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11. 发明专利

CA3106150A1 POWER-EFFICIENT DISCOVERY PROCESS FOR NODES WITHIN A WIRELESS MESH NETWORK 未知
公开(公告)号：CA3106150A1
公开(公告)日：2020-01-16
申请号：CA3106150
申请日：2019-07-09
申请人： ITRON INC
发明人： UHLING THOMAS , JAMIL IMAD , MONIER FABRICE , BARNES KEITH WAYNE
IPC分类号： H04W4/00 , H04W84/12 , H04W84/18 , H04W84/20
摘要： 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.

12. 发明专利

CA3104895A1 TECHNIQUES FOR MAINTAINING NETWORK CONNECTIVITY IN WIRELESS MESH NETWORKS 未知
公开(公告)号：CA3104895A1
公开(公告)日：2020-01-02
申请号：CA3104895
申请日：2019-06-06
申请人： ITRON INC
发明人： UHLING THOMAS , JAMIL IMAD , MONIER FABRICE , BARNES KEITH WAYNE
IPC分类号： H04W72/12 , H04B7/005 , H04W40/02
摘要： 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.

13. 发明专利

AU2022203078A1 Time synchronization of mesh network nodes 未知
公开(公告)号：AU2022203078A1
公开(公告)日：2022-12-08
申请号：AU2022203078
申请日：2022-05-09
申请人： ITRON INC
发明人： UHLING THOMAS F , BARNES KEITH WAYNE , BRACE HOWARD NEAL , JAMIL IMAD
IPC分类号： H04W48/16 , H04W56/00 , H04W72/12 , H04W74/04 , H04W84/18
摘要： TIME SYNCHRONIZATION OF MESH NETWORK NODES One embodiment of the present invention sets forth a technique for performing time synchronization within a network. The technique includes receiving (402), 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 (404) 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 (406) 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. 39540088_1 Start Determine a first transmission time of a first periodic beacon from a first node based on a current network time and a beaconing interval Estimate a second transmission time of a second periodic beacon from a second node based on timing information for the second node in a neighborhood table Scheduling conflict between the first es transmission time and a listening window for the second periodic beacon? Yes Determine an alternate 1106 transmission time for the second periodic beacon No Calculate a second listening IF window associated with Listen for the second periodic beacon transmission of the second periodic during the first listening window beacon at the alternate 1114 transmission time Listen for the second periodic beacon during the second listening window Continue 1 =:: resolving scheduling confllicts No Fir. 11

14. 发明专利

AU2022203026A1 Resolving beacon transmission conflicts in mesh network nodes 未知
公开(公告)号：AU2022203026A1
公开(公告)日：2022-12-08
申请号：AU2022203026
申请日：2022-05-05
申请人： ITRON INC
发明人： UHLING THOMAS F , BARNES KEITH WAYNE , BRACE HOWARD NEAL , JAMIL IMAD
IPC分类号： H04W56/00 , H04W48/16 , H04W74/04
摘要： RESOLVING BEACON TRANSMISSION CONFLICTS IN MESH NETWORK NODES 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 (906) 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 (910) 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 (912). 39518603_1 Start Determine a first transmission time of a first periodic beacon from a first node based on a current network time and a beaconing interval Estimate a second transmission time of a second periodic beacon from a second node based on timing information for the second node in a neighborhood table Scheduling conflict between the first es transmission time and a listening window for the second periodic beacon? Yes Determine an alternate 1106 transmission time for the second periodic beacon No Calculate a second listening IF window associated with Listen for the second periodic beacon transmission of the second periodic during the first listening window beacon at the alternate 1114 transmission time Listen for the second periodic beacon during the second listening window Continue 1 =:: resolving scheduling confllicts No Fir. 11

15. 发明专利

CA3160661A1 UNICAST TRANSMISSIONS IN MESH NETWORK NODES 未知
公开(公告)号：CA3160661A1
公开(公告)日：2022-11-20
申请号：CA3160661
申请日：2022-05-12
申请人： ITRON INC
发明人： UHLING THOMAS F , BARNES KEITH WAYNE , BRACE HOWARD NEAL , JAMIL IMAD
IPC分类号： H04L69/28 , H04W74/04
摘要： 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.

16. 发明专利

CA3158829A1 RESOLVING BEACON TRANSMISSION CONFLICTS IN MESH NETWORK NODES 未知
公开(公告)号：CA3158829A1
公开(公告)日：2022-11-20
申请号：CA3158829
申请日：2022-05-10
申请人： ITRON INC
发明人： UHLING THOMAS F , BARNES KEITH WAYNE , BRACE HOWARD NEAL , JAMIL IMAD
IPC分类号： H04L7/00 , H04W56/00
摘要： 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.

17. 发明专利

AU2019301627A1 Power-efficient discovery process for nodes within a wireless mesh network 未知
公开(公告)号：AU2019301627A1
公开(公告)日：2021-01-21
申请号：AU2019301627
申请日：2019-07-09
申请人： ITRON INC
发明人： UHLING THOMAS , JAMIL IMAD , MONIER FABRICE , BARNES KEITH WAYNE
IPC分类号： H04W4/00 , H04W84/12 , H04W84/18 , H04W84/20
摘要： 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.

18. 发明专利

CA3104898A1 COORDINATING COMMUNICATIONS BETWEEN NODES HAVING ASYNCHRONOUS TIME SLOT SCHEDULES 未知
公开(公告)号：CA3104898A1
公开(公告)日：2020-01-02
申请号：CA3104898
申请日：2019-06-11
申请人： ITRON INC
发明人： UHLING THOMAS , JAMIL IMAD , MONIER FABRICE , BARNES KEITH WAYNE
IPC分类号： H04W72/04 , H04W72/02 , H04W72/12
摘要： 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.

19. 发明公开

EP2878101A4 RELAYING INFORMATION FOR AN UNRELIABLY HEARD UTILITY NODE 有权
标题翻译：重发信息FOR SUPPLY不可靠KNOT
公开(公告)号：EP2878101A4
公开(公告)日：2016-01-20
申请号：EP13823544
申请日：2013-05-15
申请人： ITRON INC
发明人： OSTERLOH CHRISTOPHER LLOYD , CUMERALTO SCOTT L , BARNES KEITH WAYNE , GRINDHAL MERV
IPC分类号： H04L12/28 , H04L12/24 , H04L12/26 , H04L12/44 , H04L12/707
CPC分类号： H04L41/0668 , H04L43/0811 , H04L43/0817 , H04L45/22 , H04L45/28 , Y02B90/246 , Y04S20/42
摘要： Data of a utility node that is unreliably heard may be relayed through another utility node. In some examples, utility nodes of a star network may attempt to transmit data to a collector, a repeater, a relay, a router, or a mobile device. When it is determined that a utility node is unable to reliably transmit data, a relay relationship may be established so that data of the unreliable utility node is relayed through the network.

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