Abstract: A device may obtain an input symbol sequence for transmission. The device may further obtain a set of DPS sequences associated with Ni highest eigenvalues of a Slepian matrix and a set of extended sequences comprising the set of DPS sequences appended with extension symbols derived based on a convolution of respective DPS sequences. The device may modulate the set of extended sequences based on the input symbol sequence to generate a signal comprising Slepian-based waveform symbol(s). Another device may receive the signal, remove the extension symbols, and demodulate Slepian-based waveform symbol(s) of the signal based on the set of DPS sequences.

Abstract: A device may obtain a sequence of input samples. The device may further obtain a first set of sequences, which may be based on discrete prolate spheroidal sequences associated with eigenvalues having a value larger than a first threshold. The device may determine a first projected sample sequence comprising a projection of the sequence of input samples to the first set of sequences and generate a signal based on the first projected sample sequence. Another device may determine a window of received samples of the signal and project the window of received samples to the first set of sequences or filter the window of received samples to obtain a first sample sequence. The detection of the received signal may then be performed based on the first sample sequence.

Abstract: A signal may be generated by modulating a plurality of chirp signals with a set of input symbols. Chirp signals may be characterized by a second order bivariate polynomial and the coefficients of the quadratic terms of the polynomial may be selected to achieve desired frequency diversity. Furthermore, at least one of the coefficients may be adjusted based on channel state information to mitigate effective Doppler spread in a discrete affine Fourier transform domain virtual channel.

Abstract: A wireless transmitter is configured to generate a first pilot signal having a first signal strength profile over a first plurality of frequency sub-bands and a second pilot signal having a second signal strength profile over a second plurality of frequency sub-bands and to transmit the first pilot signal and the second pilot signal via the communication channel to the wireless receiver. The first plurality of frequency sub-bands and the second plurality of frequency sub-bands comprise at least three common frequency sub-bands, wherein the common frequency sub-bands comprise at least one central common frequency sub-band and two boundary common frequency sub-bands, wherein a respective signal strength of the at least one central common frequency sub-band is smaller than a respective signal strength of the two boundary common frequency sub-bands.

Abstract: The present disclosure relates to a transmitter device and a receiver device for a wireless communication system supporting low-overhead multiple access for a layered Fast Fourier Transform-based wireless communication. The transmitter device obtains a plurality of first data symbol matrices in a delay-Doppler domain for a plurality of users, a plurality of second data symbol matrices in an intermediate-frequency domain for the plurality of users, and an aggregated matrix in the intermediate-frequency domain for the plurality of users. The receiver device obtains an aggregated matrix in the intermediate-frequency domain for a plurality of users based on a signal received in a time domain from the transmitter device, a plurality of first data symbol matrices in the intermediate-frequency domain for the plurality of users, and a plurality of second data symbol matrices in the delay-Doppler domain for the plurality of users.

Abstract: A transmitter device, a receiver device and a transceiver device for a multicarrier modulation scheme. The transmitter device is configured to obtain a plurality of signature roots based on receiving a feedback message from a receiver device, construct a Lagrange matrix or a Vandermonde matrix from the plurality of signature roots, and generate a multicarrier modulated signal based on the Lagrange matrix or the Vandermonde matrix. The receiver device is configured to determine a plurality of signature roots, construct a Lagrange matrix or a Vandermonde matrix from the plurality of signature roots, and perform a demodulation of a multicarrier modulated signal based on the Lagrange matrix or the Vandermonde matrix. The transceiver device comprises a transmitter device configured to generate a multicarrier modulated signal, and a receiver device configured to perform a demodulation of the multicarrier modulated signal.

Abstract: A transmitter device, a receiver device and a transceiver device for a multicarrier modulation scheme. The transmitter device is configured to obtain a plurality of signature roots based on receiving a feedback message from a receiver device, construct a Lagrange matrix or a Vandermonde matrix from the plurality of signature roots, and generate a multicarrier modulated signal based on the Lagrange matrix or the Vandermonde matrix. The receiver device is configured to determine a plurality of signature roots, construct a Lagrange matrix or a Vandermonde matrix from the plurality of signature roots, and perform a demodulation of a multicarrier modulated signal based on the Lagrange matrix or the Vandermonde matrix. The transceiver device comprises a transmitter device configured to generate a multicarrier modulated signal, and a receiver device configured to perform a demodulation of the multicarrier modulated signal.

Abstract: The present invention relates to single carrier modulation schemes, and presents a transmitter device, a receiver device and a transceiver device for a single carrier modulation scheme. The transmitter device is configured to generate a plurality of signature roots for a single carrier transmission, construct a Lagrange matrix and a Vandermonde matrix based on the plurality of signature roots, and generate a single carrier modulated signal based on the Lagrange and the Vandermonde matrix. The receiver device is configured to determine a plurality of signature roots, construct at least two Vandermonde matrices from the plurality of signature roots, and perform a demodulation of a single carrier modulated signal based on the at least two Vandermonde matrices. The transceiver device comprising a transmitter device configured to generate a single carrier modulated signal, and a receiver device configured to perform a demodulation of the single carrier modulated signal.

Abstract: The application relates to a communication device comprising: a communication interface configured to transmit a pilot signal via a communication channel to a second communication device and to receive a plurality of data elements representing channel state information (CSI) from the second communication device, wherein the plurality of data elements are a subset of a set of data elements representing the full channel state information (CSI) being available at the second communication device; and a processing unit configured to generate the full channel state information (CSI) on the basis of the plurality of data elements by applying a fitting scheme to the plurality of data elements received from the second communication device.

Abstract: A data processing system having a neural network architecture for receiving a binary network input and, in dependence on the binary network input, propagating signals via a plurality of processing nodes, in accordance with respective binary weights, to form a network output, the data processing system being configured to train a node by implementing an error correcting function to identify a set of binary weights which minimize, for a given input to the node, any error between an output of the node when formed in accordance with current binary weights of the node and a preferred output from the node and to update the binary weights of the node to be the identified weights. This training is performed without storing and/or using any higher arithmetic precision weights or other components.

Abstract: A transmitter device, a receiver device and a transceiver device for a multicarrier modulation scheme. The transmitter device is configured to obtain a plurality of signature roots based on receiving a feedback message from a receiver device, construct a Lagrange matrix or a Vandermonde matrix from the plurality of signature roots, and generate a multicarrier modulated signal based on the Lagrange matrix or the Vandermonde matrix. The receiver device is configured to determine a plurality of signature roots, construct a Lagrange matrix or a Vandermonde matrix from the plurality of signature roots, and perform a demodulation of a multicarrier modulated signal based on the Lagrange matrix or the Vandermonde matrix. The transceiver device comprises a transmitter device configured to generate a multicarrier modulated signal, and a receiver device configured to perform a demodulation of the multicarrier modulated signal.

Abstract: The present invention relates to single carrier modulation schemes, and presents a transmitter device, a receiver device and a transceiver device for a single carrier modulation scheme. The transmitter device is configured to generate a plurality of signature roots for a single carrier transmission, construct a Lagrange matrix and a Vandermonde matrix based on the plurality of signature roots, and generate a single carrier modulated signal based on the Lagrange and the Vandermonde matrix. The receiver device is configured to determine a plurality of signature roots, construct at least two Vandermonde matrices from the plurality of signature roots, and perform a demodulation of a single carrier modulated signal based on the at least two Vandermonde matrices. The transceiver device comprising a transmitter device configured to generate a single carrier modulated signal, and a receiver device configured to perform a demodulation of the single carrier modulated signal.

Abstract: An apparatus reports feedback messages for channel state information estimation with respect to a channel between a first antenna of a first device and a second antenna of a second device. The apparatus is configured to determine a frequency response across a predetermined bandwidth of the channel between the first antenna and the second antenna, sample a phase of the determined frequency response in order to obtain a number of samples of the phase of the determined frequency response, and send to a further apparatus at least a first feedback message including information of at least a subset of the obtained samples.

Abstract: The invention relates to an apparatus (301) for managing full-duplex communication between a base station (BS0) and a set of user equipments (101a,b), the base station (BS0) comprising a plurality of transmitter antennas, the plurality of transmitter antennas being associated with a downlink communication channel H between the base station (BS0) and the set of user equipments (101a,b) and a plurality of interference channels Gi between the base station (BS0) and a plurality of neighboring base stations (BSi).

Abstract: An apparatus reports feedback messages for channel state information estimation with respect to a channel between a first antenna of a first device and a second antenna of a second device. The apparatus is configured to determine a frequency response across a predetermined bandwidth of the channel between the first antenna and the second antenna, sample a phase of the determined frequency response in order to obtain a number of samples of the phase of the determined frequency response, and send to a further apparatus at least a first feedback message including information of at least a subset of the obtained samples.

Abstract: The invention relates to a communication device comprising: a communication interface configured to transmit a pilot signal via a communication channel to a further communication device and to receive a plurality of data elements representing channel state information (CSI) from the further communication device, wherein the plurality of data elements are a subset of a set of data elements representing the full channel state information (CSI) being available at the further communication device; and a processing unit configured to generate the full channel state information (CSI) on the basis of the plurality of data elements by applying a fitting scheme to the plurality of data elements received from the further communication device.

Abstract: The invention relates to an apparatus (301) for managing full-duplex communication between a base station (BS0) and a set of user equipments (101a,b), the base station (BS0) comprising a plurality of transmitter antennas, the plurality of transmitter antennas being associated with a downlink communication channel H between the base station (BS0) and the set of user equipments (101a,b) and a plurality of interference channels Gi between the base station (BS0) and a plurality of neighboring base stations (BSi).

Abstract: A method for determining the configuration of a set of nodes and/or links of a cluster possessing a cluster head comprises: triggering an information request by interrogating one or more nodes or links and asking the said nodes or the said links to evaluate for each communication channel an index of communication quality, and then selecting a configuration when the cluster head has received the indices of communication quality; verifying whether the indices of quality received comply with a given constraint, retaining the indices which satisfy the largest number of nodes or links, and triggering a configuration selection procedure; if the configuration retained satisfies the set of nodes or links interrogated, then updating the list of channels and communicating this configuration to the nodes or links of the cluster; if not, updating the list of communication channels, or remaining in the initial configuration of the set of nodes or links.

Abstract: A method for determining the configuration of a set of nodes and/or links of a cluster possessing a cluster head comprises: triggering an information request by interrogating one or more nodes or links and asking the said nodes or the said links to evaluate for each communication channel an index of communication quality, and then selecting a configuration when the cluster head has received the indices of communication quality; verifying whether the indices of quality received comply with a given constraint, retaining the indices which satisfy the largest number of nodes or links, and triggering a configuration selection procedure; if the configuration retained satisfies the set of nodes or links interrogated, then updating the list of channels and communicating this configuration to the nodes or links of the cluster; if not, updating the list of communication channels, or remaining in the initial configuration of the set of nodes or links.

Abstract: An OFDM modulation process and means for transmitting multiple carriers through a communication channel having a bandwidth arranged ion chunks with further subcarriers being allocated to form at least one guard band, comprising automatically and periodically shifting said chunks to the left or to the side in order to overlap said guard band and increase spectral diversity.