(19)

(11)

EP 1 989 851 A2

(12)

(88) Date of publication A3: 01.11.2007 (43) Date of publication: 12.11.2008 Bulletin 2008/46 (21) Application number: 07705818.8 (22) Date of filing: 08.02.2007

(51) International Patent Classification (IPC):  H04L 27/38(2006.01) (86) International application number: PCT/IB2007/050412 (87) International publication number: WO 2007/096800 (30.08.2007 Gazette 2007/35)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 22.02.2006 CN 200610008891 (71) Applicant: NXP B.V. 5656 AG Eindhoven (NL)	(72) Inventor: QIAN, Xuecheng Redhill Surrey RH1 5HA (GB) (74) Representative: White, Andrew Gordon  NXP Semiconductors Intellectual Property Department Cross Oak Lane Redhill Surrey RH1 5HA Redhill Surrey RH1 5HA (GB)