Patent ID: 6741704
Filing Date: 2004-05-25
Classification: H04W

Abstract:
A method of setting encryption for a connection in a radio system which comprises a plurality of mobile terminals, at least one switching center and at least one radio access network unit communicating with the switching center, the radio access network further comprising at least one control unit and, under its control, at least one base station, wherein commands are transmitted in the system using a plurality of protocol layers and wherein handling of encryption settings between the switching center and the base station in the radio system is carried out at different protocol layers than the handling of encryption settings of the mobile terminals, the method comprising the steps of:transmitting an encryption setting from the switching center to the control unit of the radio access network unit; encrypting the connection between the radio access network unit and the mobile terminal with the encryption settings, and transferring the encryption setting from the control unit to the mobile terminal transparently from the base station point of view.