











IBS OVERVIEW
IBS means Wireless In-Building Solutions
-
Bringing the cellular service inside the building to provide better quality
-
Provided by Distributed Antenna Systems (DAS) to evenly distribute signals in every corner
WHY IBS
Increased mobile traffic and usage, driven by:
-
More capable devices
-
Increasing usage indoors
-
Demand for higher data rates and quality
-
Reduced traffic prices/flat rates
-
Increased acceptance for mobility
-
Fixed phone replacements
The in-building challenge: RF performance
-
Users receive weak signals from many base stations or no signal at all due to isolation.
-
Metallic coated windows, thick concrete walls, steel etc attenuating the signal.
-
The solution is to have a dominant signal.
The in-building Challenge: Capacity
-
Mobile service is crucial inside buildings as majority of the calls are made inside.
-
Dedicated capacity is needed inside big buildings, venues etc to improve quality and overcome the outdoor traffic congestion.
-
No impact from outdoor traffic.
WHERE DO WE NEED IBS
-
Offices/Industries
-
Airports, bus/train stations
-
Tunnels
-
Conference and exhibition centers
-
Hospitals
-
Hotels
-
Shopping Malls
-
Stadiums
-
High rise buildings
DAS
-
DAS- Distributed Antenna System
-
Distributed Antenna System (DAS) solutions provide coverage in areas where there is either no coverage or the macro environment is only partially covering.
-
DAS is the concept of distributing an RF signal by splitting over several antennas.
-
A DAS can be implemented passively using splitters and feeders, or actively using repeaters, radio remotes with transmission over fiber.
-
Passive DAS- Coax used to distribute RF signals
-
Active DAS ‐Adds RF over FO conversion, fiber, and distributed amplifier
TYPES OF IBS SOLUTIONS




SMALL CELLS
ACTIVE DAS
PASSIVE DAS
REPEATERS




