User's Manual Part 1

Hardware Installation Guide Introduction
02030311-05 Airspan Networks Ltd. 1-19
In Figure 1-9, BSR A is part of a WipLL base station that is connected to the service
provider’s backbone. BSR A serves multiple SPRs, marked as SPR Ai. Two SPRs—
SPR B1 and SPR B2—cannot communicate directly with the base station.
Therefore, an SPR acts as a repeater by connecting back-to-back with BSR B (SPR
B1 and B2 are served by BSR B).
Notes:
- Careful planning is required to cope with issues such as interferences and
delay that are introduced by the repeater solution. For example, if the system is
used as a frequency hopping system, GPS may be required at each base
station.
- Space and frequency isolation between the “repeater SPR” and BSR B is
required.
- Bandwidth management should be calculated to support the “repeater
bandwidth”.
- IP addressing and routing tables should be configured to support the
repeater solution.