(19)

(11)

EP 1 661 322 A1

(12)

(43) Date of publication: 31.05.2006 Bulletin 2006/22 (21) Application number: 04780531.2 (22) Date of filing: 06.08.2004

(51) International Patent Classification (IPC):  H04L 12/28(1990.01) (86) International application number: PCT/US2004/025709 (87) International publication number: WO 2005/015848 (17.02.2005 Gazette 2005/07)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 08.08.2003 US 493937 P 15.12.2003 US 737142 (71) Applicant: INTEL CORPORATION Santa Clara, CA 95052-8119 (US)	(72) Inventors: LI, Qinghua Sunnyvale, CA 94087 (US) LIN, Xintian Mountain View, CA 94043 (US) HO, Minnie Los Altos, CA 94022 (US) STEPHENS, Adrian Cambridge, CB4 8TA (GB) (74) Representative: Dunlop, Hugh Christopher et al R.G.C. Jenkins & Co 26 Caxton Street GB-London SW1H 0RJ GB-London SW1H 0RJ (GB)