Rosenberger TCC | 2008-3-20 1
Rosenberger
S-Cell
In-Building Solutions
R
Rosenberger Asia Pacific Electronic Co., Ltd.
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 IBS
What is IBS
IBS = Wireless In-Building (Coverage) Solutions
Cable Jumper
Why IBS
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2.
2.
Why IBS
Why IBS
Competition between operators
Coverage request from users
Pressure between revenue and investment
Operators
investment
cost-effective and high quality network coverage
improve
Investment of operators
Service quality Retain and attract users
improve
Subscribers distribution
Indoor traffic volume distribution
Traffic volume distribution
Traffic volume distribution
2.
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2.
2.
Why IBS
Why IBS
Crowed Cities…Closely located Buildings…
3.
3.
Why IBS
Why IBS
Stadium
Hotel
Restaurant
Business
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IBS Brings
IBS Brings
…
…
3.
3.
Benefits
Benefits
Coverage
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Capacity
Increasing simultaneous communication ability
3.
3.
Benefits
Benefits
Quality
Improving wireless signal environment on the upper floors
3.
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Rosenberger
S-Cell
®IBS Package
RF
Components
RF
Components
Repeaters
Amplifiers
Repeaters
Amplifiers
Cable
Assemblies
Cable
Assemblies
In building
Antenna
In building
Antenna
• 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
How to achieve IBS
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4. How to achieve IBS
4. How to achieve IBS
BTS
Repeater
BTS
Repeater
Passive DAS
Active DAS
Optical fiber DAS
Leaky cable distribution
Passive DAS
Active DAS
Optical fiber DAS
Leaky cable distribution
Signal source
Distributed Antenna System
Structure
4. How to achieve IBS
4. How to achieve IBS
•
Increasing network capacity
•
Stable signal source
•
Good signal quality
Deploy new BTS
Indoor antenna Power splitter coupler
Distributed antenna system
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Application:
z
Traffic volume is high
zRF environment is complex
zPoor coverage
4. How to achieve IBS
4. How to achieve IBS
Deploy new BTS
20 users
50 users
New BTS
Using wireless repeater
•
Fast rollout
•
Low costs
•
Easy to accommodate
4. How to achieve IBS
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Application:
z
Poor coverage with low
traffic volume
z
The site is compact area
zOptical fiber can not reach
Repeater Signal
SC-RF repeater solution
4. How to achieve IBS
4. How to achieve IBS
Using wireless repeater
4. How to achieve IBS
4. How to achieve IBS
•
System reliability is higher
•
Easy to maintain and upgrade
Passive DAS
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4. How to achieve IBS
4. How to achieve IBS
Active DAS
•
Cost effective
•
Large coverage area
•
Flexible design and
configuration
Line Amplifier
Line Amplifier
4. How to achieve IBS
4. How to achieve IBS
Leaky cable distribution
•
Be suitable for use in tunnels
or underground railway
•
Broad frequency range，can
supply more services
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4. How to achieve IBS
4. How to achieve IBS
Optical 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 unit Remote unit Antenna Antenna 2way splitter Antenna Remote unit Antenna Antenna Antenna
How to design IBS project
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5. IBS Project Process
5. IBS Project Process
Proposal Design
Site Survey
Design Principles
Project Construction
System Commissioning
Checking & Acceptance
System Maintenance
Site survey
Site survey
Original signal information
Basic survey
Building location
( longitude & latitude )
Installing condition
Storey
plane structure
wall direction
location of equipment room
LAC
( location area code )
CID
( cell identity )
Channel number
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CDMA System Specifications
FER < 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 Principles
Design Principles
GSM system specifications
Drop-off rate < 1％ Edge level > -85 dBm Interference protection in same frequency rangeC/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 Principles
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Theory validation
Theory validation
Formula of indoor space transmission loss
Formula of space transmission loss L (dB) = 20lgd (m) + 20lgf (MHz) - 28 +α
dis the path between the antenna and the testing point, fis the carrier frequency,
αis 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
Proposal design
Proposal design
Signal source
Signal source
Distribution of electric field
Distribution of electric field
Equipments specifications
Equipments specifications
Cabling link
Cabling link
Transmission loss
Transmission loss
Construction difficulty
Construction difficulty
Acceptance criterion
Acceptance criterion
7
factors to be concerned
in
proposal design
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Proposal design
Proposal design
Proposal 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.
¾
Base Transceiver Station
¾
Micro Base Station Transceiver
¾
Tapping from the outdoor base station or macro-cell
IBS design generally consists of two main considerations.
• Signal source:
• Distributed antenna system (DAS):
¾
Passive Distribution
¾
Active Distribution(Booster, Fiber optical repeater)
¾
Antenna types (Omni-directional Antenna, Directional Antenna)
and Leaky Coaxial Cable.
Proposal design
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Typical Micro Base Station
Main Building Building - South Wing
Antenna Micro-BTS Basement 2 Basement 1 1stfloor 2ndfloor 3rdfloor Coupler/Splitter
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
Repeater
Building Base station Transceiver Site
Donor Antenna
System Outdoor Base Station
Outdoor Antenna
Base Transceiver Station (Outdoor type)
Antenna
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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 GSM1800-2Multiple system / operators
Shared DAS, lower investments
Ideal for large buildings, subways, expo,
sports center.
•
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
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