GPRS MS, BSS. BSS : , . GPRS BTS .
BSS , , , MSC. GPRS.
(CSS)
CSS SS GSM, (. 1, 1.7: GSM).
GPRS MSC, GSM/GPRS, , MS (Attach): IMSI/GPRS.
GPRS GMSC, GSM PSTN.
HLR , , , GPRS. , HLR , . , , / GPRS , (Access Point Name APN) (Internet Service Provider ISP), , MS IP. HLR (context subscription) PDP. HLR 5 PDP . HLR SGSN. HLR, SGSN.
HLR GPRS .
(AUC)
AUC - GPRS. AUC GPRS , GPRS 5.
MSC (SMS-IW-MSC) MS GPRS SMS GPRS. SMS-IW-MSC GPRS.
(PSS)
PSS , GPRS. (IP). , GSN ( GPRS). GPRS: GPRS (SGSN) GPRS (GGSN). SGSN GSM, , MSC/BSC, GGSN , , .
|
|
GGSN
MS, GPRS.
: MS GPRS GSM. , MS (attach), , , .. , . MS .
: MS GSM GPRS, / , .
: MS , , attach. MS GSM, GPRS, . .
(Biling Gateway BGw).
BGw GPRS , GPRS . , Advanced Processing .
GPRS , . , / , . GPRS , . .
SGSN GGSN, , MSC CDR . CDR :
S-CDR, SGSN.
G-CDR, GGSN.
CDR, , GPRS.
GPRS S-CDR G-CDR.
BGw . BGw , , , . , .
GPRS
GPRS SGSN GGSN, GPRS. .
|
|
GPRS (SGSN)
SGSN GPRS, . 4.2. BSC, MSC/VLR, SMS-G HLR. (backbone network) GGSN SGSN.
. 4.2 SGSN
SGSN GPRS, SGSN. SGSN GPRS , , MSC GSM. , MS, .. GPRS SGSN .
SGSN.
GPRS SGSN . (). SGSN MS . , , IMSI GPRS, , , , .
. MS , SGSN , SGSN GPRS.
(LA) GPRS. GPRS (Routing Area RA). RA . RA LA.
PLMN, PLMN. SGSN Gs MSC/VLR MS A B, :
- / GPRS/IMSI. IMSI attach SGSN. / . MS.
- . MS IMSI/GPRS , ( I), MSC/VLR SGSN. . , , , GPRS GPRS.
- ( LA RA) GSM GPRS. MS , LA MSC RA SGSN. Gs : MSC SGSN , . .
(Session Management SM)
SM (PDP), .
PDP , MS GGSN.
SGSN , :
- PDP - , PDP.
- PDP. PDP. IPv4.
- PDP. . IPv4, , .
|
|
- (APN). , : wap.beeline.ru
- (QoS). QoS, .
PDP SGSN , - (PDU) MS MS.
SGSN PDP, . SGSN . SGSN , ISP .
( , SMS), ( /, PDP).
GPRS ETSI S-CDR (SGSN), G-CDR (GGSN) SMS CDR.
CDR :
- S-CDR: MS, RA, , , SGSN , , , .
- G-CDR: , , , .
- CDR , CDR, PDP, . CDR GPRS.
CDR GPRS , 15 , . , 72 .
:
- (, );
- CDR;
- CDR;
- (RAM);
- (RAM);
- .
GGSN
SGSN GGSN ( ) (PDP), (APN) . (Domain Name Server) SGSN, APN. SGSN GPRS (GTP) GGSN .
. 4.3 GGSN
GPRS
: SGSN GGSN. IP , . IP, GPRS.
GPRS ETSI, GPRS. GPRS . GPRS : RIP v2, OSPF v2, BGP v4 ( ).
GPRS. OSPF v2.