(19)
(11) EP 1 759 494 A1

(12)

(43) Date of publication:
07.03.2007 Bulletin 2007/10

(21) Application number: 04739623.9

(22) Date of filing: 04.06.2004
(51) International Patent Classification (IPC): 
H04L 12/56(2006.01)
 H04L 29/06(2006.01)
(86) International application number:
PCT/EP2004/006072
(87) International publication number:
WO 2005/119978 (15.12.2005 Gazette 2005/50)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

(71) Applicant: Matsushita Electric Industrial Co., Ltd.
Osaka 571-8501 (JP)

(72) Inventors:
  • VELEV, Genadi
    64295 Darmstadt (DE)
  • KAWAKAMI, Tetsuya
    Yokohama, Kanagawa 234-0051 (JP)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Maximilianstrasse 58
80538 München
80538 München (DE)

   


(54) METHOD FOR UTILIZING THE SAME IP ADDRESS WHEN CHANGING FROM ONE SERVICE AREA INTO ANOTHER IN A MPLS BASED WIRELESS COMMUNICATION SYSTEM