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(11)

EP 4 211 588 A1

(12)

(43) Date of publication: 19.07.2023 Bulletin 2023/29 (21) Application number: 20955755.2 (22) Date of filing: 30.09.2020

(51) International Patent Classification (IPC):  G06F 21/78(2013.01) (52) Cooperative Patent Classification (CPC): G06F 21/57 (86) International application number: PCT/CN2020/119574 (87) International publication number: WO 2022/067731 (07.04.2022 Gazette 2022/14)

(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: REVADIGAR, Girish Shivalingappa Shenzhen, Guangdong 518129 (CN) WEI, Zhuo Shenzhen, Guangdong 518129 (CN) LI, Zhen Shenzhen, Guangdong 518129 (CN) ZHANG, Mingming Shenzhen, Guangdong 518129 (CN) OU, Gangyan Shenzhen, Guangdong 518129 (CN) (74) Representative: Gill Jennings & Every LLP  The Broadgate Tower 20 Primrose Street London EC2A 2ES London EC2A 2ES (GB)