Design And Implementation Of 5G Proxy Agent System In Communication Charging Service

With the advent of the 5G commercial era,in order to adapt to the 5G network architecture,major operators are actively promoting the upgrade of network services.Considering factors such as time and cost,it is the best choice to extend the support for5 G on the basis of the existing 4G communication charging service.The routing agent,as the access module of the communication charging service,can carry work such as protocol conversion,is the key part of 5G support.This thesis designs and implements5 G proxy agent system to enable communication charging services to support 5G networks,while improving overall service performance and service quality.The main research contents of this thesis include:(1)Proposing the overall design plan of 5G proxy agent system,which supports5 G network SBA architecture and has the ability to process 5G charging messages in HTTP format.(2)Designing and implementing the function pointer-based protocol conversion method FPPC,which provides good support for frequent data type conversion scenarios through conversion function reuse.At the same time,the grouping configuration supports different message field combinations after protocol conversion for different scenarios to meet the needs of multiple types of response messages in the communication charging service.(3)Proposing message routing method DTo MR based on the Diameter proxy agent,which dynamically adjusts multiple routing methods.It supports the message routing of synchronization,asynchronous and offline integration,and solves the problem of slow message response when the back-end system is busy in a single synchronous routing mode.The support for dynamic adjustment can improve efficiency and reduce operation and maintenance costs.(4)In response to the high load pressure of the back-end online charging service OCS,edge computing is introduced to reduce the burden of OCS.Proposing an edge computing method Edge OCS based on preprocessing and computing offloading,solve the problem of redundant information occupying bandwidth,and maximize the use of OCS.Edge OCS improves the overall performance of communication charging services.(5)Designing and implementing Regex Config,a configuration analysis module based on regular expressions,to solve the problem of tight coupling between the configuration analysis module and the configuration file format,and supports real-time loading configuration to enable configuration changes to take effect without restarting the program,reducing system restart times,and the stability of the service is improved.(6)Based on the above work,designing and implementing the 5G proxy agent system Http Proxy for communication charging services.Function,performance and stability tests have been carried out,and the experimental results show that the solution in this thesis is reasonable and effective.