Concerning the development trend of the GSM/GPRS network,and from the angle of radio networks and core networks,this article pre- sents three concrete solutions to the evolution towards WCDMA.It points out that the ov...Concerning the development trend of the GSM/GPRS network,and from the angle of radio networks and core networks,this article pre- sents three concrete solutions to the evolution towards WCDMA.It points out that the overlay network scheme has the minimum impact on the operation of current networks,and ensures the evolution of NGN to all-IP networks and the smooth transition of 2G services.展开更多
文摘Concerning the development trend of the GSM/GPRS network,and from the angle of radio networks and core networks,this article pre- sents three concrete solutions to the evolution towards WCDMA.It points out that the overlay network scheme has the minimum impact on the operation of current networks,and ensures the evolution of NGN to all-IP networks and the smooth transition of 2G services.