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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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
March 22, 2004March 22, 2004
AgendaAgenda
• IntroductionIntroduction
• System ArchitectureSystem Architecture
• MethodologyMethodology
• Problems and AchievementsProblems and Achievements
• Future DirectionFuture Direction
• Questions and CommentsQuestions and Comments
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
March 22, 2004March 22, 2004
System ArchitectureSystem Architecture
–– Ajeet Kumar Ajeet Kumar NankaniNankani
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
March 22, 2004March 22, 2004
System ArchitectureSystem Architecture
E1
BTS
E1BSC MSC
GSM/GPRS Core Network
HLR
VLR
CGSN
FW / NAT
Internet
PSTN
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
March 22, 2004March 22, 2004
System ArchitectureSystem Architecture
E1
BTS
E1BSC MSC
GSM/GPRS Core Network
HLR
VLR
CGSN
FW / NAT
PSTN
Internet
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
March 22, 2004March 22, 2004
System ArchitectureSystem Architecture
E1
BTS
E1BSC MSC
GSM/GPRS Core Network
HLR
VLR
CGSN
FW / NAT
Internet
VoIP(SIP) Gateway
SIP Phone PC with SIP Client (SUA)
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
March 22, 2004March 22, 2004
Project MethodologyProject Methodology
–– Rajkrishna Rajkrishna SrinivasanSrinivasan
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
March 22, 2004March 22, 2004
Testing and AcceptanceTesting and Acceptance
• TestingTesting
• AcceptanceAcceptance
• HandoverHandover
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
March 22, 2004March 22, 2004
Problems and Problems and AchievementsAchievements
–– Ning Zhou Ning Zhou
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
March 22, 2004March 22, 2004
Future DirectionFuture Direction
–– Joakim Andersson Joakim Andersson
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
March 22, 2004March 22, 2004
Future DirectionFuture Direction
• GPRSGPRS
• GSM coverage extensionGSM coverage extension
• VoIP propositionVoIP proposition
• Business modelBusiness model
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
March 22, 2004March 22, 2004
GPRSGPRS
• Mobile station attachMobile station attach
• Access to external networkAccess to external network
• SMS over GPRSSMS over GPRS
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
March 22, 2004March 22, 2004
GSM Coverage ExtensionGSM Coverage Extension
• New base stationNew base station
• Configuring cell handoversConfiguring cell handovers
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
March 22, 2004March 22, 2004
VoIPVoIP
• GatewayGateway
• Address translationAddress translation
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
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
Midterm Presentation CommunicMidterm Presentation Communication System Design 2004 ation System Design 2004
March 22, 2004March 22, 2004
Questions and CommentsQuestions and Comments
•E-mailE-mail csd2004-team16@csd2004-team16@csdcsd..ssvlssvl..kthkth.se.se
•Web pageWeb page http://http://csdcsd..ssvlssvl..kthkth
.se/~csd2004-team16.se/~csd2004-team16
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