Skip to content

O
OpenXG-RAN
Commit b0b5cb21 authored by Florian Kaltenberger's avatar Florian Kaltenberger
Browse files
Options

Beamforming is now only done when necessary. This patch is based on one from... 

Beamforming is now only done when necessary. This patch is based on one from enhancement-10-harmony.
parent 55075923
Show whitespace changes
Inline Side-by-side
Showing with 33 additions and 20 deletions
openair1/PHY/INIT/lte_init.c
View file @ b0b5cb21
......@@ -684,6 +684,7 @@ void phy_config_dedicated_eNB(uint8_t Mod_id,
break;
case AntennaInfoDedicated__transmissionMode_tm7:
lte_gold_ue_spec_port5(eNB->lte_gold_uespec_port5_table[0],eNB->frame_parms.Nid_cell,rnti);
eNB->do_precoding = 1;
eNB->transmission_mode[UE_id] = 7;
break;
default:
......
openair1/PHY/MODULATION/defs.h
View file @ b0b5cb21
......@@ -82,7 +82,7 @@ void normal_prefix_mod(int32_t *txdataF,int32_t *txdata,uint8_t nsymb,LTE_DL_FRA
void do_OFDM_mod(int32_t **txdataF, int32_t **txdata, uint32_t frame,uint16_t next_slot, LTE_DL_FRAME_PARMS *frame_parms);
void do_OFDM_mod_symbol(LTE_eNB_COMMON *eNB_common_vars, int eNB_id, uint16_t next_slot, LTE_DL_FRAME_PARMS *frame_parms);
void do_OFDM_mod_symbol(LTE_eNB_COMMON *eNB_common_vars, int eNB_id, uint16_t next_slot, LTE_DL_FRAME_PARMS *frame_parms,int do_precoding);
void remove_7_5_kHz(PHY_VARS_eNB *phy_vars_eNB,uint8_t subframe);
......
openair1/PHY/MODULATION/ofdm_mod.c
View file @ b0b5cb21
......@@ -285,16 +285,16 @@ void do_OFDM_mod(int32_t **txdataF, int32_t **txdata, uint32_t frame,uint16_t ne
}
// OFDM modulation for each symbol
void do_OFDM_mod_symbol(LTE_eNB_COMMON *eNB_common_vars, int eNB_id, uint16_t next_slot, LTE_DL_FRAME_PARMS *frame_parms)
void do_OFDM_mod_symbol(LTE_eNB_COMMON *eNB_common_vars, int eNB_id, uint16_t next_slot, LTE_DL_FRAME_PARMS *frame_parms,int do_precoding)
{
int aa, l, slot_offset;
int aa, l, slot_offset, slot_offsetF;
int32_t **txdataF = eNB_common_vars->txdataF[eNB_id];
int32_t **txdataF_BF = eNB_common_vars->txdataF_BF[eNB_id];
int32_t **txdata = eNB_common_vars->txdata[eNB_id];
slot_offset = (next_slot)*(frame_parms->samples_per_tti>>1);
slot_offsetF = (next_slot)*(frame_parms->ofdm_symbol_size)*((frame_parms->Ncp==EXTENDED) ? 6 : 7);
//printf("Thread %d starting ... aa %d (%llu)\n",omp_get_thread_num(),aa,rdtsc());
for (l=0; l<frame_parms->symbols_per_tti>>1; l++) {
......@@ -302,13 +302,13 @@ void do_OFDM_mod_symbol(LTE_eNB_COMMON *eNB_common_vars, int eNB_id, uint16_t ne
//printf("do_OFDM_mod_l, slot=%d, l=%d, NUMBER_OF_OFDM_CARRIERS=%d,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES=%d\n",next_slot, l,NUMBER_OF_OFDM_CARRIERS,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_BEAM_PRECODING,1);
beam_precoding(txdataF,txdataF_BF,frame_parms,eNB_common_vars->beam_weights[eNB_id],next_slot,l,aa);
if (do_precoding==1) beam_precoding(txdataF,txdataF_BF,frame_parms,eNB_common_vars->beam_weights[eNB_id],next_slot,l,aa);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_BEAM_PRECODING,0);
//PMCH case not implemented...
if (frame_parms->Ncp == 1)
PHY_ofdm_mod(txdataF_BF[aa], // input
if (frame_parms->Ncp == EXTENDED)
PHY_ofdm_mod((do_precoding == 1)?txdataF_BF[aa]:&txdataF[aa][slot_offsetF+l*frame_parms->ofdm_symbol_size], // input
&txdata[aa][slot_offset+l*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES], // output
frame_parms->ofdm_symbol_size,
1, // number of symbols
......@@ -316,7 +316,7 @@ void do_OFDM_mod_symbol(LTE_eNB_COMMON *eNB_common_vars, int eNB_id, uint16_t ne
CYCLIC_PREFIX);
else {
if (l==0) {
PHY_ofdm_mod(txdataF_BF[aa], // input
PHY_ofdm_mod((do_precoding==1)?txdataF_BF[aa]:&txdataF[aa][slot_offsetF+l*frame_parms->ofdm_symbol_size], // input
&txdata[aa][slot_offset], // output
frame_parms->ofdm_symbol_size,
1, // number of symbols
......@@ -324,7 +324,7 @@ void do_OFDM_mod_symbol(LTE_eNB_COMMON *eNB_common_vars, int eNB_id, uint16_t ne
CYCLIC_PREFIX);
} else {
PHY_ofdm_mod(txdataF_BF[aa], // input
PHY_ofdm_mod((do_precoding==1)?txdataF_BF[aa]:&txdataF[aa][slot_offsetF+l*frame_parms->ofdm_symbol_size], // input
&txdata[aa][slot_offset+OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES0+(l-1)*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES], // output
frame_parms->ofdm_symbol_size,
1, // number of symbols
......
openair1/PHY/defs.h
View file @ b0b5cb21
......@@ -415,6 +415,8 @@ typedef struct PHY_VARS_eNB_s {
int single_thread_flag;
openair0_rf_map rf_map;
int abstraction_flag;
// indicator for precoding function (eNB,3GPP_eNB_BBU)
int do_precoding;
void (*do_prach)(struct PHY_VARS_eNB_s *eNB);
void (*fep)(struct PHY_VARS_eNB_s *eNB);
int (*td)(struct PHY_VARS_eNB_s *eNB,int UE_id,int harq_pid,int llr8_flag);
......
openair1/SIMULATION/LTE_PHY/dlsim.c
View file @ b0b5cb21
......@@ -2409,12 +2409,14 @@ int main(int argc, char **argv)
do_OFDM_mod_symbol(&eNB->common_vars,
eNB_id,
(subframe*2),
&eNB->frame_parms);
&eNB->frame_parms,
eNB->do_precoding);
do_OFDM_mod_symbol(&eNB->common_vars,
eNB_id,
(subframe*2)+1,
&eNB->frame_parms);
&eNB->frame_parms,
eNB->do_precoding);
stop_meas(&eNB->ofdm_mod_stats);
......
targets/RT/USER/lte-enb.c
View file @ b0b5cb21
......@@ -298,14 +298,16 @@ void do_OFDM_mod_rt(int subframe,PHY_VARS_eNB *phy_vars_eNB)
do_OFDM_mod_symbol(&phy_vars_eNB->common_vars,
0,
subframe<<1,
&phy_vars_eNB->frame_parms);
&phy_vars_eNB->frame_parms,
&phy_vars_eNB->do_precoding);
// if S-subframe generate first slot only
if (subframe_select(&phy_vars_eNB->frame_parms,subframe) == SF_DL) {
do_OFDM_mod_symbol(&phy_vars_eNB->common_vars,
0,
1+(subframe<<1),
&phy_vars_eNB->frame_parms);
&phy_vars_eNB->frame_parms,
&phy_vars_eNB->do_precoding);
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_OFDM_MODULATION,0);
......@@ -1637,6 +1639,7 @@ void init_eNB(eNB_func_t node_function[], eNB_timing_t node_timing[],int nb_inst
case NGFI_RRU_IF5:
eNB->do_prach = NULL;
eNB->fep = eNB_fep_rru_if5;
eNB->do_precoding = 0;
eNB->td = NULL;
eNB->te = NULL;
eNB->proc_uespec_rx = NULL;
......@@ -1661,6 +1664,7 @@ void init_eNB(eNB_func_t node_function[], eNB_timing_t node_timing[],int nb_inst
}
break;
case NGFI_RRU_IF4p5:
eNB->do_precoding = 0;
eNB->do_prach = do_prach;
eNB->fep = eNB_fep_full;//(single_thread_flag==1) ? eNB_fep_full_2thread : eNB_fep_full;
eNB->td = NULL;
......@@ -1690,6 +1694,7 @@ void init_eNB(eNB_func_t node_function[], eNB_timing_t node_timing[],int nb_inst
break;
case eNodeB_3GPP:
eNB->do_precoding = eNB->frame_parms.nb_antennas_tx==eNB->frame_parms.nb_antenna_ports_eNB;
eNB->do_prach = do_prach;
eNB->fep = eNB_fep_full;//(single_thread_flag==1) ? eNB_fep_full_2thread : eNB_fep_full;
eNB->td = ulsch_decoding_data;//(single_thread_flag==1) ? ulsch_decoding_data_2thread : ulsch_decoding_data;
......@@ -1710,6 +1715,7 @@ void init_eNB(eNB_func_t node_function[], eNB_timing_t node_timing[],int nb_inst
eNB->ifdevice.host_type = BBU_HOST;
break;
case eNodeB_3GPP_BBU:
eNB->do_precoding = eNB->frame_parms.nb_antennas_tx==eNB->frame_parms.nb_antenna_ports_eNB;
eNB->do_prach = do_prach;
eNB->fep = eNB_fep_full;//(single_thread_flag==1) ? eNB_fep_full_2thread : eNB_fep_full;
eNB->td = ulsch_decoding_data;//(single_thread_flag==1) ? ulsch_decoding_data_2thread : ulsch_decoding_data;
......@@ -1742,6 +1748,7 @@ void init_eNB(eNB_func_t node_function[], eNB_timing_t node_timing[],int nb_inst
}
break;
case NGFI_RCC_IF4p5:
eNB->do_precoding = 0;
eNB->do_prach = do_prach;
eNB->fep = NULL;
eNB->td = ulsch_decoding_data;//(single_thread_flag==1) ? ulsch_decoding_data_2thread : ulsch_decoding_data;
......@@ -1765,6 +1772,7 @@ void init_eNB(eNB_func_t node_function[], eNB_timing_t node_timing[],int nb_inst
break;
case NGFI_RAU_IF4p5:
eNB->do_precoding = 0;
eNB->do_prach = do_prach;
eNB->fep = NULL;
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment