Thomas Kunz
Systems and Computer Engineering
24
Architecture of the GSM system
nGSM is a PLMN (Public Land Mobile Network)
–several
providers setup mobile networks following the GSM standard within each country
–components
nMS (mobile
station)
nBS (base
station)
nMSC (mobile
switching center)
nLR (location
register)
–subsystems
nRSS (radio
subsystem): covers all radio aspects
nNSS (network and
switching subsystem): call forwarding, handover, switching
nOSS (operation
subsystem): management of the network