METHOD FOR FAST HANDOVER AND AUTHENTICATION IN A PACKET DATA NETWORK

摘要

A method and access point (AP) for providing real-time service access to a user equipment in a packet data network. The AP receives an authentication information message from an authentication server. The authentication information message includes an identity of the UE involved in a real-time service with a corresponding node and information data for authenticating the UE at the AP. The AP detects that the UE enters the zone coverage of the AP and sends a puzzle from the AP to the UE. The AP further receives from the UE an answer for the puzzle and verifies the received answer for authenticating the UE at the AP. Afterwards, the UE is allowed to continue the real-time service with the corresponding node.