Abstract: A method for transmitting electromagnetic signals by a vehicle moving towards a target device including a communication system provided with a radiating system that receives and transmits electromagnetic signals, performs an alignment step with the target device to establish a first communication direction with the target device, communicates with the target device by orienting the radiating system to receive and transmit data along the first communication direction, and performs a subsequent phase for maintaining the alignment with the target device to determine a future position and an orientation of the radiating system with a sensor being operatively connected to an electronic control unit of the vehicle configured to implement control and/or driving assistance functions of the vehicle based on information received from the sensor, and ultimately orientates the electromagnetic signals emitted by the radiating system on the basis of the determined direction of communication.

Abstract: A method of communication between two agents, at least one of which is a mobile vehicle, where a first agent includes at least one sensor and a second agent includes a second sensor. The second agent sends to the first agent, via a radio link, features and control parameters of the second sensor necessary to directly query the second sensor. The first agent sends to the second sensor a request for data selected by the first agent on the basis of a selection criterion dependent on the features of the second sensor, the request generated using the control parameters of the second sensor. The second agent sends to the first agent the second sensor’s data requested with said data request. Several agents adapted to implement the method are also described.

Abstract: A method for transmitting electromagnetic signals by a vehicle moving towards a target device including a communication system provided with a radiating system that receives and transmits electromagnetic signals, performs an alignment step with the target device to establish a first communication direction with the target device, communicates with the target device by orienting the radiating system to receive and transmit data along the first communication direction, and performs a subsequent phase for maintaining the alignment with the target device to determine a future position and an orientation of the radiating system with a sensor being operatively connected to an electronic control unit of the vehicle configured to implement control and/or driving assistance functions of the vehicle based on information received from the sensor, and ultimately orientates the electromagnetic signals emitted by the radiating system on the basis of the determined direction of communication.

Abstract: It is described a modulator apparatus (3) comprising: an input terminal (23) structured to receive an analog electrical signal (x(t)) having an information content to be transmitted; a loop filter structured to receive an error signal (?(t) and provide a filtered signal (s(t)), the loop filter being configured to minimize said error signal (?(t)); a modulator device (10) configured to module the filtered signal (s(t)) and provide a Pulse Width Modulated, PWM, signal (y(t)) to be transmitted including a plurality of pulses having corresponding widths correlated to non-quantized amplitudes of the filtered signal (s(t)); a first pulse width demodulator (11) configured to receive the PWM, signal (y(t)) and provide a demodulated signal (?(t)) and a difference module (12) configured to receive the analog electrical signal (x(t)) and the demodulated signal (?(t)) and provide the error signal (?(t)).

Abstract: It is described a modulator apparatus (3) comprising: an input terminal (23) structured to receive an analog electrical signal (x(t)) having an information content to be transmitted; a loop filter structured to receive an error signal (?(t) and provide a filtered signal (s(t)), the loop filter being configured to minimize said error signal (?(t)); a modulator device (10) configured to module the filtered signal (s(t)) and provide a Pulse Width Modulated, PWM, signal (y(t)) to be transmitted including a plurality of pulses having corresponding widths correlated to non-quantized amplitudes of the filtered signal (s(t)); a first pulse width demodulator (11) configured to receive the PWM, signal (y(t)) and provide a demodulated signal (?(t)) and a difference module (12) configured to receive the analog electrical signal (x(t)) and the demodulated signal (?(t)) and provide the error signal (?(t)).

Abstract: An apparatus for transmitting optical signals between a central unit (1) and at least one remote unit (2), said central unit comprising—at least one amplified spontaneous emission source (11, 110) of an optical signal, first means (17, 170) adapted to polarize the optical signal deriving from the amplified spontaneous emission source in a first polarization plane by forming a first polarized optical signal (POS). The apparatus comprises second means (24) configured to receive said first polarized optical signal and to polarize it in a second polarization plane, orthogonal to the first plane, by forming in said first means a second optical signal (SOS) which is orthogonally polarized with respect to the first optical signal (17).

Abstract: A conversion unit configured for downconverting a RF radio signal from a first RF band to a first LF band, and up-converting an electric signal from a second LF band to a second RF band; the LF and RF bands have same bandwidth, while RF bands are centered on central frequencies being higher than the LF central frequencies of the LF bands. The conversion unit selects the copper cable link and the first LF band on which transmitting the downconverted RF signal according to a predetermined criteria between a plurality of RF frequency bands and the copper cable links. Moreover, the conversion unit selects the RF connection and the second RF band on which transmitting the upconverted LF signal according to a predetermined criteria between said plurality of RF connections and a plurality of RF bands.

Abstract: A conversion unit configured for downconverting a RF radio signal from a first RF band to a first LF band, and up-converting an electric signal from a second LF band to a second RF band; the LF and RF bands have same bandwidth, while RF bands are centered on central frequencies being higher than the LF central frequencies of the LF bands. The conversion unit selects the copper cable link and the first LF band on which transmitting the downconverted RF signal according to a predetermined criteria between a plurality of RF frequency bands and the copper cable links. Moreover, the conversion unit selects the RF connection and the second RF band on which transmitting the upconverted LF signal according to a predetermined criteria between said plurality of RF connections and a plurality of RF bands.

Abstract: A femtocell telecommunication system equipment comprising: a base apparatus structured to provide a first information signal and control signals; an electrical conductor based transmission line connected to the base apparatus; and a bidirectional conversion apparatus adapted to receive/transmit from/on the transmission line the first signal, and receive on the transmission line the control signals. The bidirectional apparatus comprising: a processing module structured to process the first signal to generate a second information signal and vice-versa; the second signal being adapted to be transmitted/received by an antenna device connectable to the bidirectional apparatus.

Abstract: It is described a transmitter of signals, comprising: an encoder (1) configured to generate a two-state modulation signal (xD(t)) from a first input signal (x(t)), means (2) configured to act on a second input signal (y(t)) as a function of the two-state modulation signal; the means are configured to reflect the second input signal from the transmitter in correspondence of only one state (ON) of two states (ON, OFF) of the two-state modulation signal.

Abstract: An apparatus for transmitting optical signals between a central unit (1) and at least one remote unit (2), said central unit comprising—at least one amplified spontaneous emission source (11, 110) of an optical signal, first means (17, 170) adapted to polarize the optical signal deriving from the amplified spontaneous emission source in a first polarization plane by forming a first polarized optical signal (POS). The apparatus comprises second means (24) configured to receive said first polarized optical signal and to polarize it in a second polarization plane, orthogonal to the first plane, by forming in said first means a second optical signal (SOS) which is orthogonally polarized with respect to the first optical signal (17).

Abstract: A femtocell telecommunication system equipment comprising: a base apparatus structured to provide a first information signal and control signals; an electrical conductor based transmission line connected to said base apparatus; a bidirectional conversion apparatus adapted to receive/transmit from/on the transmission line the first signal and the control signals; the bidirectional apparatus comprising: a processing module structured to process the first signal to generate a second information signal and vice-versa; the second signal being adapted to be transmitted/received by an antenna device connectable to the bidirectional apparatus.

Abstract: A femtocell telecommunication system equipment comprising: a base apparatus structured to provide a first information signal and control signals; an electrical conductor based transmission line connected to said base apparatus; a bidirectional conversion apparatus adapted to receive/transmit from/on the transmission line the first signal and the control signals; the bidirectional apparatus comprising: a processing module structured to process the first signal to generate a second information signal and vice-versa; the second signal being adapted to be transmitted/received by an antenna device connectable to the bidirectional apparatus.

Abstract: A femtocell telecommunication system equipment comprising: a base apparatus structured to provide a first information signal and control signals; an electrical conductor based transmission line connected to said base apparatus; a bidirectional conversion apparatus adapted to receive/transmit from/on the transmission line the first signal and the control signals; the bidirectional apparatus comprising: a processing module structured to process the first signal to generate a second information signal and vice-versa; the second signal being adapted to be transmitted/received by an antenna device connectable to the bidirectional apparatus.

Abstract: A femtocell telecommunication system equipment comprising: a base apparatus structured to provide a first information signal and control signals; an electrical conductor based transmission line connected to said base apparatus; a bidirectional conversion apparatus adapted to receive/transmit from/on the transmission line the first signal and the control signals; the bidirectional apparatus comprising: a processing module structured to process the first signal to generate a second information signal and vice-versa; the second signal being adapted to be transmitted/received by an antenna device connectable to the bidirectional apparatus.

Abstract: A femtocell telecommunication system equipment comprising: a base apparatus structured to provide a first information signal and control signals; an electrical conductor based transmission line connected to said base apparatus; a bidirectional conversion apparatus adapted to receive/transmit from/on the transmission line the first signal and the control signals; the bidirectional apparatus comprising: a processing module structured to process the first signal to generate a second information signal and vice-versa; the second signal being adapted to be transmitted/received by an antenna device connectable to the bidirectional apparatus.

Abstract: A model of a pulse-coupled discrete-time phase locked loops (PLLs) in a wireless network is provided. The PLLs at each node in the network may have an indeterminate order. A method for securing discrete-time distributed phase locked loops (PLLs) in a wireless network by including an outlier detection scheme in the timing update at each node is also provided. The method may include evaluating each collaborating node based on a weighted average of the clock errors and evaluating the dispersion of clock errors.

Abstract: A channel response matrix gathering all unknown elements for all K pilot subcarriers on links between transmitting and receiving antennas, is Least Squares (full-rank) estimated. The interference covariance matrix is estimated from the residual. The correlation of the interference covariance matrix is computed at each new symbol and compared with a threshold. If the interference is significantly changed, the interference covariance matrix is re-initialized, otherwise a running average of the interference covariance matrix is updated with the actual value. Both the updated/re-initialized interference covariance matrix and the autocorrelation matrix of the transmitted pilot sequences (stored in the receiver) are used for whitening the estimated channel matrix before submission to modal filtering for rank reduction. The original spatial and/or temporal correlations are reintroduced in the reduced-rank channel matrix by inverse whitening.

Abstract: The present invention relates to a device and method for channel estimation. The method of channel estimation for slotted radio communication systems, in particular, mobile communication systems determines a least squares estimate of the channel and refines such estimate by a noise reduction through a Reduced-Complexity approach. The refinement includes determination of spatial and temporal subspaces respectively comprising the actual directions of arrival of the signal among all distinguishable directions and the actual times of arrival of the signal among all distinguishable times of arrival, and the projection of the least squares estimate on said subspaces.