摘要
对前三代移动通信系统作了简单的介绍,并指出了第三代移动通信系统的不足,对第四代移动通信的主要技术特点及其关键技术进行了探讨。
This paper begins with a brief introduction to the previous three generations of mobile communication systems, followed by a discussion of the disadvantages of the third generation systems and concludes with a presentation of the major technological features and key technologies of the fourth generation mobile communication.
出处
《电子科技》
2005年第4期59-61,共3页
Electronic Science and Technology
关键词
移动通信
3G
4G
关键技术
Mobile communication
3G
4G
key technology
