GSM
GSM
MS Mobile Station
BTS Base Telephone Station -
BSC Base Station Controller
MSC Mobile Switching Center
EIR Equipment Identification Register
HLR Home Location Register
VLR Visit Location Register
GSM
Um MS BTS.
BSS:
Abis BSC BTS , 64 / 2,048 /.
A MSC BSS, BTS BSC, BSS, , . A- .
SSS:
C MSC HLR. MSC HLR , .
B MSC VLR . , MSC VLR, . , MS .
D HLR VLR . , , .
E MSC handover .
SIM Subscriber Identity Module ;
IMEI International Mobile Equipment Identity ;
IMSI International Mobile Subscriber Identity ( ), GSM, UMTS CDMA :
1) MCC Mobile Country Code
2) MNC Mobile Network Code
3) HLR
4) ID ( MSIN Mobile Subscriber Identification Number)
IMSI
Um GSM c TDMA/FDMA ( )
GSM
GSM (GPRS/EDGE)
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GSM (GPRS/EDGE)
: - GPRS EDGE GSM;
- GSM EDGE GERAN (GSM/EDGE Radio Access Network);
- () GSM 9,6 /;
- 171,2 /c ( GPRS);
- (, 8-PSK) 474 / ( EDGE).