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未来几年,我国的高速铁路网逐渐成形,对铁路信息技术的功能性要求提出了新的需求,特别是列车与地面间的通信业务需求不断拓展,现有的铁路窄带无线通信技术难以承载当前铁路的诸多业务,必须建立铁路下一代移动通信系统LTE-R,选用具有我国自主知识产权的TDD-LTE制式成为业内共识。
In the next few years, the high-speed railway network in China is gradually forming, putting forward new demands on the functional requirements of the railway information technology. In particular, the demand for communication services between the train and the ground is constantly expanding. The existing narrowband wireless communication technology of the railway is hard to carry the current Many businesses of railways must establish LTE-R, the railway’s next-generation mobile communications system. It has become the consensus in the industry to select the TDD-LTE standard with China’s independent intellectual property rights.