Research On Volte Network Optimization And Improvement Measures

Today,with the rapid development of mobile communication business,4G network has become a network carrier for global operators to provide high-speed data services for customers,but 2G network and 3G network are still used in voice services.Voice over LTE technology emerges as the times require.Voice over LTE technology belongs to IP data transmission technology.Without using 2G and 3G networks,voice services can be directly linked to 4G networks,so that network data and voice services can be carried together in the same network.At this stage,volte technology has become mature,and operators around the world have begun to deploy volte technology to realize the use of 4G network and provide video and voice services for customers.In July 2016,China Mobile promoted the application of volte technology nationwide.How to continuously optimize the network and improve the service quality through technical means is an urgent problem to be solved in the subsequent network maintenance.Volte takes IMS and EPC as service control layer and carrier layer respectively,and realizes relevant functions through IMS domain terminal,circuit domain,wireless network and terminal technology to meet the requirements of IMS packet voice and multimedia services.Volte selects QoS level wireless bearer identification,voice coding(amr-web),SIP& SDP,robust packet head compression protocol(ROHC),semi continuous scheduling(SPS),esrvcc,etc.as the supporting technologies of volte service quality.At this stage,volte covers all provinces,cities and regions in the country.Based on the analysis of user perception,volte network calls often suffer from swallowing words,dropping calls,one-way traffic and other failures.In order to effectively improve the quality of volte network,it is urgent to propose a feasible network optimization scheme.This paper is based on the problems exposed in the process of volte technology networking.First of all,it introduces the background,research significance,domestic research status,foreign research status.Based on the development history of LTE network,this paper studies the technical background,technical advantages,network structure,key technical indicators,network call process and other dimensions.According to the current volte network user needs,determine the optimization direction in the later stage,judge the typical problems of the current wireless network,carry out in-depth research and analysis,and put forward solutions.Take a city as an example,objectively analyze and study the successful experience and cases of volte network optimization.Finally,the paper summarizes the content of the paper,analyzes the shortcomings of the optimization of volte wireless network,and puts forward the prospect of the future development of volte wireless network.This paper mainly analyzes the key technologies of volte network and the problems of volte network,and puts forward effective solutions.Through the comparative study of the index changes before and after the evaluation of network performance,the conclusion isdrawn,which proves that the scheme proposed in this paper can properly solve a series of typical problems of volte,especially the problems existing in the user end,and then comprehensively improve the quality of volte wireless network.This paper summarizes and analyzes the key indicators of the optimization of volte network,puts forward feasible solutions to meet the quality of voice services in volte and improve the user experience,which lays the foundation for the development of wireless network in the later stage.