(19)

(11)

EP 1 782 575 A1

(12)

(43) Date of publication: 09.05.2007 Bulletin 2007/19 (21) Application number: 04786235.4 (22) Date of filing: 26.08.2004

(51) International Patent Classification (IPC):  H04L 12/28(2006.01) H04L 12/24(2006.01) H04Q 7/38(2006.01) (86) International application number: PCT/EP2004/051918 (87) International publication number: WO 2006/021236 (02.03.2006 Gazette 2006/09)

(84) Designated Contracting States: DE GB (71) Applicant: NTT DoCoMo, Inc. Tokyo (JP)	(72) Inventor: PRASAD, Anand R. 80689 Muenchen (DE) (74) Representative: Betten & Resch  Patentanwälte, Theatinerstrasse 8 80333 München 80333 München (DE)