A universal transmit-receive (UTR) module for phased array systems comprises an antenna element shared for both transmitting and receiving; a transmit path that includes a transmit-path phase shifter, a driver, a switch-mode power amplifier (SMPA) that is configured to be driven by the driver, and a dynamic power supply (DPS) that generates and supplies a DPS voltage to the power supply port of the SMPA; and a receive path that includes a TX/RX switch that determines whether the receive path is electrically connected to or electrically isolated from the antenna element, a bandpass filter (BPF) that aligns with the intended receive frequency and serves to suppress reflected transmit signals and reverse signals, an adjustable-gain low-noise amplifier (LNA), and a receive-path phase shifter. The UTR module is specially designed for operation in phased array systems. The versatility and wideband agility of the UTR module allows a single phased array system to be designed that can be used for multiple purposes, such as, for example, both radar and communications applications.

There is provided with a radar unit that includes transmission/reception antennas, a holding unit that holds the transmission/reception antennas such that the transmission/reception antennas face the ground, a large spherical wheel that has an inside wall on which one end of the holding unit is fixed, three or more small spherical wheels that hold an upper half portion of the large spherical wheel such that the large spherical wheel is rollable, a movement amount sensor that detects a movement amount generated by rolling of the large spherical wheel, and a control unit that is connected to the radar unit and the movement amount sensor.

In a wireless local area network (LAN) system, a sensing session comprises a first burst and a second burst, wherein, in the first burst, a transmitting STA may transmit a first sounding signal to a first receiving STA and a second receiving STA. In the first burst, the transmitting STA may receive, from the first receiving STA, a first feedback frame comprising first channel information between the transmitting STA and the first receiving STA, and, from the second receiving STA, a second feedback frame comprising channel information between the transmitting STA and the second receiving STA. In the second burst, the transmitting STA may receive a second sounding signal from the first receiving STA. In the second burst, the transmitting STA may receive, from the second receiving STA, a third feedback frame comprising channel information between the first receiving STA and the second receiving STA.

An electronic device and a method for controlling the same are provided. The electronic device includes a communicator including circuitry, a first sensor configured to detect movement information of the electronic device, a memory including a first determination module configured to determine whether a user carries the electronic device and a second determination module configured to determine a detecting method for detecting a user location, and a processor configured to identify whether a user of the electronic device carries the electronic device based on the movement information of the electronic device obtained by the first sensor by using the first determination module, and determine a detecting method for detecting location information of the user according to whether the user carries the electronic device by using the second determination module.

Systems and methods for detecting and monitoring human breathing, respiration, and heart rate using statistics about the wireless channel between two or more connected devices. A user is monitored for identifying patterns in the user's behavior that may allow the system to alert a caregiver to deviations in the user behavior that may be indicative of a potential issue, such as depression. A presence may further detected in a sensing area through the detection of spectral components in the breathing frequency range of comprises user includes transforming phase difference between spatial streams and amplitude of the samples representing frequency response of the channel for any frequency value into frequency domain to perform frequency analysis. Statistical analysis may be performed on the frequency space provided by the transformation. Micro motions may also be detected by detecting presence in a sensing area through the detection of spectral components in the micro motion frequency range.

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for radio frequency (RF) sensing in the millimeter-wave frequency spectrum that can be performed over multiple phases. During a session setup phase, a radar initiator identifies one or more wireless stations (STAs) that are capable of radar ranging and sets up a radar measurement session that includes at least one of the identified STAs. During a measurement negotiation phase, the radar initiator performs a respective beamforming training operation with each STA and indicates, to each STA, one or more parameters associated with the radar measurement session. During a radar measurement phase, the radar initiator transmits radar setup information to, and receives ranging information from, each STA. In some aspects, the radar initiator may perform an object detection operation that indicates a location of an object associated with the ranging information received from each radar STA.

A resource determining method and apparatus, an electronic device, a storage medium, a program product, and a vehicle are provided, which are relate to interference listening and avoidance technologies of collaborative radars, and include: determining a first listening result of a first time-frequency resource set; when the first listening result meets a first congestion condition, reducing a time-frequency occupation ratio and/or transmit power of a first target detection signal to obtain a second target detection signal, wherein the first congestion condition includes: a congestion degree of any time-frequency resource in a second time-frequency resource set is greater than a first threshold, and the second time-frequency resource set is included in the first time-frequency resource set; and detecting a target based on the second target detection signal.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a sensing signal receiver may receive, from a sensing signal transmitter, sensing signals for passive object sensing in a plurality of beams; and transmit, to the sensing signal transmitter, feedback information that indicates an association of a set of beams, of the plurality of beams, for sensing signal transmission. Numerous other aspects are provided.

A ground map monitor method comprises obtaining positions of communication nodes in a communications network, selecting transmission and reception nodes from the communication nodes, and measuring bistatic signals between the transmission and reception nodes to determine nominal signal performance characteristics for the bistatic signals, including reflected signal time delays, frequency shifts, and power levels. The method further comprises monitoring the bistatic signals for changes to nominal signal performance characteristics. The method uses discriminators between the nominal signal performance characteristics and a current performance level of the bistatic signals, and compares the discriminators against performance thresholds, to determine whether current signal performance characteristics have varied from their nominal levels. An alert signal is broadcast that a section of a navigation map is not useable for navigation of a vehicle if changes in the current performance level of the bistatic signals exceeds the performance thresholds.

A method for real-time THz sensing using true time delay (TTD) is implemented by a base station and includes transmitting, by a transceiver that includes TDD elements and phase shifters configured in the transceiver, simultaneous frequency dependent (SFD) beams to scan an environment at a first granularity to detect a spatial cluster target. Each of the SFD beams corresponds to a different phase angle and different frequency. The method includes determining, among the SFD beams, a subset of beams that detected the spatial cluster target. The method includes beam switching, by the transceiver, using time division multiplexing (TDM) and a TDM bandwidth to scan a portion of the environment at phase angles corresponding to the subset of beams and at a second granularity finer than the first granularity. The method includes combining data received from the SFD beams, by multiple threads that concurrently process data received from the SFD beams.