University of Oulu

K. Hiltunen, M. Matinmikko-Blue and M. Latva-Aho, "Interference Between 5G Indoor Micro Operators Utilizing Beamforming and Dynamic TDD in 26 GHz Band," 2019 IEEE Wireless Communications and Networking Conference (WCNC), Marrakesh, Morocco, 2019, pp. 1-6. doi: 10.1109/WCNC.2019.8885704

Interference between 5G indoor micro operators utilizing beamforming and dynamic TDD in 26 GHz band

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Author: Hiltunen, Kimmo1; Matinmikko-Blue, Marja2; Latva-aho, Matti2
Organizations: 1Ericsson Research, Oy L M Ericsson Ab, Finland
2Centre for Wireless Communications (CWC), University of Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.5 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2019
Publish Date: 2019-12-20


Future 5G networks will increasingly target local small cell deployments complementing the coverage of the existing outdoor networks. Moreover, the establishment of building-specific high-quality 5G networks by different stakeholders through local spectrum availability has gained increasing attention and new concepts, such as the micro operator, have emerged. To make these kinds of local 5G networks a reality, feasible spectrum sharing models are needed, which calls for a thorough understanding of the impact of the inter-operator interference on the performance of the victim micro operator. This paper presents system simulation results evaluating the feasibility of the local 5G micro operator concept for a scenario where two uncoordinated micro operators, sharing the same channel in the 26 GHz band, have deployed their networks on the same floor. The obtained results indicate that such highly local deployment is feasible in the given band if the penetration loss of the wall separating the micro operators is at least equal to 57 dB, corresponding approximately to a 17 cm thick concrete wall. The required isolation between the operators depends highly on the deployment scenario and therefore, feasible operation is possible in some deployments even with lower wall penetration losses. This highlights the fact that the worst case inter-operator interference levels alone do not properly model the specifics of the co-existence scenario, and can lead to overly protective requirements regarding the channel assignments.

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Series: IEEE Wireless Communications and Networking Conference
ISSN: 1525-3511
ISSN-E: 1558-2612
ISSN-L: 1525-3511
ISBN: 978-1-5386-7646-2
ISBN Print: 978-1-5386-7647-9
Pages: 1 - 6
DOI: 10.1109/WCNC.2019.8885704
Host publication: 2019 IEEE Wireless Communications and Networking Conference (WCNC), 15-18 April 2019, Marrakesh, Morocco
Conference: IEEE Wireless Communications and Networking Conference
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: The research in the “Micro-operator concept for boosting local service delivery in 5G (uO5G)” project has been financially supported by Business Finland and by Academy of Finland 6Genesis Flagship (grant 318927).
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
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