march 22, 2004 midterm presentation communication system design 2004 attractive features free...

Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004

March 22, 2004March 22, 2004

Attractive FeaturesAttractive Features

•Free Calls ...Free Calls ...

•Free Mobile Internet Free Mobile Internet Services ...Services ...

KPGKPG22

Kista Private GSM/GPRSKista Private GSM/GPRS

Ajeet Kumar NankaniAjeet Kumar Nankani

Joakim AnderssonJoakim Andersson

Ning ZhouNing Zhou

Rajkrishna SrinivasanRajkrishna Srinivasan

Workshet LamenewWorkshet Lamenew


March 22, 2004March 22, 2004

AgendaAgenda

• IntroductionIntroduction

• System ArchitectureSystem Architecture

• MethodologyMethodology

• Problems and AchievementsProblems and Achievements

• Future DirectionFuture Direction

• Questions and CommentsQuestions and Comments


March 22, 2004March 22, 2004

IntroductionIntroduction

• Recent phenomena in the Wireless Recent phenomena in the Wireless and Mobile Networks – access to and Mobile Networks – access to integrated services integrated services

• Need to improve such systemsNeed to improve such systems

• Monaco – establish test bed for Monaco – establish test bed for Research and EducationResearch and Education

• KPGKPG22 – the recent project – the recent project


March 22, 2004March 22, 2004

GoalsGoals

• Provide GSM/GPRS services covering Provide GSM/GPRS services covering Forum, Kista IP, and the surrounding areasForum, Kista IP, and the surrounding areas

• Explore ways of integrating new services Explore ways of integrating new services like VoIP-SIP and formulate an like VoIP-SIP and formulate an implementation plan for integrating VoIP-implementation plan for integrating VoIP-SIP with the GSM systemSIP with the GSM system

• Look into the business aspect of local Look into the business aspect of local GSM/GPRS systems using IP network and GSM/GPRS systems using IP network and prepare a business planprepare a business plan


March 22, 2004March 22, 2004

BenefitsBenefits

• Foundation for subsequent projects Foundation for subsequent projects and research worksand research works

• Providing local GSM/GPRS servicesProviding local GSM/GPRS services

• Business plan proposalBusiness plan proposal

• Skill developmentSkill development


March 22, 2004March 22, 2004

System ArchitectureSystem Architecture

–– Ajeet Kumar Ajeet Kumar NankaniNankani


March 22, 2004March 22, 2004


E1

BTS

E1BSC MSC

GSM/GPRS Core Network

HLR

VLR

CGSN

FW / NAT

Internet

PSTN


March 22, 2004March 22, 2004


E1

BTS

E1BSC MSC


HLR

VLR

CGSN

FW / NAT

PSTN

Internet


March 22, 2004March 22, 2004


E1

BTS

E1BSC MSC


HLR

VLR

CGSN

FW / NAT

Internet

VoIP(SIP) Gateway

SIP Phone PC with SIP Client (SUA)


March 22, 2004March 22, 2004

Project MethodologyProject Methodology

–– Rajkrishna Rajkrishna SrinivasanSrinivasan


March 22, 2004March 22, 2004

Project MethodologyProject Methodology FAIL TO PLAN AND PLAN TO FAIL TO PLAN AND PLAN TO FAILFAIL

• Defining the TaskDefining the Task

• Splitting the TaskSplitting the Task

• Competence DevelopmentCompetence Development

• Periodic Self ReviewPeriodic Self Review

• Periodic External ReviewPeriodic External Review

• Testing and AcceptanceTesting and Acceptance


March 22, 2004March 22, 2004

Defining the TaskDefining the Task

• Understand the taskUnderstand the task

• Discuss with the customer – what Discuss with the customer – what exactly he/she wants?exactly he/she wants?

• Document it and share itDocument it and share it


March 22, 2004March 22, 2004

Splitting the TaskSplitting the Task

• Identify key people Identify key people for various tasksfor various tasks

• Assign Assign responsibilities to responsibilities to every team every team membermember

• However, the However, the project is a project is a teamworkteamwork

Ning

Workshet Joakim

Raj

Ajeet

KPG2


March 22, 2004March 22, 2004

Competence DevelopmentCompetence Development

• In our project, access to the In our project, access to the documentation is crucialdocumentation is crucial

• The information collected is then The information collected is then studied and knowledge sharing is studied and knowledge sharing is done in the form of seminarsdone in the form of seminars


March 22, 2004March 22, 2004

Periodic Self ReviewPeriodic Self Review

• Weekly self review is performedWeekly self review is performed

• Flaws are identified and ironed outFlaws are identified and ironed out

• Everything is documented and Everything is documented and project plan is updated if necessaryproject plan is updated if necessary


March 22, 2004March 22, 2004

Periodic External ReviewPeriodic External Review

• The external review is got from the The external review is got from the coaches and principalcoaches and principal

• They informed whether we are on They informed whether we are on tracktrack


March 22, 2004March 22, 2004

Testing and AcceptanceTesting and Acceptance

• TestingTesting

• AcceptanceAcceptance

• HandoverHandover


March 22, 2004March 22, 2004

Problems and Problems and AchievementsAchievements

–– Ning Zhou Ning Zhou


March 22, 2004March 22, 2004

Encountered ProblemsEncountered Problems

E1

AXN 600

BTS

AXN 800

E1

BSC

CGSN

MSC

Container GSM/GPRS Core Network

HLR

VLR

Internal network

Internet

• ProblemProblem– GSM GSM

coveragcoveragee

– SecuritySecurity

– GPRS GPRS serviceservice

– VoIP-SIPVoIP-SIP


March 22, 2004March 22, 2004

Achievements – CoverageAchievements – Coverage

AXN 800

E1

BSC

CGSN

MSC

GSM/GPRS Core Network S98

HLR

VLR

E1

AXN 600

BTS

Internet


March 22, 2004March 22, 2004

AXN 800

E1

BSC

CGSN

MSC

GSM/GPRS Core Network S98

HLR

VLR

E1

AXN 600

BTS

Internet

Achievements – SecurityAchievements – Security

FW / NAT


March 22, 2004March 22, 2004

Achievements – GPRSAchievements – GPRS

• GPRS partGPRS part– Checked the cablingChecked the cabling– Re-installed the software in CGSN nodeRe-installed the software in CGSN node– Almost finished the configurationAlmost finished the configuration


March 22, 2004March 22, 2004

Achievements – Achievements – VoIPVoIP

• VoIP-SIPVoIP-SIP– Pre-study is donePre-study is done– Now, concentrating on the Now, concentrating on the differences differences

between SIP between SIP client client originating calloriginating call andand MS originating callMS originating call


March 22, 2004March 22, 2004

Future DirectionFuture Direction

–– Joakim Andersson Joakim Andersson


March 22, 2004March 22, 2004

Future DirectionFuture Direction

• GPRSGPRS

• GSM coverage extensionGSM coverage extension

• VoIP propositionVoIP proposition

• Business modelBusiness model


March 22, 2004March 22, 2004

GPRSGPRS

• Mobile station attachMobile station attach

• Access to external networkAccess to external network

• SMS over GPRSSMS over GPRS


March 22, 2004March 22, 2004

GSM Coverage ExtensionGSM Coverage Extension

• New base stationNew base station

• Configuring cell handoversConfiguring cell handovers


March 22, 2004March 22, 2004

VoIPVoIP

• GatewayGateway

• Address translationAddress translation


March 22, 2004March 22, 2004

Business Business modelmodel

• Market analysisMarket analysis– CompetitionCompetition– CustomersCustomers– SuppliersSuppliers– RegulationsRegulations

• SWSWOOT analysisT analysis– StrengthStrengthss and Weaknesses and Weaknesses– Opportunities and ThreatsOpportunities and Threats

• StrategiesStrategies• Revenue and cost calculationRevenue and cost calculation


March 22, 2004March 22, 2004

Questions and CommentsQuestions and Comments

•E-mailE-mail csd2004-team16@[email protected]

•Web pageWeb page http://http://csdcsd..ssvlssvl..kthkth

.se/~csd2004-team16.se/~csd2004-team16

march 22, 2004 midterm presentation communication system design 2004 attractive features free...

Documents

project plan

implementation plan

goalsprovide gsmgprs

integrated services

new services

kista ip

ip network

mobile networks access