US 12,081,987 B2
Identifying and reporting a fraudulent base station
Zeki Bilgin, Istanbul (TR); Emrah Tomur, Izmir (TR); Elif Ustundag Soykan, Istanbul (TR); and Mehmet Akif Ersoy, Istanbul (TR)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/762,410
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Oct. 25, 2019, PCT No. PCT/EP2019/079217
§ 371(c)(1), (2) Date Mar. 22, 2022,
PCT Pub. No. WO2021/058120, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 19404005 (EP), filed on Sep. 24, 2019.
Prior Publication US 2022/0345892 A1, Oct. 27, 2022
Int. Cl. H04W 12/122 (2021.01)
CPC H04W 12/122 (2021.01) 22 Claims
OG exemplary drawing
 
1. A system for identifying a fraudulent base station, the system comprising an analyser device and at least two radio devices, configured to:
provide a report, from any of the at least two radio devices and to the analyser device upon said any of the at least two radio devices having received from a base station an identity request message for a long-term identifier of said any of the at least two radio devices, of the identity request message; and
identify, by the analyser device, the base station as fraudulent when reports of the same base station as received from at least two different ones of the at least two radio devices are received within a threshold time duration with respect to each other.