(19)

(11)

EP 1 060 600 A1

(12)

(43) Date of publication: 20.12.2000 Bulletin 2000/51 (21) Application number: 99914471.0 (22) Date of filing: 01.03.1999

(51) International Patent Classification (IPC)7: H04L 27/20 (86) International application number: PCT/EP9901/401 (87) International publication number: WO 9945/681 (10.09.1999 Gazette 1999/36)

(84) Designated Contracting States: DE ES FI FR GB IT SE (30) Priority: 05.03.1998 GB 9804602 (71) Applicant: MOTOROLA GmbH 65232 Taunusstein (DE)	(72) Inventors: ROETTGER, Norbert D-56479 Waldmühlen (DE) HARENBERG, Kersten D-60433 Frankfurt (DE) KOENIG, Matthias D-65232 Taunusstein (DE) (74) Representative: Morgan, Marc et al Motorola European Intellectual Property Operations,Midpoint,Alencon Link Basingstoke,Hampshire RG21 7PL Basingstoke,Hampshire RG21 7PL (GB)