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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.
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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
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.
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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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15.发明公开公开(公告)号：US20230156582A1
公开(公告)日：2023-05-18
申请号：US17527051
申请日：2021-11-15
Applicant: ITRON, INC.
Inventor： Fabrice MONIER , Jerome BARTIER , Yacine KHALED , Imad JAMIL , Khalid MAALLEM , Samuel DE VALS
IPC: H04W48/00 , H04W48/10 , H04B1/7183 , H04B1/7143 , H04W72/04 , H04L5/00
CPC classification number: H04W48/17 , H04W48/10 , H04B1/7183 , H04B1/7143 , H04W72/0446 , H04L5/0005
Abstract: Various embodiments disclose a method that includes: attempting to detect, with a first transceiver associated with a first node, a network discovery signal, wherein the attempting is performed according to (a) a first listening schedule associated with a first physical layer mode and (b) a second listening schedule associated with a second physical layer mode; detecting, with the first transceiver, the network discovery signal during a slot associated with the first listening schedule; and in response to detecting the network discovery signal, establishing, with the first node, a connection between the first node and the second node using the first physical layer mode.
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Patent Agency Ranking
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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公开(公告)号：US20250141793A1
公开(公告)日：2025-05-01
申请号：US19006798
申请日：2024-12-31
Applicant: ITRON, INC.
Inventor： Thomas F. UHLING , Keith Wayne BARNES , Howard Neal BRACE , Imad JAMIL , Fabrice MONIER
Abstract: Techniques for implementing a network protocol for battery-powered devices (BPDs) include a method performed by a BPD node comprising identifying one or more first potential parent nodes in a BPD subtree within a wireless network; selecting a first parent node from the one or more of first potential parent nodes; transmitting, to a root BPD node of the BPD subtree, a first request to join to the BPD subtree via the first parent node, the root BPD node connecting the BPD subtree to a main network, wherein the BPD subtree is managed according to a first set of subtree parameters different from a second set of subtree parameters for subtrees of the main network; receiving, by the BPD node, a response to the first request from the first parent node; and determining, based on the response, whether to connect to the BPD subtree through the first parent node.
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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
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.
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