一种UMTS核心网中CAC算法  

A CAC Algorithm in UMTS Core Network

作　　者：姚正林[1] 刘金刚[1] 

机构地区：[1]中国科学院计算技术研究所--首都师范大学计算机应用联合实验室,北京100086

出　　处：《微电子学与计算机》2003年第8期6-9,65,共5页Microelectronics & Computer

摘　　要：在通用移动通信系统(UMTS)中,无论在无线接入部分还是在核心网部分,QoS的保证都是关键性问题。呼叫准入控制(CAC)是QOS机制的重要组成部分,本文根据3GPP对UMTS 业务种类的定义及相应的QoS分类,对UMTS核心网络的QoS准入控制问题进行了研究。基于排队论的思想,提出了一种基于综合排队机制的CAC算法,并对其进行了相应的性能分析和仿真实验,结果表明了本算法的有效性。Not only in radio access network(RAN),but also in core network(CN)of Universal Mobile Telecommunication System(UMTS),the QoS guarantee is a very important issue.And the call admission control(CAC)is an important part in the UMTS QoS mechanism.In this paper,the problem of CAC in UMTS core network has been researched.According to traffic classes defined in3GPP specification,and combing with the method of queuing analysis,many kinds of traffic has been analyzed.Then a CAC algorithm is proposed.In the paper,this algorithm also is tested in simulating experiment.The results show that the algorithm is available.

关 键 词：移动通信系统 UMTS CAC算法 呼叫准入控制 服务质量 

分 类 号：TN929.5[电子电信—通信与信息系统]