【摘要】 首先介绍了UMTS中VHE的基本概念及其结构模型;之后介绍了UMTS中实现开放式业务体系的API技术;最后探讨了在第二代移动通信网利用API技术实现第三代移动通信网中VHE业务的方案。更多还原

【Abstract】 This paper first introduces the basic concepts of VHE and its architecture model. Then described the API which is used in UMTS. How to provide VHE service on current network is discussed at the end.更多还原