宽带CDMA IP网中实现区分服务的QoS结构  

The QoS Structure of Differentiated Services Provisioning in the Wideband CDMA IP Network

作　　者：铁玲[1] 邱跃洪[1] 蒋玲鸽[1] 诸鸿文[1] 

机构地区：[1]上海交通大学现代通信研究所,上海200030

出　　处：《通信技术》2001年第5期47-50,共4页Communications Technology

摘　　要：3GCDMA网提供高速率的无线IP服务,其业务主要包括数据、语音和交互式多媒体。为了能保证这些异构业务的QoS,并提供业务区分,将有线IP网的区分服务(DIFFSERV)QoS模型引入3GCDMA网络。针对无线网络的终端移动性、高丢失率、更低的网络带宽等特点,对原有的DIFFSERV结构进行了修改,给出了基于DIFFSERV的无线QoS结构,并简单描述了实现协议。还给出了有效带宽的录入控制策略和资源预留策略来实现QoS。通过仿真,研究了各种策略的性能。3G CDMA network will provide high speed wireless IP service.The main serv ice will in-clude data,voice and interactive mu ltimedia service.In order to guaran tee the heterogeneous service QoS and provide service differentiated.We will introduce the differentiated services models into 3G CDMA sys-tem.We improve the original DIFFSER V structure and add the character of t he mobility ,high loss rate and low network bandwidth.We provid e the structure and protocol of wireless QoS.We propose an effec-tive bandwidth -based admission con trol policy and resource reservatio n schemes to provide QoS.We also study the system performance under v arious schemes through simulations.

关 键 词：服务质量 因特网 码分多址 IP网 移动通信 

分 类 号：TN929.533[电子电信—通信与信息系统] TP393.4[电子电信—信息与通信工程]