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

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.