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(11)

EP 3 874 771 A1

(12)

(43) Date of publication: 08.09.2021 Bulletin 2021/36 (21) Application number: 19879837.3 (22) Date of filing: 01.10.2019

(51) International Patent Classification (IPC):  H04S 3/00(2006.01) G10L 19/038(2013.01) G10L 19/24(2013.01) G06F 16/22(2019.01) H04S 7/00(2006.01) G10L 19/008(2013.01) G06T 17/20(2006.01) (86) International application number: PCT/FI2019/050703 (87) International publication number: WO 2020/089509 (07.05.2020 Gazette 2020/19)

(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: 31.10.2018 GB 201817809 (71) Applicant: Nokia Technologies Oy 02610 Espoo (FI)	(72) Inventors: VASILACHE, Adriana 33580 Tampere (FI) JÄRVINEN, Kari 33200 Tampere (FI) LEPPÄNEN, Jussi 33580 Tampere (FI) PIHLAJAKUJA, Tapani 01300 Vantaa (FI) (74) Representative: Nokia EPO representatives  Nokia Technologies Oy Karakaari 7 02610 Espoo 02610 Espoo (FI)