基于Parlay API的多方呼叫业务的设计与仿真实现

文中分析了3G蜂窝移动通信网络中增值业务设计的重要性,提出了一种基于Parlay API技术的3G移动通信网络多方呼叫业务的程序设计方法,并在NRG仿真器上对该业务进行了仿真实现,验证了遵循parlay组织提出的开放API开发电信增值业务的可行性和简单性.最后,分析了3G网络中多方呼叫业务的实际运作效果及其市场价值.     

Parlay X技术在移动增值业务开发中的应用研究

简要介绍了Parlay X产生的背景以及与Parlay API的关系、接口功能,举例说明了Parlay X技术在移动增值业务开发中的实际应用,并从开放服务、完善能力、接口细化等方面提出了需要进一步完善的建议。     

A Development Environment for OSA-Based Applications over the Interworked WLAN and Cellular Networks

In this paper, we propose an OSA-based development environment for interworking WLAN and 3G cellular networks. The main goal of our work is to establish and create an environment that can serve as a demonstration of a working network for OSA-based application developers while featuring mobile services over the interworked LAN and 3G cellular networks. The proposed simulating environment has (i) a location update scheme that is used to obtain mobile users' locations and status information over the interworked WLAN and cellular networks, (ii) an instant message gateway (IMG) simulator that is developed to send and receive generic messages over the interworked WLAN and cellular networks, and (iii) a mapping of Parlay APIs onto SIP signaling messages for multiparty call applications over the interworked WLAN and cellular networks. An illustrated OSA-based application that utilizes the corresponding system functions and modules is developed and verified using the proposed simulating environment. Chung-Ming Huang received the B.S. degree in Electrical Engineering from National Taiwan University on 1984/6, and the M.S. and Ph.D. degrees in Computer and Information Science from The Ohio State University on 1987/12 and 1991/6 respectively. He is currently a professor in Department of Computer Science and Information Engineering, National Cheng Kung University, Taiwan, R.O.C. He is the director of The Promotion Center for Network Applications and Services, Innovative Communication Education Project, Ministry of Education, Taiwan, R.O.C. His research interests include broadband Internet and applications, wireless and mobile network protocols, ubiquitous computing and communications, and multimedia streaming. Tz-Heng Hsu received the B.S. degree from Department of Computer Science and Information Engineering, Feng Chia University on 1996/6, and the M.S. degree and Ph.D from Department of Computer Science and Information Engineering, National Cheng Kung University on 1998/7 and 2005/7, Taiwan, R.O.C. He is currently a assistant professor in Department of Computer Science and Information Engineering, Southern Taiwan University of Technology. His research interests are wireless and mobile network protocols, applications over interworked WLAN and cellular networks and communications, and multimedia streaming. Chih-Wen Chao received the B.S. degree from Department of Engineering Science, National Cheng Kung University on 2003/6, and the M.S. degree from Department of Computer Science and Information Engineering, National Cheng Kung University on 2005/7, Taiwan, R.O.C. His research interests are OSA-based applications and distributed multimedia systems.     

基于白盒测试的Parlay API接口测试方法设计

主要介绍了Parlay应用服务器的API接口,提出了一个简单的基于白盒测试的自动化测试平台实现方案,并详细介绍了该方案的基本设计思想、总体结构、测试用例的实现方法,以及该平台的工作机制。     

基于Parlay API规范的下一代网络业务架构

文章主要论述了下一代网络基于Parlay API规范的业务架构，讨论了Parlay组织为开放传统的网络中只有运营商才具有的各种功能而定义的应用程序编程接口（API）及其体系结构，在此基础上，用一个例子对业务的实现进行了一定的探讨。     

面向下一代网络的智能网技术改进研究

本文介绍了智能网技术在NGN中的一种应用改进模型,描述了基于该模型的原型系统实现方案．并给出了其性能测试结果。     

基于Parlay X Web Service开发多方多媒体会议业务的研究

本文首先概述了Parlay X Web Service的概念及其优点,接着详细介绍了按照Parlay X Web Sewice2.0规范开发多方多媒体会议的方案,最后分析了在会议中增加语音交互能力时需要解决的技术问题,并给出了解决方法.     

下一代网络中基于开放接口的业务开发方式

下一代网络是未来网络发展的方向和目标.无论是运营商、设备商还是业务提供商都在开展相关的研究工作,而其中开放接口的研究工作关系到未来增值业务开发模式的定位以及新价值链的形成.因此,本文首先从运营商、设备商及业务提供商3个层面分析了在下一代网络中引入开放接口的必要性.其次,在介绍目前开放接口发展情况的基础上,结合中国电信在开放接口方面的研究与实验结果,通过实际案例具体分析了基于开放接口进行业务开发的方式和方法.     

FMC发展策略的探讨

阐述了FMC的驱动因素和概念,深入剖析了当前多种FMC实施技术,并结合技术标准和业界现网应用情况,指出发展FMC应该考虑的主要问题。     

下一代网络业务架构的探讨

随着网络技术的飞速发展,原有的网络已不能满足用户的需求。以软交换设备为核心,能够提供话音、视频、数据等多媒体综合业务,采用开放、标准的体系结构,能够提供丰富业务的下一代网络(NGN)应运而生,且一度成为人们关注的热点。文章通过对NGN业务演进策略的分析得出NGN业务架构应满足的性能要求,然后根据现有的各项NGN业务技术构建了NGN业务架构,实现了传统电信业务和Internet业务的融合。