Patent ID: 8514805
Filing Date: 2013-08-20
Classification: H04L,H04W

Abstract:
1. A method of performing handover in a mobile node from a current Point of Attachment (PoA) to a new PoA, comprising: in a handover function layer, receiving subnet information from an information server for the new PoA before a handover in a lower layer is initiated; in the handover function layer, comparing subnet information for the current PoA with the subnet information for the new PoA; in the handover function layer, determining a layer selected from a plurality of layers in which a handover is performed, according to whether the subnet information for the current PoA matches the subnet information for the new PoA and sending a message for the handover to the determined layer before initiating a handover in the lower layer; and performing the handover in the determined layer, wherein performing of the handover in an upper layer comprises: