Evaluate COST 231 WI for handover

Lecture Notes

 * [[Media:UNIK4700-l10-h13.pdf]]

Experiences

 * current implementation did not convert base station transmit power $$ P_{Tx} = 25 W $$ into dB, leading to $$ P_{Tx} = 44 dB_m $$

Signal to Noise ratio (SNR)
 * SNR, calculated from $$SNR = E_b/N_0 \cdot  f_b/B $$ resulted in -7dB, due to coding gain. Assumed
 * $$ E_b/N_0 = 5 dB $$
 * Signal $$ f_b = 12.2 kbit/s $$ for voice, and $$ f_b = 100 kbit/s $$ for data in GSM resp. GPRS
 * assumed that GSM needs SNR of 7 dB

UMTS receiver sensitivity
 * specs require $$ P_{sens} = -117 dB_m $$ for $$ BER = 10^{-3} $$