(19)

(11)

EP 1 232 589 A1

(12)

(43) Date of publication: 21.08.2002 Bulletin 2002/34 (21) Application number: 00974524.1 (22) Date of filing: 13.11.2000

(51) International Patent Classification (IPC)7: H04B 17/00, G01S 11/00 (86) International application number: PCT/EP0011/188 (87) International publication number: WO 0104/1335 (07.06.2001 Gazette 2001/23)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 22.11.1999 US 447354 (71) Applicant: Telefonaktiebolaget L M Ericsson (Publ) 126 25 Stockholm (SE)	(72) Inventors: ATARIUS, Roozbeh Morrisville, NC 27560 (US) NILSSON, Johan S-217 73 Malmö (SE) (74) Representative: Vigars, Christopher Ian  Haseltine Lake & Co.,Imperial House,15-19 Kingsway London WC2B 6UD London WC2B 6UD (GB)