GSM mobile communication network system is currently a public wireless digital transmission system which has most extensive coverage, the highest reliability,maximum capacity, and strong confidentiality. GSM communication system realizes data transmission in vehicle unit and the monitoring center. The performance of vehicle positioning system plays a very important role. LSPN is capable of making theoretical analysis. To study GSM communication module work mode and analyze the performance of mobile communication network,preliminary exploration with examples using real-time UML state machine and LSPN were presented.%GSM移动通讯网络系统是目前国内覆盖最广、可靠性最高、容量最大、保密性强的公共无线数字传输系统.GSM通信分系统在车载单元与监控中心之间进行数据传输,其性能优劣对车载定位系统起着十分重要的作用.结合实时UML状态机的直观、平台无关性特点和LSPN的理论分析能力,研究了GSM通信模块的工作模式,结合实例初步探索了该方法在移动通讯网络性能分析中的适用性.
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