An electronic apparatus includes communication circuitry and processing circuitry. The communication circuitry receives first and second wireless signals from a first terminal when the electronic apparatus reaches first and second measurement points. The communication circuitry receives third and fourth wireless signals from a second terminal when the electronic apparatus reaches third and fourth measurement points. The processing circuitry estimates one or more first candidates of a position of the first terminal and one or more second candidates of a position of the second terminal. The processing circuitry specifies the position of the first terminal and the position of the second terminal.

Systems and methods for determining a physical location of a first Radio Frequency Identification (RFID) tag. The methods involve: analyzing timestamped tag read information acquired during multiple tag reads to determine a first physical location for the first RFID tag read by the mobile reader while moving through a facility; identifying second RFID tags from a plurality of RFID tags read by the mobile reader that are located in proximity to the first RFID tag and that are coupled to objects similar to an object to which the first RFID tag is coupled; selecting an RFID tag from the second RFID tags that has a first location confidence value associated therewith which is greater than second location confidence values associated with other RFID tags of the second RFID tags; and modifying the first physical location based on a second physical location of the RFID tag selected from the second RFID tags.

The present invention relates to a method to improve the precision of a position information of a roadside unit (RSU), the RSU at least comprising a data communication unit, a memory unit and a processor unit, wherein a saved RSU position is saved in the memory unit as position information of the RSU. Further, the present invention relates to a roadside unit (RSU), at least comprising a data communication unit, a memory unit and a processor unit. In addition, the present invention relates to a system to provide position information in an area, preferably in respect of an advanced driver assistant system (ADAS) and/or autonomous driving.

An antenna receiver has antenna elements that are arranged in an array and spaced apart from each other at a distance greater than one-half wavelength of the highest operating frequency of a signal that is to be detected by the antenna receiver. The antenna receiver has geolocation logic that uses the inter-element phase difference measurements to obtain a location of the signal source. The change in the inter-element phase differences enables the elements to be spaced apart at great distances, which is beneficial for the physical construction of the platform, as the elements may be easily placed at convenient locations for conformal aerodynamic properties.

Single antenna direction finding is performed by physically moving a device to different device positions. As the device is physically moved, signal processing hardware within the device is used to make a plurality of signal response measurements of a signal detected by a single antenna of the device. The signal emanates from an object. The plurality of signal response measurements are made by sampling signal response at a plurality of sample times. A means for 3-dimensional positioning makes a plurality of inertial measurements at the plurality of sample times. The plurality of signal response measurements and the plurality of inertial measurements are used to produce a virtual response array vector. The virtual response array vector is used to calculate a direction of arrival from the object to the device.

A system, devices, and methods include a player network hub and relay network hubs. The player network hub is configured to form a body area network with peripheral devices by communicating wirelessly according to a first wireless protocol and transmit location information according to a second wireless protocol different than the first wireless protocol. The relay network hubs are configured to form a wide area network with the player network hub and a master network hub by communicating, at least in part, according to the second wireless protocol, wherein the relay network hubs are configured to receive the location information from the player network hub and wherein at least one of the relay network hubs or the master network hub are configured to determine a location of the player network hub based on the location information.

A method for X2 interface communication is disclosed, comprising: at an X2 gateway for communicating with, and coupled to, a first and a second radio access network (RAN), receiving messages from the first RAN according to a first X2 protocol and mapping the received messages to a second X2 protocol for transmission to the second RAN; maintaining state of one of the first RAN or the second RAN at the X2 gateway; executing executable code received at an interpreter at the X2 gateway as part of the received messages; altering the maintained state based on the executed executable code; and receiving and decoding an initial X2 message from the first RAN; identifying specific strings in the initial X2 message; matching the identified specific strings in a database of stored scripts; and performing a transformation on the initial X2 message, the transformation being retrieved from the database for stored scripts, the stored scripts being transformations.

Systems, methods, and apparatus for location determination of an emitter using frequency-of-arrival (FOA) measured from a single moving platform are disclosed. In one or more embodiments, a disclosed system allows for location determination of stationary, pulsed radio frequency (RF) emitters from a moving platform by using coherent frequency of arrival (CFOA) Doppler history measurements. The term coherent is used to indicate that the process requires a RF-coherent pulse train, such as that generated by modern radar. In one or more embodiments, the disclosed system employs one of two disclosed CFOA measurement methods (Method 1: CFOA linear regression of phase (LRP), and Method 2: CFOA cross-correlated frequency spectra (CCFS)). The disclosed system also enables geo-discrimination (GeoD) of emitters at known locations, or alternatively geo-location of emitters at unknown locations.

This application describes methods and system for positioning pico remote radio units. Drive test information on a terminal side and drive test information on a network management system side are recorded when a drive test is performed, and pico remote radio unit position information and a pico remote radio unit identifier are automatically associated and bound based on the drive test information on the terminal side and the drive test information on the network management system side, to facilitate positioning of a pico remote radio unit, and to ensure efficient system operation and maintenance.

A system for housing a drone for locating a source in an electrical structure includes a plurality of drones capable of hovering in positions to form a virtual enclosure around an electrical structure and a server communicably coupled to the drones. The virtual enclosure is divided into a plurality of cells. The drone is configured to measure a plurality of time difference of arrival (TDOA) values from signals originating from the source; calculate a plurality of propagation times comprising a propagation time for a calibration signal that travels from a drone to each of the plurality of cells; and send the TDOA values and the propagation times to a server. The server is configured to receive the TDOA values and the propagation times from the plurality of drones; and determine a location of the source based on the plurality of TDOA values and the plurality of propagation times.