idas solution indoor distribution antenna system
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IDAS Solution Indoor Distribution Antenna System. Definition of IDAS. Indoor Distribution Antenna System Distribute mobile communication signal inside buildings to provide coverage for the blind areas & shadow areas - PowerPoint PPT PresentationTRANSCRIPT
IDAS SolutionIndoor Distribution Antenna System
Definition of IDAS Indoor Distribution Antenna
System Distribute mobile communication
signal inside buildings to provide coverage for the blind areas & shadow areas
Provide steady quality signals to collect the indoor mobile traffic.
Why IDAS?In 2G network− About 70% of Voice traffic come from Indoor. − About 30% of Voice traffic come from outdoor. In 3G network.− About 65% of Data service come from Indoor.− About 35% of Data service come from outdoor.
Different Applications
Small• Small Building, • A lot of traffic• Quantity of
antennas < 20 pcs
Different Applications
Medium• Apartment Buildings
(Residential, Commercial)
• A lot of traffic• Quantity of antennas
is around 100 pcs
Different Applications
Large• Large buildings,
Shopping malls, Airports• High traffic• Quantity of antennas >
150 pcs
Wireless Repeater IDAS
Wireless Repeater IDAS
CAPEX* Capital Expenditure
FeaturesLow trafficSample system coverageApplicationSmall Building, Villa…
ConsiderEasy & short time InstallationLow investment of CAPEX*Wireless Access
Wireless Repeater IDAS system
BTS-IDAS system• BTS will be used instead of repeaters in the cases that repeater can not provide the sufficient traffic.
Passive IDAS system
FeaturesMedium trafficSample system coverage
ApplicationMedium buildings, basement
ConsiderLimited BTS output power BTS room requiredCapacity low efficient
Passive IDAS system
Passive IDAS system
Disadvantages of Passive IDASBTS Output power is not enough.A lot of RF loss is in feeder transmission.Cost of RF feeder is so high.
To solve these problems we can use Active IDAS system
Active IDAS system
Featureshigh trafficLarge system coverageApplicationLarge buildings, Urban Residential, Shopping mallsStadiums, Metro Stations, Airports
Active IDAS system
Multiple Band Active IDAS
GSM 900
GSM 1800
Multiple Band Active IDAS
Passive component and feeder suitable for 800~2500MHz
Dual or Multiple band access
•GSM900 MHz Optical Repeater•GSM1800 MHz Optical Repeater•3G 2100 MHz Optical Repeater
Components & Antenna
Combiner
Equipment
Thank you