Abstract: A multi-panel base station test system includes a base station radio unit configured with a plurality of antenna panels positioned at a first end of a test chamber of the multi-panel base station test system. The multi-panel base station test system includes a plurality of test antennas positioned at a second end of the test chamber opposing the first end. The multi-panel base station test system includes a microwave lens positioned between the plurality of antenna panels and the plurality of test antennas in the test chamber. The microwave lens is configured to focus respective beams transmitted from each of the plurality of antenna panels toward respective focal points associated with each of the plurality of test antennas based on steering of the plurality of antenna panels.

Abstract: A gateway device and system and method for use of the same are disclosed. In one embodiment, multiple wireless transceivers are located within an in-wall housing, which also interconnectedly includes a processor, memory, various physical ports and wireless transceivers. To improve convenience, the gateway device may establish a pairing with a proximate wireless-enabled interactive programmable device. Virtual remote control functionality for various amenities may then be provided. To improve safety, the gateway device may be incorporated into a geolocation and safety network.

Abstract: An electronic device may include wireless circuitry having one or more radios and one or more antennas. The wireless circuitry may operate in the presence of radio-frequency interference coming from various sources, which can cause a loss of sensitivity or desensitization of the wireless circuitry. To detect and mitigate desensitization of the wireless circuitry, one or more processors may receive wireless circuitry performance metric data, discriminate between wideband interference and narrowband interference based on the wireless circuitry performance metric data, and use different representative noise floor values for wideband interference or narrowband interference to characterize the desensitization of the wireless circuitry.

Abstract: The demodulating apparatus includes circuits of receiving modulated radio signals coming from a plurality of transmission devices, first demodulating a first reception signal DPSK-modulated among the radio signals, modulating demodulation signals into modulation signals based on DPSK, estimating an amplitude and a phase of a propagation signal on a propagation path leading to the reception circuit from the transmission device on the basis of the radio signal and the modulation signal, first generating, based on the variables, a first simulated signal simulating the first reception signal from the modulation signal, extracting a signal obtained by cancelling the first simulated signal from the radio signals, and repeating processes of the first demodulating, the modulating, the estimating, the first generating and the extracting to such a limit as to enable the first demodulating.

Abstract: Systems, devices, methods, and computer-readable media for spread spectrum (SS) receiver interference mitigation are presented. An interference mitigation unit can include an interference analyzer that receives a complex-valued signal and estimates statistical characteristics of at least a portion of the complex-valued signal, a unit controller that receives the estimated statistical characteristics from the interference analyzer, classifies the interference distribution based on statistical characteristics as a Gaussian, long-tail, or short-tail, selects a non-linearity for that distribution, and a programmable non-linear module that performs a non-linear functional conversion of an envelope of the received complex-valued signal using a non-linear input-output characteristic based on the classification by the unit controller.

Abstract: A control node for an array antenna configured so as to apply an attenuation and a phase shift to a radiofrequency signal on the basis of a control signal, to a beamforming network, to an array antenna and to a satellite includes the control node. It comprises a quadratic divider that delivers an in-phase signal and a quadrature signal on separate transmission channels, a combiner configured so as to sum the signals transmitted on two of the transmission channels, each transmission channel comprising at least: one attenuation cell activated on the basis of the value of a dedicated bit of the control signal, and one phase shift cell configured so as to apply a fixed phase shift, activated on the basis of the result of combinational logic implemented on bits of the control signal.

Abstract: A measurement system utilizing metasurfaces and compressive sensing is provided that measures specular and diffuse RF reflection properties of a sample omnidirectionally across a broad frequency regime in a monostatic, bistatic, or BRDF sense. The measurement system may be used to measure the full hemispherical (or spherical) reflection from a target that has been illuminated in a monostatic or bistatic case. The measurement system may also be used to measure the full BRDF of a sample or spatially complex bistatic reflections from a sample.

Abstract: Technologies directed to terminated bridge elements between panel gaps are of an antenna structure are described. The antenna structure includes a first circuit board, a second circuit board, and a structure. The first circuit board includes a first set of antenna elements. The second circuit board includes a second set of antenna elements. The structure is located over a gap between the first circuit board and the second circuit board. The structure includes an antenna element. The antenna element, an antenna element of the first set of antenna elements, and an antenna element of the second set of antenna elements form a lattice pattern.

Abstract: A radio-frequency module is able to simultaneously communicate a signal of a first communication band and a signal of a second communication band and does not simultaneously communicate a signal of the first communication band and a signal of a third communication band. The radio-frequency module includes a mounting substrate, a filter, a filter, and a filter. The filter is provided on the mounting substrate and has the first communication band as the pass band thereof. The filter is provided on the mounting substrate and has the second communication band as the pass band thereof. The filter is provided on the mounting substrate and has the third communication band as the pass band thereof. The filter and the filter are indirectly stacked on top of each other and the filter and the filter are not stacked on top of each other.

Abstract: A front-end module may include an acoustic wave filter with a first and second interdigital transducer electrode. The first interdigital transducer electrode may be single-ended with a first input bus bar that receives an input signal and a second input bus bar connected to ground. The second interdigital transducer electrode may be differential with a first output bus bar connected to a first output terminal and a second output bus bar connected to a second output terminal. The front-end module may include a low noise amplifier (LNA) that outputs a differential signal via a differential output and has a differential input connected to the acoustic wave filter. The LNA may include a first input transistor that receives a first signal from the first output terminal of the acoustic wave filter and a second input transistor that receives a second signal from the second output terminal of the acoustic wave filter.

Abstract: According to one embodiment, an electronic apparatus includes a receiver and a signal addition circuit. The receiver receives a reception signal of a first frequency band. The signal addition circuit is configured to input the reception signal and a calibration signal of a second frequency band which is different from the first frequency band to the receiver.

Abstract: A feed line connects an RFIC and a radiating element. A baseband ground plane (BB ground) is connected to a ground terminal of a BBIC. A radio frequency ground plane (RF ground) is placed in such a manner as to overlap the BB ground. The RF ground serves as a return path of the feed line. A first inter-ground connection circuit connects the BB ground and the RF ground. Furthermore, a second inter-ground connection circuit connects the BB ground and the RF ground. Connecting parts between these grounds and the second inter-ground connection circuit are arranged closer to the edges of these grounds than connecting parts between these grounds and the first inter-ground connection circuit. The connecting part between the ground and the second inter-ground connection circuit is placed on one side of a certain imaginary straight line that passes substantially the geometric center of the ground.

Abstract: Systems and methods are described to perform wireless communication. The device includes a pre-distortion circuit configured to pre-distort an input signal based on a parameter set including a plurality of coefficients and generate a pre-distorted signal, a power amplifier configured to amplify the pre-distorted signal and generate an output signal, and a parameter obtaining circuit configured to perform an iterative approximation operation based on the output signal and the pre-distorted signal, which change over time, according to an indirect training structure configured to minimize a difference between an intermediate signal obtained based on the output signal and the pre-distorted signal, and obtain the parameter set.

Abstract: A translation device, a test system, and a memory system are provided. The translation device includes plural first input/output (I/O) circuits that respectively transmit and receive first signals through plural pins based on a pulse amplitude modulation (PAM)-M mode, a second I/O circuit that transmits and receives a second signal through one or more pins based on a PAM-N mode, and a translation circuit that translates the first signals into the second signal and translates the second signal into the first signals. M and N are different integers of 2 or more.

Abstract: A radio frequency device has a multifunctional tuner that stores measurements of reflection coefficient parameter in a register. The radio frequency device also has a transceiver that has a transmitter. The transceiver may detect a transmitter signal from the transmitter to an antenna in an initial tuning state and then determine whether the transmitter signal is stable. In response to the transmitter signal being stable, the transceiver may measuring the reflection coefficient parameters at the multifunctional tuner. Furthermore, the radio frequency device has a baseband controller that has a memory to store instructions and a processor to execute the instructions. The instructions cause the processor to determine an antenna impedance based on the reflection coefficient parameters, and in response to determining that the antenna impedance is greater than or less than a threshold antenna impedance, iteratively tune the antenna using the multifunctional tuner.

Abstract: An antenna system includes: a radiating element; a feed coupled to the radiating element at a first point on the radiating element and configured to convey energy to the radiating element; and a radiation-adjustment device coupled to the radiating element at a second point, configured to alter a radiation characteristic of the radiating element, and including: coarse-adjustment elements; an integrated-circuit chip including: switches, each coupled to a respective one of the coarse-adjustment elements where the coarse-adjustment elements are disposed external to the integrated-circuit chip; and a fine-adjustment circuit; the antenna system further including a controller communicatively coupled to the switches and to the fine-adjustment circuit, the controller configured to alter the radiation characteristic of the radiating element by selectively causing one or more of the switches to couple one or more of the coarse-adjustment elements to the radiating element, and by adjusting a value of the fine-adjustment

Abstract: Disclosed is an electronic device that includes a transmission amplifier; an antenna; a circulator disposed between the transmission amplifier and the antenna; a communication module which is connected to the circulator and which is for checking a signal received through the antenna; and a processor. The processor may be set to check the signal through the communication module and adjust the frequency characteristics of the antenna based at least in part on a determination that the signal is a signal reflected from the antenna.

Abstract: Systems, methods, and instrumentalities are disclosed for priority handling for ProSe Communications. A relay wireless transmit/receive unit (WTRU) may act as a relay between the network and the remote WTRU. The relay WTRU may receive a temporary mobile group identity (TMGI) request message from a remote WTRU. The TMGI request message may include a TMGI, a ProSe per packet priority level associated with the TMGI, etc. The relay WTRU may receive an evolved multimedia broadcast multicast service (eMBMS) data packet from a network. The eMBMS may be associated with the TMGI. The relay WTRU may apply the received ProSe per packet priority level associated with the TMGI to the received eMBMS data packet. The relay WTRU may relay the eMBMS data packet to the remote WTRU based on the ProSe per packet priority level. The relay WTRU may forward the eMBMS data packet to the remote WTRU via a PC5 interface.

Abstract: Apparatus and methods for vector modulator phase shifters are provided. In certain embodiments, a phase shifter includes a quadrature filter that filters a differential input signal to generate a differential in-phase (I) voltage and a differential quadrature-phase (Q) voltage, an in-phase variable gain amplifier (I-VGA) that amplifies the differential I voltage to generate a differential I current, a quadrature-phase variable gain amplifier (Q-VGA) that amplifies the differential Q voltage to generate a differential Q current, and a current mode combiner that combines the differential I voltage and the differential Q voltage to generate a differential output signal. A phase difference between the differential output signal and the differential input signal is controlled by gain settings of the I-VGA and the Q-VGA.

Abstract: A matching circuit includes first and second ports, an autotransformer, and first and second capacitors. The autotransformer includes a first terminal coupled to a first port, a second terminal coupled to a second port, and a common terminal coupled to a reference potential, and includes a series parasitic inductor and a parallel parasitic inductor. The first capacitor is coupled in shunt to the second terminal, and defines a low pass filter together with the series parasitic inductor. The second capacitor is coupled in series between the first port and the first terminal, and defines a high pass filter together with the parallel parasitic inductor.