GSM-R/LTE-R双模终端的一种双网互助方法分析  

Analysis on A Double-network Mutual Aid Method for GSM-R/LTE-R Dual-mode Terminal

作　　者：王亮 张路昊 WANG Liang;ZHANG Luhao(TD Tech Ltd,Shanghai 201206,China)

机构地区：[1]鼎桥通信技术有限公司,上海201206

出　　处：《中国铁路》2020年第5期100-104,共5页China Railway

摘　　要：GSM-R系统向LTE-R系统演进是铁路通信的大趋势。GSM-R向LTE-R系统演进过程中会有很长时间的双系统共存阶段,以保证演进的平滑性,因此双系统共存和逐渐过渡是一个重要场景。在GSM-R向LTE-R的平滑过渡和业务搬迁阶段,在2个系统的不同无线接入制式间,根据对信号强度的测量和判断机制,在LTE-R和GSM-R中选择合适的无线接入网接入系统,以实现LTE-R/GSM-R双网互助的方案。The evolution from GSM-R system to LTE-R system is the general trend of railway communication.The two systems will coexist for a long time when GSM-R system evolves to LTE-R system,so as to ensure smooth evolution.Therefore,dual-system coexistence and gradual transition are important scenarios.When GSM-R system smoothly transits and relocates business to LTE-R system,appropriate access system to wireless access network is selected in LTE-R and GSM-R systems based on measurement and judging mechanism of signal strength between different wireless access systems of the two systems,making LTE-R/GSM-R dualnetwork mutual aid scheme come true.

关 键 词：GSM-R LTE-R 双模 无线接入网 双网互助 

分 类 号：U285.2[交通运输工程—交通信息工程及控制]