无线通信TD-LTE技术承载地铁CBTC业务安全体系和密钥方案研究

On the Security System and Key Schemes of Metro CBTC Based on TD-LTE Technology

无线通信TD-LTE(时分-长期演进)技术在移动通信公用网络系统采用了一些新的安全保密机制,但仍无法完全克服无线网络固有的信号开放、信道动态变化等缺点所带来的安全隐患。基于TD-LTE技术承载地铁CBTC(基于通信的列车控制)业务的实际需求,提出了适用于TD-LTE技术承载地铁CBTC业务的安全架构和密钥方案。该方案可以为提高地铁CBTC业务通信网络安全提供解决思路,在未来地铁TD-LTE技术承载CBTC业务网络安全架构规划和密钥方案设计中有一定的应用价值。

Some new mechanisms are adopted in TD-LTE mobile communication network for the security and confi- dentiality of civilian uses, but the shortcomings of inherent signal opening and dynamic channel changes still cannot be completely overcome, which threaten directly the wireless network security. According to the actual needs of CBTC based on TD-LTE operations, the security architecture and key schemes applicable to CBTC based on TD-LTE are pro- posed. This program can provide solutions for the improve- ment of CBTC communication network security, and serve as a reference for the security architecture planning and the key design scheme in the future.