TRANSITION PATH TO IMT-2000 IN
SERBIA
ITU-BDT Workshop on guidelines on the smooth
transition of existing mobile networks to IMT-2000 for
developing countries - Arab Region
Transition Path to IMT2000
in Serbia
Divna Vuckovic, Ericsson d.o.o, Serbia&Montenegro
Director Customer Solutions & Sales Support
AGENDA
GSM/EDGE/WCDMA Seamless Network
Serbia&Montenegro Country Information
Serbia&Montenegro Telecom Market
Mobile Operators in Serbia
UMTS/WCDMA Pilot Precommercial Networks
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TRANSITION PATH TO IMT-2000 IN SERBIA
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TRANSITION PATH TO IMT-2000 IN
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Mobile Market Segmentation in
Europe
Well Developed GSM operators in Europe going
WCDMA
GSM operators still building out coverage
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TRANSITION PATH TO IMT-2000 IN SERBIA
Well Developed GSM operators
going WCDMA
The GSM and WCDMA evolution raises several
critical questions for the operator:
How can operators maximize and reuse current GSM
assets?
How can they deploy WCDMA while maintaining
profitability in GSM?
How do they best allocate investments between GSM
and WCDMA infrastructures?
How will users experience the new combined GSM and
WCDMA services?
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Well Developed GSM operators going
WCDMA
Seamless Network - Ericsson’s view on how existing GSM networks will
evolve and interwork with WCDMA
The evolution scenarios, operator needs and suggested solutions
System evolution for GSM, the introduction of third-generation (3G)
services and the integration of GSM and WCDMA to form a
seamless network
Evolution of GSM and WCDMA networks as a single, unified
seamless network that shares core, transmission, radio and
application resources.
The seamless network ensures the most efficient use of GSM and
WCDMA
Seamless user experience – transparency of services to users
Ensures operator’s investment protection in GSM/GPRS and re-use
of 2G/2.5G equipment for WCDMA networks
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TRANSITION PATH TO IMT-2000 IN SERBIA
Well Developed GSM Operators
Going WCDMA
3G Service Continuity
Challenges:
Make Applications adaptive
Surviving handover between
two Network Technologies
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Well Developed GSM Operators Not
Going WCDMA in Near Time
Roll-Out Options
• Start Building EDGE coverage in
WCDMA
EDGE
Rural
GSM/GPRS
EDGE
Sub-urban
Urban
7 (30)
dense areas
• Use GPRS as fallback initially
• Be competetive if WCDMA is
available in other networks
• Handsets available in volumes
• Low entry market segments
EDGE
Sub-urban
Rural
TRANSITION PATH TO IMT-2000 IN SERBIA
Well Developed GSM Operators Going
WCDMA
Roll-Out Options – Time-To-Market by Fast Roll Out
One EDGE TRU per cell
for coverage
EDGE roll-out
Rural
EDGE
coverage
Sub-urban
RBSs EDGE
enabled
WCDMA roll-out
WCDMA
and
EDGE
coverage
Urban
time
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Well Developed GSM Operators
Going WCDMA
Seamless Network
Common
GSM/EDGE GSM/WCDMA
WCDMA
Radio Access Core Network Radio Access
Common
- Core Network
- Transmission
- Sites
-Handsets
-Service network
- CAS
- OSS and NMS
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TRANSITION PATH TO IMT-2000 IN SERBIA
Well Developed GSM Operators
Going WCDMA
Roll-Out Scenario
EDGE roll-out in “rural” areas
(combined GSM/EDGE/WCDMA NW)
2nd Phase of EDGE deployment
due to GSM/GPRS growth
Deployment of
EDGE capable TRUs
due to GSM/GPRS growth
Final phase in WCDMA
roll-out: “Rural area
coverage”
1st Phase of
2nd Phase of
WCDMA roll-out WCDMA roll-out
EDGE rollroll-out
WCDMA rollroll-out
0%
POPULATION COVERAGE
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100%
TRANSITION PATH TO IMT-2000 IN SERBIA
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TRANSITION PATH TO IMT-2000 IN
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Well Developed GSM Operators
Going WCDMA
Common
Seamless Network - Benefits Introduced
Network Management
Applications
100% node reuse
Control
Connectivity
A/Gb /Iu
50% spectrum gain
BSC
Iu
RNC
50% transmission savings
80% co-siting
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GSM/EDGE
RBS
WCDMA
RBS
TRANSITION PATH TO IMT-2000 IN SERBIA
Well Developed GSM Operators Going
WCDMA
Seamless Network
Application Servers
Core Network
GSM/EDGE
WCDMA
Same Applications
& Devices
Seamless towards
the user
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Well Developed GSM Operators Going
WCDMA
ARPU USD/Month
ARPU per Service
3,5
3
2,5
2
1,5
1
0,5
0
Email w/ attachment
Video telephony
Playing distributed games
Music streaming
Video streaming
Video Conference
1
2
3
4
5
6
File transfer/download (documents,
audio, video, picture)
Year
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TRANSITION PATH TO IMT-2000 IN SERBIA
Well Developed GSM Operators Going
WCDMA
Penetration of mobile users per service
45%
Email w/ attachment
40%
Video telephony
35%
Playing distributed games
Music streaming
30%
Video streaming
25%
Video Conference
File transfer
20%
15%
10%
5%
0%
1
2
3
4
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Serbia and Montenegro
(former Yugoslavia)
The Republic of Serbia :
Territory: 88.361 sq.km
Population:
7,5 mil. with 110 inh./sq.km
Belgrade with 2 mil.citizens
GDP per capita 3000$ (2004)
GDP yearly increase 13%
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TRANSITION PATH TO IMT-2000 IN SERBIA
Mobile operators status in Serbia
, Mobile Telecommunications “Srbija” BK-PTT,
operates as a joint-venture company by :
1. “BK Trade”, Moscow
2. PTT “Srbija”
(51% shares – private capital)
(49 % shares – state capital)
064 TELEKOM, Mobile Telecommunications of Srbija,
operates as a joint-venture company by:
1. PTT “Srbija” (80% shares – state capital)
2. OTE Greece (20% shares – private capital)
Cross ownership of the two operators by PTT !
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Mobile market in Serbia
GSM 900/1800 operators :
1. 063 MOBTEL
(launched in 1996)
2. 064 Telekom Srbija (launched in 1998)
Total mobile subscribers: 4,7 millions (60% penetration)
Market share:
47/53 % (Mobtel/Telekom)
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TRANSITION PATH TO IMT-2000 IN SERBIA
Regulation in Serbia
Competion market, increasing the benefits in terms of price and QoS, is
not yet regulated completely.
New Telecom Act is approved in April, 2003, designed on the basis of EU
legislation ( licensing, interconnection, transparent, objective and nodiscriminatory basis, open network provision on all hierarchical level,
competion for the open market).
New Act is not yet put into force, since the management board of NRA is
not yet approved by the Parliament.
Telekom Srbija ( incumbent) operates public fixed network and mobile
network as well, with monopoly for fixed telephony until June, 2005. →
liberalization allowing new players!
No official anouncement has been issued for the IMT-2000 license,
frequency bands are still occupied by other users.
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TRANSITION PATH TO IMT-2000 IN
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Frequency bands for UTRA
(UMTS Terrestrial Radio Access)
TDD
1. 60 MHz x 2
TDD
FDD
for FDD = 1920-1980/2110-2170 MHz
(up/down link)
2. 20 + 15 MHz for TDD = 1900-1920 + 2010-2025 MHz (up+down link)
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TRANSITION PATH TO IMT-2000 IN SERBIA
Frequency bands allocated in Serbia
Frequency Plan is adopted by the Authority in Serbia, quite fully in
accordance with WARC/ITU and CEPT/ECC/ERC decisions and
recommendations.
Bands allocated for the UMTS/IMT-2000 network are:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
1900 – 1939 MHz
1930 – 1980 MHz
1980 – 2010 MHz
2010 – 2025 MHz
2110 – 2120 MHz
2120 – 2170 MHz
2170 – 2200 MHz
2500 – 2520 MHz
2520 – 2655 MHz
2655 – 2670 MHz
2670 – 2690 MHz
UMTS TDD/FDD
}
(mobile satellite component)
UMTS TDD
UMTS
(mobile satellite component)
UMTS
All bands are currently occupied and a negotiations with the User
should be finalised before the licensing procedure start.
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REGULATORY AGENCY
Set-up future requirements in the overall telecom sector regulation
process
Analyse the data from mobile market survey and define needs and
demands
Put into force the new Telecom Act
ASAP!
Main priority is to remove measures that restrict competion
Free the frequency bands for the IMT-2000 (UMTS) development
Define the principles and methods for the licensing
Define the preconditions of the licenses
Define obligations related to the universal services
Define the number of licenses, based on market potential
Proceed with the licensing process!
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TRANSITION PATH TO IMT-2000 IN SERBIA
Some key questions for 3G
evolution/migration
Licensing
2GHz frequency band occupied
Transmission network evolution both for core and access network to meet
requirements for increased flexibility, capacity and availability
Terminals availability covering GSM/GPRS/EDGE/WCDMA (handsets and
PCMCI cards)
Readiness of operator'
s organizations for 3G (resources, competencies...)
Evolution vs. migration
CS & PS handovers
Role of IMT-2000 in Corporate Social Responsibility:
The responsibility of the state/government, vendors, operators and
regulators to support new technologies bringing new dimension of
communications. Preparing for the Information Society inclusion.
Pilot 3G Network for Mobtel and Telekom Srbija
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TRANSITION PATH TO IMT-2000 IN
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Purpose of the Ericsson’s PreCommercial WCDMA/UMTS Systems
Use of WCDMA/UMTS pre-commercial trial for different kinds of load
and interoperability testing in order to prepare the operator’s network
for the fast 3G launch
To give the opportunity to operators to:
Build up competence and get hands on experience of
IMT-2000 networks and services
Implement and test end-to-end solution for a 3G system
in compliance with 3GPP R99 specs
Look into integration issues, e.g. billing and customer
care
Prepare for an early IMT-2000 launch - immediate
transition to commercially ready-for-launch network
Hold market events
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TRANSITION PATH TO IMT-2000 IN SERBIA
WCDMA/UMTS Trial
Responsibilities:
Ericsson:
Operators:
• 3G System:
• Licenses
Hardware
• USIMs
Software
• Terminals
Implementation services
• Transmission
Operation & Maintenance
• Floor Space
• Power Supply (except for RBSs)
Support
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TRANSITION PATH TO IMT-2000 IN
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Operators’ Business Plans with
Gradual Introduction of the UMTS
Relative to the GSM/EDGE
UMTS
EDGE
2006
EDGE
GSM/GPRS
GSM/GPRS
2005
UMTS
EDGE
EDGE
EDGE
GSM/GPRS
GSM/GPRS
GSM/GPRS
EDGE
2004
GSM/GPRS
GSM/GPRS
Rural
Sub-urban
EDGE used as a
complement to WCDMA
Service Continuity
Seamless Network
Business aspects for
rural areas
EDGE
2003
urban
Sub-urban
25 (30)
Rural
TRANSITION PATH TO IMT-2000 IN SERBIA
Telekom Srbija – Ericsson 3G Network
Diagram – Trial Configuration
3 4
5 6
7 8
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4 3
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Mobtel – Ericsson 3G Network
Diagram – Trial Configuration
AEROINŽENJERING
LEGEND:
TSM -1 Fiber Optic
E1
Fast Ethernet
Gigabit Ethernet
Mut
/1
Mut
/1
Mp, Gr
/2
Mp, Gr
/2
MSC Server 3.0
TKC
Iub
/1
Iu-C
/2
RXI
AERO
RBS 1
/2
/10
RXI TKC
RNC P2.1
/1
/1
O&M Interface
/1
SMSC
Existing Mobtel
GSM Network
Iu-U
Gom, Gn
/2
/2
Gom, Gn
Iu-C, Gr
/2
1 2
3 4
5 6
7 8
9
4 3
4 4
5
4
6
4
7
4
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4
ON
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S O
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m e N e tw o r ks S u m m it 4
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8 s
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/1
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1
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3 1
1
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1 1
5 6
7 1 8
1
9 2
1
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2 2
1 2
3 2
2
4 2
5 2
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2 2
7 8
9 3
2
0
1 3
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2
3 3
4
3 3
6
5
7
3
8 3 4
9 0 4 1 4 2
1 2
T M
Summit 48i
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PM
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Iub
/1
T 5 0
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Iub
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PG
/2
/1
MSC/STP 2
/2
O&M Interface
Mur /1
Mur /1
Iub
RBS 15
HLR
/2
MGW 3.0
Iu-C,
Iu-U
/2
Iub
MSC/STP 1
NS OL
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5 0
3 4
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2 2
1
2 2
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2
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1 3
3
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3 3
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9 4
3
0
4 4
1 2 4 3 4
4 5 4
6
8
7
4
Summit 48i
O&M Interface
Traffic Interface
Mur,Mub
ECDS 2.0
/2
Gn,Gom,Gi
/
0
1
RBS 16
1 1 2
3 1
1
4
5 1
1
6
1 1
7 8
9 2
1
0
1 2
2
2 2
3 4
5 2
2
6
2 7 2
8
2 3
9 0
1 3
3
2
3 3 4
5 3
3
6
3 3
7 8
9 4
3
0
1 4
4
2
RBS 20
Netgear switch
OMINF
RANOS P2.1
OSS RC1.1
2
Gn,Gom,Gi
/2
GGSN R2
Existing equipment
AXI 520 - 4
O&M Network
T
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TRANSITION PATH TO IMT-2000 IN SERBIA
End-user services that could be
offered
Voice
SMS
Basic
Services
MMS
Browsing
Gaming
Video/Music Streaming
Video Services
Mobile TV
Video Download
Videocall
“Rich Call” *
* Possibility to use multimedia services during a voice call
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TRANSITION PATH TO IMT-2000 IN
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RAN Functionalities
Radio Access Bearers Supported:
Conversational RAB for AMR speech 12.2 kbps
Conversational RAB for 64 kbps multimedia
Interactive RAB, RB 64/64 kbps (UL/DL)
Interactive RAB, RB 64/128 kbps (UL/DL)
Interactive RAB, RB 64/384 kbps (UL/DL)
Streaming RAB for non-transparent Circuit Switched data,
57.6 kbps
Speech and Packet data RAB combination
GSM Handover:
UMTS to GSM Handover (Cell Re-selection, Voice, PS
Data, MultiRab)
GSM to UMTS Handover (Cell Re-selection, Voice, PS
Data)
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TRANSITION PATH TO IMT-2000 IN SERBIA
Thank you for your attention !
Contact:
divna.vuckovic@ericsson.com
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TRANSITION PATH TO IMT-2000 IN
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