Abstract: The present disclosure relates to a 5G or pre-5G communication system to be provided for supporting a higher data transfer rate beyond a 4G communication system such as LTE. The present invention relates to a NOMA system based FQAM connection method and an apparatus therefor. The present invention can increase the user transfer rate at a cell boundary. The scheduling method in a wireless communication system, according to an embodiment of the present invention, comprises a step of receiving a signal-to-interference-noise ratio (SINR) value and an alpha value from a terminal; a step of determining, on the basis of the SINR value and the alpha value, a Gaussian SINR value; a step of pairing users on the basis of the Gaussian SINR value; and a step of re-computing MCS on the basis of a re-computed alpha value.

Abstract: A receiver circuit comprising a beamformer and an MRC-block. The beamformer configured to: apply combination-weighting-values to a first-BF-input-signal and a second-BF-input-signal in order to provide a BF-combination-signal; and apply suppression-weighting-values to the first-BF-input-signal and the second-BF-input-signal in order to provide a BF-suppression-signal. The MRC-block comprising: a first-demodulator configured to demodulate the BF-combination-signal in order to provide a demodulated-combination-signal that comprises bit metrics; a second-demodulator configured to demodulate the BF-suppression-signal in order to provide a demodulated-suppression-signal that comprises bit metrics; and a combiner configured to combine the demodulated-combination-signal with the demodulated-suppression-signal in order to provide an MRC-output-signal.

Abstract: A MIMO demodulating apparatus includes: a phase difference corrector that compensates for a phase shift by utilizing the phase difference between received signals to output phase corrected signals; an interference compensator that receives the phase corrected signals as input and, by means of adaptive control, performs elimination of interference and separation and extraction of a desired signal; a phase noise compensator to compensate for phase error remaining in the desired signal; a signal determiner that determines transmitted data from the output signal of the phase noise compensator to output the transmitted data and outputs an error signal; and an error signal phase rotator that subjects the error signal to a phase rotating process in accordance with the phase error compensation amount to perform adaptive control.

Abstract: Power transmission system (1) for power transmission of electric power (P) from a power source (2A) to a power sink (4A) which is connected to the power source (2A) via a power transfer cable (3), wherein the power source (2A) has a first pole with a first electric potential, which is connected via parallel current lines of a first conducting pair of the power transfer cable (3) to a first pole of the power sink (4A), and a second pole with a second electric potential, which is connected via further parallel current lines of a second conducting pair of the power transfer cable (3) to a second pole of the power sink (4A), wherein, during the power transmission via the current lines, a user data signal can be transmitted between the power source (2A) and the power sink (4A) via at least one conducting pair with current lines of the same electric potential, uninfluenced by the power transmission.

Abstract: A method for measuring characteristics of a transmitter unit of a device under test is described. A signal generator is provided that comprises a baseband processing unit having at least a digital pre-distortion sub-unit. A device under test is provided that has a transmitter unit. A measuring unit is provided. Said signal generator and said device under test are connected with each other via an interface. At least one input signal is generated by using said signal generator, said input signal is forwarded to said device under test. An output signal of said device under test is measured by using said measuring unit. A first pre-distortion parameter for an increasing input amplitude is determined by using said digital pre-distortion sub-unit. A second pre-distortion parameter for a decreasing input amplitude is determined by using said digital pre-distortion sub-unit. Said first and second pre-distortion parameters are determined such that said output signal has a high fidelity.

Abstract: Methods and systems are described for receiving a signal to be sampled and responsively generating, at a pair of common nodes, a differential current representative of the received signal, receiving a plurality of sampling interval signals, each sampling interval signal received at a corresponding sampling phase of a plurality of sampling phases, for each sampling phase, pre-charging a corresponding pair of output nodes using a pre-charging FET pair receiving the sampling interval signal, forming a differential output voltage by discharging the corresponding pair of output nodes via a discharging FET pair connected to the pair of common nodes, the FET pair receiving the sampling interval signal and selectively enabling the differential current to discharge the corresponding pair of output nodes, and latching the differential output voltage.

Abstract: The apparatus may be a transmitter. The transmitter including a modulator configured to modulate a binary input sequence with a particular modulation coding scheme to generate a modulated input signal. The transmitter also including a spectral shaping circuit configured to spectral shape a first version of the input signal to generate a spectral shaped signal. The spectral shaping circuit also includes a FIR filter configured to lower peak-to-average power ratio of the spectral shaped signal. The transmitter also includes a discrete Fourier transform circuit configured to discrete Fourier transform a second version of the input signal to generate a discrete Fourier transformed signal. The modulated input signal is one of the first version of the input signal or the second version of the input signal and the spectral shaped signal is another of the first version of the input signal or the second version of the input signal.

Abstract: The present invention relates to a transmit diversity method for FQAM and an apparatus therefor. According to the present invention, a transmit diversity method for FQAM and apparatus therefor are provided, the transmit diversity method comprising the steps of: modulating data into at least one FQAM symbol; interleaving a plurality of tones constituting the at least one FQAM symbol such that tones having the same index are located in adjacent resources; and transmitting the at least one interleaved FQAM symbol through at least one transceving unit.

Abstract: Embodiments of the inventive concepts disclosed herein are directed to a system, apparatus, and method for streaming compression of periodic binary data. A data transmitter of an aircraft can receive flight data from a flight data acquisition unit. The data transmitter can store the flight data. The data transmitter can compare words corresponding to a first data frame to words corresponding to a second data frame. The data transmitter can identify a word block of consecutive unchanged words, consecutive changed words, or one changed word and one unchanged word. The data transmitter can generate and transmit a header identifying a number of consecutive unchanged words in a word block. The data transmitter can generate a header identifying a number of consecutive changed words in a word block and transmit the header and the word block. The data transmitter can generate a header identifying two words in a word block and transmit the header and the word block.

Abstract: A signal processing device including a first signal processing chain having a first output signal; a second signal processing chain comprising a second output signal with a higher accuracy than the first output signal; a controller configured to switch, based on a desired accuracy, whether to switch between the first and second signal processing chains as a path for an original input signal; and a modifier configured to modify the original input signal, the first output signal, or the second output signal to generate a modified input, a modified first output, or a modified second output signal when the controller switches between the first and second signal processing chains.

Abstract: A power receiving apparatus includes: a communication circuit that receives a control signal from a power transmitting apparatus through a wired transmission line; a control circuit that determines a propagation time in which the control signal is propagated from the power transmitting apparatus to the power receiving apparatus through the wired transmission line; and a demodulation circuit that receives modulated power from the power transmitting apparatus through a wired transmission line, and demodulates, based on the determined propagation time, the modulated power in synchronization with a phase of the modulated power.

Abstract: The present disclosure provides a transmission method comprising splitting a block of bits to be transmitted into a number of groups each consisting of k+2q bits, wherein k and q are natural numbers and each of the groups includes a subgroup consisting of k bits and two subgroups each consisting of q bits and performing 2q-ary QAM modulation on the subgroups of q bits from the groups of k+2q bits to obtain QAM symbols, respectively. The QAM symbols are processed so that two QAM symbols obtained from the two subgroups of q bits in each of the groups of k+2q bits are mapped onto at least two antennas as consecutive processed symbols. Through the use of 2k-ary FSK modulation, a frequency tone to which the two consecutive processed symbols are allocated is selected according to the subgroup of k bits from each of the groups of k+2q bits before transmission.

Abstract: A method may generate a demodulated sine component for a sequence of samples of a servo burst window of a position error signal using a sine weight look up table and generate a demodulated cosine component for the sequence of samples of the servo burst window of the position error signal using a cosine weight look up table. The sine weight and the cosine weight look up tables may have indexes representing a phase range. The method may generate a demodulated phase component signal and a demodulated amplitude component signal for the sequence of samples of the servo burst window of the position error signal based on the demodulated sine component and the demodulated cosine component using a Coordinate Rotation Digital Computer at least in part by iteratively rotating a vector based on the demodulated sine component and the demodulated cosine component and summing angular changes in the vector.

Abstract: The present invention provides a large-scale MIMO communication method and device in a base station and a UE. In one embodiment, a base station transmits first signaling firstly, wherein the first signaling indicates the configuration information of a first RS, and the first RS includes M RS ports; and then receives second signaling, wherein the second signaling indicates M1 RS ports in the first RS, M is a positive integer greater than 1, M1 is a positive integer smaller than or equal to M, and transmitting cells of the first RS are cells other than transmitting cells of the first signaling. The present invention effectively reduces interference with neighboring cells during Massive MIMO transmission, and solves the problem of SRS contamination. Meanwhile, the present invention is compatible with the existing LTE system as much as possible and has good compatibility.

Abstract: A method to generate a wireless waveform for use in a wireless communication system, a wireless communication system and computer program product thereof The method comprises the generation of a waveform for application in the wireless communication system characterized by significant phase noise, Doppler spread, multipath, frequency instability, and/or low power efficiency by at the transmitter side: creating a discrete-time instantaneous frequency signal {tilde over (f)}[n]; appending a cyclic prefix with length LCP to the beginning of the discrete-time instantaneous frequency signal {tilde over (f)}[n]; constructing a discrete-time unwrapped instantaneous phase ?[n]; constructing a discrete-time complex baseband signal, and appending at the beginning a Constant Amplitude Zero Autocorrelation, CAZAC, signal of length LCP for multipath detection; and passing the constructed discrete-time complex baseband signal through a digital-to-analog, DAC, converter to yield the continuous-time radio frequency signal s(

Abstract: A circuit for implementing a differential input receiver is described. The circuit comprises an input circuit having a first input node and a second input node configured to receive a differential input signal; a first output circuit having a first capacitor coupled between the first input node and a first output node and a second capacitor coupled between the second input node and a second output node, wherein the first output circuit generates an output signal at the first output and the second output when the input signal is in a first frequency range; and a second output circuit comprising an amplifier having a first amplifier input coupled to the first input node and a second amplifier input coupled to the second input node, wherein the second output circuit generates an output signal when the input signal is in a second frequency range which extends lower than the first frequency range. A method of implementing a differential input receiver is also described.

Abstract: Embodiments of the invention provide a decoder for decoding a data signal received through a transmission channel in a communication system, said transmission channel being represented by an upper triangular matrix, said signal carrying transmitted symbols, each symbol carrying a set of information bits, wherein said decoder comprises: a processing unit (213) configured to determine at least one sub-block decoding parameter given a target quality of service metric; A sub-block decoding unit (214) configured to divide said data signal into a number of sub-vectors based on said at least one sub-block decoding parameter in accordance with a division of said upper triangular matrix into a number of sub-matrices, said sub-block decoding unit (214) being further configured to determine at least one estimate of each sub-vector of transmitted symbols from said sub-vectors, and determine an estimate of the transmitted symbols from said estimates.

Abstract: A communication apparatus has a communicator configured to communicate with an external device capable of communication at multiple communication rates, a communication rate setter configured to change a communication rate of the communicator, and a period detector configured to detect a change period of the communication rates of the external device. The communication rate setter changes the communication rate based on the change period detected by the period detector.

Abstract: The present invention provides a method of transmitting a broadcast signal. The method of transmitting a broadcast signal according to the present invention provides a system capable of supporting future broadcast services in environments supporting next-generation hybrid broadcast using terrestrial broadcast networks and the Internet. In addition, efficient signaling methods capable of covering both terrestrial broadcast networks and the Internet in environments supporting future hybrid broadcast are provided.

Abstract: A high-frequency signal predistortion device includes a high-frequency signal estimator, a predistortion estimator, and a predistorter. The high-frequency signal estimator is configured to determine non-linear distortion characteristics of high-frequency signals transmitted by antennas. The predistortion estimator is coupled to the high-frequency signal estimator. The predistortion estimator is configured to determine a predistortion coefficient based on the non-linear distortion characteristics. The predistorter is coupled to the predistortion estimator. The predistorter is configured to distort a base signal of the high-frequency signals based on the predistortion coefficient.