63
GSM (GLOBAL SYSTEM FOR GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION) MOBILE COMMUNICATION)

GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Embed Size (px)

Citation preview

Page 1: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

GSM (GLOBAL SYSTEM FOR GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION)MOBILE COMMUNICATION)

Page 2: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

PRESENTATION PLANPRESENTATION PLAN

• INTRODUCTIONINTRODUCTION

• CELLULAR MOBILE COMMUNICATIONSCELLULAR MOBILE COMMUNICATIONS

• GSM NETWORK ARCHITECTUREGSM NETWORK ARCHITECTURE

• MOBILITY AND TRAFFIC MANAGEMENTMOBILITY AND TRAFFIC MANAGEMENT

• GSM PROTOCOLSGSM PROTOCOLS

Page 3: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

HISTORY OF WIRELESS HISTORY OF WIRELESS COMMUNICATIONCOMMUNICATION

•1982 CEPT start to develop cell 1982 CEPT start to develop cell structurestructure

•1986 Basic GSM radio tarnsmission 1986 Basic GSM radio tarnsmission technics chosentechnics chosen

•1988 The Telecommunication 1988 The Telecommunication Standarts Instute define GSMStandarts Instute define GSM

•1989 Explanation is finished for GSM 1989 Explanation is finished for GSM Generation 1 Generation 1

•1991 First call in GSM 1991 First call in GSM

Page 4: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

• 1992 First GSM Network in the world1992 First GSM Network in the world

• 1993 GSM Network is reached 321993 GSM Network is reached 32

• 1994 First GSM Network in Africa,1994 First GSM Network in Africa,

• 1995 GSM Network is reached 1171995 GSM Network is reached 117

• 1998 120 Million User on the World1998 120 Million User on the World

• 1999 First GPRS1999 First GPRS

• 1998 480 Million User on the World1998 480 Million User on the World

Page 5: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

• 2003 863 Million User on the World2003 863 Million User on the World

• 2004 3G World Congress2004 3G World Congress

• 2007 2.4 Billion user on the world2007 2.4 Billion user on the world

Page 6: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

1st Generation1st Generation

• Start to use in 1989• Call forwarding• All calls• No answer• Engaged• Unreachable• Outgoing calls barring• Incoming calls barring• Global roaming

Page 7: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

2nd Generation2nd Generation

• Finished process in 1995• SMS(Short Message Services)• Multi Party Calling• Call holding• Call waiting• Mobile data service• Mobile fax service• Call line identity• Advice of chargingAdvice of charging• Cell broadcastCell broadcast

Page 8: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

2+ Generation

• Start to use in 1998Start to use in 1998

• Services developedServices developed

• DECT and GSMDECT and GSM

• VPN(Virtual Private Network)VPN(Virtual Private Network)

• Packet RadioPacket Radio

• SIM developmentSIM development

• Enjoyable servicesEnjoyable services

Page 9: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Mobile RadioMobile RadioCellular Mobile Cellular Mobile

CommunicationsCommunications

Page 10: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

DefinitionDefinition

– A cellular mobile comms. system uses a large A cellular mobile comms. system uses a large number of low-power wireless transmitters to number of low-power wireless transmitters to create cellscreate cells

– Variable power levels allow cells to be sized Variable power levels allow cells to be sized according to subscriber density and demand within according to subscriber density and demand within a particular regiona particular region

– As mobile users travel from cell to cell, their As mobile users travel from cell to cell, their conversations are handed off between cellsconversations are handed off between cells

– Channels (frequencies) used in one cell can be Channels (frequencies) used in one cell can be reused in another cell some distance away reused in another cell some distance away

Page 11: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Mobile Comms. PrinciplesMobile Comms. Principles

– Mobile uses a separate, temporary radio Mobile uses a separate, temporary radio channel to talk to the cell sitechannel to talk to the cell site

– Cell site talks to many mobiles at once, using Cell site talks to many mobiles at once, using one channel per mobileone channel per mobile

– Channels use a pair of frequencies for Channels use a pair of frequencies for communicationcommunication • The forward link for transmitting from the cell siteThe forward link for transmitting from the cell site • The reverse link for the cell site to receive calls from The reverse link for the cell site to receive calls from

the usersthe users

Page 12: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Mobile Comms. PrinciplesMobile Comms. Principles

• Radio energy dissipates over Radio energy dissipates over distance, so mobiles must stay near distance, so mobiles must stay near the base station to maintain the base station to maintain communicationscommunications

• BBasic structure of mobile networks asic structure of mobile networks includes telephone systems and includes telephone systems and radio servicesradio services

Page 13: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Mobile Comms. PrinciplesMobile Comms. Principles

• Where mobile radio service operates in a closed Where mobile radio service operates in a closed network and has no access to the telephone network and has no access to the telephone system, mobile telephone service allows system, mobile telephone service allows interconnection to the telephone networkinterconnection to the telephone network

Page 14: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Mobile Comms. PrinciplesMobile Comms. Principles

• Radio energy dissipates over Radio energy dissipates over distance, so mobiles must stay near distance, so mobiles must stay near the base station to maintain the base station to maintain communicationscommunications

• basic structure of mobile networks basic structure of mobile networks includes telephone systems and includes telephone systems and radio servicesradio services

Page 15: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Mobile Systems Using CellsMobile Systems Using Cells

• The cellular concept employs The cellular concept employs variable low-power levelsvariable low-power levels – cells are sized according to the cells are sized according to the

subscriber density and demand in a subscriber density and demand in a given areagiven area

• Cells can be added to accommodate Cells can be added to accommodate population growthpopulation growth

Page 16: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Mobile Systems Using CellsMobile Systems Using Cells• As with early mobile radio systems, the base As with early mobile radio systems, the base

station communicates with mobiles via a channelstation communicates with mobiles via a channel– The channel is made of two frequencies, one for transmitting to The channel is made of two frequencies, one for transmitting to

the base station and one to receive information from the base the base station and one to receive information from the base stationstation

Mobile System using Cellular architecture

Page 17: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Cellular System ArchitectureCellular System Architecture

• In modern cellular telephony, rural and In modern cellular telephony, rural and urban regions are divided into areas urban regions are divided into areas according to specific provisioning according to specific provisioning guidelinesguidelines

• Deployment parameters, such as Deployment parameters, such as amount of cell-splitting and cell sizes, amount of cell-splitting and cell sizes, are determined by engineers are determined by engineers experienced in cellular system experienced in cellular system architecturearchitecture

Page 18: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

CellsCells

• A cell is the basic geographic unit of A cell is the basic geographic unit of a cellular systema cellular system – The term The term cellularcellular comes from the honeycomb comes from the honeycomb

shape of the areas into which a coverage shape of the areas into which a coverage region is dividedregion is divided

– Cells are base stations transmitting over small Cells are base stations transmitting over small geographic areas that are represented as geographic areas that are represented as hexagonshexagons

– Size varies depending on the landscapeSize varies depending on the landscape

Page 19: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

ClustersClusters

• A cluster is a group of cellsA cluster is a group of cells– No channels are reused within a clusterNo channels are reused within a cluster

A seven Cell Cluster

Page 20: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Cell SplittingCell Splitting

• Allows urban centres to be split into as many Allows urban centres to be split into as many areas as necessary for acceptable service levels in areas as necessary for acceptable service levels in heavy-traffic regions, while larger, less expensive heavy-traffic regions, while larger, less expensive cells can be used to cover remote rural regionscells can be used to cover remote rural regions

Page 21: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

GSM NETWORK GSM NETWORK ARCHITECTUREARCHITECTURE

Page 22: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

OPEN INTERFACES OF GSMOPEN INTERFACES OF GSM

• Network Switching Subsystem(NSS)Network Switching Subsystem(NSS)

• Base Station Subsystem(BSS)Base Station Subsystem(BSS)

• Network Management Network Management Subsystem(NMS) or Operation and Subsystem(NMS) or Operation and Support Subsystem(OSS)Support Subsystem(OSS)

• They connect with Air,A,O&M They connect with Air,A,O&M interfacesinterfaces

Page 23: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS
Page 24: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

MOBILITY FUNCTIONSMOBILITY FUNCTIONS

• Registration and DatabaseRegistration and Database

• SIM (The Subscriber Identity Module)SIM (The Subscriber Identity Module)

• Location UpdateLocation Update

Page 25: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Registration and DatabaseRegistration and Database

• HLR (Home Location Register)HLR (Home Location Register)

It includes all permanent user’s It includes all permanent user’s informationinformation

• VLR(Visitor Location Register)VLR(Visitor Location Register)

It includes temporary user’s information It includes temporary user’s information according to user’s positionaccording to user’s position

• MSC (Mobile Switching Center)MSC (Mobile Switching Center)

It is an integrated structure with phone It is an integrated structure with phone exchange(Santral) exchange(Santral)

Page 26: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Databases of GSM NetworkDatabases of GSM Network

Page 27: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

SIMSIM

• It includes numbers which provide It includes numbers which provide definition of user for network definition of user for network

• It also includes reachable networks It also includes reachable networks list list

Page 28: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Location UpdateLocation Update

Page 29: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Procedure of Location Procedure of Location UpdateUpdate

Page 30: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

SET UP CALLS IN GSM SET UP CALLS IN GSM NETWORKNETWORK

• +90 400 398 0102+90 400 398 0102

• MSISDN = CC + NDC + SNMSISDN = CC + NDC + SN

• CC : Country CodeCC : Country Code

• NDC : National Destination CodeNDC : National Destination Code

• SN : Subscriber NumberSN : Subscriber Number

• GMSC : Gateway Mobile Services GMSC : Gateway Mobile Services Switching CenterSwitching Center

Page 31: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

REACH CALLS FROM PSTN TO REACH CALLS FROM PSTN TO GSM NETWORKGSM NETWORK

Page 32: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

GUİDE CALL TO GSM GUİDE CALL TO GSM NETWORKNETWORK

Page 33: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

CONTENT OF HLRCONTENT OF HLR

• MSISDNMSISDN

• IMSIIMSI

• They provide the right call, right serviceThey provide the right call, right service

IMSI = MCC+MNC+MSINIMSI = MCC+MNC+MSIN

MCC = Mobile Country Code MCC = Mobile Country Code

MNC = Mobile Network CodeMNC = Mobile Network Code

MSIN = Mobile Sucscriber Identification MSIN = Mobile Sucscriber Identification NumberNumber

Page 34: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

• MSRN (Mobile Station Roaming Number)MSRN (Mobile Station Roaming Number)MSRN = CC + NDC + SNMSRN = CC + NDC + SN

CC : Country CodeCC : Country CodeNDC : National Destination CodeNDC : National Destination CodeSN : Subscriber NumberSN : Subscriber Number

2.MSC wants to MSRN FROM HLR(Left Photo)2.MSC wants to MSRN FROM HLR(Left Photo)HLR gives MSRN to MSC for startin call(Right Photo)HLR gives MSRN to MSC for startin call(Right Photo)

Page 35: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

PROCEDURE OF CALL SET PROCEDURE OF CALL SET UPUP

Page 36: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

ProcedureProcedure

• The number is MSISDNThe number is MSISDN• PSTN central analyse the MSISDN PSTN central analyse the MSISDN

and connect to GMSCand connect to GMSC• GMSC analyse the MSISDN and send GMSC analyse the MSISDN and send

message HLRmessage HLR• HLR control databases and thrust HLR control databases and thrust

into the user’s location into the user’s location • HLR query MSC/VLR HLR query MSC/VLR

Page 37: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

• MSC/VLR produce MSRNMSC/VLR produce MSRN

• MSC/VLR send MSRN to HLR, HLR MSC/VLR send MSRN to HLR, HLR send it send it to GMSCto GMSC

• GMSC realise MSC/VLR for forwarding GMSC realise MSC/VLR for forwarding callcall

• MSC/VLR gets MSRN and starts to callMSC/VLR gets MSRN and starts to call

• MSC/VLR starts to paging process in MSC/VLR starts to paging process in location area.The user is found with location area.The user is found with paging signal and call set up paging signal and call set up

Page 38: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

PROCEDURE OF CALL SET UP PROCEDURE OF CALL SET UP FROM MOBİLE USERFROM MOBİLE USER

Page 39: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

HANDOVERHANDOVER

• TWO REASONTWO REASON

• When The Radio Signal’s quality and When The Radio Signal’s quality and power decreases to necessary scores, power decreases to necessary scores, the connection deliver to more the connection deliver to more powerful cellpowerful cell

• When The Trraffic Capacity approaches When The Trraffic Capacity approaches to maximum , the connection deliver to to maximum , the connection deliver to less density of traffic cellless density of traffic cell

Page 40: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

SIGNALS AND PROTOCOLSSIGNALS AND PROTOCOLS

• STANDART MESSAGESSTANDART MESSAGES• SENDER WANTS TO SERVICESENDER WANTS TO SERVICE• OPERATOR ASK THAT YOU WANTS TO OPERATOR ASK THAT YOU WANTS TO

TALK ,BUT WHICH USERTALK ,BUT WHICH USER• OPERATOR CONNECT TO RECEIVEROPERATOR CONNECT TO RECEIVER• WHEN THE RECEIVER REPLIES TO WHEN THE RECEIVER REPLIES TO

CALL ,THE CALL STARTSCALL ,THE CALL STARTS• WHEN THE RECEIVER OR SENDER CLOSE WHEN THE RECEIVER OR SENDER CLOSE

THE PHONE , THE OPERATOR FINISH THE PHONE , THE OPERATOR FINISH CONNECTION TO EACH OTHERCONNECTION TO EACH OTHER

Page 41: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

PROCEDURE OF SIGNALSPROCEDURE OF SIGNALS

Page 42: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

COMMON CHANNEL COMMON CHANNEL SIGNALLING SYSTEM SIGNALLING SYSTEM

• MTP(MASSAGE TRANSFER PART)MTP(MASSAGE TRANSFER PART)

• TUP(TELEPHONE USER PART)TUP(TELEPHONE USER PART)

• SSCP(SIGNALLING CONNECTION AND SSCP(SIGNALLING CONNECTION AND CONTROL PART)CONTROL PART)

Page 43: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

MTP(MASSAGE TRANSFER MTP(MASSAGE TRANSFER PART)PART)

Page 44: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

PHYSICAL CONNECTIONPHYSICAL CONNECTION It includes data links and their propertieIt includes data links and their propertie

DATA LINK CONTROLDATA LINK CONTROL

It helps to transfer messages between It helps to transfer messages between component of network perfectlycomponent of network perfectly

NETWORK LAYERNETWORK LAYER

It provides to transfer messages It provides to transfer messages between component of network between component of network

Page 45: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

TUP(TELEPHONE USER TUP(TELEPHONE USER PART)PART)

Page 46: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

• User’s identificationUser’s identification

• Who get this messages or signalsWho get this messages or signals

• Who make a process this signalWho make a process this signal

• TUP,NUD,ISUP help to set up calls TUP,NUD,ISUP help to set up calls and they make same taskand they make same task

Page 47: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

SIGNALLING CONNECTION AND SIGNALLING CONNECTION AND CONTROL PARTCONTROL PART

Page 48: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

• It provides virtual connections It provides virtual connections

• It guarentee to transfer messages It guarentee to transfer messages from every signals point to every from every signals point to every signals point securesignals point secure

• It provides multi-point It provides multi-point communicationcommunication

Page 49: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

BrieflyBriefly

• MTP transmit messagesMTP transmit messages

• TUP use this messages.It sets up TUP use this messages.It sets up calls,manages calls and finishes callscalls,manages calls and finishes calls

• SCCP create virtual connections and SCCP create virtual connections and multi-point communicationmulti-point communication

Page 50: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

OTHER SS7 APPLICATION IN OTHER SS7 APPLICATION IN GSM NETWORKGSM NETWORK

• BSSAP(Base Station Subsystem BSSAP(Base Station Subsystem Application Part)Application Part)

• MAP (Mobile Application Part)MAP (Mobile Application Part)

• TCAP (Transaction Capabilities TCAP (Transaction Capabilities Application Part)Application Part)

Page 51: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

BASE STATION SUBSYSTEM BASE STATION SUBSYSTEM APPLICATION PARTAPPLICATION PART

It provide MSC-BSC and MSC-MS It provide MSC-BSC and MSC-MS communicationcommunication

SCCP service is required SCCP service is required

Page 52: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

MOBILE APPLICATION PARTMOBILE APPLICATION PART

• Before the call is guided to HLR, MSRN is wanted Before the call is guided to HLR, MSRN is wanted from HLR , so the another protocol is added SS7 from HLR , so the another protocol is added SS7 which is called MAPwhich is called MAP

• It provides to communicate between Component It provides to communicate between Component of Network Switching Subsystemof Network Switching Subsystem

• MAP only uses for non-call-related messaging in MAP only uses for non-call-related messaging in MSC-MSC communicationMSC-MSC communication

Page 53: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

TCAP (Transaction Capabilities TCAP (Transaction Capabilities Application Part)Application Part)

It manages to communication It manages to communication in MAPin MAP

It likes a secretaryIt likes a secretary

Page 54: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

SS7 LAYER IN COMPONENT OF SS7 LAYER IN COMPONENT OF GSM GSM

• SET OF PROTOCOL IN MSCSET OF PROTOCOL IN MSC

• SET OF PROTOCOL IN HLRSET OF PROTOCOL IN HLR

• SET OF PROTOCOL IN BSCSET OF PROTOCOL IN BSC

Page 55: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

SET OF PROTOCOL IN MSCSET OF PROTOCOL IN MSC

Page 56: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

MSC control callsMSC control calls

• MTP is required for all components MTP is required for all components which works with SS7which works with SS7

• TUP/ISUP is reuired for callsTUP/ISUP is reuired for calls

• It has all components of layers in SS7It has all components of layers in SS7

Page 57: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

SET OF PROTOCOL IN HLRSET OF PROTOCOL IN HLR

Page 58: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

• It does not intersest control of calls, It does not intersest control of calls, so TUP/ISUP is not necessaryso TUP/ISUP is not necessary

• It does not connect directly, so It does not connect directly, so BSSAP is not necessaryBSSAP is not necessary

Page 59: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

SET OF PROTOCOL IN BSCSET OF PROTOCOL IN BSC

Page 60: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

• BSS AP is only requiredBSS AP is only required

• SCCP services are necessrary SCCP services are necessrary

• Consequently MTP is requiredConsequently MTP is required

Page 61: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

SS7 PROTOCOLS IN DIFFERENT SS7 PROTOCOLS IN DIFFERENT NETWORK COMPONENTSNETWORK COMPONENTS

Page 62: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

Next table show functions of Next table show functions of SS7 Protocols for all SS7 Protocols for all components of GSM network components of GSM network

Page 63: GSM (GLOBAL SYSTEM FOR MOBILE COMMUNICATION). PRESENTATION PLAN INTRODUCTION INTRODUCTION CELLULAR MOBILE COMMUNICATIONS CELLULAR MOBILE COMMUNICATIONS

MSCMSC BSCBSC HLRHLR

MTPMTP It provides to It provides to transfer the transfer the messages of messages of SS7 between SS7 between different different network network componentscomponents

It provides to It provides to transfer the transfer the messages of messages of SS7 between SS7 between different different network network componentscomponents

It provides to transfer the messages of SS7 It provides to transfer the messages of SS7 between different network componentsbetween different network components

TUP/TUP/ISUPISUP

It provides to It provides to set up, manage set up, manage and control the and control the callscalls

No existNo exist No existNo exist

SCCPSCCP It provides It provides connectionless connectionless communication communication and virtual and virtual connectionsconnections

It provides It provides virtual virtual connection connection between MSC between MSC

and MSand MS

Connectionless CommunicationConnectionless Communication

BSSAPBSSAP It provides GSM It provides GSM communication communication between BSC between BSC and MSand MS

MSC and GSM MSC and GSM communicationcommunication

No existNo exist

MAPMAP It It pprovides rovides basic basic communication communication between HLR between HLR and other MSCand other MSC

No existNo exist It provides basic communication between It provides basic communication between MSC and HLRMSC and HLR

TCAPTCAP It provides to It provides to connect service connect service to MAP to MAP

No existNo exist It provides to connect service to MAPIt provides to connect service to MAP

INAPINAP It provides It provides communication communication via Intelligent via Intelligent NetworkNetwork

No existNo exist It provides communication via Intelligent It provides communication via Intelligent NetworkNetwork