(19)

(11)

EP 0 641 504 A1

(12)

(43) Date of publication: 08.03.1995 Bulletin 1995/10 (21) Application number: 94911336.0 (22) Date of filing: 15.03.1994

(51) International Patent Classification (IPC):  H04J 3/ 06( . ) H04W 88/ 08( . ) (86) International application number: PCT/SE1994/000224 (87) International publication number: WO 1994/022245 (29.09.1994 Gazette 1994/22)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE (30) Priority: 23.03.1993 US 19930035617 (71) Applicant: TELEFONAKTIEBOLAGET LM ERICSSON S-126 25 Stockholm (SE)	(72) Inventor: DJUPHAMMAR, H kan, Olov S-131 33 Nacka (SE) (74) Representative: Lövgren, Tage, et al  Telefonaktiebolaget L M Ericsson Patent and Trademark Department S-126 25 Stockholm S-126 25 Stockholm (SE)