(19)

(11)

EP 1 454 424 A1

(12)

(43) Date of publication: 08.09.2004 Bulletin 2004/37 (21) Application number: 02789082.1 (22) Date of filing: 21.11.2002

(51) International Patent Classification (IPC)7: H04B 3/56 (86) International application number: PCT/SE2002/002130 (87) International publication number: WO 2003/044982 (30.05.2003 Gazette 2003/22)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 21.11.2001 SE 0103900 21.11.2001 US 332445 P (71) Applicant: Schneider Electric Powerline Communications AB 651 21 Karlstad (SE)	(72) Inventor: HANSEN, Ake S-653 51 Karlstad (SE) (74) Representative: Westman, Per Börje Ingemar et al Ström & Gulliksson IP AB,Lindholmspiren 5 417 56 Gothenburg 417 56 Gothenburg (SE)