移动通信网络的服务质量  

QoS of Mobile Communication Networks

作　　者：段炼[1] 张浩亮[1] 吴伟陵[1] 

机构地区：[1]北京邮电大学信息工程学院

出　　处：《现代电信科技》2002年第10期13-17,共5页Modern Science & Technology of Telecommunications

摘　　要：移动用户需要通过移动通信网络接入因特网的多媒体业务。但是在移动通信网络中,用户的移动性、带宽紧缺和传输链路易产生差错等因素对无线网络服务质量(QoS)的提供增加了许多难题。从2.5G和3G移动通信系统的核心网络和无线接入网络两个方面对端到端QoS的提供进行了详细分析,并简要地讨论了未来移动无线网络端到端QoS中一些有待解决的问题。Mobile users need mobile networks to access Internet multimedia services.However,in mobile networks,the factors of user mobility,bandwidth in short and error susceptibility of trans-mission link will raise many problems for providing high-quality wireless net-work services.Detailed analysis is pro-vided for providing end-to -end QoS from the two aspects of core network and wireless access network of 2.5G and3G mobile communication systems.Some problems to be solved in end -to-end QoS of mobile communication networks in the future are discussed briefly.

关 键 词：移动通信网 QOS UMTS 服务质量 

分 类 号：TN929.5[电子电信—通信与信息系统]