It is disclosed to one of produce and obtain at least one set of fingerprint information, wherein the at least one set of fingerprint information comprises identification information for identifying at least one of a radio node and a cell observed at at least one position of the device, to perform at least one check at least with the at least one set of fingerprint information to determine if the at last one set of fingerprint information contains at least one error; and to control a process for at least one of collecting and providing fingerprint information based at least on a result of the at least one check. It is further disclosed to one of provide and cause to be provided a representation of at least one check to be performed at least with at least one set of fingerprint information to determine if the at least one set of fingerprint information contains at least one error, wherein the at least one set of fingerprint information comprises identification information for identifying at least one of a radio node and a cell observed at at least one position of the device, and to one of provide and cause to be provided a representation of a controlling of a process for at least one of collecting and providing fingerprint information to be exerted based at least on a result of the at least one check. Also disclosed are according apparatuses, and an according system, an according computer program and an according computer readable storage medium storing the computer program.

A method for geolocating a terminal of a wireless communication system, based on a learning method making it possible to estimate the geographical position of a terminal using both a radio signature corresponding to a set of values representative of the quality of radio links existing between the terminal located at the sought position and a plurality of base stations of the wireless communication system, as well as a reference data set associating radio signatures with known geographical positions. To limit the complexity of the learning algorithm and to make it resistant to topology changes of the access network, each radio signature contains a selection of N values among the set of measured values, as well as the geographical positions of the corresponding base stations.

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.

An apparatus obtains at least one fingerprint sample for at least one communication node, wherein each fingerprint sample of the at least one fingerprint sample comprises results of a measurement performed by a mobile device at a particular position on a signal of a communication node of the at least one communication node including at least a signal strength related value (201); and determines, for at least one fingerprint sample of the at least one fingerprint sample, whether the respective fingerprint sample fulfills an inconsistency criterion, wherein the inconsistency criterion is based on the signal strength related value of the respective fingerprint sample and a distance value indicative of an estimated distance between the mobile device and the communication node associated with the fingerprint sample (202).

Methods and systems for generating map information of an environment using channel state information (CSI) of wireless signals received by access points (APs) in the environment are disclosed. In some implementations, a system uses CSI of a wireless signal received by a respective AP to determine a time-of-flight (ToF) and an angle-of-arrival (AoA) of one or more reflected path signal components of the wireless signal, and estimates the locations of points or surfaces in an area of the respective AP based on the ToF and AoA of the reflected path signal components. The estimated locations of the points or surfaces can be used to generate map information for the area. The system aggregates map information generated for different areas of the environment to determine map information for the entire environment. The wireless signals may be received from wireless stations or user equipment, or may be received from the respective AP.

Provided is a computer-implemented method including acquiring a first pieces of observation data that include a position of a mobile object and a received signal strength of a wireless signal observed by the mobile object; and correcting each position of the mobile object included in each piece of observation data of the first pieces of observation data using one position of the mobile object at a time before the received signal strength included in the piece of observation data is observed.

Examples disclosed herein relate to an autonomous driving system in a vehicle having a radar system with a Non-Line-of-Sight (NLOS) correction module to correct for NLOS reflections prior to the radar system identifying targets in a path and a surrounding environment of the vehicle, and a sensor fusion module to receive information from the radar system on the identified targets and compare the information received from the radar system to information received from at least one sensor in the vehicle.

Each of a plurality of transmitters, which are distributed at fixed locations of a site, regularly transmits radio signals. A mesh node performs measurements on radio signals transmitted by at least one transmitter and transmits messages including results of the measurements. The mesh node belongs to a plurality of mesh nodes, each configured to monitor at least one environmental parameter at the site. A gateway node receives messages transmitted by the mesh node directly and/or via at least one other mesh node of the plurality of mesh nodes, wherein each of the plurality of mesh nodes is configured to receive messages from other mesh nodes of the plurality of mesh nodes and to forward received messages. The gateway node transmits received messages to a server that is configured to monitor mesh nodes at the site based on results of measurements.

A method comprising: receiving a harvest trace from a mobile device, the harvest trace including a plurality of location fixes each corresponding to a location at a venue, each location fix associated with data including one or more RSSI measurements of one or more wireless signals received from each of a plurality of wireless access points positioned at the venue, the plurality of location fixes including at least two location fixes that have a positional relationship with each other; comparing the data associated with one of the location fixes with data associated with a reference point identified in a radio map of the venue; and updating the radio map of the venue by updating the data associated with the reference point based on the data associated with the one of the location fixes.

Examples disclosed herein relate to an autonomous driving system in a vehicle having a radar system with a Non-Line-of-Sight (NLOS) correction module to correct for NLOS reflections prior to the radar system identifying targets in a path and a surrounding environment of the vehicle, and a sensor fusion module to receive information from the radar system on the identified targets and compare the information received from the radar system to information received from at least one sensor in the vehicle.