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Commit 5edee9b5 authored by Raghavendra Dinavahi's avatar Raghavendra Dinavahi Committed by Thomas Schlichter
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Mapping type A enabled in PUSCH dmrs mask calculation 

	- Procedure get_l_prime is modified
	- Single and double symbol DMRS are handled in Type A and Type B
parent e658023f
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Showing with 81 additions and 48 deletions
openair1/SIMULATION/NR_PHY/ulsim.c
View file @ 5edee9b5
......@@ -808,7 +808,7 @@ int main(int argc, char **argv)
}
uint8_t length_dmrs = pusch_len1;
uint16_t l_prime_mask = get_l_prime(nb_symb_sch, mapping_type, add_pos, length_dmrs);
uint16_t l_prime_mask = get_l_prime(nb_symb_sch, mapping_type, add_pos, length_dmrs, start_symbol, NR_MIB__dmrs_TypeA_Position_pos2);
uint16_t number_dmrs_symbols = get_dmrs_symbols_in_slot(l_prime_mask, nb_symb_sch);
uint8_t nb_re_dmrs = (dmrs_config_type == pusch_dmrs_type1) ? 6 : 4;
......@@ -994,7 +994,7 @@ int main(int argc, char **argv)
pusch_pdu->transform_precoding = transform_precoding;
pusch_pdu->data_scrambling_id = *scc->physCellId;
pusch_pdu->nrOfLayers = 1;
pusch_pdu->ul_dmrs_symb_pos = l_prime_mask << start_symbol;
pusch_pdu->ul_dmrs_symb_pos = l_prime_mask;
pusch_pdu->dmrs_config_type = dmrs_config_type;
pusch_pdu->ul_dmrs_scrambling_id = *scc->physCellId;
pusch_pdu->scid = 0;
......@@ -1057,7 +1057,7 @@ int main(int argc, char **argv)
ul_config.ul_config_list[0].pusch_config_pdu.rb_start = start_rb;
ul_config.ul_config_list[0].pusch_config_pdu.nr_of_symbols = nb_symb_sch;
ul_config.ul_config_list[0].pusch_config_pdu.start_symbol_index = start_symbol;
ul_config.ul_config_list[0].pusch_config_pdu.ul_dmrs_symb_pos = l_prime_mask << start_symbol;
ul_config.ul_config_list[0].pusch_config_pdu.ul_dmrs_symb_pos = l_prime_mask;
ul_config.ul_config_list[0].pusch_config_pdu.dmrs_config_type = dmrs_config_type;
ul_config.ul_config_list[0].pusch_config_pdu.mcs_index = Imcs;
ul_config.ul_config_list[0].pusch_config_pdu.mcs_table = mcs_table;
......
openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c
View file @ 5edee9b5
......@@ -1777,17 +1777,17 @@ int32_t table_7_4_1_1_2_4_pdsch_dmrs_positions_l [12][8] = {
int32_t table_6_4_1_1_3_3_pusch_dmrs_positions_l [12][8] = { // Duration in symbols
{-1, -1, -1, -1, 1, 1, 1, 1}, //<4 // (DMRS l' position)
{1, 1, 1, 1, 1, 1, 1, 1}, //4 // (DMRS l' position)
{1, 1, 1, 1, 1, 5, 5, 5}, //5 // (DMRS l' position)
{1, 1, 1, 1, 1, 5, 5, 5}, //6 // (DMRS l' position)
{1, 1, 1, 1, 1, 5, 5, 5}, //7 // (DMRS l' position)
{1, 129, 129, 129, 1, 65, 73, 73}, //8 // (DMRS l' position)
{1, 129, 129, 129, 1, 65, 73, 73}, //9 // (DMRS l' position)
{1, 513, 577, 577, 1, 257, 273, 585}, //10 // (DMRS l' position)
{1, 513, 577, 577, 1, 257, 273, 585}, //11 // (DMRS l' position)
{1, 513, 577, 2337, 1, 1025, 1057, 585}, //12 // (DMRS l' position)
{1, 2049, 2177, 2337, 1, 1025, 1057, 585}, //13 // (DMRS l' position)
{1, 2049, 2177, 2337, 1, 1025, 1057, 585}, //14 // (DMRS l' position)
{0, 0, 0, 0, 1, 1, 1, 1}, //4 // (DMRS l' position)
{0, 0, 0, 0, 1, 17, 17, 17}, //5 // (DMRS l' position)
{0, 0, 0, 0, 1, 17, 17, 17}, //6 // (DMRS l' position)
{0, 0, 0, 0, 1, 17, 17, 17}, //7 // (DMRS l' position)
{0, 128, 128, 128, 1, 65, 73, 73}, //8 // (DMRS l' position)
{0, 128, 128, 128, 1, 65, 73, 73}, //9 // (DMRS l' position)
{0, 512, 576, 576, 1, 257, 273, 585}, //10 // (DMRS l' position)
{0, 512, 576, 576, 1, 257, 273, 585}, //11 // (DMRS l' position)
{0, 512, 576, 2336, 1, 1025, 1057, 585}, //12 // (DMRS l' position)
{0, 2048, 2176, 2336, 1, 1025, 1057, 585}, //13 // (DMRS l' position)
{0, 2048, 2176, 2336, 1, 1025, 1057, 585}, //14 // (DMRS l' position)
};
......@@ -1797,17 +1797,17 @@ int32_t table_6_4_1_1_3_3_pusch_dmrs_positions_l [12][8] = {
int32_t table_6_4_1_1_3_4_pusch_dmrs_positions_l [12][8] = { // Duration in symbols
{-1, -1, -1, -1, -1, -1, -1, -1}, //<4 // (DMRS l' position)
{1, 1, -1, -1, -1, -1, -1, -1}, //4 // (DMRS l' position)
{1, 1, -1, -1, 1, 1, -1, -1}, //5 // (DMRS l' position)
{1, 1, -1, -1, 1, 1, -1, -1}, //6 // (DMRS l' position)
{1, 1, -1, -1, 1, 1, -1, -1}, //7 // (DMRS l' position)
{1, 1, -1, -1, 1, 33, -1, -1}, //8 // (DMRS l' position)
{1, 1, -1, -1, 1, 33, -1, -1}, //9 // (DMRS l' position)
{1, 257, -1, -1, 1, 129, -1, -1}, //10 // (DMRS l' position)
{1, 257, -1, -1, 1, 129, -1, -1}, //11 // (DMRS l' position)
{1, 257, -1, -1, 1, 513, -1, -1}, //12 // (DMRS l' position)
{1, 1025, -1, -1, 1, 513, -1, -1}, //13 // (DMRS l' position)
{1, 1025, -1, -1, 1, 513, -1, -1}, //14 // (DMRS l' position)
{0, 0, -1, -1, -1, -1, -1, -1}, //4 // (DMRS l' position)
{0, 0, -1, -1, 3, 3, -1, -1}, //5 // (DMRS l' position)
{0, 0, -1, -1, 3, 3, -1, -1}, //6 // (DMRS l' position)
{0, 0, -1, -1, 3, 3, -1, -1}, //7 // (DMRS l' position)
{0, 0, -1, -1, 3, 99, -1, -1}, //8 // (DMRS l' position)
{0, 0, -1, -1, 3, 99, -1, -1}, //9 // (DMRS l' position)
{0, 768, -1, -1, 3, 387, -1, -1}, //10 // (DMRS l' position)
{0, 768, -1, -1, 3, 387, -1, -1}, //11 // (DMRS l' position)
{0, 768, -1, -1, 3, 1539, -1, -1}, //12 // (DMRS l' position)
{0, 3072, -1, -1, 3, 1539, -1, -1}, //13 // (DMRS l' position)
{0, 3072, -1, -1, 3, 1539, -1, -1}, //14 // (DMRS l' position)
};
// Returns the corresponding row index of the NR table
......@@ -2418,29 +2418,46 @@ uint8_t get_l0_ul(uint8_t mapping_type, uint8_t dmrs_typeA_position) {
}
int32_t get_l_prime(uint8_t duration_in_symbols, uint8_t mapping_type, pusch_dmrs_AdditionalPosition_t additional_pos, pusch_maxLength_t pusch_maxLength) {
int32_t get_l_prime(uint8_t duration_in_symbols, uint8_t mapping_type, pusch_dmrs_AdditionalPosition_t additional_pos, pusch_maxLength_t pusch_maxLength, uint8_t start_symbol, uint8_t dmrs_typeA_position) {
uint8_t row, colomn;
int32_t l_prime;
LOG_D(MAC, "PUSCH: NrofSymbols:%d, startSymbol:%d, mappingtype:%d, dmrs_TypeA_Position:%d\n", duration_in_symbols, start_symbol, mapping_type, dmrs_typeA_position);
// Section 6.4.1.1.3 in Spec 38.211
// For PDSCH Mapping TypeA, ld is duration between first OFDM of the slot and last OFDM symbol of the scheduled PUSCH resources
// For TypeB, ld is the duration of the scheduled PUSCH resources
uint8_t ld = (mapping_type == typeA) ? (duration_in_symbols + start_symbol) : duration_in_symbols;
uint8_t l0 = (dmrs_typeA_position == NR_MIB__dmrs_TypeA_Position_pos2) ? 2 : 3 ;
colomn = additional_pos;
if (mapping_type == typeB)
colomn += 4;
if (duration_in_symbols < 4)
if (ld < 4)
row = 0;
else
row = duration_in_symbols - 3;
row = ld - 3;
if (pusch_maxLength == pusch_len1)
if (pusch_maxLength == pusch_len1) {
l_prime = table_6_4_1_1_3_3_pusch_dmrs_positions_l[row][colomn];
else
l0 = 1 << l0;
}
else {
l_prime = table_6_4_1_1_3_4_pusch_dmrs_positions_l[row][colomn];
l0 = 1<<l0 | 1<<(l0+1);
}
AssertFatal(l_prime>0,"invalid l_prime < 0\n");
LOG_D(MAC, "PUSCH - l0:%d, ld:%d,row:%d, column:%d, addpos:%d, maxlen:%d\n", l0, ld, row, colomn, additional_pos, pusch_maxLength);
AssertFatal(l_prime>=0,"invalid l_prime < 0\n");
l_prime = (mapping_type == typeA) ? (l_prime | l0) : (l_prime << start_symbol);
LOG_D(MAC, " PUSCH DMRS MASK in HEX:%x\n", l_prime);
return l_prime;
}
/*******************************************************************
......
openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.h
View file @ 5edee9b5
......@@ -121,7 +121,7 @@ uint16_t get_NCS(uint8_t index, uint16_t format, uint8_t restricted_set_config);
int get_num_dmrs(uint16_t dmrs_mask );
uint8_t get_l0_ul(uint8_t mapping_type, uint8_t dmrs_typeA_position);
int32_t get_l_prime(uint8_t duration_in_symbols, uint8_t mapping_type, pusch_dmrs_AdditionalPosition_t additional_pos, pusch_maxLength_t pusch_maxLength);
int32_t get_l_prime(uint8_t duration_in_symbols, uint8_t mapping_type, pusch_dmrs_AdditionalPosition_t additional_pos, pusch_maxLength_t pusch_maxLength, uint8_t start_symbolt, uint8_t dmrs_typeA_position);
uint8_t get_L_ptrs(uint8_t mcs1, uint8_t mcs2, uint8_t mcs3, uint8_t I_mcs, uint8_t mcs_table);
uint8_t get_K_ptrs(uint16_t nrb0, uint16_t nrb1, uint16_t N_RB);
......
openair2/LAYER2/NR_MAC_UE/nr_ue_scheduler.c
View file @ 5edee9b5
......@@ -469,7 +469,7 @@ int nr_config_pusch_pdu(NR_UE_MAC_INST_t *mac,
int NrOfSymbols;
uint8_t nb_dmrs_re_per_rb;
uint16_t l_prime_mask = 1;
uint16_t l_prime_mask = 0;
uint16_t number_dmrs_symbols = 0;
int N_PRB_oh = 0;
......@@ -482,6 +482,9 @@ int nr_config_pusch_pdu(NR_UE_MAC_INST_t *mac,
pusch_config_pdu->nrOfLayers = 1;
pusch_config_pdu->rnti = rnti;
pusch_dmrs_AdditionalPosition_t add_pos = pusch_dmrs_pos2;
pusch_maxLength_t dmrslength = pusch_len1;
if (rar_grant) {
// Note: for Msg3 or MsgA PUSCH transmission the N_PRB_oh is always set to 0
......@@ -529,7 +532,7 @@ int nr_config_pusch_pdu(NR_UE_MAC_INST_t *mac,
pusch_config_pdu->start_symbol_index = StartSymbolIndex;
pusch_config_pdu->nr_of_symbols = NrOfSymbols;
l_prime_mask = get_l_prime(NrOfSymbols, mappingtype, pusch_dmrs_pos2, pusch_len1);
l_prime_mask = get_l_prime(NrOfSymbols, mappingtype, add_pos, dmrslength, StartSymbolIndex, scc->dmrs_TypeA_Position);
LOG_D(MAC, "MSG3 start_sym:%d NR Symb:%d mappingtype:%d , DMRS_MASK:%x\n", pusch_config_pdu->start_symbol_index, pusch_config_pdu->nr_of_symbols, mappingtype, l_prime_mask);
#ifdef DEBUG_MSG3
......@@ -612,18 +615,26 @@ int nr_config_pusch_pdu(NR_UE_MAC_INST_t *mac,
}
NR_PUSCH_TimeDomainResourceAllocationList_t *pusch_TimeDomainAllocationList = NULL;
if (pusch_Config->pusch_TimeDomainAllocationList) {
pusch_TimeDomainAllocationList = pusch_Config->pusch_TimeDomainAllocationList->choice.setup;
}
else if (mac->ULbwp[0]->bwp_Common->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList) {
pusch_TimeDomainAllocationList = mac->ULbwp[0]->bwp_Common->pusch_ConfigCommon->choice.setup->pusch_TimeDomainAllocationList;
}
int mappingtype = pusch_TimeDomainAllocationList->list.array[dci->time_domain_assignment.val]->mappingType;
NR_DMRS_UplinkConfig_t *NR_DMRS_ulconfig = NULL;
NR_DMRS_ulconfig = (mappingtype == NR_PUSCH_TimeDomainResourceAllocation__mappingType_typeA)
? pusch_Config->dmrs_UplinkForPUSCH_MappingTypeA->choice.setup : pusch_Config->dmrs_UplinkForPUSCH_MappingTypeB->choice.setup;
/* TRANSFORM PRECODING ------------------------------------------------------------------------------------------*/
if (pusch_config_pdu->transform_precoding == transform_precoder_enabled) {
pusch_config_pdu->num_dmrs_cdm_grps_no_data = 2;
NR_DMRS_UplinkConfig_t *NR_DMRS_ulconfig = NULL;
if(pusch_Config->dmrs_UplinkForPUSCH_MappingTypeA != NULL)
NR_DMRS_ulconfig = pusch_Config->dmrs_UplinkForPUSCH_MappingTypeA->choice.setup;
else
NR_DMRS_ulconfig = pusch_Config->dmrs_UplinkForPUSCH_MappingTypeB->choice.setup;
uint32_t n_RS_Id = 0;
if (NR_DMRS_ulconfig->transformPrecodingEnabled->nPUSCH_Identity != NULL)
n_RS_Id = *NR_DMRS_ulconfig->transformPrecodingEnabled->nPUSCH_Identity;
......@@ -692,8 +703,13 @@ int nr_config_pusch_pdu(NR_UE_MAC_INST_t *mac,
pusch_config_pdu->absolute_delta_PUSCH = 4;
}
if (NR_DMRS_ulconfig != NULL) {
add_pos = (NR_DMRS_ulconfig->dmrs_AdditionalPosition == NULL) ? 2 : *NR_DMRS_ulconfig->dmrs_AdditionalPosition;
dmrslength = NR_DMRS_ulconfig->maxLength == NULL ? pusch_len1 : pusch_len2;
}
/* DMRS */
l_prime_mask = get_l_prime(pusch_config_pdu->nr_of_symbols, typeB, pusch_dmrs_pos0, pusch_len1);
l_prime_mask = get_l_prime(pusch_config_pdu->nr_of_symbols, mappingtype, add_pos, dmrslength, pusch_config_pdu->start_symbol_index, scc->dmrs_TypeA_Position);
if (pusch_config_pdu->transform_precoding == transform_precoder_disabled)
pusch_config_pdu->num_dmrs_cdm_grps_no_data = 1;
......@@ -731,7 +747,7 @@ int nr_config_pusch_pdu(NR_UE_MAC_INST_t *mac,
pusch_config_pdu->nr_of_symbols,
rnti_types[rnti_type]);
pusch_config_pdu->ul_dmrs_symb_pos = l_prime_mask << pusch_config_pdu->start_symbol_index;;
pusch_config_pdu->ul_dmrs_symb_pos = l_prime_mask;
pusch_config_pdu->target_code_rate = nr_get_code_rate_ul(pusch_config_pdu->mcs_index, pusch_config_pdu->mcs_table);
pusch_config_pdu->qam_mod_order = nr_get_Qm_ul(pusch_config_pdu->mcs_index, pusch_config_pdu->mcs_table);
......
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c
View file @ 5edee9b5
......@@ -822,9 +822,8 @@ void nr_add_msg3(module_id_t module_idP, int CC_id, frame_t frameP, sub_frame_t
pusch_pdu->data_scrambling_id = *scc->physCellId;
pusch_pdu->nrOfLayers = 1;
const uint16_t l_prime_mask = get_l_prime(nr_of_symbols,mappingtype,pusch_dmrs_pos2,pusch_len1);
pusch_pdu->ul_dmrs_symb_pos = l_prime_mask << start_symbol_index;
LOG_D(MAC, "MSG3 start_sym:%d NR Symb:%d mappingtype:%d , DMRS_MASK:%x, ul_dmrs_symb_pos:%x\n", start_symbol_index, nr_of_symbols, mappingtype, l_prime_mask, pusch_pdu->ul_dmrs_symb_pos);
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.
......
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
View file @ 5edee9b5
......@@ -270,11 +270,12 @@ void nr_save_pusch_fields(const NR_ServingCellConfigCommon_t *scc,
: *ps->NR_DMRS_UplinkConfig->dmrs_AdditionalPosition);
const pusch_maxLength_t pusch_maxLength =
ps->NR_DMRS_UplinkConfig->maxLength == NULL ? 1 : 2;
const uint16_t l_prime_mask = get_l_prime(ps->nrOfSymbols,
ps->ul_dmrs_symb_pos = get_l_prime(ps->nrOfSymbols,
ps->mapping_type,
additional_pos,
pusch_maxLength);
ps->ul_dmrs_symb_pos = l_prime_mask << ps->startSymbolIndex;
pusch_maxLength,
ps->startSymbolIndex,
scc->dmrs_TypeA_Position);
uint8_t num_dmrs_symb = 0;
for(int i = ps->startSymbolIndex; i < ps->startSymbolIndex + ps->nrOfSymbols; i++)
num_dmrs_symb += (ps->ul_dmrs_symb_pos >> i) & 1;
......
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