Itron Gmbh

Itron Global Sarl

Alcatel Lucent

Alcatel

Daniel Popa

Mehdi Mani

Michael T Garrison Stuber

Viet-Hung Nguyen

Fabrice Monier

Jerome Bartier

Jorjeta Gueorguieva Jetcheva

Giovanna Carofiglio

Hartman Van Wyk

Dominique Chiaroni

Bastien Mainaud

Nicolas Le Sauze

Thierry Zami

Emmanuel Dotaro

Vladimir Borisov

Laurent Ciavaglia

Annalisa Morea

Georg Post

Arnaud Dupas

Dhia Saleem

Pascal Pecci

A new device is deployed to an area in which a network is provided. The new device may join the network using a single handshake via a neighboring device that is a member of the network and register with a network management system managing the network. If the network is overloaded or has limited bandwidth remaining, the network may refuse to admit the new device, or if the new device is isolated, may force some devices that are members of the network to leave or migrate from the network to allow the isolated device to join the network.

Efficient device handover/migration in mesh networks

Authentication using DHCP services in mesh networks

Techniques for utilizing near field communications (NFC) with utility meters are described herein. In one example, a meter is configured for operation, either in a stand-alone or utility network capacity. The example meter may include a processor in communication with a memory device and a tag device configured for near field communication (NFC). In operation, the processor operates the tag device to read from the memory device to obtain data for transmission via NFC and/or write data obtained via NFC to the memory device.

Near field communications for utility meters

Techniques for communicating via a control channel, determining a particular data channel based on the communicating, and transferring data via the particular data channel are described. One or more messages are communicated via the control channel between first and second nodes. The one or more messages may indicate a particular data channel from multiple data channels that may be utilized to transfer data between the first and second nodes. The one or more messages may also indicate a modulation technique and/or data rate that may be implemented on the particular data channel. The one or more messages may be utilized to determine the particular data channel that will be utilized to transfer the data. The first and second nodes may switch to the particular data channel based on the determination and transfer the data via the particular data channel.

Multi-channel, multi-modulation, multi-rate communication with a radio transceiver

In a network environment, a node may measure and/or recognize network activity or congestion and send feedback to downstream nodes (i.e., higher rank nodes) in response. During periods of lower network activity, lower congestion and/or lower network load, the feedback may direct an upstream flow of packets to be transmitted at a quality of service (QoS) level that allows consumption of more bandwidth than is indicated by a QoS level associated with a service level agreement (SLA) of the upstream flow of packets. During periods of higher network activity, congestion and/or network load, the feedback may limit the upstream flow of packets to the QoS level associated with the SLA of the upstream flow of packets. Accordingly, an upstream node (e.g., a root node) may use feedback to regulate bandwidth used by one or more downstream nodes and/or flows of packets, in part using network activity, congestion and/or bandwidth availability.

Bandwidth management in an advanced metering infrastructure

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.

Efficient multicast in a smart grid

Methodologies are provided for establishing peer-to-peer communications between nodes in a tree structured network having plural nodes including a root node. A source node seeking to send a message to a destination node will first request a most advantageous available path from the source to the destination node, and then the root node (or possibly another node within the network that has additional storage resources) will provide a routing path to one or both of the source and destination nodes. Messages may then be sent between the source and destination nodes that may or may not include addressing information in the packet headers without having to request routing information again for additional messages between the same nodes.

Peer-to-peer communications in AMI with source-tree routing

The present invention relates to a method for demultiplexing MAC service data units encapsulated into MAC protocol data units, said MAC service data units comprising IP protocol data unit wherein said method comprises the following steps:

Method and equipment for demultiplexing variable size protocol data units

A communications station (-) for a WDM ring network is adapted to insert into an optical fiber () packets of optical signals carried by at least one wavelength and having a propagation direction in common with at least one other communications station. The station (-) comprises, firstly, optical detection means () adapted to observe the traffic in said optical fiber () associated with said common wavelength and to deliver detection signals representative of the absence of packets in the optical fiber () at the detected wavelength for a duration exceeding a duration threshold and ii) control means () adapted, in the event of reception of a detection signal associated with the detected wavelength to determine the remaining time before the end of the current session, and then to instruct the insertion into the optical fiber () of a packet awaiting transmission, at the detected wavelength, if the remaining time before the end of the current session is greater than the time necessary for inserting the packet awaiting transmission into the fiber.

Optical network with a void filling protocol independent of bit rate

Growing community of inventors

Paris, France

Daniel Popa