Abstract: A method of processing radio-frequency signals received on R antennas, and corresponding reception method, decoding method, computer program and system.

Abstract: A method for processing radio-frequency signals received on R antennas, where R?2, includes, implemented by a radio unit: obtaining a frequency representation of the radio-frequency signal received on an antenna, demapping the frequency representations, first estimation of the transmission channel of the radio-frequency signals and of a noise-plus-interference covariance, projecting a vector of R complex samples onto a vector of L complex samples, referred to as projected samples, transmitting the vector of L projected samples to a base band processing unit, as well as the following, implemented by the base band processing unit: receiving the vector of L projected samples transmitted by the radio unit, demapping the L projected samples, second estimation of the transmission channel of the radio-frequency signals, after projection, equalising the L projected samples, taking account of the second channel estimation, processing the equalised symbols.

Abstract: A transmission method for an OMAMRC telecommunication system with M sources (s1, i . . . , sM), optionally L relays and a destination, where M?2, L?0. In the method, when a source has not been able to be decoded by the destination, the destination determines an active set of nodes from among all the nodes of the system that have decoded the source, and then organizes a simultaneous retransmission, via the active set, of a message transmitted by the destination.

Abstract: A transmission method intended for an OMAMRC telecommunication system with M sources (s1, . . . , sM), possibly L relays and one destination, M?2, L?0. In such a solution, when a source could not be decoded by the destination, the latter organises a retransmission by taking into account the characteristics of a MIMO transmission channel established between, on the one hand, at least two nodes that decoded the source and, on the other hand, at least two antennas in reception of the destination in the form of a precoding coefficient. Thus, the method therefore makes it possible to improve the decoding performance of a source si, in a context where the destination is equipped with a plurality of antennas in reception.

Abstract: A method for managing a communication set up according to a first communication mode between terminals in a telecommunications system. The method includes: obtaining, by a first terminal participating in the communication, a request to change communication mode so as to transition from the first communication mode to a second communication mode; switching the communication from the first communication mode to the second communication mode; wherein the first communication mode and the second communication mode are different communication modes in a set comprising a two-way voice communication mode, a one-way voice communication mode, and a text-based communication mode.

Abstract: A method for communication between an emitter and a receiver, corresponding emitter, receiver and computer program. The development relates to a communication method implemented in a transmission system comprising an emitter and a receiver, the receiver implementing: estimating a covariance matrix of the interference, representative of the spatial structure of the reception interference. According to the development, the receiver further implements: selecting a technique for acquiring knowledge of the emission channel, in a group of techniques comprising a first technique based on a compressed version of the covariance matrix of the interference and at least one second technique, and transmitting to the emitter at least one piece of information relating to the technique for acquiring knowledge of the emission channel selected by the receiver.

Abstract: A communication method is implemented in a transmission system comprising an emitter and a set of receivers. The method comprises, for at least one time-frequency resource, receiving, from each of the receivers, at least one piece of information relating to a technique for acquiring knowledge of the transmit channel. At least one of said receivers is configured to return to said emitter information relating to a first technique for acquiring knowledge of the transmit channel. At least one of said receivers is configured to return to said emitter information relating to a second technique for acquiring knowledge of the transmit channel. The method further comprises the selection, from said information received from the receivers, of a subset of receivers, included in the set of receivers, to which the emitter is configured to emit data on said at least one time-frequency resource.

Abstract: A transmission method for an OMAMRC telecommunication system with M sources (S1, . . . , SM), optionally L relays and a destination, M?2, L?0. In such a solution, when a source was unable to be decoded by the destination, the latter organises a simultaneous retransmission, by the set of nodes in the system that decoded the source, of a message transmitted by the latter.

Abstract: A method for processing radio-frequency signals received on R antennas, where R?2, includes, implemented by a radio unit: obtaining a frequency representation of the radio-frequency signal received on an antenna, demapping the frequency representations, first estimation of the transmission channel of the radio-frequency signals and of a noise-plus-interference covariance, projecting a vector of R complex samples onto a vector of L complex samples, referred to as projected samples, transmitting the vector of L projected samples to a base band processing unit, as well as the following, implemented by the base band processing unit: receiving the vector of L projected samples transmitted by the radio unit, demapping the L projected samples, second estimation of the transmission channel of the radio-frequency signals, after projection, equalising the L projected samples, taking account of the second channel estimation, processing the equalised symbols.

Abstract: A method of processing radio-frequency signals received on R antennas, and corresponding reception method, decoding method, computer program and system.

Abstract: A reception method implemented by a reception device implementing a plurality of receive antennas. The method includes: estimating an interference covariance matrix representative of the spatial structure of the interference between the receive antennas; and transmitting at least one item of information about a quality of service associated with at least one acquisition technique for acquiring knowledge of the channel at transmission, able to be used by a transmission device implementing a plurality of transmit antennas, obtained from the interference covariance matrix.

Abstract: A method for transmitting signalling information from a base station to at least two terminals associated with the base station. The method includes transmitting at least two physical unicast control channels each intended for one of the at least two terminals, each physical unicast control channel carrying a unicast control message carrying transmission parameters intended to be used for the transmission of a multicast control message, and each physical unicast control channel being encoded with a temporary network identifier uniquely identifying the terminal for which it is intended, the multicast control message carrying at least two sets of transmission parameters for use in transmitting pay load data to the at least two terminals respectively.

Abstract: A method and user equipment to select an emission power from a set of possible emission powers depending on their location relative to a base station. In a 5G development scenario, a massive number of user equipment will be deployed. The data exchanged by this user equipment is mainly signalling data whose volume generates an overload of the network resources. A resource access scheme called uncoordinated resource access scheme reduces the volume of the exchanged data. So that the base station can decode all signals emitted by the user equipment, it is necessary to have a number of emission power levels greater than the number of user equipment. By proposing the user equipment to select an emission power from a set of possible emission powers depending on their location relative to the base station, the solution allows the base station to decode the signals emitted by a greater number of user equipment.

Abstract: A method of transmitting, by a first device, pilot symbols to allow a second device to estimate a transmission channel between the first and second devices. The first device has a first antenna that is active in transmission and a second antenna that is passive in transmission. The method includes: transmitting, by the first active antenna, a signal conveying pilot symbols associated with the first active antenna, and during which the second passive antenna is set to a transparency impedance to obtain a level of signal backscattered by the second passive antenna less than a first threshold; and transmitting by the first active antenna a signal conveying pilot symbols associated with the second passive antenna, and during which the second passive antenna is set to a scattering impedance to obtain a level of signal backscattered by the second passive antenna greater than a second threshold greater than the first threshold.

Abstract: A communication method implemented by a base station having at least one cell and forming part of a mobile access network including neighbouring cells of the cell. The method includes broadcasting blocks referred to as SSB blocks at a first periodicity value for synchronising a terminal and for allowing said terminal to receive SIBs of which at least one of said SIBs includes an identifier of at least one neighbouring cell, a second periodicity value of SSB blocks broadcast by said neighbouring cell and a frequency position of an SSB block of said neighbouring cell.

Abstract: A method for managing a transmission of sequences of symbols of predetermined duration by means of a terminal having dual connectivity with a first device for accessing a network and with a second device for accessing a network is described, the terminal being configured to transmit, when dual-connected, sequences of symbols over a first uplink to the first access device and over a second uplink to the second access device during disjoint time intervals.

Abstract: A telecommunication method with feedback, from a terminal to an access point, of a minimum processing time required for the terminal to perform N iterations of iterative decoding with interference cancellation on at least one data packet transmitted by the access point and carried by a single physical channel.

Abstract: A message method intended for an OMAMRC telecommunication system with M sources si i?{1, . . . , M], potentially L relays (r1 . . . , rL) and a destination. The transmission is of FDM type in a band divided into B mutually orthogonal sub-bands. The method includes: a simultaneous transmission of the M sources in a time interval with allocation of at least one sub-band per source and at least one cooperative retransmission for a time interval of at least one relay node taken from among the M sources and the L relays which is selected using a selection strategy with allocation of at least one sub-band per node selected.

Abstract: A reception method implemented by a reception device implementing a plurality of receive antennas. The method includes: estimating an interference covariance matrix representative of the spatial structure of the interference between the receive antennas; and transmitting at least one item of information about a quality of service associated with at least one acquisition technique for acquiring knowledge of the channel at transmission, able to be used by a transmission device implementing a plurality of transmit antennas, obtained from the interference covariance matrix.

Abstract: A method for managing a communication set up according to a first communication mode between terminals in a telecommunications system. The method includes: obtaining, by a first terminal participating in the communication, a request to change communication mode so as to transition from the first communication mode to a second communication mode; switching the communication from the first communication mode to the second communication mode; wherein the first communication mode and the second communication mode are different communication modes in a set comprising a two-way voice communication mode, a one-way voice communication mode, and a text-based communication mode.