GSM Architecture Explained- Global System For Mobiles Tutorial
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This video briefly explains all the major subsystems (architecture) of a GSM network. We differentiate between the access network (Base station subsystem) and core network (Network Subsystem). Then we detail various functional blocks of these subsystems and their working, like:
BTS (Base Station)
BSC (Base Station Controller)
TRAU (Transcoding and Rate Adaption Unit)
MSC (Mobile Switching center)
IWF (Inter Working Function)
HLR (Home Location Register)
VLR (Visitor Location Register)
AUC (Authentication Center)
EIR (Equipment Identity Register)
OMC (Operation and Maintenance Center)
We also also differentiate between International Mobile Subscriber Identity (IMSI) and International Mobile Equipment Identity (IMEI)
gsm vlr visitor location register
