无线分组数据自适应技术

Adaptation Techniques in Wireless Packet Data Service

对于分组数据业务来说 ,如果用户有一个良好的连接 ,则蜂窝的频谱效率和数据速率都会得到长足的提高 ,全世界所有的蜂窝标准都利用了这一点来进行数据速率自适应 ,文中就以下几种系统描述数据速率自适应过程 :CDMA (IS - 95 ) ,宽带CDMA (CDMA2 0 0 0和UMTSCDMA) ,TDMA (IS - 136 )和GSM (GPRS和EDGE) 。

For packet data service, if a user has a better link, cellular spectral efficiency and data rate can be increased to a large extent All the major cellular standards in the world carry out the rate adaptation by using this In this article, we describe date rate adaptation procedures for CDMA(IS-95),wideband CDMA(cdma2000 and UMTS WCDMA),TDMA(IS-136),and GSM(GPRS and EDGE) and discuss some pending problems