(19)

(11)

EP 3 673 665 A1

(12)

(43) Date of publication: 01.07.2020 Bulletin 2020/27 (21) Application number: 18848494.3 (22) Date of filing: 17.08.2018

(51) International Patent Classification (IPC):  H04N 21/4728(2011.01) H04N 21/2343(2011.01) H04N 19/85(2014.01) H04N 21/218(2011.01) H04N 19/167(2014.01) H04N 19/119(2014.01) (86) International application number: PCT/FI2018/050587 (87) International publication number: WO 2019/038473 (28.02.2019 Gazette 2019/09)

(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: KH MA MD TN (30) Priority: 24.08.2017 FI 20175757 (71) Applicant: Nokia Technologies Oy 02610 Espoo (FI)	(72) Inventor: HANNUKSELA, Miska 33610 Tampere (FI) (74) Representative: Nokia EPO representatives  Nokia Technologies Oy Karakaari 7 02610 Espoo 02610 Espoo (FI)