【摘要】 在GPRS协议体系中,不仅定义了高层的分组数据传输协议,它也尝试提供对数据流的服务质量保证。GPRS定义了一些系列的QOS参数和服务等级,但是没有对QOS控制和过程进行详细描述。在这篇论文中,将讨论多种QOS服务保证机制,它们包括:接入控制、资源预留、整形和队列管理。按照它们对应的GPRS网络的组件和协议等级的不同,分别对他们进行详细的描述。更多还原

【Abstract】 In the system of GPRS,it not only defines the high lev el transferring protocol of packeted data,but also provides Quality of Service.Alt hough GPRS defines several service levels,it does not describe the process of Qo S control in detail.In this paper,we discuss several QoS mechanism,including Acc ess Control,Resource Obligate,Shape and Queue Management.Then we describe them i n detail in order of the level.更多还原