It seems that in order to avoid delays in network construction and excessive costs, telecommunications operators’ previous experiences should be used to the greatest extent possible, as they have the most experience in terms of network security and reliability. They indicate that the challenge of choosing the optimal solution in terms of component and software solution providers for the 5G network is so complex and the reasoning about the challenges is so multi-threaded that a “drastically radical” scenario of completely eliminating some providers may be compiled and costly.
A more effective solution could be to apply greater detail in analyzing which elements of the network – in particular the core of the network – generate the most potential threat to security and are so complex and difficult to detect that the only solution is to limit the list of providers of these elements. We must remember that in Poland the quality of the existing 4G network is relatively very high, and the transition from 4G to 5G will be a gradual process. For the development of 5G, the existing 4G architecture will still be important for a long time and both networks will coexist. This operation will require precise planning by operators, and the possible “total bans” scenario of replacing already installed devices of some manufacturers with devices of other manufacturers would further complicate the situation by increasing costs and prolonging the time needed to build and launch the 5G network.
Given the complexity of the challenges and the importance of cost, building time and reliability of the 5G network, including the widely understood cyber security, telecommunications operators should have as broad a voice as possible in the discussion of possible scenarios of action – they are closest to practical solutions that can reduce or eliminate many of the risks indicated in this discussion.