Wireless Network Architecture

1. GSM Network Architecture - Simplified

Description:
Ms - Mobile Station
BTS - Base Transceiver Station
MSC - Mobile Switching Center
HLR - Home Location Register
VLR - Visitor Location Register
EIR - Equipment Identity Register
G-MSC - Gateway MSC.







2. GPRS Network Architecture - Simplified
GPRS - General Packet Radio Service
SGSN - Serving GPRS Support Node
GGSN - Gateway GPSR Support Node
PLMN - Public Land Mobile Network












3. UMTS Network Architecture - Simplified
Description:
RNC - Radio Network Controller
MSC - Mobile Switching Center
Ue - User Equipment
SGSN - Serving Gprs Support Node
PDN - Packet Data Network
PSTN - Public Switched Telephony Network