(19)

(11)

EP 3 580 935 A1

(12)

(43) Date of publication: 18.12.2019 Bulletin 2019/51 (21) Application number: 18751348.6 (22) Date of filing: 23.01.2018

(51) International Patent Classification (IPC):  H04N 21/4728(2011.01) H04N 19/114(2014.01) H04N 19/36(2014.01) H04N 21/2343(2011.01) H04N 13/106(2018.01) (86) International application number: PCT/FI2018/050050 (87) International publication number: WO 2018/146376 (16.08.2018 Gazette 2018/33)

(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 TN (30) Priority: 13.02.2017 FI 20175117 (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)