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git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5739 818b1a75-f10b-46b9-bf7c-635c3b92a50f

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This commit is contained in:
Raymond Knopp
2014-08-21 11:51:01 +00:00
parent b1e97ab181
commit d2bf4ddcd4
21 changed files with 168 additions and 239 deletions
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openair1/PHY/LTE_ESTIMATION/adjust_gain.c
+5 -2
View File
@@ -45,9 +45,11 @@ phy_adjust_gain (PHY_VARS_UE *phy_vars_ue, uint8_t eNB_id) {
exmimo_config_t *p_exmimo_config = openair0_exmimo_pci[card].exmimo_config_ptr;
uint16_t i;
#endif
int rssi;
//rx_power_fil_dB = dB_fixed(phy_vars_ue->PHY_measurements.rssi);
rx_power_fil_dB = phy_vars_ue->PHY_measurements.rx_power_avg_dB[eNB_id];
rssi = dB_fixed(phy_vars_ue->PHY_measurements.rssi);
if (rssi>0) rx_power_fil_dB = dB_fixed(phy_vars_ue->PHY_measurements.rssi);
else rx_power_fil_dB = phy_vars_ue->PHY_measurements.rx_power_avg_dB[eNB_id];
// Gain control with hysterisis
// Adjust gain in phy_vars_ue->rx_vars[0].rx_total_gain_dB
@@ -78,6 +80,7 @@ phy_adjust_gain (PHY_VARS_UE *phy_vars_ue, uint8_t eNB_id) {
phy_vars_ue->rx_total_gain_dB = MIN_RF_GAIN;
}
printf("Gain control: rx_total_gain_dB = %d (max %d,rxpf %d)\n",phy_vars_ue->rx_total_gain_dB,MAX_RF_GAIN,rx_power_fil_dB);
#ifdef EXMIMO
openair1/PHY/LTE_ESTIMATION/lte_ue_measurements.c
+28 -72
View File
@@ -49,7 +49,7 @@ __m128i zeroPMI;
#define k1 ((long long int) 1000)
#define k2 ((long long int) (1024-k1))
//#define DEBUG_MEAS
#define DEBUG_MEAS
#ifdef USER_MODE
void print_shorts(char *s,__m128i *x) {
@@ -84,17 +84,21 @@ int16_t get_PL(uint8_t Mod_id,uint8_t CC_id,uint8_t eNB_index) {
PHY_VARS_UE *phy_vars_ue = PHY_vars_UE_g[Mod_id][CC_id];
int RSoffset;
LOG_D(PHY,"get_PL : Frame %d : rssi %d, eNB power %d\n", phy_vars_ue->frame,
dB_fixed(phy_vars_ue->PHY_measurements.rssi)-phy_vars_ue->rx_total_gain_dB,
phy_vars_ue->lte_frame_parms.pdsch_config_common.referenceSignalPower);
if (phy_vars_ue->lte_frame_parms.mode1_flag == 1)
RSoffset = 6;
else
RSoffset = 3;
return((int16_t)(phy_vars_ue->rx_total_gain_dB-dB_fixed(phy_vars_ue->PHY_measurements.rssi/RSoffset) +
phy_vars_ue->lte_frame_parms.pdsch_config_common.referenceSignalPower));
LOG_D(PHY,"get_PL : Frame %d : rssi %f dBm, eNB power %d dBm/RE\n", phy_vars_ue->frame,
(1.0*dB_fixed_times10(phy_vars_ue->PHY_measurements.rssi/RSoffset)-(10.0*phy_vars_ue->rx_total_gain_dB))/10.0,
phy_vars_ue->lte_frame_parms.pdsch_config_common.referenceSignalPower);
return((int16_t)(((10*phy_vars_ue->rx_total_gain_dB) -
dB_fixed_times10(phy_vars_ue->PHY_measurements.rssi)+
dB_fixed_times10(RSoffset*12*PHY_vars_UE_g[Mod_id][CC_id]->lte_frame_parms.N_RB_DL) +
(phy_vars_ue->lte_frame_parms.pdsch_config_common.referenceSignalPower*10))/10));
}
@@ -170,25 +174,8 @@ void ue_rrc_measurements(PHY_VARS_UE *phy_vars_ue,
uint16_t Nid_cell = phy_vars_ue->lte_frame_parms.Nid_cell;
uint8_t eNB_offset,nu,l,nushift,k;
uint16_t off;
int16_t rx_power_correction;
// if the fft size an odd power of 2, the output of the fft is shifted one too much, so we need to compensate for that
if (abstraction_flag==0) {
rx_power_correction = 1;
}
else {
#ifndef NEW_FFT
if ((phy_vars_ue->lte_frame_parms.ofdm_symbol_size == 128) ||
(phy_vars_ue->lte_frame_parms.ofdm_symbol_size == 512))
rx_power_correction = 2;
else
rx_power_correction = 1;
#else
rx_power_correction=1;
#endif
}
for (eNB_offset = 0;eNB_offset<1+phy_vars_ue->PHY_measurements.n_adj_cells;eNB_offset++) {
if (eNB_offset==0)
@@ -220,39 +207,22 @@ void ue_rrc_measurements(PHY_VARS_UE *phy_vars_ue,
LOG_D(PHY,"[UE %d] Frame %d slot %d Doing ue_rrc_measurements rsrp/rssi (Nid_cell %d, nushift %d, eNB_offset %d, k %d)\n",phy_vars_ue->Mod_id,phy_vars_ue->frame,slot,Nid_cell,nushift,eNB_offset,k);
#endif
for (aarx=0;aarx<phy_vars_ue->lte_frame_parms.nb_antennas_rx;aarx++) {
#ifndef NEW_FFT
rxF = (int16_t *)&phy_vars_ue->lte_ue_common_vars.rxdataF[aarx][(l*phy_vars_ue->lte_frame_parms.ofdm_symbol_size)<<1];
off = (phy_vars_ue->lte_frame_parms.first_carrier_offset+k)<<2;
#else
rxF = (int16_t *)&phy_vars_ue->lte_ue_common_vars.rxdataF[aarx][(l*phy_vars_ue->lte_frame_parms.ofdm_symbol_size)];
off = (phy_vars_ue->lte_frame_parms.first_carrier_offset+k)<<1;
#endif
if (l==(4-phy_vars_ue->lte_frame_parms.Ncp)) {
if (l==(4-phy_vars_ue->lte_frame_parms.Ncp)) {
for (rb=0;rb<phy_vars_ue->lte_frame_parms.N_RB_DL;rb++) {
// 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]));
#ifndef NEW_FFT
off+=24;
if (off>=(phy_vars_ue->lte_frame_parms.ofdm_symbol_size<<2))
off = (1+k)<<2;
#else
off+=12;
if (off>=(phy_vars_ue->lte_frame_parms.ofdm_symbol_size<<1))
off = (1+k)<<1;
#endif
phy_vars_ue->PHY_measurements.rsrp[eNB_offset] += ((rxF[off]*rxF[off])+(rxF[off+1]*rxF[off+1]));
#ifndef NEW_FFT
off+=24;
if (off>=(phy_vars_ue->lte_frame_parms.ofdm_symbol_size<<2))
off = (1+k)<<2;
#else
off+=12;
if (off>=(phy_vars_ue->lte_frame_parms.ofdm_symbol_size<<1))
off = (1+k)<<1;
#endif
}
/*
@@ -273,9 +243,9 @@ void ue_rrc_measurements(PHY_VARS_UE *phy_vars_ue,
// 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]*=rx_power_correction;
// phy_vars_ue->PHY_measurements.rsrp[eNB_offset] = phy_vars_ue->PHY_measurements.rx_spatial_power[eNB_offset][0][0]/(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;
@@ -295,12 +265,13 @@ void ue_rrc_measurements(PHY_VARS_UE *phy_vars_ue,
phy_vars_ue->PHY_measurements.rsrq[eNB_offset] = 3;
}
if (((phy_vars_ue->frame %10) == 0) && (slot == 1)) {
if (((phy_vars_ue->frame %10) == 0) && (slot == 0)) {
#ifdef DEBUG_MEAS
if (eNB_offset == 0)
LOG_D(PHY,"[UE %d] Frame %d, slot %d RRC Measurements => rssi %3.1f dBm (digital: %3.1f dB)\n",phy_vars_ue->Mod_id,
LOG_D(PHY,"[UE %d] Frame %d, slot %d RRC Measurements => rssi %3.1f dBm (digital: %3.1f dB, gain %d)\n",phy_vars_ue->Mod_id,
phy_vars_ue->frame,slot,10*log10(phy_vars_ue->PHY_measurements.rssi)-phy_vars_ue->rx_total_gain_dB,
10*log10(phy_vars_ue->PHY_measurements.rssi));
10*log10(phy_vars_ue->PHY_measurements.rssi),
phy_vars_ue->rx_total_gain_dB);
LOG_D(PHY,"[UE %d] Frame %d, slot %d RRC Measurements (idx %d, Cell id %d) => rsrp: %3.1f (%3.1f) dBm, rsrq: %3.1f dB\n",
phy_vars_ue->Mod_id,
phy_vars_ue->frame,slot,eNB_offset,
@@ -324,7 +295,7 @@ void lte_ue_measurements(PHY_VARS_UE *phy_vars_ue,
unsigned char abstraction_flag){
int aarx,aatx,eNB_id=0,rx_power_correction=1,gain_offset=0;
int aarx,aatx,eNB_id=0,gain_offset=0;
//int rx_power[NUMBER_OF_CONNECTED_eNB_MAX];
int i;
unsigned int limit,subband;
@@ -334,12 +305,7 @@ void lte_ue_measurements(PHY_VARS_UE *phy_vars_ue,
phy_vars_ue->PHY_measurements.nb_antennas_rx = frame_parms->nb_antennas_rx;
#ifdef CBMIMO1
if (openair_daq_vars.rx_rf_mode == 0)
gain_offset = 25;
else
gain_offset = 0;
#endif
#ifndef __SSE3__
zeroPMI = _mm_xor_si128(zeroPMI,zeroPMI);
@@ -361,21 +327,6 @@ void lte_ue_measurements(PHY_VARS_UE *phy_vars_ue,
phy_vars_ue->PHY_measurements.n0_power_avg_dB = 0;
}
// if the fft size an odd power of 2, the output of the fft is shifted one too much, so we need to compensate for that
if (abstraction_flag==0) {
rx_power_correction = 1;
}
else {
#ifndef NEW_FFT
if ((frame_parms->ofdm_symbol_size == 128) || (frame_parms->ofdm_symbol_size == 512))
rx_power_correction = 2;
else
rx_power_correction = 1;
#else
rx_power_correction=1;
#endif
}
// noise measurements
// for abstraction we do noise measurements based on the precalculated phy_vars_ue->N0
// otherwise if there is a symbol where we can take noise measurements on, we measure there
@@ -417,7 +368,7 @@ void lte_ue_measurements(PHY_VARS_UE *phy_vars_ue,
for (aatx=0; aatx<frame_parms->nb_antennas_tx_eNB; aatx++) {
phy_vars_ue->PHY_measurements.rx_spatial_power[eNB_id][aatx][aarx] =
(signal_energy_nodc(&phy_vars_ue->lte_ue_common_vars.dl_ch_estimates[eNB_id][(aatx<<1) + aarx][0],
(frame_parms->N_RB_DL*12))*rx_power_correction);
(frame_parms->N_RB_DL*12)));
//- phy_vars_ue->PHY_measurements.n0_power[aarx];
if (phy_vars_ue->PHY_measurements.rx_spatial_power[eNB_id][aatx][aarx]<0)
@@ -465,6 +416,11 @@ void lte_ue_measurements(PHY_VARS_UE *phy_vars_ue,
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;
#ifdef DEBUG_MEAS
printf("[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],
phy_vars_ue->PHY_measurements.rx_power_avg_dB[eNB_id]);
#endif
}
phy_vars_ue->PHY_measurements.n0_power_avg_dB = dB_fixed( phy_vars_ue->PHY_measurements.n0_power_avg);
@@ -488,7 +444,7 @@ void lte_ue_measurements(PHY_VARS_UE *phy_vars_ue,
msg("subband %d (%d) : %d,%d\n",subband,i,((short *)dl_ch0)[2*i],((short *)dl_ch0)[1+(2*i)]);
*/
phy_vars_ue->PHY_measurements.subband_cqi[eNB_id][aarx][subband] =
(signal_energy_nodc(dl_ch0,48) + signal_energy_nodc(dl_ch1,48))*rx_power_correction;
(signal_energy_nodc(dl_ch0,48) + signal_energy_nodc(dl_ch1,48));
if ( phy_vars_ue->PHY_measurements.subband_cqi[eNB_id][aarx][subband] < 0)
phy_vars_ue->PHY_measurements.subband_cqi[eNB_id][aarx][subband]=0;
/*
@@ -503,7 +459,7 @@ void lte_ue_measurements(PHY_VARS_UE *phy_vars_ue,
else {
// for (i=0;i<12;i++)
// printf("subband %d (%d) : %d,%d\n",subband,i,((short *)dl_ch0)[2*i],((short *)dl_ch0)[1+(2*i)]);
phy_vars_ue->PHY_measurements.subband_cqi[eNB_id][aarx][subband] = (signal_energy_nodc(dl_ch0,12) + signal_energy_nodc(dl_ch1,12))*rx_power_correction; // - phy_vars_ue->PHY_measurements.n0_power[aarx];
phy_vars_ue->PHY_measurements.subband_cqi[eNB_id][aarx][subband] = (signal_energy_nodc(dl_ch0,12) + signal_energy_nodc(dl_ch1,12)); // - phy_vars_ue->PHY_measurements.n0_power[aarx];
phy_vars_ue->PHY_measurements.subband_cqi_tot[eNB_id][subband] += phy_vars_ue->PHY_measurements.subband_cqi[eNB_id][aarx][subband];
phy_vars_ue->PHY_measurements.subband_cqi_dB[eNB_id][aarx][subband] = dB_fixed2(phy_vars_ue->PHY_measurements.subband_cqi[eNB_id][aarx][subband],
phy_vars_ue->PHY_measurements.n0_power[aarx]);
@@ -608,7 +564,7 @@ void lte_ue_measurements(PHY_VARS_UE *phy_vars_ue,
// for (i=0;i<48;i++)
// printf("subband %d (%d) : %d,%d\n",subband,i,((short *)dl_ch0)[2*i],((short *)dl_ch0)[1+(2*i)]);
phy_vars_ue->PHY_measurements.subband_cqi[eNB_id][aarx][subband] =
(signal_energy_nodc(dl_ch0,48) )*rx_power_correction - phy_vars_ue->PHY_measurements.n0_power[aarx];
(signal_energy_nodc(dl_ch0,48) ) - phy_vars_ue->PHY_measurements.n0_power[aarx];
phy_vars_ue->PHY_measurements.subband_cqi_tot[eNB_id][subband] += phy_vars_ue->PHY_measurements.subband_cqi[eNB_id][aarx][subband];
phy_vars_ue->PHY_measurements.subband_cqi_dB[eNB_id][aarx][subband] = dB_fixed2(phy_vars_ue->PHY_measurements.subband_cqi[eNB_id][aarx][subband],
@@ -617,7 +573,7 @@ void lte_ue_measurements(PHY_VARS_UE *phy_vars_ue,
else {
// for (i=0;i<12;i++)
// printf("subband %d (%d) : %d,%d\n",subband,i,((short *)dl_ch0)[2*i],((short *)dl_ch0)[1+(2*i)]);
phy_vars_ue->PHY_measurements.subband_cqi[eNB_id][aarx][subband] = (signal_energy_nodc(dl_ch0,12) )*rx_power_correction - phy_vars_ue->PHY_measurements.n0_power[aarx];
phy_vars_ue->PHY_measurements.subband_cqi[eNB_id][aarx][subband] = (signal_energy_nodc(dl_ch0,12) ) - phy_vars_ue->PHY_measurements.n0_power[aarx];
phy_vars_ue->PHY_measurements.subband_cqi_tot[eNB_id][subband] += phy_vars_ue->PHY_measurements.subband_cqi[eNB_id][aarx][subband];
phy_vars_ue->PHY_measurements.subband_cqi_dB[eNB_id][aarx][subband] = dB_fixed2(phy_vars_ue->PHY_measurements.subband_cqi[eNB_id][aarx][subband],
phy_vars_ue->PHY_measurements.n0_power[aarx]);