H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/46 (2006.01) H04L 12/56 (2006.01) H04L 29/06 (2006.01) H04L 29/12 (2006.01) H04Q 7/24 (2006.01) H04Q 7/22 (2006.01)
Patent
CA 2170786
A communications network having a number of routers, a number of base stations and a number of mobile units maintains communications with the mobile units by assigning a unique address known to the routing entities of the network to each mobile unit. By including the mobile units unique address in topology updates of the network, the location of the mobile unit at any time is made known to all routers of the network. That is, once a mobile unit moves into a domain of a new access point and establishes a new link with the new access point, it uses the topology update mechanism of the network to make its new location known to all routers. Once a router of the network receives topology update information specific to the mobile unit's new location, it updates its routing table such that packets destined to the mobile unit are routed in a path which terminates at the mobile unit and contains its new access point.
Ahmadi Hamid
Bauchot Frederic Jacques
Bonnet Roselyne
Kessler Ilan
Krishna Arvind
International Business Machines Corporation
Saunders Raymond H.
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