China Mobile has built the largest TD-LTE network in the world. The main problems facing the network operation are the deep coverage and wide coverage of special scenes such as "three high and one limit" and the vast area of rural areas. Based on the framework of converged network
this paper discusses the possibility of using LTE FDD technology to solve the above problems with TD-LTE. This paper fi rst discusses the problems that need to be solved urgently in China Mobile 4 G network
and then analyzes the technical features of LTE FDD and the advantages of solving the above problems. Then the solution of specifi c scene is analyzed one by one. Finally
the specifi c suggestions for the next step of testing and verifi cation are provided when the policy is permitted.