From 7996582729fbe63b792c612018584726239ccfc4 Mon Sep 17 00:00:00 2001 From: Mario Hudon Date: Fri, 18 Sep 2020 15:00:59 -0400 Subject: [PATCH] - Added support for random RO selection for a given SSB index in a slot (as per 38.321) - Fixed random preamble selection in contention-based RA - Cleaned-up comments and commented code --- openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c | 180 ++++------------ openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c | 11 +- openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c | 199 +++++++----------- 3 files changed, 121 insertions(+), 269 deletions(-) diff --git a/openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c b/openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c index 89f265678c..ac08155e2f 100644 --- a/openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c +++ b/openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c @@ -1048,10 +1048,6 @@ static void build_ro_list(NR_ServingCellConfigCommon_t *scc, uint8_t unpaired) { config_index = rach_ConfigGeneric->prach_ConfigurationIndex; - // WIP-IDCC Force config index to 44 for debug -// LOG_D(MAC,"Change PRACH config index from %d to 44 for debug\n", config_index); -// config_index = 44; - if (setup->msg1_SubcarrierSpacing) mu = *setup->msg1_SubcarrierSpacing; else @@ -1074,8 +1070,6 @@ static void build_ro_list(NR_ServingCellConfigCommon_t *scc, uint8_t unpaired) { // Create the PRACH occasions map // ============================== // WIP-IDCC: For now assume no rejected PRACH occasions because of conflict with SSB or TDD_UL_DL_ConfigurationCommon schedule - // WIP-IDCC: Only FR2 is implemented - // WIP-IDCC: RACH preambles are not mapped yet (assumptions: ssb_per_rach is <= 1, totalNumberOfRA = CB-preamblesPerSSB - see NR_MAC_UE/nr_ra_procedures.c->nr_get_prach_resources) // Identify the proper PRACH Configuration Index table according to the operating frequency LOG_D(MAC,"Pointa %u, mu = %u, PRACH config index = %u, unpaired = %u\n", pointa, mu, config_index, unpaired); @@ -1334,7 +1328,7 @@ static void map_ssb_to_ro(NR_ServingCellConfigCommon_t *scc) { // ============================================================================================================== // WIP-IDCC: Assumption for now is that all the PRACH configuration periods within a maximum association pattern period have the same number of PRACH occasions // (No PRACH occasions are conflicting with SSBs nor TDD_UL_DL_ConfigurationCommon schedule) - // There is only one possible association period + // There is only one possible association period which can contain up to 16 PRACH configuration periods LOG_D(MAC,"Evaluate the number of PRACH configuration periods required to map all the SSBs and set the association period\n"); if (true == multiple_ssb_per_ro) { required_nb_of_prach_occasion = ((ssb_list.nb_tx_ssb-1) + ssb_rach_ratio) / ssb_rach_ratio; @@ -1389,7 +1383,7 @@ static void map_ssb_to_ro(NR_ServingCellConfigCommon_t *scc) { uint8_t ro_in_freq=0; // Set the starting PRACH Configuration period index in the association_pattern map for this particular association period - prach_configuration_period_idx = 0; // WIP-IDCC: only one possible association period + prach_configuration_period_idx = 0; // WIP-IDCC: only one possible association period so the starting PRACH configuration period is automatically 0 // Check if we need to map multiple SSBs per RO or multiple ROs per SSB if (true == multiple_ssb_per_ro) { @@ -1400,6 +1394,7 @@ static void map_ssb_to_ro(NR_ServingCellConfigCommon_t *scc) { // -------------------- // WIP-IDCC: For the moment, only map each SSB idx once per association period if configuration is multiple SSBs per RO + // this is true if no PRACH occasions are conflicting with SSBs nor TDD_UL_DL_ConfigurationCommon schedule ssb_idx = 0; // Go through the list of PRACH config periods within this association period @@ -1417,6 +1412,7 @@ static void map_ssb_to_ro(NR_ServingCellConfigCommon_t *scc) { // Go through the list of transmitted SSBs and map the required amount of SSBs to this RO // WIP-IDCC: For the moment, only map each SSB idx once per association period if configuration is multiple SSBs per RO + // this is true if no PRACH occasions are conflicting with SSBs nor TDD_UL_DL_ConfigurationCommon schedule for (; ssb_idxnb_of_prach_occasion_in_time; ro_in_time++) { for (int ro_in_freq=0; ro_in_freq < prach_occasion_slot_p->nb_of_prach_occasion_in_freq; ro_in_freq++) { prach_occasion_info_t *prach_occasion_info_p = &prach_occasion_slot_p->prach_occasion[ro_in_time][ro_in_freq]; + for (uint8_t ssb_nb=0; ssb_nbnb_mapped_ssb; ssb_nb++) { if (prach_occasion_info_p->mapped_ssb_idx[ssb_nb] == ssb_idx) { - *prach_occasion_info_pp = prach_occasion_info_p; - return 1; + nb_mapped_ssb++; + } + } + } + } + + // Choose a random SSB nb + uint8_t random_ssb_nb = 0; + + random_ssb_nb = ((taus()) % nb_mapped_ssb); + + // Select the RO according to the chosen random SSB nb + nb_mapped_ssb=0; + for (int ro_in_time=0; ro_in_time < prach_occasion_slot_p->nb_of_prach_occasion_in_time; ro_in_time++) { + for (int ro_in_freq=0; ro_in_freq < prach_occasion_slot_p->nb_of_prach_occasion_in_freq; ro_in_freq++) { + prach_occasion_info_t *prach_occasion_info_p = &prach_occasion_slot_p->prach_occasion[ro_in_time][ro_in_freq]; + + for (uint8_t ssb_nb=0; ssb_nbnb_mapped_ssb; ssb_nb++) { + if (prach_occasion_info_p->mapped_ssb_idx[ssb_nb] == ssb_idx) { + if (nb_mapped_ssb == random_ssb_nb) { + *prach_occasion_info_pp = prach_occasion_info_p; + return 1; + } + else { + nb_mapped_ssb++; + } } } } @@ -1614,138 +1638,6 @@ int get_nr_prach_info_from_ssb_index(uint8_t ssb_idx, return 0; } -int get_nr_prach_info_from_index(uint8_t index, - int frame, - int slot, - uint32_t pointa, - uint8_t mu, - uint8_t unpaired, - uint16_t *format, - uint8_t *start_symbol, - uint8_t *N_t_slot, - uint8_t *N_dur) { - - int x,y; - int64_t s_map; - uint8_t format2 = 0xff; - - if (pointa > 2016666) { //FR2 - int y2; - uint8_t slot_60khz; - x = table_6_3_3_2_4_prachConfig_Index[index][2]; - y = table_6_3_3_2_4_prachConfig_Index[index][3]; - y2 = table_6_3_3_2_4_prachConfig_Index[index][4]; - // checking n_sfn mod x = y - if ( (frame%x)==y || (frame%x)==y2 ) { - slot_60khz = slot >> (mu-2); // in table slots are numbered wrt 60kHz - s_map = table_6_3_3_2_4_prachConfig_Index[index][5]; - if ( ((s_map>>slot_60khz)&0x01) ) { - if (mu == 3) { - if ( (table_6_3_3_2_4_prachConfig_Index[index][7] == 1) && (slot%2 == 0) ) - return 0; // no prach in even slots @ 120kHz for 1 prach per 60khz slot - } - if (start_symbol != NULL && N_t_slot != NULL && N_dur != NULL && format != NULL){ - *start_symbol = table_6_3_3_2_4_prachConfig_Index[index][6]; - *N_t_slot = table_6_3_3_2_4_prachConfig_Index[index][8]; - *N_dur = table_6_3_3_2_4_prachConfig_Index[index][9]; - if (table_6_3_3_2_4_prachConfig_Index[index][1] != -1) - format2 = (uint8_t) table_6_3_3_2_4_prachConfig_Index[index][1]; - *format = ((uint8_t) table_6_3_3_2_4_prachConfig_Index[index][0]) | (format2<<8); - LOG_D(MAC,"Frame %d slot %d: Getting PRACH info from index %d absoluteFrequencyPointA %u mu %u frame_type %u start_symbol %u N_t_slot %u N_dur %u \n", frame, - slot, - index, - pointa, - mu, - unpaired, - *start_symbol, - *N_t_slot, - *N_dur); - } - return 1; - } - else - return 0; // no prach in current slot - } - else - return 0; // no prach in current frame - } - else { - uint8_t subframe; - if (unpaired) { - x = table_6_3_3_2_3_prachConfig_Index[index][2]; - y = table_6_3_3_2_3_prachConfig_Index[index][3]; - if ( (frame%x)==y ) { - subframe = slot >> mu; - s_map = table_6_3_3_2_3_prachConfig_Index[index][4]; - if ( (s_map>>subframe)&0x01 ) { - if (mu == 1) { - if ( (table_6_3_3_2_3_prachConfig_Index[index][6] <= 1) && (slot%2 == 0) ) - return 0; // no prach in even slots @ 30kHz for 1 prach per subframe - } - if (start_symbol != NULL && N_t_slot != NULL && N_dur != NULL && format != NULL){ - *start_symbol = table_6_3_3_2_3_prachConfig_Index[index][5]; - *N_t_slot = table_6_3_3_2_3_prachConfig_Index[index][7]; - *N_dur = table_6_3_3_2_3_prachConfig_Index[index][8]; - if (table_6_3_3_2_3_prachConfig_Index[index][1] != -1) - format2 = (uint8_t) table_6_3_3_2_3_prachConfig_Index[index][1]; - *format = ((uint8_t) table_6_3_3_2_3_prachConfig_Index[index][0]) | (format2<<8); - LOG_D(MAC,"Frame %d slot %d: Getting PRACH info from index %d (col 6 %ld) absoluteFrequencyPointA %u mu %u frame_type %u start_symbol %u N_t_slot %u N_dur %u \n", frame, - slot, - index, table_6_3_3_2_3_prachConfig_Index[index][6], - pointa, - mu, - unpaired, - *start_symbol, - *N_t_slot, - *N_dur); - } - return 1; - } - else - return 0; // no prach in current slot - } - else - return 0; // no prach in current frame - } - else { // FDD - x = table_6_3_3_2_2_prachConfig_Index[index][2]; - y = table_6_3_3_2_2_prachConfig_Index[index][3]; - if ( (frame%x)==y ) { - subframe = slot >> mu; - s_map = table_6_3_3_2_2_prachConfig_Index[index][4]; - if ( (s_map>>subframe)&0x01 ) { - if (mu == 1) { - if ( (table_6_3_3_2_2_prachConfig_Index[index][6] <= 1) && (slot%2 == 0) ) - return 0; // no prach in even slots @ 30kHz for 1 prach per subframe - } - if (start_symbol != NULL && N_t_slot != NULL && N_dur != NULL && format != NULL){ - *start_symbol = table_6_3_3_2_2_prachConfig_Index[index][5]; - *N_t_slot = table_6_3_3_2_2_prachConfig_Index[index][7]; - *N_dur = table_6_3_3_2_2_prachConfig_Index[index][8]; - if (table_6_3_3_2_2_prachConfig_Index[index][1] != -1) - format2 = (uint8_t) table_6_3_3_2_2_prachConfig_Index[index][1]; - *format = ((uint8_t) table_6_3_3_2_2_prachConfig_Index[index][0]) | (format2<<8); - LOG_D(MAC,"Frame %d slot %d: Getting PRACH info from index %d absoluteFrequencyPointA %u mu %u frame_type %u start_symbol %u N_t_slot %u N_dur %u \n", frame, - slot, - index, - pointa, - mu, - unpaired, - *start_symbol, - *N_t_slot, - *N_dur); - } - return 1; - } - else - return 0; // no prach in current slot - } - else - return 0; // no prach in current frame - } - } -} - //Table 6.3.3.1-3: Mapping from logical index i to sequence number u for preamble formats with L_RA = 839 uint16_t table_63313[838] = { 129, 710, 140, 699, 120, 719, 210, 629, 168, 671, 84 , 755, 105, 734, 93 , 746, 70 , 769, 60 , 779, diff --git a/openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c b/openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c index 5a4cd7881d..803acdc572 100644 --- a/openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c +++ b/openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c @@ -144,27 +144,27 @@ void nr_get_prach_resources(module_id_t mod_id, case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_oneEighth: multiple_ssb_per_ro = false; ssb_rach_ratio = 8; - cb_preambles_per_ssb = nr_rach_ConfigCommon->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->choice.oneEighth; + cb_preambles_per_ssb = 4 * (nr_rach_ConfigCommon->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->choice.oneEighth + 1); break; case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_oneFourth: multiple_ssb_per_ro = false; ssb_rach_ratio = 4; - cb_preambles_per_ssb = nr_rach_ConfigCommon->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->choice.oneFourth; + cb_preambles_per_ssb = 4 * (nr_rach_ConfigCommon->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->choice.oneFourth + 1); break; case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_oneHalf: multiple_ssb_per_ro = false; ssb_rach_ratio = 2; - cb_preambles_per_ssb = nr_rach_ConfigCommon->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->choice.oneHalf; + cb_preambles_per_ssb = 4 * (nr_rach_ConfigCommon->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->choice.oneHalf + 1); break; case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_one: multiple_ssb_per_ro = true; ssb_rach_ratio = 1; - cb_preambles_per_ssb = nr_rach_ConfigCommon->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->choice.one; + cb_preambles_per_ssb = 4 * (nr_rach_ConfigCommon->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->choice.one + 1); break; case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_two: multiple_ssb_per_ro = true; ssb_rach_ratio = 2; - cb_preambles_per_ssb = nr_rach_ConfigCommon->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->choice.two; + cb_preambles_per_ssb = 4 * (nr_rach_ConfigCommon->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->choice.two + 1); break; case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_four: multiple_ssb_per_ro = true; @@ -313,6 +313,7 @@ void nr_get_prach_resources(module_id_t mod_id, prach_resources->ra_PreambleIndex = starting_preamble_nb + sizeOfRA_PreamblesGroupA + ((taus()) % (cb_preambles_per_ssb - sizeOfRA_PreamblesGroupA)); } } + LOG_D(MAC, "[RAPROC] - Selected RA preamble index %d for contention-based random access procedure... \n", prach_resources->ra_PreambleIndex); } diff --git a/openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c b/openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c index 32d991ab4c..41852d748c 100644 --- a/openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c +++ b/openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c @@ -940,9 +940,7 @@ NR_UE_L2_STATE_t nr_ue_scheduler(nr_downlink_indication_t *dl_info, nr_uplink_in // - Partial configuration is actually already stored in (fapi_nr_prach_config_t) &mac->phy_config.config_req->prach_config void nr_ue_prach_scheduler(module_id_t module_idP, frame_t frameP, sub_frame_t slotP) { -// uint8_t config_index, mu, N_dur, N_t_slot, start_symbol; uint16_t format, format0, format1, ncs; -// int msg1_FDM, is_nr_prach_slot, fdm; int is_nr_prach_slot; prach_occasion_info_t *prach_occasion_info_p; @@ -955,32 +953,15 @@ void nr_ue_prach_scheduler(module_id_t module_idP, frame_t frameP, sub_frame_t s NR_ServingCellConfigCommon_t *scc = mac->scc; NR_RACH_ConfigCommon_t *setup = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup; -// NR_FrequencyInfoDL_t *frequencyInfoDL = scc->downlinkConfigCommon->frequencyInfoDL; NR_RACH_ConfigGeneric_t *rach_ConfigGeneric = &setup->rach_ConfigGeneric; -// config_index = rach_ConfigGeneric->prach_ConfigurationIndex; mac->RA_offset = 2; // to compensate the rx frame offset at the gNB mac->generate_nr_prach = 0; // Reset flag for PRACH generation if (is_nr_UL_slot(scc, slotP)) { -// if (setup->msg1_SubcarrierSpacing) -// mu = *setup->msg1_SubcarrierSpacing; -// else -// mu = frequencyInfoDL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing; - -// is_nr_prach_slot = get_nr_prach_info_from_index(config_index, -// (int)frameP, -// (int)slotP, -// frequencyInfoDL->absoluteFrequencyPointA, -// mu, -// cfg->cell_config.frame_duplex_type, -// &format, -// &start_symbol, -// &N_t_slot, -// &N_dur); - // WIP-IDCC Need to get the proper selected ssb_idx + // Initial beam selection functionality is not available yet uint8_t selected_gnb_ssb_idx = 0; // Get any valid PRACH occasion in the current slot for the selected SSB index @@ -990,24 +971,10 @@ void nr_ue_prach_scheduler(module_id_t module_idP, frame_t frameP, sub_frame_t s &prach_occasion_info_p); if (is_nr_prach_slot && mac->ra_state == RA_UE_IDLE) { - AssertFatal(NULL != prach_occasion_info_p,"PRACH Occasion Info not returned in a valid NR Prach Slot\n"); mac->generate_nr_prach = 1; -// fdm = rach_ConfigGeneric->msg1_FDM; -// -// switch (fdm){ -// case 0: -// case 1: -// case 2: -// case 3: -// msg1_FDM = 1 << fdm; -// break; -// default: -// AssertFatal(1 == 0, "Unknown msg1_FDM from rach_ConfigGeneric %d\n", fdm); -// } - format = prach_occasion_info_p->format; format0 = format & 0xff; // single PRACH format format1 = (format >> 8) & 0xff; // dual PRACH format @@ -1015,102 +982,94 @@ void nr_ue_prach_scheduler(module_id_t module_idP, frame_t frameP, sub_frame_t s ul_config->sfn = frameP; ul_config->slot = slotP; -// for (int n = 0; n < msg1_FDM; n++) { // one structure per frequency domain occasion + ul_config->ul_config_list[ul_config->number_pdus].pdu_type = FAPI_NR_UL_CONFIG_TYPE_PRACH; + prach_config_pdu = &ul_config->ul_config_list[ul_config->number_pdus].prach_config_pdu; + memset(prach_config_pdu, 0, sizeof(fapi_nr_ul_config_prach_pdu)); + ul_config->number_pdus += 1; - ul_config->ul_config_list[ul_config->number_pdus].pdu_type = FAPI_NR_UL_CONFIG_TYPE_PRACH; - prach_config_pdu = &ul_config->ul_config_list[ul_config->number_pdus].prach_config_pdu; - memset(prach_config_pdu, 0, sizeof(fapi_nr_ul_config_prach_pdu)); - ul_config->number_pdus += 1; + ncs = get_NCS(rach_ConfigGeneric->zeroCorrelationZoneConfig, format0, setup->restrictedSetConfig); - ncs = get_NCS(rach_ConfigGeneric->zeroCorrelationZoneConfig, format0, setup->restrictedSetConfig); + prach_config_pdu->phys_cell_id = *scc->physCellId; + prach_config_pdu->num_prach_ocas = 1; + prach_config_pdu->prach_slot = prach_occasion_info_p->slot; + prach_config_pdu->prach_start_symbol = prach_occasion_info_p->start_symbol; + prach_config_pdu->num_ra = prach_occasion_info_p->fdm; - // filling PRACH PDU for FAPI config request -// prach_config_pdu->phys_cell_id = *scc->physCellId; -// prach_config_pdu->num_prach_ocas = N_t_slot; -// prach_config_pdu->prach_start_symbol = start_symbol; -// prach_config_pdu->num_ra = n; + prach_config_pdu->num_cs = ncs; + prach_config_pdu->root_seq_id = prach_config->num_prach_fd_occasions_list[prach_occasion_info_p->fdm].prach_root_sequence_index; - prach_config_pdu->phys_cell_id = *scc->physCellId; - prach_config_pdu->num_prach_ocas = 1; - prach_config_pdu->prach_slot = prach_occasion_info_p->slot; - prach_config_pdu->prach_start_symbol = prach_occasion_info_p->start_symbol; - prach_config_pdu->num_ra = prach_occasion_info_p->fdm; + prach_config_pdu->restricted_set = prach_config->restricted_set_config; + prach_config_pdu->freq_msg1 = prach_config->num_prach_fd_occasions_list[prach_occasion_info_p->fdm].k1; - prach_config_pdu->num_cs = ncs; -// prach_config_pdu->root_seq_id = prach_config->num_prach_fd_occasions_list[n].prach_root_sequence_index; - prach_config_pdu->root_seq_id = prach_config->num_prach_fd_occasions_list[prach_occasion_info_p->fdm].prach_root_sequence_index; + LOG_D(MAC,"Selected RO Frame %u, Slot %u, Symbol %u, Fdm %u\n", frameP, prach_config_pdu->prach_slot, prach_config_pdu->prach_start_symbol, prach_config_pdu->num_ra); - prach_config_pdu->restricted_set = prach_config->restricted_set_config; -// prach_config_pdu->freq_msg1 = prach_config->num_prach_fd_occasions_list[n].k1; - prach_config_pdu->freq_msg1 = prach_config->num_prach_fd_occasions_list[prach_occasion_info_p->fdm].k1; + // Search which SSB is mapped in the RO (among all the SSBs mapped to this RO) + for (prach_config_pdu->ssb_nb_in_ro=0; prach_config_pdu->ssb_nb_in_ronb_mapped_ssb; prach_config_pdu->ssb_nb_in_ro++) { + if (prach_occasion_info_p->mapped_ssb_idx[prach_config_pdu->ssb_nb_in_ro] == selected_gnb_ssb_idx) + break; + } + AssertFatal(prach_config_pdu->ssb_nb_in_ronb_mapped_ssb, "%u not found in the mapped SSBs to the PRACH occasion", selected_gnb_ssb_idx); - // Search which SSB is mapped in the RO (among all the SSBs mapped to this RO) - for (prach_config_pdu->ssb_nb_in_ro=0; prach_config_pdu->ssb_nb_in_ronb_mapped_ssb; prach_config_pdu->ssb_nb_in_ro++) { - if (prach_occasion_info_p->mapped_ssb_idx[prach_config_pdu->ssb_nb_in_ro] == selected_gnb_ssb_idx) + if (format1 != 0xff) { + switch(format0) { // dual PRACH format + case 0xa1: + prach_config_pdu->prach_format = 9; break; + case 0xa2: + prach_config_pdu->prach_format = 10; + break; + case 0xa3: + prach_config_pdu->prach_format = 11; + break; + default: + AssertFatal(1 == 0, "Only formats A1/B1 A2/B2 A3/B3 are valid for dual format"); } - AssertFatal(prach_config_pdu->ssb_nb_in_ronb_mapped_ssb, "%u not found in the mapped SSBs to the PRACH occasion", selected_gnb_ssb_idx); - - if (format1 != 0xff) { - switch(format0) { // dual PRACH format - case 0xa1: - prach_config_pdu->prach_format = 9; - break; - case 0xa2: - prach_config_pdu->prach_format = 10; - break; - case 0xa3: - prach_config_pdu->prach_format = 11; - break; + } else { + switch(format0) { // single PRACH format + case 0xa1: + prach_config_pdu->prach_format = 0; + break; + case 0xa2: + prach_config_pdu->prach_format = 1; + break; + case 0xa3: + prach_config_pdu->prach_format = 2; + break; + case 0xb1: + prach_config_pdu->prach_format = 3; + break; + case 0xb2: + prach_config_pdu->prach_format = 4; + break; + case 0xb3: + prach_config_pdu->prach_format = 5; + break; + case 0xb4: + prach_config_pdu->prach_format = 6; + break; + case 0xc0: + prach_config_pdu->prach_format = 7; + break; + case 0xc2: + prach_config_pdu->prach_format = 8; + break; + case 0: + // long formats are handled @ PHY + break; + case 1: + // long formats are handled @ PHY + break; + case 2: + // long formats are handled @ PHY + break; + case 3: + // long formats are handled @ PHY + break; default: - AssertFatal(1 == 0, "Only formats A1/B1 A2/B2 A3/B3 are valid for dual format"); - } - } else { - switch(format0) { // single PRACH format - case 0xa1: - prach_config_pdu->prach_format = 0; - break; - case 0xa2: - prach_config_pdu->prach_format = 1; - break; - case 0xa3: - prach_config_pdu->prach_format = 2; - break; - case 0xb1: - prach_config_pdu->prach_format = 3; - break; - case 0xb2: - prach_config_pdu->prach_format = 4; - break; - case 0xb3: - prach_config_pdu->prach_format = 5; - break; - case 0xb4: - prach_config_pdu->prach_format = 6; - break; - case 0xc0: - prach_config_pdu->prach_format = 7; - break; - case 0xc2: - prach_config_pdu->prach_format = 8; - break; - case 0: - // long formats are handled @ PHY - break; - case 1: - // long formats are handled @ PHY - break; - case 2: - // long formats are handled @ PHY - break; - case 3: - // long formats are handled @ PHY - break; - default: - AssertFatal(1 == 0, "Invalid PRACH format"); - } - } // if format1 -// } for n + AssertFatal(1 == 0, "Invalid PRACH format"); + } + } // if format1 + } else if (mac->ra_state == RA_SUCCEEDED){ mac->generate_nr_prach = 2; } // if-else is_nr_prach_slot