(19)

(11)

EP 1 119 947 A1

(12)

(43) Date of publication: 01.08.2001 Bulletin 2001/31 (21) Application number: 99945637.9 (22) Date of filing: 10.09.1999

(51) International Patent Classification (IPC)7: H04L 12/46 (86) International application number: PCT/US9920/811 (87) International publication number: WO 0021/249 (13.04.2000 Gazette 2000/15)

(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: 05.10.1998 US 166753 (71) Applicant: MOTOROLA, INC. Schaumburg, IL 60196 (US)	(72) Inventor: CALLAWAY, Edgar, Herbert, Jr. Boca Raton, FL 33428 (US) (74) Representative: Litchfield, Laura Marie et al Motorola European Intellectual Property Operations,Midpoint - Alencon Link Basingstoke, Hampshire RG21 7PL Basingstoke, Hampshire RG21 7PL (GB)