In-Building-Wireless System Solutions

• RF Source (needed for all DAS solutions)
• BDA/Repeater – Bidirectional Amplifier brings in RF from the outdoor cellular network
• Antenna on roof line of sight to macro tower
• BTS carrier – carrier installed base transceiver station provides dedicated RF
• T1 or IP connectivity links base to cellular hub

• Passive Distributed Antenna Systems (DAS)
• RF is distributed over coax cables to each antenna from an RF source (repeater or base station)
• Coax cable losses limit their effectiveness in large buildings for higher frequency transmissions

• Active Distributed Antenna Systems (DAS)
• Fiber-optic cabling backbone overcomes the transmission losses that occur with coax-based system
• Electric components convert and amplify signals to RF for radiation by the antenna
• Preferred solution for medium to large buildings