Abstract: In order to better guide the follow-up network construction of TD-LTE and realize the accurate network construction on the premise of maximizing the investment benefit, scale of different scenes and different base station types and proportion of the flow rate are analyzed based on the running data of the present network, by combining the business development trend and target, flow and voice revenue as well as the financial statements Through the analysis of the data from project input, business income, operation cost and so on, and combining engineering economic rating model, the investment benefits of various scenes such as city, county, town, country, as well as various base stations, such as macro station, micro station, indoor distribution, and enlargement are explored Through analysis and comparison, suggestions for future investment direction and investment priorities of the studied company in TD-LTE network is given

Key words:  TD-LTE, scenes, types, investment benefit