diff --git a/openair1/PHY/INIT/nr_parms.c b/openair1/PHY/INIT/nr_parms.c index 92d8c2a1c6..171980d343 100644 --- a/openair1/PHY/INIT/nr_parms.c +++ b/openair1/PHY/INIT/nr_parms.c @@ -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; diff --git a/openair1/PHY/NR_REFSIG/dmrs_nr.c b/openair1/PHY/NR_REFSIG/dmrs_nr.c index 415e6adfa2..72cb60003e 100644 --- a/openair1/PHY/NR_REFSIG/dmrs_nr.c +++ b/openair1/PHY/NR_REFSIG/dmrs_nr.c @@ -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; idmrs_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>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 @@ -248,18 +248,19 @@ uint8_t nr_generate_pdsch(PHY_VARS_gNB *gNB, /// Antenna port mapping //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; lStartSymbolIndex+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>4; i++) { for (int j=0; j<8; j++) { - printf("%d %d\t", mod_dmrs[((i<<3)+j)<<1], mod_dmrs[(((i<<3)+j)<<1)+1]); + printf("%d %d\t", mod_dmrs[((i<<3)+j)<<1], mod_dmrs[(((i<<3)+j)<<1)+1]); } printf("\n"); } @@ -283,55 +284,71 @@ 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; - 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; lStartSymbolIndex+rel15->NrOfSymbols; l++) { - k = start_sc; - for (int i=0; irbSize*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; + 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 i=0; irbSize*NR_NB_SC_PER_RB; i++) { + + 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)], - ((int16_t*)txdataF[ap])[((l*frame_parms->ofdm_symbol_size + k)<<1) + 1 + (2*txdataF_offset)]); + 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)], + ((int16_t*)txdataF[ap])[((l*frame_parms->ofdm_symbol_size + k)<<1) + 1 + (2*txdataF_offset)]); #endif - dmrs_idx++; - 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)) { - ((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; + dmrs_idx++; + k_prime++; + k_prime&=1; + n+=(k_prime)?0:1; + + } 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 - printf("m %d\t l %d \t k %d \t txdataF: %d %d\n", - m, l, k, ((int16_t*)txdataF[ap])[((l*frame_parms->ofdm_symbol_size + k)<<1) + (2*txdataF_offset)], - ((int16_t*)txdataF[ap])[((l*frame_parms->ofdm_symbol_size + k)<<1) + 1 + (2*txdataF_offset)]); + printf("m %d\t l %d \t k %d \t txdataF: %d %d\n", + m, l, k, ((int16_t*)txdataF[ap])[((l*frame_parms->ofdm_symbol_size + k)<<1) + (2*txdataF_offset)], + ((int16_t*)txdataF[ap])[((l*frame_parms->ofdm_symbol_size + k)<<1) + 1 + (2*txdataF_offset)]); #endif - m++; - } - } - if (++k >= frame_parms->ofdm_symbol_size) - k -= frame_parms->ofdm_symbol_size; - } //RE loop + m++; + } + } + if (++k >= frame_parms->ofdm_symbol_size) + k -= frame_parms->ofdm_symbol_size; + } //RE loop } // symbol loop }// layer loop + + dlsch->slot_tx[slot]=0; }// dlsch loop return 0; diff --git a/openair1/PHY/NR_TRANSPORT/nr_sch_dmrs.c b/openair1/PHY/NR_TRANSPORT/nr_sch_dmrs.c index 04045380eb..e6a9b8c5dc 100644 --- a/openair1/PHY/NR_TRANSPORT/nr_sch_dmrs.c +++ b/openair1/PHY/NR_TRANSPORT/nr_sch_dmrs.c @@ -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) { diff --git a/openair1/PHY/NR_UE_ESTIMATION/filt16a_32.c b/openair1/PHY/NR_UE_ESTIMATION/filt16a_32.c index dec3d7cc2d..990f3101fd 100644 --- a/openair1/PHY/NR_UE_ESTIMATION/filt16a_32.c +++ b/openair1/PHY/NR_UE_ESTIMATION/filt16a_32.c @@ -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}; diff --git a/openair1/PHY/NR_UE_ESTIMATION/filt16a_32.h b/openair1/PHY/NR_UE_ESTIMATION/filt16a_32.h index e350985b0a..ef6137a07f 100644 --- a/openair1/PHY/NR_UE_ESTIMATION/filt16a_32.h +++ b/openair1/PHY/NR_UE_ESTIMATION/filt16a_32.h @@ -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 diff --git a/openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c b/openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c index 71cd4c44e4..d84943962a 100644 --- a/openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c +++ b/openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c @@ -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 @@ -680,51 +678,99 @@ 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; - break; - - case 1: - fl = filt8_l1; - fm = filt8_m1; - fr = filt8_r1; - fmm = filt8_mm1; - fml = filt8_ml1; - fmr = filt8_m1; - fdcl = filt8_dcl1; - fdcr = filt8_dcr1; - fdclh = filt8_dcl1_h; - fdcrh = filt8_dcr1_h; - break; - - default: - msg("pdsch_channel_estimation: nushift=%d -> ERROR\n",nushift); - return(-1); - break; - } - - - // generate pilot + // generate pilot for gNB port number 1000+p 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); + 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://port2,3 + fl = filt8_l1; + fm = filt8_m1; + fr = filt8_r1; + fmm = filt8_mm1; + fml = filt8_ml1; + fmr = filt8_m1; + fdcl = filt8_dcl1; + 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; + 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; + + default: + msg("pdsch_channel_estimation: nushift=%d -> ERROR\n",nushift); + return -1; + break; + } + } for (aarx=0; aarxframe_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); @@ -920,20 +966,229 @@ 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; idxPdmrs_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) { @@ -1815,17 +1819,14 @@ 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 ch_amp = 1024*8; //((pilots) ? (dlsch_ue[0]->sqrt_rho_b) : (dlsch_ue[0]->sqrt_rho_a)); - LOG_D(PHY,"Scaling PDSCH Chest in OFDM symbol %d by %d, pilots %d nb_rb %d NCP %d symbol %d\n",symbol,ch_amp,pilots,nb_rb,frame_parms->Ncp,symbol); - // printf("Scaling PDSCH Chest in OFDM symbol %d by %d\n",symbol_mod,ch_amp); + LOG_D(PHY,"Scaling PDSCH Chest in OFDM symbol %d by %d, pilots %d nb_rb %d NCP %d symbol %d\n",symbol,ch_amp,pilots,nb_rb,frame_parms->Ncp,symbol); + // printf("Scaling PDSCH Chest in OFDM symbol %d by %d\n",symbol_mod,ch_amp); ch_amp128 = _mm_set1_epi16(ch_amp); // Q3.13 @@ -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;rbnushift ==0 || frame_parms->nushift == 1, - "nushift %d is illegal\n",frame_parms->nushift); + 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; aarxnb_antennas_rx; aarx++) { @@ -2397,34 +2403,44 @@ unsigned short nr_dlsch_extract_rbs_single(int **rxdataF, if (k>frame_parms->ofdm_symbol_size) { k = k-frame_parms->ofdm_symbol_size; rxF = &rxdataF[aarx][(k+(symbol*(frame_parms->ofdm_symbol_size)))]; - } + } if (pilots==0) { memcpy((void*)rxF_ext,(void*)rxF,12*sizeof(*rxF_ext)); memcpy((void*)dl_ch0_ext,(void*)dl_ch0,12*sizeof(*dl_ch0_ext)); dl_ch0_ext+=12; rxF_ext+=12; - } else { - j=0; - - 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 {//the symbol contains DMRS + j=0; + 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); - rxF = &rxdataF[aarx][k+(symbol*(frame_parms->ofdm_symbol_size))]; + k = k-(frame_parms->ofdm_symbol_size); + rxF = &rxdataF[aarx][k+(symbol*(frame_parms->ofdm_symbol_size))]; } } } diff --git a/openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h b/openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h index 746c7edfa9..2998f22083 100644 --- a/openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h +++ b/openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h @@ -714,9 +714,10 @@ unsigned short nr_dlsch_extract_rbs_single(int **rxdataF, unsigned short pmi, unsigned char *pmi_ext, unsigned char symbol, - uint8_t pilots, - unsigned short start_rb, - unsigned short nb_pdsch_rb, + uint8_t pilots, + uint8_t config_type, + unsigned short start_rb, + unsigned short nb_pdsch_rb, unsigned char nr_tti_rx, uint32_t high_speed_flag, NR_DL_FRAME_PARMS *frame_parms); @@ -1002,7 +1003,8 @@ void nr_dlsch_scale_channel(int32_t **dl_ch_estimates_ext, NR_DL_FRAME_PARMS *frame_parms, NR_UE_DLSCH_t **dlsch_ue, uint8_t symbol, - uint8_t start_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 diff --git a/openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c b/openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c index ea79fd467f..61e39aa79d 100644 --- a/openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c +++ b/openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c @@ -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]; diff --git a/openair1/PHY/impl_defs_nr.h b/openair1/PHY/impl_defs_nr.h index 3e09f3f593..9d6f1703e5 100644 --- a/openair1/PHY/impl_defs_nr.h +++ b/openair1/PHY/impl_defs_nr.h @@ -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, diff --git a/openair1/SCHED_NR_UE/phy_procedures_nr_ue.c b/openair1/SCHED_NR_UE/phy_procedures_nr_ue.c index b0d765b746..0903dde819 100644 --- a/openair1/SCHED_NR_UE/phy_procedures_nr_ue.c +++ b/openair1/SCHED_NR_UE/phy_procedures_nr_ue.c @@ -738,15 +738,27 @@ 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<harq_processes[harq_pid]->dlDmrsSymbPos) > 0) { - nr_pdsch_channel_estimation(ue, - 0 /*eNB_id*/, - nr_tti_rx, - 0 /*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); - break; + 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, + aatx /*p*/, + m, + ue->frame_parms.first_carrier_offset+(BWPStart + pdsch_start_rb)*12, + pdsch_nb_rb); + 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; aarxframe_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; } } for (m = s0; m < (s1 + s0); m++) { diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band78.tm1.106PRB.usrpn300.conf b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band78.tm1.106PRB.usrpn300.conf index 6f081fa24f..56078029af 100644 --- a/targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band78.tm1.106PRB.usrpn300.conf +++ b/targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band78.tm1.106PRB.usrpn300.conf @@ -23,7 +23,7 @@ gNBs = ssb_SubcarrierOffset = 0; pdsch_AntennaPorts = 1; - + servingCellConfigCommon = ( { #spCellConfigCommon @@ -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"; }