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(11)

EP 3 234 775 A1

(12)

(43) Date of publication: 25.10.2017 Bulletin 2017/43 (21) Application number: 15869403.4 (22) Date of filing: 15.12.2015

(51) International Patent Classification (IPC):  G06F 11/08(2006.01) H04N 21/236(2011.01) H04L 29/06(2006.01) H04N 21/4402(2011.01) (86) International application number: PCT/FI2015/050885 (87) International publication number: WO 2016/097482 (23.06.2016 Gazette 2016/25)

(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 Designated Validation States: MA MD (30) Priority: 19.12.2014 US 201462094764 P (71) Applicant: Nokia Technologies Oy 02610 Espoo (FI)	(72) Inventors: MALAMAL VADAKITAL, Vinod Kumar 33720 Tampere (FI) HANNUKSELA, Miska 33610 Tampere (FI) (74) Representative: Nokia Corporation  Intellectual Property Department Karakaari 7 02610 Espoo 02610 Espoo (FI)