Telecom Italia S.p.a.

Telecom Italia Lab S.p.a.

Roberto Quasso

Mauro Renato Boldi

Giacolino Nervo

Nicola Da Dalt

Paolo Gianola

Alberto Rossaro

Sara Gabba

Roberto Bonello

Paolo Mosca

Communications method between a main station and processing nodes includes interconnecting the main station and the nodes in an optical path defining adjacent nodes and non-adjacent nodes, operatively grouping the nodes in a plurality of distinct sub-groups, each formed by non-adjacent nodes, at least one of said sub-groups including at least two nodes generating at the main station a multiplexed optical signal propagating along the path for serving the nodes, the multiplexed optical signal including a plurality of optical channel signals having a respective plurality of distinct carrier wavelengths, each carrier wavelength being associated with a respective sub-group of nodes, and serving each node of each sub-group of nodes with a respective portion of the optical channel signal having the associated carrier wavelength.

Communications method, particularly for a mobile radio network

A radio base station for a mobile radio network, includes a set of remote units connected with the radio base station, preferably via a radio over fibre arrangement. Each remote unit provides radio cell coverage by means of a set of communication channels, and is equipped with a respective set of antenna elements. The communication channels are distributed over the antenna elements according to an assignment scheme that is dynamically variable.

Radio-access method, related radio base station, mobile-radio network and computer-program product using an assignment scheme for antennas' sectors

A memory for data accumulation includes an input on which such data are entered as a stream of input data under the control of an input timing signal and an output starting from which the data entered in memory are read as a stream of output data under the control of a reconstructed timing signal. A phase-locked loop uses this input timing signal as an input signal to generate a corresponding phase-locked output signal. Of such phase-locked loop output. A device is provided to measure residual phase wander and act on the transfer function band of the phase of phase-locked loop output which is preferably without ring filters.

Device for timing reconstruction of a data channel transported on a packet network and its process

A stream of incoming digital signals (I ) is split ( ) into a plurality of derived streams (I ) that are sent over respective transmission links (R). The derived streams transmitted in this way (I ) are then bundled again ( ) to form a stream of outgoing digital signals (I ). At the transmission end, symbols are inserted into the derived streams (I ) simultaneously and at constant intervals (T), in order to subdivide the transmitted information into packets of equal duration and aligned in time when being transmitted. At the reception end, the above symbols associated to the transmitted derived streams (I ) are generally time-shifted as a consequence of the transmission over the various transmission links (R). At the reception end ( ) the time alignment of the above symbols is recovered so as to recover the time alignment of the various transmitted derived streams (I ), so that the subsequent bundling can take place on the streams correctly time-aligned.

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Turin, Italy

Roberto Quasso