对铁路移动通信GSM-R与TETRA两种技术体制选择的思考

Thinking on Choosing of two Technology System of GSM-R and TETRA

ＧＳＭ和ＴＥＴＲＡ何者对中国铁路移动通信更为适宜？数字集群国家标准工作组曾经专题组织了研究并讨论，对频谱效率、呼叫建立时间、安全性、脱网直通、话音质量、高速环境适应性、频段指配和经济性等８个问题，作了分析。本文对数字集群的产业化以及系统升级等方面作了介绍，可供有关部门决策参考。

GSM-R and TETRA, which is more suitable for railway mobile communication in China? Digital trunking system national standard working group have studied and discussed for 8 problems such as frequency efficiency, call setup time, security, DMO, voice quality, adaptability of high speed environment, frequency assignment, economy and so on. Industrialization and upgrade of digital trunking system are also introduced. It can be offering to railway authority for decision-making reference.