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IDAS Solution Indoor Distribution Antenna System - PowerPoint PPT Presentation


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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

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Presentation Transcript
definition of idas
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
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
Different Applications

Small

  • Small Building,
  • A lot of traffic
  • Quantity of antennas < 20 pcs
different applications1
Different Applications

Medium

  • Apartment Buildings (Residential, Commercial)
  • A lot of traffic
  • Quantity of antennas is around 100 pcs
different applications2
Different Applications

Large

  • Large buildings, Shopping malls, Airports
  • High traffic
  • Quantity of antennas > 150 pcs
wireless repeater idas1
Wireless Repeater IDAS

CAPEX* Capital Expenditure

  • Features

Low traffic

Sample system coverage

  • Consider

Easy & short time Installation

Low investment of CAPEX*

Wireless Access

  • Application
  • Small Building, Villa…
bts idas system
BTS-IDAS system
  • BTS will be used instead of repeaters in the cases that repeater can not provide the sufficient traffic.
slide12

Passive IDAS system

  • Features

Medium traffic

Sample system coverage

  • Application

Medium buildings, basement

  • Consider

Limited BTS output power

BTS room required

Capacity low efficient

disadvantages of passive idas
Disadvantages of Passive IDAS
  • BTS 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

slide16

Active IDAS system

  • Features

high traffic

Large system coverage

  • Application

Large buildings, Urban Residential, Shopping malls

Stadiums, Metro Stations, Airports

multiple band active idas1
Multiple Band Active IDAS
  • Components & Antenna

Passive component and feeder

suitable for 800~2500MHz

  • Combiner

Dual or Multiple band access

  • Equipment
  • GSM900 MHz Optical Repeater
  • GSM1800 MHz Optical Repeater
  • 3G 2100 MHz Optical Repeater