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Narrow Beam Channel Characteristics Measured on an 5G NR Grid-of-Beam Test-Bed
Ericsson Research.
Ericsson Research.
Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
Ericsson Research.
2018 (Engelska)Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Massive MIMO enabling dynamic beamforming is one key component in 5G New Radio (NR). Narrow beams improve capacity by reduced interference and extend coverage by increased antenna gain. One implementation of dynamic beamforming is Grid-of-Beams (GoB) with fixed narrow beams. In this study, the per beam characteristics are measured in a full-scale micro cell deployment with a mm-wave 5G NR test-bed. It is shown that the channel characteristics are strongly dependent on reflections captured within each beam. Channel conditions such as delay spread, singular value ratio and MIMO rank differ also between adjacent beams. Reflections may even cause significant path length difference which may call for individual synchronization per beam, e.g. meaning that beams at same transmission point may not always be considered quasi co-located (QCL)

Ort, förlag, år, upplaga, sidor
New York: Institute of Electrical and Electronics Engineers (IEEE), 2018.
Serie
IEEE Vehicular Technology Conference Proceedings, ISSN 1550-2252
Nationell ämneskategori
Annan elektroteknik och elektronik
Forskningsämne
Industriell elektronik
Identifikatorer
URN: urn:nbn:se:ltu:diva-70359DOI: 10.1109/VTCSpring.2018.8417474Scopus ID: 2-s2.0-85050995436ISBN: 9781538663554 (digital)OAI: oai:DiVA.org:ltu-70359DiVA, id: diva2:1238439
Konferens
87th IEEE Vehicular Technology Conference, VTC Spring 2018, Porto, Portugal, 3-6 June 2018
Tillgänglig från: 2018-08-13 Skapad: 2018-08-13 Senast uppdaterad: 2018-08-13Bibliografiskt granskad

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Lundberg, Oscar
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EISLAB
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