Abstract: Apparatus for determining a range to one or more targets are provided. In various embodiments, the apparatus comprises a field transceiver module and a computing node in communication with each other. The field transceiver module is configured to generate an electromagnetic probe carrier field; under the control of the computing node, phase-modulate the carrier probe field according to a time-periodic probe modulation waveform having a probe modulation phase that includes a probe modulation frequency and a probe modulation phase offset, thereby generating a modulated probe field; direct the modulated probe field at one or more targets and to receive a modulated reflected probe field from one or more targets; demodulate the modulated reflected probe field and generate a probe signal corresponding to the probe modulation waveform.

Abstract: A planar-beam, light detection and ranging (PLADAR) system can include a laser scanner that emits a planar-beam, and a detector array that detects reflected light from the planar beam.

Abstract: A method for predicting a structure of an indoor space using radio propagation channel analysis through deep-learning is disclosed. Channel data of radio signals are collected for various indoor spaces, and radio channel parameter data such as PDP, AoA, and AoD are extracted therefrom. A large amount of propagation channel parameter data is input to an artificial neural network together with vertex coordinate data of the corresponding indoor space and deep-learning is performed in advance. The propagation channel parameter data are extracted from the indoor space to be predicted, the best matching indoor space is detected based on the trained artificial neural network. The best matching indoor space is predicted as the structure of the indoor space.

Abstract: A navigation device applied to a wireless identification tag includes a movable signal transceiver and an operation processor. The movable signal transceiver is adapted to transmit a detection signal and receive an actuation signal relevant to the detection signal. The operation processor is electrically connected to the movable signal transceiver. The operation processor is adapted to analyze the actuation signal to acquire relative position between the movable signal transceiver and the wireless identification tag, and generate a motion parameter in accordance with the relative position for moving the movable signal transceiver.

Abstract: A method for geolocating a receiver by measuring times of reception, by the receiver, of a plurality of geolocation signals originating from a plurality of emitters, the geolocation signals are emitted on multiple different wavelengths, at least one geolocation signal having a frequency less than 1 GHz.

Abstract: A system includes an integrator node (IN), external to a building. A gateway, within the building, is coupled to the integrator node by a first link. A gateway outdoor unit access point (GOUAP) is coupled to the IN by a second link. The GOUAP is coupled to a user device by a third link. The gateway is coupled to a Cloud. The GOUAP provides access to the Cloud, by the user device, when the user device is outside the building. The first link and/or the second link utilizes MOCA. The third link utilizes Wi-Fi. An Internal Network Extender (INE) is coupled to the gateway by a fifth link and located within the building. While the user device is external to the building, the user device utilizes the third link, the second link, and the first link to communicatively couple with the gateway.

Abstract: Architectures and techniques are presented that can provide point-to-point analysis to generate an improved signal strength prediction (SSP) based on, e.g., earth surface image data processing and analysis to draw conclusions of line of sight (LOS) along the propagation path between a BTS or another AP transmitter and CPE receiver. For example, USGS image data and/or elevation data of locations are identified to correspond to signal propagation between the transmitter and receiver can be analyzed for LOS signal quality at a fixed location, in addition to the statistical model prediction of the RF signal quality. As a result, foliage or terrain that obstructs the LOS can be identified and utilized to improve SSP by eliminating the additional pathloss due to LOS obstructions. Such can provide a significant improvement to SSP results that are conventionally predicted by statistical models rather than a point-to-point analysis.

Abstract: The technology described herein selects an optimal multiplexing technology to use for a communication session. The optimal technology will minimize the probability of a disruption (e.g., a dropped call) during a communication session. A multiplexing decision process may be implemented when a user equipment (UE) is not capable of transitioning between two different multiplexing technologies and is located in a geographic area where networks using two different multiplexing technologies are available. In one aspect, the selection of an optimal multiplexing technology considers the network context at a time when the communication session is initiated, the UE's context (e.g., location near network edge, mobility profile), a device profile for the UE model, the UE history, and usage history for the user of the UE.

Abstract: A system for localizing cellphones served by commercial network of base-stations and operative in conjunction with at least one catcher including a catcher-controller, and at least one transmitter and at least one receiver, thereby to define an area of coverage for the catcher, the system comprising at least one DF/geolocation module including a DF/geolocation controller and at least one set of receivers operative to receive uplink signal/s transmitted by cellphone/s.

Abstract: A product locating system is provided. The system includes at least one Radio Frequency (RF) backscatter transmitter configured to emit a main carrier RF signal that forms an excitation signal. The system further includes a passive RF backscatter tag associated with a product and configured to generate an Ultra-Wideband (UWB) signal from the excitation signal. The system also includes at least one RF backscatter receiver configured to simultaneously receive both the excitation signal from the at least one RF backscatter transmitter and the UWB signal from the passive RF backscatter tag, and compute the time-difference-of-arrival (TDoA) therebetween. TDoA information from multiple RF backscatter receivers, including the at least one RF backscatter receiver, is aggregated to compute the location of the product to which the passive RF backscatter tag is attached.

Abstract: Provided is a positioning apparatus including a communicator including at least three transceivers that are arranged in a first line; and a processor configured to calculate a first phase difference between reference signals received by a first transceiver pair arranged in the first line, a second phase difference between reference signals received by a second transceiver pair arranged in the first line, and a third phase difference between reference signals received by a third transceiver pair arranged in the first line, to determine an integer ambiguity of the second phase difference and an integer ambiguity of the third phase difference based on the first phase difference, and to calculate a position of an apparatus to be positioned based on the second phase difference, the integer ambiguity of the second phase difference, the third phase difference, and the integer ambiguity of the third phase difference.

Abstract: In one implementation, a method for detecting a configuration of wireless sensors within a vicinity includes a method of assessing wireless sensors in the vicinity of an application computing system. The application computing system is operated in a listen mode to receive and record wireless transmissions produced by one or more wireless sensors producing wireless transmissions in the vicinity of the application computing system. The recorded wireless transmissions are evaluated using a rule set that embodies normal operating characteristics of various types of wireless sensors in an operating environment to generate a conclusion regarding at least one attribute of at least one wireless sensor that produced the recorded wireless transmissions. The generated conclusion can be used so that the at least one wireless sensor is utilized in the application computing system.

Abstract: Recent decades have brought tremendous advances in communication systems which have given rise to the global proliferation of smartphones and other mobile communication systems. A signal processing system implements technical solutions for determining building footprints from inputs including signal data associated with mobile communication devices.

Abstract: The application provides a short training sequence design method and apparatus. The method includes: determining a short training sequence, where the short training sequence may be obtained based on an existing sequence, and the short training sequence with comparatively good performance may be obtained through simulation calculation, for example, by adjusting a parameter; and sending a short training field on a target channel, where the short training field is obtained by performing inverse fast Fourier transformation IFFT on the short training sequence, and a bandwidth of the target channel is greater than 160 MHz.

Abstract: A central node receives, from each of a plurality of access points providing access for user equipments to a communication network, a result of a measurement related to a position of a user equipment, receives additional information comprising at least one of an evaluation of the result of the measurement and a reference towards which the measurement was done, and calculates the position of the user equipment by combining the results of the measurements received from the plurality of access points using at least one of the evaluation and the reference.

Abstract: Systems, methods, computer program products, and apparatuses to determine, by a neural network based on training data related to wireless signals exchanged by a device and a plurality of wireless access points in an environment, a respective distance between the device and each wireless access point, receive location data related to a respective location of each wireless access point of the plurality of wireless access points, determine a geometric cost of the neural network based on a geometric cost function, the respective distances, and the received location data, and train a plurality of values of the neural network based on a backpropagation and the determined geometric cost.

Abstract: In some implementations, methods for selecting a set of beacons that are to be monitored by a mobile device may be employed. Specifically, an optimal set of beacons to monitor may be provided to a mobile device depending on particular groups of beacons that are in proximity to the mobile device, the distance from the mobile device to each of the particular groups of beacons, and the mobile device's position/movements as provided by a tracking service such as GPS. These techniques may ensure that the mobile device is not blind to the closest and/or most relevant beacons.

Abstract: Stock management for wood and lumber products requires measuring and counting items individually on a continuous basis; considering a single lumber package alone can contain hundreds of pieces, it is a tedious task that is error prone when done manually. The invention provides a technology solution that involves taking a picture of products using a smart-phone, or a tablet's built-in camera, processing said picture data to detect individual items using Artificial Intelligence Object Detection methods, and utilizing special algorithms to measure and compute unit volume to present the user a detailed description, measure, count, and a summary. This process helps identify and take stock counts faster and with higher accuracy.

Abstract: Disclosed in various embodiments of the present disclosure are a positioning method in a wireless communication system, and a device supporting same.

Abstract: A test device determines time error in a fronthaul network of a radio access network. A first Global Navigation Satellite System (GNSS) receiver receives GNSS signals from a GNSS satellite through a reference GNSS signal distribution system (GSDS) having a known signal propagation delay. The first GNSS receiver calculates and outputs a corresponding reference One Pulse Per Second (1PPS) signal. A second GNSS receiver receives the GNSS signals through a device under test including a GSDS having an unknown signal propagation delay. The second GNSS receiver calculates and outputs a corresponding DUT 1PPS signal. The test device determines the unknown signal propagation delay of the DUT by comparing the reference 1PPS signal to the DUT 1PPS signal.

Abstract: A position calibration method including, moving body information including first global estimated position information indicating global position information recognized as a geographic position of the moving body, the method including: extracting local estimated position information indicating a position of the moving body within the detection target region from information acquired by the sensor unit; calculating second global estimated position information estimated as the geographic position of the moving body based on the local estimated position information; and performing calibration of third global estimated position information held as a geographic position of the sensor unit when a determination value obtained from the difference between the first global estimated position information and the second global estimated position information exceeds a preset threshold value and based on a result of calibration processing in which a difference between the first global estimated position information and the

Abstract: An apparatus configured to be worn on a head of a user, includes: a screen configured to present graphics to the user; a camera system configured to view an environment in which the user is located; and a processing unit configured to determine a map based at least in part on output(s) from the camera system, wherein the map is configured for use by the processing unit to localize the user with respect to the environment; wherein the processing unit of the apparatus is also configured to obtain a metric indicating a likelihood of success to localize the user using the map, and wherein the processing unit is configured to obtain the metric by computing the metric or by receiving the metric.

Abstract: A method of verifying aircraft position information based on ADS-B messages includes receiving an ADS-B message indicating an identifier of an aircraft and indicating a position of the aircraft. The method includes accessing a tamper-resistant distributed public ledger of authenticated flight plan data to determine whether flight plan data associated with the identifier is stored in the tamper-resistant distributed public ledger. The method includes, conditioned upon a determination that the flight plan data is stored in the tamper-resistant distributed public ledger, comparing the position to a flight path indicated by the flight plan data. The method includes selecting a characteristic of an icon corresponding to the aircraft based on a determination whether the position corresponds to the flight path. The method further includes displaying, on a display device and based on the characteristic, the icon at a location corresponding to the position.

Abstract: A common method for providing user-input to an electronic system consists of tracking the position and motion of an object moved by the user and conveying this information to the electronic system. One embodiment of a positional tracking system for an object has an external and stationary magnetic-field emitter, a magnetic-field sensor which moves with the tracked object, and a microprocessor that compares magnetic-field intensity measurements taken by the sensor and compares it to magnetic-field characteristics defined for the external magnetic field emitter. A nonlinear equation solver, particle filter, or other method is used to determine the position of the sensor in the magnetic field. In this way the position of an object can be tracked using a single magnetic field emission source. This positional information can be combined with an inertial tracking system to mitigate drift errors.

Abstract: This disclosure describes techniques that enable a Remote Radio Unit (RRU) configuration controller to detect a misconfigured RRU on a base station node. The RRU configuration controller may be configured to capture telemetry data within a service sector of a base-station node. The RRU configuration controller may further determine a signal Quality of Service (QoS) associated with the service sector, based on the telemetry data. In doing so, the RRU configuration controller may determine whether the RRU associated with the service sector is misconfigured.

Abstract: Provided is a positioning method performed by a user equipment (UE). The positioning method includes receiving reference signals from a plurality of base stations; acquiring phase difference information depending on a wavelength of at least one subcarrier among subcarriers included in the reference signals; calculating first estimated coordinates of the UE based on first phase difference information depending on a wavelength of a first subcarrier among the subcarriers; and calculating a first travel distance difference between the reference signals from the first estimated coordinates and estimating integer ambiguity of a second phase difference depending on a wavelength of a second subcarrier from the first travel distance difference.

Abstract: A method of determining a posterior error probability distribution for a parameter measured by a Global Navigation Satellite System (GNSS) receiver. The method comprises receiving a value for each of one or more GNSS measurement quality indicators associated with the GNSS measurement of the parameter. The or each received measurement quality indicator value is provided as an input into a multivariate probability distribution model to determine the posterior error probability distribution for the GNSS measurement, wherein the variates of the multivariate probability distribution model comprise error for said parameter, and the or each measurement quality indicator.

Abstract: A network controller including processing circuitry may be configured to receive dynamic position information indicative of a three dimensional position of at least one mobile communication node, compare fixed position information indicative of fixed geographic locations of respective access points of a network to the dynamic position information to determine a relative position of the at least one mobile communication node relative to at least one of the access points based on the fixed position information and the dynamic position information, and provide network control instructions to at least one network asset based on the relative position.

Abstract: Systems, methods, computer program products, and apparatuses to determine, by a neural network based on training data related to wireless signals exchanged by a device and a plurality of wireless access points in an environment, a respective distance between the device and each wireless access point, receive location data related to a respective location of each wireless access point of the plurality of wireless access points, determine a geometric cost of the neural network based on a geometric cost function, the respective distances, and the received location data, and train a plurality of values of the neural network based on a backpropagation and the determined geometric cost.

Abstract: Inter-alia, a method is disclosed comprising: receiving one or more beacon signals sent by one or more beacon devices (140-1-140-5); determining one or more identifier information of the one or more beacon devices, wherein the one or more identifier information of the one or more beacon devices are represented by the one or more beacon signals; and broadcasting or triggering broadcasting broadcast information for enabling determining of a position of the at least one first apparatus based at least partially on the determined one or more identifier information of the one or more beacon devices, wherein the broadcast information at least partially comprises or represents the determined one or more identifier information of the one or more beacon devices. It is further disclosed an according apparatus, computer program and system.

Abstract: A method for determining an occupied region of a first radio device is provided. According to the method, a signal is transmitted from the first radio device and received by at least two additional radio devices. Based on a propagation time of the signal from the first radio device to the additional radio devices, a surrounding region is determined around each of the additional radio devices in which the first radio device is located. The occupied region of the first radio device is determined based on an overlapping region which results from an overlapping of all surrounding regions. Alternatively, signals can also be transmitted from the additional radio devices and received by the first radio device. The method can be used to determine whether an automobile key having a radio transmitter is located in a vehicle.

Abstract: Systems and methods are disclosed herein that relate to positioning in a cellular communications system. In some embodiments, a method for determining a three dimensional location of a wireless device in a cellular communications network comprises obtaining a plurality of measurements for a wireless device, where the plurality of measurements are Time Difference of Arrival (TDOA) related measurements. The method further comprises computing a three dimensional position of the wireless device using the plurality of measurements and a vertical surface model, wherein the vertical surface model is a translated and scaled version of an initial vertical surface model. The new vertical surface model provides translation and scaling of the initial vertical surface model to a suitable range before it is used to determine the three dimensional position of the wireless device such that accuracy is improved, e.g., in large rural cells.

Abstract: Disclosed are techniques for time-multiplexing between sensing and adjacent signal transmission functionalities on the same hardware platform, such as a chipset supporting a main ranging device in passive entry passive start (PEPS) applications using secure multi-carrier phase-based ranging solutions to estimate the range between the main ranging device and a target device. The supporting chipset may be configured to operate as a sensor to receive continuous tone (CT) signals or round-trip time (RTT) packets exchanged between the main ranging device and the target device in a timeslot of a ranging cycle to improve the accuracy of the range estimates. In a different timeslot, the supporting device may operate as a transmitter to transmit CT signals or RTT packet on a channel adjacent to the channel used by the main ranging device to protect the CT signals or the RTT packets transmitted from the main ranging device against symbol level attacks.

Abstract: In one implementation, a method for detecting a configuration of wireless sensors within a vicinity includes a method of assessing wireless sensors in the vicinity of an application computing system. The application computing system is operated in a listen mode to receive and record wireless transmissions produced by one or more wireless sensors producing wireless transmissions in the vicinity of the application computing system. The recorded wireless transmissions are evaluated using a rule set that embodies normal operating characteristics of various types of wireless sensors in an operating environment to generate a conclusion regarding at least one attribute of at least one wireless sensor that produced the recorded wireless transmissions. The generated conclusion can be used so that the at least one wireless sensor is utilized in the application computing system.

Abstract: A method and a device for collaborative geolocation of one or more nodes Mi in a communication network are provided, the nodes inter-exchanging distance and/or position information, comprising at least the following steps determine a first sub-graph V1 of neighbor nodes of a current node A to be geolocated, in N hops, select in the first sub-graph V1, the largest observable sub-graph V3, execute a geolocation algorithm on the nodes of the largest observable sub-graph V3 and determine at least the position of the current node A. An ad-hoc communication network is also provided.

Abstract: A system and method for determining location information of a portable device relative to an object based on an environment of the object is provided. The system and method may determine an environment of the object based on a received signal characteristic of communications transmitted from a first object device disposed on the object. Based on the determined type of environment or a characteristic thereof, a locator or an adapter, or both, may be selected for determining location information about a portable device relative to the object.

Abstract: A radio frequency identification (RFID) system includes an array of antennas to distinguish line-of-sight (LOS) paths from non-line-of-sight (NLOS) paths. The distance between adjacent antennas in the array of antennas is less than half the wavelength of the radio frequency (RF) signal of the system. Each antenna in the antenna array is also digitally controlled to change relative phase difference among the antennas, thereby allowing digital steering of the array of antennas across angles of arrival (AOAs) between 0 and ?. The digital steering generates a plot of signal amplitudes as a function of AOAs. LOS paths are distinguished from NLOS paths based on the shapes (e.g., depth, gradient, etc.) of local extremes (e.g., maxima or minima) in the plot.

Abstract: An electronic apparatus determining whether an external device spoofs a location thereof includes a communicator, a memory, and a processor configured to receive a first beacon signal and a second beacon signal from a first external device and a second external device, respectively, through the communicator, obtain information on a first distance between the electronic apparatus and the first external device, and information on a second distance between the electronic apparatus and the second external device, based on the first beacon signal and the second beacon signal, respectively, receive information on a third distance between the first external device and the second external device from at least one of the first external device and the second external device through the communicator, and identify whether the first external device spoofs an actual location of the first external device relative to the electronic apparatus, based on the first distance, the second distance, and the third distance.

Abstract: An information processing device and method, a transmitting device and method, and a receiving device and method are disclosed for multiplexing transmission signals in the same channel. In one example, transmission signals are generated by performing chirp modulation on data to be transmitted, and the transmission signals are multiplexed by shifting transmission timings of a plurality of transmission signals in a time direction and transmitting the transmission signals. Further, a plurality of chirp-modulated transmission signals which are multiplexed by shifting the transmission timing in the time direction and transmitted from a transmission side are received, and the plurality of received transmission signals are dechirped at timings according to the transmission timings.

Abstract: Embodiments are directed to automatic location of access points in a network. An embodiment of one or more non-transitory computer-readable storage mediums includes instructions for transmitting a request from a computing device to multiple access points in a network to determine a distance between each pair of access points of the multiple access points; receiving at the computing device the determined distances between each pair of access points; generating a proximity matrix containing the determined distances between each pair of access points; solving the proximity matrix to automatically generate a set of locations for the multiple access points; and orienting the generated set of locations for the multiple access points based on known locations of one or more anchor points in a subset of the access points.

Abstract: Methods and systems for determining risk of pipe deformation in a hydraulic fracturing operation include receiving a plurality of parameters pertaining to the well operation from a plurality of wells, developing a relationship between the plurality of parameters and a risk of pipe deformation, receiving the plurality of parameters pertaining to the well operation from a predetermined well, and determining the risk of pipe deformation in the predetermined well based on the plurality of parameters. The method further includes taking corrective action to prevent the pipe from deformation, such as improving the cementing conditions of the casing, performing cement bond evaluation, choosing safe locations for hydraulic fracturing or skipping zones of high risk or managing around pipe deformation by deploying flow-through bridge plugs, or dissolvable bridge plugs, or any other type of isolation method that does not require well intervention to remove the barrier or altogether re-drill a new well.

Abstract: There are proposed a base station and User Equipment UE, for determining and applying separate Channel State Information. CSI, for flexible subframes in a wireless communication system applying time division duplex, TDD. The method in a UE comprises, for a flexible subframe, receiving (103) a signal from a base station, and determining (104) whether a reference signal for CSI measurement is comprised in the received signal. The method further comprises determining (106) CSI for the flexible subframe based on the reference signal when a reference signal for CSI measurement is comprised in the received signal, and reporting (107) the determined CSI to the base station.

Abstract: A method and system to receive an indication of a location of an asset from a tag associated with and adjacent to the asset, the location of the asset being within a known mapping of an indoor environment; receive an indication of a location of an augmented reality device, the indicated location of the asset being within the known mapping of the indoor environment; determine a location of the asset relative to the augmented reality device based on the received information from the asset and the received information from the augmented device; determine contextual directions from the determined location of the augmented reality device to the indicated location of the asset; and present, in a current field of view display on the augmented reality device a combination of a representation of the determined location of the asset and a representation of the determined contextual directions.

Abstract: Described are systems and techniques configured to determine a tote placement indicative of a position of a user relative to a tote, or vice versa. The determination may be based at least in part on data such as images acquired from cameras onboard the tote, images acquired from cameras external to the tote, proximity sensors onboard the tote, weight sensors, and so forth. Orientation of information presented on a display device of the tote may be based on the tote placement.

Abstract: Methods and devices for synchronizing a device clock in a wireless network (e.g. a LPWAN) are disclosed. Example methods comprise identifying a device temperature, identifying a clock drift associated with the identified device temperature and applying a correction to the device clock based on the identified drift. For the identified device temperature, the drift is identified by comparing the confidence of the drift value in a pre-calibration curve generated from fixed drift values in a pre-calibration table with the confidence of the drift value in a learning curve generated from variable drift values in a learning table and selecting the drift value from the curve having the higher drift confidence.

Abstract: The invention relates to a method for locating at least two sources emitting electromagnetic pulses in an environment comprising two reflectors. The method comprises receiving, by a detector, for each source to be located, at least one same emitted pulse, received directly from said source and received by reflection on one of the reflectors. The method further comprises: identification of the pulses received directly and the pulses received by reflection, grouping by pairs of pulses received directly with pulses received by reflection, calculating, for each pair, the difference between the date of arrival of the pulse received by reflection relative to the date of arrival of the pulse received directly, and determining the distance of each source from the detector from calculated differences in dates of arrival.

Abstract: A method for creating dynamic safe zones comprises determining, by a tracking device, the tracking device is outside a domicile, monitoring, by the tracking device, a location of the tracking device, in response to the location satisfying a condition, creating a safe zone for the tracking device, and while the tracking device is within the safe zone, reducing power consumption of the tracking device, wherein the method is performed using one or more computing devices.

Abstract: A position is determined using GNSS (Global Navigation Satellite Systems) with an antenna assembly having a number of antennas that are oriented with different direction vectors. Antenna-received signals are supplied to an evaluation assembly, which includes GNSS receivers and an evaluation device. The antenna-received signals are detected with regard to their satellite-related signal-to-noise ratio and, in relation to each satellite, the satellite-specific signal-to-noise ratio measured values that are positively distinguished in their signal-to-noise ratio from other signal-to-noise ratio measured values relating to the same satellite are selected. A satellite-related main direction vector signal is formed from each of the direction vector signals of the antennas. The main direction vector signals are compared with the orientation vector signals that characterize the position of the respective satellites in orbit; in the event of minor deviations a position indication is given.

Abstract: When an optical motion detector of a room device detects movement in a room in which it is installed, the room device transmits a radio message including its position. Upon receiving the radio message, a mobile device measures the signal strength to determine whether it is high. If the movement detected by the optical motion detector correlates chronologically with movement detected by an inertial movement sensor of the mobile device, the mobile device concludes that the mobile device is located in the room or in proximity of the position of the room device. The identity of the mobile device is protected, as no server or other device is required for positioning to which the mobile device would have to disclose the identity, position or sensor information thereof.

Abstract: Provided are a method, device and system for estimating the location of a user device by using radio signals emitted from access point (AP) devices. In the location estimating method implemented by the user device may include steps of measuring received signal strength of a signal received from two or more AP devices deployed within a specific range, establishing a binding box for each of the two or more AP devices by using the measured received signal strength, and estimating a current location of the user device by using points of contact between the established binding boxes.