济南至青岛高速铁路IP Gb改造技术应用

Application of IP Gb Retrofit Technology on Jinan-Qingdao High-Speed Railway

目前,基于IP的Gb接口技术已经应用于各大运营商,而铁路通信IP化的进程还相对缓慢。针对铁路局Gb业务多采用传统的FR方式,故障发生时需进行人工倒换这一现状,阐述了Gb接口由FR方式改造为IP承载方式的技术方案,并针对Gb IP化后的GPRS附着、路由区更新、SGSN支持Gb-Flex以及冗余等关键业务进行测试,对IP Gb改造给出了比较详细的介绍。

At present,the technology of Gb interface based on Ip has been applied to all major operators,but the IP process of railway communication is still relatively slow.In view of the fact that the traditional FR mode is often used in Gb service of railway administration and manual back connection is needed when the fault occurs,this paper expounds the technical scheme of transforming the Gb interface from FR mode to IP bearing mode,the paper also gives a detailed introduction to the modification of IP Gb,aiming at the following key services GPRS attachment,routing area update,SGSN support for Gb-flex,redundancy and so on.