Patent ID: 7113509
Filing Date: 2006-09-26
Classification: H04L,H04W

Abstract:
1. A communication system having a plurality of node devices for communicating with a terminal, said terminal may move among said plurality of node devices and register its location with said communication system, said location being an address of a destination node device accommodating said terminal, comprising: a location registering server for registering the location of said terminal; a node device that receives a packet destined for said terminal and transfers said packet to the destination node device when knowing the address of the destination node device, while otherwise transferring the packet to the destination node device by referring to the location registering server; and a transfer sequence; wherein when the node device does not know the address of the destination node device, the received packet is transferred to the destination node device by the node device forwarding the received packet to the location registering server which forwards the packet to the destination node device by referring to a location registering table.