Alcatel Lucent

Alcatel

Michel-Guy Francon

Nicolas Chuberre

Christophe Nussli

Olivier Courseille

Brigitte Romann

Thibault Gallet

Dominique Deprey

Paul Vincent

Steven Bouchired

Christian Combe

The invention concerns a radio communication terminal, comprising first means for transmitting/receiving RF signals to communicate in a cellular radio communication network, said first means being in standby mode when no communication is set up in the cellular network with another terminal or with the network itself. The invention is characterized in that the terminal comprises second means for receiving at least one carrier dedicated to collective data of multimedia contents, said second means being activated only when the first means are n standby mode. The invention also concerns a method for broadcasting and receiving collective data, as well as a system for broadcasting multimedia contents.

Radio communication terminal broadcasting et reception method and broadcasting system

System and method for use in a hybrid multispot satellite broadcasting system comprising at least one satellite (S; S; S) for multibeam broadcasting of beams in respective frequency bandwidths (F; F; F), the system further comprising a plurality of terrestrial repeater (R; R; R) for receiving, processing and re-transmitting said beams in a frequency bandwidth which is different from that of the bandwidth of the beam received. Each terrestrial repeater (R; R; R) re-uses for terrestrial re-transmission a combination of bandwidths corresponding to different beams broadcast from said satellite to different beams.

System and method for efficient frequency use in a hybrid multi-spot satellite broadcasting system

This invention concerns a terrestrial repeater (RF) dedicated to a hybrid communication network comprising a satellite for transmitting to terminals (and at least to the repeater) signals (SPI) in the form of a first modulated carrier with data to be transmitted, encoded by suing initial sequences of at least two pseudo-random codes, and spectrally spread with spreading codes each associated with a sequence. The repeater comprises: i) first processing means (MRP, MTB) for dispreading and demodulating the received signals so as to retrieve the encoded data which they represent for decoding them, and ii) second processing means (MTPi, APi) for re-encoding the retrieved data with one first part of the codes of the corresponding sequence to constitute first encoded data, and with at least a second part of the codes of the corresponding sequence, at least complementary to the first part, to constitute at least second encoded data, and to generate to the terminals, first signals (SP&#x2033;), in the form of the first modulated carrier with the first encoded data and spectrally spread, at lest second signals (SP) in the form of at least and second modulated carrier with the second encoded data and spectrally spread.

Terrestrial repeater with redistribution of pseudo-random codes on different carrier frequencies

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Toulouse, France

Michel-Guy Francon