IDAS Solution Indoor Distribution Antenna System

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