Orange

France Telecom

Isabelle Auge-Blum

Dominique Barthel

Quentin Lampin

Fabrice Valois

Michael Dohler

Abdelmalik Bachir

Thomas Watteyne

A data communication method implemented by a sensor node of a telecommunications network including a plurality of sensor nodes and a concentrator node, which share a communication channel. The method includes: selecting a time interval in a contention window including a plurality of time intervals and preceding a transmission period including a plurality of transmission intervals; emitting a request signal during the selected time interval to the concentrator node; receiving a response signal carrying encoded information representing an ordered combination of the intervals marked during which the signals were received by the concentrator node; determining a transmission rank according to a number of intervals marked by the concentrator node; and deciding to emit data to the concentrator node in the transmission period when the transmission rank is lower than or equal to the number of intervals of the transmission period.

Communications method, a communications management method, and associated devices and nodes

A method for a node to transmit data in a telecommunications network is disclosed. In one method aspect, it comprises, selecting a time slot j in a window having a plurality of time slots and preceding a transmission period, listening to time slots preceding the time slot j, wherein the transmission period presents a plurality of transmission channels. Furthermore, the method comprises counting a number of time-slot transmissions during the time slots preceding the time slot j wherein when the number of time-slot transmissions is greater than a threshold, the data transmission is postponed or cancelled. Furthermore, when the number of time-slot transmissions is less than or equal to the threshold, a transmission is made during the time slot j, and one of the transmission channels is determined as a function of the number of time-slot transmissions.

Communication method

Method of communication, on a radio channel in a network comprising a plurality of telecommunications nodes with which are associated respective values of a metric, including emitting, from a first node, a request on the radio channel, and subsequent to the receipt of the request by at least one second node, emitting a response message with a delay determined as a function of the metric value associated with said second node.

Method of communication, emitter and receiver stations and associated computer programs

Growing community of inventors

Villeurbanne, France

Isabelle Auge-Blum