Orange

France Telecom

Yvon Gourhant

Patrick Battistello

Djamal-Eddine Meddour

Laurent Reynaud

Moez Jerbi

Sidi-Mohammed Senouci

Fanny Parzysz

Tinku Mohamed-Rasheed

Yacine Ghamri-Doudane

Quentin Loudier

Tinku Create-Net Research Mohamed-Rasheed

Riadh Kortebi

Nazim Agoulmine

A method for controlling a base station of a radiocommunications network multiplexing data in time intervals, each having at least one synchronization time portion and at least one user data time portion organized in time-distributed and frequency-distributed blocks of resources. The method includes, for at least certain of the time intervals: dividing the user data time portion into at least two sub-portions, one active time sub-portion, capable of grouping together resource blocks to be sent out, and at least one time sub-portion that contains no resource blocks used, called an inactive time sub-portion; and putting the base station to sleep for at least one part of the duration of the inactive time sub-portion or sub-portions.

Method for placing a base station on standby, computer program product, device, corresponding base station and signal

A method for routing in a multihop network comprises, for at least one multihop network node: a/ obtaining a value of an electromagnetic field near said node; b/ predetermining a ratio between said obtained value and a predefined electromagnetic field threshold value; c/ using the predetermined ratio to optionally select said node as a routing node for at least one message in the multihop network.

Routing adaptable to electromagnetic conditions in a multihop network

Disclosed is a periodic broadcasting of data packets in an ad hoc network formed by a plurality of mobile nodes that can move along traffic lanes forming junctions and can be located. A data packet is broadcast by a broadcaster node elected from a set of candidate nodes at each junction. The broadcaster node is elected in a decentralized manner at each candidate node by comparing the estimated travel time to reach the center of the junction with a particular reference time period between two successive broadcasts.

Method of broadcasting data packets in a network of mobile nodes and associated terminal

A method of organizing nodes of a network into clusters of nodes comprises a step () of calculating, for each node, a weight, representing the aptness of this node to be the master node of a grouping, and a step () of electing a master node of a grouping, such that the weight of this master node is greater than or equal to the weights of the other nodes of the grouping. The method furthermore comprises a step () of storing, in each node, an information cue () containing an identifier of the node of highest weight known by this node and the value of this highest weight, a step () of transmitting, by each node to nodes adjacent to this node, the information cue () stored in this node, and a step () of comparing, for each node, the information cues () transmitted to this node during the transmitting step () with the information cue stored in this node, so as to determine a new node of highest weight known by this node. The steps of storing (), transmitting () and comparing () are repeated successively a predetermined number (k) of times, on conclusion of which the step () of electing a master node is carried out, in the course of which a node (M) whose stored information cue contains its own identifier is chosen to be a master node.

Method of organizing nodes of a network into groupings of nodes, computer program for implementing such a method and communication device forming a node of a network of nodes

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Lannion, France

Yvon Gourhant