资料介绍
GSM-NETGSM Network
Introduction S.H.Jamali
Structure of Talk
GSM Network & Its Elements Some Procedures Layers in GSM Radio Channels Frequency Bands Power Classes Burst Structure Logical Channels Frame Structure Some Procedures Logical Channels
Structure of Talk
GSM NETWORK
(Elements)
GSM Network
OMC PSTN
G M S C
HLR AUC EIR
B S C
B T S
B T S
HS
B T S
MS
B T S
VLR
B S C
B T S
B T S
M S C
B T S
B T S
GSM NETWORK
(MS)
GSM Network
SIM
43211
Processor & Memory
MS
Hardware & Software
SIM: Subscriber Identity Module (without SIM a Mobile is not
Operational except for Emergency Calls) Permanent Information Temporary Information 9IMSI 9TMSI 9Authentication Key 9Additional GSM Services 9Access Control Class 9Subscriber Information 9 ... 9 Location Area Identity (
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