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added handling for N_TA_OFFSET computation and changed some use of FAPI configuration in RU (used ru->config instead of ru->gNB_list[0]->config)

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This commit is contained in:
Raymond Knopp
2020-02-17 14:19:42 +01:00
parent 456d1f9df9
commit 844da79531
2 changed files with 73 additions and 30 deletions
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executables/nr-ru.c
+72 -28
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@@ -307,7 +307,7 @@ void fh_if5_south_out(RU_t *ru, int frame, int slot, uint64_t timestamp)
// southbound IF4p5 fronthaul
void fh_if4p5_south_out(RU_t *ru, int frame, int slot, uint64_t timestamp)
{
nfapi_nr_config_request_scf_t *cfg = &ru->gNB_list[0]->gNB_config;
nfapi_nr_config_request_scf_t *cfg = &ru->config;
if (ru == RC.ru[0]) VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TST, ru->proc.timestamp_tx&0xffffffff );
LOG_D(PHY,"Sending IF4p5 for frame %d subframe %d\n",ru->proc.frame_tx,ru->proc.tti_tx);
@@ -516,7 +516,7 @@ void fh_if5_north_asynch_in(RU_t *ru,int *frame,int *slot) {
void fh_if4p5_north_asynch_in(RU_t *ru,int *frame,int *slot) {
NR_DL_FRAME_PARMS *fp = ru->nr_frame_parms;
nfapi_nr_config_request_scf_t *cfg = &ru->gNB_list[0]->gNB_config;
nfapi_nr_config_request_scf_t *cfg = &ru->config;
RU_proc_t *proc = &ru->proc;
uint16_t packet_type;
uint32_t symbol_number,symbol_mask,symbol_mask_full=0;
@@ -711,7 +711,7 @@ void rx_rf(RU_t *ru,int *frame,int *slot) {
void tx_rf(RU_t *ru,int frame,int slot, uint64_t timestamp) {
RU_proc_t *proc = &ru->proc;
NR_DL_FRAME_PARMS *fp = ru->nr_frame_parms;
nfapi_nr_config_request_scf_t *cfg = &ru->gNB_list[0]->gNB_config;
nfapi_nr_config_request_scf_t *cfg = &ru->config;
void *txp[ru->nb_tx];
unsigned int txs;
int i,txsymb;
@@ -798,7 +798,7 @@ void *ru_thread_asynch_rxtx( void *param ) {
static int ru_thread_asynch_rxtx_status;
RU_t *ru = (RU_t *)param;
RU_proc_t *proc = &ru->proc;
nfapi_nr_config_request_scf_t *cfg = &ru->gNB_list[0]->gNB_config;
nfapi_nr_config_request_scf_t *cfg = &ru->config;
int slot=0, frame=0;
// wait for top-level synchronization and do one acquisition to get timestamp for setting frame/subframe
wait_sync("ru_thread_asynch_rxtx");
@@ -1043,10 +1043,10 @@ int wakeup_prach_ru(RU_t *ru) {
void fill_rf_config(RU_t *ru, char *rf_config_file) {
int i;
NR_DL_FRAME_PARMS *fp = ru->nr_frame_parms;
nfapi_nr_config_request_scf_t *gNB_config = &ru->gNB_list[0]->gNB_config; //tmp index
nfapi_nr_config_request_scf_t *config = &ru->config; //tmp index
openair0_config_t *cfg = &ru->openair0_cfg;
int mu = gNB_config->ssb_config.scs_common.value;
int N_RB = gNB_config->carrier_config.dl_grid_size[gNB_config->ssb_config.scs_common.value].value;
int mu = config->ssb_config.scs_common.value;
int N_RB = config->carrier_config.dl_grid_size[config->ssb_config.scs_common.value].value;
if (mu == NR_MU_0) { //or if LTE
if(N_RB == 100) {
@@ -1131,7 +1131,7 @@ void fill_rf_config(RU_t *ru, char *rf_config_file) {
AssertFatal(0 == 1,"Numerology %d not supported for the moment\n",mu);
}
if (gNB_config->cell_config.frame_duplex_type.value==TDD)
if (config->cell_config.frame_duplex_type.value==TDD)
cfg->duplex_mode = duplex_mode_TDD;
else //FDD
cfg->duplex_mode = duplex_mode_FDD;
@@ -1170,7 +1170,7 @@ int setup_RU_buffers(RU_t *ru) {
int card,ant;
//uint16_t N_TA_offset = 0;
NR_DL_FRAME_PARMS *frame_parms;
//nfapi_nr_config_request_t *gNB_config = ru->gNB_list[0]->gNB_config; //tmp index
nfapi_nr_config_request_scf_t *config = &ru->config;
if (ru) {
frame_parms = ru->nr_frame_parms;
@@ -1179,12 +1179,54 @@ int setup_RU_buffers(RU_t *ru) {
printf("ru pointer is NULL\n");
return(-1);
}
int mu = config->ssb_config.scs_common.value;
int N_RB = config->carrier_config.dl_grid_size[config->ssb_config.scs_common.value].value;
/* if (frame_parms->frame_type == TDD) {
if (frame_parms->N_RB_DL == 100) ru->N_TA_offset = 624;
else if (frame_parms->N_RB_DL == 50) ru->N_TA_offset = 624/2;
else if (frame_parms->N_RB_DL == 25) ru->N_TA_offset = 624/4;
} */
if (config->cell_config.frame_duplex_type.value == TDD) {
int N_TA_offset = config->carrier_config.uplink_frequency.value < 6000000 ? 400 : 431; // reference samples for 25600Tc @ 30.72 Ms/s for FR1, same @ 61.44 Ms/s for FR2
double factor=1;
switch (mu) {
case 0: //15 kHz scs
AssertFatal(N_TA_offset == 400,"scs_common 15kHz only for FR1\n");
if (N_RB <= 25) factor = .25; // 7.68 Ms/s
else if (N_RB <=50) factor = .5; // 15.36 Ms/s
else if (N_RB <=75) factor = 1.0; // 30.72 Ms/s
else if (N_RB <=100) factor = 1.0; // 30.72 Ms/s
else AssertFatal(1==0,"Too many PRBS for mu=0\n");
break;
case 1: //30 kHz sc
AssertFatal(N_TA_offset == 400,"scs_common 30kHz only for FR1\n");
if (N_RB <= 106) factor = 2.0; // 61.44 Ms/s
else if (N_RB <= 275) factor = 4.0; // 122.88 Ms/s
break;
case 2: //60 kHz scs
AssertFatal(1==0,"scs_common should not be 60 kHz\n");
break;
case 3: //120 kHz scs
AssertFatal(N_TA_offset == 431,"scs_common 120kHz only for FR2\n");
break;
case 4: //240 kHz scs
AssertFatal(1==0,"scs_common should not be 60 kHz\n");
if (N_RB <= 32) factor = 1.0; // 61.44 Ms/s
else if (N_RB <= 66) factor = 2.0; // 122.88 Ms/s
else AssertFatal(1==0,"N_RB %d is too big for curretn FR2 implementation\n",N_RB);
break;
if (N_RB == 100) ru->N_TA_offset = 624;
else if (N_RB == 50) ru->N_TA_offset = 624/2;
else if (N_RB == 25) ru->N_TA_offset = 624/4;
}
if (frame_parms->threequarter_fs == 1) factor = factor*.75;
ru->N_TA_offset = (int)(N_TA_offset * factor);
LOG_I(PHY,"RU %d Setting N_TA_offset to %d samples (factor %f, UL Freq %d, N_RB %d)\n",ru->idx,ru->N_TA_offset,factor,
config->carrier_config.uplink_frequency.value, N_RB);
}
else ru->N_TA_offset = 0;
if (ru->openair0_cfg.mmapped_dma == 1) {
// replace RX signal buffers with mmaped HW versions
for (i=0; i<ru->nb_rx; i++) {
@@ -1397,7 +1439,7 @@ void *ru_thread( void *param ) {
int i = 0;
int aa;
nfapi_nr_config_request_scf_t *cfg = &ru->gNB_list[0]->gNB_config;
nfapi_nr_config_request_scf_t *cfg = &ru->config;
// set default return value
ru_thread_status = 0;
@@ -1409,7 +1451,7 @@ void *ru_thread( void *param ) {
if(emulate_rf) {
fill_rf_config(ru,ru->rf_config_file);
nr_init_frame_parms(&ru->gNB_list[0]->gNB_config, fp);
nr_init_frame_parms(&ru->config, fp);
nr_dump_frame_parms(fp);
nr_phy_init_RU(ru);
@@ -1429,8 +1471,10 @@ void *ru_thread( void *param ) {
AssertFatal(ret==0,"Cannot connect to remote radio\n");
}
memcpy((void*)&ru->config,(void*)&RC.gNB[0]->gNB_config,sizeof(ru->config));
if (ru->if_south == LOCAL_RF) { // configure RF parameters only
nr_init_frame_parms(&ru->gNB_list[0]->gNB_config, fp);
nr_init_frame_parms(&ru->config, fp);
nr_dump_frame_parms(fp);
fill_rf_config(ru,ru->rf_config_file);
nr_phy_init_RU(ru);
@@ -1907,7 +1951,7 @@ void configure_ru(int idx,
RU_t *ru = RC.ru[idx];
RRU_config_t *config = (RRU_config_t *)arg;
RRU_capabilities_t *capabilities = (RRU_capabilities_t *)arg;
nfapi_nr_config_request_scf_t *gNB_config = &ru->gNB_list[0]->gNB_config;
nfapi_nr_config_request_scf_t *cfg = &ru->config;
int ret;
LOG_I(PHY, "Received capabilities from RRU %d\n",idx);
@@ -1930,15 +1974,15 @@ void configure_ru(int idx,
//config->tdd_config_S[0] = ru->nr_frame_parms->tdd_config_S;
config->att_tx[0] = ru->att_tx;
config->att_rx[0] = ru->att_rx;
config->N_RB_DL[0] = gNB_config->carrier_config.dl_grid_size[gNB_config->ssb_config.scs_common.value].value;
config->N_RB_UL[0] = gNB_config->carrier_config.dl_grid_size[gNB_config->ssb_config.scs_common.value].value;
config->N_RB_DL[0] = cfg->carrier_config.dl_grid_size[cfg->ssb_config.scs_common.value].value;
config->N_RB_UL[0] = cfg->carrier_config.dl_grid_size[cfg->ssb_config.scs_common.value].value;
config->threequarter_fs[0] = ru->nr_frame_parms->threequarter_fs;
/* if (ru->if_south==REMOTE_IF4p5) {
config->prach_FreqOffset[0] = ru->nr_frame_parms->prach_config_common.prach_ConfigInfo.prach_FreqOffset;
config->prach_ConfigIndex[0] = ru->nr_frame_parms->prach_config_common.prach_ConfigInfo.prach_ConfigIndex;
LOG_I(PHY,"REMOTE_IF4p5: prach_FrequOffset %d, prach_ConfigIndex %d\n",
config->prach_FreqOffset[0],config->prach_ConfigIndex[0]);*/
nr_init_frame_parms(&ru->gNB_list[0]->gNB_config, ru->nr_frame_parms);
nr_init_frame_parms(&ru->config, ru->nr_frame_parms);
nr_phy_init_RU(ru);
}
@@ -1946,23 +1990,23 @@ void configure_rru(int idx,
void *arg) {
RRU_config_t *config = (RRU_config_t *)arg;
RU_t *ru = RC.ru[idx];
nfapi_nr_config_request_scf_t *gNB_config = &ru->gNB_list[0]->gNB_config;
nfapi_nr_config_request_scf_t *cfg = &ru->config;
ru->nr_frame_parms->nr_band = config->band_list[0];
ru->nr_frame_parms->dl_CarrierFreq = config->tx_freq[0];
ru->nr_frame_parms->ul_CarrierFreq = config->rx_freq[0];
if (ru->nr_frame_parms->dl_CarrierFreq == ru->nr_frame_parms->ul_CarrierFreq) {
gNB_config->cell_config.frame_duplex_type.value = TDD;
cfg->cell_config.frame_duplex_type.value = TDD;
//ru->nr_frame_parms->tdd_config = config->tdd_config[0];
//ru->nr_frame_parms->tdd_config_S = config->tdd_config_S[0];
} else
gNB_config->cell_config.frame_duplex_type.value = FDD;
cfg->cell_config.frame_duplex_type.value = FDD;
ru->att_tx = config->att_tx[0];
ru->att_rx = config->att_rx[0];
int mu = gNB_config->ssb_config.scs_common.value;
gNB_config->carrier_config.dl_grid_size[mu].value = config->N_RB_DL[0];
gNB_config->carrier_config.dl_grid_size[mu].value = config->N_RB_UL[0];
int mu = cfg->ssb_config.scs_common.value;
cfg->carrier_config.dl_grid_size[mu].value = config->N_RB_DL[0];
cfg->carrier_config.dl_grid_size[mu].value = config->N_RB_UL[0];
ru->nr_frame_parms->threequarter_fs = config->threequarter_fs[0];
//ru->nr_frame_parms->pdsch_config_common.referenceSignalPower = ru->max_pdschReferenceSignalPower-config->att_tx[0];
@@ -1977,7 +2021,7 @@ void configure_rru(int idx,
}
fill_rf_config(ru,ru->rf_config_file);
nr_init_frame_parms(&ru->gNB_list[0]->gNB_config, ru->nr_frame_parms);
nr_init_frame_parms(&ru->config, ru->nr_frame_parms);
nr_phy_init_RU(ru);
}