The present invention discloses a system and a method for detecting, localizing and categorizing radio frequency (RF) emitting sources. In operation presence of one or more RF sources are determined. Further, movement in the detected one or more RF sources is detected based on at least presence of spread power in spatial harmonics and visibility phase measurement. The frequencies of the radio waves at which the movement of one or more RF sources is detected are identified. A localization antenna subsystem is tuned to the identified frequencies one at a time to localize and identify the RF sources. Furthermore, the RF source is classified as an airborne source or ground-based source using radio interferometry imaging. Finally, on determination that the moving RF source is airborne, the interferometric images are further processed to confirm the type of airborne source.

A method is provided. A notice is received from a mobile device indicating that typing within a texting application has occurred substantially simultaneously as walking has been detected. The notice includes a timestamp of when the typing and the detection of walking occurred. A position of the mobile device is triangulated for the timestamp, and a determination is made as to whether the typing and the detection of walking occurred within a predetermined target area using at least a portion of data calculated from the step of triangulating.

A method and an electronic device for ranging are provided. An ultra-wideband (UWB) signal is received from an external device through a first antenna. A communication state between the external device and the electronic device is identified using information about communication quality included in the UWB signal. A signal received through a second antenna is identified by decoding the received signal based on the identified communication state. A distance between the electronic device and the external device is determined based on whether the received signal is a low frequency (LF) signal.

An apparatus, method and computer program is described comprising: determining that a first mobile object requires positioning assistance based on one or more predetermined criteria, wherein the predetermined criteria includes whether one or more properties of a planned or predicted future position of the first mobile object have been identified as insufficient, or are predicted as being insufficient, for determining the position of the first mobile object with a required level of accuracy; and responsive to said determination, causing deployment of one or more movable devices (e.g. UAVs) to a target position for providing the required positioning assistance to said first mobile object.

Embodiments of wireless client transaction systems are described herein. Other embodiments and related methods are also disclosed herein.

An electronic device (1) is configured to receive one or more wireless signals from one or more beacon systems (21-23). The one or more wireless signals identify the one or more beacon systems. The electronic device is further configured to identify local beacon systems (21-24) which are present in the same area as the electronic device, e.g. from a manual configuration, determine a quantity of the local beacon systems and/or locations of the local beacon systems, and provide one or more location-based functions based on the one or more wireless signals in dependence on the quantity of the local beacon systems and/or the locations of the local beacon systems.

A method of compressing global positioning system (GPS) data, a method of restoring the GPS data, and a GPS device are provided. The method of compressing GPS data includes receiving, by a GPS device mounted in a moving object, coordinate values related to source data of GPS information at a sampling rate in accordance with a communication environment in which the GPS device communicates with an external device with a predetermined band; allocating a data capacity that matches a maximum value of displacement according to a difference which can occur between coordinate values of the moving object; calculating a displacement value between corresponding coordinate values at each time interval of the sampling rate; and generating displacement data by encoding each displacement value according to the data capacity and storing the displacement data in a predetermined device.

In one embodiment, a method includes receiving a sequence of location data points associated with a vehicle from a first source and a sequence of motion data points associated with the vehicle from a second source. The method includes determining a first turn angle of the vehicle based on at least one location data point in the sequence of location data points associated with the first source. The method includes determining that an additional location data point in the sequence of location data points is inaccurate. The method includes determining a second turn angle of the vehicle by using at least one motion data point in the sequence of motion data points corresponding to the additional location data point that is inaccurate. The method includes determining a turn trajectory of the vehicle by using at least the first turn angle and the second turn angle.

Systems and methods are provided that include a control module of a vehicle. The control module instructs at least one of a beacon and a plurality of sensors to broadcast a ping signal in response to a user device being within a threshold distance of the vehicle. The plurality of sensors communicate signal information to the control module, and the signal information indicates an amount of reflection of the ping signal measured by the plurality of sensors. A sensor calibration module (i) determines a presence of a reflective element based on the signal information, and (ii) in response to determining the presence of the reflective element and the user device being connected to a communication gateway of the control module, adjusts a measurement of a first sensor of the plurality of sensors based on the signal information.

Methods, systems, and devices for transmit power control for positioning using non-serving cells are described. A user equipment (UE) may determine that an uplink reference signal may be associated with a positioning procedure. In some cases, the positioning procedure may include transmission, by the UE, of the reference signal to a non-serving cell, which may be farther away from the UE than a serving cell. The UE may determine an absence of a parameter associated with a transmit power for transmitting the reference signal. Based on the absence, the UE may determine the transmit power based on parameters received from a serving cell, based on configuration information, based on a message intercepted from the non-serving cell, or based on other considerations or information. In some cases, the UE may determine the transmit power such that the likelihood of the non-serving cell receiving the reference signal is increased.