The Research And Achievement Of Mobility Management Entity MME In Private Petroleum Communication Network Based On TD-LTE

With the development of technology, the production management for various industriesgradually changes into digital, intelligent direction in recent years. The mobile privatenetwork function of industry fields can not meet the development needs of existing industryapplications. The mobile private network communication system based on TD-LTE can meetthe communication needs in advanced technology and safety aspects of industry users with itstechnical advantages like high data rate, packet transmission, lower latency, wide-areacoverage, compatibility, etc. All these technical advantages provide a good developing chancefor communication network construction of petroleum industries which face the developingtrouble because of the outdated technology.On the basis of analyzing the development condition of domestic and foreign petroleumprivate network and comparing the wireless communication technologies which used inpetroleum private network, this paper has pointed out its communication features anddisadvantages of communication technology in petroleum private network, describes thetechnical characteristics and application advantages of TD-LTE at the same time. A newdesign project of wireless communication system in private petroleum communicationnetwork based on TD-LTE is proposed in this paper. Network architecture, equipments andfunction features of this system are described. This paper has designed the evolved packetcore of private network after comparing the difference between public network and privatenetwork.According to the communication model of TD-LTE, the paper has studied theachievement of MME in the private network and analyzed it from the view of application,protocol stack and interface relationships. Simultaneously, the MME working model has beenproposed. Moreover, the signaling achievement and code achievement of specific processes like handover process, route area updating process and authentication process have beendesigned and optimized. At the end, software transplantation and the combined debugging ofsoftware and hardware are completed in this paper.The experimental result has shown that the private petroleum communication systembased on TD-LTE can effectively achieve mobility management functions after integratingthe access network function and the oil network function, simplifying communicationfacilities and procotols, which will lay a solid foundation for the construction of the privatepetroleum communication network system.