目前,国内高速铁路使用基于全球铁路移动通信系统(Global System for Mobile Communications-Railway,GSM-R)的双向无线通信系统,实现列车与地面之间的安全信息传输。然而,无线通信存在传输延迟和丢包,严重时会影响运行效率,因此需要研...目前,国内高速铁路使用基于全球铁路移动通信系统(Global System for Mobile Communications-Railway,GSM-R)的双向无线通信系统,实现列车与地面之间的安全信息传输。然而,无线通信存在传输延迟和丢包,严重时会影响运行效率,因此需要研究GSM-R系统服务质量(Quality of Service,QoS)参数,以满足实时性和可用性需求。选取传输延时作为待优化的GSM-R无线通信系统QoS参数,定量分析端到端传输延迟时间,提出基于无线传输参数自适应的加强学习优化方案。仿真结果表明,该方法可以显著提升无线通信系统性能。展开更多
GSM-R system mainly provides dispatching communication servicessuch as train operation dispatching, realizes wired and wireless dispatchingcommunication, and provides safe and reliable train-ground informationtransmis...GSM-R system mainly provides dispatching communication servicessuch as train operation dispatching, realizes wired and wireless dispatchingcommunication, and provides safe and reliable train-ground informationtransmission services for high-speed train operation control system. Jakarta-Bandung HSR is the first “going global” HSR with whole industry chain built by China. It isconstructed based on CTCS-3 train control system standard. In order to ensure the safetransmission of train control system information under high-speed operation environment, aset of GSM-R system implementation scheme suitable for Jakarta-Bandung HSR is establishedin combination with the actual situation of Jakarta-Bandung HSR, referring to China's GSMRsystem technical standards and according to its actual business requirements. It includesGSM-R core network, wireless subsystem and data number, which can provide reference forthe construction of wireless communication system for China's HSR “going global”.展开更多
文摘目前,国内高速铁路使用基于全球铁路移动通信系统(Global System for Mobile Communications-Railway,GSM-R)的双向无线通信系统,实现列车与地面之间的安全信息传输。然而,无线通信存在传输延迟和丢包,严重时会影响运行效率,因此需要研究GSM-R系统服务质量(Quality of Service,QoS)参数,以满足实时性和可用性需求。选取传输延时作为待优化的GSM-R无线通信系统QoS参数,定量分析端到端传输延迟时间,提出基于无线传输参数自适应的加强学习优化方案。仿真结果表明,该方法可以显著提升无线通信系统性能。
文摘GSM-R system mainly provides dispatching communication servicessuch as train operation dispatching, realizes wired and wireless dispatchingcommunication, and provides safe and reliable train-ground informationtransmission services for high-speed train operation control system. Jakarta-Bandung HSR is the first “going global” HSR with whole industry chain built by China. It isconstructed based on CTCS-3 train control system standard. In order to ensure the safetransmission of train control system information under high-speed operation environment, aset of GSM-R system implementation scheme suitable for Jakarta-Bandung HSR is establishedin combination with the actual situation of Jakarta-Bandung HSR, referring to China's GSMRsystem technical standards and according to its actual business requirements. It includesGSM-R core network, wireless subsystem and data number, which can provide reference forthe construction of wireless communication system for China's HSR “going global”.
