The construction for coverage of China Mobile（CM） TD-LTE network was basically completed. However

owing to defect of higher frequency and poorer international compatibility

the CM network is now facing a series of network issues

such as insufficient network deepness coverage

incomplete network breadth coverage

insufficient uplink capacity and International roaming. In this article

with multidimensional estimate and analysis

such as the current status of network coverage

uplink transmission rate

support level of mobile terminal network capacity

international roaming and network interference

we propose that within fell off in usage of GSM frequency band

CM may refarm band source of GSM for LTE FDD. The research result can offer reference to the development strategy of LTE and GSM of CM.