Ir接口安全性研究

The Research on Security of Ir Interface

分布式LTE基站的BBU和RRU之间以光纤为物理介质、采用通用Ir接口进行通信,由于异地部署、RRU拉远、级联等原因,BBU和RRU经常布局散,且距离远。这种情形下,如果经Ir接口侵入基站系统,将会对基站安全和信息保护带来威胁,因此有必要对Ir接口的安全性进行研究。本文通过分析可能存在的入侵风险,探讨针对这些风险的解决方案,利用常规加密技术,实现Ir接口的安全保护。

The interface between the BBU and RRU (Ir) is high-speed optical fiber. Due to off-site deployment and cascade, BBU and RRU are often scattered and long-distance. The invasion through the Ir interface can potentially threaten the security of base station. Therefore it is necessary to consider the security of the Ir interface. Based on the analysis of the potential invasion risks, we have constructed the solutions using conventional encryption technology.