Abstract: A full duplex microwave front end (300, 400, 500, 600, 800) for the communication system of an unmanned aerial vehicle such as a drone, comprising: —a transmitter module (310, 410, 510, 610, 710, 810) capable of selecting an antenna (311, 312, 411, 412, 511, 512, 611, 612, 711, 712), the most appropriate one at a given time, in order to emit and/or receive a signal, —a filter module (320, 420, 520, 620, 720, 820), capable of insulating the emission function from the reception function in order to emit the signal or insulating the reception function from the emission function in order to receive the signal, and —an amplifier module (340, 440, 540, 640, 740, 840), capable of amplifying the weak signal received in order to demodulate it, or capable of amplifying the power of the modulated signal intended to be emitted, characterized in that it comprises, —a switch module (330, 430, 530, 630, 730, 830) capable of switching the frequency bands B1 and B2 used for emitting and receiving the said signal respectively.

Abstract: A method for managing the mobility of a mobile node in telecommunications networks, which include first and second telecommunications networks, the mobile node including a memory area that stores data concerning the mobility of the mobile node in the networks, a first module for managing the mobility of the mobile node, to establish, through the first network, from an item of mobility data, a mobility session with a home agent, and, a second module for managing the mobility of the mobile node, to establish, through the second network, from an item of mobility data, a mobility session with the home agent, the method including accessing by the first module the mobility data stored in the memory area, and obtaining, by the second module, from the first module, at least one item of mobility data from the set of data that is accessible by the first module.

Abstract: A method for reducing the crest factor of a wideband signal including N narrowband signals, N being a natural integer greater than or equal to two, the method, implemented by an emitting equipment, including phase shifting the narrowband signals between them in such a way as to reduce the crest factor.

Abstract: A communication method of a first device over a first radio communication link of a first communication network and a second device over a second radio communication link of a second communication network, includes a step of suspending, during a suspension time interval, transmission of a first signal by the first device over the first radio communication link; and a step of receiving, with the second device, a second signal over the second radio communication link during the suspension time interval.

Abstract: The present invention relates to a method for enabling radioelectric coexistence between two devices based on personal mobile radio or PMR technology, of which one is a narrow band device and the other is a broadband device, and each device interacts via a radioelectric link with respective base stations connected to a control unit for the radio resource of their respective networks, characterized in that it comprises the following steps: detection of the presence of a narrow band radioelectric emitter device in the vicinity of device, transmission of a message on the broadband network, addressed to the control unit, which message signals the presence of a possible narrow band emitter close to said device, and assignment by the control unit of new frequency blocks for uplinks, only in predefined allocated periods.

Abstract: A method for demodulating a signal in a receiver including at least two antennas, each receiving a signal, the received signals corresponding to a single emitted signal including symbol frames in which certain symbols, referred to as driver symbols, are known to the receiver, the method including: noise whitening in order to form two combined signals, the noise components of which are separate; normalizing the noise components of the combined signals in order to form two signals, the noise components of which are separate and have equal average standards; and performing signal demodulation with the maximum combination of the signal-to-noise ratio on the two signals, the noise components of which are separate and which have equal average standards, wherein during the first noise-whitening step for forming the two combined signals, the latter are determined retroactively using the maximum criterion.

Abstract: Target land area is three-dimensionally located using an optical sensor and a radar sensor in satellites. The positions of the satellites are measured and images are captured when the sensors point toward land areas. The aiming direction of the optical sensor for each area is measured. The distance between each area and the radar sensor pointing thereto is measured. Images of land areas captured by the sensors and covering common areas are matched. The distance between the target area selected from the common areas and the optical sensor is accurately determined on the basis of the positions of the sensors, the distance between the target area and the radar sensor, and the aiming direction of the optical sensor, which are associated with the images covering the target area.

Abstract: The invention relates to a data packet communication method for a telecommunications network implemented by a relay node of said telecommunications network between a base station and at least one piece of user equipment and remarkable in that it comprises a step (E1) of receiving a plurality of data packets, a step (E2) of selecting, according to at least one selection criterion, at least one data packet out of the data packets received, a step (E3) of application processing the selected data packet and a step (E4) of emitting processed data packets to the user equipment.

Abstract: In order to acquire first subbands in at least a central band of a broad frequency band, in which subbands frames are transmitted by a base station (BSBB) of a broadband network (RBB) which is co-located with a network (RNB) having narrow subbands comprised in the broadband, a mobile (MBBB) which does not know the distribution of the subbands correlates subsequences of a generated reference signal with subsequences which are respectively detected in the subbands and compares correlation coefficients against a threshold. By knowing the distribution of the first subbands, the mobile is able to process the signaling transmitted by the base station, in order to access allocated resources, after a synchronization phase.

Abstract: For associating different technologies of a microstrip line and of a rectangular waveguide, for example on a ceramic, in a transition device including a mode transformer between the line integrated into a printed circuit board, and the waveguide, the board includes a housing containing the waveguide with a large sidewall coplanar and coaxial to the strip of the line and another large sidewall fixed onto a metallic layer of the board at the bottom of the housing. A linking metallic element bridges a mechanical tolerance gap between the transformer and one of the line and the waveguide. The transformer can be integrated into the board, or into the waveguide in a microwave component.

Abstract: A method capable of providing a control unit with a previously unknown capability of reasoning on this knowledge. A non-exhaustive list of particularly interesting technical applications can be derived from such a method particularly in the military and civilian fields, for example such as the identification of entities by a humanoid robot, or identification of entities for peacekeeping or first aid missions, or detection of potential obstacles during displacement of an automobile vehicle, or identification of unknown ships, or identification of potential targets for drones, aircraft, land vehicles such as extraterrestrial vehicles or warships.

Abstract: For supervising the security of a computer system (SY) comprising several elementary computer items (BI), such as machines and applications, and several gathering items (BIg), such as networks, services or sites, gathering elementary items, a supervision device (DS) collects base measurements (MB) representative of states of the elementary items. A unit (UDI) determines several security indicators (I) of different types for each elementary item according to respective functions of the base measurements and several security indicators of different types for each gathering item. Each security indicator of a given type of a gathering item is determined according to a respective function of the security indicators of the given type of the elementary items gathered in the gathering item. The indicators of one item relate to the availability, the intrusion, the vulnerability and the compliance to a security policy.

Abstract: In order for professional mobile terminals for a critical mission of public security to make use of the radio infrastructure of a broadband network, for instance of the LTE type, the downward and upward frames are configured in a base station each in a first area dedicated to mobile terminals of lower priority and a second area dedicated to mobile terminals of critical mission of high priority. In the second area, sub-channels dedicated to a group of terminals of critical mission are allotted by order of priority to this group, to another group of mobile terminals of critical mission and to mobile terminals of lower priority.