Alcatel

Alcatel N.v.

Bruno P Suard

Vinod Kumar

Dany Jenneve

Terminals having analog/digital telephone functions as well as data exchange functions are used by users who are of lower skill level than the average user of a personal computer. Therefore, the userfriendliness of a system comprising such a terminal should be as high as possible, which can be realized by providing the system with coupling means for coupling a server-memory of a server provider and a network-memory of a telephone network for storing information with respect to messages stored in one of said memories into the other memory. Then the user only has to contact either the server or the network to find out if there are any messages for him. Such a system is very userfriendly.

Unified system for exchanging data between a terminal and access means

Several emitter stations (MS1-MS4) are allowed to transmit call set-up packets in random access channels and user information packets in traffic channels to a receiver station (BST) which is provided with an array of N sensors (A.sub.l -A.sub.N) and with a receiver (RM) adapted to simultaneously acquire N-1 packets from the emitting stations and to derive therefrom N-1 distinct array output signals (X.sub.1 -X.sub.N-1). During a random access channel (RACH) channel, the identity of the emitting station (MS) as well as the direction of arrival (.theta.) and the power (.sigma.) of its signal are stored in a parameter data base (PDB) together with its weigh vector (W) calculated (WVG) therewith and a traffic channel (TCH) channel allocated (CHC) thereto. During either a RACH or a TCH channel, the weight vectors of a emitting station are provided by the data base and are applied to multipliers (M.sub.1 -M.sub.N-1) which produce the N-1 array output signals. In case of interference between emitting stations using a same TCH channel, another TCH channel is allocated to one of the interfering stations and the weight vectors are updated. The stations also send tracking packets in the RACH channel to update their parameters and accordingly the weight vectors in the data base. The present radio telecommunication system is particularly suitable, e.g., for the pan-European 'Global System for Mobile communications' GSM wherein the emitter stations are mobile stations and for similar systems elsewhere.

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Neuilly, France

Bruno P Suard