Conference Paper
BS class Minimal distance between BS
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| BS class
Minimal distance between BS and UE, m Carrier output power, dBm Wide Area 35 Not limited Medium Range
5 ≤ 47
Local Area 2 ≤ 33 III. 5G
BS P ROTOTYPING A. BS Requirements Currently there are two options for connecting fifth- generation base stations to the whole mobile network. A new cloud-based network can be deployed, either 5G BS should be connected to a 4G network (LTE or LTE Advanced Pro). From an economic point of view the more effective decision is to use the already existing infrastructure and connect the BS via the NG interface to the 4G network. In this case prototyping will require a 5G BS hardware prototype of the desired type and software implementation of the protocol for connecting via the NG interface. 5G BS prototype should meet the requirements listed in Tables 1, 2 and in Table 3 [4]. To test the 5G base stations worldwide 32 frequency bands within the FR1 are allocated. However to ensure electromagnetic compatibility regulatory acts in the radio frequency allocation in a particular country should be taken into account along with the impact of already existing radio communication systems. 5G BS prototyping in Russia will be possible in the frequency bands 4800–4990 MHz и 27.1–27.5 GHz for pilot 5G zones. For FR2 there are 3 bands totally from which one is available in Russia. By 2022 there are plans to convert the spectrum in the ranges of 694–790 MHz, 3.4–3.8 GHz, 4.4–5 GHz, 24.25–27.5 GHz in Russia [5].
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