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CDMA Network Terminal Access Signal Quality Analysis And Promotion Strategy

Posted on:2019-09-26Degree:MasterType:Thesis
Country:ChinaCandidate:Y S ZhangFull Text:PDF
GTID:2428330548994892Subject:Electronic and communication engineering
Abstract/Summary:PDF Full Text Request
CDMA1X voice,1X data and EVDO data network have been developed and developed for a long time.The basic optimization is becoming more and more mature,the basic conditions of the network are constantly tamping,and the business has been continuously expanded.At the same time,with the continuous extension of breadth coverage and depth coverage,the continuous addition of the new base station,the constant change of traffic volume and traffic distribution,the new traffic conditions are changing,and it is gradually exposed that the network has poor basic data management,the parameter setting is not standard,the parameter setting of the multi load wave boundary area is unreasonable,and the service is not set up.The contradiction between expansion and insufficient capacity,the lack of depth of scenario specific optimization,and insufficient attention to key users.Lay a solid foundation for further development of the network,improve the strength of the network itself,and further optimize the network.This paper focuses on the quality of the access signal of the terminal in the CDMA network,that is,the quality of the Ec/Io is an important indicator of the quality of the CDMA wireless network,and is also one of the indicators that the telecom operators pay close attention to.Poor coverage of wireless signals,interference,and RF optimization do not lead to Ec/Io deterioration.In addition,the Ec/Io value is also related to the network load,the distribution of business users,and some parameters setting unreasonable.The purpose of optimizing the Ec/Io is to improve the quality of CDMA network and ensure the user's business perception.First of all,this paper introduces the basic principle of CDMA and describes the workflow of CDMA network optimization.Secondly,from the aspects of CDMA network terminal access signal quality analysis and strategy,the problem of call failure,soft handoff optimization,call drop problem,interference problem,coverage problem and voice quality are introduced.Starting from the signaling process of call setup,soft handoff and call release,the process of starting a call from start to finish is described.At the same time,it gives out how to locate and solve problems in the whole process,so as to ensure the quality of the network.Finally,taking the distribution of Harbin Ec/Io ratio as an evaluation basis,the corresponding terminal access signal quality analysis and strategy plan are customized.Through a large number of analysis and optimization,a large number of experimental data are collected,and it is proved that the corresponding strategies can enhance the quality of CDMA network.
Keywords/Search Tags:CDMA, Ec/Io, soft handoff, call drop, call failure
PDF Full Text Request
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