(19)

(11)

EP 3 791 625 A1

(12)

(43) Date of publication: 17.03.2021 Bulletin 2021/11 (21) Application number: 18728519.2 (22) Date of filing: 08.05.2018

(51) International Patent Classification (IPC):  H04W 36/36(2009.01) H04W 72/04(2009.01) H04W 16/28(2009.01) H04W 36/08(2009.01) (86) International application number: PCT/EP2018/061832 (87) International publication number: WO 2019/214806 (14.11.2019 Gazette 2019/46)

(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: MASOOMZADEH-FARD, Ali Marlboro, New Jersey 07746 (US) CHEN, Tai-Ann Livingston, New Jersey 07039 (US) (74) Representative: Nokia EPO representatives  Nokia Technologies Oy Karakaari 7 02610 Espoo 02610 Espoo (FI)