Unlock instant, AI-driven research and patent intelligence for your innovation.

Communication method, communication system, mobile node and communication node

A technology of mobile node and communication method, applied in the field of communication system

Inactive Publication Date: 2009-09-16
PANASONIC CORP
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this regard, in (1)-(3) as given above, a problem arises where multiple (3n) messages have to be transmitted, since the CoTi, CoT and BU messages will be transmitted to each of multiple CoAs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Communication method, communication system, mobile node and communication node
  • Communication method, communication system, mobile node and communication node
  • Communication method, communication system, mobile node and communication node

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0064] figure 1 is a schematic diagram to show the arrangement and messages in the first embodiment of the communication system according to the present invention, and, figure 2 The communication sequence of the first embodiment is shown. In a first embodiment, messages for each of CoTi (Care-of-Test-Init) and CoT (Care-of-Test) are delivered to multiple CoAs (care-of-addresses) , and collectively (Bulk BU) transmits a Bulk BU (Bulk Binding Update) message to the plurality of CoAs. exist figure 1 In , a mobile node (MN) 1 has two interfaces, and there are two CoAs. In this figure, only two pairs of CoTi messages and CoT messages are shown (ie, CoTi 1 and CoTi 2, and CoT 1 and CoT 2).

[0065] (1) CoTi (HoTi)

[0066] First, MN 1 generates a cookie K0 (home initialization cookie, Home InitCookie) for the home address, and a care-of init cookie (Care-of Init Cookie) K1[1] for each of the care-of addresses CoA[1]-CoA[n] ]-K1[n] each. Subsequently, MN 1 transmits a HoTi ...

no. 2 example

[0113] Next, refer to image 3 and Figure 4 , a description will be given about the second embodiment of the present invention. image 3 is a schematic diagram to show the arrangement and messages in the second embodiment of the communication system according to the present invention, and Figure 4 is a diagram to show the communication sequence in the second embodiment. In the second embodiment, the CoTi and CoT are transmitted as a batch message, and the BU message is transmitted to each CoA individually.

[0114] (1) CoTi (HoTi)

[0115] First, MN 1 generates each cookie K0 (home initialization cookie) for the home address, and each cookie K1[1]-K1[n] (hand-of-initialization cookie) for care-of indivual. Subsequently, MN 1 transmits a HoTi message containing cookie K0 to CN 3 via HA 2, and directly transmits a batch of CoTi messages containing cookies K1[1]-K1[n] and CoA[1]-CoA[n]. The source addresses of the packets of the bulk CoTi message are the addresses represe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A technology is disclosed to reduce the number of messages in the case of an RR (Return Routability) procedure to carry out authentication between a mobile node (MN) and its partner communication node (CN). According to the technology, a CN3 receives a plurality of CoTi messages transmitted from each of a plurality of interfaces in an MN1, generates each signature token for each of a plurality of care-of addresses, and transmits each signature token in each of a plurality of the CoT messages to an MN. The MN generates a key common to a plurality of the care-of addresses by using each signature token in a plurality of the CoT messages, generates an authentication code common to a plurality of the care-of addresses by using the common key, and transmits a bulk binding update message including a plurality of the care-of addresses and the common authentication code to a CN. The CN authenticates the authentication code for a plurality of the care-of addresses in the bulk binding update message. Further, it transmits CoTi and CoT with bulk messages and individually transmits a BU message to every CoA.

Description

technical field [0001] The present invention relates to a communication method according to which a counterpart communication node authenticates a mobile node having a plurality of interfaces, and wherein a care-of address is assigned to each of the plurality of interfaces. The invention also relates to a communication system, a mobile node and a communication node based on the communication method as described above. Background technique [0002] According to the standard MIPv6 (non-patent document 1), the RR (Return Routability, return routing) process is disclosed as a method for authentication, by which the peer communication node (CN) authenticates the mobile node ( MN). The RR of MIPv6 includes the prevention of illegal redirection through the test about HoA, and the confirmation of reachability through the test about CoA. [0003] On the other hand, according to Monami6 (Mobile Node and Multiple Interfaces in IPv6), various proposals are made for the case where a mo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/04H04W12/06H04L29/06H04L9/08H04L9/32H04L12/70H04L12/701H04W8/08H04W8/14H04W28/06H04W80/04
CPCH04L2209/80H04L9/32H04L63/126H04L63/0869H04L9/0833H04W8/082H04L9/3247H04W80/04H04L9/0805H04W8/14H04W28/06
Inventor 荒牧隆阿相启吾
Owner PANASONIC CORP