Research And Realization Of Network Quality Monitor Equipment On Mobile Communication

As the development of mobile communication,the number of consumer in the mobile communication and the range of network coverage are increasing rapidly.For guarantee the network service quality,it becomes a very formidable and difficult matter that testing and monitoring the wireless network quality.There are several methods for testing and finding the bug of wireless network quality for mobile communication corporation and the third supervision development. Such as OMC data analysis,signal trace analysis,CQT network quality testing in the fixed area,DT manoeuvre testing and consumer complaints.All the methods can find some questions in the network,but they have many disadvantages that it is too late to find the problem and consume a lot of resource,so they can’t bring perfect economic effects and social returns for the mobile communication MSOs.For the disadvantage of traditional methods that high cost,low effect and it’s too late to find the bug,a new method and equipment for wireless network quality monitor is coming with the tide of fashion.The equipment can receives all the wireless network signals which come from the area it placed and monitors them at any time.The equipment can realizes voice communication which can give user the taste of voice phone by themselves,so reflects the voice service quality of the area monitored.It can bring about the data service quality testing.So it can incarnate all kinds of service quality of the area that the equipment placed.Chapter 1 of this thesis, first brings forward the necessity of wireless network quality monitor.Then discusses the evaluation indicators of wireless network quality monitor and how to monitor the network quality in any time. Chapter 2 leads into the network quality monitor equipment which is introduced in this thesis.The equipment can be divided into GSM and CDMA network quality monitor equipment according to the network it is monitoring.Then discuss the characteristic and function of the equipment respectively,such as monitoring the network signal in any time,producing and reporting of different warnings,call quality test of CQT and PESQ,data service testing. Chapter 3 introduces the realization of the network quality monitor equipment.Discusses the Scheme design of network quality monitor panel in detail.Such as choice of CPU-the most chip of the panel,how to use the voice chip-ISD4003,and introduces the design method of the embedded MODEM which is used for wireless communicaton between the OMC and the equipment of network quality monitor,such as EM200-used in the CDMA network and SIM700D-used in the GSM network quality monitor.And finally,it puts forward the problem and advice which are achieved in the process of designing and experiment. Chapter 4 describes the test situation of network quality monitor equipment concretely.It contains the establishment of test bench, acquisition of test data and Performance Analysis. Chapter 5 summarizes the whole thesis and gets the conclusion that the equipment can satisfy all requirements which come from every MSOs.Finally,as the development of 3G mobile communication in our country,the monitor for 3G network quality is imminent,and pus forward the design methodology.