(19)

(11)

EP 2 165 495 A2

(12)

(88) Date of publication A3: 29.01.2009 (43) Date of publication: 24.03.2010 Bulletin 2010/12 (21) Application number: 08763241.0 (22) Date of filing: 06.06.2008

(51) International Patent Classification (IPC):  H04L 27/26(2006.01) H04L 1/00(2006.01) H04L 25/49(2006.01) H04L 5/00(2006.01) (86) International application number: PCT/IB2008/052245 (87) International publication number: WO 2008/149323 (11.12.2008 Gazette 2008/50)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 08.06.2007 US 933760 P (71) Applicant: Nokia Siemens Networks OY 02610 Espoo (FI)	(72) Inventors: PAJUKOSKI, Kari FIN-90240 Oulu (FI) TIIROLA, Esa FIN-90450 Kempele (FI) HOOLI, Kari FIN-90650 Oulu (FI)