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    POWER-EFFICIENT PASSIVE DISCOVERY BY NETWORK DEVICES
    21.
    发明申请
    POWER-EFFICIENT PASSIVE DISCOVERY BY NETWORK DEVICES 有权

    公开(公告)号：US20210067942A1

    公开(公告)日：2021-03-04

    申请号：US16555642

    申请日：2019-08-29

    Applicant: Itron, Inc.

    Inventor： Fabrice Monier ,  Thomas Uhling ,  Imad Jamil ,  Keith Barnes

    IPC: H04W8/00 ,  H04W40/24 ,  H04W72/04 ,  H04W52/02

    Abstract: Disclosed are techniques to minimize the electricity consumption of battery powered devices during network discovery and other phases of network operation. Example techniques include efficiently listening for other mains powered and battery powered devices within communication range of the battery powered device by, for example, shortening its listening window depending on how close the time reference maintained by the battery powered device is estimated to be to the time reference used by the other mains powered and battery powered devices within communication range. Other techniques include slowing the rate of listening by the battery powered device when the battery powered device is unlikely to be able to receive discovery messages or is already connected to the network. Other techniques include using knowledge of the network to listen for discovery messages on a channel or channels on which other devices are likely to be transmitting.

    Electrical Phase Computation Using RF Media
    22.
    发明申请
    Electrical Phase Computation Using RF Media 审中-公开

    公开(公告)号：US20200382155A1

    公开(公告)日：2020-12-03

    申请号：US16425626

    申请日：2019-05-29

    Applicant: Itron, Inc.

    Inventor： Philippe Chiummiento ,  Matthieu Pichot ,  Guillaume Descamps ,  Fabrice Monier

    IPC: H04B1/7073 ,  H04W72/04 ,  H04L7/033 ,  H04L7/00 ,  H04W4/38 ,  H04Q9/00

    Abstract: Techniques for computing electrical phase of electrical metering devices are described. In an example, data indicating zero-crossing times at first and second metering devices is obtained. A time-difference between the zero-crossing times may be determined. In a first example, the time-difference may be based at least in part on calculations involving a first value of a first free-run timer on a first metering device, a second value of a second free-run timer on a second metering device, and a time of a transmission between the metering devices. In a second example, the time-difference may be based at least in part on calculations involving a start or end time of a time-slot of a spread spectrum radio frequency transmission scheme. A phase difference between the first zero-crossing and the second zero-crossing may be determined, based at least in part on the determined time-difference.

    Frame compatibility across network protocol versions
    25.
    发明授权
    Frame compatibility across network protocol versions 有权

    公开(公告)号：US11516320B2

    公开(公告)日：2022-11-29

    申请号：US17133227

    申请日：2020-12-23

    Applicant: ITRON, INC.

    Inventor： Fabrice Monier ,  Keith Wayne Barnes ,  Imad Jamil ,  Thomas Uhling

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

    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.

    Electrical Phase Computation Using RF Media
    26.
    发明申请
    Electrical Phase Computation Using RF Media 有权

    公开(公告)号：US20220376737A1

    公开(公告)日：2022-11-24

    申请号：US17817283

    申请日：2022-08-03

    Applicant: Itron, Inc.

    Inventor： Philippe Chiummiento ,  Matthieu Pichot ,  Guillaume Descamps ,  Fabrice Monier

    IPC: H04B1/7073 ,  H04W72/04 ,  H04L7/033 ,  H04W4/38 ,  H04Q9/00 ,  H04L7/00

    Abstract: A method includes computing electrical phase of electrical metering devices including obtaining data indicating zero-crossing times at first and second metering devices. A time difference between the zero-crossing times may be determined. In a first example, the time difference may be based at least in part on calculations involving a first value of a first free-run timer on a first metering device, a second value of a second free-run timer on a second metering device, the time of reception of a packet, and a latency defined by a time taken for the packet to propagate through at least one layer of at least one of the first metering device and the second metering device. A phase difference between the first zero-crossing and the second zero-crossing may be determined, based at least in part on the determined time difference.

    Power-efficient discovery process for nodes within a wireless mesh network
    27.
    发明授权
    Power-efficient discovery process for nodes within a wireless mesh network 有权

    公开(公告)号：US10911929B2

    公开(公告)日：2021-02-02

    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 ,  H04W52/02 ,  H04W72/04 ,  H04W84/18 ,  H04W84/12

    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.

    DATA BROADCASTING WITH A PREPARE-TO-BROADCAST MESSAGE
    29.
    发明申请
    DATA BROADCASTING WITH A PREPARE-TO-BROADCAST MESSAGE 审中-公开
    数据广播与准备广播消息

    公开(公告)号：US20140321384A1

    公开(公告)日：2014-10-30

    申请号：US14323782

    申请日：2014-07-03

    Applicant: Itron, Inc.

    Inventor： Viet-Hung Nguyen ,  Jerome Bartier ,  Fabrice Monier ,  Bastien Mainaud

    IPC: H04W72/00 ,  H04B1/713

    CPC classification number: H04W72/005 ,  H04B1/713 ,  H04W72/04 ,  H04W72/0406

    Abstract: Techniques for broadcasting data in a multi-channel network having a control channel and multiple data channels are described. A node wishing to broadcast data may determine a particular data channel from among the multiple data channels, a modulation technique, and a data rate to be utilized to broadcast the data. The broadcasting node may transmit a message over the control channel indicating that the data will be broadcast on the particular data channel using the modulation technique and at the determined data rate. The broadcasting node and a node wishing to receive the data may switch to the particular data channel. The broadcast node may broadcast the data over the particular data channel, while the receiving node may receive the data. After broadcasting the data or a predetermined time period has expired, the broadcasting node and receiving node may switch to the control channel.

    Abstract translation: 描述了在具有控制信道和多个数据信道的多信道网络中广播数据的技术。 希望广播数据的节点可以从多个数据信道中确定特定数据信道，调制技术和用于广播数据的数据速率。 广播节点可以通过控制信道发送指示使用调制技术并以确定的数据速率在特定数据信道上广播数据的消息。 广播节点和希望接收数据的节点可以切换到特定的数据信道。 广播节点可以在特定数据信道上广播数据，而接收节点可以接收数据。 在广播数据或预定时间段已经过去之后，广播节点和接收节点可以切换到控制信道。

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