(19)

(11)

EP 1 224 707 A1

(12)

(43) Date of publication: 24.07.2002 Bulletin 2002/30 (21) Application number: 00966630.6 (22) Date of filing: 18.09.2000

(51) International Patent Classification (IPC)7: H01P 3/08 (86) International application number: PCT/SE0001/805 (87) International publication number: WO 0120/707 (22.03.2001 Gazette 2001/12)

(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: 16.09.1999 SE 9903315 (71) Applicant: Telefonaktiebolaget L M Ericsson (Publ) 126 25 Stockholm (SE)	(72) Inventor: SHOU, Shu-Ang S-125 51 Älvsjö (SE) (74) Representative: Rosenquist, Per Olof  Bergenstrahle & Lindvall AB,P.O. Box 17704 118 93 Stockholm 118 93 Stockholm (SE)