Techno-Economics Analysis Of RAN-Spectrum Sharing Scheme Use Sensitivity Analysis Method

The main problem faced by cellular operators in Indonesia is the cost of infrastructure investment which is very expensiv. Thus, a sharing infrastructure scheme is needed between cellular operators to reduce the Capex and Opex. In this thesis, the author will examine the feasibility of a 5G infrastructure core sharing (CN sharing) scheme for cellular operators in Indonesia using two aspects, namely technology and economy. From the technological aspect, the writer will analyze the capacity and coverage approach. The economic aspect is carried out to test the business feasibility of this RAN-frequency sharing scheme from the cellular operator's point of view. The research will be conducted in 2 types of areas, urban area (Banjarmasin City) and suburban area (Banjarbaru City) for 7 years ahead (2022-2028). Based on capacity and coverage planning, Banjarmasin city need 84 gNodeB and Banjarbaru city need 71 gNodeB. The results of the study show that the implementation of the RAN-spectrum sharing scheme can reduce Capex costs 50-67%. The most feasible scenario to be implemented from economical point of view is sharing 3 operators for economic parameter Net Present Value, Internal Rate of Return and Payback Period. Sensitivity Analysis show that the most sensitive parameter is Opex and the least sensitive parameter is interest rate.