From 82c4380a4e6af719d18a9bde1e71a7d00a2c2ab2 Mon Sep 17 00:00:00 2001
From: Francesco Mani <francesco.mani@eurecom.fr>
Date: Fri, 20 Nov 2020 10:22:10 +0100
Subject: [PATCH] uci mac functions in a new file
---
cmake_targets/CMakeLists.txt | 1 +
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c | 55 --
.../LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c | 94 ---
.../NR_MAC_gNB/gNB_scheduler_primitives.c | 396 ------------
.../LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c | 581 ++++++++++++++++++
openair2/LAYER2/NR_MAC_gNB/mac_proto.h | 3 +
6 files changed, 585 insertions(+), 545 deletions(-)
create mode 100644 openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c
diff --git a/cmake_targets/CMakeLists.txt b/cmake_targets/CMakeLists.txt
index 900d4c8324..de9915a68b 100644
--- a/cmake_targets/CMakeLists.txt
+++ b/cmake_targets/CMakeLists.txt
@@ -2031,6 +2031,7 @@ set (MAC_NR_SRC
${NR_GNB_MAC_DIR}/gNB_scheduler_ulsch.c
${NR_GNB_MAC_DIR}/gNB_scheduler_primitives.c
${NR_GNB_MAC_DIR}/gNB_scheduler_phytest.c
+ ${NR_GNB_MAC_DIR}/gNB_scheduler_uci.c
${NR_GNB_MAC_DIR}/gNB_scheduler_RA.c
)
diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
index 5d701bf5b8..e4c2e11d7d 100644
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
@@ -337,61 +337,6 @@ void nr_schedule_pusch(int Mod_idP,
}
}
-
-void nr_schedule_pucch(int Mod_idP,
- int UE_id,
- int nr_ulmix_slots,
- frame_t frameP,
- sub_frame_t slotP) {
-
- uint16_t O_csi, O_ack, O_uci;
- uint8_t O_sr = 0; // no SR in PUCCH implemented for now
- NR_ServingCellConfigCommon_t *scc = RC.nrmac[Mod_idP]->common_channels->ServingCellConfigCommon;
- NR_UE_info_t *UE_info = &RC.nrmac[Mod_idP]->UE_info;
- AssertFatal(UE_info->active[UE_id],"Cannot find UE_id %d is not active\n",UE_id);
-
- NR_CellGroupConfig_t *secondaryCellGroup = UE_info->secondaryCellGroup[UE_id];
- int bwp_id=1;
- NR_BWP_Uplink_t *ubwp=secondaryCellGroup->spCellConfig->spCellConfigDedicated->uplinkConfig->uplinkBWP_ToAddModList->list.array[bwp_id-1];
- nfapi_nr_ul_tti_request_t *UL_tti_req = &RC.nrmac[Mod_idP]->UL_tti_req[0];
-
- NR_sched_pucch *curr_pucch;
-
- for (int k=0; k<nr_ulmix_slots; k++) {
- for (int l=0; l<2; l++) {
- curr_pucch = &UE_info->UE_sched_ctrl[UE_id].sched_pucch[k][l];
- O_ack = curr_pucch->dai_c;
- O_csi = curr_pucch->csi_bits;
- O_uci = O_ack + O_csi + O_sr;
- if ((O_uci>0) && (frameP == curr_pucch->frame) && (slotP == curr_pucch->ul_slot)) {
- UL_tti_req->SFN = curr_pucch->frame;
- UL_tti_req->Slot = curr_pucch->ul_slot;
- UL_tti_req->pdus_list[UL_tti_req->n_pdus].pdu_type = NFAPI_NR_UL_CONFIG_PUCCH_PDU_TYPE;
- UL_tti_req->pdus_list[UL_tti_req->n_pdus].pdu_size = sizeof(nfapi_nr_pucch_pdu_t);
- nfapi_nr_pucch_pdu_t *pucch_pdu = &UL_tti_req->pdus_list[UL_tti_req->n_pdus].pucch_pdu;
- memset(pucch_pdu,0,sizeof(nfapi_nr_pucch_pdu_t));
- UL_tti_req->n_pdus+=1;
-
- LOG_D(MAC,"Scheduling pucch reception for frame %d slot %d with (%d, %d, %d) (SR ACK, CSI) bits\n",
- frameP,slotP,O_sr,O_ack,curr_pucch->csi_bits);
-
- nr_configure_pucch(pucch_pdu,
- scc,
- ubwp,
- UE_info->rnti[UE_id],
- curr_pucch->resource_indicator,
- O_csi,
- O_ack,
- O_sr);
-
- memset((void *) &UE_info->UE_sched_ctrl[UE_id].sched_pucch[k][l],
- 0,
- sizeof(NR_sched_pucch));
- }
- }
- }
-}
-
bool is_xlsch_in_slot(uint64_t bitmap, sub_frame_t slot) {
return (bitmap >> slot) & 0x01;
}
diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
index 7a7fe1288c..2902617c23 100644
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
@@ -343,100 +343,6 @@ int nr_generate_dlsch_pdu(module_id_t module_idP,
return offset;
}
-void nr_rx_acknack(nfapi_nr_uci_pusch_pdu_t *uci_pusch,
- nfapi_nr_uci_pucch_pdu_format_0_1_t *uci_01,
- nfapi_nr_uci_pucch_pdu_format_2_3_4_t *uci_234,
- NR_UL_IND_t *UL_info, NR_UE_sched_ctrl_t *sched_ctrl, NR_mac_stats_t *stats) {
-
- // TODO
- int max_harq_rounds = 4; // TODO define macro
-
- if (uci_01 != NULL) {
- // handle harq
- int harq_idx_s = 0;
-
- // iterate over received harq bits
- for (int harq_bit = 0; harq_bit < uci_01->harq->num_harq; harq_bit++) {
- // search for the right harq process
- for (int harq_idx = harq_idx_s; harq_idx < NR_MAX_NB_HARQ_PROCESSES; harq_idx++) {
- // if the gNB received ack with a good confidence
- if ((UL_info->slot-1) == sched_ctrl->harq_processes[harq_idx].feedback_slot) {
- if ((uci_01->harq->harq_list[harq_bit].harq_value == 1) &&
- (uci_01->harq->harq_confidence_level == 0)) {
- // toggle NDI and reset round
- sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
- sched_ctrl->harq_processes[harq_idx].round = 0;
- }
- else
- sched_ctrl->harq_processes[harq_idx].round++;
- sched_ctrl->harq_processes[harq_idx].is_waiting = 0;
- harq_idx_s = harq_idx + 1;
- // if the max harq rounds was reached
- if (sched_ctrl->harq_processes[harq_idx].round == max_harq_rounds) {
- sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
- sched_ctrl->harq_processes[harq_idx].round = 0;
- stats->dlsch_errors++;
- }
- break;
- }
- // if feedback slot processing is aborted
- else if (((UL_info->slot-1) > sched_ctrl->harq_processes[harq_idx].feedback_slot) &&
- (sched_ctrl->harq_processes[harq_idx].is_waiting)) {
- sched_ctrl->harq_processes[harq_idx].round++;
- if (sched_ctrl->harq_processes[harq_idx].round == max_harq_rounds) {
- sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
- sched_ctrl->harq_processes[harq_idx].round = 0;
- }
- sched_ctrl->harq_processes[harq_idx].is_waiting = 0;
- }
- }
- }
- }
-
-
- if (uci_234 != NULL) {
- int harq_idx_s = 0;
- int acknack;
-
- // iterate over received harq bits
- for (int harq_bit = 0; harq_bit < uci_234->harq.harq_bit_len; harq_bit++) {
- acknack = ((uci_234->harq.harq_payload[harq_bit>>3])>>harq_bit)&0x01;
- for (int harq_idx = harq_idx_s; harq_idx < NR_MAX_NB_HARQ_PROCESSES-1; harq_idx++) {
- // if the gNB received ack with a good confidence or if the max harq rounds was reached
- if ((UL_info->slot-1) == sched_ctrl->harq_processes[harq_idx].feedback_slot) {
- // TODO add some confidence level for when there is no CRC
- if ((uci_234->harq.harq_crc != 1) && acknack) {
- // toggle NDI and reset round
- sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
- sched_ctrl->harq_processes[harq_idx].round = 0;
- }
- else
- sched_ctrl->harq_processes[harq_idx].round++;
- sched_ctrl->harq_processes[harq_idx].is_waiting = 0;
- harq_idx_s = harq_idx + 1;
- // if the max harq rounds was reached
- if (sched_ctrl->harq_processes[harq_idx].round == max_harq_rounds) {
- sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
- sched_ctrl->harq_processes[harq_idx].round = 0;
- stats->dlsch_errors++;
- }
- break;
- }
- // if feedback slot processing is aborted
- else if (((UL_info->slot-1) > sched_ctrl->harq_processes[harq_idx].feedback_slot) &&
- (sched_ctrl->harq_processes[harq_idx].is_waiting)) {
- sched_ctrl->harq_processes[harq_idx].round++;
- if (sched_ctrl->harq_processes[harq_idx].round == max_harq_rounds) {
- sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
- sched_ctrl->harq_processes[harq_idx].round = 0;
- }
- sched_ctrl->harq_processes[harq_idx].is_waiting = 0;
- }
- }
- }
- }
-}
-
int getNrOfSymbols(NR_BWP_Downlink_t *bwp, int tda) {
struct NR_PDSCH_TimeDomainResourceAllocationList *tdaList =
bwp->bwp_Common->pdsch_ConfigCommon->choice.setup->pdsch_TimeDomainAllocationList;
diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
index c6d9a86fce..11d9e9d897 100644
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
@@ -915,84 +915,6 @@ void nr_configure_pucch(nfapi_nr_pucch_pdu_t* pucch_pdu,
}
-uint16_t compute_pucch_prb_size(uint8_t format,
- uint8_t nr_prbs,
- uint16_t O_tot,
- uint16_t O_csi,
- NR_PUCCH_MaxCodeRate_t *maxCodeRate,
- uint8_t Qm,
- uint8_t n_symb,
- uint8_t n_re_ctrl) {
-
- uint16_t O_crc;
-
- if (O_tot<12)
- O_crc = 0;
- else{
- if (O_tot<20)
- O_crc = 6;
- else {
- if (O_tot<360)
- O_crc = 11;
- else
- AssertFatal(1==0,"Case for segmented PUCCH not yet implemented");
- }
- }
-
- int rtimes100;
- switch(*maxCodeRate){
- case NR_PUCCH_MaxCodeRate_zeroDot08 :
- rtimes100 = 8;
- break;
- case NR_PUCCH_MaxCodeRate_zeroDot15 :
- rtimes100 = 15;
- break;
- case NR_PUCCH_MaxCodeRate_zeroDot25 :
- rtimes100 = 25;
- break;
- case NR_PUCCH_MaxCodeRate_zeroDot35 :
- rtimes100 = 35;
- break;
- case NR_PUCCH_MaxCodeRate_zeroDot45 :
- rtimes100 = 45;
- break;
- case NR_PUCCH_MaxCodeRate_zeroDot60 :
- rtimes100 = 60;
- break;
- case NR_PUCCH_MaxCodeRate_zeroDot80 :
- rtimes100 = 80;
- break;
- default :
- AssertFatal(1==0,"Invalid MaxCodeRate");
- }
-
- float r = (float)rtimes100/100;
-
- if (O_csi == O_tot) {
- if ((O_tot+O_csi)>(nr_prbs*n_re_ctrl*n_symb*Qm*r))
- AssertFatal(1==0,"MaxCodeRate %.2f can't support %d UCI bits and %d CRC bits with %d PRBs",
- r,O_tot,O_crc,nr_prbs);
- else
- return nr_prbs;
- }
-
- if (format==2){
- // TODO fix this for multiple CSI reports
- for (int i=1; i<=nr_prbs; i++){
- if((O_tot+O_crc)<=(i*n_symb*Qm*n_re_ctrl*r) &&
- (O_tot+O_crc)>((i-1)*n_symb*Qm*n_re_ctrl*r))
- return i;
- }
- AssertFatal(1==0,"MaxCodeRate %.2f can't support %d UCI bits and %d CRC bits with at most %d PRBs",
- r,O_tot,O_crc,nr_prbs);
- }
- else{
- AssertFatal(1==0,"Not yet implemented");
- }
-
-}
-
-
void prepare_dci(NR_CellGroupConfig_t *secondaryCellGroup,
dci_pdu_rel15_t *dci_pdu_rel15,
nr_dci_format_t format,
@@ -1917,324 +1839,6 @@ void get_pdsch_to_harq_feedback(int Mod_idP,
}
-uint16_t nr_get_csi_bitlen(int Mod_idP,
- int UE_id,
- uint8_t csi_report_id) {
-
- uint16_t csi_bitlen =0;
- NR_UE_info_t *UE_info = &RC.nrmac[Mod_idP]->UE_info;
- CRI_SSBRI_RSRP_bitlen_t * CSI_report_bitlen = NULL;
-
- CSI_report_bitlen = &(UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0]);
- csi_bitlen = ((CSI_report_bitlen->cri_ssbri_bitlen * CSI_report_bitlen->nb_ssbri_cri) +
- CSI_report_bitlen->rsrp_bitlen +(CSI_report_bitlen->diff_rsrp_bitlen *
- (CSI_report_bitlen->nb_ssbri_cri -1 )) *UE_info->csi_report_template[UE_id][csi_report_id].nb_of_csi_ssb_report);
-
- return csi_bitlen;
-}
-
-
-void csi_period_offset(NR_CSI_ReportConfig_t *csirep,
- int *period, int *offset) {
-
- NR_CSI_ReportPeriodicityAndOffset_PR p_and_o = csirep->reportConfigType.choice.periodic->reportSlotConfig.present;
-
- switch(p_and_o){
- case NR_CSI_ReportPeriodicityAndOffset_PR_slots4:
- *period = 4;
- *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots4;
- break;
- case NR_CSI_ReportPeriodicityAndOffset_PR_slots5:
- *period = 5;
- *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots5;
- break;
- case NR_CSI_ReportPeriodicityAndOffset_PR_slots8:
- *period = 8;
- *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots8;
- break;
- case NR_CSI_ReportPeriodicityAndOffset_PR_slots10:
- *period = 10;
- *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots10;
- break;
- case NR_CSI_ReportPeriodicityAndOffset_PR_slots16:
- *period = 16;
- *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots16;
- break;
- case NR_CSI_ReportPeriodicityAndOffset_PR_slots20:
- *period = 20;
- *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots20;
- break;
- case NR_CSI_ReportPeriodicityAndOffset_PR_slots40:
- *period = 40;
- *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots40;
- break;
- case NR_CSI_ReportPeriodicityAndOffset_PR_slots80:
- *period = 80;
- *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots80;
- break;
- case NR_CSI_ReportPeriodicityAndOffset_PR_slots160:
- *period = 160;
- *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots160;
- break;
- case NR_CSI_ReportPeriodicityAndOffset_PR_slots320:
- *period = 320;
- *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots320;
- break;
- default:
- AssertFatal(1==0,"No periodicity and offset resource found in CSI report");
- }
-}
-
-
-//!TODO : same function can be written to handle csi_resources
-void compute_csi_bitlen (NR_CellGroupConfig_t *secondaryCellGroup, NR_UE_info_t *UE_info, int UE_id) {
- uint8_t csi_report_id = 0;
- uint8_t csi_resourceidx =0;
- uint8_t csi_ssb_idx =0;
-
- NR_CSI_MeasConfig_t *csi_MeasConfig = secondaryCellGroup->spCellConfig->spCellConfigDedicated->csi_MeasConfig->choice.setup;
- NR_CSI_ResourceConfigId_t csi_ResourceConfigId;
- for (csi_report_id=0; csi_report_id < csi_MeasConfig->csi_ReportConfigToAddModList->list.count; csi_report_id++){
- csi_ResourceConfigId=csi_MeasConfig->csi_ReportConfigToAddModList->list.array[csi_report_id]->resourcesForChannelMeasurement;
- UE_info->csi_report_template[UE_id][csi_report_id].reportQuantity_type = csi_MeasConfig->csi_ReportConfigToAddModList->list.array[csi_report_id]->reportQuantity.present;
-
- for ( csi_resourceidx = 0; csi_resourceidx < csi_MeasConfig->csi_ResourceConfigToAddModList->list.count; csi_resourceidx++) {
- if ( csi_MeasConfig->csi_ResourceConfigToAddModList->list.array[csi_resourceidx]->csi_ResourceConfigId != csi_ResourceConfigId)
- continue;
- else {
- //Finding the CSI_RS or SSB Resources
- UE_info->csi_report_template[UE_id][csi_report_id].CSI_Resource_type= csi_MeasConfig->csi_ResourceConfigToAddModList->list.array[csi_resourceidx]->csi_RS_ResourceSetList.present;
- if (NR_CSI_ResourceConfig__csi_RS_ResourceSetList_PR_nzp_CSI_RS_SSB ==UE_info->csi_report_template[UE_id][csi_report_id].CSI_Resource_type){
- struct NR_CSI_ResourceConfig__csi_RS_ResourceSetList__nzp_CSI_RS_SSB * nzp_CSI_RS_SSB = csi_MeasConfig->csi_ResourceConfigToAddModList->list.array[csi_resourceidx]->csi_RS_ResourceSetList.choice.nzp_CSI_RS_SSB;
-
- UE_info->csi_report_template[UE_id][csi_report_id].nb_of_nzp_csi_report = nzp_CSI_RS_SSB->nzp_CSI_RS_ResourceSetList!=NULL ? nzp_CSI_RS_SSB->nzp_CSI_RS_ResourceSetList->list.count:0;
- UE_info->csi_report_template[UE_id][csi_report_id].nb_of_csi_ssb_report = nzp_CSI_RS_SSB->csi_SSB_ResourceSetList!=NULL ? nzp_CSI_RS_SSB->csi_SSB_ResourceSetList->list.count:0;
- }
-
- if (0 != UE_info->csi_report_template[UE_id][csi_report_id].nb_of_csi_ssb_report){
- uint8_t nb_ssb_resources =0;
- for ( csi_ssb_idx = 0; csi_ssb_idx < csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.count; csi_ssb_idx++) {
- if (csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.array[csi_ssb_idx]->csi_SSB_ResourceSetId ==
- *(csi_MeasConfig->csi_ResourceConfigToAddModList->list.array[csi_resourceidx]->csi_RS_ResourceSetList.choice.nzp_CSI_RS_SSB->csi_SSB_ResourceSetList->list.array[0])) { ///We can configure only one SSB resource set from spec 38.331 IE CSI-ResourceConfig
- if (NR_CSI_ReportConfig__groupBasedBeamReporting_PR_disabled ==
- csi_MeasConfig->csi_ReportConfigToAddModList->list.array[csi_report_id]->groupBasedBeamReporting.present ) {
- if (NULL != csi_MeasConfig->csi_ReportConfigToAddModList->list.array[csi_report_id]->groupBasedBeamReporting.choice.disabled->nrofReportedRS)
- UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].nb_ssbri_cri = *(csi_MeasConfig->csi_ReportConfigToAddModList->list.array[csi_report_id]->groupBasedBeamReporting.choice.disabled->nrofReportedRS)+1;
- else
- /*! From Spec 38.331
- * nrofReportedRS
- * The number (N) of measured RS resources to be reported per report setting in a non-group-based report. N <= N_max, where N_max is either 2 or 4 depending on UE
- * capability. FFS: The signaling mechanism for the gNB to select a subset of N beams for the UE to measure and report.
- * When the field is absent the UE applies the value 1
- */
- UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].nb_ssbri_cri= 1;
- }else
- UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].nb_ssbri_cri= 2;
-
- nb_ssb_resources= csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.array[csi_ssb_idx]->csi_SSB_ResourceList.list.count;
- if (nb_ssb_resources){
- UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].cri_ssbri_bitlen =ceil(log2 (nb_ssb_resources));
- UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].rsrp_bitlen = 7; //From spec 38.212 Table 6.3.1.1.2-6: CRI, SSBRI, and RSRP
- UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].diff_rsrp_bitlen =4; //From spec 38.212 Table 6.3.1.1.2-6: CRI, SSBRI, and RSRP
- }
- else{
- UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].cri_ssbri_bitlen =0;
- UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].rsrp_bitlen = 0;
- UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].diff_rsrp_bitlen =0;
- }
-
- LOG_I (MAC, "UCI: CSI_bit len : ssbri %d, rsrp: %d, diff_rsrp: %d",
- UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].cri_ssbri_bitlen,
- UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].rsrp_bitlen,
- UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].diff_rsrp_bitlen);
- break ;
- }
- }
- }
- if (0 != UE_info->csi_report_template[UE_id][csi_report_id].nb_of_nzp_csi_report){
- AssertFatal(1==0,"Currently configuring only SSB beamreporting.");
- }
- break;
- }
- }
- }
-}
-
-void nr_csi_meas_reporting(int Mod_idP,
- int UE_id,
- frame_t frame,
- sub_frame_t slot,
- int slots_per_tdd,
- int ul_slots,
- int n_slots_frame) {
-
- NR_UE_info_t *UE_info = &RC.nrmac[Mod_idP]->UE_info;
- NR_sched_pucch *curr_pucch;
- NR_PUCCH_ResourceSet_t *pucchresset;
- NR_CSI_ReportConfig_t *csirep;
- NR_CellGroupConfig_t *secondaryCellGroup = UE_info->secondaryCellGroup[UE_id];
- NR_CSI_MeasConfig_t *csi_measconfig = secondaryCellGroup->spCellConfig->spCellConfigDedicated->csi_MeasConfig->choice.setup;
- NR_BWP_Uplink_t *ubwp=secondaryCellGroup->spCellConfig->spCellConfigDedicated->uplinkConfig->uplinkBWP_ToAddModList->list.array[0];
- NR_PUCCH_Config_t *pucch_Config = ubwp->bwp_Dedicated->pucch_Config->choice.setup;
-
- AssertFatal(csi_measconfig->csi_ReportConfigToAddModList->list.count>0,"NO CSI report configuration available");
-
- for (int csi_report_id = 0; csi_report_id < csi_measconfig->csi_ReportConfigToAddModList->list.count; csi_report_id++){
-
- csirep = csi_measconfig->csi_ReportConfigToAddModList->list.array[csi_report_id];
-
- AssertFatal(csirep->reportConfigType.choice.periodic!=NULL,"Only periodic CSI reporting is implemented currently");
- int period, offset, sched_slot;
- csi_period_offset(csirep,&period,&offset);
- sched_slot = (period+offset)%n_slots_frame;
- // prepare to schedule csi measurement reception according to 5.2.1.4 in 38.214
- // preparation is done in first slot of tdd period
- if ( (frame%(period/n_slots_frame)==(offset/n_slots_frame)) && (slot==((sched_slot/slots_per_tdd)*slots_per_tdd))) {
-
- // we are scheduling pucch for csi in the first pucch occasion (this comes before ack/nack)
- curr_pucch = &UE_info->UE_sched_ctrl[UE_id].sched_pucch[sched_slot-slots_per_tdd+ul_slots][0];
-
- NR_PUCCH_CSI_Resource_t *pucchcsires = csirep->reportConfigType.choice.periodic->pucch_CSI_ResourceList.list.array[0];
-
- int found = -1;
- pucchresset = pucch_Config->resourceSetToAddModList->list.array[1]; // set with formats >1
- int n_list = pucchresset->resourceList.list.count;
- for (int i=0; i<n_list; i++) {
- if (*pucchresset->resourceList.list.array[i] == pucchcsires->pucch_Resource)
- found = i;
- }
- AssertFatal(found>-1,"CSI resource not found among PUCCH resources");
-
- curr_pucch->resource_indicator = found;
-
- n_list = pucch_Config->resourceToAddModList->list.count;
-
- // going through the list of PUCCH resources to find the one indexed by resource_id
- for (int i=0; i<n_list; i++) {
- NR_PUCCH_Resource_t *pucchres = pucch_Config->resourceToAddModList->list.array[i];
- if (pucchres->pucch_ResourceId == *pucchresset->resourceList.list.array[found]) {
- switch(pucchres->format.present){
- case NR_PUCCH_Resource__format_PR_format2:
- if (pucch_Config->format2->choice.setup->simultaneousHARQ_ACK_CSI == NULL)
- curr_pucch->simultaneous_harqcsi = false;
- else
- curr_pucch->simultaneous_harqcsi = true;
- break;
- case NR_PUCCH_Resource__format_PR_format3:
- if (pucch_Config->format3->choice.setup->simultaneousHARQ_ACK_CSI == NULL)
- curr_pucch->simultaneous_harqcsi = false;
- else
- curr_pucch->simultaneous_harqcsi = true;
- break;
- case NR_PUCCH_Resource__format_PR_format4:
- if (pucch_Config->format4->choice.setup->simultaneousHARQ_ACK_CSI == NULL)
- curr_pucch->simultaneous_harqcsi = false;
- else
- curr_pucch->simultaneous_harqcsi = true;
- break;
- default:
- AssertFatal(1==0,"Invalid PUCCH format type");
- }
- }
- }
- curr_pucch->csi_bits += nr_get_csi_bitlen(Mod_idP,UE_id,csi_report_id); // TODO function to compute CSI meas report bit size
- curr_pucch->frame = frame;
- curr_pucch->ul_slot = sched_slot;
- }
- }
-}
-
-
-// function to update pucch scheduling parameters in UE list when a USS DL is scheduled
-void nr_acknack_scheduling(int Mod_idP,
- int UE_id,
- frame_t frameP,
- sub_frame_t slotP,
- int slots_per_tdd,
- int *pucch_id,
- int *pucch_occ) {
-
- NR_ServingCellConfigCommon_t *scc = RC.nrmac[Mod_idP]->common_channels->ServingCellConfigCommon;
- NR_UE_info_t *UE_info = &RC.nrmac[Mod_idP]->UE_info;
- NR_sched_pucch *curr_pucch;
- int max_acknacks,pucch_res,first_ul_slot_tdd,k,i,l;
- uint8_t pdsch_to_harq_feedback[8];
- int found = 0;
- int nr_ulmix_slots = scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofUplinkSlots;
- if (scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofUplinkSymbols!=0)
- nr_ulmix_slots++;
-
- bool csi_pres=false;
- for (k=0; k<nr_ulmix_slots; k++) {
- if(UE_info->UE_sched_ctrl[UE_id].sched_pucch[k][0].csi_bits>0)
- csi_pres=true;
- }
-
- // As a preference always schedule ack nacks in PUCCH0 (max 2 per slots)
- // Unless there is CSI meas reporting scheduled in the period to avoid conflicts in the same slot
- if (csi_pres)
- max_acknacks=10;
- else
- max_acknacks=2;
-
- // this is hardcoded for now as ue specific
- NR_SearchSpace__searchSpaceType_PR ss_type = NR_SearchSpace__searchSpaceType_PR_ue_Specific;
- get_pdsch_to_harq_feedback(Mod_idP,UE_id,ss_type,pdsch_to_harq_feedback);
-
- // for each possible ul or mixed slot
- for (k=0; k<nr_ulmix_slots; k++) {
- for (l=0; l<1; l++) { // scheduling 2 PUCCH in a single slot does not work with the phone, currently
- curr_pucch = &UE_info->UE_sched_ctrl[UE_id].sched_pucch[k][l];
- //if it is possible to schedule acknack in current pucch (no exclusive csi pucch)
- if ((curr_pucch->csi_bits == 0) || (curr_pucch->simultaneous_harqcsi==true)) {
- // if there is free room in current pucch structure
- if (curr_pucch->dai_c<max_acknacks) {
- pucch_res = get_pucch_resource(UE_info,UE_id,k,l);
- if (pucch_res>-1){
- curr_pucch->resource_indicator = pucch_res;
- curr_pucch->frame = frameP;
- // first pucch occasion in first UL or MIXED slot
- first_ul_slot_tdd = scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofDownlinkSlots;
- i = 0;
- while (i<8 && found == 0) { // look if timing indicator is among allowed values
- if (pdsch_to_harq_feedback[i]==(first_ul_slot_tdd+k)-(slotP % slots_per_tdd))
- found = 1;
- if (found == 0) i++;
- }
- if (found == 1) {
- // computing slot in which pucch is scheduled
- curr_pucch->dai_c++;
- curr_pucch->ul_slot = first_ul_slot_tdd + k + (slotP - (slotP % slots_per_tdd));
- curr_pucch->timing_indicator = i; // index in the list of timing indicators
- *pucch_id = k;
- *pucch_occ = l;
- return;
- }
- }
- }
- }
- }
- }
- AssertFatal(1==0,"No Uplink slot available in accordance to allowed timing indicator\n");
-}
-
-
-int get_pucch_resource(NR_UE_info_t *UE_info,int UE_id,int k,int l) {
-
- // to be updated later, for now simple implementation
- // use the second allocation just in case there is csi in the first
- // in that case use second resource (for a different symbol) see 9.2 in 38.213
- if (l==1) {
- if (UE_info->UE_sched_ctrl[UE_id].sched_pucch[k][0].csi_bits==0)
- return -1;
- else
- return 1;
- }
- else
- return 0;
-
-}
-
void find_aggregation_candidates(uint8_t *aggregation_level,
uint8_t *nr_of_candidates,
NR_SearchSpace_t *ss) {
diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c
new file mode 100644
index 0000000000..4f298795b4
--- /dev/null
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c
@@ -0,0 +1,581 @@
+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.openairinterface.org/?page_id=698
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ * contact@openairinterface.org
+ */
+
+/*! \file gNB_scheduler_uci.c
+ * \brief MAC procedures related to UCI
+ * \date 2020
+ * \version 1.0
+ * \company Eurecom
+ */
+
+#include "LAYER2/MAC/mac.h"
+#include "NR_MAC_gNB/nr_mac_gNB.h"
+#include "NR_MAC_COMMON/nr_mac_extern.h"
+#include "NR_MAC_gNB/mac_proto.h"
+#include "common/ran_context.h"
+
+extern RAN_CONTEXT_t RC;
+
+void nr_schedule_pucch(int Mod_idP,
+ int UE_id,
+ int nr_ulmix_slots,
+ frame_t frameP,
+ sub_frame_t slotP) {
+
+ uint16_t O_csi, O_ack, O_uci;
+ uint8_t O_sr = 0; // no SR in PUCCH implemented for now
+ NR_ServingCellConfigCommon_t *scc = RC.nrmac[Mod_idP]->common_channels->ServingCellConfigCommon;
+ NR_UE_info_t *UE_info = &RC.nrmac[Mod_idP]->UE_info;
+ AssertFatal(UE_info->active[UE_id],"Cannot find UE_id %d is not active\n",UE_id);
+
+ NR_CellGroupConfig_t *secondaryCellGroup = UE_info->secondaryCellGroup[UE_id];
+ int bwp_id=1;
+ NR_BWP_Uplink_t *ubwp=secondaryCellGroup->spCellConfig->spCellConfigDedicated->uplinkConfig->uplinkBWP_ToAddModList->list.array[bwp_id-1];
+ nfapi_nr_ul_tti_request_t *UL_tti_req = &RC.nrmac[Mod_idP]->UL_tti_req[0];
+
+ NR_sched_pucch *curr_pucch;
+
+ for (int k=0; k<nr_ulmix_slots; k++) {
+ for (int l=0; l<2; l++) {
+ curr_pucch = &UE_info->UE_sched_ctrl[UE_id].sched_pucch[k][l];
+ O_ack = curr_pucch->dai_c;
+ O_csi = curr_pucch->csi_bits;
+ O_uci = O_ack + O_csi + O_sr;
+ if ((O_uci>0) && (frameP == curr_pucch->frame) && (slotP == curr_pucch->ul_slot)) {
+ UL_tti_req->SFN = curr_pucch->frame;
+ UL_tti_req->Slot = curr_pucch->ul_slot;
+ UL_tti_req->pdus_list[UL_tti_req->n_pdus].pdu_type = NFAPI_NR_UL_CONFIG_PUCCH_PDU_TYPE;
+ UL_tti_req->pdus_list[UL_tti_req->n_pdus].pdu_size = sizeof(nfapi_nr_pucch_pdu_t);
+ nfapi_nr_pucch_pdu_t *pucch_pdu = &UL_tti_req->pdus_list[UL_tti_req->n_pdus].pucch_pdu;
+ memset(pucch_pdu,0,sizeof(nfapi_nr_pucch_pdu_t));
+ UL_tti_req->n_pdus+=1;
+
+ LOG_D(MAC,"Scheduling pucch reception for frame %d slot %d with (%d, %d, %d) (SR ACK, CSI) bits\n",
+ frameP,slotP,O_sr,O_ack,curr_pucch->csi_bits);
+
+ nr_configure_pucch(pucch_pdu,
+ scc,
+ ubwp,
+ UE_info->rnti[UE_id],
+ curr_pucch->resource_indicator,
+ O_csi,
+ O_ack,
+ O_sr);
+
+ memset((void *) &UE_info->UE_sched_ctrl[UE_id].sched_pucch[k][l],
+ 0,
+ sizeof(NR_sched_pucch));
+ }
+ }
+ }
+}
+
+
+//!TODO : same function can be written to handle csi_resources
+void compute_csi_bitlen (NR_CellGroupConfig_t *secondaryCellGroup, NR_UE_info_t *UE_info, int UE_id) {
+ uint8_t csi_report_id = 0;
+ uint8_t csi_resourceidx =0;
+ uint8_t csi_ssb_idx =0;
+
+ NR_CSI_MeasConfig_t *csi_MeasConfig = secondaryCellGroup->spCellConfig->spCellConfigDedicated->csi_MeasConfig->choice.setup;
+ NR_CSI_ResourceConfigId_t csi_ResourceConfigId;
+ for (csi_report_id=0; csi_report_id < csi_MeasConfig->csi_ReportConfigToAddModList->list.count; csi_report_id++){
+ csi_ResourceConfigId=csi_MeasConfig->csi_ReportConfigToAddModList->list.array[csi_report_id]->resourcesForChannelMeasurement;
+ UE_info->csi_report_template[UE_id][csi_report_id].reportQuantity_type = csi_MeasConfig->csi_ReportConfigToAddModList->list.array[csi_report_id]->reportQuantity.present;
+
+ for ( csi_resourceidx = 0; csi_resourceidx < csi_MeasConfig->csi_ResourceConfigToAddModList->list.count; csi_resourceidx++) {
+ if ( csi_MeasConfig->csi_ResourceConfigToAddModList->list.array[csi_resourceidx]->csi_ResourceConfigId != csi_ResourceConfigId)
+ continue;
+ else {
+ //Finding the CSI_RS or SSB Resources
+ UE_info->csi_report_template[UE_id][csi_report_id].CSI_Resource_type= csi_MeasConfig->csi_ResourceConfigToAddModList->list.array[csi_resourceidx]->csi_RS_ResourceSetList.present;
+ if (NR_CSI_ResourceConfig__csi_RS_ResourceSetList_PR_nzp_CSI_RS_SSB ==UE_info->csi_report_template[UE_id][csi_report_id].CSI_Resource_type){
+ struct NR_CSI_ResourceConfig__csi_RS_ResourceSetList__nzp_CSI_RS_SSB * nzp_CSI_RS_SSB = csi_MeasConfig->csi_ResourceConfigToAddModList->list.array[csi_resourceidx]->csi_RS_ResourceSetList.choice.nzp_CSI_RS_SSB;
+
+ UE_info->csi_report_template[UE_id][csi_report_id].nb_of_nzp_csi_report = nzp_CSI_RS_SSB->nzp_CSI_RS_ResourceSetList!=NULL ? nzp_CSI_RS_SSB->nzp_CSI_RS_ResourceSetList->list.count:0;
+ UE_info->csi_report_template[UE_id][csi_report_id].nb_of_csi_ssb_report = nzp_CSI_RS_SSB->csi_SSB_ResourceSetList!=NULL ? nzp_CSI_RS_SSB->csi_SSB_ResourceSetList->list.count:0;
+ }
+
+ if (0 != UE_info->csi_report_template[UE_id][csi_report_id].nb_of_csi_ssb_report){
+ uint8_t nb_ssb_resources =0;
+ for ( csi_ssb_idx = 0; csi_ssb_idx < csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.count; csi_ssb_idx++) {
+ if (csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.array[csi_ssb_idx]->csi_SSB_ResourceSetId ==
+ *(csi_MeasConfig->csi_ResourceConfigToAddModList->list.array[csi_resourceidx]->csi_RS_ResourceSetList.choice.nzp_CSI_RS_SSB->csi_SSB_ResourceSetList->list.array[0])) {
+ ///We can configure only one SSB resource set from spec 38.331 IE CSI-ResourceConfig
+ if (NR_CSI_ReportConfig__groupBasedBeamReporting_PR_disabled ==
+ csi_MeasConfig->csi_ReportConfigToAddModList->list.array[csi_report_id]->groupBasedBeamReporting.present ) {
+ if (NULL != csi_MeasConfig->csi_ReportConfigToAddModList->list.array[csi_report_id]->groupBasedBeamReporting.choice.disabled->nrofReportedRS)
+ UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].nb_ssbri_cri = *(csi_MeasConfig->csi_ReportConfigToAddModList->list.array[csi_report_id]->groupBasedBeamReporting.choice.disabled->nrofReportedRS)+1;
+ else
+ /*! From Spec 38.331
+ * nrofReportedRS
+ * The number (N) of measured RS resources to be reported per report setting in a non-group-based report. N <= N_max, where N_max is either 2 or 4 depending on UE
+ * capability. FFS: The signaling mechanism for the gNB to select a subset of N beams for the UE to measure and report.
+ * When the field is absent the UE applies the value 1
+ */
+ UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].nb_ssbri_cri= 1;
+ } else
+ UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].nb_ssbri_cri= 2;
+
+ nb_ssb_resources= csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.array[csi_ssb_idx]->csi_SSB_ResourceList.list.count;
+ if (nb_ssb_resources){
+ UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].cri_ssbri_bitlen =ceil(log2 (nb_ssb_resources));
+ UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].rsrp_bitlen = 7; //From spec 38.212 Table 6.3.1.1.2-6: CRI, SSBRI, and RSRP
+ UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].diff_rsrp_bitlen =4; //From spec 38.212 Table 6.3.1.1.2-6: CRI, SSBRI, and RSRP
+ }
+ else{
+ UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].cri_ssbri_bitlen =0;
+ UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].rsrp_bitlen = 0;
+ UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].diff_rsrp_bitlen =0;
+ }
+
+ LOG_I (MAC, "UCI: CSI_bit len : ssbri %d, rsrp: %d, diff_rsrp: %d",
+ UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].cri_ssbri_bitlen,
+ UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].rsrp_bitlen,
+ UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0].diff_rsrp_bitlen);
+ break ;
+ }
+ }
+ }
+ if (0 != UE_info->csi_report_template[UE_id][csi_report_id].nb_of_nzp_csi_report)
+ AssertFatal(1==0,"Currently configuring only SSB beamreporting.");
+ break;
+ }
+ }
+ }
+}
+
+
+uint16_t nr_get_csi_bitlen(int Mod_idP,
+ int UE_id,
+ uint8_t csi_report_id) {
+
+ uint16_t csi_bitlen =0;
+ NR_UE_info_t *UE_info = &RC.nrmac[Mod_idP]->UE_info;
+ CRI_SSBRI_RSRP_bitlen_t * CSI_report_bitlen = NULL;
+
+ CSI_report_bitlen = &(UE_info->csi_report_template[UE_id][csi_report_id].CSI_report_bitlen[0]);
+ csi_bitlen = ((CSI_report_bitlen->cri_ssbri_bitlen * CSI_report_bitlen->nb_ssbri_cri) +
+ CSI_report_bitlen->rsrp_bitlen +(CSI_report_bitlen->diff_rsrp_bitlen *
+ (CSI_report_bitlen->nb_ssbri_cri -1 )) *UE_info->csi_report_template[UE_id][csi_report_id].nb_of_csi_ssb_report);
+
+ return csi_bitlen;
+}
+
+
+void nr_csi_meas_reporting(int Mod_idP,
+ int UE_id,
+ frame_t frame,
+ sub_frame_t slot,
+ int slots_per_tdd,
+ int ul_slots,
+ int n_slots_frame) {
+
+ NR_UE_info_t *UE_info = &RC.nrmac[Mod_idP]->UE_info;
+ NR_sched_pucch *curr_pucch;
+ NR_PUCCH_ResourceSet_t *pucchresset;
+ NR_CSI_ReportConfig_t *csirep;
+ NR_CellGroupConfig_t *secondaryCellGroup = UE_info->secondaryCellGroup[UE_id];
+ NR_CSI_MeasConfig_t *csi_measconfig = secondaryCellGroup->spCellConfig->spCellConfigDedicated->csi_MeasConfig->choice.setup;
+ NR_BWP_Uplink_t *ubwp=secondaryCellGroup->spCellConfig->spCellConfigDedicated->uplinkConfig->uplinkBWP_ToAddModList->list.array[0];
+ NR_PUCCH_Config_t *pucch_Config = ubwp->bwp_Dedicated->pucch_Config->choice.setup;
+
+ AssertFatal(csi_measconfig->csi_ReportConfigToAddModList->list.count>0,"NO CSI report configuration available");
+
+ for (int csi_report_id = 0; csi_report_id < csi_measconfig->csi_ReportConfigToAddModList->list.count; csi_report_id++){
+
+ csirep = csi_measconfig->csi_ReportConfigToAddModList->list.array[csi_report_id];
+
+ AssertFatal(csirep->reportConfigType.choice.periodic!=NULL,"Only periodic CSI reporting is implemented currently");
+ int period, offset, sched_slot;
+ csi_period_offset(csirep,&period,&offset);
+ sched_slot = (period+offset)%n_slots_frame;
+ // prepare to schedule csi measurement reception according to 5.2.1.4 in 38.214
+ // preparation is done in first slot of tdd period
+ if ( (frame%(period/n_slots_frame)==(offset/n_slots_frame)) && (slot==((sched_slot/slots_per_tdd)*slots_per_tdd))) {
+
+ // we are scheduling pucch for csi in the first pucch occasion (this comes before ack/nack)
+ curr_pucch = &UE_info->UE_sched_ctrl[UE_id].sched_pucch[sched_slot-slots_per_tdd+ul_slots][0];
+
+ NR_PUCCH_CSI_Resource_t *pucchcsires = csirep->reportConfigType.choice.periodic->pucch_CSI_ResourceList.list.array[0];
+
+ int found = -1;
+ pucchresset = pucch_Config->resourceSetToAddModList->list.array[1]; // set with formats >1
+ int n_list = pucchresset->resourceList.list.count;
+ for (int i=0; i<n_list; i++) {
+ if (*pucchresset->resourceList.list.array[i] == pucchcsires->pucch_Resource)
+ found = i;
+ }
+ AssertFatal(found>-1,"CSI resource not found among PUCCH resources");
+
+ curr_pucch->resource_indicator = found;
+
+ n_list = pucch_Config->resourceToAddModList->list.count;
+
+ // going through the list of PUCCH resources to find the one indexed by resource_id
+ for (int i=0; i<n_list; i++) {
+ NR_PUCCH_Resource_t *pucchres = pucch_Config->resourceToAddModList->list.array[i];
+ if (pucchres->pucch_ResourceId == *pucchresset->resourceList.list.array[found]) {
+ switch(pucchres->format.present){
+ case NR_PUCCH_Resource__format_PR_format2:
+ if (pucch_Config->format2->choice.setup->simultaneousHARQ_ACK_CSI == NULL)
+ curr_pucch->simultaneous_harqcsi = false;
+ else
+ curr_pucch->simultaneous_harqcsi = true;
+ break;
+ case NR_PUCCH_Resource__format_PR_format3:
+ if (pucch_Config->format3->choice.setup->simultaneousHARQ_ACK_CSI == NULL)
+ curr_pucch->simultaneous_harqcsi = false;
+ else
+ curr_pucch->simultaneous_harqcsi = true;
+ break;
+ case NR_PUCCH_Resource__format_PR_format4:
+ if (pucch_Config->format4->choice.setup->simultaneousHARQ_ACK_CSI == NULL)
+ curr_pucch->simultaneous_harqcsi = false;
+ else
+ curr_pucch->simultaneous_harqcsi = true;
+ break;
+ default:
+ AssertFatal(1==0,"Invalid PUCCH format type");
+ }
+ }
+ }
+ curr_pucch->csi_bits += nr_get_csi_bitlen(Mod_idP,UE_id,csi_report_id); // TODO function to compute CSI meas report bit size
+ curr_pucch->frame = frame;
+ curr_pucch->ul_slot = sched_slot;
+ }
+ }
+}
+
+
+void nr_rx_acknack(nfapi_nr_uci_pusch_pdu_t *uci_pusch,
+ nfapi_nr_uci_pucch_pdu_format_0_1_t *uci_01,
+ nfapi_nr_uci_pucch_pdu_format_2_3_4_t *uci_234,
+ NR_UL_IND_t *UL_info, NR_UE_sched_ctrl_t *sched_ctrl, NR_mac_stats_t *stats) {
+
+ // TODO
+ int max_harq_rounds = 4; // TODO define macro
+
+ if (uci_01 != NULL) {
+ // handle harq
+ int harq_idx_s = 0;
+
+ // iterate over received harq bits
+ for (int harq_bit = 0; harq_bit < uci_01->harq->num_harq; harq_bit++) {
+ // search for the right harq process
+ for (int harq_idx = harq_idx_s; harq_idx < NR_MAX_NB_HARQ_PROCESSES; harq_idx++) {
+ // if the gNB received ack with a good confidence
+ if ((UL_info->slot-1) == sched_ctrl->harq_processes[harq_idx].feedback_slot) {
+ if ((uci_01->harq->harq_list[harq_bit].harq_value == 1) &&
+ (uci_01->harq->harq_confidence_level == 0)) {
+ // toggle NDI and reset round
+ sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
+ sched_ctrl->harq_processes[harq_idx].round = 0;
+ }
+ else
+ sched_ctrl->harq_processes[harq_idx].round++;
+ sched_ctrl->harq_processes[harq_idx].is_waiting = 0;
+ harq_idx_s = harq_idx + 1;
+ // if the max harq rounds was reached
+ if (sched_ctrl->harq_processes[harq_idx].round == max_harq_rounds) {
+ sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
+ sched_ctrl->harq_processes[harq_idx].round = 0;
+ stats->dlsch_errors++;
+ }
+ break;
+ }
+ // if feedback slot processing is aborted
+ else if (((UL_info->slot-1) > sched_ctrl->harq_processes[harq_idx].feedback_slot) &&
+ (sched_ctrl->harq_processes[harq_idx].is_waiting)) {
+ sched_ctrl->harq_processes[harq_idx].round++;
+ if (sched_ctrl->harq_processes[harq_idx].round == max_harq_rounds) {
+ sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
+ sched_ctrl->harq_processes[harq_idx].round = 0;
+ }
+ sched_ctrl->harq_processes[harq_idx].is_waiting = 0;
+ }
+ }
+ }
+ }
+
+ if (uci_234 != NULL) {
+ int harq_idx_s = 0;
+ int acknack;
+
+ // iterate over received harq bits
+ for (int harq_bit = 0; harq_bit < uci_234->harq.harq_bit_len; harq_bit++) {
+ acknack = ((uci_234->harq.harq_payload[harq_bit>>3])>>harq_bit)&0x01;
+ for (int harq_idx = harq_idx_s; harq_idx < NR_MAX_NB_HARQ_PROCESSES-1; harq_idx++) {
+ // if the gNB received ack with a good confidence or if the max harq rounds was reached
+ if ((UL_info->slot-1) == sched_ctrl->harq_processes[harq_idx].feedback_slot) {
+ // TODO add some confidence level for when there is no CRC
+ if ((uci_234->harq.harq_crc != 1) && acknack) {
+ // toggle NDI and reset round
+ sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
+ sched_ctrl->harq_processes[harq_idx].round = 0;
+ }
+ else
+ sched_ctrl->harq_processes[harq_idx].round++;
+ sched_ctrl->harq_processes[harq_idx].is_waiting = 0;
+ harq_idx_s = harq_idx + 1;
+ // if the max harq rounds was reached
+ if (sched_ctrl->harq_processes[harq_idx].round == max_harq_rounds) {
+ sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
+ sched_ctrl->harq_processes[harq_idx].round = 0;
+ stats->dlsch_errors++;
+ }
+ break;
+ }
+ // if feedback slot processing is aborted
+ else if (((UL_info->slot-1) > sched_ctrl->harq_processes[harq_idx].feedback_slot) &&
+ (sched_ctrl->harq_processes[harq_idx].is_waiting)) {
+ sched_ctrl->harq_processes[harq_idx].round++;
+ if (sched_ctrl->harq_processes[harq_idx].round == max_harq_rounds) {
+ sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
+ sched_ctrl->harq_processes[harq_idx].round = 0;
+ }
+ sched_ctrl->harq_processes[harq_idx].is_waiting = 0;
+ }
+ }
+ }
+ }
+}
+
+
+// function to update pucch scheduling parameters in UE list when a USS DL is scheduled
+void nr_acknack_scheduling(int Mod_idP,
+ int UE_id,
+ frame_t frameP,
+ sub_frame_t slotP,
+ int slots_per_tdd,
+ int *pucch_id,
+ int *pucch_occ) {
+
+ NR_ServingCellConfigCommon_t *scc = RC.nrmac[Mod_idP]->common_channels->ServingCellConfigCommon;
+ NR_UE_info_t *UE_info = &RC.nrmac[Mod_idP]->UE_info;
+ NR_sched_pucch *curr_pucch;
+ int max_acknacks,pucch_res,first_ul_slot_tdd,k,i,l;
+ uint8_t pdsch_to_harq_feedback[8];
+ int found = 0;
+ int nr_ulmix_slots = scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofUplinkSlots;
+ if (scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofUplinkSymbols!=0)
+ nr_ulmix_slots++;
+
+ bool csi_pres=false;
+ for (k=0; k<nr_ulmix_slots; k++) {
+ if(UE_info->UE_sched_ctrl[UE_id].sched_pucch[k][0].csi_bits>0)
+ csi_pres=true;
+ }
+
+ // As a preference always schedule ack nacks in PUCCH0 (max 2 per slots)
+ // Unless there is CSI meas reporting scheduled in the period to avoid conflicts in the same slot
+ if (csi_pres)
+ max_acknacks=10;
+ else
+ max_acknacks=2;
+
+ // this is hardcoded for now as ue specific
+ NR_SearchSpace__searchSpaceType_PR ss_type = NR_SearchSpace__searchSpaceType_PR_ue_Specific;
+ get_pdsch_to_harq_feedback(Mod_idP,UE_id,ss_type,pdsch_to_harq_feedback);
+
+ // for each possible ul or mixed slot
+ for (k=0; k<nr_ulmix_slots; k++) {
+ for (l=0; l<1; l++) { // scheduling 2 PUCCH in a single slot does not work with the phone, currently
+ curr_pucch = &UE_info->UE_sched_ctrl[UE_id].sched_pucch[k][l];
+ //if it is possible to schedule acknack in current pucch (no exclusive csi pucch)
+ if ((curr_pucch->csi_bits == 0) || (curr_pucch->simultaneous_harqcsi==true)) {
+ // if there is free room in current pucch structure
+ if (curr_pucch->dai_c<max_acknacks) {
+ pucch_res = get_pucch_resource(UE_info,UE_id,k,l);
+ if (pucch_res>-1){
+ curr_pucch->resource_indicator = pucch_res;
+ curr_pucch->frame = frameP;
+ // first pucch occasion in first UL or MIXED slot
+ first_ul_slot_tdd = scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofDownlinkSlots;
+ i = 0;
+ while (i<8 && found == 0) { // look if timing indicator is among allowed values
+ if (pdsch_to_harq_feedback[i]==(first_ul_slot_tdd+k)-(slotP % slots_per_tdd))
+ found = 1;
+ if (found == 0) i++;
+ }
+ if (found == 1) {
+ // computing slot in which pucch is scheduled
+ curr_pucch->dai_c++;
+ curr_pucch->ul_slot = first_ul_slot_tdd + k + (slotP - (slotP % slots_per_tdd));
+ curr_pucch->timing_indicator = i; // index in the list of timing indicators
+ *pucch_id = k;
+ *pucch_occ = l;
+ return;
+ }
+ }
+ }
+ }
+ }
+ }
+ AssertFatal(1==0,"No Uplink slot available in accordance to allowed timing indicator\n");
+}
+
+
+void csi_period_offset(NR_CSI_ReportConfig_t *csirep,
+ int *period, int *offset) {
+
+ NR_CSI_ReportPeriodicityAndOffset_PR p_and_o = csirep->reportConfigType.choice.periodic->reportSlotConfig.present;
+
+ switch(p_and_o){
+ case NR_CSI_ReportPeriodicityAndOffset_PR_slots4:
+ *period = 4;
+ *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots4;
+ break;
+ case NR_CSI_ReportPeriodicityAndOffset_PR_slots5:
+ *period = 5;
+ *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots5;
+ break;
+ case NR_CSI_ReportPeriodicityAndOffset_PR_slots8:
+ *period = 8;
+ *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots8;
+ break;
+ case NR_CSI_ReportPeriodicityAndOffset_PR_slots10:
+ *period = 10;
+ *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots10;
+ break;
+ case NR_CSI_ReportPeriodicityAndOffset_PR_slots16:
+ *period = 16;
+ *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots16;
+ break;
+ case NR_CSI_ReportPeriodicityAndOffset_PR_slots20:
+ *period = 20;
+ *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots20;
+ break;
+ case NR_CSI_ReportPeriodicityAndOffset_PR_slots40:
+ *period = 40;
+ *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots40;
+ break;
+ case NR_CSI_ReportPeriodicityAndOffset_PR_slots80:
+ *period = 80;
+ *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots80;
+ break;
+ case NR_CSI_ReportPeriodicityAndOffset_PR_slots160:
+ *period = 160;
+ *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots160;
+ break;
+ case NR_CSI_ReportPeriodicityAndOffset_PR_slots320:
+ *period = 320;
+ *offset = csirep->reportConfigType.choice.periodic->reportSlotConfig.choice.slots320;
+ break;
+ default:
+ AssertFatal(1==0,"No periodicity and offset resource found in CSI report");
+ }
+}
+
+
+int get_pucch_resource(NR_UE_info_t *UE_info,int UE_id,int k,int l) {
+
+ // to be updated later, for now simple implementation
+ // use the second allocation just in case there is csi in the first
+ // in that case use second resource (for a different symbol) see 9.2 in 38.213
+ if (l==1) {
+ if (UE_info->UE_sched_ctrl[UE_id].sched_pucch[k][0].csi_bits==0)
+ return -1;
+ else
+ return 1;
+ }
+ else
+ return 0;
+
+}
+
+
+uint16_t compute_pucch_prb_size(uint8_t format,
+ uint8_t nr_prbs,
+ uint16_t O_tot,
+ uint16_t O_csi,
+ NR_PUCCH_MaxCodeRate_t *maxCodeRate,
+ uint8_t Qm,
+ uint8_t n_symb,
+ uint8_t n_re_ctrl) {
+
+ uint16_t O_crc;
+
+ if (O_tot<12)
+ O_crc = 0;
+ else{
+ if (O_tot<20)
+ O_crc = 6;
+ else {
+ if (O_tot<360)
+ O_crc = 11;
+ else
+ AssertFatal(1==0,"Case for segmented PUCCH not yet implemented");
+ }
+ }
+
+ int rtimes100;
+ switch(*maxCodeRate){
+ case NR_PUCCH_MaxCodeRate_zeroDot08 :
+ rtimes100 = 8;
+ break;
+ case NR_PUCCH_MaxCodeRate_zeroDot15 :
+ rtimes100 = 15;
+ break;
+ case NR_PUCCH_MaxCodeRate_zeroDot25 :
+ rtimes100 = 25;
+ break;
+ case NR_PUCCH_MaxCodeRate_zeroDot35 :
+ rtimes100 = 35;
+ break;
+ case NR_PUCCH_MaxCodeRate_zeroDot45 :
+ rtimes100 = 45;
+ break;
+ case NR_PUCCH_MaxCodeRate_zeroDot60 :
+ rtimes100 = 60;
+ break;
+ case NR_PUCCH_MaxCodeRate_zeroDot80 :
+ rtimes100 = 80;
+ break;
+ default :
+ AssertFatal(1==0,"Invalid MaxCodeRate");
+ }
+
+ float r = (float)rtimes100/100;
+
+ if (O_csi == O_tot) {
+ if ((O_tot+O_csi)>(nr_prbs*n_re_ctrl*n_symb*Qm*r))
+ AssertFatal(1==0,"MaxCodeRate %.2f can't support %d UCI bits and %d CRC bits with %d PRBs",
+ r,O_tot,O_crc,nr_prbs);
+ else
+ return nr_prbs;
+ }
+
+ if (format==2){
+ // TODO fix this for multiple CSI reports
+ for (int i=1; i<=nr_prbs; i++){
+ if((O_tot+O_crc)<=(i*n_symb*Qm*n_re_ctrl*r) &&
+ (O_tot+O_crc)>((i-1)*n_symb*Qm*n_re_ctrl*r))
+ return i;
+ }
+ AssertFatal(1==0,"MaxCodeRate %.2f can't support %d UCI bits and %d CRC bits with at most %d PRBs",
+ r,O_tot,O_crc,nr_prbs);
+ }
+ else{
+ AssertFatal(1==0,"Not yet implemented");
+ }
+
+}
diff --git a/openair2/LAYER2/NR_MAC_gNB/mac_proto.h b/openair2/LAYER2/NR_MAC_gNB/mac_proto.h
index b3cd91fd01..7bb08e4f04 100644
--- a/openair2/LAYER2/NR_MAC_gNB/mac_proto.h
+++ b/openair2/LAYER2/NR_MAC_gNB/mac_proto.h
@@ -183,6 +183,9 @@ void nr_schedule_pucch(int Mod_idP,
frame_t frameP,
sub_frame_t slotP);
+void csi_period_offset(NR_CSI_ReportConfig_t *csirep,
+ int *period, int *offset);
+
void nr_csi_meas_reporting(int Mod_idP,
int UE_id,
frame_t frameP,
--
2.26.2