US 7,734,049 B2 · Data transmission method, user equipment and GPRS/EDGE radio access network

Abstract

The invention relates to a method for transmitting data between a GRPS/EDGE radio access network and user equipment of a mobile system, and to user equipment using the method, and to GERAN. In the method, the data to be transmitted is encrypted using an encryption algorithm at the transmitting end, the encrypted data is transmitted from the transmitting end to the receiving end, and the transmitted data is decrypted using an encryption algorithm at the receiving end. The used encryption algorithm is an encryption algorithm of the radio access network UTRAN employing the wideband code division multiple access method of the universal mobile telecommunications system, in which case the input parameters of agreed format required by the encryption algorithm are created on the basis of the operating parameters of the GPRS/EDGE radio access network GERAN.

Claims38

Dependent claims

A method in a mobile system, comprising:

encrypting data to be transmitted between a radio access network of a packet-switched time division multiple access mobile system and user equipment using an encryption algorithm at a transmitting end,
wherein an encryption algorithm of a radio access network of a wideband code division multiple access mobile system is used as the encryption algorithm, in which case input parameters of a format required by the encryption algorithm are created on the basis of operating parameters of the radio access network of the packet-switched time division multiple access mobile system and at least a counter parameter of the operating parameters is adapted depending on a protocol currently used.

Dependencies are inferred from the claim text.

Data transmission method, user equipment and GPRS/EDGE radio access network

Life of this patent

Data transmission method, user equipment and GPRS/EDGE radio access network

Life of this patent

Abstract

Claims38