Telecommunications Network Infrastructure Co-Construction & Benefit-Cost Analysis

China has entered a new era of mobile Internet. Faced new round of Restructuring of telecom operators, and the situation of network large-scale construction start, it is must be addressed that how to reduce telecom duplication and improve infrastructure utilization. How to avoid the telecommunications infrastructure duplication represent by base station, how to scientifically assess the effectiveness of communication network sharing, how to properly implement the national telecommunications policy of telecommunications network infrastructure co-construction, It is a undoubted strategic issues faced by telecom operators under the new development situation.In this paper, author carry out field investigation and analysis, make the corresponding solution for telecom infrastructure sharing problem. This problem includes management, technology, security, maintenance and interest. The solutions support telecom operators in the telecom infrastructure sharing, cover areas of program management, engineering, construction and maintenance.At first, the thesis use comparative study to analyze and summarize the Practical experiences and emerging issues of the domestic and abroad telecommunications infrastructure sharing implementations. At second, Summarize China’s current problems of telecommunication network infrastructure sharing. Third, author use the telecommunications infrastructure cost sharing model, obtained telecom infrastructure sharing’s cost-benefit function, make recommendations for operators. Fourth, summarize five major ways of telecom infrastructure sharing, and analyze the strengths and weaknesses of each method. Fifth summarize the telecommunications infrastructure sharing issues, and through analyze the conclusion of Telecommunications infrastructure cost sharing model. Make proposals for effective implementation of the telecom infrastructure sharing.