Abstract: A method for wireless communication between a plurality of transmitter devices and at least one receiver device using a repeater device on the surface of the Earth. Messages transmitted by transmitter devices and received by the repeater device are collected by the repeater during a collection window. The messages received during the collection window are retransmitted to the receiver device by the repeater device. The messages received during the collection window are retransmitted so that at least two messages received non-simultaneously are retransmitted simultaneously to the receiver device.

Abstract: A method for transmitting a message via an access network to a group of terminals is provided. The access network transmits the message to the group of terminals over a broadcast channel. The access network receives a request for retransmission of the message transmitted from a terminal that has not correctly received the message. The access network evaluates a predetermined broadcast retransmission criterion and retransmits the message over a point-to-point link or over a broadcast channel according to the predetermined broadcast retransmission criterion.

Abstract: A method for geolocating a terminal of a wireless communication system. The terminal includes a positioning device for obtaining a precise geographical position of the terminal. An access network of the communication system estimates an approximate geographical position of the terminal. In order to limit the size of the messages exchanged between the terminal and the access network, only a truncated part of the information about the precise geographical position of the terminal is transmitted by the terminal to the access network. The access network determines the precise geographical position of the terminal by combining the truncated information received from the terminal with the approximate geographical position estimated by the access network.

Abstract: A method for achieving wireless communication between a transmitter and a receiver via a repeater device. The value of a first physical property of a message received from the transmitter is measured by the repeater device. The value of a second physical property to be used for the retransmission of the message is determined by the repeater device depending on the value of the first physical property measured for the received message. The message is retransmitted to the receiver by the repeater device using the determined value of the second physical property.

Abstract: A method for estimating the geographical position of a terminal of interest, among a panel of terminals of a wireless communication system. For each terminal of the panel, a time signature including values measured for each terminal during a predetermined observation period is determined. Values of similarity between the time signatures of the terminals of the panel is calculated, a similarity value calculated for two terminals representing the probability of the terminals being moved together or having been located at the same place during the observation period. Various terminals of the panel are partitioned into different groups depending on the similarity values. The geographical position of the terminal of interest is estimated as a function of the available geolocation data for at least one other terminal of the group to which the terminal of interest belongs.

Abstract: A method for geolocating a terminal of a wireless communication system. The terminal receiving a message transmitted by a transmitting device of interest. An ambiguous item of identification information is obtained from the transmitting device of interest. The terminal transmitting to the access network a message including the ambiguous item of identification information from the transmitting device of interest. The access network estimating an approximate geographical position of the terminal. The transmitting device of interest is identified in a table storing a list of transmitting device identifiers and the respective geographical positions of the transmitting devices. The precise geographical position of the terminal is estimated according to the geographical position of said transmitting device of interest.

Abstract: A method for controlling, via a terminal, a standby mode of a first communication module of the terminal. The first communication module exchanges data with a first wireless access network. The terminal includes a second communication module, which exchanges data with a second wireless access network. The second communication module has a maximum data rate that is lower than a maximum data rate of the first communication module. The terminal belongs to a group of terminals sharing a set of one or several identification codes for connecting to the first wireless network. When the first communication module is in standby mode, the second communication module listens to a downlink between the second wireless access network and the terminal. The first communication module is activated and connects to the first wireless network using the indicated identification code in the activation request received from the server.

Abstract: A method of notifying of the information determined by a terminal to an access network of a wireless communication system by the terminal. Evaluation of a predetermined criterion for motion detection as a function of measurements provided by a motion sensor. Time stamping of the motion detected, when the motion detection criterion is satisfied, by storing an instant of detection of the detected motion. Determination of respective start times and end times of mobility phases of the terminal, as a function of the instants of detection. Determination of information by the terminal as a function of the respective start times and end times of the mobility phases of the terminal. Formation of a notification message including the information determined. Transmission of the notification message.

Abstract: A terminal provided with an eUICC card having an incomplete provisioning profile. At least one missing datum essential to the establishment of a communication between the terminal and an access network of a first wireless communication system is not defined by default in the provisioning profile. In order to remotely configure the eUICC card, prior communication is established between the terminal and an access network of a second wireless communication system to transmit the missing data to complete the provisioning profile.

Abstract: A method for transmitting, by a transmitter, a packet to a receiver of a communication system. The packet including data encrypted according to a symmetric key encryption protocol by determining the value of a generation information and determining an encryption key according to the value of the generation information. The data to be included in the encrypted packet to be transmitted is encrypted according to the encryption key. A truncated information is calculated based on the generation information. A verification code for the encrypted packet is calculated according to the encrypted data and the first portion of the generation information. The encrypted packet to be transmitted is formed according to the truncated information, the verification code and the encrypted data.

Abstract: A method for controlling, via a terminal, a sleep mode of a first communication module of the terminal. The first communication module is configured to exchange data with a first wireless access network. The terminal includes a second communication module, which is configured to exchange data with a second wireless access network. The second communication module has a maximum data rate that is lower than a maximum data rate of the first communication module. When the first communication module is in sleep mode, the second communication module is configured to listen to a downlink between the second wireless access network and the terminal. When the terminal receives an activation request from the server via the second communication module, the first communication module is activated.

Abstract: A method for selecting, by a sending device of a first wireless communication system, a communication mode to be used for the first wireless communication system. The communication mode being selected from among at least two different communication modes associated with different geographical zones. The method includes listening to a second wireless communication system, the second wireless communication system being different from the first wireless communication system. The second wireless communication system having at least two different communication modes associated with different geographical zones. The communication mode used by the second wireless communication system is determined. The communication mode to be used by the first wireless communication system is selected according to the communication mode used by the second wireless communication system.

Abstract: A method of selecting, by a terminal of a wireless communication system, a mode of communication to be used to exchange data with the base stations of the wireless communication system. The mode of communication being selected from among at least two different modes of communication associated with different respective geographical zones. The terminal receiving a surveillance message transmitted by an aircraft, the surveillance message includes information on the position of the aircraft. The terminal estimating the geographical zone in which the terminal is situated, as a function of the aircraft position information extracted from the received surveillance message. The mode communication is selected as a function of the estimated geographical zone of the terminal.

Abstract: A method for correcting an error in the generation of a frequency by a frequency synthesizer of a terminal of a terrestrial wireless communication system. A query message is transmitted by the terminal. Error in the generation of the frequency of the query message is estimated by an access network as a function of a theoretical transmission frequency of the query message by the terminal and an actual frequency of reception of the query message by the access network. A response message comprising an item of correction information is transmitted by the access network. A frequency of reception by the terminal of a broadcast signal transmitted by the access network is generated by the frequency synthesizer of the terminal and as a function of the item of correction information received by the access network.

Abstract: A method for associating a communicating object with at least one user. A remote server receives a signal requesting an association between an user identifier and an object identifier. The server verifies an authorization for the association between the object identifier and the user identifier, including verification of whether or not there is pre-existing association of the object identifier with at least one other user identifier. If association is authorized, the object identifier is associated with the user identifier in a database which can be accessed by the remote server. The database includes at least one user identifier list and one object identifier list.

Abstract: A method for analyzing frequency resources within a predetermined multiplexing band. For at least one base station, capabilities for detecting uplink messages respectively in different frequency sub-bands within the multiplexing band are estimated. For each frequency sub-band, a predetermined service quality criterion is assessed depending on the detection capability estimated for the frequency sub-band. A spectral map of service quality for the base station is transmitted. The spectral map is representative of the frequency sub-bands for which the service quality criterion has been verified and the frequency sub-bands for which the service quality criterion has not been verified.

Abstract: Apparatus includes an antenna to emit and/or receive radioelectric signals and a strap configured to fasten the apparatus. The antenna includes an antenna loop. The antenna loop includes a conducting plate and a case containing an electronic circuit and having at least one conducting face which extends parallel opposite the conducting plate. The conducting plate and the conducting face of the case are connected electrically together on one side of the conducting face of the case and on the other side are connected electrically with the electronic circuit. The strap includes a conductive portion forming an antenna ground of the antenna and electrically insulated from the conductive plate. The conducting portion of the strap is in capacitive coupling with the conducting plate.

Abstract: A method of transmitting, by a terminal of a wireless communication system, a message on a communication channel shared with other terminals. Before sending the message, the terminal listens on the communication channel until the terminal detects an absence of activity on the communication channel for an inactivity time ?Tin. When no activity is detected on the communication channel for the inactivity time ?Tin, the terminal waits for a waiting time ?Tat and then transmits the message on the communication channel. The waiting time ?Tat is identical for all of the terminals of the wireless communication system.

Abstract: A method for associating a terminal to a base station of an access network. When a base station receives a message from the terminal, the base station updates a local association table by storing an identifier of the terminal in the local association table. A predetermined mobility criterion of the terminal is evaluated by the access network. When the mobility criterion is verified, a neighbouring base station that has not received the message from the terminal updates the local association table of the neighbouring base station by storing the identifier of the terminal in the local association table of the neighbouring base station.

Abstract: A method for receiving a broadcast signal by an access network to a plurality of terminals of a two-way wireless communication system. An information signal is formed from the broadcast information destined for the terminals. A pilot signal is formed and a broadcast signal including the information signal SI1 and the pilot signal is transmitted. The information signal and the pilot signal are transmitted on different respective central frequencies having a predefined frequency gap.