Download - IBS Overview
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Rosenberger TCC | 2008-3-20 1
Rosenberger S-CellIn-Building Solutions
R
Rosenberger Asia Pacific Electronic Co., Ltd.
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Today’ s topics
1. What is IBS
2. Why IBS…
3. IBS Benefit…
4. How to achieve IBS
5. How to design IBS
6. Why Rosenberger
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1.1. What is IBSWhat is IBSIBS = Wireless In-Building (Coverage) Solutions
CableJumper
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Why IBS Why IBS ……
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2.2. Why IBSWhy IBSCompetition between
operatorsCoverage request from
usersPressure between revenue
and investment
Operators
investment
cost-effective and high quality network coverage
improve
Investment of operatorsService quality Retain and attract
users
improve
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Subscribers distribution
Indoor traffic volume distribution
Traffic volume distributionTraffic volume distribution
2.2. Why IBSWhy IBS
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2.2. Why IBSWhy IBSCrowed Cities…Closely located Buildings…
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3.3. Why IBSWhy IBS
Stadium
Hotel
Restaurant
Businessmansion
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IBS BringsIBS Brings……
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3.3. BenefitsBenefits
Coverage
Solving the problem about no wireless signal area
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Capacity
Increasing simultaneous communication ability
3.3. BenefitsBenefits
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Quality
Improving wireless signal environment on the upper floors
3.3. BenefitsBenefits
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Rosenberger S-Cell ® IBS Package
RF
Components
RF
ComponentsRepeaters
Amplifiers
Repeaters
Amplifiers
Cable
Assemblies
Cable
Assemblies
In buildingAntenna
In buildingAntenna
• RF Repeater• Fiber Optic Repeater• Line Amplifier
• Feeder Cable• Connector• Jumper
• Coupler• Splitter• Combiner• POI• Attenuator
• Yagi Antenna• Ceiling Mounted Antenna• Panel Antenna
- Site Survey
- System Design
- Installation
- Commissioning
- Troubleshooting
- Training
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How to achieve IBSHow to achieve IBS……
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4. How to achieve IBS4. How to achieve IBS
BTS Repeater
BTS Repeater
Passive DASActive DAS
Optical fiber DASLeaky cable distribution
Passive DASActive DAS
Optical fiber DASLeaky cable distribution
Signal source Distributed Antenna System
Structure
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4. How to achieve IBS4. How to achieve IBS
• Increasing network capacity• Stable signal source
• Good signal quality
Deploy new BTS
Indoor antennaPower splittercoupler
Distributed antenna system
SC-RF BTS solution
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Application:
Traffic volume is high
RF environment is complex
Poor coverage
4. How to achieve IBS4. How to achieve IBS
Deploy new BTS
20 users 50 usersNew BTS
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Using wireless repeater
• Fast rollout• Low costs• Easy to accommodate
4. How to achieve IBS4. How to achieve IBS
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Application:
Poor coverage with low traffic volumeThe site is compact area Optical fiber can not reach
Repeater Signal
SC-RF repeater solution
4. How to achieve IBS4. How to achieve IBS
Using wireless repeater
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4. How to achieve IBS4. How to achieve IBS
• System reliability is higher
• Easy to maintain and upgrade
Passive DAS
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4. How to achieve IBS4. How to achieve IBS
Active DAS
• Cost effective
• Large coverage area
• Flexible design andconfiguration
Line Amplifier
Line Amplifier
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4. How to achieve IBS4. How to achieve IBSLeaky cable distribution
• Be suitable for use in tunnels or underground railway
• Broad frequency range,can supply more services
• Superior performance
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4. How to achieve IBS4. How to achieve IBSOptical fiber DAS
• Laser technology with high linearity• Low noise and high reliability• Broader frequency range• Small optical transmitting loss
Base Station Fibre Optic Master Unit
Antenna Antenna
Remote unit
Antenna Antenna
Remote unitRemote unit
Antenna
Antenna
2way splitter
Antenna
Remote unitAntennaAntenna
Antenna
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How to design IBS projectHow to design IBS project……
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5. IBS Project Process5. IBS Project Process
Proposal Design
Site Survey
Design Principles
Project Construction
System Commissioning
Checking & Acceptance
System Maintenance
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Site surveySite survey
Original signal informationBasic surveyBuilding location( longitude & latitude )
Installing condition
Storey
plane structure
wall direction
location of equipment room
LAC ( location area code )
CID ( cell identity )
Channel number
Signal strength
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CDMA System SpecificationsFER < 1 %
Outdoor overflow signal < -90 dBm
Typical power at antenna port 5 ~ 15 dBm
TX < - 10 dBm
Rx_level > - 85 dBm
Ec/Io in 90% of area > - 8 dB
Design PrinciplesDesign Principles
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GSM system specificationsDrop-off rate < 1%
Edge level > -85 dBm
Interference protection in same frequency range
C/I ≥12 dB(without frequency hopping)
C/I ≥9 dB( frequency hopping)
Uplink noise < -121 dBm
Typical power at antenna port 5 ~ 15 dBm ( except for lift well )
Outdoor overflow signal < -85 dBm
Hand-over success probability > 95 %
Area with RxQual better than level 3 > 95 %
Turn-on rate > 95 % (more than 95% area can be turned on)
Design PrinciplesDesign Principles
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Theory validationTheory validationFormula of indoor space transmission loss
Formula of space transmission lossL (dB) = 20lgd (m) + 20lgf (MHz) - 28 +αd is the path between the antenna and the testing point,
f is the carrier frequency,
α is transmission loss in : glass = 6~10dB partition =10~15dB prefab board =20~30dB
30 meters
S
(1) Power on antenna port:8dBm
(2) 30 meters free space transmission loss: -60dB
(3) Antenna gain:G=2.1dBi
(4) Partition loss + multi-path loss: -25dB
(5) The signal strength of point (S): PR=8 +2.1-60 -25= -74.9dBm
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Proposal designProposal design
Signal sourceSignal source
Distribution of electric fieldDistribution of electric field
Equipments specificationsEquipments specifications
Cabling linkCabling link
Transmission lossTransmission loss
Construction difficultyConstruction difficulty
Acceptance criterionAcceptance criterion
7 factors to be concerned in proposal design
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Proposal designProposal designProposal design
General Design Engineering Material list
Project general
Foundation
Engineer scale
Principle
System specs.
Equipment specs.
Site survey
Source selection
Antenna location
System configuration
Simulation
Spillover analysis
Device room
Cable layout
Component installation
Equipment list
Accessories list
Tech. Specs.
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Base Transceiver StationMicro Base Station TransceiverTapping from the outdoor base station or macro-cell
IBS design generally consists of two main considerations.
• Signal source:
• Distributed antenna system (DAS):Passive DistributionActive Distribution(Booster, Fiber optical repeater)Antenna types (Omni-directional Antenna, Directional Antenna) and Leaky Coaxial Cable.
Proposal designProposal design
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Typical Micro Base Station
Main Building Building - South Wing
Antenna
Micro-BTS
Basement 2
Basement 1
1st floor
2nd floor
3rd floor
Coupler/Splitter
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FOR—Point to Multi-Point
BTS
Master Unit
Rx Tx/Rx Remote unit
BTS
Master Unit
Rx Tx/Rx
Remote unit
Remote unit
Remote unit
Remote unit
Remote unitSingle fiber transmission by Wavelength Division Multiplex (WDM). One Master Unit supports up to 4 Remote Units.
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Typical Wireless Repeater
Antenna
RepeaterBuilding
Base station Transceiver Site
Donor Antenna
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System Outdoor Base Station
Outdoor AntennaBase Transceiver Station(Outdoor type)
AntennaCoupler
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POI - Point of Interface
Multi-system Combination
ANT2
GSM1800-1
GSM1800-3
GSM1800-2
Load
ANT2
Monitor2
ANT1
ANT1
Monitor1
GSM1800-1
GSM1800-3
GSM1800-2
Multiple system / operatorsShared DAS, lower investmentsIdeal for large buildings, subways, expo, sports center.
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•Complete Product Offer – Technical innovation– Versatile and wide range of product lines– Expertise in turnkey solutions
•Customer Oriented Approach– Consultative sales & customer service team– Customized products & solutions
•Consistent Global Quality Standard– Localized production fully consistent to Rosenberger’s global quality standards– System Performance Guarantee
•Value-added services– Flexible production planning system – Strong logistic chain.– Local regional warehouses
The One-Stop Shopping Experience at Rosenberger !
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Thank you!Thank you!Thanks for your attentions!Thanks for your attentions!