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implementation of scheduling of msg3 retransmission at gnb

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This commit is contained in:
francescomani
2021-08-13 11:13:16 +02:00
parent efc696cce9
commit 59413c184d
5 changed files with 339 additions and 122 deletions
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openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c
+319 -116
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@@ -545,7 +545,7 @@ void nr_initiate_ra_proc(module_id_t module_idP,
if (ra->CellGroup && ra->CellGroup->spCellConfig && ra->CellGroup->spCellConfig->spCellConfigDedicated &&
ra->CellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList) {
ra->bwp_id = 1;
bwp = ra->CellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.array[ra->bwp_id - 1];
bwp = ra->CellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.array[ra->bwp_id - 1];
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_INITIATE_RA_PROC, 1);
@@ -653,33 +653,216 @@ void nr_initiate_ra_proc(module_id_t module_idP,
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_INITIATE_RA_PROC, 0);
}
void nr_schedule_RA(module_id_t module_idP, frame_t frameP, sub_frame_t slotP)
{
gNB_MAC_INST *mac = RC.nrmac[module_idP];
void nr_schedule_RA(module_id_t module_idP, frame_t frameP, sub_frame_t slotP) {
start_meas(&mac->schedule_ra);
for (int CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
NR_COMMON_channels_t *cc = &mac->common_channels[CC_id];
for (int i = 0; i < NR_NB_RA_PROC_MAX; i++) {
NR_RA_t *ra = &cc->ra[i];
LOG_D(NR_MAC, "RA[state:%d]\n", ra->state);
switch (ra->state) {
case Msg2:
nr_generate_Msg2(module_idP, CC_id, frameP, slotP, ra);
break;
case Msg4:
nr_generate_Msg4(module_idP, CC_id, frameP, slotP, ra);
break;
case WAIT_Msg4_ACK:
nr_check_Msg4_Ack(module_idP, CC_id, frameP, slotP, ra);
break;
default:
break;
}
gNB_MAC_INST *mac = RC.nrmac[module_idP];
start_meas(&mac->schedule_ra);
for (int CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
NR_COMMON_channels_t *cc = &mac->common_channels[CC_id];
for (int i = 0; i < NR_NB_RA_PROC_MAX; i++) {
NR_RA_t *ra = &cc->ra[i];
LOG_D(NR_MAC, "RA[state:%d]\n", ra->state);
switch (ra->state) {
case Msg2:
nr_generate_Msg2(module_idP, CC_id, frameP, slotP, ra);
break;
case Msg3_retransmission:
nr_generate_Msg3_retransmission(module_idP, CC_id, frameP, slotP, ra);
break;
case Msg4:
nr_generate_Msg4(module_idP, CC_id, frameP, slotP, ra);
break;
case WAIT_Msg4_ACK:
nr_check_Msg4_Ack(module_idP, CC_id, frameP, slotP, ra);
break;
default:
break;
}
}
stop_meas(&mac->schedule_ra);
}
stop_meas(&mac->schedule_ra);
}
void nr_generate_Msg3_retransmission(module_id_t module_idP, int CC_id, frame_t frame, sub_frame_t slot, NR_RA_t *ra) {
gNB_MAC_INST *nr_mac = RC.nrmac[module_idP];
NR_COMMON_channels_t *cc = &nr_mac->common_channels[CC_id];
NR_ServingCellConfigCommon_t *scc = cc->ServingCellConfigCommon;
NR_BWP_Uplink_t *ubwp = ra->CellGroup ?
ra->CellGroup->spCellConfig->spCellConfigDedicated->uplinkConfig->uplinkBWP_ToAddModList->list.array[ra->bwp_id-1] :
NULL;
NR_PUSCH_TimeDomainResourceAllocationList_t *pusch_TimeDomainAllocationList= ubwp ?
ubwp->bwp_Common->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList:
scc->uplinkConfigCommon->initialUplinkBWP->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList;
int mu = ubwp ?
ubwp->bwp_Common->genericParameters.subcarrierSpacing :
scc->uplinkConfigCommon->initialUplinkBWP->genericParameters.subcarrierSpacing;
uint8_t K2 = *pusch_TimeDomainAllocationList->list.array[ra->Msg3_tda_id]->k2;
const int sched_frame = frame + (slot + K2 >= nr_slots_per_frame[mu]);
const int sched_slot = (slot + K2) % nr_slots_per_frame[mu];
if (is_xlsch_in_slot(RC.nrmac[module_idP]->ulsch_slot_bitmap[sched_slot / 64], sched_slot)) {
// beam association for FR2
int16_t *tdd_beam_association = nr_mac->tdd_beam_association;
if (*scc->downlinkConfigCommon->frequencyInfoDL->frequencyBandList.list.array[0] >= 257) {
uint8_t tdd_period_slot = scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofDownlinkSlots + scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofUplinkSlots;
if ((scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofDownlinkSymbols > 0) || (scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofUplinkSymbols > 0))
tdd_period_slot++;
int num_tdd_period = sched_slot/tdd_period_slot;
if((tdd_beam_association[num_tdd_period]!=-1)&&(tdd_beam_association[num_tdd_period]!=ra->beam_id))
return; // can't schedule retransmission in this slot
else
tdd_beam_association[num_tdd_period] = ra->beam_id;
}
int bwpSize = NRRIV2BW(scc->uplinkConfigCommon->initialUplinkBWP->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
int bwpStart = NRRIV2PRBOFFSET(scc->uplinkConfigCommon->initialUplinkBWP->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
int scs = scc->uplinkConfigCommon->initialUplinkBWP->genericParameters.subcarrierSpacing;
int fh = 0;
int startSymbolAndLength = scc->uplinkConfigCommon->initialUplinkBWP->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList->list.array[ra->Msg3_tda_id]->startSymbolAndLength;
int mappingtype = scc->uplinkConfigCommon->initialUplinkBWP->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList->list.array[ra->Msg3_tda_id]->mappingType;
if (ra->CellGroup) {
AssertFatal(ra->CellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.count == 1,
"downlinkBWP_ToAddModList has %d BWP!\n", ra->CellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.count);
int act_bwp_start = NRRIV2PRBOFFSET(ubwp->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
int act_bwp_size = NRRIV2BW(ubwp->bwp_Common->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
startSymbolAndLength = ubwp->bwp_Common->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList->list.array[ra->Msg3_tda_id]->startSymbolAndLength;
mappingtype = ubwp->bwp_Common->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList->list.array[ra->Msg3_tda_id]->mappingType;
scs = ubwp->bwp_Common->genericParameters.subcarrierSpacing;
fh = ubwp->bwp_Dedicated->pusch_Config->choice.setup->frequencyHopping ? 1 : 0;
if ((bwpStart < act_bwp_start) || (bwpSize > act_bwp_size))
bwpStart = act_bwp_start;
}
uint16_t *vrb_map_UL =
&RC.nrmac[module_idP]->common_channels[CC_id].vrb_map_UL[sched_slot * MAX_BWP_SIZE];
int rbStart = 0;
for (int i = 0; (i < ra->msg3_nb_rb) && (rbStart <= (bwpSize - ra->msg3_nb_rb)); i++) {
if (vrb_map_UL[rbStart + bwpStart + i]) {
rbStart += i;
i = 0;
}
}
if (rbStart > (bwpSize - ra->msg3_nb_rb)) {
// cannot find free vrb_map for msg3 retransmission in this slot
return;
}
LOG_I(NR_MAC, "[gNB %d][RAPROC] Frame %d, Slot %d : CC_id %d Scheduling retransmission of Msg3 in (%d,%d)\n",
module_idP, frame, slot, CC_id, sched_frame, sched_slot);
nfapi_nr_ul_tti_request_t *future_ul_tti_req = &RC.nrmac[module_idP]->UL_tti_req_ahead[CC_id][sched_slot];
AssertFatal(future_ul_tti_req->SFN == sched_frame
&& future_ul_tti_req->Slot == sched_slot,
"future UL_tti_req's frame.slot %d.%d does not match PUSCH %d.%d\n",
future_ul_tti_req->SFN,
future_ul_tti_req->Slot,
sched_frame,
sched_slot);
future_ul_tti_req->pdus_list[future_ul_tti_req->n_pdus].pdu_type = NFAPI_NR_UL_CONFIG_PUSCH_PDU_TYPE;
future_ul_tti_req->pdus_list[future_ul_tti_req->n_pdus].pdu_size = sizeof(nfapi_nr_pusch_pdu_t);
nfapi_nr_pusch_pdu_t *pusch_pdu = &future_ul_tti_req->pdus_list[future_ul_tti_req->n_pdus].pusch_pdu;
memset(pusch_pdu, 0, sizeof(nfapi_nr_pusch_pdu_t));
fill_msg3_pusch_pdu(pusch_pdu, scc,
startSymbolAndLength,
ra->rnti, scs,
bwpSize, bwpStart,
mappingtype, fh,
rbStart, ra->msg3_nb_rb);
future_ul_tti_req->n_pdus += 1;
// generation of DCI 0_0 to schedule msg3 retransmission
NR_SearchSpace_t *ss = ra->ra_ss;
NR_BWP_Downlink_t *bwp = NULL;
NR_ControlResourceSet_t *coreset = NULL;
if (ra->CellGroup &&
ra->CellGroup->spCellConfig &&
ra->CellGroup->spCellConfig->spCellConfigDedicated &&
ra->CellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList &&
ra->CellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.array[ra->bwp_id-1])
bwp = ra->CellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.array[ra->bwp_id-1];
coreset = get_coreset(scc, bwp, ss, NR_SearchSpace__searchSpaceType_PR_common);
AssertFatal(coreset!=NULL,"Coreset cannot be null for RA-Msg3 retransmission\n");
nfapi_nr_ul_dci_request_t *ul_dci_req = &nr_mac->UL_dci_req[CC_id];
const int coresetid = coreset->controlResourceSetId;
nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15 = nr_mac->pdcch_pdu_idx[CC_id][ra->bwp_id][coresetid];
if (!pdcch_pdu_rel15) {
nfapi_nr_ul_dci_request_pdus_t *ul_dci_request_pdu = &ul_dci_req->ul_dci_pdu_list[ul_dci_req->numPdus];
memset(ul_dci_request_pdu, 0, sizeof(nfapi_nr_ul_dci_request_pdus_t));
ul_dci_request_pdu->PDUType = NFAPI_NR_DL_TTI_PDCCH_PDU_TYPE;
ul_dci_request_pdu->PDUSize = (uint8_t)(2+sizeof(nfapi_nr_dl_tti_pdcch_pdu));
pdcch_pdu_rel15 = &ul_dci_request_pdu->pdcch_pdu.pdcch_pdu_rel15;
ul_dci_req->numPdus += 1;
nr_configure_pdcch(pdcch_pdu_rel15, ss, coreset, scc, bwp);
nr_mac->pdcch_pdu_idx[CC_id][ra->bwp_id][coresetid] = pdcch_pdu_rel15;
}
uint8_t aggregation_level;
uint8_t nr_of_candidates;
find_aggregation_candidates(&aggregation_level, &nr_of_candidates, ss);
int CCEIndex = allocate_nr_CCEs(nr_mac, bwp, coreset, aggregation_level, 0, 0, nr_of_candidates);
if (CCEIndex < 0) {
LOG_E(NR_MAC, "%s(): cannot find free CCE for RA RNTI %04x!\n", __func__, ra->rnti);
return;
}
// Fill PDCCH DL DCI PDU
nfapi_nr_dl_dci_pdu_t *dci_pdu = &pdcch_pdu_rel15->dci_pdu[pdcch_pdu_rel15->numDlDci];
pdcch_pdu_rel15->numDlDci++;
dci_pdu->RNTI = ra->rnti;
dci_pdu->ScramblingId = *scc->physCellId;
dci_pdu->ScramblingRNTI = 0;
dci_pdu->AggregationLevel = aggregation_level;
dci_pdu->CceIndex = CCEIndex;
dci_pdu->beta_PDCCH_1_0 = 0;
dci_pdu->powerControlOffsetSS = 1;
dci_pdu_rel15_t uldci_payload;
memset(&uldci_payload, 0, sizeof(uldci_payload));
config_uldci(ubwp,
scc,
pusch_pdu,
&uldci_payload,
NR_UL_DCI_FORMAT_0_0,
ra->Msg3_tda_id,
ra->msg3_TPC,
0, // not used in format 0_0
ra->bwp_id);
fill_dci_pdu_rel15(scc,
ra->CellGroup,
dci_pdu,
&uldci_payload,
NR_UL_DCI_FORMAT_0_0,
NR_RNTI_TC,
pusch_pdu->bwp_size,
ra->bwp_id);
// Mark the corresponding RBs as used
for (int rb = 0; rb < ra->msg3_nb_rb; rb++) {
vrb_map_UL[rbStart + bwpStart + rb] = 1;
}
// reset state to wait msg3
ra->state = WAIT_Msg3;
}
}
void nr_get_Msg3alloc(module_id_t module_id,
int CC_id,
@@ -690,45 +873,45 @@ void nr_get_Msg3alloc(module_id_t module_id,
NR_RA_t *ra,
int16_t *tdd_beam_association) {
// msg3 is schedulend in mixed slot in the following TDD period
// msg3 is scheduled in mixed slot in the following TDD period
uint16_t msg3_nb_rb = 8 + sizeof(NR_MAC_SUBHEADER_SHORT) + sizeof(NR_MAC_SUBHEADER_SHORT); // sdu has 6 or 8 bytes
uint16_t msg3_nb_rb = 8 + sizeof(NR_MAC_SUBHEADER_SHORT) + sizeof(NR_MAC_SUBHEADER_SHORT); // sdu has 6 or 8 bytes
int mu = ubwp ?
ubwp->bwp_Common->genericParameters.subcarrierSpacing :
scc->uplinkConfigCommon->initialUplinkBWP->genericParameters.subcarrierSpacing;
int StartSymbolIndex = 0;
int NrOfSymbols = 0;
int startSymbolAndLength = 0;
int temp_slot = 0;
ra->Msg3_tda_id = 16; // initialization to a value above limit
int mu = ubwp ?
ubwp->bwp_Common->genericParameters.subcarrierSpacing :
scc->uplinkConfigCommon->initialUplinkBWP->genericParameters.subcarrierSpacing;
int StartSymbolIndex = 0;
int NrOfSymbols = 0;
int startSymbolAndLength = 0;
int temp_slot = 0;
ra->Msg3_tda_id = 16; // initialization to a value above limit
NR_PUSCH_TimeDomainResourceAllocationList_t *pusch_TimeDomainAllocationList= ubwp ?
ubwp->bwp_Common->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList:
scc->uplinkConfigCommon->initialUplinkBWP->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList;
NR_PUSCH_TimeDomainResourceAllocationList_t *pusch_TimeDomainAllocationList= ubwp ?
ubwp->bwp_Common->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList:
scc->uplinkConfigCommon->initialUplinkBWP->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList;
uint8_t k2 = 0;
for (int i=0; i<pusch_TimeDomainAllocationList->list.count; i++) {
startSymbolAndLength = pusch_TimeDomainAllocationList->list.array[i]->startSymbolAndLength;
SLIV2SL(startSymbolAndLength, &StartSymbolIndex, &NrOfSymbols);
// we want to transmit in the uplink symbols of mixed slot
if (NrOfSymbols == scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofUplinkSymbols) {
k2 = *pusch_TimeDomainAllocationList->list.array[i]->k2;
temp_slot = current_slot + k2 + DELTA[mu]; // msg3 slot according to 8.3 in 38.213
ra->Msg3_slot = temp_slot%nr_slots_per_frame[mu];
if (is_xlsch_in_slot(RC.nrmac[module_id]->ulsch_slot_bitmap[ra->Msg3_slot / 64], ra->Msg3_slot)) {
ra->Msg3_tda_id = i;
break;
}
uint8_t k2 = 0;
for (int i=0; i<pusch_TimeDomainAllocationList->list.count; i++) {
startSymbolAndLength = pusch_TimeDomainAllocationList->list.array[i]->startSymbolAndLength;
SLIV2SL(startSymbolAndLength, &StartSymbolIndex, &NrOfSymbols);
// we want to transmit in the uplink symbols of mixed slot
if (NrOfSymbols == scc->tdd_UL_DL_ConfigurationCommon->pattern1.nrofUplinkSymbols) {
k2 = *pusch_TimeDomainAllocationList->list.array[i]->k2;
temp_slot = current_slot + k2 + DELTA[mu]; // msg3 slot according to 8.3 in 38.213
ra->Msg3_slot = temp_slot%nr_slots_per_frame[mu];
if (is_xlsch_in_slot(RC.nrmac[module_id]->ulsch_slot_bitmap[ra->Msg3_slot / 64], ra->Msg3_slot)) {
ra->Msg3_tda_id = i;
break;
}
}
}
AssertFatal(ra->Msg3_tda_id<16,"Unable to find Msg3 time domain allocation in list\n");
AssertFatal(ra->Msg3_tda_id<16,"Unable to find Msg3 time domain allocation in list\n");
if (nr_slots_per_frame[mu]>temp_slot)
ra->Msg3_frame = current_frame;
else
ra->Msg3_frame = (current_frame + (temp_slot/nr_slots_per_frame[mu]))%1024;
if (nr_slots_per_frame[mu]>temp_slot)
ra->Msg3_frame = current_frame;
else
ra->Msg3_frame = (current_frame + (temp_slot/nr_slots_per_frame[mu]))%1024;
// beam association for FR2
if (*scc->downlinkConfigCommon->frequencyInfoDL->frequencyBandList.list.array[0] >= 257) {
@@ -750,7 +933,7 @@ void nr_get_Msg3alloc(module_id_t module_id,
scc->uplinkConfigCommon->initialUplinkBWP->genericParameters.locationAndBandwidth,
MAX_BWP_SIZE);
/* search msg3_nb_rb free RBs */
/* search msg3_nb_rb free RBs */
int rbSize = 0;
int rbStart = 0;
while (rbSize < msg3_nb_rb) {
@@ -768,6 +951,74 @@ void nr_get_Msg3alloc(module_id_t module_id,
ra->msg3_first_rb = rbStart;
}
void fill_msg3_pusch_pdu(nfapi_nr_pusch_pdu_t *pusch_pdu,
NR_ServingCellConfigCommon_t *scc,
int startSymbolAndLength,
rnti_t rnti, int scs,
int bwp_size, int bwp_start,
int mappingtype, int fh,
int msg3_first_rb, int msg3_nb_rb) {
int start_symbol_index,nr_of_symbols;
SLIV2SL(startSymbolAndLength, &start_symbol_index, &nr_of_symbols);
pusch_pdu->pdu_bit_map = PUSCH_PDU_BITMAP_PUSCH_DATA;
pusch_pdu->rnti = rnti;
pusch_pdu->handle = 0;
pusch_pdu->bwp_start = bwp_start;
pusch_pdu->bwp_size = bwp_size;
pusch_pdu->subcarrier_spacing = scs;
pusch_pdu->cyclic_prefix = 0;
pusch_pdu->mcs_index = 0;
pusch_pdu->mcs_table = 0;
pusch_pdu->target_code_rate = nr_get_code_rate_ul(pusch_pdu->mcs_index,pusch_pdu->mcs_table);
pusch_pdu->qam_mod_order = nr_get_Qm_ul(pusch_pdu->mcs_index,pusch_pdu->mcs_table);
if (scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->msg3_transformPrecoder == NULL)
pusch_pdu->transform_precoding = 1;
else
pusch_pdu->transform_precoding = 0;
pusch_pdu->data_scrambling_id = *scc->physCellId;
pusch_pdu->nrOfLayers = 1;
pusch_pdu->ul_dmrs_symb_pos = get_l_prime(nr_of_symbols,mappingtype,pusch_dmrs_pos2,pusch_len1,start_symbol_index, scc->dmrs_TypeA_Position);
LOG_D(MAC, "MSG3 start_sym:%d NR Symb:%d mappingtype:%d , ul_dmrs_symb_pos:%x\n", start_symbol_index, nr_of_symbols, mappingtype, pusch_pdu->ul_dmrs_symb_pos);
pusch_pdu->dmrs_config_type = 0;
pusch_pdu->ul_dmrs_scrambling_id = *scc->physCellId; //If provided and the PUSCH is not a msg3 PUSCH, otherwise, L2 should set this to physical cell id.
pusch_pdu->scid = 0; //DMRS sequence initialization [TS38.211, sec 6.4.1.1.1]. Should match what is sent in DCI 0_1, otherwise set to 0.
pusch_pdu->dmrs_ports = 1; // 6.2.2 in 38.214 only port 0 to be used
pusch_pdu->num_dmrs_cdm_grps_no_data = 2; // no data in dmrs symbols as in 6.2.2 in 38.214
pusch_pdu->resource_alloc = 1; //type 1
pusch_pdu->rb_start = msg3_first_rb;
if (msg3_nb_rb > pusch_pdu->bwp_size)
AssertFatal(1==0,"MSG3 allocated number of RBs exceed the BWP size\n");
else
pusch_pdu->rb_size = msg3_nb_rb;
pusch_pdu->vrb_to_prb_mapping = 0;
pusch_pdu->frequency_hopping = fh;
//pusch_pdu->tx_direct_current_location;//The uplink Tx Direct Current location for the carrier. Only values in the value range of this field between 0 and 3299, which indicate the subcarrier index within the carrier corresponding 1o the numerology of the corresponding uplink BWP and value 3300, which indicates "Outside the carrier" and value 3301, which indicates "Undetermined position within the carrier" are used. [TS38.331, UplinkTxDirectCurrentBWP IE]
pusch_pdu->uplink_frequency_shift_7p5khz = 0;
//Resource Allocation in time domain
pusch_pdu->start_symbol_index = start_symbol_index;
pusch_pdu->nr_of_symbols = nr_of_symbols;
//Optional Data only included if indicated in pduBitmap
pusch_pdu->pusch_data.rv_index = 0; // 8.3 in 38.213
pusch_pdu->pusch_data.harq_process_id = 0;
pusch_pdu->pusch_data.new_data_indicator = 1; // new data
pusch_pdu->pusch_data.num_cb = 0;
pusch_pdu->pusch_data.tb_size = nr_compute_tbs(pusch_pdu->qam_mod_order,
pusch_pdu->target_code_rate,
pusch_pdu->rb_size,
pusch_pdu->nr_of_symbols,
12, // nb dmrs set for no data in dmrs symbol
0, //nb_rb_oh
0, // to verify tb scaling
pusch_pdu->nrOfLayers)>>3;
}
void nr_add_msg3(module_id_t module_idP, int CC_id, frame_t frameP, sub_frame_t slotP, NR_RA_t *ra, uint8_t *RAR_pdu)
{
gNB_MAC_INST *mac = RC.nrmac[module_idP];
@@ -790,7 +1041,7 @@ void nr_add_msg3(module_id_t module_idP, int CC_id, frame_t frameP, sub_frame_t
vrb_map_UL[i + ra->msg3_first_rb] = 1;
}
LOG_D(NR_MAC, "[gNB %d][RAPROC] Frame %d, Subframe %d : CC_id %d RA is active, Msg3 in (%d,%d)\n", module_idP, frameP, slotP, CC_id, ra->Msg3_frame, ra->Msg3_slot);
LOG_D(NR_MAC, "[gNB %d][RAPROC] Frame %d, Slot %d : CC_id %d RA is active, Msg3 in (%d,%d)\n", module_idP, frameP, slotP, CC_id, ra->Msg3_frame, ra->Msg3_slot);
nfapi_nr_ul_tti_request_t *future_ul_tti_req = &RC.nrmac[module_idP]->UL_tti_req_ahead[CC_id][ra->Msg3_slot];
AssertFatal(future_ul_tti_req->SFN == ra->Msg3_frame
@@ -804,7 +1055,7 @@ void nr_add_msg3(module_id_t module_idP, int CC_id, frame_t frameP, sub_frame_t
future_ul_tti_req->pdus_list[future_ul_tti_req->n_pdus].pdu_size = sizeof(nfapi_nr_pusch_pdu_t);
nfapi_nr_pusch_pdu_t *pusch_pdu = &future_ul_tti_req->pdus_list[future_ul_tti_req->n_pdus].pusch_pdu;
memset(pusch_pdu, 0, sizeof(nfapi_nr_pusch_pdu_t));
future_ul_tti_req->n_pdus += 1;
int ibwp_size = NRRIV2BW(scc->uplinkConfigCommon->initialUplinkBWP->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
int ibwp_start = NRRIV2PRBOFFSET(scc->uplinkConfigCommon->initialUplinkBWP->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
int abwp_size = ibwp_size;
@@ -837,67 +1088,19 @@ void nr_add_msg3(module_id_t module_idP, int CC_id, frame_t frameP, sub_frame_t
ra->msg3_round,
ra->rnti);
int start_symbol_index,nr_of_symbols;
SLIV2SL(startSymbolAndLength, &start_symbol_index, &nr_of_symbols);
pusch_pdu->pdu_bit_map = PUSCH_PDU_BITMAP_PUSCH_DATA;
pusch_pdu->rnti = ra->rnti;
pusch_pdu->handle = 0;
int bwp_start;
if ((ibwp_start < abwp_start) || (ibwp_size > abwp_size))
pusch_pdu->bwp_start = abwp_start;
bwp_start = abwp_start;
else
pusch_pdu->bwp_start = ibwp_start;
pusch_pdu->bwp_size = ibwp_size;
pusch_pdu->subcarrier_spacing = scs;
pusch_pdu->cyclic_prefix = 0;
pusch_pdu->mcs_index = 0;
pusch_pdu->mcs_table = 0;
pusch_pdu->target_code_rate = nr_get_code_rate_ul(pusch_pdu->mcs_index,pusch_pdu->mcs_table);
pusch_pdu->qam_mod_order = nr_get_Qm_ul(pusch_pdu->mcs_index,pusch_pdu->mcs_table);
if (scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->msg3_transformPrecoder == NULL)
pusch_pdu->transform_precoding = 1;
else
pusch_pdu->transform_precoding = 0;
pusch_pdu->data_scrambling_id = *scc->physCellId;
pusch_pdu->nrOfLayers = 1;
bwp_start = ibwp_start;
pusch_pdu->ul_dmrs_symb_pos = get_l_prime(nr_of_symbols,mappingtype,pusch_dmrs_pos2,pusch_len1,start_symbol_index, scc->dmrs_TypeA_Position);
LOG_D(MAC, "MSG3 start_sym:%d NR Symb:%d mappingtype:%d , ul_dmrs_symb_pos:%x\n", start_symbol_index, nr_of_symbols, mappingtype, pusch_pdu->ul_dmrs_symb_pos);
pusch_pdu->dmrs_config_type = 0;
pusch_pdu->ul_dmrs_scrambling_id = *scc->physCellId; //If provided and the PUSCH is not a msg3 PUSCH, otherwise, L2 should set this to physical cell id.
pusch_pdu->scid = 0; //DMRS sequence initialization [TS38.211, sec 6.4.1.1.1]. Should match what is sent in DCI 0_1, otherwise set to 0.
pusch_pdu->dmrs_ports = 1; // 6.2.2 in 38.214 only port 0 to be used
pusch_pdu->num_dmrs_cdm_grps_no_data = 2; // no data in dmrs symbols as in 6.2.2 in 38.214
pusch_pdu->resource_alloc = 1; //type 1
//pusch_pdu->rb_start = ra->msg3_first_rb + ibwp_start - abwp_start; // as for 6.3.1.7 in 38.211
pusch_pdu->rb_start = ra->msg3_first_rb;
if (ra->msg3_nb_rb > pusch_pdu->bwp_size)
AssertFatal(1==0,"MSG3 allocated number of RBs exceed the BWP size\n");
else
pusch_pdu->rb_size = ra->msg3_nb_rb;
pusch_pdu->vrb_to_prb_mapping = 0;
pusch_pdu->frequency_hopping = fh;
//pusch_pdu->tx_direct_current_location;//The uplink Tx Direct Current location for the carrier. Only values in the value range of this field between 0 and 3299, which indicate the subcarrier index within the carrier corresponding 1o the numerology of the corresponding uplink BWP and value 3300, which indicates "Outside the carrier" and value 3301, which indicates "Undetermined position within the carrier" are used. [TS38.331, UplinkTxDirectCurrentBWP IE]
pusch_pdu->uplink_frequency_shift_7p5khz = 0;
//Resource Allocation in time domain
pusch_pdu->start_symbol_index = start_symbol_index;
pusch_pdu->nr_of_symbols = nr_of_symbols;
//Optional Data only included if indicated in pduBitmap
pusch_pdu->pusch_data.rv_index = 0; // 8.3 in 38.213
pusch_pdu->pusch_data.harq_process_id = 0;
pusch_pdu->pusch_data.new_data_indicator = 1; // new data
pusch_pdu->pusch_data.num_cb = 0;
pusch_pdu->pusch_data.tb_size = nr_compute_tbs(pusch_pdu->qam_mod_order,
pusch_pdu->target_code_rate,
pusch_pdu->rb_size,
pusch_pdu->nr_of_symbols,
12, // nb dmrs set for no data in dmrs symbol
0, //nb_rb_oh
0, // to verify tb scaling
pusch_pdu->nrOfLayers = 1)>>3;
fill_msg3_pusch_pdu(pusch_pdu,scc,
startSymbolAndLength,
ra->rnti, scs,
ibwp_size, bwp_start,
mappingtype, fh,
ra->msg3_first_rb, ra->msg3_nb_rb);
future_ul_tti_req->n_pdus += 1;
// calling function to fill rar message
nr_fill_rar(module_idP, ra, RAR_pdu, pusch_pdu);
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
+1
View File
@@ -607,6 +607,7 @@ void config_uldci(const NR_BWP_Uplink_t *ubwp,
uint8_t tpc,
int n_ubwp,
int bwp_id) {
const int bw = NRRIV2BW(ubwp ?
ubwp->bwp_Common->genericParameters.locationAndBandwidth :
scc->uplinkConfigCommon->initialUplinkBWP->genericParameters.locationAndBandwidth, MAX_BWP_SIZE);
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c
+6 -4
View File
@@ -523,7 +523,6 @@ void handle_nr_ul_harq(module_id_t mod_id,
}
NR_UE_info_t *UE_info = &RC.nrmac[mod_id]->UE_info;
NR_UE_sched_ctrl_t *sched_ctrl = &UE_info->UE_sched_ctrl[UE_id];
int8_t harq_pid = sched_ctrl->feedback_ul_harq.head;
while (crc_pdu->harq_id != harq_pid || harq_pid < 0) {
LOG_W(NR_MAC,
@@ -586,6 +585,7 @@ void nr_rx_sdu(const module_id_t gnb_mod_idP,
const uint16_t timing_advance,
const uint8_t ul_cqi,
const uint16_t rssi){
gNB_MAC_INST *gNB_mac = RC.nrmac[gnb_mod_idP];
NR_UE_info_t *UE_info = &gNB_mac->UE_info;
@@ -784,9 +784,11 @@ void nr_rx_sdu(const module_id_t gnb_mod_idP,
if (ra->state != WAIT_Msg3)
continue;
LOG_W(NR_MAC, "Random Access %i failed at state %i (state is not WAIT_Msg3)\n", i, ra->state);
nr_mac_remove_ra_rnti(gnb_mod_idP, ra->rnti);
nr_clear_ra_proc(gnb_mod_idP, CC_idP, frameP, ra);
if( (frameP!=ra->Msg3_frame) || (slotP!=ra->Msg3_slot))
continue;
LOG_W(NR_MAC, "Random Access %i failed at state %i (CRC did not pass)\n", i, ra->state);
ra->state = Msg3_retransmission;
}
}
}
openair2/LAYER2/NR_MAC_gNB/mac_proto.h
+10
View File
@@ -124,6 +124,8 @@ void nr_get_Msg3alloc(module_id_t module_id,
NR_RA_t *ra,
int16_t *tdd_beam_association);
void nr_generate_Msg3_retransmission(module_id_t module_idP, int CC_id, frame_t frameP, sub_frame_t slotP, NR_RA_t *ra);
/* \brief Function in gNB to fill RAR pdu when requested by PHY.
@param ra Instance of RA resources of gNB
@param dlsch_buffer Pointer to RAR input buffer
@@ -134,6 +136,14 @@ void nr_fill_rar(uint8_t Mod_idP,
uint8_t * dlsch_buffer,
nfapi_nr_pusch_pdu_t *pusch_pdu);
void fill_msg3_pusch_pdu(nfapi_nr_pusch_pdu_t *pusch_pdu,
NR_ServingCellConfigCommon_t *scc,
int startSymbolAndLength,
rnti_t rnti, int scs,
int bwp_size, int bwp_start,
int mappingtype, int fh,
int msg3_first_rb, int msg3_nb_rb);
void schedule_nr_prach(module_id_t module_idP, frame_t frameP, sub_frame_t slotP);
openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h
+3 -2
View File
@@ -93,8 +93,9 @@ typedef enum {
RA_IDLE = 0,
Msg2 = 1,
WAIT_Msg3 = 2,
Msg4 = 3,
WAIT_Msg4_ACK = 4
Msg3_retransmission = 3,
Msg4 = 4,
WAIT_Msg4_ACK = 5
} RA_gNB_state_t;
typedef struct NR_preamble_ue {