基于铁路运用场景的GSM-R系统无线信道资源估算方法研究  

Research on Method of Estimation of Wireless Channel Resources of GSM-R System Based on Railway Application Scenarios

作　　者：李坚 陈晓辉[3] 陈建平 LI Jian;CHEN Xiaohui;CHEN Jianping(Department of Communication and Signal,China Railway Beijing Group Co.,Ltd.,Beijing 100860,China;Nanjing Ticom Technology Co.,Ltd.,Nanjing 210039,China;Department of Electronic Engineering and Information Science,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国铁路北京局集团有限公司通信与信号部,北京100860 [2]南京泰通科技股份有限公司,江苏南京210039 [3]中国科学技术大学电子工程与信息科学系,安徽合肥230026

出　　处：《铁道学报》2021年第8期81-87,共7页Journal of the China Railway Society

基　　金：中国铁路北京局集团有限公司科研课题(2019CD05)。

摘　　要：现有铁路移动通信系统(GSM-R)频率资源受限,频率资源配置方案直接决定了系统的运用质量和效率。随着建设规模逐步扩大,传统频率规划配置原则已不能很好指导GSM-R系统的工程实践和运维工作。以满足运输生产组织需求为前提,以提高频率资源效率为目标,立足GSM-R系统技术特点,在既有GSM-R系统无线信道资源估算方法的基础上,提出一种基于铁路运用场景的GSM-R系统无线信道资源估算方法。研究表明,该方法能够较好用于GSM-R基站小区频率资源的优化配置工作,较传统的话务量估算方法,更加符合铁路运用特点。As a frequency resource limited system,frequency planning is one of the key points that determine the application quality and operation efficiency of the GSM-R system.With the gradual expansion of the construction scale,the traditional frequency planning and allocation principles can no longer guide the engineering practice and operation and maintenance of the GSM-R system.In order to satisfy the needs of railway transportation organization and maximize frequency resource efficiency,based on technical features of GSM-R system and the existing GSM-R system wireless channel resource estimation method,a new method of wireless channel resource estimation for GSM-R systemwas proposed,based on railway application scenarios.The results show that this method can be better used to optimize the frequency resource allocation of GSM-R base station cell.Compared with traditional communication traffic estimation methods,this method is more consistent with the characteristics of railway applications.

关 键 词：铁路移动通信系统(GSM-R) 频率规划 话务量 

分 类 号：TN929.53[电子电信—通信与信息系统]