In recent years

with the rapid growth of 4G subscribers

the commercial use of VoLTE and the largescale construction of D

F

E

this had created conditions for different types of services to be carried on different networks. By studied on VoLTE and data service bearer policies in the D+F dual-layer network mode

this paper proposes a steering policy based on service handover. By assigning the VoLTE service to a fi xed frequency and confi guring the corresponding parameters

the voice and data services steering can be implemented successfully

at the same time

the perception of user’s voice service will also be greatly improved.