The design of radio network planning (RNP) is the basis of the construction of a wireless mobile network. The design level of network planning decides the future layout of a network. During network planning, the documents concerning base station distribution, channel assignment, and cell data must be outputted. And the major tasks involved are as follows: 1) Analyze carriers’ requirements on network coverage, capacity and quality. 2) Analyze the coverage and capacity features of the candidate mobile communication systems and bands, and then analyze the investment feasibility through estimating the network scale. 3) Decide the network structure and base station type based on further analysis. First analyze whether to construct a layering network according to user distribution, propagation conditions, city development plan and existed network conditions, and then analyze the sites within this area to decide whether to use omni antennas or directional antennas to meet the requirements on coverage and capacity. 4) Estimate the number of base stations Before estimating the number of base stations, estimate the coverage distance of base stations of various types in various coverage areas.