System and method for measuring path loss of a conductive radio frequency (RF) signal path used in testing a RF data signal transceiver device under test (DUT) with a RF vector signal transceiver. A path loss measurement may be performed by initially leaving an open connection at the RF signal path end normally connected to the DUT during DUT testing. Sourcing the RF test signal with the RF vector signal transceiver at multiple test frequencies avoids need for additional testing with shorted and loaded connections at the RF signal path end.

A mechanism for identifying a low performing radio branch at a radio transceiver device. A method is performed by the radio transceiver device that comprises transmitting a reference signal for at least some of the N radio branches in a respective test period. The reference signal in each test period is transmitted according to a test configuration that specifies that during each test period the reference signal is mapped to only one of the N radio branches such that in test period k, where k=1, . . . , N, the reference signal is only transmitted from radio branch k. The method comprises receiving at least one report from another radio transceiver device relating to measurements made by this so-called another radio transceiver device on the reference signal transmitted for these at least some of the N radio branches to identify which of the N radio branches is the low performing one.

The present disclosure relates to a signal receiver and a detection system. The signal receiver includes a housing and a handle. The housing includes a body and a protrusion. The body includes a first face and a second face disposed opposite each other. The protrusion is connected to the body and protrudes relative to the first face along a direction away from the second face. The handle is arranged on the first face.

A wireless charging apparatus of a wireless charging system obtains, in a charging period, channel information of a transmission channel and a waveform parameter used to indicate a waveform of an electromagnetic wave signal; generates a target electromagnetic wave signal based on the channel information and the waveform parameter; and sends the target electromagnetic wave signal to a to-be-charged device through the transmission channel. The channel information includes signal attenuation and a transmission delay that are of an electromagnetic wave signal transmitted through the transmission channel. The to-be-charged device converts the received target electromagnetic wave signal into a direct current signal, and performs charging based on the direct current signal. The target electromagnetic wave signal determined by the wireless charging apparatus can adapt to channel transmission.

A test and measurement system includes a machine learning system, a test and measurement device including a port configured to connect the test and measurement device to a device under test (DUT), and one or more processors, configured to execute code that causes the one or more processors to: acquire a waveform from the device under test (DUT),transform the waveform into a composite waveform image, and send the composite waveform image to the machine learning system to obtain a bit error ratio (BER) value for the DUT. A method of determining a bit error ratio for a device under test (DUT), includes acquiring one or more waveforms from the DUT, transforming the one or more waveforms into a composite waveform image, and sending the composite waveform image to a machine learning system to obtain a bit error ratio (BER) value for the DUT.

A wireless microphone system comprises system equipment (for example, rack-mounted equipment including receivers/transceivers, distribution amplifier), one or more transmission line accessories, and a transmission line network connecting the accessories with the system equipment. The transmission line accessory compensates for downlink RF losses on transmission lines between accessories and between an accessory and system equipment. Compensation parameters for the transmission line accessory is determined by the system equipment by generating an uplink RF test signal by an RF source at the system equipment. The RF source may be varied over a plurality of frequencies to determine the compensation parameters over the plurality of frequencies. The system equipment subsequently instructs the transmission line accessory to configure an adjustable RF gain circuit (and also possibly a compensation filter) accordingly. The wireless microphone system may also discover accessories on the transmission line network to facilitate installation and maintenance.

A measurement device for measuring performance of at least one antenna system in a first frequency band and in a second frequency band. The measurement device including an outer chamber having inwardly radio frequency reflective walls configured to enclose the antenna system, an inner chamber deployable inside the outer chamber, the inner chamber having radio frequency absorptive walls configured to enclose the antenna system, a first test antenna arrangement arranged inside the outer chamber and configured for a measurement operation in the first frequency band, and a second test antenna arrangement arranged inside the inner chamber and configured for a measurement operation in the second frequency band, thereby enabling measuring performance of the antenna system in a reflective radio frequency environment by the first test antenna arrangement and measuring performance in an essentially anechoic radio frequency environment by the second test antenna arrangement.

There is herein provided a method for measuring the GOSNR that can be implemented using commercial-grade transceivers and which accounts for linear optical impairments (e.g. PMD, PDL and CD) and transceiver intrinsic impairments. The method may be implemented using an Optical Spectrum Analyzer (OSA) and either the system transceivers or other commercial-grade transceivers. The proposed measurement method is based on mixed optical and electronic technologies, using an OSA and a transceiver pair. By measuring a signal quality metric Q.sub.m and the OSNR under varied power and ASE noise conditions, a constant value R.sub.BW that relates the GOSNR to the signal quality metric Q.sub.m is derived. The GOSNR is then obtained from these results.

The technologies described herein are generally directed to facilitate allocating resources to zones for IOT equipment in a fifth generation (5G) network or other next generation networks. An example method discussed herein includes identifying, by carrier allocation equipment, carrier transmission information corresponding to transmission of a first carrier signal configured to support Internet of things equipment. The method can further comprise analyzing, by the carrier allocation equipment, the carrier transmission information to determine coverage information corresponding to a potential for coverage, by the first carrier signal, of an Internet of things equipment support zone corresponding to a geographic area. The method can further include, based on the coverage information, facilitating configuring transmission parameter information, representative of a transmission parameter applicable to the coverage of the Internet of things equipment support zone by the first carrier signal.

A method for determining a beam correspondence parameter of a device under test includes arranging the device under test within a measurement environment to allow an exchange of a wireless signal with the device under test. The method generating a first beam with the measurement environment for the exchange of the wireless signaland causing causing the DUT to generate, by using an antenna arrangement of the DUT, a second beam, to form a beam pair with the first beam, the beam pair including a TX beam and an RX beam and to generate a third beam corresponding to the second beam. The method includes determining the beam correspondence parameter for the beam pair using characterizing the second beam and a measurement characterizing the third beam.