Mobile node and communication control method
AssigneePanasonic Corporation
InventorsJun Hirano, Chan Wah Ng, Tien-Ming Benjamin Koh, Pek Yew Tan
Life of this patent
Estimating the term…
Abstract
A technology is disclosed for a mobile device with multiple interfaces to make use of its multiple interfaces capability with Mobile IP. According to this technology, MN (Mobile Node) 100 comprises a cellular interface to connect to the cellular network 112 and a Wireless-LAN interface to connect to the local network 122 and 132, and sends a Binding Update message to set the address of the Wireless-LAN interface to CoA (Care-of Address) to HA (Home Agent) at the cellular network or CN (Correspondent Node) 160. This Binding Update message includes a special label indication that the cellular interface is currently connected to the home network.
Claims10
A mobile node using a plurality of network interfaces, the plurality of network interfaces including a first network interface configured with a home address on a home network, and a second network interface configured with a care-of address on a foreign network, the mobile node comprising:
- a sending unit configured to send a message to a home agent via one of the plurality of network interfaces, the message including a home address option for setting the home address and an option having a care-of address field, to enable the home agent to transmit packets destined for the mobile node to one of the first network interface and the second network interface used by the mobile node;
- and
- a setting unit configured to set the home address into the care-of address field in the message.
A communication control method performed by a mobile node using a plurality of network interfaces, the plurality of network interfaces including a first network interface configured with a home address on a home network, and a second network interface configured with a care-of address on a foreign network, the communication control method comprising the steps of:
- sending a message to a home agent via one of the plurality of network interfaces, the message including a home address option for setting the home address and an option having a care-of address field, to enable the home agent to transmit packets destined for the mobile node to one of the first network interface and the second network interface used by the mobile node;
- and
- setting the home address into the care-of address field in the message.
Dependencies are inferred from the claim text.