Patent ID: 7463605
Filing Date: 2008-12-09
Classification: H04L,H04W

Abstract:
1. In a radio communication system having a network including a first part operable pursuant to a first operating protocol and a second part operable pursuant to a second operating protocol, and the radio communication system having a mobile node selectably operable pursuant to each of the first and second operating protocols and positionable to be resident with either of the first part and the second part, an improvement of apparatus for facilitating routing of a datagram to an appropriate one of the first part and the second part, said apparatus comprising: a detector operable to receive a mobile-generated message from the mobile node indicating residence of the mobile node within one of the first part and the second part of the network; a network-based identification broadcaster at least coupled to receive presence indication representative of residence of the mobile node with either of the first part and the second part of the network from said detector, and in response thereto, said network-based identification broadcaster for generating and simultaneously broadcasting to nodes other than the mobile node within both the first part and the second part of the network a broadcast message identifying the mobile node, the residence thereof with either of the first part and the second part of the network, and an address of a network element responsible for forwarding of the datagram to the mobile node within either of the first part and the second part of the network.