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EP 3 932 047 A1

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(43) Date of publication: 05.01.2022 Bulletin 2022/01 (21) Application number: 19714146.8 (22) Date of filing: 21.03.2019

(51) International Patent Classification (IPC):  H04M 15/00(2006.01) G06F 16/25(2019.01) H04W 88/18(2009.01) H04L 12/24(2006.01) H04L 12/14(2006.01) H04W 8/18(2009.01) H04L 29/08(2006.01) H04W 4/24(2018.01) (52) Cooperative Patent Classification (CPC): H04M 15/00; H04L 12/1403; H04M 15/66; H04M 15/61; H04L 67/2823; G06Q 10/06; H04M 15/51; G06Q 50/32; H04L 12/1407; H04W 4/24; H04L 12/14; H04M 15/53 (86) International application number: PCT/EP2019/057140 (87) International publication number: WO 2020/177878 (10.09.2020 Gazette 2020/37)

(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: 01.03.2019 EP 19382158 (71) Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) 164 83 Stockholm (SE)	(72) Inventor: BARTOLOMÉ RODRIGO, Maria Cruz 28038 Madrid (ES) (74) Representative: Ericsson  Patent Development Torshamnsgatan 21-23 164 80 Stockholm 164 80 Stockholm (SE)