User authentication in a mobile communications network

Details User authentication in a mobile communications network User authentication in a mobile communications network

2005-10-18

2005-10-18

Perez-Gutierrez, Rafael (Department: 2686)

Telecommunications

Radiotelephone system

Security or fraud prevention

C455S410000, C455S418000, C455S558000, C455S432100, C235S482000, C235S380000

Reexamination Certificate

active

06957061

ABSTRACT:
A method of authenticating mobile user equipment in a mobile telecommunications network comprising the steps of receiving an authentication element from a serving network (SN) to which the user equipment is not directly subscribed, extracting the authentication management field (AMF) from the authentication element, generating in response at least to a predetermined value of the authentication management field (AMF), a key set identifier (KSI), and passing the key set identifier (KSI) to the serving network (SN).

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