analysis and solution

It displays a complete analysis and solution.Firstly, it introduces the basic conception and the development of the mobile communication. And it analyzes the current mobile communication situation, the importance of the network optimization and the dropped call study. Then it shows the conception and the program of the network optimization, and also shows common problems and solutions during the optimization. And then in the terms of signal processes and radio propagations, it deeply analyzes the causations of dropped mobile calls, such as frequency interference, systems' parameters, fault in the hardware, antennas, fault in the transport and repeaters. And it takes the topical examples of dropped calls in practice to show how to define and analyze the causations of dropped calls on the terms of interference including repeaters and frequency and CDMA tailing interference, power unbalance, island effect, handover parameters, and fault in hardware. And it also gives the relative solutions.Any way, solutions of dropped calls is a topic in the network optimization forever, with development of GSM network. It is very important to have the knowledge of signal processes, principle of the system, and the network parameters, in order to resolve dropped calls. The methods in this paper can instruct engineers to solve problems of dropped calls, and improve efficiency and mobile users' satisfactory, and improve the quality of the network and system stability.
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