公开(公告)号：US20190165964A1

公开(公告)日：2019-05-30

申请号：US15824696

申请日：2017-11-28

Applicant: Itron, Inc.

Inventor： Jerome Bartier ,  James Laurence Taylor ,  Viet-Hung Nguyen

IPC: H04L12/18 ,  H04L12/801 ,  H04L12/813

Abstract: Techniques for limiting forwarding of multicast communications are described herein. For example, the techniques intelligently forward data along paths of a network where members of a multicast group are located. As such, nodes that do not lead to members of the multicast group may be pruned from distribution of the data. This reduces network communications, ultimately conserving processing, communication, and/or battery resources of the nodes.

公开(公告)号：US20130315057A1

公开(公告)日：2013-11-28

申请号：US13648039

申请日：2012-10-09

Applicant: ITRON, INC.

Inventor： Daniel Popa ,  Jorjeta Gueorguieva Jetcheva ,  Mehdi Mani ,  Bastien Mainaud ,  Viet-Hung Nguyen

IPC: H04L12/24 ,  H04L12/26 ,  H04L12/56

CPC classification number: H04L12/185 ,  H04L12/1863 ,  H04L12/1886

Abstract: In a wireless and/or power line communication (PLC) network environment, techniques for multicast of data and management of multicast groups assist in regulating bandwidth consumption and provision of desired multicast data. Nodes indicate interest in multicast groups by transmission of reports upstream. Report transmission may be suppressed to balance bandwidth with need for multicast data. Multicast data packets may be retransmitted downstream to fulfill requests indicated by the reports at a rate and/or frequency based on multicast packet duplication or redundancy. Information, such as broken links or “leave” packets, may indicate that one or more downstream nodes should be removed from a forwarding state. However such removal may impact other nodes. A query may be transmitted downstream, to determine if retransmission/forwarding of multicast retransmissions should continue. Query transmission may be based on a balance between query bandwidth consumption and the needs of downstream nodes.

Abstract translation: 在无线和/或电力线通信（PLC）网络环境中，用于多播数据和多播组管理的技术有助于调节带宽消耗和提供期望的多播数据。 节点通过上传报告来表示对多播组的兴趣。 可以抑制报告传输，以平衡具有组播数据需求的带宽。 多播数据分组可以在下游重传，以基于多播分组复制或冗余的速率和/或频率来满足报告所指示的请求。 诸如断开的链接或“离开”分组之类的信息可以指示一个或多个下游节点应当从转发状态移除。 但是这种删除可能会影响其他节点。 可以向下游发送查询，以确定是否应继续重传/转发多播重传。 查询传输可以基于查询带宽消耗与下游节点需求之间的平衡。

公开(公告)号：US10958460B2

公开(公告)日：2021-03-23

申请号：US16143109

申请日：2018-09-26

Applicant: Itron, Inc.

Inventor： James Laurence Taylor ,  Jerome Bartier ,  Viet-Hung Nguyen

IPC: H04L12/18 ,  H04L12/721 ,  H04W84/18

Abstract: Techniques for connecting networks to facilitate distribution of data are described. For example, to distribute multicast data to members of a multicast group that span multiple networks, the techniques may identify a path between networks that each have a member of the multicast group, such as a shortest path between networks. The techniques may inform the networks on the path to establish a connection with an adjacent network. This may allow multicast data for a multicast group to be distributed to members of the multicast group that are located in separate networks.

公开(公告)号：US20200099616A1

公开(公告)日：2020-03-26

申请号：US16143149

申请日：2018-09-26

Applicant: Itron, Inc.

Inventor： Viet-Hung Nguyen ,  Jerome Bartier ,  James Laurence Taylor

IPC: H04L12/745 ,  H04L12/66 ,  H04L29/12 ,  H04L29/06

Abstract: Source routing techniques include sending data across several networks, while limiting source routing overhead. For example, the source routing techniques may use a first address format to route data to nodes along a routing path that are within a first network where a source node is located, and use a second address format to route the data to a node along the routing path that is within a second, different network. The node in the second network may similarly route the data through the second network using the first address format for nodes within the second network and, if needed, route the data to a node within a third network using the second address format. This may be repeated for any number of networks to reach a destination.

公开(公告)号：US20190165961A1

公开(公告)日：2019-05-30

申请号：US15824817

申请日：2017-11-28

Applicant: Itron, Inc.

Inventor： Jerome Bartier ,  James Laurence Taylor ,  Viet-Hung Nguyen ,  Hartman Van Wyk

IPC: H04L12/18 ,  H04L12/66 ,  H04L12/761

CPC classification number: H04L12/185 ,  H04L12/66 ,  H04L45/16

Abstract: Techniques for bridging communication between multiple networks to facilitate distribution of multicast data are described herein. For example, the techniques may identify a particular node that is able to communicate with each network and instruct the particular node to act as a bridge between the networks. The particular node may forward data from either network to the other network. This may allow data for a multicast group to be distributed to members of the multicast group that are located in separate networks.

公开(公告)号：US20150181500A1

公开(公告)日：2015-06-25

申请号：US14634696

申请日：2015-02-27

Applicant: Itron, Inc.

Inventor： Bastien Mainaud ,  Viet-Hung Nguyen ,  Hartman Van Wyk ,  John Buffington

IPC: H04W40/12 ,  H04L12/26 ,  H04B3/46

CPC classification number: H04W40/12 ,  H04B3/46 ,  H04L43/08 ,  H04L43/0823 ,  H04W36/26 ,  H04W84/18 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/22 ,  Y02D70/34

Abstract: A node having a multiple protocol receiver may listen to multiple links in parallel and determine a quality of links having multiple communication technologies between the node and multiple neighbor nodes. The multiple communication technologies may include radio frequency (RF) communication technologies and one or more power line communication (PLC) communication technologies. The node determines a link quality metric for each link associated with an optimum communication technology and data rate, and maintains availability information of neighbor nodes. The node may then route communications to neighbor nodes using the link quality metric and the availability information.

Abstract translation: 具有多协议接收器的节点可以并行侦听多个链路，并且确定在节点和多个相邻节点之间具有多个通信技术的链路的质量。 多种通信技术可以包括射频（RF）通信技术和一种或多种电力线通信（PLC）通信技术。 节点确定与最佳通信技术和数据速率相关联的每个链路的链路质量度量，并维护邻居节点的可用性信息。 然后，节点可以使用链路质量度量和可用性信息将通信路由到邻居节点。