Abstract: Various aspects of the disclosure relate to limits for modulation and coding scheme (MCS) values. For example, a first set of limits (e.g., minimum and maximum limits) may be used for a first MCS table and a second set of limits may be used for a second MCS table. The disclosure also relates in some aspects to inter-device signaling that indicates which minimum and maximum limits for an MCS table are to be used for communication between the devices.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a random access preamble to a base station as part of a two-step random access procedure. The UE may generate the preamble by identifying a discrete Fourier transform (DFT) matrix and generating a set of sequences based on the DFT matrix. Each sequence of the set of sequences may be generated by selecting a column of the DFT matrix and performing deterministic sampling of respective entries from the selected column in accordance with a sampling function. The UE may then select a sequence from the set of sequences based on generating the set of sequence. The UE may transmit the selected sequence to a wireless device (e.g., a base station).

Abstract: A retail agent determines a parameter of an activity proposal model by using data stored in a past record database, and determines parameters of an activity determination model and an activity value evaluation model by further using base activity simulation data. Consequently, it is possible to appropriately determine parameters of a subsystem control method in a complex system which cannot be embodied as a simulator and shows a significant change with respect to past record data.

Abstract: A method for transmitting a sounding reference signal (SRS) by a terminal comprises the steps of: receiving, from a base station, the number of SRS repetition symbols, group hopping patterns, sequence hopping patterns, pattern selection information, and hopping selection information; generating an SRS sequence by applying a group hopping pattern and a sequence hopping pattern selected according to the pattern selection information and the hopping selection information; and transmitting the SRS on the basis of the SRS sequence, wherein the group hopping patterns include a group hopping pattern calculated using the number of SRS repetition symbols, the sequence hopping patterns include a sequence hopping pattern calculated using the number of SRS repetition symbols, and the hopping selection information selects whether to activate group hopping and sequence hopping.

Abstract: Presented herein are techniques for assigning Ultra-Wideband (UWB) anchors for client ranging. A location server can estimate a coarse location of a mobile device using a localization technique other than a UWB localization technique. The localization technique can involve multiple wireless access points or other radio devices. The location server can define an area around the coarse location to identify a set of candidate anchors for UWB ranging. The set of candidate anchors can be disposed within the area and include at least a subset of the radio devices. The location server can modify the set of candidate anchors to create a modified set of candidate anchors that includes only UWB-enabled devices. The location server can select a primary anchor from the modified set of candidate anchors and send a command to cause a UWB ranging procedure to be initiated between the primary anchor and the mobile device.

Abstract: The present disclosure provides a beam failure recovery method and a UE. The beam failure recovery method includes: performing beam failure recovery using non-contention-based random access; and performing the beam failure recovery using contention-based random access in the case that the non-contention-based random access fails.

Abstract: A hardware architecture for implementing a convolutional neural network.

Abstract: This disclosure provides a split-path equalizer and a clock recovery circuit. More particularly, clock recovery operation is enhanced, particularly at high-signaling rates, by separately equalizing each of a data path and an edge path. In specific embodiments, the data path is equalized in a manner that maximizes signal-to-noise ratio and the edge path is equalized in a manner that emphasizes symmetric edge response for a single unit interval and zero edge response for other unit intervals (e.g., irrespective of peak voltage margin). Such equalization tightens edge grouping and thus enhances clock recovery, while at the same time optimizing data-path sampling. Techniques are also disclosed for addressing split-path equalization-induced skew.

Abstract: Embodiments of the present disclosure relate to wireless communication devices, systems comprising wireless communication devices, and to an apparatus, a method and a computer program for a wireless communication device. The apparatus comprises a transceiver module for transmitting and receiving wireless transmissions. The apparatus comprises a processing module that is configured to control the transceiver module. The processing module is configured to communicate with a further wireless communication device via the transceiver module. The communication with the further wireless communication device is based on a transmission of data frames between the wireless communication device and the further wireless communication device. Each data frame is based on a two-dimensional grid in a time-frequency plane having a time dimension resolution and a frequency dimension resolution.

Abstract: An iterative detection and decoding (IDD) circuit is provided. The iterative detection and decoding (IDD) circuit is configured to perform M outer iterations on a received signal, and Ni inner iterations are performed during the ith outer iteration of the M outer iterations, where M is an integer greater than 1, i is an integer less than or equal to M, and N1 to NM are integers and include at least two different values.

Abstract: Various embodiments disclosed herein provide for a low complexity transmitter structure for active antenna arrays by reducing the number of digital predistortion extraction loops that need to be performed. Digital predistortion (DPD) corrects any non-linearities in a power amplifier. By determining which power amplifiers have similar characteristics in an array, and thus may use similar predistortion coefficients, once the DPD coefficients are determine for one of the grouped power amplifiers, DPD can be performed on each of the grouped power amplifiers based on the DPD coefficients.

Abstract: A wireless communication device transmits beam sweeping information that indicates a beam sweeping property of the device, and a network node in an associated wireless communication network configures transmission or reception beamforming with respect to the device at one or more Transmission/Reception in the network, based on the beamforming property. Among the various advantages flowing from configuring network-side beamforming for the device in view of the beamforming property, the network need not configure its beamforming operations according to worst-case or minimum-capability assumptions for the device, and, instead tailors its transmission or reception beamforming in dependence on the beamforming property of the device.

Abstract: Disclosed is an ultra-wideband (UWB) system and, more particularly, a UWB system capable of optimizing UWB operation for vehicles through hopping. The UWB system includes a memory in which a UWB communication program is embedded and a processor which executes the program. The processor performs UWB time-hopping and frequency-hopping to establish a communication channel.

Abstract: A method is described synchronization in a communication system which comprises a master anchor device, a first anchor device, and a second anchor device. The method comprises: i) transmitting, by the master anchor device, a first message to the first anchor device and to the second anchor device using a first ultra-wide band (UWB) communication, wherein the first message is indicative of a master clock of the master anchor device receiving, by the first anchor device, the first message, and synchronizing a first clock of the first anchor device based on the master clock, and iii) receiving, by the second anchor device, the first message, and synchronizing a second clock of the second anchor device based on the master clock. Furthermore, a communication system and a use of UWB communication is described.

Abstract: A communication method includes generating at a first node, a message of a predetermined message temporal length that indicates an input value to be encoded and transmitting, at the first node, a signal including a pulse train corresponding to the generated message. The signal including the pulse train includes two pulses that define start and end of the message, respectively, and further two pulses that define within the message, a first time interval calculated from the input value in accordance with a first function and a second time interval calculated from the input value in accordance with a second function, respectively.

Abstract: A transmitter transmits payload data using Orthogonal Frequency Division Multiplexed (OFDM) symbols. The first OFDM symbol is a first type having a number of sub-carriers which is less than or equal to the number of sub-carriers of the one or more second OFDM symbols of a second type and a guard interval for the first OFDM symbol is selected in dependence upon the longest possible guard interval of the second OFDM symbol. Accordingly an OFDM communications system can be formed in which data is transmitted using a frame structure in which a guard interval is adapted to allow a mix of different types of OFDM symbols.

Abstract: A system for pulse based wideband signaling comprises a transmitter that performs physical layer encoding of both digital and analog data into a pulse repetition rate signal, and modulation of the pulse repetition rate signal into wideband radio frequency pulses, and transmission of the pulses as a wideband RF signal, a receiver that performs physical layer demodulation of the wideband RF signal into a pulse repetition rate signal, and decoding of the pulse repetition rate signal into digital and analog data, wherein the system provides improvement in controlling and balancing the variables of bandwidth, signal to noise ratio, range, and power consumption.

Abstract: Embodiments of the present disclosure provide a method, apparatus and computer program products for DC offset degradation. A method implemented in a massive multi-input multi-output (MIMO) system, which comprises a plurality of receiver branches, includes receiving a radio frequency (RF) signal in the plurality of receive branches. The method further includes configuring different local frequencies of a plurality of local oscillators respectively in the plurality of receiver branches according to a carrier frequency of the RF signal, to enable direct current (DC) offsets in the plurality of receiver branches to be distinguishable from each other in frequency.

Abstract: A satellite communication system is arranged for consecutively illuminating a plurality of contours on earth. The satellite communication system includes a modulator adjusting its transmission of data and dummy data to detected switching time instants, without causing too long delays or buffer overflows, or without impacting a return link synchronization. Traffic can be seamlessly switched to a redundant transmitter which is aligned with the beam hopping satellite to efficiently and reliably achieve synchronization.

Abstract: A wireless communication device for a road side zone includes a wireless communication circuit that forms beams in plural different directions in a time division scheme in an area which includes plural routes. The wireless communication device for a road side zone includes a recording circuit that records time transition in the direction of the beam used by the wireless communication circuit, which forms the beams in the plural different directions in a time division scheme, for wireless communication with a second wireless communication device provided to a mobile apparatus which moves on any of the plural routes.