Mobile communication control device for servicing a mobile node

• US 7,110,401 B2
• Filed: 06/28/2002
• Issued: 09/19/2006
• Est. Priority Date: 02/10/1992
• Status: Expired due to Fees

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Wada, Hiromi, Yozawa, Takashi, Ohnishi, Tatsuya
• Primary Examiner(s): Duong, Frank
• Application Number:
  US10/185,816
• Publication Number:
  US 20030007481A1
• Time in Patent Office: 1,544 Days
• Field of Search: 370328-339, 370/395.5, 370/395.52, 370465-467, 709/238, 709/242, 709/245
• US Class Current: 370/389
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 61/25 of the same type
• CPC Class Codes: H04L 61/2503 Translation of Internet protocol [IP] addresses
• CPC Class Codes: H04L 61/255 Maintenance or indexing of mapping tables
• CPC Class Codes: H04L 61/5007 Internet protocol [IP] addresses
• CPC Class Codes: H04L 61/5084 Providing for device mobility network addressing or numbering for mobility support in wireless networks H04W8/26; mobile IP H04W80/04
• CPC Class Codes: H04W 36/0011 for data sessions of end-to-end connection
• CPC Class Codes: H04W 36/0019 adapted for mobile IP [MIP]
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
• CPC Class Codes: H04W 60/00 Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/16 Gateway arrangements

Abstract

A home migration host position control device includes an address post processing unit that is capable of receiving an address post message from the mobile node when it migrates to a different network and is assigned a new temporary address. A home migration host list hold unit can store address information that correlates the temporary address with a home address that is contained in the address post message. A packet transfer unit that can, upon receiving a packet that is destined for the home address of the mobile node, transfer a capsulated packet that is generated by attaching to the received packet a header that indicates a destination address by a temporary address that is correlated with a home address according to address information that is stored in the home migration host list hold unit. The packet transfer unit when it receives from the mobile node a packet to which a header indicates a source address by a temporary address, can transfer a non-capsulated data packet that can be generated by removing the header from the received packet.

Claims

1. A home migration host position control device comprising:

(a) an address post processing unit that, when a mobile node migrates to a network and is assigned with a new temporary address, receives an address post message from the mobile node;

(b) a home migration host list hold unit that stores address information that correlates the temporary address with a home address that are contained in the address post message; and

(c) a packet transfer unit that, upon receiving a packet that is destined for the home address of the mobile node, transfers a capsulated packet that is generated by attaching to the received packet a header that indicates a destination address by a temporary address that is correlated with the home address according to the address information stored in the home migration host list hold unit.

2. The home migration host position control device of claim 1, wherein

the address post message includes a home address of the mobile node and the temporary address.

3. The home migration host position control device of claim 1, wherein

the address post message includes a flag that indicates a request for a response message that acknowledges that the address of the mobile node has been registered.

4. The home migration host position control device of claim 1, wherein

the address post message includes a sequence field for making a correspondence with a response message.

5. The home migration host position control device of claim 1, wherein

the address post unit transmits, in response to the address post message received from the mobile node, a response message to the mobile node to acknowledge a reception of the address post message.

6. The home migration host position control device of claim 5, wherein

the response message includes a field that indicates presence or absence of an error in registration of the address of the mobile node.

7. The home migration host position control device of claim 5, wherein

the response message includes a sequence field for making a correspondence with the address post message.

8. The home migration host position control device of claim 1, wherein

the home migration host list hold unit stores, in a binding cache, the temporary address in correspondence with the home address that are contained in the address post message.

9. The home migration host position control device of claim 1, wherein

the packet transfer unit, upon receiving a packet, transfers the received packet if an address stored in a home address field of the address information stored in the home migration host list hold unit matches a destination address of the received packet.

10. A home migration host position control device comprising:

(a) an address post processing unit that, when a mobile node migrates to a network and is assigned with a new temporary address, receives an address post message from the mobile node;

(b) a home migration host list hold unit that stores address information that correlates the temporary address with a home address that are contained in the address post message; and

(c) a packet transfer unit that receives from the mobile node a packet to which a header, which indicates a source address by a temporary address, has been attached, and transfers a noncapsulated data packet that is generated by removing the header from the received packet.

11. The home migration host position control device of claim 10, wherein

the address post message includes a home address of the mobile node and the temporary address.

12. The home migration host position control device of claim 10, wherein

the address post message includes a flag that indicates a request for a response message that acknowledges that the address of the mobile node has been registered.

13. The home migration host position control device of claim 10, wherein

the address post message includes a sequence field for making a correspondence with a response message.

14. The home migration host position control device of claim 10, wherein

the address post unit transmits, in response to the address post message received from the mobile node, a response message to the mobile node to acknowledge a reception of the address post message.

15. The home migration host position control device of claim 14, wherein

the response message includes a field that indicates presence or absence of an error in registration of the address of the mobile node.

16. The home migration host position control device of claim 14, wherein

the response message includes a sequence field for making a correspondence with the address post message.

17. The home migration host position control device of claim 10, wherein

the home migration host list hold unit stores, in a binding cache, the temporary address in correspondence with the home address that are contained in the address post message.

18. The home migration host position control device of claim 10, wherein

the packet transfer unit, upon receiving a packet, transfers the received packet if an address stored in a home address field of the address information stored in the home migration host list hold unit matches a destination address of the received packet.