UMTS Model Tuning - RF Cafe Forums
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Post subject: UMTS Model Tuning
Posted: Fri Aug 08, 2008 12:05 pm
Joined: Thu Feb 15, 2007
Regarding UMTS Model Tuning
In my project
for UMTS model tuning,
We performed CW measurements
using the following:
Nemo outdoor 4 to collect
RSSI, Omni antenna transmitting at 2127.5 MHz with
Now the customer asked us to validate
the model using the following:
TEMS data collection
8.2.1 for live sites to pick up RSCP using Directive
antennas (3 Sectors with mechanical and electrical
tilt) transmitting at 2122.4 MHz
- My questions,
is that logic to validate our model by receiving
modulated signals transmitted from tilted directive
antenna while our model was built depending on unmodulated
signals transmitted from Omni antenna with zero
- What are the rule
of modifying the through clutter losses and clutter
offsets values? When should I give it positive values
and when should I give it negative values?
For TEMS drive test,
- Could we
use the mobile handset as a scanner instead of the
common RF scanner?
- I tried to collect data
in the Idle mode and I noticed that there's a difference
between TEMS route "shown in TEMS Map window" and
exported log file table "shown in MapInfo".......the
difference is just a repeated data which cause nonsense,
so why I got these repeated data? And how could
I disable it?
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