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(11)

EP 3 577 811 A1

(12)

(43) Date of publication: 11.12.2019 Bulletin 2019/50 (21) Application number: 18748717.8 (22) Date of filing: 17.01.2018

(51) International Patent Classification (IPC):  H04L 1/00(2006.01) H04W 72/12(2009.01) H04L 5/02(2006.01) H04W 72/08(2009.01) H04L 5/00(2006.01) (86) International application number: PCT/FI2018/050030 (87) International publication number: WO 2018/142020 (09.08.2018 Gazette 2018/32)

(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: MA MD TN (30) Priority: 03.02.2017 US 201762454180 P (71) Applicant: Nokia Technologies Oy 02610 Espoo (FI)	(72) Inventors: POCOVI, Guillermo 9000 Aalborg (DK) PEDERSEN, Klaus 9000 Aalborg (DK) STEINER, Jens 9270 Klarup (DK) SORET, Beatriz 9000 Aalborg (DK) (74) Representative: Nokia EPO representatives  Nokia Technologies Oy Karakaari 7 02610 Espoo 02610 Espoo (FI)