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Addition of UE TX in USRP (still under test), calibration of UE RX for 5/10/20 MHz with USRP, new noise and signal power estimation for UE- RK

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git-svn-id: http://svn.eurecom.fr/openair4G/trunk@6609 818b1a75-f10b-46b9-bf7c-635c3b92a50f
This commit is contained in:
Raymond Knopp
2015-02-24 21:27:37 +00:00
parent 7f6cd81e3a
commit cad490a2d5
8 changed files with 254 additions and 93 deletions
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openair1/PHY/LTE_ESTIMATION/lte_ue_measurements.c
+63 -6
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@@ -159,7 +159,7 @@ void ue_rrc_measurements(PHY_VARS_UE *phy_vars_ue,
uint8_t abstraction_flag) {
int aarx,rb;
int16_t *rxF;
int16_t *rxF,*rxF_pss,*rxF_sss;
uint16_t Nid_cell = phy_vars_ue->lte_frame_parms.Nid_cell;
uint8_t eNB_offset,nu,l,nushift,k;
@@ -168,8 +168,53 @@ void ue_rrc_measurements(PHY_VARS_UE *phy_vars_ue,
for (eNB_offset = 0;eNB_offset<1+phy_vars_ue->PHY_measurements.n_adj_cells;eNB_offset++) {
if (eNB_offset==0)
if (eNB_offset==0) {
phy_vars_ue->PHY_measurements.rssi = 0;
phy_vars_ue->PHY_measurements.n0_power_tot = 0;
if ((phy_vars_ue->lte_frame_parms.frame_type == FDD) &&
((slot == 0) || (slot == 10))) { // FDD PSS/SSS, compute noise in DTX REs
if (phy_vars_ue->lte_frame_parms.Ncp==NORMAL) {
for (aarx=0;aarx<phy_vars_ue->lte_frame_parms.nb_antennas_rx;aarx++) {
rxF_sss = (int16_t *)&phy_vars_ue->lte_ue_common_vars.rxdataF[aarx][(5*phy_vars_ue->lte_frame_parms.ofdm_symbol_size)];
rxF_pss = (int16_t *)&phy_vars_ue->lte_ue_common_vars.rxdataF[aarx][(6*phy_vars_ue->lte_frame_parms.ofdm_symbol_size)];
//-ve spectrum from SSS
phy_vars_ue->PHY_measurements.n0_power[aarx] = ((rxF_pss[-72]*rxF_pss[-72])+(rxF_pss[-71]*rxF_pss[-71]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_pss[-70]*rxF_pss[-70])+(rxF_pss[-69]*rxF_pss[-69]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_pss[-68]*rxF_pss[-68])+(rxF_pss[-67]*rxF_pss[-67]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_pss[-66]*rxF_pss[-66])+(rxF_pss[-65]*rxF_pss[-65]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_pss[-64]*rxF_pss[-64])+(rxF_pss[-63]*rxF_pss[-63]));
//+ve spectrum from SSS
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_sss[2+72]*rxF_sss[2+72])+(rxF_sss[2+71]*rxF_sss[2+71]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_sss[2+70]*rxF_sss[2+70])+(rxF_sss[2+69]*rxF_sss[2+69]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_sss[2+68]*rxF_sss[2+68])+(rxF_sss[2+67]*rxF_sss[2+67]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_sss[2+66]*rxF_sss[2+66])+(rxF_sss[2+65]*rxF_sss[2+65]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_sss[2+64]*rxF_sss[2+64])+(rxF_sss[2+63]*rxF_sss[2+63]));
//+ve spectrum from PSS
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_pss[2+72]*rxF_pss[2+72])+(rxF_pss[2+71]*rxF_pss[2+71]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_pss[2+70]*rxF_pss[2+70])+(rxF_pss[2+69]*rxF_pss[2+69]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_pss[2+68]*rxF_pss[2+68])+(rxF_pss[2+67]*rxF_pss[2+67]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_pss[2+66]*rxF_pss[2+66])+(rxF_pss[2+65]*rxF_pss[2+65]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_pss[2+64]*rxF_pss[2+64])+(rxF_pss[2+63]*rxF_pss[2+63]));
//-ve spectrum from PSS
rxF_pss = (int16_t *)&phy_vars_ue->lte_ue_common_vars.rxdataF[aarx][(7*phy_vars_ue->lte_frame_parms.ofdm_symbol_size)];
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_pss[-72]*rxF_pss[-72])+(rxF_pss[-71]*rxF_pss[-71]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_pss[-70]*rxF_pss[-70])+(rxF_pss[-69]*rxF_pss[-69]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_pss[-68]*rxF_pss[-68])+(rxF_pss[-67]*rxF_pss[-67]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_pss[-66]*rxF_pss[-66])+(rxF_pss[-65]*rxF_pss[-65]));
phy_vars_ue->PHY_measurements.n0_power[aarx] += ((rxF_pss[-64]*rxF_pss[-64])+(rxF_pss[-63]*rxF_pss[-63]));
phy_vars_ue->PHY_measurements.n0_power_dB[aarx] = (unsigned short) dB_fixed(phy_vars_ue->PHY_measurements.n0_power[aarx]/10);
phy_vars_ue->PHY_measurements.n0_power_tot += phy_vars_ue->PHY_measurements.n0_power[aarx];
}
phy_vars_ue->PHY_measurements.n0_power_tot_dB = (unsigned short) dB_fixed(phy_vars_ue->PHY_measurements.n0_power_tot/20);
phy_vars_ue->PHY_measurements.n0_power_tot_dBm = phy_vars_ue->PHY_measurements.n0_power_tot_dB - phy_vars_ue->rx_total_gain_dB;
}
}
}
#ifdef DEBUG_MEAS
LOG_D(PHY,"ue_rrc_measurements: eNB_offset %d => rssi %d\n",eNB_offset,phy_vars_ue->PHY_measurements.rssi);
@@ -206,13 +251,22 @@ void ue_rrc_measurements(PHY_VARS_UE *phy_vars_ue,
// printf("rb %d, off %d, off2 %d\n",rb,off,off2);
phy_vars_ue->PHY_measurements.rsrp[eNB_offset] += ((rxF[off]*rxF[off])+(rxF[off+1]*rxF[off+1]));
/* if ((phy_vars_ue->frame_rx&0x3ff) == 0)
printf("rb %d, off %d : %d\n",rb,off,((rxF[off]*rxF[off])+(rxF[off+1]*rxF[off+1])));
*/
off+=12;
if (off>=(phy_vars_ue->lte_frame_parms.ofdm_symbol_size<<1))
off = (1+k)<<1;
phy_vars_ue->PHY_measurements.rsrp[eNB_offset] += ((rxF[off]*rxF[off])+(rxF[off+1]*rxF[off+1]));
/*
if ((phy_vars_ue->frame_rx&0x3ff) == 0)
printf("rb %d, off %d : %d\n",rb,off,((rxF[off]*rxF[off])+(rxF[off+1]*rxF[off+1])));
*/
off+=12;
if (off>=(phy_vars_ue->lte_frame_parms.ofdm_symbol_size<<1))
off = (1+k)<<1;
}
/*
@@ -232,14 +286,16 @@ void ue_rrc_measurements(PHY_VARS_UE *phy_vars_ue,
// LOG_D(PHY,"eNB: %d, RSRP_tmp: %d \n",eNB_offset,phy_vars_ue->PHY_measurements.rsrp[eNB_offset]);
// 2 RE per PRB
phy_vars_ue->PHY_measurements.rsrp[eNB_offset]/=(24*phy_vars_ue->lte_frame_parms.N_RB_DL);
// phy_vars_ue->PHY_measurements.rsrp[eNB_offset]/=(24*phy_vars_ue->lte_frame_parms.N_RB_DL);
phy_vars_ue->PHY_measurements.rsrp[eNB_offset]/=(2*phy_vars_ue->lte_frame_parms.N_RB_DL);
if (eNB_offset == 0) {
// phy_vars_ue->PHY_measurements.rssi/=(24*phy_vars_ue->lte_frame_parms.N_RB_DL);
// phy_vars_ue->PHY_measurements.rssi*=rx_power_correction;
phy_vars_ue->PHY_measurements.rssi=phy_vars_ue->PHY_measurements.rsrp[0]*24/2;
// phy_vars_ue->PHY_measurements.rssi=phy_vars_ue->PHY_measurements.rsrp[0]*24/2;
phy_vars_ue->PHY_measurements.rssi=phy_vars_ue->PHY_measurements.rsrp[0]*(12*phy_vars_ue->lte_frame_parms.N_RB_DL);
}
if (phy_vars_ue->PHY_measurements.rssi>0)
phy_vars_ue->PHY_measurements.rsrq[eNB_offset] = 100*phy_vars_ue->PHY_measurements.rsrp[eNB_offset]*phy_vars_ue->lte_frame_parms.N_RB_DL/phy_vars_ue->PHY_measurements.rssi;
@@ -318,6 +374,7 @@ void lte_ue_measurements(PHY_VARS_UE *phy_vars_ue,
last_subband_size = 4*12;
break;
}
/* // DONE NOW in ue_rrc_measurements
if (abstraction_flag!=0) {
phy_vars_ue->PHY_measurements.n0_power_tot = 0;
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
@@ -347,7 +404,7 @@ void lte_ue_measurements(PHY_VARS_UE *phy_vars_ue,
else {
phy_vars_ue->PHY_measurements.n0_power_tot_dBm = phy_vars_ue->PHY_measurements.n0_power_tot_dB - phy_vars_ue->rx_total_gain_dB + gain_offset;
}
*/
// signal measurements
for (eNB_id=0;eNB_id<phy_vars_ue->n_connected_eNB;eNB_id++) {
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
@@ -401,7 +458,7 @@ void lte_ue_measurements(PHY_VARS_UE *phy_vars_ue,
phy_vars_ue->PHY_measurements.rx_power_avg_dB[eNB_id] = dB_fixed( phy_vars_ue->PHY_measurements.rx_power_avg[eNB_id]);
phy_vars_ue->PHY_measurements.wideband_cqi_tot[eNB_id] = dB_fixed2(phy_vars_ue->PHY_measurements.rx_power_tot[eNB_id],phy_vars_ue->PHY_measurements.n0_power_tot);
phy_vars_ue->PHY_measurements.wideband_cqi_avg[eNB_id] = dB_fixed2(phy_vars_ue->PHY_measurements.rx_power_avg[eNB_id],phy_vars_ue->PHY_measurements.n0_power_avg);
phy_vars_ue->PHY_measurements.rx_rssi_dBm[eNB_id] = phy_vars_ue->PHY_measurements.rx_power_avg_dB[eNB_id] - phy_vars_ue->rx_total_gain_dB + gain_offset;
phy_vars_ue->PHY_measurements.rx_rssi_dBm[eNB_id] = phy_vars_ue->PHY_measurements.rx_power_avg_dB[eNB_id] - phy_vars_ue->rx_total_gain_dB;
#ifdef DEBUG_MEAS
LOG_D(PHY,"[eNB %d] lte_ue_measurements: RSSI %d dBm, RSSI (digital) %d dB\n",
eNB_id,phy_vars_ue->PHY_measurements.rx_rssi_dBm[eNB_id],