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SL PSBCH: MAC->PHY cfg, PSBCH scheduler + supporting functions + enable system testing & scope

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- Phy config update and Sidelink frame parameters initialisation
	- PSBCH scheduler to trigger TX PSBCH/RX PSBCH actions
	- Sidelink indication with rx ind to trigger send SL-MIB to MAC
	- Enable Scope for PSBCH use -d or --dqt
	- Enable system testing of PSBCH for example using RFSIMULATOR:

		- UE1 is a SYNCRONISATION SOURCE UE which transmits PSBCH

		  started using command -
		  sudo ./nr-uesoftmodem --sl-mode 2 --sync-ref 4 --rfsim --rfsimulator.serveraddr server

		- UE2 syncs onto UE1 during sidelink search, gets the timing and continues to receive PSBCH

		  started using command -
		  sudo ./nr-uesoftmodem --sl-mode 2 --rfsim --rfsimulator.serveraddr 127.0.0.1

		- In the default use case 2 Sidelink SSBs sent over 16 frames.

		- In case SL-SSB configuration needs to be changed use -O option in the above command like

		-O ../../../targets/PROJECTS/NR-SIDELINK/CONF/sidelink_preconfig_1txpool.conf
This commit is contained in:
Raghavendra Dinavahi
2024-06-21 09:40:16 +02:00
parent 9fab212441
commit 798ceeeef2
42 changed files with 1409 additions and 318 deletions
Download Patch File Download Diff File Expand all files Collapse all files
executables/nr-uesoftmodem.c
+32 -12
View File
@@ -315,13 +315,17 @@ void set_options(int CC_id, PHY_VARS_NR_UE *UE){
}
void init_openair0(void) {
void init_openair0()
{
int card;
int freq_off = 0;
NR_DL_FRAME_PARMS *frame_parms = &PHY_vars_UE_g[0][0]->frame_parms;
bool is_sidelink = (get_softmodem_params()->sl_mode) ? true : false;
if (is_sidelink)
frame_parms = &PHY_vars_UE_g[0][0]->SL_UE_PHY_PARAMS.sl_frame_params;
for (card=0; card<MAX_CARDS; card++) {
uint64_t dl_carrier, ul_carrier, sl_carrier;
uint64_t dl_carrier, ul_carrier;
openair0_cfg[card].configFilename = NULL;
openair0_cfg[card].threequarter_fs = frame_parms->threequarter_fs;
openair0_cfg[card].sample_rate = frame_parms->samples_per_subframe * 1e3;
@@ -347,15 +351,14 @@ void init_openair0(void) {
openair0_cfg[card].rx_num_channels,
duplex_mode[openair0_cfg[card].duplex_mode]);
nr_get_carrier_frequencies(PHY_vars_UE_g[0][0], &dl_carrier, &ul_carrier);
if (is_sidelink) {
dl_carrier = frame_parms->dl_CarrierFreq;
ul_carrier = frame_parms->ul_CarrierFreq;
} else
nr_get_carrier_frequencies(PHY_vars_UE_g[0][0], &dl_carrier, &ul_carrier);
nr_rf_card_config_freq(&openair0_cfg[card], ul_carrier, dl_carrier, freq_off);
if (get_softmodem_params()->sl_mode == 2) {
nr_get_carrier_frequencies_sl(PHY_vars_UE_g[0][0], &sl_carrier);
nr_rf_card_config_freq(&openair0_cfg[card], sl_carrier, sl_carrier, freq_off);
}
nr_rf_card_config_gain(&openair0_cfg[card], rx_gain_off);
openair0_cfg[card].configFilename = get_softmodem_params()->rf_config_file;
@@ -511,7 +514,7 @@ int main(int argc, char **argv)
ue_id_g = (node_number == 0) ? 0 : node_number - 2;
AssertFatal(ue_id_g >= 0, "UE id is expected to be nonnegative.\n");
if(node_number == 0)
if (node_number == 0)
init_pdcp(0);
else
init_pdcp(mode_offset + ue_id_g);
@@ -540,7 +543,8 @@ int main(int argc, char **argv)
set_options(CC_id, UE[CC_id]);
NR_UE_MAC_INST_t *mac = get_mac_inst(0);
if (get_softmodem_params()->sa) { // set frame config to initial values from command line and assume that the SSB is centered on the grid
if (get_softmodem_params()->sa || get_softmodem_params()->sl_mode) { // set frame config to initial values from command line
// and assume that the SSB is centered on the grid
uint16_t nr_band = get_softmodem_params()->band;
mac->nr_band = nr_band;
mac->ssb_start_subcarrier = UE[CC_id]->frame_parms.ssb_start_subcarrier;
@@ -549,8 +553,7 @@ int main(int argc, char **argv)
uplink_frequency_offset[CC_id][0],
get_softmodem_params()->numerology,
nr_band);
}
else{
} else {
DevAssert(mac->if_module != NULL && mac->if_module->phy_config_request != NULL);
mac->if_module->phy_config_request(&mac->phy_config);
mac->phy_config_request_sent = true;
@@ -559,7 +562,24 @@ int main(int argc, char **argv)
nr_init_frame_parms_ue(&UE[CC_id]->frame_parms, nrUE_config, mac->nr_band);
}
UE[CC_id]->sl_mode = get_softmodem_params()->sl_mode;
init_nr_ue_vars(UE[CC_id], 0, abstraction_flag);
if (UE[CC_id]->sl_mode) {
AssertFatal(UE[CC_id]->sl_mode == 2, "Only Sidelink mode 2 supported. Mode 1 not yet supported\n");
DevAssert(mac->if_module != NULL && mac->if_module->sl_phy_config_request != NULL);
nr_sl_phy_config_t *phycfg = &mac->SL_MAC_PARAMS->sl_phy_config;
phycfg->sl_config_req.sl_carrier_config.sl_num_rx_ant = get_nrUE_params()->nb_antennas_rx;
phycfg->sl_config_req.sl_carrier_config.sl_num_tx_ant = get_nrUE_params()->nb_antennas_tx;
mac->if_module->sl_phy_config_request(phycfg);
mac->phy_config_request_sent = true;
sl_nr_ue_phy_params_t *sl_phy = &UE[CC_id]->SL_UE_PHY_PARAMS;
nr_init_frame_parms_ue_sl(&sl_phy->sl_frame_params,
&sl_phy->sl_config,
get_softmodem_params()->threequarter_fs,
get_nrUE_params()->ofdm_offset_divisor);
sl_ue_phy_init(UE[CC_id]);
}
}
init_openair0();