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(11)

EP 3 912 425 A1

(12)

(43) Date of publication: 24.11.2021 Bulletin 2021/47 (21) Application number: 20869250.9 (22) Date of filing: 24.09.2020

(51) International Patent Classification (IPC):  H04W 74/08(2009.01) H04W 72/04(2009.01) H04W 74/00(2009.01) H04W 72/12(2009.01) (52) Cooperative Patent Classification (CPC): H04W 74/008; H04W 74/006; H04W 74/0833 (86) International application number: PCT/KR2020/012963 (87) International publication number: WO 2021/060874 (01.04.2021 Gazette 2021/13)

(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: 27.09.2019 CN 201910926080 28.10.2019 CN 201911032625 07.11.2019 CN 201911084041 20.12.2019 CN 201911327951 (71) Applicant: Samsung Electronics Co., Ltd. Suwon-si, Gyeonggi-do 16677 (KR)

(72) Inventors: XIONG, Qi Gyeonggi-do 16677 (KR) SUN, Feifei Gyeonggi-do 16677 (KR) WANG, Yi Gyeonggi-do 16677 (KR) YU, Bin Gyeonggi-do 16677 (KR) (74) Representative: Nederlandsch Octrooibureau  P.O. Box 29720 2502 LS The Hague 2502 LS The Hague (NL)