Research And Implementation Of User Perception Analysis Module For 5G Road Tester

With the continuous development of networks,mobile communication technology and related industries are experiencing an unprecedented period of development.To accelerate the development of various new service application scenarios,the fifth generation mobile communication network(5G)has emerged.However,the huge wireless data traffic in the future may cause network quality optimization problems,so it is particularly important to develop a suitable 5G road tester for 5G network optimization and analysis.Relying on the major theme project of technological innovation and application development "R&D and application of 5G Road Tester" in Chongqing,this article designed each sub-module in detail based on the overall architecture of the user perception analysis module and used FDAHP-VC subjective and objective empowerment method to analyze the obtained indicator data.The main research work of this thesis is as follows:1.Firstly,the theoretical knowledge of 5G network architecture,5G NR protocol stack and related protocol process were briefly introduced.The system architecture of 5G road tester and the functional requirements of user perception analysis module were throughly analyzed,and the overall architecture design of user perception analysis module in the 5G road tester was proposed.2.Based on the overall design scheme of the module,the thesis designed and implemented each sub-module in the signaling processing layer in detail,including distribution storage,protocol decoding,signaling synthesis and index statistics.The distribution storage module used the transmission interface between the RRC layer and the lower protocol to complete the data interaction.The protocol decoding module analyzed the key fields and synthesis parameters in the message through simple decoding and detailed decoding.The signaling synthesis module adopted hash table to realize the classification processing of message process.The statistics module was used to obtain network indicators of relevant signaling.In addition,the user perception hierarchy model and mapping method were studied by the thesis.The subjectivity of user experience and the objectivity of network state were analyzed by using a subjective and objective empowerment method.3.The functions of protocol decoding and CDR synthesis in the user perception analysis module in the 5G road tester were verified,and the results illustrated that the decoding synthesis process is valid and accurate.The network basic performance was simply analyzed by obtaining the required statistical indicators.The FDAHP-VC method was used to complete the user perception analysis,which provided a reference value for the network optimizer to evaluate the network quality indicators that affect the user experience.At present,the user perception analysis module has been applied in the development of 5G road tester,which provided effective support for the maintenance and optimization of 5G network.