University of Oulu

M. E. Leinonen, M. Sonkki, O. Kursu and A. Pärssinen, "5G mmW Receiver Interoperability with Wi-Fi and LTE transmissions," 2019 13th European Conference on Antennas and Propagation (EuCAP), Krakow, Poland, 2019, pp. 1-5.

5G mmW receiver interoperability with Wi-Fi and LTE transmissions

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Author: Leinonen, Marko E.1; Sonkki, Marko1; Kursu, Olli1;
Organizations: 1University of Oulu, Center of Wireless Communications, Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 1.1 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2019
Publish Date: 2019-11-27


New interoperability problems will arise, when 5G millimeter wave (mmW) radios will be integrated into mobile devices and small cell base stations with other radios. Current LTE (Long Term Evolution) and Wi-Fi radio transceivers have not been designed, verified or specified for simultaneous operation with 5G mmW radios. Wi-Fi or LTE-LAA (Licensed Assisted Access) may introduce co-channel interference due to the harmonics falling over 5G mmW frequencies. Alternatively, the fundamental LTE or Wi-Fi transmission may block the 5G mmW receiver. This paper studies requirements for RF filtering in the LTE and Wi-Fi radios, which operate in conjunction with a 5G mmW system. Antenna isolation measurements of 5G proof-of-concept (PoC) antenna array show that mmW antenna array resonates with multiple lower frequencies due to the antenna array physical dimensions, e.g. overall module dimensions, sub-array dimensions and sub-array locations from the edges of the antenna module. Thus, lower frequency interoperability is a new optimization criterion for dimensions of mmW antenna module. Measurement results verify that a previously developed 5G mmW PoC radio and antenna module operating at 28 GHz and LTE-LAA/Wi-Fi operating at 5 GHz as well as LTE at 2.7 GHz can operate simultaneously without interference problems within the same radio unit.

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Series: IEEE Proceedings of the European Conference on Antennas and Propagation
ISSN: 2164-3342
ISSN-L: 2164-3342
ISBN: 978-88-907018-8-7
ISBN Print: 978-1-5386-8127-5
Pages: 1 - 5
Host publication: 13th European Conference on Antennas and Propagation (EuCAP2019) 31 March-5 April 2019, Krakow, Poland
Conference: European Conference on Antennas and Propagation
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: The research leading to these results has received funding from the European Union H2020 5GPPP under grant n. 723247 and supported by the Institute for Information & communications Technology Promotion (IITP) grant funded by the Korea government (MSIP) (No.B0115-16-0001, 5GCHAMPION). The research has been partly funded by Business Finland project 5G Test Network Plus (5GTN+). Additionally, this research has been financially supported in part by Academy of Finland 6Genesis Flagship (grant 318927).
EU Grant Number: (723247) 5G CHAMPION - 5G Communication with a Heterogeneous, Agile Mobile network in the Pyunchang wInter Olympic competioN
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
Copyright information: © 2019 EurAAP/EuCAP. Published in this repository with the kind permission of the copyright owner.