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Applying channel scaling for TM4, playing with log2approx in demodulation

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lukashov
2016-01-05 00:25:23 +01:00
parent ef3991d461
commit fa64a12850
1 changed files with 3 additions and 3 deletions
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openair1/PHY/LTE_TRANSPORT/dlsch_demodulation.c
+3 -3
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@@ -420,11 +420,11 @@ int rx_pdsch(PHY_VARS_UE *phy_vars_ue,
// scaling interfering channel (following for TM56) // scaling interfering channel (following for TM56)
/*dlsch_scale_channel(lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext, dlsch_scale_channel(lte_ue_pdsch_vars[eNB_id]->dl_ch_estimates_ext,
frame_parms, frame_parms,
dlsch_ue, dlsch_ue,
symbol, symbol,
nb_rb);*/ nb_rb);
if (first_symbol_flag==1) { if (first_symbol_flag==1) {
@@ -451,7 +451,7 @@ int rx_pdsch(PHY_VARS_UE *phy_vars_ue,
} }
else else
// to avoid tails in SNR/BLER curves // to avoid tails in SNR/BLER curves
avg[0] = log2_approx(avg[0]) - interf_unaw_shift; avg[0] = (log2_approx(avg[0])/2) - 13 + interf_unaw_shift;
lte_ue_pdsch_vars[eNB_id]->log2_maxh0 = cmax(avg[0],0); lte_ue_pdsch_vars[eNB_id]->log2_maxh0 = cmax(avg[0],0);
lte_ue_pdsch_vars[eNB_id]->log2_maxh1 = cmax(avg[0],0); lte_ue_pdsch_vars[eNB_id]->log2_maxh1 = cmax(avg[0],0);
//printf("TM4 I-UA shift = %d\n",interf_unaw_shift); //printf("TM4 I-UA shift = %d\n",interf_unaw_shift);