Telefonaktiebolaget Lm Ericsson (publ)

Arcelik Anonim Sirketi

Zeki Bilgin

Mehmet Akif Ersoy

Emrah Tomur

Elif Ustundag Soykan

Pinar Comak

Leyli Karacay

Ismet Arsan

Egemen Aydogan

Ustundag Soykan Elif

There is provided a method performed by a first entity of a network. Contextual information for the first entity and a timestamp for the contextual information is acquired (). An authentication token is generated () using the acquired contextual information. Transmission of an authentication request message is initiated () towards a second entity of the network requesting authentication of the first entity with the second entity. The authentication request message comprises the generated authentication token and the timestamp for use in the authentication. An authentication response message indicative of whether authentication of the first entity with the second entity is successful or unsuccessful received ().

Authentication of an entity

A technique for determining an estimated location of a radio network node (FBS) in a cellular network is disclosed. A method implementation of the technique comprises (a) determining, for each of a plurality of measurement reports sent by one or more User Equipments, UEs, (UE) to one or more neighboring radio network nodes of the radio network node (FBS) in the cellular network, an estimated measurement location from which the respective UE (UE) sent the respective measurement report, wherein each of the plurality of measurement reports includes signal strength information indicating a received signal strength from the radio network node (FBS) as measured by the respective UE (UE), (b) for each of a plurality of pairs of the estimated measurement locations: dividing a surrounding area covering the estimated measurement locations of the respective pair into two subregions (Region I, Region II; Region III, Region IV), wherein every location in one of the two subregions (Region I, Region II; Region III, Region IV) is closer to one of the estimated measurement locations of the respective pair and every location in the other one of the two subregions (Region I, Region II; Region III, Region IV) is closer to the other one of the estimated measurement locations of the respective pair, and identifying, from the two subregions (Region I, Region II; Region III, Region IV) and based on the signal strength information included in the measurement reports belonging to the estimated measurement locations of the respective pair, the subregion (Region I, Region II; Region III, Region IV) in which the radio network node (FBS) is more likely located, and (c) determining the estimated location of the radio network node (FBS) as an intersected area of the identified subregions (Region I, Region II; Region III, Region IV).

Technique for determining a location of a radio network node

Source code evaluation is provided. The source code includes a plurality of source code elements, and one of the source code elements is selected. A plurality of tokens is generated based on the source code element, and a binary AST representation is generated based on the plurality of tokens. The binary AST representation includes a plurality of binary AST nodes including binary AST token and null nodes. Each of the binary AST token nodes is based on a respective one of the plurality of tokens. Each of the binary AST token and null nodes is encoded into a respective numeric value. A numeric array representation of the source code element is generated based on the binary AST representation. The numeric values are mapped to locations in the numeric array representation based on respective locations of the binary AST token and null nodes in the binary AST representation.

Methods of evaluating source code using numeric array representations of source code elements

There is provided mechanisms for identifying a fraudulent base station. A system comprises an analyser device and at least two radio devices. The system is configured to provide a report, from any of the at least two radio devices and to the analyser device upon that any of the at least two radio devices having received from a base station an identity request message for a long-term identifier of that any of the at least two radio devices, of the identity request message. The system is configured to 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.

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Istanbul, Turkey

Zeki Bilgin