Orange

France Telecom

Thierry Clessienne

Raphaël Visoz

Ali Osmane

Sylvain Bratschi

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.

Transmission and reception methods and devices implementing a plurality of transmit and receive antennas, and corresponding computer program

A method of sending a data signal having a series of symbols to a receiver includes generating multiple OFDM signals, which are transmitted by multiple transmitter entities. A succession of pairs of symbols is also generated. The method may also include generating at least one pair of symbols orthogonal to a current pair of symbols of the succession of pairs of symbols, generating at least one duplicated pair of symbols by duplicating the current pair of symbols, and allocating at least one current pair of symbols, at least one orthogonal pair of symbols, and at least one duplicated pair of symbols to the transmitter entities of the plurality of transmitter entities. Generating at least one orthogonal pair, generating a duplicated pair, and the allocating step may be repeated for all the pairs of symbols of the series of symbols.

Method of sending a data signal via a plurality of transmitter entities

A method and to a device for selecting paths of a multipath channel. The method selects a path if an estimate of the relative contribution of the current path to the output signal-to-noise ratio of the receiver exceeds a given threshold.

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Issy les Moulineaux, France

Thierry Clessienne