Handbook

ClearFill Star CDMA
1100187 Rev. 1.0
Page 47 of 152
The calculation result for the UL reception power levels is summarized in Table 9.
Cell PCS
Distance handheld
RRH
2.5 m 34 m 2.5 m 34 m
Reception level with
max power at
handheld
-18dBm -67dBm -29dBm -79dBm
Reception level with
min power at
handheld
-95dBm -144dBm -102dBm -152dBm
GSM-850 GSM-1900
Distance handheld
RRH
2.5 m 6.5 m 34 m
2.5
m
34 m
Reception level with
max power at handheld
-12
dBm
-20 dBm
-61
dBm
-22
dBm
-72
dBm
Reception level with
min power at handheld
-40
dBm
-48 dBm
-89
dBm
-52
dBm
-102
dBm
Table 9 Reception power levels for ClearFill®Star-CDMA
6.5m correspond to a distance at which a GSM mobile produce an input power level of –
20dBm to the system (when transmitting at maximum power level). For this calculated
distance no fading effects and wall losses have been considered.
In CDMA systems all mobiles are controlled via BTS to generate the same power level at the
BTS in UL. Assuming a mobile at maximum coverage radius, the maximum expected input
power level ClearFill®Star system is –67 dBm for CELL and –79 dBm for PCS under listed
conditions of Table 6 Propagation Parameters
and Table 9.
Full data rates in UL are requested at Rx levels of –67 dBm for CELL and –79 dBm for PCS.
3.4.2.3 Noise
The absolute minimum UL input power level is defined by the sensitivity of the system.
Assuming a channel bandwidth of 1.25MHz, a noise figure of 12 dB and a min. required
signal to noise ratio of 13.5 dB, the sensitivity of the system is calculated to be –87.,5 dBm.
This represents the minimum input power level that can be transmitted by ClearFill®Star
system (supporting SNR of 13.5dB) and that can be processed by a BTS.