GSM. GSM.
1982-1985 | (CET) 900 . (GSM). |
, : (FDMA) (TDMA). | |
GSM TDMA FDMA. 12 (MoU), GSM 1991 . | |
CEPT GSM . 5 MoU. - MoU , . | |
(ETSI) GSM. | |
1 GSM , . | |
GSM 1800. MoU , , CEPT. | |
1. GSM 1. () (). | |
- , MoU. MoU 70 . GSM , , , . GSM . DCS 1800. | |
MoU 100 60 . GSM. GSM 3 . | |
(PCS). GSM, 1900 . | |
GSM 1900. PCS 1900. |
MoU 253 100 GSM 70 . GSM 31% . | |
GSM 179 . | |
GSM , EDGE, AMR, . | |
! |
, GSM - , GSM, , GSM.
|
|
, GSM, , , (SMS), (IN), , (MVPN). GSM , .
GSM , , , .
ETSI GSM
C GSM . GSM , , GSM . GSM, .
12 ETSI GSM, 1-4. , , ETSI.
1-2 ETSI
MS - BSS | |
MS | |
BSS - MSC | |
DCS-1800 PSC-1900 ETSI GSM-900. DCS-1800 PSC-1900 , , PSC-1900 - , American National Standards Institute (ANSI).