高速铁路移动通信系统关键技术的演进与发展_方旭明.pdfVIP

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高速铁路移动通信系统关键技术的演进与发展_方旭明.pdf

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高速铁路移动通信系统关键技术的演进与发展_方旭明

37 1 Vol.37 No.1 2015 1 Journal of Electronics Information Technology Jan. 2015 (610031) TN929.5 A 1009-5896(2015)01-0226-10 DOI: 10.11999/JEIT141156 The Evolution and Development of Key Technologies of Mobile Communication Systems for High-speed Railway Fang Xu-ming Cui Ya-ping Yan Li Song Hao (School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, China) Abstract: Since the birth of the high-speed railway, it is growing with the mobile communication demand of train to wayside. One part of traffic load demand is from the train control and train dispatching, which is an important part of the high-speed railway. And another part of the traffic load is from the passengers, which is one of the important Key Performance Indexes (KFIs) that can satisfy the requirement of passenger service quality. Especially in the era of mobile Internet, the Internet demand becomes an important part of people’s daily life. This paper summarizes the important processes of the development of mobile communications for high-speed railway over the world, especially the present mobile communication technologies to support the passengers’ information access from train to Internet. Based on the development trend of mobile