Patent ID: 8027304
Filing Date: 2011-09-27
Classification: H04L,H04W

Abstract:
1. Method comprising: receiving a handover command from a source access point containing a target access point identifier and a source access point nonce, sending a handover confirm message to said source access point containing a mobile node nonce so that said source access point sends said source access point nonce and said mobile node nonce to said target access point along with a session key context during a handover of said mobile node from said source access point to said target access point wherein said session key context contains session keys secured for both said source access point and said target access point separately based on security associations between a gateway and the source access point and said target access point, receiving a system information message from said target access point containing said target access point identifier and a target access point nonce, sending a re-association request message to said target access point encrypted using a mobile node nonce as well as both said source access point nonce and said target access point nonce, receiving a re-association confirm message from said target access point encrypted using both said target access point nonce and said mobile node nonce, and receiving user plane buffered packets from said source access point via said target access point.