论文部分内容阅读
3GPP目前存在两个版本 ,R99(有时也称作R3版本 )和R4版本 ,且都在不断地进行更新。其中R99是目前最成熟、最稳定的版本。R99的特点是采用基于GSM/GPRS的核心网络 ,引人新的WCDMA和CDMATDD的无线接人网络 (RAN)。R99是 2 0 0 0年 3月在 3GPP?
Currently there are two versions of 3GPP, R99 (sometimes referred to as R3 version) and R4 version, and are constantly updated. Which R99 is the most mature and most stable version. The R99 features a wireless access network (RAN) that incorporates new WCDMA and CDMATDD using a GSM / GPRS based core network. R99 is March 2000 in 3GPP?