Patent · US Active

Mobile communication method and access router

US8155085B2 · kind B2 · utility

0Cited by

1References

4Claims

0Family size

Assignee

PANASONIC HOLDINGS CORPORATION · JP

Inventors

Tetsuya Kawakami · Hitachi, JP
Genadi Velev · Darmstadt, DE
Jon Schuringa · Langen, DE

Key dates

Filing date	Jul 26, 2007
Grant date	Apr 10, 2012
Priority date	—
Expiry date	Feb 5, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04W88/005
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A technology is disclosed in which, when a normal mobile node (that does not newly provide a dedicated function) is used, signaling for reconfiguring a tunnel during a mobile node movement is reduced and, furthermore, packet loss is reduced. In the technology, when an MN moves from under the control of an AR2 that is a movement origin to be under the control of an AR3 that is a movement destination, the AR3 receives an NS transmitted from the MN to the AR2. The AR3 that receives the NS destined to the AR2 transmits a “Location Update” to the AR2. The AR2 that receives the “Location Update” uses an MN management table of the relevant MN and creates “Prefix Information” and returns the “Prefix Information” to the AR3. A tunnel is established between access routers of the AR2 and AR3 through use of the “Prefix Information”, and a packet destined to the MN is transferred to the MN via the tunnel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.