Thomson Licensing

Thomson Licensing S.a.

Thomas Licensing

Charline Guguen

Patrick Fontaine

Ludovic Jeanne

Dominique Lo Hine Tong

Samuel Guillouard

Gérard Haquet

Corinne Nicolas

Renaud Dore

Jean-Luc Robert

Jean-Yves Le Naour

Philippe Chambelin

François Baron

Walid Karoui

Laurent Vrignon

G&eacute;rard Haquet

The invention relates to a device for transmission in a wireless network comprising a plurality of base stations and at least one mobile terminal, a mobile terminal (MT) transmitting a same signal () intended for the plurality of base stations (BS, BS, BS). In order to optimize the synchronization of the mobile terminal with the plurality of base stations, the method comprises a step of transmission of an item of information representative of a first temporal offset intended for the mobile terminal, the first offset being according to at least one reception time () of the first signal by at least one base station (BS, BS, BS). The invention also relates to the corresponding device for reception.

Method for reception in a wireless network and corresponding device for reception

The present invention concerns a method and a device for transmitting data between a sender, and at least two receivers, in a network where a data between a sender and a receiver is carried on a connection and where a unicast connection enables a sender to send the data and a receiver to acknowledge a reception of the data. The method comprises the steps of opening a unique unicast connection identified with a connection identifier; and indicating the connection identifier to the sender and the receivers, so that the sender sends the data on the unicast connection, and the receivers receive the data on the unicast connection.

Method and device for transmitting data to several receivers using ARQ

The invention relates to a method for transmission in a wireless network comprising a plurality of base stations and at least one mobile terminal, a mobile terminal (MT) transmitting a same signal () intended for the plurality of base stations (BS,BSBS). In order to optimise the synchronisation of the mobile terminal with the plurality of base stations, the method comprises a step of transmission of an item of information representative of a first temporal offset intended for the mobile terminal, the first offset being according to at least one reception time () of the first signal by at least one base station (BS,BS,BS).

Transmission method in a wireless network and corresponding reception method

Method for transmission of data packets by a first station, the packets being intended for a destination node belonging to a network comprising a second station, said packets being transmitted by said first station to said destination node via said second station. In order to simplify the transmission, the method comprises:

Method of transmitting data packets

In order in particular to allow a synchronization on data packets, the method comprises: The invention also relates to a corresponding synchronization module and an apparatus implementing this module.

Method and device for synchronizing reception of data packets

The invention relates to a method for transmission of data in a wireless network comprising a plurality of base stations broadcasting data at a same frequency and a plurality of mobile terminals. In order to overcome inter-cell transfer at the level of mobile terminals, the method comprises: The invention also relates to the corresponding method for reception of data.

Method for transmission of data and method for corresponding reception

In order to simplify the management of packets to be transmitted, we implement:

Method and device for transmitting data packets

The assembly of data blocks to form at least one data packet includes: writing in a first register of at least one first data block descriptor, which includes information representing a status of each block belonging to a set of blocks, whereby the status of each block indicates whether the block has been stored; the determination and recording in a second register of a status of the blocks, which represents the state of storage of the blocks, whereby this operation, based on the use of a second register, enables simple and fast acquisition of the status of a packet which can be assembled on the basis of the blocks; and the assembly of a packet containing the blocks according to the status recorded in the second register.

Method and device for data packet assembly

The invention proposes an H-plane filter with inductive irises which exhibits a quasi-elliptic response while retaining the same compactness as a filter having a Chebyshev response. The invention furthermore makes it possible to use a large number of transmission zeros. For this purpose, there is proposed a waveguide filter comprising at least one cavity delimited by at least two inductive irises. The filter furthermore comprises at least one floating insertplaced in one of the inductive irises. The invention is also a process for manufacturing the waveguide filter incorporating at least one insert.

Bandpass filter with pseudo-elliptic response

The present invention relates to a process for securing to a metal support at least one microwave electronic module made on a substrate one of whose faces forms an earth plane. The process consists in depositing between the face forming the earth plane and the metal support, at least one strip of conducting adhesive at the level of the zones of breakage of the earth plane. The invention applies to the microwave field.

Process for securing a microwave module to a support

The present invention relates to a FINLINE type microwave band-pass filter comprising a waveguide provided with an insulating substrate placed in an E plane of the guide and comprising on at least one of the surfaces, conductive inserts electrically connected to the internal surfaces of the guide which support the substrate and which determine by their dimensions and their positioning on the substrate a Chebyshev type filter response curve. The filter includes at least one cavity in perpendicular short circuit to the substrate, the positioning and the dimensions of the cavity determining a transmission zero on the filter response curve for attenuating the frequencies situated around this zero. Such a filter is used in particular in transmission terminals operating in the Ka band.

Finline type microwave band-pass filter

The invention relates to RF bandpass filters with pseudo-elliptic response. In a filter comprising a dielectric substrate placed in E position in a rectangular waveguide and comprising inserts on one of the surfaces of the substrate are placed conductors linked electrically to the walls of the guide, and on the other surface of the substrate opposite these conducting inserts are placed electrically floating inserts that make it possible to determine zeros in the transmission curve of the filter. This yields a filter exhibiting a response curve of pseudo-elliptic type which improves the rejection of spurious frequencies without increasing the dimensions of the filter.

Waveguide E-plane RF bandpass filter with pseudo-elliptic response

The invention proposes a transmitting/receiving device comprising at least one transition zone which comprises a means of transforming a polarized wave of a first polarization into an electrical signal; a second means of transforming an electrical signal into a polarized wave of the second polarization; and a first filtering zone placed between the antenna and the transition zone, the first filtering zone comprising a waveguide filter polarized in the second polarization direction, the said filter being transparent in the first polarization direction.

Device for separating transmission and reception signals of different polarizations

The present invention relates to a device for filtering electromagnetic waves, consisting of a turret element comprising at least one pair of waveguide filters, each filter operating in a specific frequency band; the turret element being housed between a source antenna and an electromagnetic wave transmitter/receiver module.

Device for filtering electromagnetic waves

Waveguide filters for filters operating at millimeter wavelengths which require high accuracy. The filter includes a plurality of discs held in the cylinder of a support. Each disc has a recess defining cavity size. The various parts forming the filter are simplified thereby making it possible to reduce production costs while providing good accuracy.

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Rennes, France

Charline Guguen