PBCCH
PBCCH , BCCH GSM, . PBCCH, BCCH.
PCCCH
, , .
PPCH
downlink. MS . PPCH , . PPCH GPRS I.
PRACH Packet Random Acces Channel, uplink. PRACH MS uplink .
PAGCH Packet Access Grant Channel downlink . MS .
PNCH Packet Notification Channel downlink. PTM-M (Point-to-Multipoin Multicast) MS PTM-M. PNCH DRX. DRX GPRS 1.
PCCH - Packet Associated Control Channel , MS. , , . PCCH . PDTCH, MS. , MS, , , MS .
PTCCH/U - Packet Timing advance Control Channel uplink. MS, .
PTCCH/D - Packet Timing advance Control Channel downlink.. MS. PTCCH/D PTCCH/U.
PDTCH
. PTM-M, MS . , MS PDTCH . , PDTCH/U uplink, PDTCH/D downlink.
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5 -
. 5.1
5.1
5.1
| MSC/ VLR | Mobile services Station Center/ Visitor Location Register | / | |
| GMSC | Gateway MSC | MSC | |
| HLR | Home Location Register | ||
| ILR | Interworking Location Register | ||
| AUC | Authentication Center | ||
| EIR | Equipment Identity Register | ||
| DTI | Data Transmission Interface | ||
| - | MC | Message Center |
5.2. / (MSC/VLR)
MSC
MSC GSM. MS. :
. MSC : , , (). MSC , , MS , PSTN.
. MSC . MSC , , , .
. MSC . (SMS) MSC.
HLR. , MSC HLR MS. HLR MSC[5]. VLR. . .
MSC. , MSC.
BSC. BSS MS SS, BSS BSC, MSC. MSC MSC BSC. MSC BSC , , BSC.
. MSC (ISP - Internet Service Provider) , PSTN. MSC , . , , , TIGRIS Ericsson. MSC, .
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. 5.2 GSM/PSTN ( )
. 5.3
(VLR)
VLR GSM , MSC. , MSC VLR. , MSC HLR ( ) , .
. 5.4 HLR VLR
MS :
1. VLR () , , MS ( IMSI).
2. , VLR MS, HLR .
3. HLR VLR MS . HLR VLR, .
4. VLR , MS (IDLE).
VLR MS MSC MS, :
.
(, )
MS (IDLE)
MS (LA)
