A method of creating a profile of a room via a plurality of wireless local area network (WLAN) access points may include determining, via a processor executing code instructions of an information handling system, a location fingerprint of a plurality of location data points of an information handling system relative to a plurality of address-identified access points; detecting a received signal strength indicator (RSSI) between the location data points of the information handling system and the access points and a time of flight (TOF) signal distance between the information handling system and the plurality of WLAN access points; and comparing the RSSI to a time of flight (TOF) signal between the location data points and the plurality of address-identified access points to: establish a location fingerprint for the location data points; and detect a reduction in power related to the RSSI passing through a barrier via a network interface device of the information handling system with at least one identified access point to define a barrier location.

A method for associating an address with a fingerprint, according to an aspect of the present invention, comprises the steps of: receiving collected information including an address and a wireless LAN fingerprint; storing the received collected information; filtering multiple pieces of stored collected information according to addresses, on the basis of multiple pieces of collected information for adjacent addresses; and constructing a radio map by using the collected information filtered according to addresses.

An autonomous vehicle (AV) has an electromagnetic (EM) sensor that captures EM sensor data about the environment. The captured EM data is processed to generate an EM map of the environment. The EM data may also be used to identify EM characteristics of the environment. The EM map may be used to modify control and operation of the AV and may also be used to signal conditions to another system managing AVs, to correct localization of the AV, identify anomalies in the environment, and modify a previous signature EM map.

A terminal management apparatus includes a radio wave intensity information obtaining unit that obtains radio wave intensity information indicating intensity of radio waves transmitted from a terminal device being managed; a radio wave intensity examination unit that examines a change in intensity of radio waves transmitted from the terminal device, on the basis of the obtained radio wave intensity information; an arrangement information obtaining unit that obtains arrangement information of an item installed indoors; a terminal information holding unit that holds information on the terminal device; and a disturbance determination unit that determines presence and type of radio disturbance, on the basis of a pattern of the change in intensity of radio waves detected by the radio wave intensity examination unit, the arrangement information obtained by the arrangement information obtaining unit, and the information on the terminal device held by the terminal information holding unit.

An apparatus obtains results of measurements, which are performed by a mobile device on signals of communication nodes. The measurement results for each of the communication nodes include a signal strength related value and an identification of the communication node. The apparatus obtains for one of the communication nodes a stored indication of a location and a stored signal strength related value and determines a difference between measured and stored signal strength related values. The apparatus estimates the position of the mobile device based on the results of measurements and on obtained stored radio model data. In the case that the determined difference for the at least one communication node falls short of a predetermined threshold, the apparatus determines a distance between estimated position and indicated location for the at least one communication node, as an indication of a health state of stored radio model data.

An apparatus or an add-on module for a, in particular mobile, device, is disclosed. In an embodiment, the device to be localized or the add-on module uses a measuring unit to measure, via suitable sensors, a local electromagnetic field distribution generated by a given infrastructure. An instantaneous position of the add-on module or of the device equipped therewith is then determined by comparing the measured field distribution with a specified map. In order to facilitate tracking of the add-on module or of the device, the measured field distribution and/or the determined position can be sent via a wireless data connection to a server unit.

The present invention relates to a method for monitoring network performance in a wireless communication network comprising multiple cells that communicate with wireless devices. Each cell provides coverage in a geographical area and the wireless communication network has a cell coverage plan with a calculated performance. The method comprising: a) retrieving geospatially located measurements from wireless devices; b) connecting each geospatially located measurement to a cell; c) arranging measurements into at least one cluster per cell; d) identifying deviations from the cell coverage plan; and e) initiating actions to reduce deviations.

The system and method provide methods and devices that compute the indoor location of a user device with improved accuracy and reduced runtime complexity. A method for determining an indoor location of a user device may be done by a server. According to the method, the server measures quality of each of a plurality of calibration points stored in the server. The measurement of the quality includes calculation of a first distance from each of the plurality of calibration points to each other calibration point of the plurality of calibration points, calculation of a second distance from each of the plurality of calibration points to each other calibration point of the plurality of calibration points, and determination of a correlation between the first distance and the second distance for each calibration point of the plurality of calibration points.

Embodiments of the present invention relate to a mobile Wi-Fi access point determining method, a Wi-Fi access point-based positioning method, a Wi-Fi AP determining device, and a Wi-Fi-based positioning device. The method includes: determining a signal graph of each of a plurality of Wireless Fidelity access points Wi-Fi APs in a positioning area; estimating a Wi-Fi AP location based on the Wi-Fi AP signal graph; determining a divergence of the Wi-Fi AP signal graph based on the estimated Wi-Fi AP location; determining, based on the divergence of the Wi-Fi AP signal graph, whether the Wi-Fi AP is a mobile Wi-Fi AP; when the Wi-Fi AP is a mobile Wi-Fi AP, deleting the mobile Wi-Fi AP from a fingerprint database; and finally determining a positioning result of an apparatus whose signal strength is obtained. Positioning accuracy is improved in the embodiments of the present invention.

A method, apparatus and system are provided for determining displacement information for a radio node. In a method respective position information is obtained that is indicative of a position of a respective radio node. The method determines the position of the respective radio node based on respective radio measurements of further respective radio nodes surrounding the respective radio node and on further respective radio measurements gathered by the respective radio node. The respective signals are sent by the one or more respective radio nodes surrounding the respective radio node. The method also determines displacement information based on the respective position information that is obtained and the determined position of the respective radio node. The displacement information is indicative of a displacement of the respective radio node if the determined position of the respective radio node differs from the position of the respective radio node represented by the obtained position information.