摘要
本文首先从技术背景和应用环境等方面对TD/CDMA(TDD)和FDD,特别是中国提交的TD—SCDMA技术作了介绍和比较。cd-ma2000与WCDMA的标准融合基本已达成一致,但要作到真正的融合,分别负责标准直扩模式和多载波模式定义的3GPP和3GPP2还需解决许多具体的问题。
The TD/ CDMA (TDD), FDD and particularly TD-SCDMA technologies are presented with brief introductions and comparisons in terms of technical background and application environments. The convergence of cdma2000 and WCDMA standards has entered into a rudimentary consensus, notwithstanding the real combination entails the solution to numerous concrete problems.
出处
《世界电信》
1999年第9期24-26,共3页
World Telecommunications
关键词
移动通信
标准化
码分多址
Mobile communication Standardization CDMA
