Abstract: A method of operating a wireless communication apparatus including an antenna array including a plurality of sub-arrays includes sweeping a receiving beam formed in each of the sub-arrays such that the receiving beam has a plurality of receiving beam patterns at a respective plurality of sweeping positions, and receiving a signal through the antenna array at each of the sweeping positions, generating base channel matrix information including channel matrices corresponding to the receiving beam patterns for each of the sub-arrays, based on the signal, performing a digital sweeping operation on at least one group combination, which is determined using the base channel matrix information, and generating supplemental channel matrix information, and selecting a receiving beam pattern of the antenna array using the base channel matrix information and the supplemental channel matrix information.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a base station, a report indicating that a cooperative reception group including the UE and one or more other UEs connected to the UE over an out-of-band link supports one or more downlink transmit beamforming techniques. The UE may determine, based at least in part on the one or more downlink transmit beamforming techniques supported by the cooperative reception group, a downlink transmit precoder associated with relaxed beamforming nulling. The UE may decode a downlink transmission received from the base station based at least in part on the downlink transmit precoder and one or more decoded bits received from the one or more other UEs in the cooperative reception group. Numerous other aspects are provided.

Abstract: The present disclosure relates to an electronic apparatus, a wireless communication method, and a computer-readable medium. According to one embodiment, an electronic apparatus used at a base station side comprises a processing circuit. The processing circuit is configured to carry out control so as to carry out multiple-input multiple-output transmission by means of two or more transmitting and receiving points, and to send indication information to a user equipment, wherein the indication information is related to a scheme of mapping between a spatial multiplexing layer and a code word for transmission by means of two or more transmitting and receiving points.

Abstract: A method and structure for equalization in coherent optical receivers. Block-based LMS (BLMS) algorithm is one of the many efficient adaptive equalization algorithms used to (i) increase convergence speed and (ii) reduce implementation complexity. Since the computation of the equalizer output and the gradient of the error are obtained using a linear convolution, BLMS can be efficiently implemented in the frequency domain with the constrained frequency-domain BLMS (FBLMS) adaptive algorithm. The present invention introduces a novel reduced complexity constrained FBLMS algorithm. This new approach replaces the two discrete Fourier transform (DFT) stages required to evaluate the DFT of the gradient error, by a simple frequency domain filtering. Implementation complexity can be drastically reduced in comparison to the standard constrained FBLMS. Furthermore, the new approach achieves better performance than that obtained with the unconstrained FBLMS in ultra-high speed coherent optical receivers.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may synchronize a beam switch of the base station with transmission of a reference signal for channel state feedback, and schedule a channel state feedback report to be transmitted after the transmission of the reference signal for channel state feedback. Numerous other aspects are provided.

Abstract: A system for transmitting data to a first and a second user device within a user's premises, the system including a distribution point having an aggregation device comprising a plurality of access network modems and having a plurality of lines connected thereto, a splitter device connected to the aggregation point 10 via one of the lines connected thereto and being located within the user's premises, a first connection between the splitter device and a first customer premises equipment modem, the first customer premises equipment modem being connected to the first user device, and a second connection between the splitter device and a second customer premises equipment modem, the second customer premises equipment modem being connected to the second user device, wherein the aggregation device is operable to transmit data for the first device via a first one of the plurality of modems in the aggregation device, the splitter device and the first customer premises equipment modem using a Digital Subscriber Line p

Abstract: In an OAM multiplexing communication system that subjects a plurality of signal sequences to multiplex transmission by using an OAM mode, a transmitting station includes a transmitting antenna using an M-UCA formed of a plurality of UCAs, and a unit performing basis transformation in each of the rotational direction dimension and a diameter direction dimension in a polar coordinate system having a center of UCAs as an origin, and subjecting the plurality of signal sequences to multiplex transmission for each complex mode formed by a combination of different bases in each dimension. A receiving station includes a receiving antenna using an M-UCA, and a unit receiving a signal subjected to multiplex transmission from the transmitting station, performing basis transformation in each of the rotational direction dimension and the diameter direction dimension by using the received signal, and demultiplexing the plurality of signal sequences subjected to the multiplex transmission.

Abstract: Examples described herein include systems and methods which include wireless devices and systems with examples of an autocorrelation calculator. An electronic device including an autocorrelation calculator may be configured to calculate an autocorrelation matrix including an autocorrelation of symbols indicative of a first radio frequency (“RF”) signal and a second RF signal. The electronic device may calculate the autocorrelation matrix based on a stored autocorrelation matrix and the autocorrelation of symbols indicative of the first RF signal and symbols indicative of the second RF signal. The stored autocorrelation matrix may represent another received signal at a different time period than a time period of the first and second RF signals. Examples of the systems and methods may facilitate the processing of data for wireless and may utilize less memory space than a device than a scheme that stores and calculates autocorrelation from a large dataset computed from various time points.

Abstract: Aspects of the subject disclosure may include, providing, by a power supply of a communication device, energy to the communication device, wherein the power supply directly obtains the energy from a transmission medium via a capacitive divider and a DC converter, and wherein the communication device includes an insulator that electrically insulates the transmission medium from a utility structure supporting the communication device; adjusting a target ratio of the capacitive divider according to a load signal received from a load sensor coupled to the communication device, where the adjusting the target ratio comprises changing a state of a switch connected with at least a portion of a group of first capacitors of the capacitive divider according to the load signal; generating, by the communication device, a signal; and inducing according to the signal, by a coupler of the communication device, an electromagnetic wave that propagates along the transmission medium without requiring an electrical return path.

Abstract: The present invention relates to a method of transmitting and a method of receiving signals, and corresponding apparatus. One aspect of the present invention relates to a method of obtaining a field for indicating a time de-interleaving depth from a layer 1 (L1) header of preamble symbols.

Abstract: An apparatus and a method for controlling a voltage conversion mode in an electronic device are provided. The electronic device includes a power management module, a communication processor, and at least one processor operably connected to the communication processor, wherein the at least one processor identifies a modulation order used for communication with an external device, in a case that communication with the external device is performed using a wireless resource, and configures, based on the modulation order, a voltage conversion mode of the power management module that supplies power to the communication processor to a pulse frequency modulation (PFM) mode or a pulse width modulation (PWM) mode.

Abstract: The invention relates to transmitting symbols in a MIMO wireless communication system, said method comprising: determining a p value; applying to a first block of M data symbols X=(X0, . . . XM-1) a pre-coder to obtain a second block of M symbols Y=(Y0, . . . YM-1) with Formula (I); applying a M size DFT then a N size IDFT to the first block of M symbols to obtain a first SC-FDMA symbol, said first SC-FDMA symbol being of a given duration; applying a M size DFT then a N size IDFT to the second block of M symbols to obtain a second SC-FDMA symbol, said second SC-FDMA symbol being of the given duration; transmitting during a time interval of the given duration, simultaneously the first and second SC-FDMA symbols, into the radio signal.

Abstract: Systems, apparatuses, and methods are described for wireless communications. A wireless device may distribute power for various transmission types based on a priority, which may be received from a base station.

Abstract: Various embodiments of the present technology comprise a method and apparatus for a continuous time linear equalizer (CTLE). In various embodiments, the CTLE comprises a cross-coupled transistor pair that operates as a negative impedance converter. The CTLE produces a transfer function that provides high gain peaking at a high frequency without increasing the size of the die area and/or the power supply level.

Abstract: A device including an equalizer that includes a first input configured to receive an input signal, a second input configured to receive a reference signal, and a third input configured to receive an adjustment signal. The equalizer also includes a first output configured to transmit a corrected signal, wherein the corrected signal is generated based on data outputs controlled via the input signal, the reference signal, and a clock signal, wherein the data outputs are modified based on the first adjustment signal, wherein corrected signal offsets inter-symbol interference on the input signal based on a data bit received at the first input prior to reception of the input signal.

Abstract: Encoders and decoders for encoding and decoding data according to a coding scheme. The encoder converts N bits of input data into M voltage signals for transmission over M parallel wires to a decoder having one or two decoding stages that recover the N bits of data from the M voltage signals. The coding scheme is an N-bit, M-wire PAM-Q code in which each voltage signal wi has one of Q voltage levels l1-lQ, where l1<l2< . . . <lQ, and the different sets of M voltage signals for the different N-bit input values are permutations of a single set of M voltage signals. The decoder has a comparator stage. For the decoder having one other decoding stage, the other decoding stage is a computation stage or a logic stage that is before or after the comparator stage.

Abstract: A powered communication device (31) comprises: a configurable resistor unit (35) coupled to the LAN port and adapted to generate a classification signal designating a power class of the powered communication device to be detected by the LAN switch, and a power module comprising a power converter (38) adapted to supply power to the electronic control unit (40) and to the peripherals in response to receiving power from the LAN port, wherein the electronic control unit (40) is configured to determine a power requirement of the communication device, detect a current resistance state of the configurable resistor unit (35) and, in response to detecting that the power requirement overshoots a power class associated to the current resistance state of the configurable resistor unit: reconfigure the configurable resistor unit (35) to designate a higher power class and, actuate the power switch (37) to transitorily put the LAN port (33) in a low-current state to be detected by the LAN switch.

Abstract: A method and apparatus for processing or generating a high-frequency signal using parallel and undersampled baseband signal processing in the frequency domain.

Abstract: The disclosure pertains to using ultra-wideband (UWB) radio communications to execute a pedestrian-vehicle rendezvous. In one example operation, a personal device such as a smartphone, is used to identify a location of a vehicle with a first level of accuracy. For example, the smartphone may be used by a pedestrian to obtain GPS location coordinates of a ride-hail vehicle summoned by the pedestrian. The vehicle may be located relatively far from the pedestrian. The smartphone may be configured to automatically establish a UWB radio link with a UWB transponder in the vehicle and/or a smartphone carried by a driver of the ride-hail vehicle, when the vehicle is within range to establish UWB communications. The UWB radio link may be used to execute one or more of various procedures to locate the vehicle with a second level of accuracy that is higher than the first level of accuracy.

Abstract: A transmission device that performs multiple-input multiple-output (MIMO) transmission of transmit data using a plurality of fundamental bands. The transmission device includes an error correction coding unit, a mapping unit, and a MIMO coding unit. The error correction coding unit, for each data block of predefined length, performs error correction coding and thereby generates an error correction coded frame. The mapping unit maps each predefined number of bits in the error correction coded frame to a corresponding symbol and thereby generates an error correction coded block. The MIMO coding unit performs MIMO coding with respect to the error correction coded block. Components of data included in the error correction coded block are allocated to at least two of the fundamental bands and transmitted.