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EP 4 078 943 A1

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(43) Date of publication: 26.10.2022 Bulletin 2022/43 (21) Application number: 20911692.0 (22) Date of filing: 09.01.2020

(51) International Patent Classification (IPC):  H04N 5/232(2006.01) (52) Cooperative Patent Classification (CPC): H04N 5/2353; H04N 5/243; H04N 5/35554; H04N 9/04557; H04N 9/04555; H04N 5/378; H04N 5/2173; H04N 5/361 (86) International application number: PCT/CN2020/071160 (87) International publication number: WO 2021/138869 (15.07.2021 Gazette 2021/28)

(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 (71) Applicant: Huawei Technologies Co., Ltd. Shenzhen, Guangdong 518129, (CN)	(72) Inventors: BUSCH, Stephen Shenzhen, Guangdong 518129 (CN) ZHENG, Jianhua Shenzhen, Guangdong 518129 (CN) QU, Bing Shenzhen, Guangdong 518129 (CN) KOMARCEVIC, Milos Shenzhen, Guangdong 518129 (CN) SUN, Yamin Shenzhen, Guangdong 518129 (CN) (74) Representative: Roth, Sebastian  Mitscherlich PartmbB Patent- und Rechtsanwälte Sonnenstraße 33 80331 München 80331 München (DE)