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(11)

EP 3 977 744 A1

(12)

(43) Date of publication: 06.04.2022 Bulletin 2022/14 (21) Application number: 20832816.1 (22) Date of filing: 25.06.2020

(51) International Patent Classification (IPC):  H04N 19/70(2014.01) H04N 19/103(2014.01) H04N 19/119(2014.01) (52) Cooperative Patent Classification (CPC): H04N 19/119; H04N 19/70; H04N 19/176; H04N 19/105 (86) International application number: PCT/RU2020/050135 (87) International publication number: WO 2020/263132 (30.12.2020 Gazette 2020/53)

(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: 28.06.2019 WO PCT/RU2019/000468 (71) Applicant: HUAWEI TECHNOLOGIES CO., LTD. Shenzhen, Guangdong 518129 (CN)	(72) Inventors: ALSHINA, Elena Alexandrovna 80992 München (DE) RUFITSKIY, Vasily Alexeevich Shenzhen, Guangdong 518129 (CN) FILIPPOV, Alexey Konstantinovich Shenzhen, Guangdong 518129 (CN) (74) Representative: Grünecker Patent- und Rechtsanwälte PartG mbB  Leopoldstraße 4 80802 München 80802 München (DE)