This paper analyzed the rapidly growing data fl ow demand of TD-LTE user on the side of operators. In this context

it was imperative to launch the unlimited plans. However

it would inevitably have a huge impact and pressure on the network. What’s more

it can even lead to congestion and even a partial paralysis of the network. To avoid this situation effectively

this paper estimated three parts of scenario including PRB utilization factor

cell downlink self-service time

and user perception. Combined with the network data

the capacity expansion lists and scales could be fi gured out accurately to support the operators getting ready for the capacity expansion reserve of wireless carriers and transmission links. As the result

the 4 G network pressure is going to be eased.