摘要
cdma 2000是面向下一代移动通信设计的宽带无线技术。它采用上层、链路层和物理层三层设计,具有较好的灵活性和可伸缩性,可应用于室内外、步行、车载等多种环境。它实现了从现有TIA/EIA-95-B系统到下一代移动通信系统的平滑过渡,同时支持该系统的信令协议和消息以及与该系统间的切换。
cdma 2000 is a broadband wireless technology designed for the NG mobile communications. It adopts the design of the 3 layers of upper layer, link layer and physical layer providing fairly good flexibility and scalability, and suitable for indoor/ outdoor, pedestrian, vehicle-mounted and a variety of other environments. It has undergone smooth migration from the legacy TIA/ EIA-95-B system to the NG mobilecom system while supporting corresponding signaling protocols, messages and intersystem switchover.
出处
《世界电信》
1999年第9期21-23,29,共4页
World Telecommunications
关键词
移动通信系统
码分多址
系统设计
系统分析
Mobile communication systems CDMA System design Systems analysis
