Research On SDP Key Technology In 5G Mobile Communication System

In the process of realizing the next mobile communication network(5G),Huawei proposed SONAC and MyNet for SDN technology.According to the needs of different network deployments and business needs,we use software to define the characteristics of wireless network control and data separation.With the matching of customized network services slice,to provide users with on-demand network services.In the network-based wireless custom network,in order to realize the flexible configuration and management of network service slices and customized data transmission,we can use the software to define the protocol stack(SDP)way,the traditional mobile communication network network function and The data transfer protocol stack is treated as a number of independent logical functional units.Therefore,SDN-based network slicing implementation will be a worthwhile research.This dissertation first analyzes the MyNet network and SONAC technology proposed by Huawei,and analyzes the function of SDP platform in MyNet network architecture.In order to realize the function of SDP service customization,this paper proposes to decouple the data link layer in the LTE protocol and make it modularize into a separate function module.Secondly,the dissertation analyzes the protocols and functions of MAC,RLC and PDCP in the data link layer,and makes the theoretical basis for the subsequent decoupling operation.Finally,the functional design of each sublayer is reconstructed from the code hierarchy analysis,including the re-design of the input and output.Through the design of the test scheme analysis,the decoupling scheme proposed in this dissertation can achieve the expected target.