(19)
(11) EP 1 856 880 A2

(12)

(43) Date of publication:
21.11.2007 Bulletin 2007/47

(21) Application number: 04791354.6

(22) Date of filing: 29.10.2004
(51) International Patent Classification (IPC): 
H04L 29/06(2006.01)
 H04L 29/08(2006.01)
(86) International application number:
PCT/EP2004/052738
(87) International publication number:
WO 2006/045345 (04.05.2006 Gazette 2006/18)
(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
Designated Extension States:
AL HR LT LV MK

(71) Applicant: NTT DoCoMo, Inc.
Tokyo (JP)

(72) Inventors:
  • KAPPES, Martin
    82205 Gilching (DE)
  • PREHOFER, Christian
    81477 Muenchen (DE)
  • WEI, Quing
    81735 Muenchen (DE)

(74) Representative: Betten & Resch 
Patentanwälte, Theatinerstrasse 8
80333 München
80333 München (DE)

   


(54) METHOD AND APPARATUS FOR SWITCHING BETWEEN DIFFERENT PROTOCOL IMPLEMENTATIONS