In order to provide Packet Data Service through GPRS, a new class of network nodes needs to be introduced as an upgrade to the existing GSM network. These network nodes are called as GSN (General Support Nodes).

There are two types of support nodes namely,

• The Serving GPRS support node …

GPRS:

General Packet Radio Services (GPRS) is a best-effort packet-switching protocol for wireless and cellular network communication services. It is considered best effort because all packets are given the same priority and the delivery of packets isn't guaranteed.

The 3rd Generation Partnership Project (3GPP) standardized GPRS in early 1998, but …