Research On Voice Quality Optimization Of VoLTE Wireless Network

VoLTE is an IMS network-based LTE voice solution that transforms voice services from traditional circuit domains to data domains.VoLTE technology improves the experience satisfaction of communication users,shortens the time of call language parsing,makes the communication customer's business operation mode more flexible,has more powerful business ability,reduces the network cost,improves the spectrum utilization efficiency,and improves the network coverage scale.VoLTE business optimization is also faced with huge challenges due to its high timeliness,sensit ivity and complexity.How to ensure that VoLTE voice "receives quickly" and "hears clearly",reduce the duration of VoLTE-VoLTE connection,and cooperate with VoLTE voice service and data service are the difficulties and priorities of current optimization.This paper mainly analyzes and studies the quality of VoLTE voice service.Firstly,it expounds the basic principle,network structure and key technology of VoLTE,and summarizes the evaluation methods of VoLTE voice quality.Secondly,it studies and summarizes the problems affecting VoLTE voice quality,and puts forward relevant optimization methods.Thirdly,the VoLTE-VoLTE connection duration optimization is studied.Through the analysis of multi-dimensional clustering,different scenarios and signaling processes,the factors affecting the delay were confirmed.The optimization measures,such as wireless optimization for poor quality cell,keeping stable operation of business AS,IMS domain parameter tuning,EPC domain parameter tuning,wireless side parameter tuning,terminal optimization and business platform parameter optimization,are adopted to reduce VoLTE-VoLTE connection delay and improve user perception.Finally,the collaborative optimization of VoLTE voice and LTE data is studied to improve the quality of VoLTE voice service and balance the quality of LTE data service to achieve the goal of collaborative optimization through the study of service,performance and resources.Find out the difference and performance inflection point between voice service and data service,balance data service while VoLTE voice quality improves,make data service quality remain unchanged to a certain extent to achieve dynamic balance between them,and achieve the purpose of improving customer perception.