Patent ID: 8255540

Claim:
A method comprising: establishing, in a first part of a radio access system, a session between one of a plurality of mobile nodes and a second party via a first access node and a first mobility entity, wherein said first mobility entity is associated with a gateway node of at least two gateway nodes, and wherein said first access node and a second access node are associated with said plurality of mobile nodes within said first part and a second part of the access system; rerouting the session via said second access node in response to a movement of said one of said plurality of mobile nodes to said second part of the access system; storing, in said second access node, an identity of a preferred mobility entity of said second access node; checking, in said second access node, in response to a movement of said one mobile node from said first access node to said second access node, whether an identity of said first mobility entity and said stored identity of said preferred mobility entity match or not; and in response to said checking: maintaining a connection from said second access node to said first mobility entity if the identities match, and closing a connection from said second access node to said first mobility entity and opening a new connection to said preferred mobility entity if said identities do not match, and initiating macro mobility management registration.