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EP 3 956 999 A1

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(43) Date of publication: 23.02.2022 Bulletin 2022/08 (21) Application number: 20717708.0 (22) Date of filing: 16.04.2020

(51) International Patent Classification (IPC):  H04B 7/08(2006.01) H04B 1/707(2011.01) (52) Cooperative Patent Classification (CPC): H04B 7/086; H04B 2201/70715; H04B 1/7097; H04J 2011/0006; G01S 19/37; G01S 19/36; G01S 19/21; H04J 11/0023 (86) International application number: PCT/EP2020/060769 (87) International publication number: WO 2020/212529 (22.10.2020 Gazette 2020/43)

(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: 18.04.2019 EP 19170275 (71) Applicant: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. 80686 München (DE)

(72) Inventors: LANDMANN, Markus 91058 Erlangen (DE) VAN DER MERWE, Johannes Rossouw 91058 Erlangen (DE) SCHIRMER, Christopher 91058 Erlangen (DE) OVERBECK, Matthias 91058 Erlangen (DE) POPUGAEV, Alexander 91058 Erlangen (DE) RÜGAMER, Alexander 91058 Erlangen (DE) (74) Representative: Pfitzner, Hannes et al Schoppe, Zimmermann, Stöckeler Zinkler, Schenk & Partner mbB Patentanwälte Radlkoferstraße 2 81373 München 81373 München (DE)