(19)

(11)

EP 1 832 023 A1

(12)

(43) Date of publication: 12.09.2007 Bulletin 2007/37 (21) Application number: 05822058.3 (22) Date of filing: 21.12.2005

(51) International Patent Classification (IPC):  H04J 3/16(2006.01) H04L 29/06(2006.01) H04L 12/56(2006.01) (86) International application number: PCT/KR2005/004420 (87) International publication number: WO 2006/068411 (29.06.2006 Gazette 2006/26)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 21.12.2004 KR 10200040109 (71) Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE Daejeon 305-350 (KR)	(72) Inventors: KIM, Dong-hoi Seoul 150-782 (KR) SONG, Pyeong-jung Daejeon-city 305-762 (KR) JUN, Kyung-koo Incheon-city 402-060 (KR) KANG, Seok-hoon Incheon-city 402-060 (KR) (74) Representative: Betten & Resch  Patentanwälte, Theatinerstrasse 8 80333 München 80333 München (DE)