SGSN in Telecom

SGSN stands for "Serving GPRS Support Node". It is a key component in the 2G/3G Packet Core Network architecture.

The SGSN authenticates the mobile device, and verifies its credentials for network access.

And it tracks the location of the mobile device, and manages its mobility within the network.

The MME communicates with other network elements, such as the Gateway GPRS Support Node (GGSN), Home Location Register (HLR), in order to perform its functions.

SGSN
SGSN