Download - MOBTEL's Migration Path to 3G
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ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
MOBTEL’s Migration Path to 3G
Radmila SimicProject Manager for Strategic Development
ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
The Union of Serbia and Monte Negro
The Republic of Serbia :
§Territory: 88.361 sq.km
§Population: - 9,2 mil. - 7,5 mil. with 110 inh./sq.km
(without Kosovo)
§Capital: 2 mil. citizens
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ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
Serbian market
GSM operators : 1. MOBTEL (started in 1996)
2. “Telekom Srbija” (started in 1998)
Total mobile subscribers: 3 millions
Total mobile penetration: 40%
Market share: nearly 50/50 %
Internet penetration: 6% with 47 providers → pure fixed lines
GDP per capita : 2370 USD → developing country
GDP growth : 3 %
ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
Operator’s status
§ MOBTEL, the Company for Mobile Telecommunications “Serbia” BK-PTT,ltd. operates as a joint-venture company founded in 1994 by :
1. “BK Trade” (51% shares – private capital)2. PTT “Srbija” (49 % shares – state capital)
§ TELEKOM, operates as a joint-venture company :
1. PTT “Srbija” (80% shares – state capital)2. OTE Greece (20 % shares – private capital)
§ TELEKOM operates as a public fixed network operator as well, with monopoly until Jun, 2005.→ liberalization !
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ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
Regulation
§ Competion market is not yet regulated.
§ New Telecommunication Law will be put into force in the first half of the next year (licenses,interconnection, transparent,
objective and no-discriminatory basis, competion, ...).
§ No official anouncement has been issued by the National Authority for the IMT-2000 license.
§ IMT-2000 frequency bands are occupied by other users.
ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
MOBTEL GSMCoverage ofthe Republic of SerbiaCurrent Status
§ territory coverage: 70%.§ population coverage: 94%.
Need to enlarge coverage !
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ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
Key figures for the Mobtel network
§ Standard: GSM 900/1800, Phase 2+§ Network size: 6 MSC+1 TSC, 430 BTS§ Release : R9.1§ GPRS: in the whole network for post&prepaid; roaming is testing§ EDGE: pilot§ Vendor: ERICSSON (NSS, BSS, IN, PPS, WAP, MVPN, GPRS, MMS )
Comverse (SMS, VMS)§ Transport network: MW (PDH Ericsson, SDH Marconi)§ VAS: SMS-email, MMS, Internet, Intranet, GSM Pro, etc.§ VMNO: Astra Simit ( company as service and applications provider)
ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
Objectives of Mobtel’s Business in 2003
§ Subscribers: 1,6 millions (Post/PrePaid = 20%/80%) with 22% penetration growth
§ Service monthly usage: 150 min/postpaid customers 25 min/prepaid customers
§ SMS monthly : 90 millions messages
§ SMS in bussy hour: 230k BHSM
§ ARPU: 20 USD per postpaid customers
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ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
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date
MBit
GPRS traffic↑start
June 03 Nov 03
GPRS TRAFFIC
• 65.000 users (13.000 instant.)
• 40 KB/user• BH around 24h
Mostly are for WAP !
ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
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Total messages sentSuccess messages sentPush messagesReceived messagesReceived E-mail
Multimedia messages in Nov. 03
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ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
MULTIMEDIA SERVICES
§It takes time to build markets !
§40% are for video§20% are for shoping
VIVO FOR ALL
VIVO MMS
VIVO ENTERTAINMENT
VIVO PROMOTION
ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
0
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1000000
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2000000
2500000
3000000
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Exp
ecte
d nu
mbe
r of
sub
scri
bers GSM
WAP
GPRS
EDGE
UMTS
MMS
2001. 2002. 2003. 2004. 2005. 2006.
Projected Mobtel’s growth through the year 2006
Voice servicesstill main driver !
Need to create content and social motion !
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ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
§Due to ongoing standardization work specifications for GSM were grouped into “Releases” enabled industry to proceed with the development including monstrous SW !
§Operators have been forced to implement all enhancements generally annuel introducing numerous new features and technological improvements.
§Similarly operators could expect this gradualprocess will continue, opening the path for the migration to 3G services.
Releases
ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
§Operators should set requirements and overall strategy for clear objectives that meet market’s need.
§The debate over 3G migration procedures could be described as economical matter and users need for new applications.
§There are real concerns that wrong choice will lead operators in the developing countries to costs to highcomparing to the investment in building a network expansion and delivering innovated services to 2G customers.
Consideration
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ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
GSM operators could concern several models to decide on 3G transition strategy :
1. Continue building out the existing GSM/GPRS network to launch 3G data servicies with the EDGE upgrading and postpone the deployment of the 3G network for the later stage.
2. Continue building out the existing GSM/GPRS network improving quality and capacity and begin in paralel deploying 3G network only in urban areas for high-end-users.
3. Immediately start to deploy 3G network nationwide for the high-end data services.
Models for 3G transition strategy
ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
Analysing the factors involved in technology evolution decision
§ Operators are evaluating technology evolution options and determine the best strategy based upon its specific situation and many factors, including :
§ Spectrum availability§ Subscriber maturity
§ Mobile Internet services§ Competition§ Handsets§ Financial situation
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ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
Analysing the factors involved in transition options
§ As a GSM operator in the developing country with low economy status and subscriber base still mostly voice-centric, MOBTEL has decided to upgrade its network firstly with EDGE technology for 3G service implementation.
§ EDGE is included as a complement to 3G systems path to provide 3G data services demanding by market in a cost efficient way.
To make a decision rather simple !§Gradual investments§ Simple service migration§ High network infrastructure reusability
ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
STRATEGY
§ The MOBTEL`s strategy is to achieve high-quality GSM and GPRS network with the EDGE system upgrading nationwide and to start with 3G technology at moderate speed starting in major cities with high population at the stage when 3G frequencies will be available.
§ New 3G system requires substantial new investment, since a new Radio Access Network needs to be deployed.
§ To make reuse possibility of many of the service network components as well as other peripheral systems.
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ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
3G STANDARDIZATION
§MOBTEL has adopted the UMTS system with W-CDMA as an option of the migration path from GSM to the 3G system and services providing high capacity link of up to 2 Mbit/s to each user.
§ Ability to coexist and interworking UMTS system with the existing GSM/GPRS/EDGE network should be the right choice to enable seamless functionality between two systems.
§The decision to evolve from GSM to a seamless GSM/GPRS/EDGE/UMTS network as a migration path is the best solution for our company and our customers.
ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
Service development in Phases
MOBTEL as a 2,5G operator, have recognized three distinct phases in the evolution towards 3G services as the market evolves. According to Ericsson`s White Paper :
§ Phase I – voice centric§ Phase II – high speed data and mobile Internet§ Phase III – high speed multimedia and maturing mobile Internet
Choosing WCDMA deployment at moderate speed MOBTEL will remain in Phase I and Phase II for a longer period to continue with coverage and capacity expansion, and then slowly enter in Phase III.
In our case study I think 2G will be for a long time to fill the gaps for where we have not really got 3G coverage.
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ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
GSM CS data services
9.6 kbps
96 0100 02 03 04 05 0698 9997
GPRS/EDGE 384 kbps
UMTS2 Mbps
Year
Functionality
GSM/GPRS160 kbps
Data service evolution in Mobtel network
→ Mobtel GPRS network currently support 48 kBit/s, based on QoS
3G
2,5G
2G
Long period Short period
ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
MSC/VLR HLRSMS
GW -MSC
BSC
A’’
BTS
BTS
A SS-7
GSM/GPRS Architecture (current status)
PCUPCU
Gs Gr Gd
Gb
Other PLMNs
GGSNGGSN
Gb Gn Gi
SGSNSGSNMobile ISP
WAPRadius
Gn
Frame Relaybackbone
ISP
Corporate
Gp
HostRadius
HostRadius
PXMBGwNTPDNS
Gi
Gi
IP backbone
Gi
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ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
GSM Infrastructure
MSC/VLR HLR SMSGW -MSC
BSC
A’’
BTS
BTS
A SS-7
PCUPCU
Gs Gr Gd
Gb
Other PLMNs
GGSNGGSN
Gb Gn Gi
SGSNSGSNMobile ISP
WAPRadius
Gn
Frame Relaybackbone
ISP
Corporate
Gp
HostRadius
HostRadius
PXMBGwNTPDNS
Gi
Gi
IP backbone
Gi
IP Infrastructure
Frame RelayInfrastructure
ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
GSM /EDGE
BSS
UTRAN
GSMSpecific
UMTSAddition
MSC
IN SCP
HLR/AAA
UMTS
GMSC
UMTS
GGSN
UMTS
PSTNISDN
PSTNISDNGSM
Radio Access
UMTS Radio Access Internet
Intranet
InternetIntranet
EVOLUTION to UMTS in GSM/GPRS/EDGE environment - The most cost-effective option -
GSMSpecific
UMTSAddition
2G
2G3G
3GSGSN
Service Delivery Platform
Application server Application server
Core networkAccess network
Wideband384 kbit/s wide area2 Mbit/s local area
Narrowband 64/115 kbit/s wide area384 kbit/s local area
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ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
CONCLUSION
§ ECONOMIC ASPECTS WITH THE COSTS OF THE POSSIBLE OPTIONS.
§ MINIMIZE THE COSTS OF MANAGING EXISTING 2G AND A NEW 3G
NETWORK.
§ COEXIST AND SHARE THE SAME INFRASTRUCTURE.
§ MARKET DEVELOPMENT FOR MOBILE DATA AND INTERNET.
§ DEVELOPMENT OF IP-BASED MMS.
FAQ: Still many questions about 3G →
ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
FAQ
§ How much will it cost ?§ How will make it work efficiently ?§ What benefits will we get from it ?§ Coexistance between GSM and UMTS ?§ Possible network architecture ?§ Interworking approaches ?§ What parts of GSM core infrastructure can be used for UMTS core network ?§ Understanding tha phasing of the core network ?§ Functionality within UMTS interfaces and UTRAN protocols ?§ Comparison of GSM/UMTS coverage ?§ Planning the UMTS radio network design ?§ What are the security of the UMTS SIM ?§ Users experience in handover or roaming between 2G and 3G network ?
We have still many questions about real life experience in implementing 2G(GSM) / 3G/UMTS seamless network:
Equipment manufacturers will need to offer complex handsets in time !
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ITU-BDT SubRegional Seminar on IMT-2000 Ljubljana 1-3/12/03
MOBTEL’s Migration Path to 3G
Radmila SimicProject Manager for Strategic development
Thank You!