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Commit 44fef7f3 authored by Fang-WANG's avatar Fang-WANG
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add phy procedure for msg4

parent 01141602
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Showing with 1011 additions and 98 deletions
openair1/SCHED_NR/phy_procedures_nr_gNB.c
View file @ 44fef7f3
......@@ -569,7 +569,7 @@ void phy_procedures_gNB_uespec_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx)
gNB->uci_pdu_list[num_ucis].pdu_type = NFAPI_NR_UCI_FORMAT_0_1_PDU_TYPE;
gNB->uci_pdu_list[num_ucis].pdu_size = sizeof(nfapi_nr_uci_pucch_pdu_format_0_1_t);
nfapi_nr_uci_pucch_pdu_format_0_1_t *uci_pdu_format0 = &gNB->uci_pdu_list[num_ucis].pucch_pdu_format_0_1;
uci_pdu_format0->rnti = pucch_pdu->rnti;
nr_decode_pucch0(gNB,
slot_rx,
uci_pdu_format0,
......
openair1/SCHED_NR_UE/phy_procedures_nr_ue.c
View file @ 44fef7f3
......@@ -875,7 +875,13 @@ int nr_ue_pdsch_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, int eNB_
else { // This is to adjust the llr offset in the case of skipping over a dmrs symbol (i.e. in case of no PDSCH REs in DMRS)
if (pdsch == RA_PDSCH) ue->pdsch_vars[proc->thread_id][eNB_id]->llr_offset[m]=ue->pdsch_vars[proc->thread_id][eNB_id]->llr_offset[m-1];
else if (pdsch == PDSCH || pdsch == SI_PDSCH) {
if (nr_rx_pdsch(ue,
if (dlsch0->harq_processes[harq_pid]->n_dmrs_cdm_groups == 2)
{
ue->pdsch_vars[proc->thread_id][eNB_id]->llr_offset[m]=ue->pdsch_vars[proc->thread_id][eNB_id]->llr_offset[m-1];
}
else
{
if (nr_rx_pdsch(ue,
proc,
pdsch,
eNB_id,
......@@ -888,6 +894,7 @@ int nr_ue_pdsch_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, int eNB_
i_mod,
dlsch0->current_harq_pid) < 0)
return -1;
}
}
else AssertFatal(1==0,"Not RA_PDSCH, SI_PDSCH or PDSCH\n");
}
......@@ -2155,7 +2162,7 @@ void nr_ue_prach_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, uint8_t
} else {
LOG_D(PHY, "In %s:[%d.%d] getting PRACH resources\n", __FUNCTION__, frame_tx, nr_slot_tx);
LOG_D(PHY, "In %s:[%d.%d] getting PRACH resources, UE mode is %d\n", __FUNCTION__, frame_tx, nr_slot_tx, ue->UE_mode[gNB_id]);
nr_prach = nr_ue_get_rach(prach_resources, &ue->prach_vars[0]->prach_pdu, mod_id, ue->CC_id, frame_tx, gNB_id, nr_slot_tx);
}
......
openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c
View file @ 44fef7f3
......@@ -47,6 +47,10 @@
#include "NR_MAC_COMMON/nr_mac.h"
#include "LAYER2/NR_MAC_UE/mac_proto.h"
#include "PHY/phy_extern_nr_ue.h"
//#define MSG4_TEST_BY_DO_RA
void nr_get_RA_window(NR_UE_MAC_INST_t *mac);
// Random Access procedure initialization as per 5.1.1 and initialization of variables specific
......@@ -607,9 +611,19 @@ uint8_t nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
if (ra->RA_window_cnt >= 0 && ra->RA_RAPID_found == 1) {
// Reset RA_active flag: it disables Msg3 retransmission (8.3 of TS 38.213)
nr_ra_succeeded(mod_id, frame, nr_slot_tx);
#ifdef MSG4_TEST_BY_DO_RA
if (1) //(get_softmodem_params()->sa) // use sa when the branch is unblock -- SA_WAITING
#else
if (get_softmodem_params()->sa)
#endif
{
ra->ra_state = WAIT_CONTENTION_RESOLUTION;
ra->RA_window_cnt = -1;
}
else
{
nr_ra_succeeded(mod_id, frame, nr_slot_tx);
}
} else if (ra->RA_window_cnt == 0 && !ra->RA_RAPID_found) {
LOG_I(MAC, "[UE %d][%d:%d] RAR reception failed \n", mod_id, frame, nr_slot_tx);
......@@ -737,6 +751,12 @@ void nr_ra_succeeded(module_id_t mod_id, frame_t frame, int slot){
ra->RA_window_cnt = -1;
#ifdef MSG4_TEST_BY_DO_RA
// we can delete the code when msg4 is triggered by SA RA
ra->RA_contention_resolution_cnt = -1;
ra->RA_contention_resolution_timer_active = 0;
#endif
} else {
LOG_I(MAC, "[UE %d][%d.%d][RAPROC] RA procedure succeeded. CB-RA: Contention Resolution is successful.\n", mod_id, frame, slot);
......@@ -748,11 +768,13 @@ void nr_ra_succeeded(module_id_t mod_id, frame_t frame, int slot){
LOG_D(MAC, "In %s: [UE %d][%d.%d] CB-RA: cleared contention resolution timer...\n", __FUNCTION__, mod_id, frame, slot);
}
LOG_D(MAC, "In %s: [UE %d] clearing RA_active flag...\n", __FUNCTION__, mod_id);
ra->t_crnti = 0;
ra->RA_active = 0;
ra->generate_nr_prach = 2;
ra->ra_state = RA_SUCCEEDED;
PHY_vars_UE_g[mod_id][0]->UE_mode[0] = PUSCH;
}
......
openair2/LAYER2/NR_MAC_UE/nr_ue_dci_configuration.c
View file @ 44fef7f3
......@@ -153,6 +153,16 @@ void config_dci_pdu(NR_UE_MAC_INST_t *mac, fapi_nr_dl_config_dci_dl_pdu_rel15_t
case NR_RNTI_CS:
break;
case NR_RNTI_TC:
// we use the initial DL BWP
sps = initialDownlinkBWP->genericParameters.cyclicPrefix == NULL ? 14 : 12;
monitoringSymbolsWithinSlot = (ss->monitoringSymbolsWithinSlot->buf[0]<<(sps-8)) | (ss->monitoringSymbolsWithinSlot->buf[1]>>(16-sps));
rel15->rnti = ra->t_crnti;
rel15->BWPSize = NRRIV2BW(initialDownlinkBWP->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
rel15->BWPStart = NRRIV2PRBOFFSET(bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE); //NRRIV2PRBOFFSET(initialDownlinkBWP->genericParameters.locationAndBandwidth, 275);
rel15->SubcarrierSpacing = initialDownlinkBWP->genericParameters.subcarrierSpacing;
rel15->dci_length_options[0] = nr_dci_size(scc, mac->scg, def_dci_pdu_rel15, rel15->dci_format_options[0], NR_RNTI_TC, rel15->BWPSize, bwp_id);
LOG_D(PHY, "pdcch params: rnti %d, bwp %d %d, len %d\n",rel15->rnti, rel15->BWPSize, rel15->BWPStart, rel15->dci_length_options[0]);
break;
case NR_RNTI_SP_CSI:
break;
......@@ -252,7 +262,12 @@ void ue_dci_configuration(NR_UE_MAC_INST_t *mac, fapi_nr_dl_config_request_t *dl
fill_dci_search_candidates(ss, rel15);
break;
case WAIT_CONTENTION_RESOLUTION:
LOG_E(MAC, "In %s: CB-RA not implemented yet. Should not have fallen in this case.\n", __FUNCTION__);
LOG_D(MAC, "[DCI_CONFIG] frame %d %d Configure monitoring of PDCCH candidates in Type1-PDCCH common random access search space, msg 4\n",frame,slot);
rel15->rnti = ra->t_crnti;
rel15->num_dci_options = 1; // just search the dci for msg4, should add the ul dci for retx for msg3 later.
rel15->dci_format_options[0] = NR_DL_DCI_FORMAT_1_0;
config_dci_pdu(mac, rel15, dl_config, NR_RNTI_TC, ss_id);
fill_dci_search_candidates(ss, rel15);
break;
default:
break;
......
openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c
View file @ 44fef7f3
......@@ -66,6 +66,8 @@
//#define DEBUG_EXTRACT_DCI
//#define DEBUG_RAR
#define MSG4_TEST_RANDOM_DATA
int get_rnti_type(NR_UE_MAC_INST_t *mac, uint16_t rnti){
RA_config_t *ra = &mac->ra;
......@@ -73,10 +75,10 @@ int get_rnti_type(NR_UE_MAC_INST_t *mac, uint16_t rnti){
if (rnti == ra->ra_rnti) {
rnti_type = NR_RNTI_RA;
} else if (rnti == mac->crnti) {
rnti_type = NR_RNTI_C;
} else if (rnti == ra->t_crnti) {
rnti_type = NR_RNTI_TC;
}else if (rnti == mac->crnti) {
rnti_type = NR_RNTI_C;
} else if (rnti == 0xFFFE) {
rnti_type = NR_RNTI_P;
} else if (rnti == 0xFFFF) {
......@@ -469,7 +471,7 @@ int8_t nr_ue_process_dci(module_id_t module_id, int cc_id, uint8_t gNB_index, fr
AssertFatal(mac->DLbwp[0]!=NULL,"DLbwp[0] should not be zero here!\n");
AssertFatal(mac->ULbwp[0]!=NULL,"DLbwp[0] should not be zero here!\n");
const uint16_t n_RB_DLBWP = (ra->ra_state == WAIT_RAR) ? NRRIV2BW(mac->scc->downlinkConfigCommon->initialDownlinkBWP->genericParameters.locationAndBandwidth, MAX_BWP_SIZE) : NRRIV2BW(mac->DLbwp[0]->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
const uint16_t n_RB_DLBWP = ((ra->ra_state == WAIT_RAR)||(ra->ra_state == WAIT_CONTENTION_RESOLUTION) ) ? NRRIV2BW(mac->scc->downlinkConfigCommon->initialDownlinkBWP->genericParameters.locationAndBandwidth, MAX_BWP_SIZE) : NRRIV2BW(mac->DLbwp[0]->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
LOG_D(MAC, "In %s: Processing received DCI format %s (DL BWP %d)\n", __FUNCTION__, dci_formats[dci_format], n_RB_DLBWP);
......@@ -740,7 +742,7 @@ int8_t nr_ue_process_dci(module_id_t module_id, int cc_id, uint8_t gNB_index, fr
}
/* PDSCH_TO_HARQ_FEEDBACK_TIME_IND (only if CRC scrambled by C-RNTI or CS-RNTI or new-RNTI)*/
dlsch_config_pdu_1_0->pdsch_to_harq_feedback_time_ind = dci->pdsch_to_harq_feedback_timing_indicator.val;
dlsch_config_pdu_1_0->pdsch_to_harq_feedback_time_ind = dci->pdsch_to_harq_feedback_timing_indicator.val + 1;
LOG_D(MAC,"(nr_ue_procedures.c) rnti = %x dl_config->number_pdus = %d\n",
dl_config->dl_config_list[dl_config->number_pdus].dlsch_config_pdu.rnti,
......@@ -1137,7 +1139,7 @@ uint8_t nr_extract_dci_info(NR_UE_MAC_INST_t *mac,
int pos=0;
int fsize=0;
if (rnti_type == NR_RNTI_C) {
if ((rnti_type == NR_RNTI_C) || (rnti_type == NR_RNTI_TC)) {
// First find out the DCI format from the first bit (UE performed blind decoding)
pos++;
dci_pdu_rel15->format_indicator = (*dci_pdu>>(dci_size-pos))&1;
......@@ -1173,32 +1175,32 @@ uint8_t nr_extract_dci_info(NR_UE_MAC_INST_t *mac,
pos=fsize;
dci_pdu_rel15->frequency_domain_assignment.val = *dci_pdu>>(dci_size-pos)&((1<<fsize)-1);
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"frequency-domain assignment %d (%d bits) N_RB_BWP %d=> %d (0x%lx)\n",dci_pdu_rel15->frequency_domain_assignment.val,fsize,N_RB,dci_size-pos,*dci_pdu);
LOG_I(MAC,"frequency-domain assignment %d (%d bits) N_RB_BWP %d=> %d (0x%lx)\n",dci_pdu_rel15->frequency_domain_assignment.val,fsize,N_RB,dci_size-pos,*dci_pdu);
#endif
// Time domain assignment
pos+=4;
dci_pdu_rel15->time_domain_assignment.val = (*dci_pdu >> (dci_size-pos))&0xf;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"time-domain assignment %d (4 bits)=> %d (0x%lx)\n",dci_pdu_rel15->time_domain_assignment.val,dci_size-pos,*dci_pdu);
LOG_I(MAC,"time-domain assignment %d (4 bits)=> %d (0x%lx)\n",dci_pdu_rel15->time_domain_assignment.val,dci_size-pos,*dci_pdu);
#endif
// VRB to PRB mapping
pos++;
dci_pdu_rel15->vrb_to_prb_mapping.val = (*dci_pdu>>(dci_size-pos))&0x1;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"vrb to prb mapping %d (1 bits)=> %d (0x%lx)\n",dci_pdu_rel15->vrb_to_prb_mapping.val,dci_size-pos,*dci_pdu);
LOG_I(MAC,"vrb to prb mapping %d (1 bits)=> %d (0x%lx)\n",dci_pdu_rel15->vrb_to_prb_mapping.val,dci_size-pos,*dci_pdu);
#endif
// MCS
pos+=5;
dci_pdu_rel15->mcs = (*dci_pdu>>(dci_size-pos))&0x1f;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"mcs %d (5 bits)=> %d (0x%lx)\n",dci_pdu_rel15->mcs,dci_size-pos,*dci_pdu);
LOG_I(MAC,"mcs %d (5 bits)=> %d (0x%lx)\n",dci_pdu_rel15->mcs,dci_size-pos,*dci_pdu);
#endif
// TB scaling
pos+=2;
dci_pdu_rel15->tb_scaling = (*dci_pdu>>(dci_size-pos))&0x3;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"tb_scaling %d (2 bits)=> %d (0x%lx)\n",dci_pdu_rel15->tb_scaling,dci_size-pos,*dci_pdu);
LOG_I(MAC,"tb_scaling %d (2 bits)=> %d (0x%lx)\n",dci_pdu_rel15->tb_scaling,dci_size-pos,*dci_pdu);
#endif
break;
......@@ -1267,7 +1269,7 @@ uint8_t nr_extract_dci_info(NR_UE_MAC_INST_t *mac,
dci_pdu_rel15->ndi = (*dci_pdu>>(dci_size-pos))&1;
#ifdef DEBUG_EXTRACT_DCI
LOG_D(MAC,"NDI %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->ndi,1,dci_size-pos,*dci_pdu);
#endif
#endif
// Redundancy version 2bit
pos+=2;
......@@ -1290,7 +1292,7 @@ uint8_t nr_extract_dci_info(NR_UE_MAC_INST_t *mac,
LOG_D(MAC,"DAI %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->dai[0].val,2,dci_size-pos,*dci_pdu);
#endif
// TPC command for scheduled PUCCH 2bit
// TPC command for scheduled PUCCH 2bit
pos+=2;
dci_pdu_rel15->tpc = (*dci_pdu>>(dci_size-pos))&3;
#ifdef DEBUG_EXTRACT_DCI
......@@ -1304,7 +1306,7 @@ uint8_t nr_extract_dci_info(NR_UE_MAC_INST_t *mac,
LOG_D(MAC,"PUCCH RI %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->pucch_resource_indicator,3,dci_size-pos,*dci_pdu);
#endif
// PDSCH-to-HARQ_feedback timing indicator 3bit
// PDSCH-to-HARQ_feedback timing indicator 3bit
pos+=3;
dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.val = (*dci_pdu>>(dci_size-pos))&0x7;
#ifdef DEBUG_EXTRACT_DCI
......@@ -1382,38 +1384,82 @@ uint8_t nr_extract_dci_info(NR_UE_MAC_INST_t *mac,
break;
case NR_RNTI_TC:
// indicating a DL DCI format 1bit
pos++;
dci_pdu_rel15->format_indicator = (*dci_pdu>>(dci_size-pos))&1;
// Freq domain assignment 0-16 bit
fsize = (int)ceil( log2( (N_RB*(N_RB+1))>>1 ) );
pos+=fsize;
dci_pdu_rel15->frequency_domain_assignment.val = (*dci_pdu>>(dci_size-pos))&((1<<fsize)-1);
#ifdef DEBUG_EXTRACT_DCI
LOG_I(MAC,"Freq domain assignment %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->frequency_domain_assignment.val,fsize,dci_size-pos,*dci_pdu);
#endif
// Time domain assignment 4 bit
pos+=4;
dci_pdu_rel15->time_domain_assignment.val = (*dci_pdu>>(dci_size-pos))&0xf;
#ifdef DEBUG_EXTRACT_DCI
LOG_I(MAC,"Time domain assignment %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->time_domain_assignment.val,4,dci_size-pos,*dci_pdu);
#endif
pos+=1;
// VRB to PRB mapping 1 bit
dci_pdu_rel15->vrb_to_prb_mapping.val = (*dci_pdu>>(dci_size-pos))&1;
#ifdef DEBUG_EXTRACT_DCI
LOG_I(MAC,"VRB to PRB %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->vrb_to_prb_mapping.val,1,dci_size-pos,*dci_pdu);
#endif
// MCS 5bit //bit over 32, so dci_pdu ++
pos+=5;
dci_pdu_rel15->mcs = (*dci_pdu>>(dci_size-pos))&0x1f;
#ifdef DEBUG_EXTRACT_DCI
LOG_I(MAC,"MCS %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->mcs,5,dci_size-pos,*dci_pdu);
#endif
// New data indicator 1bit
pos+=1;
dci_pdu_rel15->ndi = (*dci_pdu>>(dci_size-pos))&1;
// Redundancy version 2bit
#ifdef DEBUG_EXTRACT_DCI
LOG_I(MAC,"NDI %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->ndi,1,dci_size-pos,*dci_pdu);
#endif
pos+=2;
dci_pdu_rel15->rv = (*dci_pdu>>(dci_size-pos))&3;
// HARQ process number 4bit
#ifdef DEBUG_EXTRACT_DCI
LOG_I(MAC,"RV %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->rv,2,dci_size-pos,*dci_pdu);
#endif
pos+=4;
dci_pdu_rel15->harq_pid = (*dci_pdu>>(dci_size-pos))&0xf;
// Downlink assignment index  E2 bits
#ifdef DEBUG_EXTRACT_DCI
LOG_I(MAC,"HARQ_PID %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->harq_pid,4,dci_size-pos,*dci_pdu);
#endif
// Downlink assignment index 2 bits
pos+=2;
dci_pdu_rel15->dai[0].val = (*dci_pdu>>(dci_size-pos))&3;
// TPC command for scheduled PUCCH  E2 bits
#ifdef DEBUG_EXTRACT_DCI
LOG_I(MAC,"DAI %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->dai[0].val,2,dci_size-pos,*dci_pdu);
#endif
// TPC command for scheduled PUCCH 2 bits
pos+=2;
dci_pdu_rel15->tpc = (*dci_pdu>>(dci_size-pos))&3;
// PDSCH-to-HARQ_feedback timing indicator  E3 bits
#ifdef DEBUG_EXTRACT_DCI
LOG_I(MAC,"TPC %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->tpc,2,dci_size-pos,*dci_pdu);
#endif
// pucch_resource_indicator indicator 3 bits
pos+=3;
dci_pdu_rel15->pucch_resource_indicator = (*dci_pdu>>(dci_size-pos))&7;
#ifdef DEBUG_EXTRACT_DCI
LOG_I(MAC,"PUCCH RESOURCE INDICATOR %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->pucch_resource_indicator,3,dci_size-pos,*dci_pdu);
#endif
// PDSCH-to-HARQ_feedback timing indicator 3 bits
pos+=3;
dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.val = (*dci_pdu>>(dci_size-pos))&7;
#ifdef DEBUG_EXTRACT_DCI
LOG_I(MAC,"PDSCH to HARQ TI %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.val,3,dci_size-pos,*dci_pdu);
#endif
break;
}
......@@ -1886,9 +1932,13 @@ void nr_ue_process_mac_pdu(nr_downlink_indication_t *dl_info,
LOG_I(MAC, "[UE %d][RAPROC] Frame %d : received contention resolution msg: %x.%x.%x.%x.%x.%x, Terminating RA procedure\n", module_idP, frameP, pduP[0], pduP[1], pduP[2], pduP[3], pduP[4], pduP[5]);
if (ra->RA_active == 1) {
mac->crnti = ra->t_crnti;
nr_ra_succeeded(module_idP, frameP, slot);
}
#ifdef MSG4_TEST_RANDOM_DATA
// return here because the msg4 is random data for this version
return; // don't check other LCHs
#endif
break;
case DL_SCH_LCID_PADDING:
done = 1;
......
openair2/LAYER2/NR_MAC_gNB/config.c
View file @ 44fef7f3
......@@ -398,7 +398,7 @@ int rrc_mac_config_req_gNB(module_id_t Mod_idP,
NR_UE_info_t *UE_info = &RC.nrmac[Mod_idP]->UE_info;
if (add_ue == 1 && get_softmodem_params()->phy_test) {
const int UE_id = add_new_nr_ue(Mod_idP, rnti, secondaryCellGroup);
const int UE_id = add_new_nr_ue(Mod_idP, rnti, secondaryCellGroup, true);
LOG_I(PHY,"Added new UE_id %d/%x with initial secondaryCellGroup\n",UE_id,rnti);
} else if (add_ue == 1 && !get_softmodem_params()->phy_test) {
/* TODO: should check for free RA process */
......
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
View file @ 44fef7f3
......@@ -341,9 +341,12 @@ void nr_store_dlsch_buffer(module_id_t module_id,
NR_UE_sched_ctrl_t *sched_ctrl = &UE_info->UE_sched_ctrl[UE_id];
sched_ctrl->num_total_bytes = 0;
const int lcid = DL_SCH_LCID_DTCH;
const uint16_t rnti = UE_info->rnti[UE_id];
sched_ctrl->rlc_status[lcid] = mac_rlc_status_ind(module_id,
const uint16_t rnti = UE_info->rnti[UE_id];
if (UE_info->connected[UE_id] == 1) // only check connected UE
{
const int lcid = DL_SCH_LCID_DTCH;
sched_ctrl->rlc_status[lcid] = mac_rlc_status_ind(module_id,
rnti,
module_id,
frame,
......@@ -353,8 +356,8 @@ void nr_store_dlsch_buffer(module_id_t module_id,
lcid,
0,
0);
sched_ctrl->num_total_bytes += sched_ctrl->rlc_status[lcid].bytes_in_buffer;
LOG_D(MAC,
sched_ctrl->num_total_bytes += sched_ctrl->rlc_status[lcid].bytes_in_buffer;
LOG_D(MAC,
"[%s][%d.%d], DTCH%d->DLSCH, RLC status %d bytes TA %d\n",
__func__,
frame,
......@@ -362,6 +365,7 @@ void nr_store_dlsch_buffer(module_id_t module_id,
lcid,
sched_ctrl->rlc_status[lcid].bytes_in_buffer,
sched_ctrl->ta_apply);
}
}
}
......@@ -450,7 +454,7 @@ void pf_dl(module_id_t module_id,
}
/* Find PUCCH occasion: if it fails, undo CCE allocation (undoing PUCCH
* allocation after CCE alloc fail would be more complex) */
const bool alloc = nr_acknack_scheduling(module_id, UE_id, frame, slot);
const bool alloc = nr_acknack_scheduling(module_id, UE_id, frame, slot, 1);
if (!alloc) {
LOG_W(MAC,
"%s(): could not find PUCCH for UE %d/%04x@%d.%d\n",
......@@ -543,7 +547,7 @@ void pf_dl(module_id_t module_id,
/* Find PUCCH occasion: if it fails, undo CCE allocation (undoing PUCCH
* allocation after CCE alloc fail would be more complex) */
const bool alloc = nr_acknack_scheduling(module_id, UE_id, frame, slot);
const bool alloc = nr_acknack_scheduling(module_id, UE_id, frame, slot, 1);
if (!alloc) {
LOG_W(MAC,
"%s(): could not find PUCCH for UE %d/%04x@%d.%d\n",
......
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c
View file @ 44fef7f3
......@@ -329,7 +329,7 @@ void nr_preprocessor_phytest(module_id_t module_id,
__func__,
UE_id);
const bool alloc = nr_acknack_scheduling(module_id, UE_id, frame, slot);
const bool alloc = nr_acknack_scheduling(module_id, UE_id, frame, slot, 1);
if (!alloc) {
LOG_D(MAC,
"%s(): could not find PUCCH for UE %d/%04x@%d.%d\n",
......
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
View file @ 44fef7f3
......@@ -210,7 +210,7 @@ int allocate_nr_CCEs(gNB_MAC_INST *nr_mac,
return(first_cce);
}
}
void nr_save_pusch_fields(const NR_ServingCellConfigCommon_t *scc,
const NR_BWP_Uplink_t *ubwp,
......@@ -563,6 +563,7 @@ void nr_configure_pdcch(nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu,
NR_ServingCellConfigCommon_t *scc,
NR_BWP_Downlink_t *bwp)
{
int sps;
if (bwp) { // This is not the InitialBWP
pdcch_pdu->BWPSize = NRRIV2BW(bwp->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
pdcch_pdu->BWPStart = NRRIV2PRBOFFSET(bwp->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
......@@ -571,7 +572,19 @@ void nr_configure_pdcch(nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu,
// first symbol
//AssertFatal(pdcch_scs==kHz15, "PDCCH SCS above 15kHz not allowed if a symbol above 2 is monitored");
int sps = bwp->bwp_Common->genericParameters.cyclicPrefix == NULL ? 14 : 12;
sps = bwp->bwp_Common->genericParameters.cyclicPrefix == NULL ? 14 : 12;
}
else { // this is for InitialBWP
pdcch_pdu->BWPSize = NRRIV2BW(scc->downlinkConfigCommon->initialDownlinkBWP->genericParameters.locationAndBandwidth,275);
pdcch_pdu->BWPStart = NRRIV2PRBOFFSET(scc->downlinkConfigCommon->initialDownlinkBWP->genericParameters.locationAndBandwidth,275);
pdcch_pdu->SubcarrierSpacing = scc->downlinkConfigCommon->initialDownlinkBWP->genericParameters.subcarrierSpacing;
pdcch_pdu->CyclicPrefix = (scc->downlinkConfigCommon->initialDownlinkBWP->genericParameters.cyclicPrefix==NULL) ? 0 : *scc->downlinkConfigCommon->initialDownlinkBWP->genericParameters.cyclicPrefix;
// first symbol
//AssertFatal(pdcch_scs==kHz15, "PDCCH SCS above 15kHz not allowed if a symbol above 2 is monitored");
sps = scc->downlinkConfigCommon->initialDownlinkBWP->genericParameters.cyclicPrefix == NULL ? 14 : 12;
}
AssertFatal(ss->monitoringSymbolsWithinSlot!=NULL,"ss->monitoringSymbolsWithinSlot is null\n");
AssertFatal(ss->monitoringSymbolsWithinSlot->buf!=NULL,"ss->monitoringSymbolsWithinSlot->buf is null\n");
......@@ -617,10 +630,6 @@ void nr_configure_pdcch(nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu,
//precoderGranularity
pdcch_pdu->precoderGranularity = coreset->precoderGranularity;
}
else { // this is for InitialBWP
AssertFatal(1==0,"Fill in InitialBWP PDCCH configuration\n");
}
}
......@@ -1130,41 +1139,75 @@ void fill_dci_pdu_rel15(const NR_ServingCellConfigCommon_t *scc,
LOG_D(PHY, "dci_pdu_rel15->system_info_indicator = %i\n", dci_pdu_rel15->system_info_indicator);
break;
case NR_RNTI_TC:
// indicating a DL DCI format 1bit
*dci_pdu |= ((uint64_t)dci_pdu_rel15->format_indicator & 1) << (dci_size - pos++);
// Freq domain assignment 0-16 bit
fsize = (int)ceil(log2((N_RB * (N_RB + 1)) >> 1));
for (int i = 0; i < fsize; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->frequency_domain_assignment.val >> (fsize - i - 1)) & 1) << (dci_size - pos++);
// Time domain assignment 4 bit
for (int i = 0; i < 4; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->time_domain_assignment.val >> (3 - i)) & 1) << (dci_size - pos++);
// VRB to PRB mapping 1 bit
*dci_pdu |= ((uint64_t)dci_pdu_rel15->vrb_to_prb_mapping.val & 1) << (dci_size - pos++);
// MCS 5bit //bit over 32, so dci_pdu ++
for (int i = 0; i < 5; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->mcs >> (4 - i)) & 1) << (dci_size - pos++);
// New data indicator 1bit
*dci_pdu |= ((uint64_t)dci_pdu_rel15->ndi & 1) << (dci_size - pos++);
// Redundancy version 2bit
for (int i = 0; i < 2; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->rv >> (1 - i)) & 1) << (dci_size - pos++);
// HARQ process number 4bit
for (int i = 0; i < 4; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->harq_pid >> (3 - i)) & 1) << (dci_size - pos++);
// Downlink assignment index – 2 bits
for (int i = 0; i < 2; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->dai[0].val >> (1 - i)) & 1) << (dci_size - pos++);
// TPC command for scheduled PUCCH – 2 bits
for (int i = 0; i < 2; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->tpc >> (1 - i)) & 1) << (dci_size - pos++);
// PDSCH-to-HARQ_feedback timing indicator – 3 bits
for (int i = 0; i < 3; i++)
*dci_pdu |= (((uint64_t)dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.val >> (2 - i)) & 1) << (dci_size - pos++);
case NR_RNTI_TC:
dci_pdu_rel15->format_indicator = 1;
// indicating a DL DCI format 1bit
pos=1;
*dci_pdu |= ((uint64_t)dci_pdu_rel15->format_indicator&0x1)<<(dci_size-pos);
LOG_D(MAC,"format indicator %d (%d bits)=> %d (0x%lx), dci size %d\n",dci_pdu_rel15->format_indicator,1,dci_size-pos,*dci_pdu, dci_size);
// Freq domain assignment 0-16 bit
fsize = (int)ceil( log2( (N_RB*(N_RB+1))>>1 ) );
pos += fsize;
*dci_pdu |= ((uint64_t)dci_pdu_rel15->frequency_domain_assignment.val&((1<<fsize)-1)) << (dci_size-pos);
LOG_D(MAC,"Freq domain assignment %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->frequency_domain_assignment.val,fsize,dci_size-pos,*dci_pdu);
// Time domain assignment 4 bit
pos += 4;
*dci_pdu |= ((uint64_t)dci_pdu_rel15->time_domain_assignment.val&0xf) << (dci_size-pos);
LOG_D(MAC,"Time domain assignment %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->time_domain_assignment.val,4,dci_size-pos,*dci_pdu);
// VRB to PRB mapping 1 bit
pos += 1;
*dci_pdu |= ((uint64_t)dci_pdu_rel15->vrb_to_prb_mapping.val&1)<<(dci_size-pos);
LOG_D(MAC,"VRB to PRB %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->vrb_to_prb_mapping.val,1,dci_size-pos,*dci_pdu);
// MCS 5bit //bit over 32, so dci_pdu ++
pos+=5;
*dci_pdu |= ((uint64_t)dci_pdu_rel15->mcs&0x1f)<<(dci_size-pos);
LOG_D(MAC,"MCS %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->mcs,5,dci_size-pos,*dci_pdu);
// New data indicator 1bit
pos += 1;
*dci_pdu |= ((uint64_t)dci_pdu_rel15->ndi&1)<<(dci_size-pos);
LOG_D(MAC,"NDI %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->ndi,1,dci_size-pos,*dci_pdu);
// Redundancy version 2bit
pos += 2;
*dci_pdu |= ((uint64_t)dci_pdu_rel15->rv&0x3)<<(dci_size-pos);
LOG_D(MAC,"RV %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->rv,2,dci_size-pos,*dci_pdu);
// HARQ process number 4bit
pos += 4;
*dci_pdu |= ((uint64_t)dci_pdu_rel15->harq_pid&0xf)<<(dci_size-pos);
LOG_D(MAC,"HARQ_PID %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->harq_pid,4,dci_size-pos,*dci_pdu);
// Downlink assignment index – 2 bits
pos += 2;
*dci_pdu |= ((uint64_t)dci_pdu_rel15->dai[0].val&0x3)<<(dci_size-pos);
LOG_D(MAC,"DAI %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->dai[0].val,2,dci_size-pos,*dci_pdu);
// TPC command for scheduled PUCCH – 2 bits
pos += 2;
*dci_pdu |= ((uint64_t)dci_pdu_rel15->tpc&0x3)<<(dci_size-pos);
LOG_D(MAC,"TPC %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->tpc,2,dci_size-pos,*dci_pdu);
// LOG_D(MAC, "DCI PDU: [0]->0x%08llx \t [1]->0x%08llx \t [2]->0x%08llx \t [3]->0x%08llx\n",
// dci_pdu[0], dci_pdu[1], dci_pdu[2], dci_pdu[3]);
// pucch_resource_indicator – 3 bits
pos += 3;
*dci_pdu |= ((uint64_t)dci_pdu_rel15->pucch_resource_indicator&0x7)<<(dci_size-pos);
LOG_D(MAC,"pucch_resource_indicator %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->pucch_resource_indicator,3,dci_size-pos,*dci_pdu);
// PDSCH-to-HARQ_feedback timing indicator – 3 bits
pos += 3;
*dci_pdu |= ((uint64_t)dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.val&0x7)<<(dci_size-pos);
LOG_D(MAC,"PDSCH to HARQ TI %d (%d bits)=> %d (0x%lx)\n",dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.val,3,dci_size-pos,*dci_pdu);
break;
}
break;
}
break;
case NR_UL_DCI_FORMAT_0_0:
switch (rnti_type) {
......@@ -1614,7 +1657,7 @@ int get_nrofHARQ_ProcessesForPDSCH(e_NR_PDSCH_ServingCellConfig__nrofHARQ_Proces
}
//------------------------------------------------------------------------------
int add_new_nr_ue(module_id_t mod_idP, rnti_t rntiP, NR_CellGroupConfig_t *secondaryCellGroup)
int add_new_nr_ue(module_id_t mod_idP, rnti_t rntiP, NR_CellGroupConfig_t *secondaryCellGroup, bool isConnected)
{
NR_UE_info_t *UE_info = &RC.nrmac[mod_idP]->UE_info;
LOG_I(MAC, "[gNB %d] Adding UE with rnti %x (num_UEs %d)\n",
......@@ -1630,6 +1673,7 @@ int add_new_nr_ue(module_id_t mod_idP, rnti_t rntiP, NR_CellGroupConfig_t *secon
int UE_id = i;
UE_info->num_UEs++;
UE_info->active[UE_id] = true;
UE_info->connected[UE_id] = isConnected; // be true when msg4 is ACKed
UE_info->rnti[UE_id] = rntiP;
UE_info->secondaryCellGroup[UE_id] = secondaryCellGroup;
add_nr_list(&UE_info->list, UE_id);
......@@ -1811,8 +1855,19 @@ bool find_free_CCE(module_id_t module_id,
&nr_of_candidates,
sched_ctrl->search_space);
const int cid = sched_ctrl->coreset->controlResourceSetId;
const uint16_t Y = RC.nrmac[module_id]->UE_info.Y[UE_id][cid][slot];
const int m = RC.nrmac[module_id]->UE_info.num_pdcch_cand[UE_id][cid];
uint16_t Y;
int m;
if (RC.nrmac[module_id]->UE_info.connected[UE_id] == true)
{
Y = RC.nrmac[module_id]->UE_info.Y[UE_id][cid][slot];
m = RC.nrmac[module_id]->UE_info.num_pdcch_cand[UE_id][cid];
}
else
{
Y = 0;
m = 0;
}
sched_ctrl->cce_index = allocate_nr_CCEs(RC.nrmac[module_id],
sched_ctrl->active_bwp,
sched_ctrl->coreset,
......
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c
View file @ 44fef7f3
......@@ -420,7 +420,8 @@ void handle_nr_uci_pucch_2_3_4(module_id_t mod_id,
bool nr_acknack_scheduling(int mod_id,
int UE_id,
frame_t frame,
sub_frame_t slot)
sub_frame_t slot,
int isUEspec)
{
const NR_ServingCellConfigCommon_t *scc = RC.nrmac[mod_id]->common_channels->ServingCellConfigCommon;
const int n_slots_frame = nr_slots_per_frame[*scc->ssbSubcarrierSpacing];
......@@ -494,7 +495,15 @@ bool nr_acknack_scheduling(int mod_id,
return false;
// this is hardcoded for now as ue specific
NR_SearchSpace__searchSpaceType_PR ss_type = NR_SearchSpace__searchSpaceType_PR_ue_Specific;
NR_SearchSpace__searchSpaceType_PR ss_type;
if( isUEspec == 1)
{
ss_type = NR_SearchSpace__searchSpaceType_PR_ue_Specific;
}
else
{
ss_type = NR_SearchSpace__searchSpaceType_PR_common;
}
uint8_t pdsch_to_harq_feedback[8];
get_pdsch_to_harq_feedback(mod_id, UE_id, ss_type, pdsch_to_harq_feedback);
......@@ -520,7 +529,7 @@ bool nr_acknack_scheduling(int mod_id,
memset(pucch, 0, sizeof(*pucch));
pucch->frame = s == n_slots_frame - 1 ? (f + 1) % 1024 : f;
pucch->ul_slot = (s + 1) % n_slots_frame;
return nr_acknack_scheduling(mod_id, UE_id, frame, slot);
return nr_acknack_scheduling(mod_id, UE_id, frame, slot, isUEspec);
}
pucch->timing_indicator = i;
......
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c
View file @ 44fef7f3
......@@ -33,6 +33,8 @@
#include "executables/softmodem-common.h"
#include "common/utils/nr/nr_common.h"
//#define MSG4_TEST_BY_DO_RA
//38.321 Table 6.1.3.1-1
const uint32_t NR_SHORT_BSR_TABLE[32] = {
0, 10, 14, 20, 28, 38, 53, 74,
......@@ -471,7 +473,12 @@ void nr_rx_sdu(const module_id_t gnb_mod_idP,
current_rnti);
continue;
}
const int UE_id = add_new_nr_ue(gnb_mod_idP, ra->rnti, ra->secondaryCellGroup);
#ifdef MSG4_TEST_BY_DO_RA
bool isConnected = false; // (get_softmodem_params()->sa ? false:true); // use sa when the branch is unblock -- SA_WAITING
#else
bool isConnected = get_softmodem_params()->sa ? false:true;
#endif
const int UE_id = add_new_nr_ue(gnb_mod_idP, ra->rnti, ra->secondaryCellGroup, isConnected);
UE_info->UE_beam_index[UE_id] = ra->beam_id;
LOG_I(MAC,
"[gNB %d][RAPROC] PUSCH with TC_RNTI %x received correctly, "
......@@ -483,13 +490,22 @@ void nr_rx_sdu(const module_id_t gnb_mod_idP,
// re-initialize ta update variables afrer RA procedure completion
UE_info->UE_sched_ctrl[UE_id].ta_frame = frameP;
free(ra->preambles.preamble_list);
ra->state = RA_IDLE;
LOG_I(MAC,
"reset RA state information for RA-RNTI %04x/index %d\n",
ra->rnti,
i);
if (isConnected) // NSA mode
{
free(ra->preambles.preamble_list);
ra->state = RA_IDLE;
LOG_I(MAC,
"reset RA state information for RA-RNTI %04x/index %d\n",
ra->rnti,
i);
}
else // SA mode
{
ra->state = Msg4;
ra->Msg4_frame = ( frameP +2 ) % 1024;
ra->Msg4_slot = 1;
LOG_I(MAC, "set RA state to Msg4 for RA-RNTI %04x, msg4 frame %d %d\n", ra->rnti, ra->Msg4_frame, ra->Msg4_slot);
}
return;
}
}
......
openair2/LAYER2/NR_MAC_gNB/mac_proto.h
View file @ 44fef7f3
......@@ -81,7 +81,10 @@ void schedule_nr_sib1(module_id_t module_idP, frame_t frameP, sub_frame_t subfra
void nr_simple_dlsch_preprocessor(module_id_t module_id,
frame_t frame,
sub_frame_t slot);
/* \brief default preprocessor */
void nr_simple_dlsch_preprocessor_msg4(module_id_t module_id,
frame_t frame,
sub_frame_t slot);
void schedule_nr_mib(module_id_t module_idP, frame_t frameP, sub_frame_t subframeP, uint8_t slots_per_frame);
/// uplink scheduler
......@@ -192,7 +195,8 @@ void nr_csi_meas_reporting(int Mod_idP,
bool nr_acknack_scheduling(int Mod_idP,
int UE_id,
frame_t frameP,
sub_frame_t slotP);
sub_frame_t slotP,
int isUEspec);
void get_pdsch_to_harq_feedback(int Mod_idP,
int UE_id,
......@@ -307,7 +311,7 @@ int find_nr_UE_id(module_id_t mod_idP, rnti_t rntiP);
int find_nr_RA_id(module_id_t mod_idP, int CC_idP, rnti_t rntiP);
int add_new_nr_ue(module_id_t mod_idP, rnti_t rntiP, NR_CellGroupConfig_t *secondaryCellGroup);
int add_new_nr_ue(module_id_t mod_idP, rnti_t rntiP, NR_CellGroupConfig_t *secondaryCellGroup, bool isConnected);
void mac_remove_nr_ue(module_id_t mod_id, rnti_t rnti);
......@@ -352,6 +356,27 @@ void nr_generate_Msg2(module_id_t module_idP,
frame_t frameP,
sub_frame_t slotP);
void nr_generate_Msg4(module_id_t module_id,
int CC_id,
frame_t frame,
sub_frame_t slot);
void nr_check_Msg4_Ack(module_id_t module_id,
int CC_id,
frame_t frame,
sub_frame_t slot);
bool allocate_retransmission(module_id_t module_id,
uint8_t *rballoc_mask,
int *n_rb_sched,
int UE_id,
int current_harq_pid);
uint8_t getN_PRB_DMRS(NR_BWP_Downlink_t *bwp, int numDmrsCdmGrpsNoData);
nfapi_nr_dmrs_type_e getDmrsConfigType(NR_BWP_Downlink_t *bwp);
int nr_write_ce_dlsch_pdu(module_id_t module_idP,
const NR_UE_sched_ctrl_t *ue_sched_ctl,
unsigned char *mac_pdu,
unsigned char drx_cmd,
unsigned char *ue_cont_res_id);
int getNrOfSymbols(NR_BWP_Downlink_t *bwp, int tda);
void nr_process_mac_pdu(
module_id_t module_idP,
rnti_t rnti,
......
openair2/LAYER2/NR_MAC_gNB/main.c
View file @ 44fef7f3
......@@ -85,8 +85,9 @@ void mac_top_init_gNB(void)
RC.nrmac[i]->pre_processor_dl = nr_preprocessor_phytest;
RC.nrmac[i]->pre_processor_ul = nr_ul_preprocessor_phytest;
} else {
RC.nrmac[i]->pre_processor_dl = nr_simple_dlsch_preprocessor;
RC.nrmac[i]->pre_processor_ul = nr_simple_ulsch_preprocessor;
RC.nrmac[i]->pre_processor_dl = nr_simple_dlsch_preprocessor;
RC.nrmac[i]->pre_processor_dl_msg4 = nr_simple_dlsch_preprocessor_msg4;
RC.nrmac[i]->pre_processor_ul = nr_simple_ulsch_preprocessor;
}
}//END for (i = 0; i < RC.nb_nr_macrlc_inst; i++)
......@@ -116,6 +117,7 @@ void mac_top_init_gNB(void)
create_nr_list(&UE_info->list, MAX_MOBILES_PER_GNB);
for (list_el = 0; list_el < MAX_MOBILES_PER_GNB; list_el++) {
UE_info->active[list_el] = false;
UE_info->connected[list_el] = false;
}
}
......
openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h
View file @ 44fef7f3
......@@ -501,6 +501,7 @@ typedef struct {
int num_UEs;
bool active[MAX_MOBILES_PER_GNB];
bool connected[MAX_MOBILES_PER_GNB]; // reuse active or not for ue status?
rnti_t rnti[MAX_MOBILES_PER_GNB];
NR_CellGroupConfig_t *secondaryCellGroup[MAX_MOBILES_PER_GNB];
/// CCE indexing
......@@ -596,6 +597,7 @@ typedef struct gNB_MAC_INST_s {
/// DL preprocessor for differentiated scheduling
nr_pp_impl_dl pre_processor_dl;
nr_pp_impl_dl pre_processor_dl_msg4;
/// UL preprocessor for differentiated scheduling
nr_pp_impl_ul pre_processor_ul;
......
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