(19)

(11)

EP 1 665 693 A1

(12)

(43) Date of publication: 07.06.2006 Bulletin 2006/23 (21) Application number: 04784434.5 (22) Date of filing: 15.09.2004

(51) International Patent Classification (IPC):  H04L 25/03(1974.07) H04L 27/38(1990.01) H04L 27/26(1968.09) (86) International application number: PCT/US2004/030572 (87) International publication number: WO 2005/029798 (31.03.2005 Gazette 2005/13)

(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: 15.09.2003 US 503514 P (71) Applicant: INTEL CORPORATION Santa Clara, CA 95052 (US)	(72) Inventors: LIN, Jian San Jose, CA 95127 (US) TSUI, Ernest Cupertino, CA 95014 (US) (74) Representative: Denmark, James Christopher et al Harrison Goddard Foote, Orlando House, 11c Compstall Road Marple Bridge, Stockport SK6 5HH Marple Bridge, Stockport SK6 5HH (GB)