METHOD AND SYSTEM FOR HANDOFF OF MOBILE NODE IN MOBILE COMMUNICATION SYSTEM SUPPORTING PROXY MOBILE INTERNET PROTOCOL

摘要

Disclosed is a way to solve a problem of an operation error, which may occur in transmitting a Binding Update (BU) or Registration ReQuest (RRQ) message for a mobile node to a home agent due to the fact that a PDSN supports a Proxy Mobile Internet Protocol (PMIP) for the mobile terminal and the corresponding mobile node supports a client mobile IP when there is the mobile node using the client mobile IP in a 3GPP2 mobile communication system supporting the PMIP, thereby enabling efficient communication.