摘要
现有的GSM系统的发展受到了频率瓶颈的制约,第三代移动通信系统三大主流无线接口标准分别为WCDMA、CDMA2000和TD-SCDMA。通过比较分析这些技术在提高频谱效率上的作用,可以看出我国自主研发并提交的TD-SCDMA标准具有相对较高的频谱效率。
The development of existing GSM system is limited in frequency bottle-neck.The three main current wireless interface standards of the third generation mobile communication system are W-CDMA,CDMA 2000 and TD-SCDMA.The effects of these technologies on improving spectrum efficiency are compared,the results show that TD-SCDMA standard possessed of higher spectrum efficiency which is developed and submitted by China.
出处
《信息技术》
2007年第10期106-108,共3页
Information Technology
关键词
3G
频谱资源
TDD
频谱效率
3G
spectrum resource
TDD
spectrum efficiency
