Along with the economical unceasing development, the communications system obtained the more and more widespread application. People set the more and more high request to the correspondence quality and the scope. This gave the correspondence operation business to propose the strict challenge.Network optimization is a key link to the operation of GSM systems. Our domestic mobile-communications are confronted with severe and rigorous challenges. On the one hand, in pace with the astonishing growth of telecommunication users, the network keeps expanding in scale. However, problems like want of frequency resources, the smaller coefficient of frequency reuse and more unwieldy network, bring about more and more troubles of increasingly diversified and complicated. Thus mere routine maintenance is not enough to provide high-qualified service for the broad mobile-communication users.On the other hand, as the competitions are keener, and to meet the higher demand of customers, the network operators are faced with some urgent and critical tasks and difficulties: how to run the network to its optimum, how to heighten the quality of telecommunications, how to improve the average service and utilization rate of system installations, etc.. Especially in China,“short cycle”and“speediness”are two peculiarities commonly existing in the GSM expanding capacity duration.
