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OwnerKoki Hayashi, Toshikazu Maruyama +3inventors
InventorsKoki Hayashi, Toshikazu Maruyama, Satoko Fukushi, Toshiaki Yagami, Tomoya Arai
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The invention provides a communication continuation system for enabling the communication before handover to be continued after handover when a mobile node is moved from one network to another. The invention relates to a mobile node and a gateway for use in the communication in which the IP address of the mobile node is changed by handover, in which a connection management module for the mobile node and the gateway stores the connection information before handover for the mobile node, and associates it with the connection information after handover, thereby enabling the communication before handover to be continued after handover.
A communication system for enabling a mobile node residing in a first communication network to communicate via a gateway with a communication distant node, comprising connection information control means for exchanging the connection information before handover and the connection information after handover between said mobile node and said gateway, when said mobile node is moved to a second communication network.
A communication method for enabling a mobile node residing in a first communication network to communicate via a gateway with a communication distant node, comprising a connection information control step of exchanging the connection information before handover and the connection information after handover between said mobile node and said gateway, when said mobile node is moved to a second communication network.
A mobile node in a communication system for enabling said mobile node residing in a first communication network to communicate via a gateway with a communication distant node, comprising a network interface for mediating the communication with said first communication network, a user interface for mediating the communication with the user, and a control unit for controlling said interfaces, said control unit further comprising a program storing memory, in which said program storing memory stores a connection management module for exchanging the connection information before handover and the connection information after handover between said mobile node and said gateway, when said mobile node is moved to a second communication network.
A mobile node communication method for a mobile node in a communication system for enabling said mobile node residing in a first communication network to communicate via a gateway with a communication distant node, comprising a connection information control step of exchanging the connection information before handover and the connection information after handover between said mobile node and said gateway, when said mobile node is moved to a second communication network.
A gateway in a communication system for enabling a mobile node residing in a first communication network to communicate via said gateway with a communication distant node, comprising a mobile node network interface for mediating the communication with a third communication network on the side of said mobile node, a communication distant node network interface for mediating the communication with a fourth communication network on the side of said communication distant node, and a control unit for controlling said interfaces, said control unit further comprising a program storing memory, in which said program storing memory stores a connection management module for exchanging the connection information before handover and the connection information after handover between said mobile node and said gateway, when said mobile node is moved to a second communication network.
A gateway communication method for a gateway in a communication system for enabling a mobile node residing in a first communication network to communicate via said gateway with a communication distant node, comprising a connection information control step of exchanging the connection information before handover and the connection information after handover between said mobile node and said gateway, when said mobile node is moved to a second communication network.
Dependencies are inferred from the claim text.