(19)

(11)

EP 3 932 053 A1

(12)

(43) Date of publication: 05.01.2022 Bulletin 2022/01 (21) Application number: 20769723.6 (22) Date of filing: 13.03.2020

(51) International Patent Classification (IPC):  H04N 19/103(2014.01) H04N 19/176(2014.01) (52) Cooperative Patent Classification (CPC): H04N 19/105; H04N 19/157; H04N 19/176; H04N 19/463; H04N 19/593 (86) International application number: PCT/CN2020/079098 (87) International publication number: WO 2020/182196 (17.09.2020 Gazette 2020/38)

(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: 14.03.2019 US 201962818686 P 10.04.2019 US 201962832231 P (71) Applicant: Huawei Technologies Co., Ltd. Shenzhen, Guangdong 518129 (CN)	(72) Inventors: KOTRA, Anand Meher 80992 Munich (DE) ESENLIK, Semih 80992 Munich (DE) WANG, Biao 80992 Munich (DE) CHEN, Jianle Santa Clara, California 95050 (US) GAO, Han 80992 Munich (DE) (74) Representative: Körber, Martin Hans  Mitscherlich PartmbB Patent- und Rechtsanwälte Sonnenstrasse 33 80331 München 80331 München (DE)