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7/30/2019 IBS Kuwait

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26th of March, 2008 1

Active Indoor SolutionTechnical Overview


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26 th of March, 2008 2

Agenda

RF Design overview

Active System overview

Success Stories


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The Challenge

Subscribers

Increasing demands on availablespectrum due to high traffic demand

High percentage of subscribersuse mobiles in-building.

Traditional optimisation tends toexclude those users

Higher quality RF inthe network required for differentiation

from competitors

Best

GSM

Network

Award


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The Requirements

The Requirement:Good In-Building Coverage with dedicated server.Cater to In-Building Capacity growth.

Optimal Cell-Site footprint. In-Building Coverage Solution:

Distributed Antenna System to allow optimalcoverage.

Active Repeater, BTS, or combination of bothbased upon capacity and coverage requirements.Objective is to providing good quality service toall calls with dedicated serving area.


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Proposed Targeted Buildings

Medium Buildings Larger Buildings

Type of Building Residential and Offices Malls, Airports

Expected # Subs 400 25000

GSM Rooms Required 1 6

Antennas Per floor 10

# of floors 20

Total # of antennas in building 200 800


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Passive Vs. Active

Passive Active

Smaller Buildings Larger Buildings

Residential, Offices Commercial

Smaller areas to cover Larger areas to cover

Less Traffic High Traffic (Possibility to increase )

Less Equipment Space required More Equipment Space required


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Medium sized Solution

Distributed Antenna Systemfor RF Distribution.

All services in DAS (2G,

2.5G, 3G).Flexible radio networkinterface.

Easy to install and maintain.

Infrastructure cost optimal.


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Possible Solutions Large Bldgs

All services in one single pairof fibers.

More than 20 km optical linkdistance from BTS hotel.Flexible radio network interface.

Centralized system managementpossible.

Easy to install and maintain.Infrastructure cost optimization.

Distributing all serviceswith one single system!2G, 2.5G, 3G, Wi-Fi


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Active Solution Added Value

Multi-band with the possibility to integrateFuture technologies( WiFi, WiMax).Multi-Operator system.High configuration along with high power.Remote location of BTS hotel in Commercialbuildings.

Centralized system management possible.


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26 th of March, 2008 10

Active Solution Added Value

Easy to install and maintain.Better utilization of equipment byutilizing less rooms.Infrastructure cost optimization.Leading operator can have higher

capacity while having the same power.


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26 th of March, 2008 11

Main Entities of the Active Solution


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26 th of March, 2008 12

Ion- M System

Considered as the high power opticalsystem.

Support the 3 bands (900, 1800, UMTS)with the possibility to add the futuretechnologies to same fiber system.

Uplink and Downlink are carried

within the same fiber link; thus onesingle mode fiber link is requiredbetween RU and OTRX.


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26 th of March, 2008 13

Planning Guidelines for an ActiveSolution

Cell Division based on the distribution of traffic and toprovide the best reuse pattern.

Link budget and Received power calculation

according to the final expansion plan.To consider the noise introduced from the activesystem and adjust the parameters of the BTSs toaccommodate the additional noise.

To consider the maximum fiber length of each link notto exceed around 20 km (point to point).


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26 th of March, 2008 14

Noise Rise Introduced (Ion-M)

Any active system introduce noise into the receiver.Each RU produce noise to the BTS, thus the limitationof having a maximum of 16 RUs/ per cell.Based on the introduced noise the sensitivity of theBTS reduces.Parameters needs to be adjusted to overcome theadded noise to the system:

2 G : Power Window to be increased.3 G : The cell capacity limited based on noise rise to beincreased.


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26 th of March, 2008 15

Noise Rise Introduced (Ion-M)

900 1800 UMTSThermal Noise -174 -174 -174Band Width 200 200 3800Thermal Noise within BandWidth -120.9897 -120.99 -108.202Required S/N (Ec/No) 9 9 -10O/P Power from BTS 43 43 43

O/P Power from RU 24 27 34Delta DL vs UL (higher UL) 15 8.5 3 Active System Gain -4 -7.5 -6Number of RUs 16 16 16NF of RUs 6 6 6NF of BTS 4 4 3Noise at the BTS(no active system connected) -116.9897 -116.99 -105.202

Noise Introduced by all RUs -106.9485002 -110.449 -96.161Noise at the BTS (Active system connected) -106.5383027 -109.579 -95.6506Sensitivity of System (no active system connected) -107.9897 -107.99 -115.202Sensitivity of System (active system connected) -97.5383027 -100.579 -105.651


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26 th of March, 2008 16

Master Unit Configuration


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26 th of March, 2008 17

MU Parts Planning

The MU part planning is basedon the requirements of theindoor solution:

The number of RUs connected per

cell (Maximum 16 RUs )The number of RUs connected toone OTRX (Max 4 RUs/per OTRXand each RU should be set towork on a different wave length)The number of operatorsconnected to the active system(default set to 4 operators).The number of cells per MU.


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26 th of March, 2008 18

MU Parts Planning (Example of 3Cells MU )

Part name Total num DescriptionION-M Master Unit 1 Connectors, cables,screws.etcOTRx 9/18/21 MU 12 Optical transciever Optical coupler 4-way E2000 1310+1550 12 To connect up to 4 RUs per OTRXSubrack 2 OTRx 6 Subrack to contain up to 2 OTRXsDpx passive 880-915 925-960 12Dpx passive 1710-1785 1805-1880 12Dpx passive 1920-1980 2110-2170 12Combiner 4-way 806-960 0-10dB 12Combiner 4-way 1710-1990 0-10dB 12Combiner 4-way 1920-2170 0-10dB 12

Splitter 1HU 2x8-way 806-960 1700-2170 9

To split RF inputs from each cabinet tofeed 4 OTRX (max per cell to feed 16RUs)

Subrack 4 PSU AC 3HU 1 Subrack to contain up to 4 PSUsPower Supply Unit AC IN 115/230V 4 PSU capable of providing 150 WattsRMC Multi-User with Modem GSM 9/18 1 Controller of the MU

Display & Keyboard drawer, 3HU 1interface to into MU controller toreconfigure, monitoring,.etc

Rack Alarm Board 1 provide alarms of the PSUs and FansSystem Alarm Board 1 For external alarmsFan set 4 Fans MU roof mount 2 for cooling the MURack 19" B 38 HU 2 Cage to contain the above

Duplexer per band to each OTRX to splitUL and DL

To combine four operators/per band/ per OTRX


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26 th of March, 2008 19

OTRX (Optical Transceiver)

The optical transceiver atwhich transfer RF (900, 1800,UMTS) Signals into opticalsignal and vise versa (Fromthe BTS side)

It can support the 3 bands or

two or one based on therequirement of the serviceprovider.


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26 th of March, 2008 20

Optical Splitter

It is used to feed 4 RUs from one OTRX.It is used in a star connection at whichthe RUs will be having a relatively closedistance.The limitation for splitting the opticalsignal of the OTRX is to reduce thepossible distance between the OTRX andthe RUs (not a limitation for indoor use)


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26 th of March, 2008 21

RF Combiners (per Band)

The RF combiners are used inorder to provide the possibility ofcombining several operators intothe active system.For each OTRX, per band, acombiner is required.The default combiners used havefour inputs, thus support up to 4operators.Within the combiner, each inputwill be having a 10 dB variableattenuator to be used for theleveling of the OTRX.


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26 th of March, 2008 22

Input Power Protection (IPP) Option

It is a protection method toensure that if the inputs at theOTRX exceeds the limits (as setin the IPP), the IPP will introduceattenuation of 15 dB.The IPP is an option and comeswithin the RF combiner.

The IPP threshold value is set 1dB higher than specified input ofthe system.


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26 th of March, 2008 23

Duplexer Units

Each UL/DL combined RF path is connectedto a duplexer to isolate uplink from downlink.For each OTRX, a duplexer is required for each

band.It is located in the interior of the MU.


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26 th of March, 2008 24

Subrack Two OTRXs

This Subrack can support:2 OTRXs2 Optical Splitters.2 (900) RF combiners.2 (1800) RF combiners.2 (UMTS) RF combiners.System alarm board.


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26 th of March, 2008 25

RMC600 (MU controller)

It can support up to 248 RUs (Cascaded or point to point).It is located on the first master rack.It can be accessed via:

Optional monitor and keyboard.RS232

LAN interface.Automatic shutdown to prevent over temperature (70 C)Automatic reboot when temperature goes down to 40 CBattery Backup which can support system operation forapproximately 1.5 hours.


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26 th of March, 2008 26

Power Supply Section

It comprise of :Power Supply UnitsPower switches(Fuses)RAB (Rack Alarm Board)

Each PSU provide 150 Watts.The system operates on the n+1 redundancy (a backup incase of thefailure of one PSU )Based on n+1 redundancy, PSU can be replaced while the system isoperational.


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26 th of March, 2008 27

Auto-Leveling Function

The loss of the fiber is equalized with anauto-leveling function controlled by theRMC-600.

The auto leveling function ensure thatthe DL as well as UL (optical signal) atboth sides (MU and RU) will be thesame.A maximum of 10 dB optical loss isallowed.


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26 th of March, 2008 28

Fiber Connection Link budget

An optical link has amaximum loss at whichif it exceeds the signalreceived will bedistorted (A maximumloss of 10 dB is set)Wave Length of thefiber connection:

UL=1550nmDL=1310nm

Quantity Loss(dB)Splicing 2 0.2Connectors 4 0.6Fiber length(Km) 20 7.2

Total Losses 8


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26 th of March, 2008 30

Leveling RF Inputs at the MU Side

An operational composite input level (for each band) at theOTRX MU side needs to be set to ensure the maximumcomposite power out of the RU.

# carriers 900 1800 UMTS1(Composite Power) 13.5 9.5 9.52 10.5 6.5 6.54 7.5 3.5 3.58 4.5 0.5

16 1.5 -2.5


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26 th of March, 2008 31


The leveling of the OTRX is based on thefollowing Diagram:

BTS/NodeBSector 1Operator 1GSM900

Combiningsection

Termination load

Dir Coupler

8 way s plitter 4 way combiner

duplexer

OTRX

Reference point for leveling

variableattenuator (10 dB)


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26 th of March, 2008 32


# carriers

Output Power After

Combining(per carrier)

Feeder loss 8 way splitter 4 way

combiner Duplexer

AchievedInput Power @ OTRX (per

carrier)without

includingCoupler +Variable

Attenuator

RequiredInput

Power @MU side

Coupler Reuired

Variableattenuator

900 6 35 2 10.5 10 2 10.5 1.5 6 31800 6 34 3 10.5 11 2 7.5 -2.5 10 0

UMTS 2 43 4 10.5 11.5 2 15 3.5 10 1.5900 16 32 2 10.5 10 2 7.5 1.5 6 01800 16 31 3 10.5 11 2 4.5 -2.5 6 1

UMTS 4 40 4 10.5 11.5 2 12 3.5 6 2.5

FutureEx

Initial


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26 th of March, 2008 33

Success Stories- LaunchedDubai Airport


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26 th of March, 2008 34

Success Stories- LaunchedDubai Airport

Dubai Airport

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26 th of March, 2008 35

Success Stories- DeploymentMall of Dubai

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26 th of March, 2008 36

Success Stories- DeploymentBurj Dubai

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26 th of March, 2008 37

Success Stories- DeploymentIndex Tower


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Thank you for listening.Please feel free to ask questions.

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