(19)

(11)

EP 2 867 800 A1

(12)

(43) Date of publication: 06.05.2015 Bulletin 2015/19 (21) Application number: 12880097.6 (22) Date of filing: 29.06.2012

(51) International Patent Classification (IPC):  G06F 17/30(2006.01) (86) International application number: PCT/CN2012/077937 (87) International publication number: WO 2014/000280 (03.01.2014 Gazette 2014/01)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (71) Applicant: Nokia Corporation 02150 Espoo (FI)	(72) Inventors: ZOU, Jiaqi Beijing 100876 (CN) TIAN, Jilei Beijing 100120 (CN) (74) Representative: Nokia Corporation  Intellectual Property Department Karakaari 7 02610 Espoo 02610 Espoo (FI)