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GSM Mobile Services - Coggle Diagram
GSM Mobile Services
Localization
International mobile subscriber
identity (IMSI)
Temporary mobile subscriber identity (TMSI)
Mobile station roaming number (MSRN)
Mobile station international ISDN number (MSISDN)
Handover
Intra-cell handover
Inter-cell, intra-BSC handover
Inter-BSC, intra-MSC handover
Inter MSC handover
Categories
Tele/ Telephony Services
Bearer / Data Services
Supplementary Services
GSM Architecture
Radio Subsystem (RSS)
Mobile Station (MS)
Base Station Subsystem (BSS)
Base Transceiver Station (BTS)
Base Station Controller (BSC)
Base Station Controller (BSC)
Interface
Um - Radio
Abis / A - Standard
Network Switching Subsystem (NSS)
Gateway MSC (GMSC)
Mobile Switching Center (MSC)
Database
Home Location Register (HLR)
Visitor Location Register (VLR)
Interworking Functions (IWF)
Operation Subsystem (OSS)
Authentication Centre (AuC)
Equipment identity register (EIR)
Operation and maintenance center (OMC)
Security and its Algorithms
A3 for authentication
A5 for encryption
A8 for cipher key generation
General Packet Radio Service (GPRS)
GPRS Support Node (GSN)
Serving GPRS Support Node (SGSN)
Gateway GPRS Support Node (GGSN)
Calling
Mobile Terminated Call (MTC)
Mobile Originated Call (MOC)
UMTS Terrestrial Radio Access Network (UTRAN)
Universal Mobile Telecommunication System (UMTS)