1) The document discusses the installation and commissioning of a Nokia Flexi EDGE BTS. It provides an overview of the GSM system and BTS functions. 2) It describes the various components of the Nokia Flexi EDGE BTS including the EDGE System Module (ESMA), Dual TRX Module (EXxA), Dual Duplexer Module (ERxA), and Wideband Combiner (EWxA). 3) The commissioning process involves 12 steps like hardware installation, software configuration, RF parameter checks, traffic tests and O&M integration to activate the BTS in the live network.

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 PRESENTED BY,
 SAURABH BANSAL
 B.TECH (ECE)
 Vth SEM
A TRAINING ON BTS NOKIA
INSTALLATION AND
COMMISSIONING
 SUMITTED TO :-
 DEPT. OF ECE

2. Contents
• Introduction about GSM system and BTS
Function.
• Overview about BTS NOKIA (Flexi EDGE
BTS).
–Outstanding features of Flexi EDGE BTS
–Somes main Features of Flexi EDGE BTS
–Guideline to Commissioning
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3. NOKIA FLEXI EDGE BTS
INSTALLETION
COMMISSIONING
AND
PLANNING
BASE TRANSCEIVER STATION
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4. SAURABH BANSAL B,.TECH ECE v SEM
. Monkey Wrench
Side Cutter
. Crimping Tool for 16Sq.mm to 70Sq.mm cables.
. Torque Wrench set 6.7 – 101.7 NM . And 1 NM
Cable ties cutter
.Measuring Tape (30M).
.Flash light ,pocket lamp or torch.
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5. SAURABH BANSAL B,.TECH ECE v SEM
. Hammer Drill
. Drill with screw driver
. Marker Pen or Comparable tool
. Multigrip Pliers
. Leveling tool
. Extension Board.
. Tool Case
. Scissor
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6. SAURABH BANSAL B,.TECH ECE v SEM
TEST EQUIPMENTS REQUIRED FOR COMMISSIONING
1.VSWR METER
2. POWER METER
3. SITE MASTER
4. DIGITAL MULTIMETER
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7. WHAT IS GSM?
• GSM is a TDMA based wireless network technology
developed in Europe that is used throughout most of
the world. GSM phones make use of a SIM card to
identify the user's account. The use of the SIM card
allows GSM network users to quickly move their
phone number from one GSM phone to another by
simply moving the SIM card. Currently GSM networks
operate on the 850MHz, 900MHz, 1800MHz, and
1900MHz frequency bands.
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8. GSM SYSTEM
PSTN
ISDN
PSPDN
Um Interface
BTS
BTS
BTS
BTS
OMC (NOC and O&M)
HLR/AUC/EIR
BSC
MSC/VLR
SMC/VM
A Interface
MAP
M
AP
TUP,ISUPMS
MS
MS
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9. WHAT IS USE OF GSM BTS IN FUTURE?
• Two highlights in the rich development of the 3G
networks are advanced technologies and high
efficiency.
• the GSM network is the most widely applied
network in the world.
• the GSM network is still favored and constantly
evolves due to the maturity of technical applications
and business models.
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10. Features of Flexi EDGE BTS & its fun
– Interface between MS and BSC
– Transmission function, which manage transfer
of traffic and control data between BTS and
BSC.
– O&M Functions, which supervise the
operation of the BTS.
– External Alarm collection.
– Measure Uplink and downlink signal.
….
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11. SOME KINDS OF NOKIA BTS
 Talk Family
 Flexi talk (900/1800 2TRX)
 City talk (900/1800 6TRX)
 Intratalk (900/1800 6TRX)
1. Flexi talk GSM 900/1800 BTS 2TRX.
– Flexitalk is Mini BTS located insite the house, office.. where another
Network can’t cover it. It have only 2 TRX, using twisted cable or
coaxial cable (2Mbit/s).
1. City talk (900/1800 6TRX)
– Called Indoor BTS, it can be able to use any where. Maximum
capacity is 6TRX. All kind of transmission is supported.
1. Intratalk (900/1800 6TRX)
– Called outdoor BTS,
– important position in the network
 Ultra site:
 Maximum capacity is 12TRX.
 Support GPRS, EDGE
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12. SOME KINDS OF NOKIA BTS
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13. NOKIA FLEXI EDGE BTS
• Features
– FLEXI EDGE BTS is a Modular base station for
GSM/EDGE capacity and coverage.
– Easy to install, reduce..
– Taking the temparature from -33°C …+50 °C
– Support up to 24 TRX (12 hual TRXs)
– Support Double Power TRX
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14. CONSTRUCTION OF FLEXI BTS
AND PREPARATION OF SITE
• System module (ESMA)
• Dual TRX module (EXxA)
• Dual duplexer module (ERxA)
• Transmission module
• Power module
• Wideband combiner (EWxA)
EXTA – GSM800
EXGA – GSM900
EXDA – GSM1800
EXPA – GSM1900
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15. EDGE SYSTEM MODULE (ESMA)
• Main features:
– Module for BTS common functionalities and internal/external
connectionsSupports up to 6 DTRX modules (up to 12TRX)
– 5 main functions of the module:
• BTS O&M: SW downloading and storing (2 * BTS SW),
configuration management, reference clock and alarms
• BB switching: communication between modules via Ethernet
switch
• BTS power distribution: single point for power intake and power
distribution to all modules
• The BTS Software is stored in ESMA.
• Connect to BSC by Abis interface
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16. PDU (power
distribution
unit)
48V intake
Site support
system, MIBBU
alarms (6), Aux
equipment Q1,
Local
Management Port
(LMP)
6x Ethernet to
DTRX
PDU (power
distribution unit)
6x48V to other
modules
O
ut
1xEAC
(External
Alarm &
Control)
12x alarm
inputs+6x
control
outputs
In
Synchronization
EDGE SYSTEM MODULE (ESMA)
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17. EDGE SYSTEM MODULE
(ESMA)
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18. EDGE DUAL TRX MODULE (EXxA)
The Dual TRX Module is a two-carrier TRX.
Support Double Power TRX (DPTRX).
RF part with 2 independent transmit (TX) chains and 4 receive
(RX) chains
When using 2 TRX we have to use EWxA to combine 2
transceivers in one.
• DTRX connected to system module via single Gigabit Ethernet
interface
• Power feed from system module via single cable
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19. EDGE DUAL TRX MODULE (EXxA)
4xRX TX 2
0-2xWideband combiners
1xBus
1xDTRX-DDU 1xPower
Phase feedback from WBC (DPTRX)
TX 1
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20. DUAL DUPLEXER MODULE (ERxA)
• Dual duplexer (DDU) module together with Dual TRX create a logical Sector
module
–Min 1 DDU per sector is needed
–DDU is attached to DTRX module
• DDU provides
–duplex functionality to combine TX and RX signals to same antenna feeder
–multicoupling
–2 antenna connections (for 1 or 2 sectors)
• 2 TX inputs and 4+4 RX outputs (4 RX from antenna 1 and 4 RX from
antenna 2)
• DDU contains
–2 duplex filter
–2 Low Noise Amplifiers (LNAs) with high/low gain support for RX signal
–2 Bias-Ts with VSWR measurement functionality
• TRX loop is controlled through the DDU
–Common TRX loop for all TRXs in same sector
–Loop can be performed from either TX to any of 8 RX outputs (only 1 TX and 1
RX can be simultaneously tested
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21. DUAL DUPLEXER MODULE (ERxA)
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22. WIDEBAND COMBINER (EWxA)
• TxA, TxB use to combine 2 TxA
and TxB of EXxA.
• Out is connected to ERxA (after
combining.
• DP When use DPTRX.
– EWGA 850/900 MHz Bands
– EWDA 1800 MHz Band
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23. The connection from ERxA to EXxA
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24. Cable Connections
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2 TRX/1Sector
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4 TRX/1Sector
Cable Connections
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26. The general requirements for the
commissioning of gsm bts
1. Commissioning Resources:-
PC , Multimeter, Ethernet cable , GSM MSs for testing
Site Master, Light emitting diode (LED),Flat-head
screwdrive,Serial port cable
Site Information.
Board Software.
2. Commissioning Prerequisites:-
Hardware Requirements.
Software Requirements,
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27. COMMISSIONING STEPS
Step 1
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28. nov-1228
Step 2
COMMISSIONING STEPS
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29. Step 3
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COMMISSIONING STEPS
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30. 30
Step 4
COMMISSIONING STEPS
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31. COMMISSIONING STEPS
31
Step 5
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32. COMMISSIONING STEPS
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Step 6
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33. COMMISSIONING STEPS
Step 7 (1.5 and 2.7)
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34. COMMISSIONING
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Step 8
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35. COMMISSIONING STEPS
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Step 9
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36. COMMISSIONING
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Step 10
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37. COMMISSIONING STEPS
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Step 11
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38. COMMISSIONING STEPS
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Step 12
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39. COMMISSIONING STEPS
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40. Thanks for your attention.
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