Abstract: According to some embodiments, a tester tests one or more DUTs by utilizing one or more respective reference devices. The tester comprises one or more test sites and one or more test circuits operatively coupled to each of the test sites. Each test site is configured to: hold a reference device and a DUT, transmit a transmitted electromagnetic RF signal including a test data pattern to the DUT, and receive a received electromagnetic RF signal emitted from the DUT. The test circuits are configured to: receive a first electrical signal converted from the received electromagnetic RF signal, extract first data from the first electrical signal, determine a first error rate between the test data pattern and the first data, and generate a test result on the basis of the first error rate.

Abstract: The object is to simplify the configuration of a filter in a reception apparatus. The reception apparatus includes a filter. The filter provided in the reception apparatus selects a signal transmission characteristic that is one of a band stop characteristic or a low pass characteristic. Further, selection of the signal transmission characteristic in the filter provided in the reception apparatus is performed in response to a desired signal and an interference signal. In the filter provided in the reception apparatus, passage of the desired signal and attenuation of the interference signal based on the selected signal transmission characteristic are executed.

Abstract: A method of selecting a codebook is disclosed. The method is performed in a network node and includes: determining whether to use single-user multiple-input-multiple output, SU-MIMO, or multi-user multiple-input-multiple output, MU-MIMO, in a cell (C1) controlled by the network node, and selecting, based on the determining, a first codebook or a second codebook for use in communication with a communication device within the cell (C1). The first codebook is configured for SU-MIMO communication and the second codebook is configured for MU-MIMO communication. A network node, computer program and computer program product are also disclosed.

Abstract: Disclosed herein are configurations and devices for amplifying radio-frequency signals. The devices and configurations include using a wide-band or tunable downstream amplifier to amplify signals in a downstream or back-end module. The signals are first filtered and amplified by an upstream or front-end module that receives a diversity signal from a diversity antenna.

Abstract: A base station includes a selection unit configured to select a second beam appropriate for communication with a terminal apparatus on a basis of reception results of a plurality of second reference signals transmitted or received using a plurality of the second beams having irradiation ranges obtained by subdividing an irradiation range of a first beam which is appropriate for communication with the terminal apparatus and which is selected on a basis of reception results of a plurality of first reference signals transmitted using a plurality of the first beams which are formed by a plurality of antennas and which are set in advance; and a notification unit configured to notify the terminal apparatus of information indicating arrangement relationship between respective pluralities of first and second resources corresponding to pluralities of the first and second beams for the first and second reference signals.

Abstract: Disclosed is a 5G or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4G communication system such as LTE.

Abstract: The wireless power receiver includes at least one wire of a sound-producing device. The at least one wire configured for both conveying sound signals or securing at least part of the sound-producing device to a user, and receiving power waves. The wireless power receiver also includes power harvesting circuitry coupled with the at least one wire and a power source of an electronic device, like a battery. The power harvesting circuitry is configured to isolate the received power waves from the conveyed sound signals, convert the received power waves to usable energy, and provide the usable energy to the power source of the electronic device.

Abstract: A wireless device includes first and second analog radio modules, first and second medium access control modules configured to control access to a digital network via the first and second analog radio modules, respectively, first and second baseband modules configured to convert between analog signals at the first and second analog radio modules, respectively, and digital signals at the first and second medium access control module, respectively, and circuitry configured to selectably coordinate the first and second medium access control modules to create a single-channel configuration for use by the wireless device to transmit and receive radio signals over a wireless interface, by setting the first and second analog radio modules to operate on a common frequency, and by commonly controlling the first and second baseband modules to convert common packets between analog and digital signals transmitted to or received from respective medium access control modules.

Abstract: The present invention comprises a radio frequency modem with a precision timebase that utilizes a novel method of scheduling tasks to minimize average power draw of the system and extend life while running on limited power supplies. Additionally, the invention may optionally utilize the time base required for frequency hopping or spread spectrum communications as the basis for these higher powered tasks.

Abstract: Aspects of the subject disclosure may include, a system for receiving signals that convey data, obtaining energy from a telecommunication line of a telecommunications network where an AC or DC power signal is injected into the telecommunication line and where the energy is utilized by at least a subset of components of a waveguide system, and transmitting electromagnetic waves that convey the data where the electromagnetic waves propagate along the telecommunication line without requiring an electrical return path. Other embodiments are disclosed.

Abstract: Aspects of this disclosure relate to cooperative multiple-input multiple-output (MIMO) downlink scheduling. Features are described for scheduling transmissions within a MIMO network to efficiently allocate resources considering the needs and/or characteristics of devices served by the network. The downlink mode or active set may be scheduled based at least in part on the channel state information and additional network system information detected by or otherwise available to the scheduling device.

Abstract: Disclosed is a signaling circuit. A switch circuit generates an internal reference supply voltage and an internal lower supply voltage, from first and second power supply voltages. A transmit circuit drives a high bit from the first power supply voltage, and drives a low bit from the internal lower supply voltage. The second terminal of the data output is connected to the internal reference supply voltage.

Abstract: A circuit includes a voltage-controlled oscillator (VCO) and a frequency divider. The frequency divider input is coupled to the VCO output. The circuit further includes a phase-frequency detector (PFD). A control output of the PFD is coupled to the VCO. A first PFD input is coupled to a first frequency divider output, and a second PFD input is coupled to a second frequency divider output. The first frequency divider output is configured to provide a first frequency divider signal and the second frequency divider output is configured to provide a second frequency divider signal 90 degrees out of phase with respect to the first frequency divider signal. The PFD is configured to detect an occurrence of at least two edges of a signal on the data input while the second frequency divider signal is continuously logic high across the at least two edges.

Abstract: A Global Navigation Satellite System (GNSS) receiver demodulates code shift keying (CSK) data utilizing a binary search. The GNSS receiver receives a signal including a pseudorandom noise (PRN) code modulated by code shift keying (CSK) to represent a symbol (i.e., CSK modulated symbol). The GNSS receiver maintains a plurality of receiver codes each representing a different shift in chips to the PRN code. The GNSS receiver performs a linear combination of portions of the receiver codes. In an embodiment, the GNSS receiver compares correlation power level value for respective portions of the receiver codes to demodulate the CSK data. In a further embodiment, the GNSS receiver compares the correlation power level values for portions of receiver codes with power detection threshold values to demodulate the CSK data. In a further embodiment, the GNSS receiver utilizes signs of the correlation power level values to demodulate the CSK data.

Abstract: An information processing apparatus includes: a memory configured to store first system time; and a processor configured to: receive, from an information acquisition apparatus after the first system time is written in the memory, first information acquired by the information acquisition apparatus and first time information indicating acquisition time of the first information; receive, from the information acquisition apparatus after receiving the first information and the first time information, second information and second time information indicating acquisition time of the second information; converting, based on the first system time, reception time at which the first information and the first time information are received into second system time; convert, based on the second system time and the first time information, the second time information into third system time; attach the second system time to the first information; and attach the third system time to the second information.

Abstract: A Global Navigation Satellite System (GNSS) receiver demodulates code shift keying (CSK) data utilizing a binary search. The GNSS receiver receives a signal including a pseudorandom noise (PRN) code modulated by code shift keying (CSK) to represent a symbol (i.e., CSK modulated symbol). The GNSS receiver maintains a plurality of receiver codes each representing a different shift in chips to the PRN code. The GNSS receiver performs a linear combination of portions of the receiver codes. In an embodiment, the GNSS receiver compares correlation power level value for respective portions of the receiver codes to demodulate the CSK data. In a further embodiment, the GNSS receiver compares the correlation power level values for portions of receiver codes with power detection threshold values to demodulate the CSK data. In a further embodiment, the GNSS receiver utilizes signs of the correlation power level values to demodulate the CSK data.

Abstract: A method, device, and a computer program are provided to decode a signal received through a transmission channel in a communication system, the received signal being represented by a signal vector.

Abstract: Aspects of the subject disclosure may include, receiving a signal, and launching, according to the signal, an electromagnetic wave along a transmission medium, where the electromagnetic wave propagates along the transmission medium without requiring an electrical return path, and where the electromagnetic wave has a phase delay profile that is dependent on an azimuth angle about an axis of the transmission medium. Other embodiments are disclosed.

Abstract: There is provided mechanisms for obtaining channel conditions per antenna element, A method is performed by a wireless radio transceiver device comprising N antenna elements in an antenna array with analog beamforming and being configured to communicate using beams. The method comprises obtaining, for a stationary radio propagation channel, channel conditions for signals received by the wireless radio transceiver device in M beams, where M>1. The method comprises transforming the channel conditions for the M beams to channel conditions for the N antenna elements by using a relation based on beamforming weights that map the N antenna elements to the M beams.

Abstract: An information transmission method related to the field of communications technologies includes: generating an orthogonal frequency division multiplexing (OFDM) symbol, where the OFDM symbol includes a pi/2-BPSK modulated data signal and a pi/2-binary phase shift keying (BPSK) modulated phase tracking reference signal (PTRS); and sending the OFDM symbol. This method may be applied to an uplink single carrier transmission scenario or a downlink single carrier transmission scenario.