Patent ID: 8477729

Claim:
A method for registration of a mobile node comprising: receiving a registration request message at a local mobility anchor relating to the mobile node connected to a first foreign network, the registration request message including a mobile node identifier, an access type identifier that indicates a communication access type used to connect to the mobile node, a handover indicator that specifies whether the registration request message is associated with a handover to a new access type on the first foreign network or a handover to a second foreign network, and an interface identifier that indicates a specific access interface being used to connect to the mobile node; creating an entry on a cache entry table depending on a comparison of the information received in the registration request message against information on the cache entry table associated with the local mobility anchor and whether the handover to the second foreign network is detected or the handover to the new access type on the first foreign network is detected; transmitting a registration response from the local mobility anchor with a network prefix depending on whether the handover to the second foreign network is detected or the handover to a new access type on the first foreign network is detected; and transmitting a revocation request message from the local mobility anchor to a mobile access gateway on the first foreign network with an expanded trigger information field to be used by the mobile access gateway to determine if network resources allocated to the mobile node should be revoked and if so, the manner of revoking the network resources that supported connectivity to the mobile node.