Method and device for performing a handover and communication system comprising such device

摘要

A method and a device are provided for performing a handover of a first instance from a first network to a second network, the method comprising the steps of (a) a security transfer message is sent to a second instance (HSS, AAA Server); (b) the second instance processes security parameters; and (c) the second instance initiates an authentication based on the security parameters processed.