User's Manual Part 1

Maximum Output Power per Carrier
6-10 InterReach Fusion Installation, Operation, and Reference Manual
CONFIDENTIAL D-620610-0-20 Rev A
6.3.6 2.1 GHz UMTS
Designing for Capacity Growth
Fusion systems are deployed to enhance in-building coverage and/or to off-load
capacity from a macro cell site. In many instances, subscriber usage increases with
time and the wireless provider responds by increasing the load on the installed Fusion
system. For example, the initial deployment might only require two RF carriers, but
four RF carriers may be needed in the future based on capacity growth forecasts.
There are two options for dealing with this scenario:
1. Design the initial coverage with a maximum power per carrier for four RF carri-
ers. This will likely result in additional RAUs.
2. Design the initial coverage for two RF carriers, but reserve RAU ports on the Hub
for future use. These ports can be used to fill potential coverage holes once the
power per carrier is lowered to accommodate the two additional carriers.
Table 6-5 UMTS Power per Carrier
No. of
Carriers
Power per
Carrier (dBm)
WCDMA
1 15.0
2 11.0
3 8.0
4 6.5
5 5.0
6 4.0
7 3.0
Note: measurements taken with no baseband clipping.
Note: Operation at or above these output power levels may prevent Fusion from meet-
ing RF performance specifications or FCC Part 15 and EN55022 emissions require-
ments.