宽带CDMA IP网中实现区分服务的QoS结构

3G CDMA网提供高速无线IP服务，其业务主要包括数据、语音互式多媒体。为了能保证这些异构业务的QoS，并提供业务区分，将有线IP网的分区服务（DIFFSERV）QoS模型引入3G CDMA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。

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

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.