EPC Network Design And Deployment During The VoLTE Phase

With the rapid development of smart phone and Internet business and the promotion of large-scale business of LTE network,the business structure of telecom operators is constantly tilting towards data services.Data traffic business gradually takes the place of traditional voice and SMS,and plays an increasingly prominent role in promoting the growth of telecom business revenue.At the same time,with the gradual improvement of LTE network,VoLTE(Voice over LTE)as the final solution of mobile speech development is also put on the agenda of the operators' construction plan.In the VoLTE network,the core network EPC of the LTE network(Evolved Packet Core)serves as the IMS access network,providing the IP channel,which achieves the end to end full IP voice program,and provides the QoS protection which is different from the third party OTT and other data services.This means that EPC,in addition to carrying data traffic such as web browsing and downloading,also carries the most important voice calls to telecom operators.Therefore,in the VoLTE phase,the EPC network is very important to the business of VoLTE,and the needs of VoLTE must be fully taken into account in the construction of EPC network.The contents of this research are as follows:1.Through the survey of the development of the global mobile network,I analyze the network status of the telecom operators in G Province,and puts forward the necessity of the construction.2.This paper introduces the evolution of EPC network architecture and the characteristics of network structure,and introduces the basic principles and key technologies of EPC network from the aspects of EPC network networking architecture,network element function and interface function.Then it introduces the routing principle of EPC network.3.This paper combines the data traffic and VoLTE business requirements of F business area,through the engineering business model to calculate the capacity and interface bandwidth requirements.4.According to calculating the equipment capacity and interface bandwidth requirements,as well as the actual situation of network to complete the EPC network and the external network docking scheme,eventually provides the EPC network design and deployment scheme for a F business area of the telecom operators in G province,after the completion of the project,it will improve the ability of 4G users access,optimize network structure,promote the mobile business development of F region,and improve the quality of service..5.According to the network architecture of F business area,an optimization scheme is proposed to adjust the routing structure to end traffic as close as possible at the near end and reduce the network bandwidth occupancy.