(19)

(11)

EP 0 829 179 A1

(12)

(43) Date of publication: 18.03.1998 Bulletin 1998/12 (21) Application number: 96919926.0 (22) Date of filing: 30.05.1996

(51) International Patent Classification (IPC):  H04W 36/ 30( . ) H04W 36/ 38( . ) (86) International application number: PCT/GB1996/001280 (87) International publication number: WO 1996/038997 (05.12.1996 Gazette 1997/01)

(84) Designated Contracting States: FR GB (30) Priority: 30.05.1995 GB 19950010861 (71) Applicant: Hong Kong Telecom CSL LTD. Quarry Bay (HK)	(72) Inventor: LUI, Ying-chun Wanchai (HK) (74) Representative: White, Martin David  MARKS & CLERK, 57/60 Lincoln's Inn Fields London WC2A 3LS London WC2A 3LS (GB)