Sgsn/Ggsn Deployments - Cisco ASR 5000 series Product Overview

Serving GPRS Support Node (SGSN) Overview
Figure 161. Dual Access 2.5G/3G SGSNs
BSS
A-bis
UE
BTS
PCU
Node-B
UE
UTRAN

SGSN/GGSN Deployments

The co-location of the SGSN and the GGSN in the same chassis facilitates handover. Again, it can be any type of
SGSN, 2.5G or 3G, with the GGSN.
OL-22938-02
IP-based GPR/UMTS Public Land Mobile Network (PLMN)
BSC
Gs
Gb
IuPS
RNC
SGSN
Gr
Gf
2.5G
&/or
3G
SGSN
Gn
Gd
Network Deployments and Interfaces ▀
Ga
UDP
Gn
GGSN
Gp
GGSN
in different
PLMN
Cisco ASR 5000 Series Product Overview ▄
PDN
Gi