Patent classifications
G01S5/011
Device localization using RSS based path loss exponent estimation
A method for tracking a device determines correlations among locations of the device including a set of previous locations of the device and an initial estimate of a current location of the device, and determines, for each access point (AP), a current path loss exponent for the current location of the device using previous path loss exponents determined for the previous locations of the device and the correlations among the locations of the device. The method determines the current location of the device according to a path loss model using received signal strengths (RSS) of signals received from each AP at the current location and the current path loss exponent determined for each AP. The current path loss exponent for each AP are updated using the current location of the device and the RSS of signals received from the corresponding AP.
Techniques for determining a position fix of an object using one or more mobile devices co-located with the object
Disclosed are devices, systems and methods for combining observations obtained at two different mobile devices attached to a human user for performing a navigation operation. For example, observations of a signal acquired at a first mobile device may be selected for computing a position fix based, at least in part, on a utility indicator associated with the observations.
Position estimation method, position estimation device, and position estimation system
A position estimation method includes: acquiring, from plural receivers that receive a plural received signal strengths of radio waves transmitted from a transmitter and transmit the plural received signal strengths, the plural received signal strengths; and in a case in which a plural distances between the transmitter and the plural receivers are calculated based on the plural received signal strengths, and a position of the transmitter is estimated by using the plural distances, and in a case in which a distance among the plural distances is smaller than a predetermined threshold, performing a first correction processing by estimating a position of a receiver corresponding to the distance smaller than the threshold as a position of the transmitter.
Positioning method in wireless communication system, and device for supporting same
Disclosed are a positioning method in a wireless communication system, and a device for supporting same.
DETECTING NON-LINE-OF-SIGHT WIRELESS SIGNAL PATHS
Techniques for detecting non-line-of-sight (NLOS) wireless signal paths are described. In some embodiments, a method thereof may include receiving positioning information from one or more networked devices, the positioning information comprising information indicative of measurements of one or more wireless signals transmitted between one or more wireless network nodes and one or more UEs, location data indicative of a location of each of the one or more UEs, or a combination thereof; determining a commonality associated with the received positioning information; and based on the determined commonality, determining that the NLOS wireless signal path is present between the given UE and the one or more wireless network nodes.
Mobile signal based building footprints
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.
Wireless Communication Device Environment Detection
Wireless communication equipment (12, 16) detects a targeted signature over time in a Doppler spread and/or an angular spread associated with a wireless communication device (12). Based on detecting the targeted signature, the wireless communication equipment (12, 16) detects a transition (14) by the wireless communication device (12) between an indoor environment (8) and an outdoor environment (6). In some embodiments, based on detecting the transition (14), the wireless communication equipment (12, 16) adapts one or more communication parameters, adjusts resources allocated to the wireless communication device (12), and/or initiates handover of the wireless communication device (12).
Signalling Framework for Virtual Transmission-Reception Point Localization in Wireless Networks
There are provided apparatuses, methods and computer program products. In accordance with an embodiment, there is disclosed a method including receiving from one or more user equipment an indication that the user equipment is capable to report information about a virtual transmission reception point related to a wireless communication system; configuring a measurement resource set for virtual transmission reception point; informing the one or more user equipment about the measurement resource set; receiving from the one or more user equipment an enhanced measurement report containing measurements of signals received from one or more transmission reception points and virtual transmission reception points; combining several enhanced measurement reports received from one or more user equipment; and estimating locations of the one or more virtual transmission reception points on the basis of the combined enhanced measurement reports.
METHOD AND DEVICE FOR ACQUIRING ROAD TRACK, AND STORAGE MEDIUM
The present disclosure discloses a method and device for acquiring a road track, and a storage medium. The method includes: acquiring, by a visual odometer, when moving in a collecting area, coordinate information of a location of the visual odometer in real time, and the collecting area being an area where GNSS signals are blocked; and sending, by the visual odometer, the coordinate information to a second device, causing the second device to generate a road track in the collecting area according to the acquired coordinate information.
Multi-path mitigation in rangefinding and tracking objects using reduced attenuation RF technology
An autonomous system with no Customer Network Investment is described, wherein the system is configurable to operate on in a band in addition to the LTE band. Such system allows the definition of hybrid operations to accommodate the positioning reference signals (PRS) of LTE and already existing reference signals. The system can operate with PRS, with other reference signals such as cell-specific reference signals (CRS), or with both signal types. As such, the system provides the advantage of allowing network operator(s) to dynamically choose between modes of operation depending on circumstances, such as network throughput and compatibility.