中文摘要：

通用分组无线业务（GPRs）是）高速铁路车地间数据通信的重要手段之一，随着GPRS承载数据量的增大，必然带来GPRS资源的竞争问题。从高速铁路GPRS应用需求出发，提出了铁路数字移动通信系统（GSM—R）分组域承载能力测试方法，测试不同数据包长度、不同终端数量、不同分组数据信道（PDCH）数量条件下GPRS最大吞吐量，并分析数据包长、GPRS终端数量、PDCH数量与吞吐量的关系，从而为GPRS业务规划提供参考。

英文摘要：

GPRS is one of communication between train railway. With the increase the important means of data and ground for high-speed of GPRS traffic load,the competition among GPRS resources will inevitably increase. In this paper,a method to test the beating capacity of GPRS is proposed to meet the requirements of high-speed railway GPRS,it can test the maximum throughput of GPRS under different packet lengths,different user numbers and different PDCH （packet data channel） numbers,the relationship between them is analyzed to provide a reference for GPRS performance planning.