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Commit e097bec7 authored by hardy's avatar hardy
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Merge remote-tracking branch 'origin/nr_dl_dmrs_type2' into integration_2020_wk48

parents b57ef17b 0e298d87
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Showing with 558 additions and 157 deletions
openair1/PHY/INIT/nr_parms.c
View file @ e097bec7
......@@ -290,9 +290,9 @@ int nr_init_frame_parms(nfapi_nr_config_request_scf_t* cfg,
fp->slots_per_frame = 10* fp->slots_per_subframe;
fp->nb_antenna_ports_gNB = 1; // default value until overwritten by RRCConnectionReconfiguration
fp->nb_antennas_rx = 1; // default value until overwritten by RRCConnectionReconfiguration
fp->nb_antennas_tx = 1; // default value until overwritten by RRCConnectionReconfiguration
fp->nb_antenna_ports_gNB = cfg->carrier_config.num_tx_ant.value;// It corresponds to pdsch_AntennaPorts
fp->nb_antennas_rx = cfg->carrier_config.num_rx_ant.value; // It denotes the number of rx antennas at gNB
fp->nb_antennas_tx = 1; // It corresponds to the number of UE Tx antennas
fp->symbols_per_slot = ((Ncp == NORMAL)? 14 : 12); // to redefine for different slot formats
fp->samples_per_subframe_wCP = fp->ofdm_symbol_size * fp->symbols_per_slot * fp->slots_per_subframe;
......
openair1/PHY/NR_REFSIG/dmrs_nr.c
View file @ e097bec7
......@@ -37,6 +37,7 @@
uint8_t allowed_xlsch_re_in_dmrs_symbol(uint16_t k,
uint16_t start_sc,
uint16_t ofdm_symbol_size,
uint8_t numDmrsCdmGrpsNoData,
uint8_t dmrs_type) {
uint8_t delta;
......@@ -44,7 +45,7 @@ uint8_t allowed_xlsch_re_in_dmrs_symbol(uint16_t k,
if (k>start_sc)
diff = k-start_sc;
else
diff = start_sc-k;
diff = (ofdm_symbol_size-start_sc)+k;
for (int i = 0; i<numDmrsCdmGrpsNoData; i++){
if (dmrs_type==NFAPI_NR_DMRS_TYPE1) {
delta = i;
......@@ -53,7 +54,7 @@ uint8_t allowed_xlsch_re_in_dmrs_symbol(uint16_t k,
}
else {
delta = i<<1;
if ( (((diff)%6) == delta) || (((k-start_sc)%6) == (delta+1)) )
if (((diff%6) == delta) || ((diff%6) == (delta+1)))
return (0);
}
}
......
openair1/PHY/NR_REFSIG/dmrs_nr.h
View file @ e097bec7
......@@ -58,6 +58,7 @@ uint16_t get_dmrs_freq_idx_ul(uint16_t n, uint8_t k_prime, uint8_t delta, uint8_
uint8_t allowed_xlsch_re_in_dmrs_symbol(uint16_t k,
uint16_t start_sc,
uint16_t ofdm_symbol_size,
uint8_t numDmrsCdmGrpsNoData,
uint8_t dmrs_type);
......
openair1/PHY/NR_REFSIG/nr_dmrs_rx.c
View file @ e097bec7
......@@ -121,18 +121,18 @@ int nr_pdsch_dmrs_rx(PHY_VARS_NR_UE *ue,
array_of_w *wf;
array_of_w *wt;
config_type = 0; //to be updated by higher layer
config_type = ue->dmrs_DownlinkConfig.pdsch_dmrs_type;
wf = (config_type==0) ? wf1 : wf2;
wt = (config_type==0) ? wt1 : wt2;
wf = (config_type==pdsch_dmrs_type1) ? wf1 : wf2;
wt = (config_type==pdsch_dmrs_type1) ? wt1 : wt2;
if (config_type > 1)
LOG_E(PHY,"Bad PDSCH DMRS config type %d\n", config_type);
if ((p>=1000) && (p<((config_type==0) ? 1008 : 1012))) {
if ((p>=1000) && (p<((config_type==pdsch_dmrs_type1) ? 1008 : 1012))) {
if (ue->frame_parms.Ncp == NORMAL) {
for (int i=0; i<nb_pdsch_rb*((config_type==0) ? 6:4); i++) {
for (int i=0; i<nb_pdsch_rb*((config_type==pdsch_dmrs_type1) ? 6:4); i++) {
w = (wf[p-1000][i&1])*(wt[p-1000][lp]);
mod_table = (w==1) ? nr_rx_mod_table : nr_rx_nmod_table;
......
openair1/PHY/NR_TRANSPORT/nr_dlsch.c
View file @ e097bec7
......@@ -140,7 +140,7 @@ uint8_t nr_generate_pdsch(PHY_VARS_gNB *gNB,
uint32_t scrambled_output[NR_MAX_NB_CODEWORDS][NR_MAX_PDSCH_ENCODED_LENGTH>>5];
int16_t **mod_symbs = (int16_t**)dlsch->mod_symbs;
int16_t **tx_layers = (int16_t**)dlsch->txdataF;
int8_t Wf[2], Wt[2], l0, l_prime[2], delta;
int8_t Wf[2], Wt[2], l0, l_prime, l_overline, delta;
uint8_t dmrs_Type = rel15->dmrsConfigType;
int nb_re_dmrs;
uint16_t n_dmrs;
......@@ -153,10 +153,10 @@ uint8_t nr_generate_pdsch(PHY_VARS_gNB *gNB,
n_dmrs = ((rel15->rbSize+rel15->rbStart)*4)<<1;
}
uint16_t nb_re;
nb_re = ((12*rel15->NrOfSymbols)-nb_re_dmrs-xOverhead)*rel15->rbSize*rel15->NrOfCodewords;
nb_re = ((12*rel15->NrOfSymbols)-nb_re_dmrs-xOverhead)*rel15->rbSize*rel15->nrOfLayers;
uint8_t Qm = rel15->qamModOrder[0];
uint32_t encoded_length = nb_re*Qm;
int16_t mod_dmrs[n_dmrs<<1] __attribute__ ((aligned(16)));
int16_t mod_dmrs[14][n_dmrs] __attribute__ ((aligned(16)));
/// CRC, coding, interleaving and rate matching
......@@ -250,12 +250,13 @@ uint8_t nr_generate_pdsch(PHY_VARS_gNB *gNB,
//to be moved to init phase potentially, for now tx_layers 1-8 are mapped on antenna ports 1000-1007
/// DMRS QPSK modulation
l0 = get_l0(rel15->dlDmrsSymbPos);
nr_modulation(pdsch_dmrs[l0][0], n_dmrs, DMRS_MOD_ORDER, mod_dmrs); // currently only codeword 0 is modulated. Qm = 2 as DMRS is QPSK modulated
for (int l=rel15->StartSymbolIndex; l<rel15->StartSymbolIndex+rel15->NrOfSymbols; l++) {
if (rel15->dlDmrsSymbPos & (1 << l))
nr_modulation(pdsch_dmrs[l][0], n_dmrs, DMRS_MOD_ORDER, mod_dmrs[l]); // currently only codeword 0 is modulated. Qm = 2 as DMRS is QPSK modulated
}
#ifdef DEBUG_DLSCH
l0 = get_l0(rel15->dlDmrsSymbPos);
printf("DMRS modulation (single symbol %d, %d symbols, type %d):\n", l0, n_dmrs>>1, dmrs_Type);
for (int i=0; i<n_dmrs>>4; i++) {
for (int j=0; j<8; j++) {
......@@ -283,27 +284,41 @@ uint8_t nr_generate_pdsch(PHY_VARS_gNB *gNB,
get_Wt(Wt, ap, dmrs_Type);
get_Wf(Wf, ap, dmrs_Type);
delta = get_delta(ap, dmrs_Type);
l_prime[0] = 0; // single symbol ap 0
uint8_t dmrs_symbol = l0+l_prime[0];
l_prime = 0; // single symbol ap 0
l0 = get_l0(rel15->dlDmrsSymbPos);
l_overline = l0;
#ifdef DEBUG_DLSCH_MAPPING
uint8_t dmrs_symbol = l0+l_prime;
printf("DMRS Type %d params for ap %d: Wt %d %d \t Wf %d %d \t delta %d \t l_prime %d \t l0 %d\tDMRS symbol %d\n",
1+dmrs_Type,ap, Wt[0], Wt[1], Wf[0], Wf[1], delta, l_prime[0], l0, dmrs_symbol);
1+dmrs_Type,ap, Wt[0], Wt[1], Wf[0], Wf[1], delta, l_prime, l0, dmrs_symbol);
#endif
uint8_t k_prime=0;
uint16_t m=0, n=0, dmrs_idx=0, k=0;
int txdataF_offset = (slot%2)*frame_parms->samples_per_slot_wCP;
for (int l=rel15->StartSymbolIndex; l<rel15->StartSymbolIndex+rel15->NrOfSymbols; l++) {
k = start_sc;
n = 0;
k_prime = 0;
if (dmrs_Type == NFAPI_NR_DMRS_TYPE1) // another if condition to be included to check pdsch config type (reference of k)
dmrs_idx = rel15->rbStart*6;
else
dmrs_idx = rel15->rbStart*4;
for (int l=rel15->StartSymbolIndex; l<rel15->StartSymbolIndex+rel15->NrOfSymbols; l++) {
k = start_sc;
for (int i=0; i<rel15->rbSize*NR_NB_SC_PER_RB; i++) {
if ((l == dmrs_symbol) && (k == ((start_sc+get_dmrs_freq_idx(n, k_prime, delta, dmrs_Type))%(frame_parms->ofdm_symbol_size)))) {
((int16_t*)txdataF[ap])[((l*frame_parms->ofdm_symbol_size + k)<<1) + (2*txdataF_offset)] = (Wt[l_prime[0]]*Wf[k_prime]*amp*mod_dmrs[dmrs_idx<<1]) >> 15;
((int16_t*)txdataF[ap])[((l*frame_parms->ofdm_symbol_size + k)<<1) + 1 + (2*txdataF_offset)] = (Wt[l_prime[0]]*Wf[k_prime]*amp*mod_dmrs[(dmrs_idx<<1) + 1]) >> 15;
if ((rel15->dlDmrsSymbPos & (1 << l)) && (k == ((start_sc+get_dmrs_freq_idx(n, k_prime, delta, dmrs_Type))%(frame_parms->ofdm_symbol_size)))) {
if (l==(l_overline+1)) //take into account the double DMRS symbols
l_prime = 1;
else if (l>(l_overline+1)) {//new DMRS pair
l_overline = l;
l_prime = 0;
}
((int16_t*)txdataF[ap])[((l*frame_parms->ofdm_symbol_size + k)<<1) + (2*txdataF_offset)] = (Wt[l_prime]*Wf[k_prime]*amp*mod_dmrs[l][dmrs_idx<<1]) >> 15;
((int16_t*)txdataF[ap])[((l*frame_parms->ofdm_symbol_size + k)<<1) + 1 + (2*txdataF_offset)] = (Wt[l_prime]*Wf[k_prime]*amp*mod_dmrs[l][(dmrs_idx<<1) + 1]) >> 15;
#ifdef DEBUG_DLSCH_MAPPING
printf("dmrs_idx %d\t l %d \t k %d \t k_prime %d \t n %d \t txdataF: %d %d\n",
dmrs_idx, l, k, k_prime, n, ((int16_t*)txdataF[ap])[((l*frame_parms->ofdm_symbol_size + k)<<1) + (2*txdataF_offset)],
......@@ -313,10 +328,10 @@ uint8_t nr_generate_pdsch(PHY_VARS_gNB *gNB,
k_prime++;
k_prime&=1;
n+=(k_prime)?0:1;
}
else {
if( (l != dmrs_symbol) || allowed_xlsch_re_in_dmrs_symbol(k,start_sc,rel15->numDmrsCdmGrpsNoData,dmrs_Type)) {
} else {
if( (!(rel15->dlDmrsSymbPos & (1 << l))) || allowed_xlsch_re_in_dmrs_symbol(k,start_sc,frame_parms->ofdm_symbol_size,rel15->numDmrsCdmGrpsNoData,dmrs_Type)) {
((int16_t*)txdataF[ap])[((l*frame_parms->ofdm_symbol_size + k)<<1) + (2*txdataF_offset)] = (amp * tx_layers[ap][m<<1]) >> 15;
((int16_t*)txdataF[ap])[((l*frame_parms->ofdm_symbol_size + k)<<1) + 1 + (2*txdataF_offset)] = (amp * tx_layers[ap][(m<<1) + 1]) >> 15;
#ifdef DEBUG_DLSCH_MAPPING
......@@ -332,6 +347,8 @@ uint8_t nr_generate_pdsch(PHY_VARS_gNB *gNB,
} //RE loop
} // symbol loop
}// layer loop
dlsch->slot_tx[slot]=0;
}// dlsch loop
return 0;
......
openair1/PHY/NR_TRANSPORT/nr_sch_dmrs.c
View file @ e097bec7
......@@ -67,12 +67,12 @@ void get_antenna_ports(uint8_t *ap, uint8_t n_symbs, uint8_t config) {
void get_Wt(int8_t *Wt, uint8_t ap, uint8_t config) {
for (int i=0; i<2; i++)
*(Wt+i)=(config==NFAPI_NR_DMRS_TYPE1)?(pdsch_dmrs_1[ap][3+i]):(pdsch_dmrs_2[ap][3+i]);
*(Wt+i)=(config==NFAPI_NR_DMRS_TYPE1)?(pdsch_dmrs_1[ap][5+i]):(pdsch_dmrs_2[ap][5+i]);
}
void get_Wf(int8_t *Wf, uint8_t ap, uint8_t config) {
for (int i=0; i<2; i++)
*(Wf+i)=(config==NFAPI_NR_DMRS_TYPE1)?(pdsch_dmrs_1[ap][5+i]):(pdsch_dmrs_2[ap][5+i]);
*(Wf+i)=(config==NFAPI_NR_DMRS_TYPE1)?(pdsch_dmrs_1[ap][3+i]):(pdsch_dmrs_2[ap][3+i]);
}
uint8_t get_delta(uint8_t ap, uint8_t config) {
......
openair1/PHY/NR_UE_ESTIMATION/filt16a_32.c
View file @ e097bec7
......@@ -185,3 +185,57 @@ short filt8_rr1[8] = {
short filt8_rr2[8] = {
-4096,-8192,-12288,-16384,0,0,0,0};
short filt8_l2[8] = {
0,0,13107,9830,6554,3277,0,0};
short filt8_r2[8] = {
0,0,3277,6554,9830,13107,0,0};
short filt8_m2[8] = {
0,0,0,0,13107,9830,6554,3277};
short filt8_mm2[8]= {
0,0,0,0,3277,6554,9830,13107};
short filt8_rl2[8] = {
19661,22938,26214,29491,0,0,0,0};
short filt8_rm2[8] = {
-3277,-6554,-9830,-13107,0,0,0,0};//-3277,-6554,-9830,-13107
short filt8_l3[8] = {
22938,19661,0,0,13107,9830,6554,3277};
short filt8_r3[8] = {
-7537,-4260,0,0,3277,6554,9830,13107};//-6554,-3277
short filt8_rl3[8] = {
0,0,19661,22938,0,0,0,0};
short filt8_rr3[8] = {
0,0,-4260,-7537,0,0,0,0};//-3277,-6554
short filt8_dcrl1[8] = {
14895,13405,11916,10426,8937,7447,5958,4468};
short filt8_dcrh1[8] = {
2979,1489,0,0,0,0,0,0};
short filt8_dcll1[8] = {
13405,14895,0,0,0,0,0,0};
short filt8_dclh1[8] = {
1489,2979,4468,5958,7447,8937,10426,11916};
short filt8_dcrl2[8] = {
0,0,0,0,14895,13405,11916,10426};
short filt8_dcrh2[8] = {
8937,7447,5958,4468,2979,1489,0,0,};
short filt8_dcll2[8] = {
7447,8937,10426,11916,13405,14895,0,0};
short filt8_dclh2[8] = {
0,0,0,0,1489,2979,4468,5958};
openair1/PHY/NR_UE_ESTIMATION/filt16a_32.h
View file @ e097bec7
......@@ -133,4 +133,40 @@ extern short filt8_rr1[8];
extern short filt8_rr2[8];
extern short filt8_rm2[8];
extern short filt8_rl2[8];
extern short filt8_l2[8];
extern short filt8_r2[8];
extern short filt8_m2[8];
extern short filt8_mm2[8];
extern short filt8_l3[8];
extern short filt8_r3[8];
extern short filt8_rr3[8];
extern short filt8_rl3[8];
extern short filt8_dcrl1[8];
extern short filt8_dcrh1[8];
extern short filt8_dcll1[8];
extern short filt8_dclh1[8];
extern short filt8_dcrl2[8];
extern short filt8_dcrh2[8];
extern short filt8_dcll2[8];
extern short filt8_dclh2[8];
#endif
\ No newline at end of file
openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
View file @ e097bec7
......@@ -24,6 +24,7 @@
#include "SCHED_NR_UE/defs.h"
#include "nr_estimation.h"
#include "PHY/NR_REFSIG/refsig_defs_ue.h"
#include "PHY/NR_TRANSPORT/nr_sch_dmrs.h"
#include "filt16a_32.h"
//#define DEBUG_PDSCH
......@@ -652,8 +653,8 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
unsigned char aarx;
unsigned short k;
unsigned int pilot_cnt;
int16_t ch[2],*pil,*rxF,*dl_ch;
int16_t *fl,*fm,*fr,*fml,*fmr,*fmm,*fdcl,*fdcr,*fdclh,*fdcrh;
int16_t ch_l[2],ch_r[2],ch[2],*pil,*rxF,*dl_ch;
int16_t *fl,*fm,*fr,*fml,*fmr,*fmm,*fdcl,*fdcr,*fdclh,*fdcrh, *frl, *frr;
int ch_offset,symbol_offset;
//uint16_t Nid_cell = (eNB_offset == 0) ? ue->frame_parms.Nid_cell : ue->measurements.adj_cell_id[eNB_offset-1];
......@@ -662,9 +663,6 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
int **dl_ch_estimates =ue->pdsch_vars[ue->current_thread_id[Ns]][eNB_offset]->dl_ch_estimates;
int **rxdataF=ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].rxdataF;
nushift = (p>>1)&1;
ue->frame_parms.nushift = nushift;
if (ue->high_speed_flag == 0) // use second channel estimate position for temporary storage
ch_offset = ue->frame_parms.ofdm_symbol_size ;
else
......@@ -680,21 +678,33 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
ue->frame_parms.Ncp,Ns,k, symbol);
#endif
switch (nushift) {
case 0:
fl = filt8_l0;
fm = filt8_m0;
fr = filt8_r0;
fmm = filt8_mm0;
fml = filt8_m0;
fmr = filt8_mr0;
fdcl = filt8_dcl0;
fdcr = filt8_dcr0;
fdclh = filt8_dcl0_h;
fdcrh = filt8_dcr0_h;
// generate pilot for gNB port number 1000+p
uint16_t rb_offset = (bwp_start_subcarrier - ue->frame_parms.first_carrier_offset) / 12;
uint8_t config_type = ue->dmrs_DownlinkConfig.pdsch_dmrs_type;
int8_t delta = get_delta(p, config_type);
nr_pdsch_dmrs_rx(ue,Ns,ue->nr_gold_pdsch[eNB_offset][Ns][0], &pilot[0],1000+p,0,nb_rb_pdsch+rb_offset);
if (config_type == pdsch_dmrs_type1){
nushift = (p>>1)&1;
ue->frame_parms.nushift = nushift;
switch (delta) {
case 0://port 0,1
fl = filt8_l0;//left interpolation Filter for DMRS config. 1
fm = filt8_m0;//left middle interpolation Filter
fr = filt8_r0;//right interpolation Filter
fmm = filt8_mm0;;//middle middle interpolation Filter
fml = filt8_m0;//left middle interpolation Filter
fmr = filt8_mr0;//middle right interpolation Filter
fdcl = filt8_dcl0;//left DC interpolation Filter (even RB)
fdcr = filt8_dcr0;//right DC interpolation Filter (even RB)
fdclh = filt8_dcl0_h;//left DC interpolation Filter (odd RB)
fdcrh = filt8_dcr0_h;//right DC interpolation Filter (odd RB)
frl = NULL;
frr = NULL;
break;
case 1:
case 1://port2,3
fl = filt8_l1;
fm = filt8_m1;
fr = filt8_r1;
......@@ -705,26 +715,62 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
fdcr = filt8_dcr1;
fdclh = filt8_dcl1_h;
fdcrh = filt8_dcr1_h;
frl = NULL;
frr = NULL;
break;
default:
msg("pdsch_channel_estimation: nushift=%d -> ERROR\n",nushift);
return(-1);
return -1;
break;
}
} else {//pdsch_dmrs_type2
nushift = delta;
ue->frame_parms.nushift = nushift;
switch (delta) {
case 0://port 0,1
fl = filt8_l2;//left interpolation Filter should be fml
fr = filt8_r2;//right interpolation Filter should be fmr
fm = filt8_l2;
fmm = filt8_r2;
fml = filt8_ml2;
fmr = filt8_mr2;
frl = filt8_rl2;
frr = filt8_rm2;
fdcl = filt8_dcl1;
fdcr = filt8_dcr1;
fdclh = filt8_dcl1_h;
fdcrh = filt8_dcr1_h;
break;
case 2://port2,3
fl = filt8_l3;
fm = filt8_m2;
fr = filt8_r3;
fmm = filt8_mm2;
fml = filt8_l2;
fmr = filt8_r2;
frl = filt8_rl3;
frr = filt8_rr3;
fdcl = NULL;
fdcr = NULL;
fdclh = NULL;
fdcrh = NULL;
break;
// generate pilot
uint16_t rb_offset = (bwp_start_subcarrier - ue->frame_parms.first_carrier_offset) / 12;
int config_type = 0; // needs to be updated from higher layer
nr_pdsch_dmrs_rx(ue,Ns,ue->nr_gold_pdsch[eNB_offset][Ns][0], &pilot[0],1000,0,nb_rb_pdsch+rb_offset);
default:
msg("pdsch_channel_estimation: nushift=%d -> ERROR\n",nushift);
return -1;
break;
}
}
for (aarx=0; aarx<ue->frame_parms.nb_antennas_rx; aarx++) {
pil = (int16_t *)&pilot[rb_offset*((config_type==0) ? 6:4)];
pil = (int16_t *)&pilot[rb_offset*((config_type==pdsch_dmrs_type1) ? 6:4)];
k = k % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+nushift)];
dl_ch = (int16_t *)&dl_ch_estimates[aarx][ch_offset];
re_offset = k;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+re_offset+nushift)];
dl_ch = (int16_t *)&dl_ch_estimates[p*ue->frame_parms.nb_antennas_rx+aarx][ch_offset];
memset(dl_ch,0,4*(ue->frame_parms.ofdm_symbol_size));
if (ue->high_speed_flag==0) // multiply previous channel estimate by ch_est_alpha
......@@ -737,7 +783,8 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
printf("rxF addr %p p %d\n", rxF,p);
printf("dl_ch addr %p nushift %d\n",dl_ch,nushift);
#endif
//if ((ue->frame_parms.N_RB_DL&1)==0) {
if (config_type == pdsch_dmrs_type1) {
// Treat first 2 pilots specially (left edge)
ch[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
......@@ -867,7 +914,6 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
ch,
dl_ch,
8);
//}
// check if PRB crosses DC and improve estimates around DC
if ((bwp_start_subcarrier < ue->frame_parms.ofdm_symbol_size) && (bwp_start_subcarrier+nb_rb_pdsch*12 >= ue->frame_parms.ofdm_symbol_size)) {
......@@ -875,7 +921,7 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
uint16_t idxDC = 2*(ue->frame_parms.ofdm_symbol_size - bwp_start_subcarrier);
uint16_t idxPil = idxDC/2;
re_offset = k;
pil = (int16_t *)&pilot[rb_offset*((config_type==0) ? 6:4)];
pil = (int16_t *)&pilot[rb_offset*((config_type==pdsch_dmrs_type1) ? 6:4)];
pil += (idxPil-2);
dl_ch += (idxDC-4);
dl_ch = memset(dl_ch, 0, sizeof(int16_t)*10);
......@@ -920,11 +966,222 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
dl_ch,
8);
}
}
} else { //pdsch_dmrs_type2 |dmrs_r,dmrs_l,0,0,0,0,dmrs_r,dmrs_l,0,0,0,0|
// Treat first 4 pilots specially (left edge)
ch_l[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch_l[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
#ifdef DEBUG_PDSCH
printf("ch 0 %d\n",((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1]));
printf("pilot 0 : rxF - > (%d,%d) addr %p ch -> (%d,%d), pil -> (%d,%d) \n",rxF[0],rxF[1],&rxF[0],ch_l[0],ch_l[1],pil[0],pil[1]);
#endif
pil+=2;
re_offset = (re_offset+1) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
ch_r[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch_r[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
ch[0] = (ch_l[0]+ch_r[0])>>1;
ch[1] = (ch_l[1]+ch_r[1])>>1;
dl_ch[(0+2*nushift)] = ch[0];
dl_ch[(1+2*nushift)] = ch[1];
dl_ch[2+2*nushift] = ch[0];
dl_ch[3+2*nushift] = ch[1];
multadd_real_vector_complex_scalar(fl,
ch,
dl_ch,
8);
pil+=2;
re_offset = (re_offset+5) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
ch_l[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch_l[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
pil+=2;
re_offset = (re_offset+1) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
ch_r[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch_r[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
ch[0] = (ch_l[0]+ch_r[0])>>1;
ch[1] = (ch_l[1]+ch_r[1])>>1;
multadd_real_vector_complex_scalar(fr,
ch,
dl_ch,
8);
dl_ch+=12;
dl_ch[0+2*nushift] = ch[0];
dl_ch[1+2*nushift] = ch[1];
dl_ch[2+2*nushift] = ch[0];
dl_ch[3+2*nushift] = ch[1];
dl_ch+=4;
for (pilot_cnt=4; pilot_cnt<4*nb_rb_pdsch; pilot_cnt+=4) {
multadd_real_vector_complex_scalar(fml,
ch,
dl_ch,
8);
pil+=2;
re_offset = (re_offset+5) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
ch_l[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch_l[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
#ifdef DEBUG_PDSCH
printf("pilot %u : rxF - > (%d,%d) ch -> (%d,%d), pil -> (%d,%d) \n",pilot_cnt,rxF[0],rxF[1],ch_l[0],ch_l[1],pil[0],pil[1]);
#endif
pil+=2;
re_offset = (re_offset+1) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
ch_r[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch_r[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
ch[0] = (ch_l[0]+ch_r[0])>>1;
ch[1] = (ch_l[1]+ch_r[1])>>1;
#ifdef DEBUG_PDSCH
printf("pilot %u : rxF - > (%d,%d) ch -> (%d,%d), pil -> (%d,%d) \n",pilot_cnt+1,rxF[0],rxF[1],ch_r[0],ch_r[1],pil[0],pil[1]);
#endif
multadd_real_vector_complex_scalar(fmr,
ch,
dl_ch,
8);
dl_ch+=8;
dl_ch[0+2*nushift] = ch[0];
dl_ch[1+2*nushift] = ch[1];
dl_ch[2+2*nushift] = ch[0];
dl_ch[3+2*nushift] = ch[1];
multadd_real_vector_complex_scalar(fm,
ch,
dl_ch,
8);
pil+=2;
re_offset = (re_offset+5) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
ch_l[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch_l[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
pil+=2;
re_offset = (re_offset+1) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
ch_r[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch_r[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
#ifdef DEBUG_PDSCH
printf("pilot %u : rxF - > (%d,%d) ch -> (%d,%d), pil -> (%d,%d) \n",pilot_cnt+1,rxF[0],rxF[1],ch_r[0],ch_r[1],pil[0],pil[1]);
#endif
ch[0] = (ch_l[0]+ch_r[0])>>1;
ch[1] = (ch_l[1]+ch_r[1])>>1;
multadd_real_vector_complex_scalar(fmm,
ch,
dl_ch,
8);
dl_ch+=12;
dl_ch[0+2*nushift] = ch[0];
dl_ch[1+2*nushift] = ch[1];
dl_ch[2+2*nushift] = ch[0];
dl_ch[3+2*nushift] = ch[1];
dl_ch+=4;
}
// Treat last 2 pilots specially (right edge)
// dl_ch-2+nushift<<1
multadd_real_vector_complex_scalar(frl,
dl_ch-2+2*nushift,
dl_ch,
8);
multadd_real_vector_complex_scalar(frr,
dl_ch-14+2*nushift,/*14*/
dl_ch,
8);
// check if PRB crosses DC and improve estimates around DC
if ((bwp_start_subcarrier < ue->frame_parms.ofdm_symbol_size) && (bwp_start_subcarrier+nb_rb_pdsch*12 >= ue->frame_parms.ofdm_symbol_size) && (p<2)) {
dl_ch = (int16_t *)&dl_ch_estimates[p*ue->frame_parms.nb_antennas_rx+aarx][ch_offset];
uint16_t idxDC = 2*(ue->frame_parms.ofdm_symbol_size - bwp_start_subcarrier);
dl_ch += (idxDC-8);
dl_ch = memset(dl_ch, 0, sizeof(int16_t)*20);
dl_ch -= 2;
ch_r[0] = dl_ch[0];
ch_r[1]= dl_ch[1] ;
dl_ch += 22;
ch_l[0] = dl_ch[0];
ch_l[1]= dl_ch[1] ;
// for proper allignment of SIMD vectors
if((ue->frame_parms.N_RB_DL&1)==0) {
dl_ch -= 20;
//Interpolate fdcrl1 with ch_r
multadd_real_vector_complex_scalar(filt8_dcrl1,
ch_r,
dl_ch,
8);
//Interpolate fdclh1 with ch_l
multadd_real_vector_complex_scalar(filt8_dclh1,
ch_l,
dl_ch,
8);
dl_ch += 16;
//Interpolate fdcrh1 with ch_r
multadd_real_vector_complex_scalar(filt8_dcrh1,
ch_r,
dl_ch,
8);
//Interpolate fdcll1 with ch_l
multadd_real_vector_complex_scalar(filt8_dcll1,
ch_l,
dl_ch,
8);
} else {
dl_ch -= 28;
//Interpolate fdcrl1 with ch_r
multadd_real_vector_complex_scalar(filt8_dcrl2,
ch_r,
dl_ch,
8);
//Interpolate fdclh1 with ch_l
multadd_real_vector_complex_scalar(filt8_dclh2,
ch_l,
dl_ch,
8);
dl_ch += 16;
//Interpolate fdcrh1 with ch_r
multadd_real_vector_complex_scalar(filt8_dcrh2,
ch_r,
dl_ch,
8);
//Interpolate fdcll1 with ch_l
multadd_real_vector_complex_scalar(filt8_dcll2,
ch_l,
dl_ch,
8);
}
}
}
#ifdef DEBUG_PDSCH
dl_ch = (int16_t *)&dl_ch_estimates[aarx][ch_offset];
dl_ch = (int16_t *)&dl_ch_estimates[p*ue->frame_parms.nb_antennas_rx+aarx][ch_offset];
for(uint16_t idxP=0; idxP<ceil((float)nb_rb_pdsch*12/8); idxP++) {
for(uint8_t idxI=0; idxI<16; idxI+=2) {
printf("%d\t%d\t",dl_ch[idxP*16+idxI],dl_ch[idxP*16+idxI+1]);
......@@ -933,7 +1190,5 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
}
#endif
}
return(0);
}
openair1/PHY/NR_UE_TRANSPORT/nr_dlsch_demodulation.c
View file @ e097bec7
......@@ -151,6 +151,7 @@ int nr_rx_pdsch(PHY_VARS_NR_UE *ue,
uint32_t llr_offset_symbol;
//uint16_t bundle_L = 2;
uint8_t pilots=0;
uint8_t config_type = ue->dmrs_DownlinkConfig.pdsch_dmrs_type;
uint16_t n_tx=1, n_rx=1;
int32_t median[16];
uint32_t len;
......@@ -377,6 +378,7 @@ int nr_rx_pdsch(PHY_VARS_NR_UE *ue,
pdsch_vars[eNB_id]->pmi_ext,
symbol,
pilots,
config_type,
start_rb,
nb_rb_pdsch,
nr_tti_rx,
......@@ -393,7 +395,7 @@ int nr_rx_pdsch(PHY_VARS_NR_UE *ue,
return(-1);
}
len = (pilots==1)? (nb_rb*6):(nb_rb*12);
len = (pilots==1)? ((config_type==pdsch_dmrs_type1)?nb_rb*(12-6*dlsch0_harq->n_dmrs_cdm_groups): nb_rb*(12-4*dlsch0_harq->n_dmrs_cdm_groups)):(nb_rb*12);
#if UE_TIMING_TRACE
stop_meas(&ue->generic_stat_bis[ue->current_thread_id[nr_tti_rx]][slot]);
......@@ -417,6 +419,7 @@ int nr_rx_pdsch(PHY_VARS_NR_UE *ue,
dlsch,
symbol,
pilots,
len,
nb_rb);
#if UE_TIMING_TRACE
......@@ -1806,6 +1809,7 @@ void nr_dlsch_scale_channel(int **dl_ch_estimates_ext,
NR_UE_DLSCH_t **dlsch_ue,
uint8_t symbol,
uint8_t pilots,
uint32_t len,
unsigned short nb_rb)
{
......@@ -1815,10 +1819,7 @@ void nr_dlsch_scale_channel(int **dl_ch_estimates_ext,
unsigned char aatx,aarx;
__m128i *dl_ch128, ch_amp128;
if (pilots==1){
nb_rb = nb_rb>>1;
}
uint32_t nb_rb_0 = len/12 + ((len%12)?1:0);
// Determine scaling amplitude based the symbol
......@@ -1834,7 +1835,7 @@ void nr_dlsch_scale_channel(int **dl_ch_estimates_ext,
dl_ch128=(__m128i *)&dl_ch_estimates_ext[(aatx<<1)+aarx][symbol*nb_rb*12];
for (rb=0;rb<nb_rb;rb++) {
for (rb=0;rb<nb_rb_0;rb++) {
dl_ch128[0] = _mm_mulhi_epi16(dl_ch128[0],ch_amp128);
dl_ch128[0] = _mm_slli_epi16(dl_ch128[0],3);
......@@ -2360,6 +2361,7 @@ unsigned short nr_dlsch_extract_rbs_single(int **rxdataF,
unsigned char *pmi_ext,
unsigned char symbol,
uint8_t pilots,
uint8_t config_type,
unsigned short start_rb,
unsigned short nb_rb_pdsch,
unsigned char nr_tti_rx,
......@@ -2376,8 +2378,12 @@ unsigned short nr_dlsch_extract_rbs_single(int **rxdataF,
unsigned char j=0;
if (config_type==pdsch_dmrs_type1)
AssertFatal(frame_parms->nushift ==0 || frame_parms->nushift == 1,
"nushift %d is illegal\n",frame_parms->nushift);
else
AssertFatal(frame_parms->nushift ==0 || frame_parms->nushift == 2 || frame_parms->nushift == 4,
"nushift %d is illegal\n",frame_parms->nushift);
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
......@@ -2403,27 +2409,37 @@ unsigned short nr_dlsch_extract_rbs_single(int **rxdataF,
memcpy((void*)dl_ch0_ext,(void*)dl_ch0,12*sizeof(*dl_ch0_ext));
dl_ch0_ext+=12;
rxF_ext+=12;
} else {
} else {//the symbol contains DMRS
j=0;
for (i = (1-frame_parms->nushift);
i<12;
i+=2) {
if (config_type==pdsch_dmrs_type1){
for (i = (1-frame_parms->nushift); i<12; i+=2) {
rxF_ext[j]=rxF[i];
dl_ch0_ext[j]=dl_ch0[i];
j++;
}
dl_ch0_ext+=6;
rxF_ext+=6;
} else {
for (i = (2+frame_parms->nushift); i<6; i++) {
rxF_ext[j]=rxF[i];
dl_ch0_ext[j]=dl_ch0[i];
j++;
}
for (i = (8+frame_parms->nushift); i<12; i++) {
rxF_ext[j]=rxF[i];
dl_ch0_ext[j]=dl_ch0[i];
j++;
}
dl_ch0_ext+= 8;
rxF_ext+= 8;
}
}
dl_ch0+=12;
rxF+=12;
k+=12;
if (k>=frame_parms->ofdm_symbol_size) {
k=k-(frame_parms->ofdm_symbol_size);
k = k-(frame_parms->ofdm_symbol_size);
rxF = &rxdataF[aarx][k+(symbol*(frame_parms->ofdm_symbol_size))];
}
}
......
openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h
View file @ e097bec7
......@@ -715,6 +715,7 @@ unsigned short nr_dlsch_extract_rbs_single(int **rxdataF,
unsigned char *pmi_ext,
unsigned char symbol,
uint8_t pilots,
uint8_t config_type,
unsigned short start_rb,
unsigned short nb_pdsch_rb,
unsigned char nr_tti_rx,
......@@ -1003,6 +1004,7 @@ void nr_dlsch_scale_channel(int32_t **dl_ch_estimates_ext,
NR_UE_DLSCH_t **dlsch_ue,
uint8_t symbol,
uint8_t start_symbol,
uint32_t len,
uint16_t nb_rb);
/** \brief This is the top-level entry point for DLSCH decoding in UE. It should be replicated on several
......
openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c
View file @ e097bec7
......@@ -360,7 +360,7 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
ptrs_idx++;
} else if (!is_dmrs_sym || allowed_xlsch_re_in_dmrs_symbol(k, start_sc, cdm_grps_no_data, dmrs_type)) {
} else if (!is_dmrs_sym || allowed_xlsch_re_in_dmrs_symbol(k, start_sc, frame_parms->ofdm_symbol_size, cdm_grps_no_data, dmrs_type)) {
((int16_t*)txdataF[ap])[(sample_offsetF)<<1] = ((int16_t *) ulsch_ue->y)[m<<1];
((int16_t*)txdataF[ap])[((sample_offsetF)<<1) + 1] = ((int16_t *) ulsch_ue->y)[(m<<1) + 1];
......
openair1/PHY/impl_defs_nr.h
View file @ e097bec7
......@@ -496,8 +496,8 @@ typedef struct{ // CSI-MeasConfig IE is used to configure CSI-RS (reference sign
uint8_t reportTriggerSize;
} csi_MeasConfig_t;
typedef enum {
pdsch_dmrs_type1 = 1,
pdsch_dmrs_type2 = 2
pdsch_dmrs_type1 = 0,
pdsch_dmrs_type2 = 1
} pdsch_dmrs_type_t;
typedef enum {
pusch_dmrs_type1 = 0,
......
openair1/SCHED_NR_UE/phy_procedures_nr_ue.c
View file @ e097bec7
......@@ -738,14 +738,26 @@ int nr_ue_pdsch_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, int eNB_
// do channel estimation for first DMRS only
for (m = s0; m < 3; m++) {
if (((1<<m)&dlsch0->harq_processes[harq_pid]->dlDmrsSymbPos) > 0) {
for (uint8_t aatx=0; aatx<1; aatx++) {//for MIMO Config: it shall loop over no_layers
nr_pdsch_channel_estimation(ue,
0 /*eNB_id*/,
nr_tti_rx,
0 /*p*/,
aatx /*p*/,
m,
ue->frame_parms.first_carrier_offset+(BWPStart + pdsch_start_rb)*12,
pdsch_nb_rb);
LOG_D(PHY,"Channel Estimation in symbol %d\n",m);
LOG_D(PHY,"PDSCH Channel estimation gNB id %d, PDSCH antenna port %d, slot %d, symbol %d\n",0,aatx,nr_tti_rx,m);
#if 0
///LOG_M: the channel estimation
int nr_frame_rx = proc->frame_rx;
char filename[100];
for (uint8_t aarx=0; aarx<ue->frame_parms.nb_antennas_rx; aarx++) {
sprintf(filename,"PDSCH_CHANNEL_frame%d_slot%d_sym%d_port%d_rx%d.m", nr_frame_rx, nr_tti_rx, m, aatx,aarx);
int **dl_ch_estimates = ue->pdsch_vars[ue->current_thread_id[nr_tti_rx]][0]->dl_ch_estimates;
LOG_M(filename,"channel_F",&dl_ch_estimates[aatx*ue->frame_parms.nb_antennas_rx+aarx][ue->frame_parms.ofdm_symbol_size*m],ue->frame_parms.ofdm_symbol_size, 1, 1);
}
#endif
}
break;
}
}
......
targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band78.tm1.106PRB.usrpn300.conf
View file @ e097bec7
......@@ -247,8 +247,15 @@ RUs = (
max_pdschReferenceSignalPower = -27;
max_rxgain = 75;
eNB_instances = [0];
#beamforming 1x4 matrix:
bf_weights = [0x00007fff, 0x0000, 0x0000, 0x0000];
##beamforming 1x2 matrix: 1 layer x 2 antennas
bf_weights = [0x00007fff, 0x0000];
##beamforming 1x4 matrix: 1 layer x 4 antennas
#bf_weights = [0x00007fff, 0x0000,0x0000, 0x0000];
## beamforming 2x2 matrix:
# bf_weights = [0x00007fff, 0x00000000, 0x00000000, 0x00007fff];
## beamforming 4x4 matrix:
#bf_weights = [0x00007fff, 0x0000, 0x0000, 0x0000, 0x00000000, 0x00007fff, 0x0000, 0x0000, 0x0000, 0x0000, 0x00007fff, 0x0000, 0x0000, 0x0000, 0x0000, 0x00007fff];
sdr_addrs = "addr=192.168.10.2,mgmt_addr=192.168.10.2,second_addr=192.168.20.2";
clock_src = "external";
}
......
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