(19)

(11)

EP 3 949 507 A1

(12)

(43) Date of publication: 09.02.2022 Bulletin 2022/06 (21) Application number: 19923126.7 (22) Date of filing: 29.03.2019

(51) International Patent Classification (IPC):  H04W 36/00(2009.01) (52) Cooperative Patent Classification (CPC): H04W 36/0072; H04W 36/08 (86) International application number: PCT/CN2019/080531 (87) International publication number: WO 2020/198978 (08.10.2020 Gazette 2020/41)

(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: Nokia Technologies Oy 02610 Espoo (FI)	(72) Inventors: XU, Xiang Beijing 100000 (CN) GODIN, Philippe 78000 Versailles (FR) WIGARD, Jeroen 9270 Aalborg (DK) (74) Representative: DREISS Patentanwälte PartG mbB  Friedrichstraße 6 70174 Stuttgart 70174 Stuttgart (DE)