崔新雨
1,2,3，刘玲
1,2,3，周一青
1,2,3，潘振岗
4
（1.中国科学院计算技术研究所，中国 北京 100190；2. 移动计算与新型终端北京市重点实验室，中国 北京 100190； 3. 中国科学院大学，中国 北京 100049；4. 北京紫光展锐通信技术有限公司，中国 北京 100190）
摘要：通过对高铁车载缓存系统的概念、在工作流程的各个阶段遇到的问题以及相应的智能化解决方案进行详细的介绍，指出高铁车载缓存可以有效地减少移动设备与路边基站直连通信的次数，提升乘客的内容服务体验。但是，高铁车载缓存系统在实际的应用中仍然存在诸多问题需要解决，包括高铁与路边基站的协同缓存、乘客请求数据缺失下的请求规律挖掘、以及通信、计算、缓存资源的联合管控。
关键词：高铁通信；车载缓存；智能化
Intelligent High-Speed Train Onboard Caching
CUI Xinyu1,2,3,LIU Ling1,2,3, ZHOU Yiqing1,2,3, PAN Zhengang4
(1. Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100190, China; 2. Beijing Key Laboratory of Mobile Computing and Pervasive Device; Beijing 100190, China; 3. University of Chinese Academy of Sciences, Beijing 100049, China; 4. Beijing Unisoc Technologies Co., Ltd., Beijing 100190, China)
Abstract: An overview of the basic idea of the high-speed train on-board caching system is presented, the main challenges encountered at each stage of the workflow, and the corresponding intelligent solutions are detailed introduced. It is pointed out that the high-speed train on-board caching can effectively reduce the number of direct communications between mobile devices and roadside base stations, improving the quality of service of passengers. However, there are still many problems to be solved in practice, including the collaborative caching of high-speed train and roadside base stations, the mining of request features when passenger request data is missing, and the joint management and control of communication, computing, and caching resources.
Keywords: high-speed train communication; on-board caching; intelligence
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