Mitsubishi Electric R&D Centre Europe

The disclosure relates to a method performed by a vertical federated learning, VFL server (10, 10a), the method comprising: obtaining (31, 31a, 31b) client information for a plurality of VFL clients (11, 12, 13, 14, 11a, 12a, 13a, 14a), the client information for a VFL client including data indicative of a reliability and/or a resource availability of the VFL client; transmitting (34, 34a, 34b) allocation instructions, the allocation instructions defining associations of local models to respective VFL clients, wherein the allocation instructions take account of the client information; obtaining (35, 35a, 35b) an update to the client information for a VFL client during a use of a local model by the VFL client in a training task (22) or an inference task (23); transmitting (36, 36a, 36b) at least one updated allocation instruction, an updated allocation instruction defining a reassociation of a local model to a respective VFL client, and wherein the at least one updated allocation instruction takes account of the update to the client information; and transmitting (33, 33a, 33b) model information for at least one of the local models, the model information comprising one or more of a model importance, a model size, and a model complexity, wherein the allocation instructions and/or the at least one updated allocation instruction take account of the model information.

The invention relates to a method, implemented by computer means of a telecommunication device , for inserting reference signals, said telecommunication device comprising a modulator, said method comprising: obtaining a sequence of signal samples, by inserting reference signals according to at least one reference signal pattern within a sequence of data samples ; feeding said modulator with signal blocks obtained from said sequence of signal samples wherein: the positions, in said sequence of signal samples, of the reference signals inserted according to each of said at least one reference signal pattern are a proper subset of a finite arithmetic progression ; said proper subset comprises at least three terms of the finite arithmetic progression, said at least three terms comprising the initial term of the finite arithmetic progression, and the final term of the finite arithmetic progression.

A ray-based detection system for detecting a wave blocking content within an environment (E) in based on ray-tracing. The system suits for detecting presence of an object or a human in the environment, in particular for safety of security applications. Two alternative implementations are provided for inferring the presence of the object or human from sensed waves. The system also allows distinguishing between several postures of the detected human. The waves implemented by the ray-based detection system may be radio waves, acoustic waves or laser-emitted waves.

An equalization optimizer (300) analyzes successive samples of at least one channel-related parameter (Pc) so as to determine contribution values of one or more time-reference classes representative of timescales of impact of channel impairments on response of an optical channel. The equalization optimizer (300) obtains environmental conditions data (Ed) representing environmental conditions at which equalization-related operations have to be performed. The equalization optimizer (300) performs channel inference so as to determine a contribution value for one or more remaining time-reference classes among said time-reference classes by relying on information learnt (Ld) from another channel in similar environmental conditions. The equalization optimizer (300) determines a value of at least one equalization-related parameter (Pe) according to the contribution values of the time-reference classes, and configures the equalization-related operations in accordance.

A method (60a) for determining assistance information for transmitting an upcoming data packet (j) via a route in a delay tolerant network including at least one contact (C₁-C₄) linking two routing entities (A-E),the method (60a) comprising:(S60) obtaining data related to the contact (C₁-C₄),(S611, S621) obtaining data related to the transmission of a data packet (i, j) among the upcoming data packet (j) and an ongoing data packet (i),based on at least said data related to the transmission of the data packet, (S612, S624) splitting the contact, said splitting resulting in at least first and second split contact (C_3a, C_3a*, C_3b, C_3b*) linking said two routing entities (A-E),(S614, S626) determining the assistance information, including at least data related to the first split contact and the second split contact (C_3a, C_3a*, C_3b, C_3b*).

An equalization optimizer analyzes (S401) successive samples of at least one channel-related parameter Pc so as to determine contribution values of time-reference classes representative of timescales of impact of channel impairments on response of an optical channel. The equalization optimizer determines (S402) a value of at least one equalization-related parameter Pe according to the contribution values of the predetermined time-reference classes and configures (S403) equalization-related operations in accordance. The equalization optimizer reviews (S404) the contribution value of each time-reference class at a rate of the timescale corresponding to the time-reference class in question, and updates (S406) accordingly the at least one equalization-related parameter Pe so that a part thereof which depends on the time-reference class in question is only updated, and the equalization optimizer reconfigures (S407) the equalization-related operations in accordance.

The invention relates to a container for storing thermal energy, a method for producing a container for storing thermal energy, a thermal energy storage device and a system are provided. The container for storing thermal energy, comprises or consists of at least one wall defining an internal space of the container, a phase change material located in the internal space of the container and a gas located in the internal space of the container, characterized in that the gas in the internal space of the container has a higher thermal conductivity than air and the internal space of the container is sealed from an external space of the container in a gas-tight manner. The container for storing thermal energy according to the invention has an improved heat transfer property and a higher long-term stability.

A thermal energy storage device is provided which comprises a first container and a second container, each having at least an obverse wall, a reverse wall, first side wall connecting the obverse wall and reverse wall, and an internal space, wherein the obverse wall and/or reverse wall has a substantially planar surface, wherein the internal space of the first container and/or the internal space of the second container contains a phase change material and wherein the first and second container are stacked to define a flow path for a fluid in an internal space of the thermal energy storage device, characterized in that the flow path allows a fluid to flow in a serpentine manner from an inflow port of the thermal energy storage device over the complete obverse wall and/or reverse wall of the first container, over the first side wall of the first container, over the complete obverse wall of the second container, over the first side wall of the second container and then over the complete reverse wall of the second container. Moreover, a system is provided.

A method, implemented by a sender node of a radiofrequency wireless communication system, said method comprising: sending to one or more receiver node, or receiving from said one or more receiver node, a signaling indicating an initialization of a procedure to insert in a plurality of data packets reference signals according to a plurality of reference signal patterns having respectively a plurality of distinct values of at least one parameter; inserting reference signals according to a first reference signal pattern in a first set of data packets ; sending, through a shared channel of said radiofrequency wireless communication system, said first set of data packets to said one or more receiver node of said radiofrequency wireless communication system ; inserting reference signals according to a second reference signal pattern in a second set of data packets, values of said at least one parameter being different between the first reference signal pattern and the second reference signal pattern ; sending, through said shared channel, said second set of data packets to said one or more receiver node.

A process for monitoring a degradation state of an electrical interconnection (15) in a power module assembly (100), comprises capturing a detection signal that is sensitive to a reverse recovery current originating from a diode (14) of the power module assembly. The reverse recovery current is triggered by a turning-on switching operation of a switch (11) in a tested half-bridge branch (1) that comprises said diode, switch and interconnection. The invention process may be combined optionally with another monitoring process based on a turning-off switching operation of the switch, for monitoring a degradation state of another electrical interconnection within the same half-bridge branch. Complete interconnection monitoring for said half-bridge branch is thus possible.