The karst landform features brings about many problems to network construction in Yunnan

such as the difficulty in wireless network coverage and low investment efficiency. In allusion to such problems

the thesis proposes propriety strategy

system selection strategy and layered coverage strategy for network construction. Firstly

the thesis assesses and ranks the priorities of different grids from three dimensions including network flow

channel distribution and 3G terminal distribution. Then

it presents different construction strategies in accordance with different priorities. Meanwhile

based on the geomorphic features of the covering regions and market expectations

the thesis also elaborates the deployment schemes of the optimal frequency bands for each region and proposes to implement layered coverage in necessary scenes. The purpose is to guarantee the investment efficiency while increasing the coverage of wireless network in the regions of Yunnan featured with karst landforms.