Abstract: A method for method for managing a computer network is proposed, which comprises: performing data collection configuration for at least one network node of the computer network belonging to a set of one or more network nodes corresponding to a first depth level of a routing tree, the data collection configuration comprising: receiving respective first configuration data from at least one child node in the routing tree of the at least one network node of the computer network, wherein the at least child node corresponds to a second depth level of the routing tree which immediately follows the first depth level in a sequence of depth levels of the routing tree, and generating second configuration data based on the received first configuration data.

Abstract: The present disclosure relates to a method (50) for transmitting a data stream from a transmitting device (30) to a receiving device (40), the data stream comprising m data sub-streams, said method (50) comprising: encoding (S51) the data sub-streams with respective polar codes, such as to produce m polar-encoded data sub-streams, modulating (S52) the m polar-encoded data sub-streams onto symbols of a multilevel modulation comprising m levels defining 2m different symbols, such as to produce a symbol stream, transmitting (S53) the symbol stream to the receiving device (40), wherein the 2m symbols of the multilevel modulation are distributed in the complex plane such that they are regularly spaced along the real axis and the complex axis by a spacing factor K, the predetermined labeling function Z being such that ? (Z)<1.7m×(0.0425×m?0.

Abstract: A value of a first figure of merit representative of routing performance throughout the multi-hop network is obtained. Independently of the values of the first figure of merit, a value of a second figure of merit representative of transmission performance between the base station and the multi-hop network for each candidate configuration of transmission between the base station and the entry points of the multi-hop network is computed. Values of a third figure of merit representative of a trade-off between routing performance throughout the multi-hop network and transmission performance between the base station and the multi-hop network is then computed by combining values of the first figure of merit and of the second figure of merit. Then, the candidate configuration which shows the best value of the third figure of merit is selected to perform the transmission of data.

Abstract: Example implementations relate to a method for synchronizing a specific node connected to a plurality of other nodes. The method comprises receiving a respective synchronization quality value for a transmitting other node. The method also comprises measuring a respective propagation medium quality value with the transmitting other node. The method further comprises updating a specific synchronization reference of the specific node, whereby the updating comprises assigning to a respective contribution of the transmitting other node a respective weight of the transmitting other node, the respective weight being a function of the respective synchronization quality value of the transmitting other node and of the respective propagation medium quality value with the transmitting other node. The method also comprises revising a specific synchronization quality value and emitting to a receiving other node the revised specific synchronization quality value.

Abstract: The invention relates to a method of massive MIMO communication, comprising: —forming transmission beam set (?), by a base station (BS), with privileged channel directions; —designing additional beam set (?) for optimizing the transmission beam set, so as to detect channel direction change outside the privileged channel directions.

Abstract: A decoder performs: computing (S501) a value (i,j) of a performance-improvement metric for each kernel Ki,j; and sorting (S502) the kernels in a list in decreasing order of the values (i,j). The decoder then performs a beliefs propagation iterative process as follows: updating (S503) output beliefs for the W top kernels of the list , and propagating said output beliefs as input beliefs of the neighbour kernels of said W top kernels; updating (S504) output beliefs for each neighbour kernel of said W top kernels following update of their input beliefs, and re-computing (S505) the performance-improvement metric value (i,j) for each said neighbour kernel; setting (S505) the performance-improvement metric for said W top kernels to a null value; and re-ordering (S506) the kernels in the list . Then, the decoder repeats the beliefs propagation iterative process until a stop condition is met.

Abstract: A video-images capturing device is adapted to capture video-images of a predefined path ahead or behind a moving conveyance. The moving conveyance includes an on-board transceiver wirelessly transmitting encoded video-images toward a server. A learning phase includes: analysing encoded video-images captured during the learning phase and detecting encoding data rate peaks that exceed a predefined threshold in the encoded video-images; determining positions on the predefined path to which said detected encoding data rate peaks correspond; and storing information representing the determined positions in a database.

Abstract: The invention relates to the transmitting of a public data to at least a number K of terminals in a wireless communication system employing a MIMO (Multiple Input Multiple Output) scheme, using a set of N pre-coders (Wi). The method includes, based on the N pre-coder (Wi), determining a set of N??N optimized pre-coders (W?i) and, based on the set of N??N optimized pre-coders (W?i), computing N? optimized resource unit quantities T?(i), the N? optimized pre-coders respectively corresponding to the N? optimized resource units quantities T?(i). The method further includes transmitting N? data Di, each of the N? data being a part of the public data, such that, for i=1 to N?, Di is transmitted on T?(i) resource units which are pre-coded onto NTx antennas using the pre-coder W?i.

Abstract: Method implemented by a device for receiving synchronization data in a device-to-device communication system, said method comprising: receiving a first synchronization signal and a first information associated to a first initial synchronization source, such as the first synchronization signal is either an initial synchronization signal emitted by the first initial synchronization source or a synchronization signal emitted by another device which is synchronized based on the first initial synchronization sources; receiving a second synchronization signal and a second information associated to a second initial synchronization source, such as the second synchronization signal is either an initial synchronization signal emitted by the second initial synchronization source or a synchronization signal emitted by another device which is synchronized based on the second initial synchronization sources.

Abstract: A decoder performs: computing (S501) a value (i,j) of a performance-improvement metric for each kernel Ki,j; and sorting (S502) the kernels in a list in decreasing order of the values (i,j). The decoder then performs a beliefs propagation iterative process as follows: updating (S503) output beliefs for the W top kernels of the list , and propagating said output beliefs as input beliefs of the neighbour kernels of said W top kernels; updating (S504) output beliefs for each neighbour kernel of said W top kernels following update of their input beliefs, and re-computing (S505) the performance-improvement metric value (i,j) for each said neighbour kernel; setting (S505) the performance-improvement metric for said W top kernels to a null value; and re-ordering (S506) the kernels in the list . Then, the decoder repeats the beliefs propagation iterative process until a stop condition is met.

Abstract: Obstacle detection enhancement data are transmitted from a server to at least one moving conveyance embedding an obstacle detection system and an on-board wireless radio unit communicating with the server via wireless link. To do so, downlink transmission resources are allocated to each on-board wireless radio unit in a transmission cycle Cn, by optimizing the difference between a distance travelled by the moving conveyance during a transmission cycle and a distance covered by the obstacle detection enhancement data made available to the obstacle detection system at a next transmission cycle Cn+1, wherein the volume of obstacle detection enhancement data expected to be transmitted during the transmission cycle Cn is determined from volume-to-distance ratio information bk stored in a database and from actual quality of the wireless link.

Abstract: A wireless transmitter comprises a massive transmit antennas arrangement, a set of modulators, an analog precoder, and a codebook storing candidate predefined beam configurations corresponding to specific phase pattern configurations of the analog precoder. Transmissions of frames by the wireless transmitter are performed by using combinations of concurrent beam configurations stored in the codebook.

Abstract: A method comprises: Determining a set of all possible configurations of occupation or non-occupation of set of transmission bands, defined as a set of possible vectors satisfying at a time instant a non-overlapping condition of said radiofrequency system, said non-overlapping condition corresponding to the fact that only one interferer, among a set of possible interferers, can be active at a same time on each channel of said set of channels and forming, with contiguous channels, a transmission band, Obtaining measurements of occupation of at least a part of said set of channels, at respective tune instants, Performing probabilities calculations so as to determine, for each transmission band, an estimated activation rate, on the basis of said measurements, said estimated activation rate corresponding to an occupation rate of a transmission band by an interferer within said given observation time window.

Abstract: A method for method for managing a computer network is proposed, which comprises: performing data collection configuration for at least one network node of the computer network belonging to a set of one or more network nodes corresponding to a first depth level of a routing tree, the data collection configuration comprising: receiving respective first configuration data from at least one child node in the routing tree of the at least one network node of the computer network, wherein the at least child node corresponds to a second depth level of the routing tree which immediately follows the first depth level in a sequence of depth levels of the routing tree, and generating second configuration data based on the received first configuration data.

Abstract: A method for managing a computer network is provided, which comprises: performing data collection at at least one network node of the computer network belonging to a set of one or more network nodes corresponding to a first depth level of a routing tree that represents nodes of the computer network and edges respectively corresponding to neighboring relations between two nodes of the computer network, the data collection comprising: receiving first data collection configuration data generating second data collection configuration data for collecting data from at least one child node in the routing tree of the at least one network node of the computer network, wherein the second data collection configuration data comprises scheduling data for collecting data from each of the at least one child node, and collecting data from each of the at least one child node according to the second data collection configuration data.

Abstract: A wireless transmitter comprises a massive transmit antennas arrangement, a set of modulators, an analog precoder, and a codebook storing candidate predefined beam configurations corresponding to specific phase pattern configurations of the analog precoder. Transmissions of frames by the wireless transmitter are performed by using combinations of concurrent beam configurations stored in the codebook.

Abstract: In a wireless communication system, SINR data are obtained from power measurements data, as follows: gathering first power measurements data of total power received during communications; gathering second power measurements data of in-transmission interference power; computing third power measurements data of useful power, from the first and second power measurements data; gathering fourth power measurements data of out-transmission interference power; merging the second and fourth power measurements data so as to form a set of fifth interference power data; computing a first characteristic function from the third power measurements data, and computing a second characteristic function from the fifth power measurements data; building a third characteristic function relating to the SINR data related to the transmission channel, by performing a term-by-term product of the first and second characteristic functions; computing a probability mass function from the third characteristic function.

Abstract: A method for monitoring transmission in a wireless network comprising a radio access infrastructure and wireless devices, is provided. The method comprises: generate an estimated number of wireless devices according to a predetermined profile of number of wireless devices; generate an estimated trajectory of each of the estimated number of wireless devices according to a predetermined profile of trajectories; for each wireless device of the estimated number of wireless devices, determine an estimated distribution of the probabilities of radio transmission error during a time window using the estimated trajectory of the wireless device; and determine an estimate of a figure of merit of the wireless network based on the respective estimated distributions of the probabilities of radio transmission error during the time window for the wireless devices.

Abstract: The invention relates to the transmitting of a public data to at least a number K of terminals in a wireless communication system employing a MIMO (Multiple Input Multiple Output) scheme, using a set of N pre-coder (Wi), said method comprising: /a/ Based on the N pre-coder (Wi), determining a set of N??N optimized pre-coder (W?i) and based on the set of N??N optimized pre-coder (W?i), computing N? optimized resource units quantities T?(i), the N? optimized pre-coder (W?i) respectively corresponding to the N? optimized resource units quantities T?(i); /b/ Transmitting N? data Di, each of the N? data being a part of the public data, such as, for i=1 to N?, Di is transmitted on T?(i) resource units which are pre-coded onto NTx antennas using the pre-coder W?i.

Abstract: A method comprises: Determining a set of all possible configurations of occupation or non-occupation of set of transmission bands, defined as a set of possible vectors satisfying at a time instant a non-overlapping condition of said radiofrequency system, said non-overlapping condition corresponding to the fact that only one interferer, among a set of possible interferers, can be active at a same time on each channel of said set of channels and forming, with contiguous channels, a transmission band, Obtaining measurements of occupation of at least a part of said set of channels, at respective tune instants, Performing probabilities calculations so as to determine, for each transmission band, an estimated activation rate, on the basis of said measurements, said estimated activation rate corresponding to an occupation rate of a transmission band by an interferer within said given observation time window.