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(11)

EP 4 022 798 A1

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(43) Date of publication: 06.07.2022 Bulletin 2022/27 (21) Application number: 20760878.7 (22) Date of filing: 27.08.2020

(51) International Patent Classification (IPC):  H04B 7/185(2006.01) H04W 72/04(2009.01) (52) Cooperative Patent Classification (CPC): H04B 7/18519; H04B 7/1851; H04W 72/0453; H04W 28/24; H04W 16/14 (86) International application number: PCT/EP2020/074029 (87) International publication number: WO 2021/038012 (04.03.2021 Gazette 2021/09)

(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: 29.08.2019 EP 19194499 (71) Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. 80686 München (DE)	(72) Inventors: DANG, Thi Uyen Ly 91058 Erlangen (DE) HEYN, Thomas 91058 Erlangen (DE) RASCHKOWSKI, Leszek 91058 Erlangen (DE) ROHDE, Christian 91058 Erlangen (DE) HASSAN HUSSEIN, Khaled Shawky 91058 Erlangen (DE) (74) Representative: Pfitzner, Hannes et al Schoppe, Zimmermann, Stöckeler Zinkler, Schenk & Partner mbB Patentanwälte Radlkoferstraße 2 81373 München 81373 München (DE)