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(11)

EP 1 179 274 A1

(12)

(43) Date of publication: 13.02.2002 Bulletin 2002/07 (21) Application number: 00931862.7 (22) Date of filing: 18.05.2000

(51) International Patent Classification (IPC)7: H04Q 7/36, H04Q 7/38 (86) International application number: PCT/SE0000/984 (87) International publication number: WO 0072/618 (30.11.2000 Gazette 2000/48)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 21.05.1999 SE 9901846 (71) Applicant: Telefonaktiebolaget L M Ericsson (Publ) 126 25 Stockholm (SE)	(72) Inventors: STRÖBERG, Lars S-137 33 Karlskrona (SE) AKESSON, Christer S-371 38 Karlskrona (SE) KARLSSON, Robert S-371 30 Karlskrona (SE) (74) Representative: Karlsson, Leif et al Ström & Gulliksson AB P.O. Box 4188 203 13 Malmö 203 13 Malmö (SE)