network protocol. The techniques include receiving, by a network device in a mesh network, a type-length-value (TLV) element; determining, by the network device based on both a first type identified in a type field of the TLV element and a value in at least one sub-field of a value field of the TLV element, an expected length of the value field of the TLV element; and processing, by the network device, the value field up to the expected length.

公开(公告)号：US20240040493A1

公开(公告)日：2024-02-01

申请号：US18484072

申请日：2023-10-10

Applicant: ITRON, INC.

Inventor： Fabrice MONIER ,  Jerome BARTIER ,  Yacine KHALED ,  Imad JAMIL ,  Khalid MAALLEM ,  Samuel DE VALS

IPC: H04W48/00 ,  H04W48/10 ,  H04L5/00 ,  H04B1/7143 ,  H04W72/0446 ,  H04B1/7183

CPC classification number: H04W48/17 ,  H04W48/10 ,  H04L5/0005 ,  H04B1/7143 ,  H04W72/0446 ,  H04B1/7183

Abstract: Various embodiments disclose techniques for time-multiplexing multiple listening schedules and physical layer modes that include a first node listening, using a first physical layer mode, for a first network discovery signal; in response to not detecting the first network discovery signal, listening, using a second physical layer mode, for a second network discovery signal; and in response to detecting the second network discovery signal transmitted by a second node using the second physical layer mode, establishing a connection with the second node using the second physical layer mode.

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：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

IPC: H04J3/06 ,  H04L12/26

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.

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：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

CPC classification number: H04L45/74 ,  H04L67/12

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.