Abstract: Method and system for detecting stations in wireless local area networks having at least one access point configured to: upon transmission of an association response to a station, send a radio measurement request to the station performing active scanning of a SSID having a unique identifier univocally associated with a persistent MAC address of the station, upon reception of a probe request, check if the SSID field has a unique identifier univocally associated with a persistent MAC address of a station, and associate the source address of the probe request with the persistent MAC address of the station on a database of known stations; detect stations within the coverage area of the access point based on the information stored on the database of known stations.

Abstract: A device and method for the unambiguous identification of Wi-Fi devices is disclosed, by receiving probe request frames sent by Wi-Fi devices, extracting a set of features from a plurality of fields of each probe request frame, assigning a footprint to each probe request frame based on the extracted set of features, for each footprint, performing a cluster analysis on a time series of the sequence numbers included in the header of the probe request frames associated with the corresponding footprint, obtaining at least one cluster per footprint, identifying a Wi-Fi device for each different cluster, which identifies Wi-Fi devices that are not connected to a Wi-Fi network and employ MAC address randomization.

Abstract: A method, system and non-transitory computer-readable medium for the unambiguous identification of non-associated Wi-Fi devices, where upon receiving (102), by an access point (200), a probe request (202) from a Wi-Fi device (201) not associated to the access point (200), sending (104) a probe response (204) addressed to the non-associated Wi-Fi device (201), wherein the probe response (204) comprises a Hotspot 2.0 Indication element (206) including a ANQP Domain ID field (207) with a determined value; receiving (106), by the access point (200), an action frame (208) sent by the non-associated Wi-Fi device (201) in response to the Hotspot 2.0 Indication element (206) of the probe response (204); obtaining a static MAC address (209) of the non-associated Wi-Fi device (201) from the source address of the received action frame (208); and identifying (110) the non-associated Wi-Fi device (201) based on the obtained static MAC address (209).

Abstract: A method and system for handling roaming in train-to-trackside wireless networks including: receiving, by an access point (APi) currently associated with a train access terminal installed on-board a train, radio measurements of signals received by the train access terminal from access points of the train-to-trackside wireless network; determining a next access point (APnext) providing the highest signal quality (maxSQ); evaluating compliance with roaming criteria including: the next access point (APnext) is included in a list of candidate access points (Ni); the time elapsed since the last roaming exceeds a minimum permanency time (tp); the highest signal quality (maxSQ) exceeds the signal quality (SQ(i)) of the access point (APi) by a roaming margin; if the roaming criteria are met, sending a roaming command instructing the train access terminal to roam to the next access point (APnext).

Abstract: Method and system for detecting stations in wireless local area networks having at least one access point configured to: upon transmission of an association response to a station, send a radio measurement request to the station performing active scanning of a SSID having a unique identifier univocally associated with a persistent MAC address of the station, upon reception of a probe request, check if the SSID field has a unique identifier univocally associated with a persistent MAC address of a station, and associate the source address of the probe request with the persistent MAC address of the station on a database of known stations; detect stations within the coverage area of the access point based on the information stored on the database of known stations.

Abstract: A device and method for the unambiguous identification of Wi-Fi devices is disclosed, by receiving probe request frames sent by Wi-Fi devices, extracting a set of features from a plurality of fields of each probe request frame, assigning a footprint to each probe request frame based on the extracted set of features, for each footprint, performing a cluster analysis on a time series of the sequence numbers included in the header of the probe request frames associated with the corresponding footprint, obtaining at least one cluster per footprint, identifying a Wi-Fi device for each different cluster, which identifies Wi-Fi devices that are not connected to a Wi-Fi network and employ MAC address randomization.