Thomas Kunz
Systems and Computer Engineering
45
Example
IP-based 4G/Next G/… network
IP-based
core
SS7 signalling
Internet
GSM
UMTS
public
WLAN
RNC
BSC
firewall, GGSN,
gateway
gateways
server farm,
gateways, proxies
PSTN, CS core
MSC
SGSN
router
broadcast
access
points
private
WLAN
private
WPAN