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(11)

EP 4 022 925 A1

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(43) Date of publication: 06.07.2022 Bulletin 2022/27 (21) Application number: 20858732.9 (22) Date of filing: 26.08.2020

(51) International Patent Classification (IPC):  H04N 19/593(2014.01) H04N 19/176(2014.01) H04N 19/122(2014.01) H04N 19/11(2014.01) H04N 19/119(2014.01) (52) Cooperative Patent Classification (CPC): H04N 19/119; H04N 19/176; H04N 19/70; H04N 19/13 (86) International application number: PCT/CN2020/111338 (87) International publication number: WO 2021/037053 (04.03.2021 Gazette 2021/09)

(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: 27.08.2019 WO PCT/EP2019/072797 (71) Applicant: Huawei Technologies Co., Ltd. Longgang District Shenzhen, Guangdong 518129 (CN)	(72) Inventors: GAO, Han 80992 Munich (DE) ESENLIK, Semih 80992 Munich (DE) ALSHINA, Elena Alexandrovna 80992 Munich (DE) WANG, Biao 80992 Munich (DE) KOTRA, Anand Meher 80992 Munich (DE) (74) Representative: Grünecker Patent- und Rechtsanwälte PartG mbB  Leopoldstraße 4 80802 München 80802 München (DE)