Abstract: A first wireless device may receive, from a second wireless device, a transmission associated with an MLC scheme. The MLC scheme may include a plurality of bits with at least one first bit corresponding to a first level of the plurality of bits and at least one second bit corresponding to a second level of the plurality of bits. The at least one first bit may be coded with a first level of complexity, but the at least one second bit may be coded with either the first level of complexity or a second level of complexity, where the first level of complexity may be a higher level of complexity than the second level of complexity. The first wireless device may decode the at least one first bit and the at least one second bit using a decoder having a corresponding level of complexity.

Abstract: A device for OOK modulating an input signal, comprising at least: an injection-locked oscillator comprising a power supply input, an injection signal input and an output to which the OOK modulated signal is to be delivered; a first controlled switch comprising a control input to which the input signal is to be applied, and configured to couple or not a power supply source to the power supply input of the injection-locked oscillator in dependence on the value of the input signal; a periodic signal providing device configured to deliver, on an output which is electrically coupled to the injection signal input of the injection-locked oscillator, a periodic injection signal whose frequency and amplitude trigger locking of the injection-locked oscillator at the frequency of the injection signal or a multiple of this frequency.

Abstract: A control method includes entering, by a powered device, a first status, controlling, by the powered device, at least one of a plurality of first loads in the powered device to be in a connected state, and controlling, by the powered device, a second load in the powered device to be in a disconnected state.

Abstract: Methods, systems, and devices for wireless communications (e.g., vehicle to everything systems) are described relating to an adaptive design of demodulation reference signals (DMRS) density based on user equipment (UE) velocity. A UE may send assistance information to a transmitting UE to help identify a DMRS pattern based on the relative speed between the two UEs. Also, the transmitter may determine the adaptive DMRS pattern based on its speed without information of the receiver's speed. The transmitter may indicate the adaptive DMRS pattern in control information to the receiver. A base station may receive assistance information, and the base station may determine the adaptive DMRS pattern to be used by the transmitting UE based on the received assistance information and then indicate the adaptive DMRS pattern to the transmitting UE. A UE may determine an adaptive DMRS pattern to use based on feedback from the receiving UE.

Abstract: In one embodiment, an apparatus comprises: a baseband processor having a preamble generation circuit to generate a preamble for an orthogonal frequency division multiplexing (OFDM) transmission, the preamble generation circuit to generate the preamble having a first portion comprising a first plurality of symbols and a second portion comprising a second plurality of symbols, where the preamble generation circuit is to generate at least some of the second plurality of symbols having at least one frequency disruption between successive symbols of the second portion; a digital-to-analog converter (DAC) coupled to the baseband processor to convert the first plurality of symbols and the second plurality of symbols to analog signals; a mixer coupled to the DAC to upconvert the analog signals to radio frequency (RF) signals; and a power amplifier coupled to the mixer to amplify the RF signals.

Abstract: A PoE system includes a plurality of PoE devices and a hub that are coupled in a ring configuration through a plurality of network cables. The hub is coupled to two of the network cables, and provides electric power to at least one of the network cables that is coupled to the hub. Each of the PoE devices is coupled to two of the network cables, receives electric power from one of the two network cables, and supplies electric power to the other one of the two network cables. As a consequence, each of the PoE devices can be directly or indirectly powered by the hub.

Abstract: A communication technique and a system thereof for are provided fusing a 5G communication system to support higher data rates, which is subsequent to the 4G system, with IoT technology. The disclosure may be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safe-related services, etc.) based on 5G communication technology and IoT-related technology. A method of operating a base station in a wireless communication system includes transmitting channel feedback configuration information to a terminal; receiving channel feedback information from the terminal; and performing transmission/reception of data, based on the channel feedback information. The channel feedback information may include information indicating a state of an antenna panel of the terminal.

Abstract: Disclosed herein are a gateway-signaling method for frequency/timing offsets and an apparatus for the same. An apparatus for transmitting a broadcast signal according to an embodiment of the present invention includes a frequency/timing decision unit for determining a center frequency to which a frequency offset is applied using a carrier offset, which is identified using a timing and a management packet transmitted through a Studio-to-Transmitter Link (STL); and an RF signal generation unit for generating an RF signal to be transmitted, which corresponds to the center frequency.

Abstract: A system and method for detecting a failure in a redundant signal path during operation of the redundant path is disclosed. A test signal is sequentially injected into each signal path while an input signal is conducted by the other signal path not receiving the test signal. The test signal is selected at a frequency to verify operation of a filter connected in series along each path. A processor generates the test signal, injects the test signal at the input of the filter, and receives the output of the filter. The processor then generates a frequency response of the filter in each signal path as a function of the output from the filter and of the original test signal. The frequency response obtained along each of the redundant signal paths is compared to each other to detect a failure of one of the filters present along the respective signal paths.

Abstract: The present disclosure relates to a method (10) for characterizing a wideband RF device-under-test (DUT) by means of a narrowband RF source or a narrowband RF receiver, the method (10) comprising: selecting (11) a bandwidth of the wideband RF DUT to be analyzed; dividing (12) the selected bandwidth into at least two overlapping sub-bands, the respective sub-bands having a frequency range that corresponds to a bandwidth of the narrowband RF source or the narrowband RF receiver; acquiring (13) a response of the wideband RF DUT for each of the at least two overlapping sub-bands by means of at least two narrowband measurements using the narrowband RF source or the narrowband RF receiver; and calculating (14) a continuous amplitude response and a continuous phase response of the wideband RF DUT in a frequency range that corresponds to the combined bandwidth of the at least two overlapping sub-bands, said calculation making use of the overlap of the sub-bands.

Abstract: The described technology is generally directed towards multidimensional grid sampling for radio frequency power feedback. A mobile device can sample radio frequency signal power at multiple sample points, and can send sample values to a base station. The multiple sample points can be defined with reference to a grid having a first dimension and a second dimension, such as time and frequency, or delay and Doppler. A variety of techniques are provided to define the multiple sample points.

Abstract: A radio frequency module has a substrate, a first chip inductor, an integrated circuit, and a first amplifier connected to the first chip inductor. The first chip inductor is on a first main surface of the substrate and the integrated circuit is on a second main surface of the substrate, the second main surface being opposite the first main surface. The integrated circuit includes the first amplifier. When the substrate is viewed from a direction perpendicular to the first main surface of the substrate, the first chip inductor at least partially overlaps the integrated circuit.

Abstract: A method for receiving a modulated signal, includes the steps of receiving a signal modulated by a pulse position modulation (PPM) or a pulse width modulation (PWM) or a pulse amplitude modulation (PAM) or an on-off keying (OOK) amplitude modulation, corresponding to the transmission of a sequence of one or more consecutive digital symbols, squaring the received signal, projecting the square of the received signal onto multiple components of an analogue signal basis in order to obtain an analogue vector of dimension equal to the number of projection components, the components of the analogue signal basis being non-constant functions, digitizing the analogue vector into a digital vector, jointly demodulating the components of the digital vector by way of a maximum likelihood algorithm in order to estimate the transmitted sequence of one or more consecutive digital symbols.

Abstract: A method includes receiving, at a radar timing card, radar timing information and a synchronous clock signal. The method also includes generating, using the radar timing card, a timing trigger to indicate a time of transmission for radar return information. The method further includes receiving, at each of multiple digital-to-analog converter (DAC) channels of one or more DAC cards, the synchronous clock signal and the timing trigger. In addition, the method includes simultaneously transmitting, from each of the DAC channels, a dedicated portion of the radar return information based on the time of transmission indicated by the timing trigger. The synchronous clock signal is used to align the simultaneous transmissions of the DAC channels on the one or more DAC cards.

Abstract: A single stage transmitter that operates at high speed is configured to operate as a driver in write mode and a termination in read mode. The driver configuration includes two circuits. The first circuit includes a PMOS cross-coupled device and a PMOS cascode circuit. The second circuit includes a NMOS cross-coupled device and a NMOS cascode circuit. The PMOS cross-coupled device and the NMOS cross-coupled device is connected in series by alternating current (AC) coupling capacitors. The termination configuration includes a third circuit including MOSFET transmission gates and an inverter controlled by a termination mode enable signal. In write mode, the third circuit of the single stage transmitter is turned off and the first and second circuits are operational. In read mode, the first and second circuits of the single stage transmitter are inactive and the third circuit is operational.

Abstract: An apparatus and method to transmit and receive messages within and near the noise floor by pulsed signals that are time synchronized and are not easily intercepted by use of frequency and time slots as well as intermittent transmissions.

Abstract: Apparatus and method for linearizing narrowband carriers with low resolution predistorters are provided. The method includes amplifying, using a power amplifier, one or more broadcast carriers and linearizing, using a predistorter coupled to the power amplifier, the one or more broadcast carriers. The method also includes determining, using an electronic processor, a composite bandwidth of the one or more broadcast carriers and determining, using the electronic processor, whether the composite bandwidth is below a modulation bandwidth of the predistorter. The method further includes controlling, using the electronic processor, a pacification carrier generator coupled to the electronic processor to combine a pacification carrier with the one or more broadcast carriers when the composite bandwidth is below the minimum modulation bandwidth of the predistorter.

Abstract: Described herein is a data communication system using power over Ethernet (PoE) for power distribution, comprising a first and second powered device (PD), each of which is adapted to communicate with each other through an Ethernet data path (EDP) and is further adapted to receive direct current (DC) power using a PoE protocol, and a mid-span power injection device (MSPID) adapted to provide a communications interface such that data communications passes through the MSPID to and from each of the PDs, and wherein the MSPID is further adapted to provide a first DC power to only the first PD using the EDP, and to provide a second DC power to only the second PD using the EDP.

Abstract: Disclosed herein are a gateway-signaling method for Multiple-Input Single-Output (MISO) operation and an apparatus for the same. An apparatus for transmitting a broadcast signal according to an embodiment of the present invention includes a predistortion unit for performing predistortion for decorrelating signals corresponding to transmitters using the number of transmitters used for MISO and a transmitter coefficient index that are identified using a timing and management packet transmitted through a Studio-to-Transmitter Link (STL), thereby generating a pre-distorted signal; and an RF signal generation unit for generating an RF transmission signal using the pre-distorted signal corresponding to the transmitter coefficient index.

Abstract: Apparatuses, systems, and methods identify, among a plurality of DSL lines, a subgroup of DSL lines based on one or more common characteristics and use the common characteristic(s) to identify a set of power control parameters that enable an upstream rate for the subgroup of DSL lines that is different than an upstream rate for DSL lines in the plurality of DSL lines that do not include the subgroup of DSL lines before applying the set of power control parameters to the subgroup of DSL lines to achieve the upstream rate.