Overview of Gsm

8/3/2019 Overview of Gsm

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2 +2 G E

2 +2 F E

2 + 2 G

E

2 + 2 F E

1 F E

4 GE

4

G E

4 G

E

2 + 2 F E

3 + 3 F E

3 + 3

F E

7 S T M - 1

7 S T M

- 1

4 S T M 1

, 4 H S L

4 S T M 1 , 4 H S L

7 S T M - 1 7

S T M

- 1

MBPN

2 + 2 F E

Turgeau-4th floor

NATCOM Mobile Network DiagramUpdated 09 – 07 – 2011

MWTU02UMG8900SPC: 3-2300 to BSC

3-2301

MSTU02MSOFTX3000SPC: 0-7301

2-11033-1300 to BSC3-1301

GT: 50933001301

BSTU03BSC6900SPC: 3-2001




TU4_PE_01_MPNE40

TU_PE_01_MPNE40

TU_PE_02_MPNE40

HLTU02HLR9820 V9SPC:3-1001GT:50933001001

CRTU01CRBTZXA1000SPC: 3-1151GT: 50933001151

HLTU01HLR9820 V9SPC:3-1011

GT:50933001011

4 GE

SDH

SCTU01SCP/OCSZXA1000SPC: 3-1051GT: 50933001051

BTSBTS3900

BTSBTS3900

BTSBTS3900

BTSBTS3900

BTSBTS3900

BTSBTS3900

MWTU01UMG8900SPC: 3-2300 to BSC

3-2302

MSTU01MSOFTX3000SPC: 0-7299

2-11023-1300 to BSC3-1302

GT: 50933001302

4 S T M 1

, 4 H S L 4

S T M 1 , 4 H S L

4 G

E

4 GE

4 GE

TU_PE_01_PSNE40

1+1 FE

1+1 FE

1+1 FE1+1 FE

1

F E

iVASSMSC, MCA, VOICE MAIL,USSDZXA1000SPC: 3-1131GT: 5093300001131

1 F E

1 F E

1 F E

1 F E

3560 3560 5952 5952 5928 5928

NodeB

PS Detail

To NE40E through ODF:SGSN: 10 GE (1Gb, 1 Iu-c, 3 Iu-u, 1 Gr, 1Ga, 3 Gn)GGSN: 7 GE (1 Gy, 1 Gi-PDN, 1 Ga, 1 Gx,

3 Gn)FW: 3 GE (Gi-internet)PCRF: 1 GE (to provisioning)

CG1: 2 GE (Ga)To Firewall:GGSN: 3 GE(Gi-internet)

NodeB

Turgeau-3rd floor

TU4_PE_02_MPNE40

TU_PE_02_PSNE40

GGTU01GGSN9811

CGTU01CG9812 2 Server

FWTU02E8080E

7 GE

1 + 1 G E

3 G E

4 GE

1 + 1 G E

RNTU01BSC6900SPC: 3-2401

Iu_PS: 2+2, Iu_CS: 2+2

Iub: 4+4 GE

SGTU01SGSN9810SPC: 1201-NATBGT: 50933001201

10 GE

3 G E

FWTU01E8080E

PCRFRM9000

BGTU01NE20E

1 + 1 G E

DNSServer 1

DNSServer 2

1 + 1 F E

1 + 1 F E



NATCOM NETWORK OVERVIEW In Natcom network overview we have six important parts, each node of parts: 1. NSS (Network Switching System) control to MSC/VLR, HLR/AuC. 2. BSS (Base Station System) controls radio access network. 3. PS (Packet Switch) control to SGSN, GGSN, Border Gateway, DNS, Charging Gateway

and Firewalls. 4. Roaming have control to Roaming replicator server, Media Device used for

international signaling connection. 5. OCS (Online Charging System) control to SCP system. 6. VAS (Value Add Service) control to CRBT, MMS, SMS. - CRBT (Color Ring Back Tone) - MMS (Multi Message Service) - SMS (Short Message Service) ABOUT NATCOM MOBILE NETWORK DIAGRAM * At Natcom we have too MSC 1-Mstu01

2-Ms tu02 On the MSC at NATCOM he can have 750000 subscriber. *NATCOM have many BTS to give the signal for the subscriber, for BSC natcom have fore

BSC to control the traffic in the BTS and for HLR we have on pair and on in on pair isstandby.



DESCRIPTION OF BSS BSS: BASE Station Subsystem

BTS (Base Transceiver Station)

BSC(Base Station Control)



DESCRIPTION OF NSS NSS: Network Switching Subsystem

Mobile Switching Center(MSC)

Home Location Register(HLR) Visitor Location Register(VLR)

Authentication Centre(AUC)

Equipment Identity Register(EIR)



FUNCTION OF BTSBase transceiver stations



FUNCTION OF BSC BSC (Base Station Controller)

The BSC is the base station BTS which manages

installed in an area data. he can manage tens of BTSand serves as an interface between the switch and theBTS mobile. and it handles the signal.

The function of the BSC is the coordination between

the radio relay and signaling ,the BSC controls and supervises a number of BTS.



FUNCTION OF MSC MSC (Mobile Switching Center)

The MSC is the central component of the NSS.

Operates all switching functions for the mobiles within its jurisdiction. Interface between mobile and other(including fixed) network. The MSC is center of thecall and when some call you the MSC is there to

control the call if you can do this call or not andcontrol the signal if the signal is not good hi make andover with orther site if hi can’t the signal blockimmediately .



FUNCTION OF MSCThe functions:

Manages the location of mobiles

Switches calls Manages Security features

Controls handover between BSCs

Resource management

Interworks with and manages network databases

Collects call billing data and sends to billing system

Collects traffic statistics for performance monitoring

http://www.pulsewan.com/data101/gsm_basics.htm

http://www.pulsewan.com/data101/gsm_basics.htm



Function OF HLR HLR (home location register)

The HLR is a data base and Home Location Register

(HLR) contains all the subscriber information for thepurposes of call control, and location determination.There is logically one HLR per GSM network, althoughit may be implemented as a distributed database.

The function is for to save all information for thesubscriber

For HLR when some one buy a SIM all the informationof this subscriber is in the HLR



Function OF VLR VLR (visitor location register)

The VLR is a data base from an MSC.

-The function of is responsible for one or several MSCareas

-The VLR is a database connected to an MSC thatstores information temporarily for each mobile in the

working area of the MSC (subscriber identity, his lastlocation area, all supplemental by it, any restriction orprohibition of establishment of the communication).



FUNCTION OF GMSC GMSC (Gateway Mobile Switching Centre)

The GMSC then processes the call conventionally. As

described in the previous scenario, The GMSC interrogates the HLR via a request MAP-

SEND-ROUTING-INFO to determine the location of the MS.



Intelligent Network IN (Intelligent Network)

The internet network is there to operate the

telecommunication.



DESCRIPTION AND FUNCTION VAS VAS (Mobile value-added services)

Mobile value-added services ( VAS) are those services thatoffer differentiation and the ability for mobile operators to

charge a premium price.

The function :

Mobile VAS include non-voice advanced messagingservices such as SMS, MMS, MIM, and UM and wireless

data services based on wireless data bearer technologiessuch as WLAN, GPRS, WAP with VAS applicationsincluding mobile gaming. Mobile VAS also includes voice-based services such as PTT and WDA.

http://www.mobilein.com/what_is_a_VAS.htm

http://www.mobilein.com/advanced_messaging.htm


http://www.mobilein.com/sms.htm

http://www.mobilein.com/MIM.htm

http://www.mobilein.com/unified_messaging.htm

http://www.mobilein.com/WLANRoaming.htm

http://www.mobilein.com/gprs.htm

http://www.mobilein.com/wap.htm

http://www.mobilein.com/push_to_talk.htm

http://www.mobilein.com/push_to_talk.htm

http://www.mobilein.com/wap.htm

http://www.mobilein.com/gprs.htm

http://www.mobilein.com/WLANRoaming.htm

http://www.mobilein.com/unified_messaging.htm

http://www.mobilein.com/MIM.htm

http://www.mobilein.com/sms.htm



http://www.mobilein.com/what_is_a_VAS.htm



INTERFACE There are three interface : UM/ABIS/A Interface

A interface: This is the interface between a BSC and aMSC.

Abis interface: The one connecting the BTS to a BSCis known as Abis interface. This is responsible for

carrying traffic and maintenance data. Is on thefeatures GSM.



SOS PROCEDURE The executor is:

In NOC the standby staff of :

1-Chief of NOC Dept2-Chief of Shift

3-Stanby staffs

-if you have a problem from you computer or on alarm

after 3 minutes you suppose to say that with my chief in my chief can report that with the chief operatingNOC standby staff make to solve problem.

Documents

Overview of Gsm