Alcatel N.v.

Alcatel Cit

Alcatel Alsthom Compagnie Generale D'electricite

Alcatel Mobile Communication France

Alcatel Radiotelephone

Fabrice De Seze

Frederic Gourgue

Vinod Kumar

Christophe Mourot

Marc Delprat

Method of handing over a call set up with a mobile station from one cell

Packet access method in a cellular digital radio-communications system

Air interface adapting method for a mobile radio system

A source sequence including N data elements is interleaved to deliver an interleaved sequence according to a method which includes at least one interleaving step associating a data element of index j in the interleaved sequence with a data element of index i in the source sequence, where:

Method and device for interleaving a sequence of data elements

In a method of determining, in a cellular mobile radio system with more than one type of cell, which type of cell a mobile station is accessing, the management network of the system sends to the mobile station a signalling message (recognition message) in the form of a sinusoid whose frequency (recognition frequency) differs from a reference frequency known to or determinable by the mobile station. The difference, optionally a null difference, between the reference frequency and the recognition frequency is characteristic of the cell type. The mobile station determines the recognition frequency. The mobile station then determines the difference between the reference frequency and the recognition frequency. The mobile station then determines the cell type from this difference.

Method enabling a mobile station of a cellular mobile radio system with

Growing community of inventors

Paris, France

Fabrice De Seze