30-07-2012, 03:46 PM
Cellular Mobile Communication System
GSM System Architecture.pdf (Size: 616.39 KB / Downloads: 37)
GSM Specifications
Designed to be Platform-Independent
Specify Network functions & Interfaces in details, not Actual Hardware requirements
Allows hardware manufacturers to be creative in providing actual functionality.
Allows operators to buy equipment from different suppliers.
Architecture of the GSM system
.Several providers setup mobile networks following the GSM standard within each country
.Components
–MS (mobile station)
–BS (base station)
–MSC (mobile switching center)
–LR (location register)
.Subsystems
–RSS (radio subsystem): covers all radio aspects
.Base station subsystem
–NSS (network and switching subsystem): call forwarding, handover, switching
–OSS (operation subsystem): management of the
Network Subsystems
1.Network Subsystem(NSS)includes the equipments and functions related to end-to-end call.
2.Base Subsystem(BSS)includes the equipments and functions related to the management of the connections on the radio path.
3.Operations and Maintenance subsystem(OMC)includes the operation and maintenance of GSM equipment for the radio and network interface
Functions of Mobile Station
Voice and data transmission
Frequency and time synchronization
Monitoring of power and signal quality of the surrounding cells
Provision of location updates even during inactive state
Equalization of multi path distortions
GSM
Mobile Station
Portable, vehicle mounted, hand held
MS identified by unique IMEI (*#06#)
Shall display at least last ten received, dialled and missed calls
Minimum talk time of 1hr 30 min. and standby time of 80 hrs
160 characters long SMS
GSM System Architecture.pdf (Size: 616.39 KB / Downloads: 37)
GSM Specifications
Designed to be Platform-Independent
Specify Network functions & Interfaces in details, not Actual Hardware requirements
Allows hardware manufacturers to be creative in providing actual functionality.
Allows operators to buy equipment from different suppliers.
Architecture of the GSM system
.Several providers setup mobile networks following the GSM standard within each country
.Components
–MS (mobile station)
–BS (base station)
–MSC (mobile switching center)
–LR (location register)
.Subsystems
–RSS (radio subsystem): covers all radio aspects
.Base station subsystem
–NSS (network and switching subsystem): call forwarding, handover, switching
–OSS (operation subsystem): management of the
Network Subsystems
1.Network Subsystem(NSS)includes the equipments and functions related to end-to-end call.
2.Base Subsystem(BSS)includes the equipments and functions related to the management of the connections on the radio path.
3.Operations and Maintenance subsystem(OMC)includes the operation and maintenance of GSM equipment for the radio and network interface
Functions of Mobile Station
Voice and data transmission
Frequency and time synchronization
Monitoring of power and signal quality of the surrounding cells
Provision of location updates even during inactive state
Equalization of multi path distortions
GSM
Mobile Station
Portable, vehicle mounted, hand held
MS identified by unique IMEI (*#06#)
Shall display at least last ten received, dialled and missed calls
Minimum talk time of 1hr 30 min. and standby time of 80 hrs
160 characters long SMS