Intel Corporation

Infineon Technologies Ag

Intel Mobile Communications Gmbh

Apple Inc.

Intel Deutschland Gmbh

Lantiq Deutschland Gmbh

Intel IP Corporation

Stefan Fechtel

Cecilia Carbonelli

Andreas Menkhoff

Bertram Gunzelmann

Jong-Kae Fwu

Debdeep Chatterjee

Emily H Qi

Markus Dominik Mueck

Nageen Himayat

Carlos Horacio Aldana

Shilpa Talwar

Bahareh Sadeghi

Hassnaa Moustafa

Zhibin Yu

Thorsten Clevorn

Dave A Cavalcanti

Marcio Rogerio Juliato

Ana Lucia Pinheiro

Sabine Roessel

Harry G Skinner

Debabani Choudhury

Rafael Misoczki

Ingolf Karls

Duncan Kitchin

Jeffrey R Foerster

Kilian Roth

Stefan Franz

Andrey Chervyakov

Yeong-Sun Hwang

Burkhard Becker

Holger Neuhaus

Andreas Bury

Franz J Eder

Kilian Peter Anton Roth

Christian Rom

Benny Vejlgaard

Placido Mursia

Manoj Ravichandran

The present disclosure relates to a transceiver comprising a transmitter with transformation circuitry configured to transform a frequency-domain transmit symbol from frequency domain to time domain to generate a time-domain transmit signal, a receiver with inverse transformation circuitry configured to transform a time-domain receive signal from time domain to frequency domain to generate a frequency-domain receive symbol, and self-interference cancellation circuitry configured to modify the frequency-domain receive symbol based on at least one frequency-domain transmit symbol and a frequency-domain crosstalk channel estimate of a crosstalk channel between the transmitter and the receiver.

Methods and transceivers for self-interference mitigation

A communication device for multi-radio access technology (RAT) communications includes one or more processors and a plurality of transceivers. Each transceiver is configured to operate in at least one RAT of a plurality of RATs. The processors are configured to establish connection with a second communication device using a first transceiver of the plurality of transceivers and a first RAT of the plurality of RATs. A first data stream associated with a communication link connected to the second communication device and a third communication device is receive via a convergence function at the second communication device. The communication link uses a second RAT of the plurality of RATs. A code sequence is applied to a second data stream to generate an encoded second data stream, which is transmitted to the third communication device via a second communication link established based on information received via the first data stream.

V2X communications using multiple radio access technologies (multi-RAT)

Systems, devices, and techniques for V2X communications using multiple radio access technologies (RATs) are described herein. A communication associated with one or more of the multiple RATs may be received at a device. The device may include a transceiver interface with multiple connections to communicate with multiple transceiver chains. The multiple transceiver chains can be configured to support multiple RATs. Additionally, the multiple transceiver chains may be controlled via the multiple connections of the transceiver interface to coordinate the multiple RATs to complete the communication.

A method of generating channel estimates of a communication channel in an OFDM system includes receiving references symbols from at least one time frequency observation block of a predetermined block size in frequency and time; generating subspace-transformed reference symbols from the received reference symbols; and subspace filtering the subspace-transformed reference symbols to generate a channel estimate for a communication channel target time; wherein a latency between a communication channel time instant of a currently received reference symbol and the communication channel target time is smaller than the observation block size in time.

Method, software and device for generating channel estimates

A communication device is provided that includes a receiver configured to receive a signal. The communication device further includes a circuit configured to determine an interference reference signal based on an interference signal, to multiply the received signal with the interference reference signal in the time domain to form a multiplication signal and to filter the multiplication signal to form a filtered signal.

Received signal filtering device and method therefor

A channel estimation coefficients generator () for generating channel estimation coefficients for channel estimation filtering includes: a parameter acquisition unit () configured to acquire a first set of input parameters () and to acquire a second set of input parameters (), wherein a time variability of the first set of input parameters () is smaller than a time variability of the second set of input parameters (); a first channel estimation coefficients generator () configured to generate a prototype set of channel estimation coefficients () based on the first set of input parameters (); and a second channel estimation coefficients generator () configured to generate a refined set of channel estimation coefficients () based on the prototype set of channel estimation coefficients () and based on the second set of input parameters ().

Device and method for generating channel estimation coefficients for channel estimation filtering

A channel estimation circuit () includes an input interface (). The input interface () is configured to receive a plurality of pilot symbols from a communication channel. Furthermore, the channel estimation circuit () includes processing circuitry (). The processing circuitry () is configured to generate a channel autocorrelation matrix and at least one channel cross-correlation vector. The generating of the channel autocorrelation matrix and the channel cross-correlation vector can be based on predetermined statistical information on the communication channel. Additionally, the processing circuitry () is configured to generate a subspace mapping for a subspace transformation based on the channel autocorrelation matrix. Additionally, the processing circuitry () is configured to generate a subspace transformed channel autocorrelation matrix, at least one subspace transformed channel cross-correlation vector, and a plurality of subspace transformed pilot symbols, by applying the subspace mapping to the channel autocorrelation matrix, the channel cross-correlation vector, and to the plurality of pilot symbols. Additionally, the processing circuitry () is configured to generate a plurality of subspace channel estimation filter coefficients based on the subspace transformed channel autocorrelation matrix and the sub-space transformed channel cross-correlation vector. Additionally, the processing circuitry () is configured to generate an estimate of at least one channel coefficient of the communication channel based on the subspace transformed pilot symbols and the subspace channel estimation filter coefficients. Furthermore, the channel estimation circuit () includes an output interface () configured to provide the estimate of the at least one channel coefficient.

Channel estimation circuits and methods for estimating communication channels

Examples provide a determination circuit and apparatus, a mobile transceiver, a communication device, a method for determining, a computer program and a storage to determine a spatial transmission or reception mode. The determination circuit () is configured to determine a spatial transmission or reception mode for a mobile transceiver (). The determination circuit () comprises at least one sensor () configured to sense attenuating object information, and a control module () configured to determine the spatial transmission or reception mode based on the sensed attenuating object information. The control module () is configured to control the spatial transmission or reception mode of the mobile transceiver ().

Determination circuit and apparatus, mobile transceiver, communication device, method for determining, computer program and storage to determine a spatial transmission mode

The disclosure relates to a cluster detection device for detecting clusters in a beam-formed transmission, the cluster detection device comprising: a receiver, configured to receive a radio signal comprising time-frequency resources, wherein the time-frequency resources comprise a plurality of reference signals; a delay profile detector, configured to detect a set of delay profiles based on frequency-direction filtering of the plurality of reference signals; a Doppler profile detector, configured to detect a set of delay-Doppler profiles based on time-direction filtering of the set of delay profiles; and a cluster detection postprocessor, configured to derive a set of cluster parameters from the set of delay-Doppler profiles.

Device and method for detecting clusters in beamformed transmission

A communication terminal is described comprising a receiver configured to receive pilot signal samples via a plurality of communication channels and to determine an interference matrix which includes, for each pilot signal sample, interference information representing an amount of interference included in the pilot signal sample and a channel estimator configured to determine a channel autocorrelation matrix for the plurality of communication channels and to determine a linear transformation which diagonalizes or triagonalizes the autocorrelation matrix, to transform the interference matrix by the transformation and to reduce the transformed interference matrix by discarding components corresponding to predetermined eigenvectors of the autocorrelation matrix, to determine filter weights for the signal samples based on the reduced interference matrix and to determine channel estimates by filtering the pilot signal samples using the determined filter weights.

Communication terminal and method for channel estimation

A method for detecting a transmission from an interfering radio cell includes: receiving a signal comprising transmissions from a serving radio cell and from a plurality of interfering radio cells, wherein a reference symbol of a transmission from at least one interfering radio cell of the plurality of interfering radio cells is colliding with a reference symbol of a transmission from the serving radio cell; generating a set of transmission signal hypotheses, each of which is dependent on at least one interferer parameter of the at least one interfering radio cell; obtaining at least one interferer radio cell identifier; and detecting a transmission from at least one interfering radio cell of the plurality of interfering radio cells in the received signal based on the at least one interferer radio cell identifier and the set of transmission signal hypotheses.

Method and device for detecting a transmission from an interfering radio cell

A method including processing a data frame, the data frame having a predetermined frame size and including at least one data symbol configured to form a plurality of sub-carriers in the frequency domain, wherein each of the at least one data symbol comprises a user data portion and a guard interval portion, wherein each of the at least one data symbol includes a plurality of sub-symbols, and wherein at least one of the following parameters is variable during the processing: a size of the guard interval portion, a size of the user data portion, a size of the at least one data symbol, a number of data symbols the data frame comprises, a content of the guard interval portion, and a configuration of the sub-symbol boundaries.

Methods and devices for processing a data frame

A method for estimating noise and interferer parameters includes receiving a signal comprising a noise and interference signal contribution. Noise and interference power samples are generated based on the signal. The noise and interference power samples are quantized into quantization levels. The occurrences of noise and interference power samples are accumulated for each quantization level during an observation period. Noise and interferer parameters are estimated based on the number of occurrences of noise and interference power samples per quantization level during the observation period.

Method and device for interferer scheduling detection and noise and interferer parameter estimation

A method () for processing resource blocks in a receiver may include receiving () a signal comprising transmissions from a plurality of radio cells, wherein received samples of the signal are arranged in a plurality of resource blocks (); forming () a plurality of clusters ({x}) based on a similarity criterion with respect to the plurality of resource blocks (); and assigning () each resource block of the plurality of resource blocks () to one cluster of the plurality of clusters ({x}).

Method and device for processing resource blocks

In embodiments, apparatuses, methods, and storage media may be described for removing, from a frequency domain (FD) portion of a signal, a guard interval portion. One or more data symbols of the resultant unconstrained FD portion of the signal may then be constrained according to one or more tolerance parameters or thresholds. Other embodiments may be described and/or claimed.

Growing community of inventors

Zorneding, Germany

Stefan Fechtel