节点文献
CDMA2000系统核心网QoS功能的设计与实现
The QoS Design and Implementation in the Core Network of CDMA2000 System
【作者】 代胜国；
【导师】 宋茂忠；
【作者基本信息】 南京航空航天大学 ， 通信与信息系统， 2009， 硕士
【摘要】 随着无线通信技术的飞速发展,人们越来越期望移动网络可以随时随地为用户提供可靠的服务。不同的用户对网络延迟以及丢包率等方面的要求也不尽相同。如何在第三代移动通信网络中给不同类型的用户提供不同的服务质量,是每一个运营商和设备制造商重点关注的问题。本文设计的硬件和软件模块就是为了实现CDMA2000移动通信系统核心网设备的QoS功能,以满足移动用户的需求。多核物理单板是核心网设备的基础硬件单元,本文在对其设计架构和工作机制进行分析后,根据3GGP2组织制定的高速分组数据网络QoS架构标准,采用结构化和模块化处理的开发方式,将QoS功能分为用户面、媒体面和管理面三个部分,并分别进行了详细设计和实现。而且在QoS用户面和QoS媒体面大模块里根据各个小模块的处理情况,将相同或相关联的部分功能集合在一起,采用分层模式实现整体的功能。最后在硬件平台上搭建了一个稳定可靠的模拟通信环境,并针对ACL功能和QoS功能设计了相应的测试方法和通过准则,为后续测试做了充分的准备。
【Abstract】 With the high-speed development of communication, all users wish to communicate with others at every moment and everywhere. Different users need different delay-time and packet-loss-ratio. Mobile network should provide different quality of service to different users, so how to resolve this problem in the 3rd generation mobile system is an important issue for every carriers and equipment manufacturers. The hardware and software modules designed in this paper are to implement QoS functionality in the core network equipment of CDMA2000 system, so that it can meet the needs of mobile customers.The multicore board is the basic hardware unit in the core network equipment. In the wake of qanalyzing the design structure and working mechanism, we took the development of structured and modeled way, the QoS function is designed and implemented sepearately in aspects of user side, media side and management side accrording to architechture standard of the QoS Model in HRPD made by 3GGP2 Organization. Regarding user side and media side, we collected the same or relative models and implement the overall function using stratified pattern. At last, we established a stable and reliable simulation environment based on hardware platform, designed the accordingly test methods and criteria against the ACL and QoS function, making completely prepartions for the following test.