Research And Implementation Of 4G Network Speech Solution

With China's own intellectual property rights of TD-LTE in the 4G era of rapid development,with the expansion of the scale of wireless network construction,4G Network technology has been widely used.The voice implementation of 4G network is more complex than 2G and 3G network,and in the actual network construction,it is difficult to ensure the construction of wireless network communication base station in the idealized planning location,often because of objective reasons can not be built in the planning location,the use of other flexible sub-optimal solutions to solve network coverage.Even if the base station can be built according to the plan,the wireless network environment will be significantly changed due to the occlusion of new high-rise buildings nearby.In addition,the northern region is cold in winter,the walls of buildings are thicker,and the frequency of 4G is higher,requiring more intensive construction of wireless networks.None of these factors can guarantee the construction of 4G network equipment into the net,can always reach a satisfactory level of 4G network voice services,the need for operators to continuously carry out systematic network optimization work.The idea of this study is to study the network optimization technology method of TD-LTE with practical work,so as to improve the network index to the target value.Firstly,this paper combs the background and significance of the research,introduces the development process of mobile communication technology,including the present situation,network architecture and key technology of the development of 4G mobile communication technology,and summarizes the problems of wireless network optimization coverage,interference,fault,connection,drop,switching and seven quality in view of the present situation of wireless network construction.Taking the present situation of the index of specific area in Harbin as the research basis,the target value of the optimization work of wireless network index is formulated.Aiming at the coverage problem,combing and verifying the standard parameters and scene parameters,focusing on the research and implementation of the optimization method of the typical scene,eliminates the network quality problem caused by the parameter standard setting problem,and achieves the effect of improving the typical scene coverage index.Aiming at the fault of each network element equipment,as well as the interference problem,combing the influence factors of each network element equipment in the communication process,through the obstacle solving and interference troubleshooting of each network element,the influence of the fault and interference problem on the network quality is reduced,and the effect of reducing the user's complaint is reduced.Aiming at four typical problems such as VoLTE connection problem,VoLTE drop problem,eSRVCC problem and speech quality problem in the process of voice call,combing and implementing the end-to-end optimization method and process,through the batch solution of the above typical problems,to improve the overall network quality of a specific region,Reaches the specified optimization target value.Finally,the paper summarizes the effect of this thesis,and looks forward to the subsequent optimization direction of wireless network.