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Indoor Cell Planning Prepared By Atif Akhlaq
June 2008
Agenda Introduction & Objectives ●
Introduction
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Objective
Indoor Cell Planning Process ●
Capacity Dimensioning Dimensioning
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Antenna and BTS Systems
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RF Design
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Frequency Planning for Indoor GSM Systems
Conclusion
Objective Indoor GSM Systems are the Specific Solutions in Radio Network Design Where it is needed
This presentation intends to give an overview of Indoor GSM Systems
Indoor Cell Planning Process Capacity Dimensioning
What is the Aim of Indoor Application?
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Public –
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Such as Shopping Malls, Airport terminals
Business –
Business Centres
Indoor Cell Planning Process Antenna and BTS Systems Building Specifications and Coverage and Capacity Demands Antenna Design Schematic Future Extension ●
For Capacity
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For Coverage
Ø
Most Commonly Used Antenna Types
Flat Panel, Directional Antennas
•
Omni Directional Antennas
Distributed Antennas Using Coax Feeders Ø
Click to edit Master text styles Second level Third level Fourth level Fifth level ●
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Couplers & Power Splitters Click to edit Master text styles Second level Third level Fourth level Fifth level ●
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Link Budget
BTS Systems RF Repeaters ●
Easy and Quick Installation
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Low Cost
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Temporary Solution (Not Proper for Increasing Capacity)
Indoor Cell Planning Process RF Design Link Budget ●
Required Signal Strength
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Design Levels
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BTS Output Power
Indoor Cell Planning Process Frequency Planning for Indoor GSM Systems Planning with re-use of Outdoor Frequencies ●
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Better to assign manually by excluding the frequencies of surrounding cells and the adjacent frequencies Good to apply FH to smooth out the interference BTS Output Power should be increased if the available frequencies are too few.
Example of Macro Coverage Plots
Example of Indoor Coverage Plots
Up to 70% new traffic with in the Indoor cells after Implementing In-building solutions
Improve coverage and Capacity inside building using solution shows an increase of the cellular traffic with up to 70% for larger buildings. For e.g. Tunnels and metros with no presentation at all from the outdoor cellular network, all traffic will go through the in building solution.
Commercial Buildings in Karachi •
UNI center
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Custom house
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Cotton exchange
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GUL plaza shopping center
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KARACHI electronic market
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LAKSON SQUARE
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karachi Gymkhana
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Karachi club
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CIVIC center
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IT park
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RIMPA plaza
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FEDERATION HOUSE
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EMBASSY HOTEL
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HOTEL CITY GATE
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GULL BUILDING
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REGENT PLAZA HOTEL
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BEACH LUXURY HOTEL
Single Account co-operate Buildings in Karachi •
Pnsc building
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NJI building
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MCB tower
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ADAMJEE house head office
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Dawood Center
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State life building
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Defense authority Creek club
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DHA Golf club
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Park avenue
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ABN Amro bank
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STANDARD CHARTER building
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SSGC building
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JASON Trade center
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AGHA khan hospital
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FAYSAL BANK HEAD OFFICE (faysal house)
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JANG press building
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SINDH secretariat
Single Account co-operate Buildings in Karachi •
INCOME TAX building
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RADIO PAKISTAN
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AG SINH OFFICE BUILDING
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THE PLAZA
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NBP BUILDING
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STATE BANK HEAD OFFICE BUILDING
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INDUS MOTOR COMPANY
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PAKISTAN STEEL MILL
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PAK SUZUKU MOTORS
Conclusion Indoor systems can be solution if the coverage is weak from outdoor cells or causing to bad quality To build indoor systems into the buildings, which are generating high traffic, can reduce the network load by handling that traffic In developed business centres, indoor system can replace the fixed network Indoor systems are sometimes the complements that can provide a good image.
