This slide set gives guaranteed RF performance values measured in room temperature for GSM900, GSM1800 and GSM1900 Nokia UltraSite EDGE BTS. These values can be used for customer tenders and as network planning values. The notes below explain how BTS output power and receiver sensitivity values are defined. BTS Output Power Minimum output power measured at the BTS antenna connector with the maximum power level. Output power values are with GMSK modulation. With 8-PSK modulation the values will be 2…3 dB less. GSM1800 has different values for sub-banded (A/B) and full-band combining units. BTS Receiver Sensitivity Minimum BTS sensitivity value measured at BTS antenna connector (without MHA) or at MHA input connector when MHA is used. BTS sensitivity value with MHA is with high gain mast head amplifier especially designed for UltraSite BTS. Maximum feeder loss can be 7 dB in GSM900 and 10 dB in GSM1800/1900. Note that there is no full-band MHA available. Dynamic sensitivity covers GSM specified fading profiles TU50, HT100 and RA130/250. Receiver sensitivity value with diversity covers all fading profiles. Receiver sensitivity with diversity reception assumes 0 correlation between signals. Correlation between signals varies according to fading environment and antenna characteristics.

1. 1www.TempusTelcosys.com
Telecom Tutorials

2. Nokia UltraSite EDGE BTS
RF Performance
Timo A Niemi
Version 2.0
08.08.2001

3.  This slide set gives guaranteed RF performance
values measured in room temperature for
GSM900, GSM1800 and GSM1900 Nokia UltraSite
EDGE BTS. These values can be used for customer
tenders and as network planning values.
 The notes below explain how BTS output power
and receiver sensitivity values are defined.
 BTS Output Power
◦ Minimum output power measured at the BTS antenna
connector with the maximum power level.
◦ Output power values are with GMSK modulation. With 8-
PSK modulation the values will be 2…3 dB less.
◦ GSM1800 has different values for sub-banded (A/B) and
full-band combining units.

4.  BTS Receiver Sensitivity
◦ Minimum BTS sensitivity value measured at BTS antenna
connector (without MHA) or at MHA input connector when
MHA is used.
◦ BTS sensitivity value with MHA is with high gain mast head
amplifier especially designed for UltraSite BTS. Maximum
feeder loss can be 7 dB in GSM900 and 10 dB in
GSM1800/1900. Note that there is no full-band MHA
available.
◦ Dynamic sensitivity covers GSM specified fading profiles
TU50, HT100 and RA130/250.
◦ Receiver sensitivity value with diversity covers all fading
profiles.
◦ Receiver sensitivity with diversity reception assumes 0
correlation between signals. Correlation between signals
varies according to fading environment and antenna
characteristics.

5. Combiner by-pass
WBC 2:1
WBC 4:1
RTC
Output power
dBm W
Max # of TRXs / Frequency
antenna element hopping
42.0
44.5
41.0
37.5
15.8
28.2
12.6
5.6
1
2
4
6
RF & BB
RF & BB
RF & BB
BB
BTS Output Power
Static, single branch
w/o MHA with MHA
Dynamic, single branch
2-way diversity (all profiles)
4-way diversity (all profiles)
-110.5 dBm -111.0 dBm
-108.5 dBm -109.0 dBm
-113.5 dBm -114.0 dBm
-116.5 dBm -117.0 dBm
BTS Receiver Sensitivity

6. WBC 2:1
WBC 4:1
RTC
Combiner by-pass
Output power
dBm W
Max # of TRXs /
antenna element
Frequency
hopping
42.0 / 41.3
44.5 / 44.0
41.0 / 40.3
37.5 / 36.6
15.8 / 13.5
28.2 / 25.1
12.6 / 10.7
5.6 / 4.6
1
2
4
6
RF & BB
RF & BB
RF & BB
BB
BTS Output Power
SB / FB
Static, single branch
w/o MHA with MHA
Dynamic, single branch
2-way diversity (all profiles)
4-way diversity (all profiles)
-112.0 /-111.5 dBm -112.5 dBm
-110.0 /-109.5 dBm -110.5 dBm
-115.0 /-114.5 dBm -115.5 dBm
-118.0 /-117.5 dBm -118.5 dBm
BTS Receiver Sensitivity
SB / FB SB

7. WBC 2:1
WBC 4:1
RTC
Combiner by-pass
Output power
dBm W
Max # of TRXs / Frequency
antenna element hopping
42.0
44.5
41.0
37.5
15.8
28.2
12.6
5.6
1
2
4
6
RF & BB
RF & BB
RF & BB
BB
BTS Output Power
Static, single branch
w/o MHA with MHA
Dynamic, single branch
2-way diversity (all profiles)
4-way diversity (all profiles)
-111.0 dBm -112.0 dBm
-109.0 dBm -110.0 dBm
-114.0 dBm -115.0 dBm
-117.0 dBm -118.0 dBm
BTS Receiver Sensitivity