Apparatus, and associated method, for facilitating local mobility management in a heterogeneous radio communication network
First Claim
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.
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Accused Products
Abstract
Apparatus, and an associated method for facilitating routing of a datagram sourced at a content source to a mobile node. The mobile node is selectably operable in a heterogeneous network having two or more network parts operable pursuant to different operating protocols. An ARP broadcast is generated either gratuitously or by proxy mechanism on behalf of the mobile by the GGSN, Access Router or by the Home Agent indicating the network element that is responsible for forwarding of datagrams to the mobile and thereby implying the network part with which the mobile node is resident. And, the datagram is forwarded from the gateway network to the network element that is responsible for forwarding of datagrams to the mobile node. The datagrams are then routed through the network part identified by the broadcast to be the network part with which the mobile node is resident.
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Citations
23 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. In a method for communicating 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 second part, an improvement of a method for facilitating routing of a datagram to an appropriate one of the first part and the second part, said method comprising:
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detecting with which of the first part and the second part of network the mobile node resides upon receipt of 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; and 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 and the residence thereof with either of the first part and the second part of the network in response to the mobile-generated message and wherein the broadcast message also identifies a link-layer address of a network element that is responsible for forwarding of datagrams to the mobile node within either of the first part and the second part of the network. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification