| In order to actively respond to the national call for education informatization,and to solve the problems of backward,limited and costly experimental equipment,old,rigid and inflexible experimental forms,and poor user autonomy in experimental operation,which does not reflect the key aspects of the experiment,this thesis optimizes the traditional mobile communication experimental mode through virtual simulation experiment.This thesis optimizes the traditional mobile communication experiment mode by virtual simulation experiment,and introduces the new5th-generation mobile communication technology(5G)to study and design the "virtual-real" innovative experimental teaching system,mainly as follows.Based on the analysis of the experimental teaching requirements of 5G virtual simulation experiments,the overall design of the system is formulated,the development platform and process of the system are sorted out,and the overall technical architecture of the system is built,the system is divided into two modules:system installation and system debug,and the technical architecture and operational principle are analyzed and elaborated respectively.Combining the characteristics of 5G network and the construction and implementation process of actual 5G engineering projects,the two modules of system installation and system debugging are designed in detail.In the system installation module,we firstly study the division of 5G network coverage area,analyze and summarize the experimental scenarios used in this system and simulate and design them;secondly,based on the typical 5G products of today’s mainstream communication equipment developers,we analyze their working principles,functional components and other aspects,and combine them with the interactive requirements of experiments to simulate and design the 5G network equipment involved in this system from the perspectives of appearance,structure finally,according to the different network transmission media,the association between the experimental scenarios is designed and defined in a unified way.In the system debug module,based on the reference and improvement of the interface features and management methods of the traditional backend network management software,and combined with the needs of students and teachers,the experimental management platform is designed mainly for managing the physical devices of the system installation module,while following the 3rd Generation Partnership Project(3GPP)standard.The experimental interface between 5G base station equipment and 5G core network equipment is designed in compliance with the 3rd Generation Partnership Project(3GPP)standard,including the equipment data configuration process and specific parameters before the interface,and the business logic judgment mechanism based on the Open System Interconnect(OSI)reference model after the interface.In order to meet the data management,storage requirements and operation needs of the system,the database supporting the two modules of the system for interactive feedback is designed in detail in accordance with the complete process from requirements analysis,conceptual structure design to logical structure design,and the classification and unified management of user experimental data is realized.The 5G virtual simulation experiment system is used to carry out 5G service convergence experiments in the university city to reflect the comprehensive design results of this thesis.Through a series of experimental links of scenario planning,network planning,equipment installation and connection,parameter planning,data configuration,and service verification,the simulated effect of the construction and implementation process of 5G engineering projects is completely demonstrated. |
PDF Full Text Request