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Improve Precoding Matrix computation taking in consideration the DCI format

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luis_pereira87
2024-01-26 10:04:45 +00:00
parent da5ce90dcf
commit 263104388c
3 changed files with 7 additions and 5 deletions
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openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
+2 -1
View File
@@ -668,7 +668,8 @@ static void pf_dl(module_id_t module_id,
else
sched_pdsch->mcs = get_mcs_from_bler(bo, stats, &sched_ctrl->dl_bler_stats, max_mcs, frame);
sched_pdsch->nrOfLayers = get_dl_nrOfLayers(sched_ctrl, current_BWP->dci_format);
sched_pdsch->pm_index = mac->identity_pm ? 0 : get_pm_index(mac, UE, sched_pdsch->nrOfLayers, mac->radio_config.pdsch_AntennaPorts.XP);
sched_pdsch->pm_index =
get_pm_index(mac, UE, current_BWP->dci_format, sched_pdsch->nrOfLayers, mac->radio_config.pdsch_AntennaPorts.XP);
const uint8_t Qm = nr_get_Qm_dl(sched_pdsch->mcs, current_BWP->mcsTableIdx);
const uint16_t R = nr_get_code_rate_dl(sched_pdsch->mcs, current_BWP->mcsTableIdx);
uint32_t tbs = nr_compute_tbs(Qm,
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
+4 -4
View File
@@ -131,19 +131,19 @@ uint8_t get_dl_nrOfLayers(const NR_UE_sched_ctrl_t *sched_ctrl,
uint16_t get_pm_index(const gNB_MAC_INST *nrmac,
const NR_UE_info_t *UE,
nr_dci_format_t dci_format,
int layers,
int xp_pdsch_antenna_ports)
{
if (dci_format == NR_DL_DCI_FORMAT_1_0 || nrmac->identity_pm || xp_pdsch_antenna_ports == 1)
return 0; //identity matrix (basic 5G configuration handled by PMI report is with XP antennas)
const NR_UE_sched_ctrl_t *sched_ctrl = &UE->UE_sched_ctrl;
const int report_id = sched_ctrl->CSI_report.cri_ri_li_pmi_cqi_report.csi_report_id;
const nr_csi_report_t *csi_report = &UE->csi_report_template[report_id];
const int N1 = csi_report->N1;
const int N2 = csi_report->N2;
const int antenna_ports = (N1 * N2) << 1;
if (xp_pdsch_antenna_ports == 1)
return 0; //identity matrix (basic 5G configuration handled by PMI report is with XP antennas)
const int x1 = sched_ctrl->CSI_report.cri_ri_li_pmi_cqi_report.pmi_x1;
const int x2 = sched_ctrl->CSI_report.cri_ri_li_pmi_cqi_report.pmi_x2;
LOG_D(NR_MAC,"PMI report: x1 %d x2 %d layers: %d\n", x1, x2, layers);
openair2/LAYER2/NR_MAC_gNB/mac_proto.h
+1
View File
@@ -379,6 +379,7 @@ NR_pdsch_dmrs_t get_dl_dmrs_params(const NR_ServingCellConfigCommon_t *scc,
uint16_t get_pm_index(const gNB_MAC_INST *nrmac,
const NR_UE_info_t *UE,
nr_dci_format_t dci_format,
int layers,
int xp_pdsch_antenna_ports);