铁道技术监督
鐵道技術鑑督
철도기술감독
2015年
5期
39-42
,共4页
高速铁路%无线通信系统%GSM-R%TD-LTE%LTE-R
高速鐵路%無線通信繫統%GSM-R%TD-LTE%LTE-R
고속철로%무선통신계통%GSM-R%TD-LTE%LTE-R
High Speed Railway%Wireless Communication System%GSM-R%TD-LTE%LTE-R
分析我国高速铁路的业务特点以及无线宽带系统的技术特性，根据高速铁路车地宽带系统的测试情况及既有系统（GSM-R）的平滑升级的需求，提出高速铁路车地无线宽带传输系统的主要架构，指出系统应具备的技术特点，分析高带宽、高频率切换和多优先级等关键技术，并对多普勒、高频率切换、无线覆盖和带宽适应等关键技术进行了探讨。
分析我國高速鐵路的業務特點以及無線寬帶繫統的技術特性，根據高速鐵路車地寬帶繫統的測試情況及既有繫統（GSM-R）的平滑升級的需求，提齣高速鐵路車地無線寬帶傳輸繫統的主要架構，指齣繫統應具備的技術特點，分析高帶寬、高頻率切換和多優先級等關鍵技術，併對多普勒、高頻率切換、無線覆蓋和帶寬適應等關鍵技術進行瞭探討。
분석아국고속철로적업무특점이급무선관대계통적기술특성，근거고속철로차지관대계통적측시정황급기유계통（GSM-R）적평활승급적수구，제출고속철로차지무선관대전수계통적주요가구，지출계통응구비적기술특점，분석고대관、고빈솔절환화다우선급등관건기술，병대다보륵、고빈솔절환、무선복개화대관괄응등관건기술진행료탐토。
The paper analyzes the business features of domestic high speed railway and the technical features of the wireless broadband system. According to the testing of the high speed railway train-to-wayside broadband system and the smooth upgrade demand of the existing system(GSM-R),the paper puts forward the main architecture of the high speed railway train-to-wayside wireless broadband transmission system,indicates the technical features of the system,analyzes key technologies including high bandwidth & high frequency switchover and multipriority,etc. Moreover,it also discusses such key technologies as Doppler,high frequency switchover,wireless coverage and bandwidth adaptation,etc.
