Method and apparatus for exchanging data between a user equipment and a core network via a security gateway

摘要

The present invention concern a methods and an apparatus for exchanging data between a user equipment and a core network via a security gateway. The invention concerns the establishment of an inactive pair of tunnel mode security associations between the UE and the security gateway, as well as the application of the pair of security associations when the UE detects attachment to or need to attach to an untrusted access network.