(19)

(11)

EP 3 881 611 A2

(12)

(88) Date of publication A3: 18.06.2020 (43) Date of publication: 22.09.2021 Bulletin 2021/38 (21) Application number: 19884144.7 (22) Date of filing: 12.11.2019

(51) International Patent Classification (IPC):  H04W 52/02(2009.01) H04W 72/12(2009.01) H04W 72/04(2009.01) H04L 5/00(2006.01) (52) Cooperative Patent Classification (CPC): Y02D 30/70; H04W 52/02 (86) International application number: PCT/US2019/060846 (87) International publication number: WO 2020/102146 (22.05.2020 Gazette 2020/21)

(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: 13.11.2018 US 201862760346 P (71) Applicant: INTEL Corporation Santa Clara, CA 95054 (US)	(72) Inventors: XIONG, Gang Portland, Oregon 97229 (US) HE, Hong Sunnyvale, California 94087 (US) ZHANG, Yushu Beijing 100190 (CN) CUI, Jie Santa Clara, California 95054 (US) (74) Representative: Goddar, Heinz J.  Boehmert & Boehmert Anwaltspartnerschaft mbB Pettenkoferstrasse 22 80336 München 80336 München (DE)