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EP 1 502 451 A1

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(43) Date of publication: 02.02.2005 Bulletin 2005/05 (21) Application number: 03715202.2 (22) Date of filing: 23.04.2003

(51) International Patent Classification (IPC)7: H04Q 7/20, H04Q 7/00 (86) International application number: PCT/IB2003/001520 (87) International publication number: WO 2003/094541 (13.11.2003 Gazette 2003/46)

(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 PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 29.04.2002 US 375809 P 29.04.2002 US 375810 P 29.04.2002 US 375811 P 29.04.2002 US 375813 P 29.04.2002 US 375831 P 29.04.2002 US 375832 P 29.04.2002 US 375837 P 29.04.2002 US 375838 P (71) Applicant: Nokia Corporation 02150 Espoo (FI)

(72) Inventors: SCHWARZ, Uwe FIN-02880 Veikkola (FI) MUSZYNSKI, Peter FIN-02630 Espoo (FI) RIKKINEN, Kari Surrey, GU 15 2DR (GB) (74) Representative: Eisenführ, Speiser & Partner  Patentanwälte RechtsanwältePostfach 10 60 78 28060 Bremen 28060 Bremen (DE)