LTE-M车地通信中的综合接入技术研究

摘要

研究城市轨道交通LTE-M车地通信中多种业务综合接入技术，重点关注流量调度策略、带宽共享和流量分担技术。通过分析和实际测试，提出建议综合业务采用双网承载方式和负载均衡技术，既保证各业务承载的可靠性，又满足高实时性、大带宽业务（如视频传输业务）的传输需求。%The paper studies the integrated access technologies in LTE-M train- trackside wireless communication, including trafifc scheduling policy, bandwidth and lfow sharing technologies. Based on the analysis and actual testing cases, it puts forward the suggestion that integrated services should be carried over LTE-M dual-network with load balance, for ensuring the reliability of multi-services transmission and meeting the demands of real-time and large bandwidth service, video transmission for example.