19
7
Donor options (i.e. antenna
location options, measure).
Outdoors best, but may be indoor
if well RF isolated from CU
coverage zones.
Bring quality service indoors by measuring donor signal
quality where donor antennas are practical (where
allowed, cable penetration available, isolated from CUs).
8
Discuss cabling route options
(LAN and Coax).
Consider low coax loss to NU(s), NU placement, LAN
cabling to CUs, NU internet connection and power
outlet.
Planning – Step 2. Estimating Hardware Needs
Given the results of the survey process, use your preferred modelling and estimation method to
generate a budgetary equipment bill of materials (BOM).
The online QUATRA PLANNER TOOL (QPT) is recommended and can also be used at this stage.
www.cel-fi.com/quatra/plan
Planning – Step 3. Determine NU Donor (Off Air or Small Cell) Location
A.
If using an outdoor donor antenna
a.
Donor antenna system gain (in dBi) minus coax loss should be
≥
5 dB
, for best results.
b.
For best results the donor antenna should have as much isolation as possible from
the other system components, in particular the CUs.
c.
CUs should be placed at least 10 meters from any NU.
d.
QUATRA uses QMA connectors at the NU.
QMA-RA to N adapter kits are available from Nextivity.
Model: D12-20114-2002
Nextivity also offers a variety of other adapters specific for connectors used in the
QUATRA solutions.
www.cel-fi/com/quatra
B.
If using a small cell, make sure to understand the small cell’s installation requirements,
provided by the small cell vendor.
a.
Does the small cell require external access to GPS signal?
b.
Is the Internet feed at the location sufficient in terms of bandwidth and availability?
c.
Is there sufficient space for the Small Cell Interface (SCIF) to be used?
