Abstract: A communication circuit includes a first transfer circuit that includes a first transmitter circuit, and a second transfer circuit that includes a second transmitter circuit that can transmit a signal simultaneously with the first transmitter circuit. When a difference between requested power and scheduled power is greater than a predetermined value, the second transmitter circuit is configured to change transmission power of the second transmitter circuit to adjust the difference to a value smaller than the predetermined value, the requested power being requested transmission power, the scheduled power being transmission power to be transmitted based on the requested power.

Abstract: A wireless communication device for a human-powered vehicle comprises a wireless communicator and a controller. The wireless communicator is configured to wirelessly transmit a connection demand signal to establish a wireless connection between the wireless communicator and an additional wireless communicator. The controller is configured to control the wireless communicator to wirelessly transmit the connection demand signal at first frequency for a first period. The controller is configured to control the wireless communicator to wirelessly transmit the connection demand signal at second frequency which is different from the first frequency after a passage of the first period.

Abstract: In a measurement device 1, a reception sensitivity test control unit 18 includes test condition setting means 18b for setting a predetermined error tolerance level EL, throughput measurement means 18c for measuring a throughput related to reception capacity of the mobile terminal for each transmission and reception, output level setting means 18d for setting an output level of the test signal to be different from a previous output level according to a comparison result between a measurement result of the throughput and a predetermined threshold value set in advance, and measurement result output means 18e for continuing the transmission and reception in a case where a fluctuation range with respect to the previous output level exceeds the error tolerance level, and outputting a test result in a case where the fluctuation range with respect to the previous output level is in a range of the error tolerance level.

Abstract: Disclosed is an atmospheric information network comprised of a group of low earth orbit satellite-based sensors providing global coverage of the earth, together with one or more ground-based sensor networks, together with one or more mobile sensor networks, all operating to collect near-real-time or real-time data, together with data gathering from other governmental and commercial atmospheric data sources, together with software algorithms and processes for data reduction, data analysis, correlation of information, data fusion, modeling, reporting of near-real-time or real-time atmospheric conditions of air pollution and wind, and prediction of future atmospheric conditions of air pollution and wind. Such information is presented in geospatial and infographic formats on computer or mobile device displays, or electronic billboards.

Abstract: A system for monitoring operational status and detecting faults in a satellite system is disclosed. The system may include a processor and a memory storing instructions, which when executed by the processor, cause the processor to select, from a plurality of terminals, a subset of terminals to perform system operation tests. The processor may select the subset of terminals using at least one of a semi-static pre-qualification technique and a dynamic pre-qualification technique. The processor may also perform system operation tests using the selected subset of terminals. The processor may further report results from the system operation test using the selected subset of terminals. In some examples, the processor may also determine potential system operation issues based on the results of the system operation tests, generate an alarm or notification based on the determination of potential system operation issues, and/or abort testing or delay testing to a future testing cycle.

Abstract: In response to a command from the control PC 4, the first mobile terminal test apparatus 2 compresses data of test signals including a first test signal and a second test signal which are generated and encrypted, and adds a restoration parameter to a header of the compressed data. The second mobile terminal test apparatus 3 acquires the restoration parameter-added compressed data at the second port 3a via the cable 5 from the first port 2a, and restores and encrypts the data of test signals before encryption, based on the restoration parameters. Under the control of the control PC 4, the first mobile terminal test apparatus 2 outputs the data of the first test signal to the device under test W, and the second mobile terminal test apparatus 3 outputs the data of the second test signal to the device under test W.

Abstract: A wearable data storage and transmission device and related systems that collect and store sensor data from sensors worn by a user. The device components can include a processor, battery, data storage media, NFC components, Bluetooth components, Wi-Fi components, and wired communications components. The device can remain powered down, powering up periodically to collect sensor data using low energy methods and/or in response to receiving a signal (e.g., NFC, power, Bluetooth, etc.) from an external device that causes the device to power up its components and make sensor data available to the external device. The collected sensor data may be encoded, compressed, stored, and/or exchanged in one or more structured records using various methods to improve the information storage capabilities of the device, including using the disclosed QR coding methods.

Abstract: Provided are an electronic device for determining failure of a signal path and a component, and a method for operating the electronic device according to various embodiments. The electronic device comprises: at least one connection part for connection to an external device; a first signal path including an amplifier for amplifying a signal transmitted to the outside of the electronic device; a second signal path for obtaining another signal from the outside of the electronic device; an antenna port electrically connected to the first signal path and the second signal path through a filter circuit; and a communication module, wherein the communication module may be configured to transmit a transmission signal through the first signal path to the antenna port, obtain at least a part of the transmission signal through the second signal path, and determine whether the electronic device is defective on the basis of the transmission signal and information associated with at least a part of the transmission signal.

Abstract: A method for measuring modulated radio frequency (RF) signals from a device under test (DUT) includes inputting a test RF signal to the DUT, where the test RF signal is modulated with a repetitive complex waveform and a pulsed waveform, the repetitive complex waveform including multiple RF tones with an RF tone spacing and an RF repetition period, where a pulse width of the pulsed waveform is less than the RF repetition period; acquiring an output RF signal from the DUT responsive to the input test RF signal; down converting the output RF signal to an intermediate frequency (IF) signal; sampling the IF signal using an analog to digital converter (ADC) having an ADC clock frequency; measuring ADC samples of the IF signal; and reconstructing the test RF signal modulated with the repetitive complex waveform using the measured ADC samples.

Abstract: In a measurement device, a reception sensitivity test control unit includes drop determination means for determining whether or not a measured throughput is in a dropped state to a preset proportion in a steep drop region in which the throughput drops steeply, and output level setting means 18e for performing a setting process of setting an output level of the test signal to be different from a previous output level according to a comparison result indicating whether a throughput measurement result exceeds a predetermined threshold value and a determination result indicating whether the measured throughput is in the dropped state by the drop determination means, the setting process including a process of performing level down or level up on the output level of the test signal with respect to the previous output level in units of an error tolerance level EL when it is determined to be the dropped state.

Abstract: Techniques for controlling communication amongst a group of vehicles include determining whether a cellular network is unavailable or a user input indicative of a switchover request has been received, when the cellular network is available, controlling a cellular network transceiver to share information between the vehicle and one or more other vehicles of the group of vehicles via the cellular network, and when the cellular network is unavailable or in response to receiving the user input indicative of the switchover request, controlling a low Earth orbit (LEO) satellite network transceiver to share information between the vehicle and the one or more other vehicles of the group of vehicles via an LEO satellite network and not via the cellular network.

Abstract: A method of selecting a path for transmitting a maximum power from a base station to a terminal includes simplifying a plurality of structures in an area by using OBBs, the area being an area in which beam search is to be performed; forming the plurality of simplified structures into a tree structure for ray tracing; performing the ray tracing by applying a ray tracing relation tree reduction (RRTR) algorithm for reducing an amount of computation of a GPU to the tree structure; and applying a linear regression (LR) algorithm for calculating the maximum power to be transmitted from the base station to the terminal based on a result of the ray tracing.

Abstract: Techniques for automatically combining devices into a single group of devices, and splitting devices into multiple groups of devices are described. A machine learning model may process device profile data, associated with devices registered to two different users, and determine the devices should be combined into a single group of devices. Such enables a user to control each of the devices, of the two different users, but providing user inputs to a single device of the group. The machine learning model may also process device profile data, associated with devices registered to a single user, and determine the devices should be split into two or more groups of devices. Such may decrease the likelihood that a system may inadvertently control a device not intended by a user.

Abstract: The present teachings include a method and computing apparatus for triggering synchronization of a satellite modem to a carrier frequency of a beam of a satellite, retrieving ephemeris information for the satellite and beam configuration information for the beam, calculating a velocity of the satellite per the ephemeris information, and adjusting the carrier frequency of the satellite modem when communicating via the beam to compensate for a doppler offset induced in the carrier frequency by the velocity. In the method, the satellite has a satellite type selected from a Geosynchronous Earth Orbit (GEO), Medium Earth Orbit (MEO) or Low Earth Orbit (LEO) type of satellite, and the satellite type is different than a satellite type of an immediately preceding synchronization.

Abstract: A method of transmitting system information, a terminal and a network-side equipment are provided. The method includes: receiving, by a terminal, an System Information (SI) change notification transmitted by a first network-side equipment; and receiving, by the terminal, SI transmitted by the first network-side equipment and corresponding to the SI change notification.

Abstract: Provided in an embodiment of the present invention are a wireless communication method and device capable of minimizing self-interference at a terminal device and improving communication performance. The method comprises: determining a magnitude of self-interference at a terminal device generated in a first uplink frequency band and a first downlink frequency band over which the terminal device performs communication with a network device; and transmitting a first message to the network device, the first message indicating the magnitude of the self-interference at the terminal device generated in the first UL frequency band and the first DL frequency band.

Abstract: A system for identifying faults in a radio frequency device under test, the system including a passive intermodulation test module, configured to perform passive intermodulation testing of the device under test on at least one test port; and an in-line S-parameter test set, coupled to the passive intermodulation test module and intermediate the passive intermodulation test module and at least one test port, and configured to perform wideband S-parameter testing of the device under test on the at least one test port.

Abstract: An electronic device includes a plurality of antenna modules, a first communication circuit communicating in a first communication scheme via at least one antenna module The electronic device also includes a second communication circuit communicating in a second communication scheme. The electronic device further includes a temperature sensor, a processor and a memory storing instructions. The instructions are configured to, when executed, enable the at least one processor to detect a temperature associated with the antenna module or the first communication circuit while communicating via the first communication circuit, identify a first control step among a plurality of control steps based on an operation type of the electronic device and the at least one temperature detected, and limit at least some operations on at least one of the at least one antenna module or the first communication circuit, corresponding to the identified first control step.

Abstract: A method of determining the bit error ratio (BER) of a device under test (DUT) includes transmitting a first signal of an original test bit pattern over a first channel to a receiver of the DUT, and forward error correction (FEC) encoding the original test bit pattern of the first signal transmitted to the receiver of the DUT in a loopback mode of the DUT to generate an FEC encoded test bit pattern. The method further includes transmitting a second signal of the FEC encoded test bit pattern from a transmitter of the DUT over a second channel, and FEC decoding the FEC encoded test bit pattern of the second signal to obtain a decoded test bit pattern and comparing the decoded test bit pattern with the original test bit pattern to determine a BER of the DUT.

Abstract: A calibration device of an array antenna is for a transmission means including a plurality of antenna elements and transmission signal processing systems corresponding to the plurality of antenna elements, in which an antenna element transmission signal is calibrated for amplitude and phase differences and a time difference for each of the antenna elements on the basis of a transmission signal calibrating value, the transmission means being for generating a plurality of transmission radio waves applied with amplitude and phase differences and a time difference corresponding to each of the plurality of antenna elements and emitting the transmission radio waves from the respective antenna elements, the calibration device including: a multicarrier calibration signal generating means for generating a plurality of calibration signals based on, in correspondence, a plurality of subcarriers including a first frequency unit of a subcarrier to which a subcarrier symbol is assigned and a second frequency unit not assig