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(11)

EP 3 673 696 A1

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(43) Date of publication: 01.07.2020 Bulletin 2020/27 (21) Application number: 18860891.3 (22) Date of filing: 28.09.2018

(51) International Patent Classification (IPC):  H04W 72/04(2009.01) H04L 5/00(2006.01) (86) International application number: PCT/KR2018/011501 (87) International publication number: WO 2019/066532 (04.04.2019 Gazette 2019/14)

(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 (30) Priority: 29.09.2017 KR 20170127698 17.11.2017 KR 20170154035 (71) Applicant: Samsung Electronics Co., Ltd. Suwon-si, Gyeonggi-do 16677 (KR)

(72) Inventors: OH, Jinyoung Suwon-si, Gyeonnggi-do 16677 (KR) KIM, Youngbum Suwon-si, Gyeonnggi-do 16677 (KR) KIM, Taehyoung Suwon-si, Gyeonnggi-do 16677 (KR) PARK, Sungjin Suwon-si, Gyeonnggi-do 16677 (KR) YEO, Jeongho Suwon-si, Gyeonnggi-do 16677 (KR) CHOI, Seunghoon Suwon-si, Gyeonnggi-do 16677 (KR) (74) Representative: Nederlandsch Octrooibureau  P.O. Box 29720 2502 LS The Hague 2502 LS The Hague (NL)