Abstract: A mixer includes a load portion connected between an input terminal of a first power voltage and an output terminal of the radio frequency transmit signal and configured to adjust a magnitude of the radio frequency transmit signal, a first switching unit connected to an output terminal of the radio frequency transmit signal, and configured to perform a first switching operation in response to a plurality of local oscillation signals, and a second switching unit connected between the first switching unit and an input terminal of a second power voltage, lower than the first power voltage, and configured to perform a second switching operation in response to a plurality of baseband signals, the plurality of local oscillation signals include an I+ baseband signal, an I? baseband signal, a Q+ baseband signal, and a Q? baseband signal, and the second switching unit includes a first branch performing a switching operation under control of the I+ baseband signal and the Q+ baseband signal, a second branch performing

Abstract: The present disclosure relates to a method of estimating a transmission direction of a transmitter. The method comprises: performing a first measurement by means of a measurement system, thereby obtaining a first measurement value of a first transmitter; performing a second measurement by means of the measurement system, thereby obtaining a second measurement value of a second transmitter; obtaining position information of the first transmitter and the second transmitter; determining a position of the measurement system; and taking the first measurement value, the second measurement value, the position information as well as the position of the measurement system into account in order to estimate the transmission direction of the first transmitter. In addition, a system for estimating a transmission direction of a transmitter is described.

Abstract: Embodiments of the present invention disclose a propagation path search method. In one embodiment, the method includes: defining a target three-dimensional object, where the target three-dimensional object is configured to describe full space; setting a signal transmission point in internal space of the target three-dimensional object to perform initial beam modeling of a signal point source, where the signal transmission point is used to transmit an initial beam; tracking the initial beam to determine a propagation manner generated by the initial beam in the three-dimensional object; and determining that a path corresponding to a target beam is an effective path when the target beam reaches a signal receiving point, where the target beam is included in the initial beam, or is obtained after the initial beam is split or changed.

Abstract: Methods, apparatus and systems for providing automatic assistance based on wireless monitoring are described. In one example, a described automatic assistant system comprises: a transmitter, a receiver, a processor, and an assistant device. The transmitter is configured for transmitting a first wireless signal through a wireless multipath channel of a venue. The receiver is configured for receiving a second wireless signal through the wireless multipath channel. The second wireless signal differs from the first wireless signal due to the wireless multipath channel that is impacted by a motion of an object in the venue. The processor is configured for: obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the second wireless signal, and monitoring the motion of the object in the venue based on the TSCI. The assistant device is configured for generating an assistance with respect to the object in the venue based on the monitoring.

Abstract: Systems and methods can include a transponder configured to communicate wirelessly with a receiver and sensor module (RSM), wireless communicate with a high-speed network, and radio-frequency (RF) powering of RSM. The high-speed network can include a wired network such as USB or Ethernet, or wireless network such as a WiFi or cellular network. Additionally or alternatively, an antenna module can be configured to transmit radio-frequency (RF) power to a receiver configured to monitor a condition of a machine.

Abstract: A radio-frequency signal sending/receiving circuit includes a low-noise amplifier electrically connected to a first terminal, a first switch electrically connected to the input terminal of the low-noise amplifier, a band pass filter electrically connected at one end to the other end of the first switch and at the other end to a first antenna via a fourth terminal, a power amplifier electrically connected to a second terminal, a second switch electrically connected at one end to the output terminal of the power amplifier and at the other end to the band pass filter, a third switch electrically connected at one end to the output terminal of the power amplifier and at the other end to a fifth terminal, and a fourth switch electrically connected at one end to a third terminal and at the other end to the fifth terminal.

Abstract: An electronic device is provided to include a user interface, a communication circuitry that supports Bluetooth (BT) communication and store a first BT address, a processor operatively connected with the user interface and the communication circuitry, and a memory operatively connected with the processor.

Abstract: An electronic device includes a first battery; a coil; a communication circuit; a display; a memory; and at least one processor operably coupled to the first battery, the coil, the communication circuit, the display, and the memory.

Abstract: To provide a technique for suppressing interference caused by inter-modulation distortion in dual connectivity between a plurality of radio communication systems using different RATs. An aspect of the present invention relates to user equipment including an interference indication generator that generates an interference indication including interfered carrier information that indicates a serving carrier that receives intra-device interference; and a transmitter-receiver that transmits the interference indication to a base station.

Abstract: A radio receiver includes a local oscillator arrangement and a controller. The local oscillator arrangement is arranged to provide a signal for down-conversion of radio frequency signal to an intermediate frequency or a baseband frequency in the radio receiver, and the local oscillator arrangement is capable of selectably providing multiple frequency generation qualities. The controller is arranged to estimate a tolerable frequency generation quality for the current operation of the radio receiver or determine whether the current operation of the radio receiver is satisfactory in sense of a currently provided frequency generation quality, and based on the estimation or determination adjust frequency generation quality of the local oscillator arrangement by selecting one of the multiple frequency generation qualities. A radio arrangement, a method and a computer program are also disclosed.

Abstract: Embodiments of channel parameters consistency calibration methods in multi-channel phased array systems are disclosed. The method comprises a reference channel calibration step and a calibration step for other channels to be calibrated. The reference channel calibration step comprises selecting one channel as a reference channel and performing a full state calibration on the reference channel to generate full state control data set S(A). Parameters to be calibrated in the calibration step of the uncalibrated channel may be a phase shift amount or an attenuation amount. The calibration step for the uncalibrated channel comprises a calibration under at least one specified parameter group. Compared with the conventional calibration methods, the present calibration method greatly shortens the calibration time, reduces the required data storage capacity, thereby improves efficiency for completing the consistence calibration of the parameters for multi-channel phased array systems.

Abstract: Methods and systems for outdoor advertising optimization and/or adaptive outdoor advertising are presented. One or more node signal receivers receive signals emitted by wireless network that are affected by physical phenomena such as reflections and scattering in the surrounding area. The received signals are processed to provide detection and tracking information regarding objects within a target volume. This information can then be employed to determine the optimal placement location or the optimal route for advertising platforms, and/or to select one or more advertisements on outdoor advertising platforms.

Abstract: According to an aspect of the present invention, a data receiving apparatus includes a receiver configured to receive a one-way communication packet transmitted from a data transmitting apparatus; a calculator configured to calculate a reception signal strength of the packet at the receiver; a comparison unit configured to compare the calculated reception signal strength with a threshold value; a generation unit configured to generate assistance information relating to transmission power of the data transmitting apparatus if the reception signal strength exceeds a threshold value as a result of the comparison; and an output unit configured to output the assistance information.

Abstract: A terminal device includes a housing, including a first, second and third conductive side frames, two ends of the first side frame being connected with the second and third side frames respectively and the second and third conductive side frames being arranged opposite; a gap formed in the first conductive side frame; a feed point positioned between the second and third conductive side frames, arranged on a bearing plate and configured to input or output an electric signal; a first signal connection line connected with the feed point and first conductive side frame respectively; and a first grounding point positioned on the second or third conductive side frame, wherein the first signal connection line, the first conductive side frame between the feed point and first grounding point and the conductive side frame where the first grounding point is located transmit and receive a first wireless signal together.

Abstract: A vibration alerting mobile terminal configured to adjust an amplitude parameter and a frequency parameter of a vibration alerting mode, to implement diverse vibration alerting modes to meet vibration requirements of the mobile terminal in different environments. The terminal provides for: displaying a first interface, wherein the first interface includes an amplitude adjustment control, a frequency adjustment control, and a vibration mode adjustment control; responding to an adjustment operation for at least one of the amplitude adjustment control, the frequency adjustment control, and the vibration mode adjustment control; generating a first vibration alerting mode; and alerting a user according to the first vibration alerting mode.

Abstract: Disclosed herein is a method and apparatus for selecting an antenna for beam measurement in which a terminal and a base station can communicate with each other in a 5th generation (5G) communication environment by executing an embedded artificial intelligence (AI) algorithm and/or a machine learning algorithm to perform signal processing. The method for selecting an antenna according to an embodiment of the present disclosure can include transmitting, to a base station, a report indicating that an antenna selection function for beam measurement is provided, receiving resource allocation information for beam measurement corresponding to the report from the base station, and performing, in response to a change in a beam direction caused by rotation of a terminal, beam tracking, based on commencement of a beam measurement period included in the resource allocation information for beam measurement.

Abstract: This disclosure relates to techniques for opportunistically depowering receiver chains of a wireless device. Based on control information, a device may determine whether the current number of active receiver chains can be reduced while maintaining a target achievable code rate for a period of data reception associated with the control information. Additionally, the device may generate and use a lookup table to determine whether to depower receiver chains, and which receiver chains to depower.

Abstract: A communication system is a communication system provided in a mobile body and including an acquirer configured to acquire a destination of the mobile body, and a communicator configured to communicate with a communication device outside the mobile body using an antenna, in which the communicator is configured to increase directivity of the antenna in a direction from a position of the mobile body to the destination when the destination is acquired by the acquirer.

Abstract: Aspects of this disclosure relate to a cascaded filter circuit that includes a hybrid acoustic LC filter, a non-acoustic LC filter, and a switch configured to selectively couple the hybrid acoustic LC filter and the non-acoustic LC filter. The hybrid acoustic filter can filter a radio frequency signal. The hybrid acoustic LC filter can include an acoustic resonator, an inductor, and a capacitor. The non-acoustic LC filter includes an LC circuit. Related multiplexers, wireless communication devices, and methods are disclosed.

Abstract: Disclosed is a self-portrait photographing device for a portable mobile communication terminal, including: a self-camera module which is installed within a screen area of a display panel, through which an image is output, and captures an image of a subject through a front surface of the display panel; and a controller configured to control operations of the self-camera module and the display panel.