for the user and GGSN to provide packet routing functions, it will be the base station controller (Controller BSC, BaseStation) sent the packet sent to other SGSN
or via GGSN external Internet network transmission.
CGE is targeted for edge and core telecommunications including applications for the converging IP and voice networks such as softswitches, SGSN
(Serving GPRS Support Node) and GGSN (Gateway GPRS Support Node), RNC (Radio Network Controller), voice over IP (VoIP) gateways, and many other applications.
The problem is that the SGSN
assigns to MT dynamic IP address by default (likewise provider of dial-up connection to the Internet).
In GRPS and EDGE systems, mobility management is handled through the SGSN
rather than the MSC associated with GSM.
It provides for the countrywide implementation of Motorola's GPRS radio network solution that includes the Serving GPRS Support Node (SGSN
), supplied by Motorola Computer Group, and the Gateway GPRS Support Node (GGSN) from Cisco Systems.
To support the new features introduced by GPRS, the existing GSM network must be enhanced with the addition of a new set of network elements, such as packet control unit (PCU), the serving GPRS support nodes (SGSN
) and the gateway GPRS support nodes (GGSN).
Finally the Nokia 3G SGSN
combines the power of IP routing with the flexibility of mobile networks and is designed to be optimised for the new levels and types of traffic in 3G.
Motorola's contract with T-Mobil is for the countrywide implementation of Motorola's total Aspira GPRS network solution, including the Serving GPRS Support Node (SGSN
), and the Gateway GPRS Support Node (GGSN), from Cisco.
The Nokia 3G Mobile Packet Core elements SGSN
(Serving GPRS Support Node) and GGSN (Gateway GPRS Support Node) will be IPv6 capable from day one of commercial 3G operations, therefore providing an optimal basis for the evolution towards All-IP Core networks.