An embodiment of the disclosure provides an apparatus that include a communication module, a memory, a processor operatively connected to at least one of the communication module or the memory. The processor may be configured to perform UWB communication with a plurality of anchors included in a vehicle via the communication module according to a first scheme, to determine whether a distance to the vehicle falls within a predetermined distance by measuring the distance via the UWB communication, to determine whether a predetermined condition is satisfied if the distance falls within the predetermined distance, and if the predetermined condition is satisfied, to change the UWB communication scheme from the first scheme to a second scheme. Other embodiments are possible.

An example wireless audio electronic device includes a first antenna, a communication circuit, and a processor. The processor may be configured to receive a positioning signal from an external electronic device through the first antenna so as to obtain first positioning information; obtain, from a different audio device located in a case together with the wireless audio electronic device, second positioning information for the positioning signal received by the different wireless audio electronic device; determine an angle of arrival of the positioning signal based on the first positioning information, the second positioning information, and the distance between the wireless audio electronic device and the different wireless audio electronic device; and transmit a response signal including information of the angle of arrival to the external electronic device.

Systems and methods for Wi-Fi sensing using UL-OFDMA are provided. Wi-Fi sensing systems include sensing devices and sensing transmitters configured to communicate through radio-frequency signals. Initially, first channel resources are allocated to first expected transmissions from the sensing transmitters and first sensing trigger message to trigger first series of sensing transmissions from the sensing transmitters is transmitted. Further, a first series of sensing transmissions is received, and the first series of sensing measurements are generated. Thereafter, identification of feature of interest is obtained and a selection of sensing transmitters is determined. Second channel resources are allocated to second expected transmissions from the selection of sensing transmitters. A second sensing trigger message to trigger a second series of sensing transmissions from the selection of the sensing transmitters is provided. A series of sensing transmissions is received, and a second series of sensing measurements is generated based on the second series of sensing transmissions.

A cellular network system and method provided herein are directed to generating an area topographic map of a surrounding area of the cellular network system. The cellular network system comprises a transmitter, a receiver, memory, and one or more processors (processors) communicatively coupled to the transmitter, the receiver, and the memory. The memory stores computer-executable instructions that, when executed by the processors, perform certain operations. The transmitter transmits in a target direction a first signal, which is a communication signal intended for a user equipment (UE) and the receiver receives a second signal. The processors determine whether the second signal is a reflected signal associated with the first signal, determine topographic data associated with the surrounding area of the cellular network system in the target direction based at least in part on the second signal, and generate the area topographic map of the surrounding area based on the topographic data.

An electronic device is provided. The electronic device includes a communication circuit, a memory, and a processor operatively connected to the communication circuit and the memory, wherein the processor may be configured to transmit a first message for range measurement in a first range measurement period through the communication circuit, receive a second message including a first response time and transmitted by a first external electronic device through the communication circuit in response to the first message, receive a third message including a second response time and a third response time and transmitted by a second external electronic device through the communication circuit in response to the first message, and receive a fourth message including a fourth response time, a fifth response time, and a sixth response time and transmitted by a third external electronic device through the communication circuit in response to the first message.

Certain aspects provide a method for radar detection by an apparatus. The method including transmitting a radar waveform in transmission time intervals (TTIs) to perform detection of a target object. The method further includes varying the radar waveform across TTIs based on one or more radar transmission parameters.

Methods for detecting radar targets are provided. According to one exemplary embodiment, the method includes providing a digital radar signal having a sequence of signal segments. Each signal segment of the sequence is respectively associated with a chirp of a transmitted RF radar signal. The method further includes detecting one or more radar targets based on a first subsequence of successive signal segments of the sequence. For each detected radar target, a distance value and a velocity value are determined. If a group of radar targets having overlapping signal components has been detected, a respective spectral value is calculated for each radar target of the group of radar targets based on a second subsequence of the sequence of signal segments and further based on the velocity values ascertained for the group of radar targets.

The embodiments described herein provide ranging and location determination capabilities in RF-opaque environments, such as a jungle, that preclude the use of Global Positioning System (GPS) and/or laser ranging systems, utilizing transponders and Global Positioning System (GPS) receivers located on aerial vehicles. The aerial vehicles operate above the RF-opaque environment, and communicate with a ranging device within the RF-opaque environment on frequencies that propagate in the RF-opaque environment. The ranging device transmits RF signals to the transponders, which are received by the transponders and re-broadcasted back to the ranging device on a different frequency. The aerial vehicles also provide their coordinates to the ranging device using their GPS receivers. The ranging device uses information about the transmitted and received RF signals and the GPS coordinates of the aerial vehicles to calculate a perpendicular distance to a property line from the ranging device, and/or to calculate a coordinate location of the ranging device.

Contactless operation of a medical device, such as a hemodialysis (HD) or peritoneal dialysis (PD) device, is provided via a mobile pointing apparatus and a receiving arrangement associated with the medical device. The mobile pointing apparatus includes a signal emitter for emitting an optical or electromagnetic signal, and the receiving arrangement associated with the medical device determines a pointing target of the mobile pointing apparatus relative to the medical device based on the signal emitted by the mobile pointing apparatus and triggers a function of the device based on the pointing target of the mobile pointing apparatus.

Disclosed are techniques for scheduling uplink (UL) and downlink (DL) physical layer resources for a serving node and a user equipment (UE) for round trip time (RTT) and observed time difference of arrival (OTDOA) based positioning. In an aspect, a serving node and/or a network entity configure the UL and DL physical layer resources, and inform the UE. A network node transmits RTT measurement (RTTM) signal to the UE and receives RTT response (RTTR) signals from the UE. The network node measures the times the RTTM signals are transmitted and the times the RTTR signals are received. The UE provides to serving node processing times indicating a duration between the UE receiving the RTTM signals and the UE transmitting the RTTR signals. The RTTs are calculated from the times measured by the network node and the processing times provided by the UE.