Patent ID: 8306530

Claim:
A method for assigning a static mobile internet protocol address to a mobile node by an access node, the method comprising: receiving a mobile registration request message at the access node transferred from a mobile node; sending an access request message to an authorization node, in response to the registration request; receiving an access accept message from the authorization node in direct response to the access request message, wherein the access accept message comprises a static mobile internet protocol address associated with the mobile node; sending an access registration request message to a mobile network internet node, wherein the access registration request message comprises the static mobile internet protocol address; assigning the mobile node the static mobile internet protocol address at the mobile network internet node; sending a mobile access registration request message associated with the mobile registration request message to the mobile network internet node at a time after the access registration request message has been sent; receiving a mobile access registration reply message at the access node transferred from the mobile network internet node, wherein the mobile access registration reply message comprises the static mobile internet protocol address; sending a mobile reply registration message to the mobile node transferred from the access node, wherein the mobile reply registration message comprises the static mobile internet protocol address; wherein the time after the access registration request message has been sent is sufficient to ensure that the registration request arrives at the mobile network internet node after the mobile access registration request message; wherein the assigning the mobile node the static mobile internet protocol address comprises creating a binding at the mobile network internet node, wherein the binding comprises the static mobile internet protocol address; and wherein the mobile node is a node in a radio access network.