CDMA Network Performance Analyze Optimization

CDMA is a multiple access technology based on broad band spread frequency technique,it can support more mobile subscribers than GSM system in a determinate bandwidth. Now, China Unicom is building their CDMA network, the scale of network is becoming bigger and bigger. But at the same time with the progress of CDMA engineering, network provide rich voice and data services. The users on the network has not only meet the requirements of coverage, the network also requires stability, quality and efficiency, so this works at the same time, we have to actively cooperate with the operation of the market where the development of the network, network optimization was the work of the Even more importantit should cooperate with the market operation to develop the network, so the network optimization is gradually becoming very important.Network Optimization is a technique daily maintenance work, Related to mobile communications network in all its aspects, through the network planning, construction and maintenance ,and so on ,the person who should master a lot of basic theories, and put those theories into practice. Network Optimization is this kind of job, try to make the network's performance become the best one via analysis network status, modify the system parameters and network equipment. It is arranged as follows1)This paper introduces the trend of the CDMA network development characteristic and key technologies relating network optimization in theory.2) This paper introduces the ralating content about network optimization, including network optimization flow and method. Importantly,I analysed some problems about the Dropped Call, Handoff Failure and Access Failure that affect network performance , and brought out some kinds of situations for the concrete case.(3) Based on theoretic ,IT took some steps, such as driving test,the special analysis and optimization to main areas,CQT estimation and analysis on a large scale,dealing with some important problems about the repeater system and 1x digital operation and optimizing the system parameters and network equipment.The result indicated that the multifarious index was obviously upgraded, communication quality was improved, communication network reached the best running state.