University of Oulu

Matinmikko M., Roivainen A., Latva-aho M., Hiltunen K. (2018) Interference Study of Micro Licensing for 5G Micro Operator Small Cell Deployments. In: Marques P., Radwan A., Mumtaz S., Noguet D., Rodriguez J., Gundlach M. (eds) Cognitive Radio Oriented Wireless Networks. CrownCom 2017. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 228. Springer, Cham

Interference study of micro licensing for 5G micro operator small cell deployments

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Author: Matinmikko, Marja1; Roivainen, Antti2; Latva-aho, Matti1;
Organizations: 1Centre for Wireless Communications (CWC), University of Oulu, Oulu, Finland
2Keysight Technologies Finland Oy, 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: Springer Nature, 2018
Publish Date: 2018-03-28


5G brings along very dense small cell deployments in specific locations such as hospitals, campuses, shopping malls, and factories. This will result in a novel 5G deployment scenario where different stakeholders, i.e., micro operators, are issued local spectrum access rights in the form of micro licenses, to deploy networks in the specific premises. This new form of sharing-based micro licensing guarantees that the local 5G networks remain free from harmful interference from each other and also protects potential incumbent spectrum users’ rights. It admits a larger number of stakeholders to gain access to the 5G spectrum to serve different vertical sectors’ needs beyond traditional mobile network operators (MNO) improving the competition landscape. We characterize the resulting interference scenarios between the different micro operators’ deployments and focus on the building-to-building scenario where two micro operators hold micro licenses in separate buildings in co-channel and adjacent channel cases. We analyze the resulting allowable transmit power levels of a base station from inside one building towards an end user mobile terminal inside another building as a function of the minimum separation distance between the two micro operator networks. Numerical results are provided for the example case of the 3.5 GHz band with different building entry losses characterizing the impact of propagation characteristics on the resulting interference levels. The results indicate that the building entry losses strongly influence the interference levels and resulting required minimum separation distances, which calls for flexibility in determining the micro license conditions for the building specific situation.

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Series: Lecture notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
ISSN: 1867-8211
ISSN-E: 1867-822X
ISSN-L: 1867-8211
ISBN: 978-3-319-76207-4
ISBN Print: 978-3-319-76206-7
Volume: 228
Pages: 264 - 275
DOI: 10.1007/978-3-319-76207-4_22
Host publication: Cognitive Radio Oriented Wireless Networks. CrownCom 2017
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was supported by Tekes – the Finnish Funding Agency for Innovation in MOSSAF (Multi-Operator Spectrum Sharing for Future 5G Networks) and uO5G (Micro-Operator Concept for Boosting Local Service Delivery in 5G) projects.
Copyright information: © ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2018. This is a post-peer-review, pre-copyedit version of an article published in Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. The final authenticated version is available online at: