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Direction-of-Arrival Measurement of Beamformed Millimeter Wave 5G Downlink Signals

: Wittig, S.; Schmieder, M.; Keusgen, W.; Inzunza, E.


Institute of Electrical and Electronics Engineers -IEEE-:
IEEE Radio and Wireless Symposium, RWS 2020 : 26-29 January 2020, San Antonio, Texas, USA, IEEE Radio and Wireless Week 2020
Piscataway, NJ: IEEE, 2020
ISBN: 978-1-7281-1120-9
ISBN: 978-1-7281-1119-3
ISBN: 978-1-7281-1121-6
Radio and Wireless Symposium (RWS) <2020, San Antonio/Tex.>
Radio & Wireless Week (RWW) <2020, San Antonio/Tex.>
Conference Paper
Fraunhofer HHI ()

In this paper, we investigate a method for measuring the direction-of-arrival (DoA) of beamformed millimeter wave downlink signals in 5G mobile radio networks. The proposed method exploits the downlink synchronization signal structure of millimeter wave base stations to employ a virtual uniform circular antenna array approach for spatial sampling. It provides information on the temporal and spatial characteristics of the major radio signal propagation paths on a per beam level. Results of experimental proof-of-concept measurements conducted in an operational 5G network deployment are presented.