(19)

(11)

EP 0 824 834 A1

(12)

(43) Date of publication: 25.02.1998 Bulletin 1998/09 (21) Application number: 96915268.0 (22) Date of filing: 18.04.1996

(51) International Patent Classification (IPC):  H04W 76/ 02( . ) H04W 92/ 02( . ) H04W 88/ 16( . ) (86) International application number: PCT/SE1996/000507 (87) International publication number: WO 1996/035300 (07.11.1996 Gazette 1996/49)

(84) Designated Contracting States: DE FI FR GB SE (30) Priority: 05.05.1995 US 19950435807 (71) Applicant: TELEFONAKTIEBOLAGET LM ERICSSON 126 25 Stockholm (SE)	(72) Inventors: BARKER, Keith Hempstead Herts HP3 9NZ (GB) SHIRET, Peter, John Letherhead Surrey KT23 4DH (GB) (74) Representative: Norin, Klas, et al  Telefonaktiebolaget L M Ericsson Patent and Trademark Department 126 25 Stockholm 126 25 Stockholm (SE)