The Researching Of Cellular Phone In Spare Time Appearances Escaping From Network In The CDMA System

With the development of mobile communication system, people need it more than before. All of us hope we can communicate with each other at anytime and anywhere. However, if the mobile goes out of service, people won't communicate with each other normally and there will be lots of inconvenience. On the basis of this problem, this thesis provides the method to settle the mobile going in out-of-service in idle mode in CDMA system.This thesis introduces some common sense of CDMA. Because this is the study on the mobile in out-of-service in the idle mode, there are the detailed introductions about the operation process of initialization mode and idle mode. Channel contains forward channel and reverse channel. This thesis analyzes the process of the mobile going in out-of-service from the two channels, and finds the method to settle the problem of out-of-service based on different reasons, and then analyzes the logs. In a word, the communication quality of CDMA system can be improved to make the net work of CDMA better and better.