Track 3: 5G Infrastructure Preparedness

Propagation Modeling and Infrastructure Planning for 5G Networks

September 26, 2019 8:00 AM - 9:00 AM

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Kai Seim



The construction of a mobile network is complex and not feasible without professional planning. Mobile propagation characteristics depend on a variety of factors in diverse geographies: i.e. propagation within cities with a high density of buildings and people will clearly differ from rural and agricultural areas with less disturbance factors. This is due to the varying diffraction and reflection characteristics of the prevailing land use type. Additionally, different frequencies have extremely different propagation characteristics. This is especially true for high spectrum frequencies which have been recently auctioned for 5G use. We applied an advanced Hata-Okumura model to calculate the amount of base stations needed to completely cover a given area, taking into account different land use types and propagation characteristics of different frequencies. Using data from existing base stations, land cover and the propagation model, it is possible to calculate the cost using these newly allocated 5G spectrums. Furthermore, we are able to calculate the length of optical fiber needed and associated costs to assure the connectivity of all base stations. We will discuss the following: introduction of the methodologies used to determine the amount of base stations required when rolling out 5G; rules applied within the model and the specific software developed and used by seim and partner; first results on planning issues; and review how the calculated amount of base stations differs when changing only one factor within the category of land use types or the frequency.