Design And Realization Of Security Algorithm And Interface In LTE System Based On FPGA

In the broadband mobile communications,the popularity of intelligent terminals, anddata services of important background. LTE system will be large-scale commercialandwithin the next decade or longer time to become an important support for mobilecommunications.In this paper, the security function ofPDCP(Packet Data ConvergenceProtocol)sublayer is analyzed and studied, and the realization of security algorithm and itsinterface on FPGAis presented.First of all, the LTE structure,LTE system andLTE protocol are studied. Each layer ofLTE protocol is analyzed.The second chapter mainly describes the security function ofPDCP sublayer, and a detailed study ofconfidentiality and integrity process.The thirdchapter introduce two LTE security algorithm. One is SNOW3G algorithm, the other isZUC cipher algorithm.Next, the paper presentsthe FPGA realization of security function and the interface ofit. Thefourth chapter presentsa detailed design of the FPGA realization of the3GPPconfidentiality and integrity algorithms128-EEA3&128-EIA3. The fifth chapter presents adetailed design of Interfaces from10Gbps Ethernet to FPGA algorithm module. Then inthe sixth chapter, program of the fourth chapter and the fifth chapter is proposed by thesimulation analysis.This article highlights are:(1) Presents a detailed design of the FPGA realization ofthe3GPP confidentiality and integrity algorithms128-EEA3&128-EIA3.The throughput ofthe whole design remains it of ZUC algorithm.(2) The algorithm module can be attachedto high speed interfaces.(3) The design of interfaces solves the problem of connectionbetween10Gbps Ethernet and FPGA algorithm module.And the design can be put intoCCU in reality.