Disclosed are a method and apparatus for determining a position of a V2X device in a wireless communication system according to various embodiments. Disclosed are a method and apparatus, the method comprising the steps of: receiving a first signal from a first road side unit (RSU) and a second signal from a second RSU through a first antenna and a second antenna distributed over a predetermined distance; measuring a first time difference that is a reception time difference for the first signal and a second time difference that is a reception time difference for the second signal between the first antenna and the second antenna; and determining the position of the V2X device on the basis of the first time difference and the second time difference, wherein the V2X device calculates a first hyperbola on the basis of the first time difference and a second hyperbola on the basis of the second time difference, determines a first offset on the basis of the predetermined distance and the first time difference, and determines a second offset on the basis of the predetermined distance and the second time difference, wherein the position of the V2X device is determined on the basis of an intersection point between the first hyperbola to which the first offset is applied and the second hyperbola to which the second offset is applied.

Disclosed are a method and apparatus for determining a position of a V2X device in a wireless communication system according to various embodiments. Disclosed are a method and apparatus, the method comprising the steps of: receiving a first signal from a first road side unit (RSU) and a second signal from a second RSU through a first antenna and a second antenna distributed over a predetermined distance; measuring a first time difference that is a reception time difference for the first signal and a second time difference that is a reception time difference for the second signal between the first antenna and the second antenna; and determining the position of the V2X device on the basis of the first time difference and the second time difference, wherein the V2X device calculates a first hyperbola on the basis of the first time difference and a second hyperbola on the basis of the second time difference, determines a first offset on the basis of the predetermined distance and the first time difference, and determines a second offset on the basis of the predetermined distance and the second time difference, wherein the position of the V2X device is determined on the basis of an intersection point between the first hyperbola to which the first offset is applied and the second hyperbola to which the second offset is applied.

There is described a ultra-wide band (UWB) communication device, comprising:

i) a UWB antenna, configured to receive a UWB signal from a further UWB communication device, and
ii) a control device, configured to
iia) determine an angle of arrival (β) based on the received UWB signal,
iib) determine a distance between the UWB communication device and the further UWB communication device, and thereby
iic) compensate for a distance determination disturbance using the determined angle of arrival (β).

Further, a UWB communication system and a method of determining a distance are described.

Presented herein are embodiments of signal detection and location finding directed to a “Signature Detector and Direction Finder” (SDDF) add-on module. The SDDF is an add-on module to any Signal Detection System (SDS) that detects, locates, and/or tracks any type(s) of Radio Frequency (RF) signals. Even though the presented embodiments can be used with any RF signal type, the preferred targets are Uncrewed Aerial Vehicles (UAV) or drones, and their controllers. A goal of the SDDF add-on module is to recognize the reported signal of interest and identify its direction. The machine-learning feature enables the system (i.e. SDDF add-on module with SDS) to be deployable in various environments with flexibility in choosing the antenna type(s). The Signature Detector component of the SDDF add-on module uniquely filters drone/controller signals, hence, more accurate direction estimation of the detected signal by SDDF add-on module.

Presented are intelligent electronic footwear and apparel with controller-automated features, methods for making/operating such footwear and apparel, and control systems for executing automated features of such footwear and apparel. A method for operating an intelligent electronic shoe (IES) includes receiving, e.g., via a controller through a wireless communications device from a GPS satellite service, location data of a user. The controller also receives, e.g., from a backend server-class computer or other remote computing node, location data for a target object or site, such as a virtual shoe hidden at a virtual spot. The controller retrieves or predicts path plan data including a derived route for traversing from the user's location to the target's location within a geographic area. The controller then transmits command signals to a navigation alert system mounted to the IES's shoe structure to output visual, audio, and/or tactile cues that guide the user along the derived route.

The present invention is aimed at making it possible to assess a radio wave intensity distribution widely covering areas and frequencies, and thereby making it possible to assess a distribution, widely covering areas and frequencies, of the quality of a communication function provided by a radio wave.

A radio wave intensity distribution assessment apparatus according to the present invention comprises: a radio wave station position detection unit that detects a position of a radio wave station on the basis of a geographic image having position information and of an image of the radio wave station; a radio wave station information integration unit that outputs radio wave station information based on the position of the radio wave station and radio wave station license information on the radio wave station; and a radio wave intensity distribution estimation unit that estimates and outputs a radio wave intensity distribution within a designated range on the basis of the radio wave station information and geographic information on the surroundings of the radio wave station.

The present invention is aimed at making it possible to assess a radio wave intensity distribution widely covering areas and frequencies, and thereby making it possible to assess a distribution, widely covering areas and frequencies, of the quality of a communication function provided by a radio wave.

A radio wave intensity distribution assessment apparatus according to the present invention comprises: a radio wave station position detection unit that detects a position of a radio wave station on the basis of a geographic image having position information and of an image of the radio wave station; a radio wave station information integration unit that outputs radio wave station information based on the position of the radio wave station and radio wave station license information on the radio wave station; and a radio wave intensity distribution estimation unit that estimates and outputs a radio wave intensity distribution within a designated range on the basis of the radio wave station information and geographic information on the surroundings of the radio wave station.

Systems and methods for determining an accurate location of a signal's source of transmission. The methods involve: demodulating a detected carrier signal modulated with a Pseudo Noise (“PN”) code sequence to obtain an original information-bearing signal therefrom; computing time delay offsets using correlations of PN code windows for each symbol of the original information-bearing signal; determining a high accuracy Time Of Arrival (“TOA”) of the detected carrier signal using the time delay offsets; and using the high accuracy TOA to determine an accurate location of the original information-bearing signal's source of transmission.

A system and bent-pipe transponder component for determining a location of an individual or object in three dimensional space. The system includes a transmitter configured to transmit a first wireless electromagnetic signal at a first frequency and at least one transponder that is configured to responsively emit a second wireless electromagnetic signal having a second frequency that is frequency-shifted from the first frequency. An included receiver detecting the first and second wireless electromagnetic signals is configured to provide an output of location information for the at least one transponder. A bent-pipe transponder component may include a receiving antenna, an emitting antenna, and a frequency shift stage comprising an oscillator and a first mixer, with the frequency stage mixing a received first wireless electromagnetic signal with the output of the oscillator via the first mixer to produce the emitted second wireless electromagnetic signal.

A system and bent-pipe transponder component for determining a location of an individual or object in three dimensional space. The system includes a transmitter configured to transmit a first wireless electromagnetic signal at a first frequency and at least one transponder that is configured to responsively emit a second wireless electromagnetic signal having a second frequency that is frequency-shifted from the first frequency. An included receiver detecting the first and second wireless electromagnetic signals is configured to provide an output of location information for the at least one transponder. A bent-pipe transponder component may include a receiving antenna, an emitting antenna, and a frequency shift stage comprising an oscillator and a first mixer, with the frequency stage mixing a received first wireless electromagnetic signal with the output of the oscillator via the first mixer to produce the emitted second wireless electromagnetic signal.