【作者】 张锐；

【导师】 黄本雄；

【作者基本信息】 华中科技大学 ， 通信与信息系统， 2005， 硕士

【摘要】 作为软件测试中的一个重要组成部分,性能测试在WCDMA 电路域核心网设备的开发过程中占有举足轻重的地位。文章简要介绍了WCDMA 系统的发展现状,根据测试规范分析了WCDMA电路域核心网产品对性能测试工具的需求。针对WCDMA 电路域大话务量呼叫模拟器所要模拟和进行测试的对象,详细讨论了WCDMA 系统的网络架构、各网元结构与功能; 根据性能测试的需求,分析了测试工具与测试对象之间的接口——Iu-CS 接口上与性能测试相关的信令流程,包括移动性管理、呼叫控制、短消息和切换等。文章对实现WCDMA 电路域大话务量呼叫模拟器的关键技术进行了研究。根据性能测试的需求,研究了UTRAN 与UE 在Iu-CS 接口上的抽象和模拟,并对移动性管理、呼叫控制、短消息、RANAP、IuUP 等重要协议进行了简化; 考虑到性能测试中所可能采用到的呼叫模型的复杂性,提出了一种利用简单统一测试用例叠加模拟复杂呼叫模型的方法,并给出了测试用例的结构。结合具体实践,文章给出了WCDMA 电路域大话务量呼叫模拟器软件的模块划分与各模块设计,包括用户界面模块、测试用例管理模块、控制面协议模块和用户面协议模块,描述了它们的功能结构和子模块划分; 分析了通过绕开UDP以及IP 协议栈直接在以太网进行数据收发而对模拟器软件效率进行优化的方法。最后,结合实际,介绍了WCDMA 电路域大话务量呼叫模拟器所运行的硬件平台,并举例说明了WCDMA 电路域大话务量呼叫模拟器在实际测试过程中的一些应用情况,验证了设计方案的正确性。更多还原

【Abstract】 As a important component for software testing, performance testing is critical for the development of WCDMA CS domain network equipments. This paper has briefly reviewed the current developments of WCDMA systems, analyzed the requirements of WCDMA CS domain network products for performance testing. Referring to the objects simulated and tested by WCDMA CS domain mass calling simulator, this paper discussed the network architecture of WCDMA system and the network element structures and their functions. Based on the needs of performance testing, this paper also analyzed the interface between testing object and testing tools--the signal procedures related to performance testing at the Iu-CS interface, including the mobility management, calling control, short message service and handover. This paper studied the key technique for realizing mass calling simulator based on WCDMA CS domain. According to the requirements of performance testing, this paper studied the abstract and simulation of UTRAN and UE at the Iu-CS interface, and simplified the protocols of the mobility management, calling control, short message service and of RANAP and IuUP. In concern of the complexity of the calling modes that may be adopted by performance testing, this paper also suggested a method to simulate complicated calling model via accumulation of simple uniform testcases, and also gave the specific structures of the testcases. Through practice, this paper also gave the module partition and the module design of mass calling simulator based on WCDMA CS domain, which include user interface module, test case management module, control plane protocol module and user plane protocol module. The descriptions of their functional structures and partition of sub-modules are also included. Further more, this paper analyzed the method of optimizing the simulator software effectiveness by directly sending and receiving data packet on Ethernet layer in avoidance of UDP/IP protocol. Finally, combined with practice, this paper introduced the running hardware of WCDMA CS domain mass calling simulator, stressed on the applications of mass calling simulator in practical performance testing using various examples, and testified the validity of the designed scheme.更多还原