Patent ID: 6868089
Filing Date: 2005-03-15
Classification: H04L,H04W

Abstract:
1. A communication method for a mobile terminal moving between networks, comprising the steps of: receiving a first message on a second network, when said mobile terminal has moved from a first network executing communications by using at least a first kind of protocol to said second network executing communications by using a second kind of protocol; detecting that said mobile terminal has moved to said second network, based on information included in said first message; acquiring a first address that complies with said second kind of protocol on said second network; creating a third message for requesting registration of said first address to said first movement assistance apparatus, said third message being compliant with said first kind of protocol; creating a second message by capsulizing said third message into a message that complies with said second kind of protocol; and transmitting said second message including said first address to a first movement assistance apparatus connected to said first network.