(19)

(11)

EP 3 994 880 A1

(12)

(43) Date of publication: 11.05.2022 Bulletin 2022/19 (21) Application number: 20834895.3 (22) Date of filing: 29.06.2020

(51) International Patent Classification (IPC):  H04N 19/107(2014.01) H04N 19/503(2014.01) H04N 19/597(2014.01) H04N 19/174(2014.01) H04N 19/593(2014.01) H04N 19/70(2014.01) (52) Cooperative Patent Classification (CPC): H04N 19/107; H04N 19/503; H04N 19/70; H04N 19/174; H04N 19/593; H04N 19/597; H04N 19/96 (86) International application number: PCT/FI2020/050472 (87) International publication number: WO 2021/001600 (07.01.2021 Gazette 2021/01)

(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 Designated Validation States: KH MA MD TN (30) Priority: 01.07.2019 US 201962869241 P (71) Applicant: Nokia Technologies Oy 02610 Espoo (FI)	(72) Inventor: WANG, Limin San Diego, California 92130 (US) (74) Representative: Nokia EPO representatives  Nokia Technologies Oy Karakaari 7 02610 Espoo 02610 Espoo (FI)