With the TD-LTE network construction continues to deepen

the rapid growth of user’s number and large flow video businesses bring a severe test to the network capacity

some hotspots even have been in urgent need of expansion.This paper is based on TD-LTE network data to analysis the key factors that impact of network expansion

and develop a carrier expansion model in line with the current network.Then

according to the model to calculate the current network‘s expansion results.Finally

introduction of the current network expansion program of engineering implementation plan.