diff --git a/openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c b/openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c index 4f2b7b4bb3..7e39b28697 100644 --- a/openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c +++ b/openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c @@ -31,72 +31,8 @@ */ #include "LAYER2/NR_MAC_gNB/mac_proto.h" -#include "asn1_conversions.h" #include -/* Tools */ -#include "SIMULATION/TOOLS/sim.h" // for taus - -// ================================================ -// SSB to RO mapping private defines and structures -// ================================================ - -#define MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PERIOD (16) // Maximum association period is 16 -#define MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD (16) // Max association pattern period is 160ms and minimum PRACH configuration period is 10ms -#define MAX_NB_ASSOCIATION_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD (16) // Max nb of association periods in an association pattern period of 160ms -#define MAX_NB_FRAME_IN_PRACH_CONF_PERIOD (16) // Max PRACH configuration period is 160ms and frame is 10ms -#define MAX_NB_SLOT_IN_FRAME (160) // Max number of slots in a frame (@ SCS 240kHz = 160) -#define MAX_NB_FRAME_IN_ASSOCIATION_PATTERN_PERIOD (16) // Maximum number of frames in the maximum association pattern period -#define MAX_NB_SSB (64) // Maximum number of possible SSB indexes -#define MAX_RO_PER_SSB (8) // Maximum number of consecutive ROs that can be mapped to an SSB according to the ssb_per_RACH config - -// Maximum number of ROs that can be mapped to an SSB in an association pattern -// This is to reserve enough elements in the SSBs list for each mapped ROs for a single SSB -// An arbitrary maximum number is chosen to be safe: maximum number of slots in an association pattern * maximum number of ROs in a slot -#define MAX_NB_RO_PER_SSB_IN_ASSOCIATION_PATTERN (MAX_TDM*MAX_FDM*MAX_NB_SLOT_IN_FRAME*MAX_NB_FRAME_IN_ASSOCIATION_PATTERN_PERIOD) - -// The PRACH Config period is a series of selected slots in one or multiple frames -typedef struct prach_conf_period { - prach_occasion_slot_t prach_occasion_slot_map[MAX_NB_FRAME_IN_PRACH_CONF_PERIOD][MAX_NB_SLOT_IN_FRAME]; - uint16_t nb_of_prach_occasion; // Total number of PRACH occasions in the PRACH Config period - uint8_t nb_of_frame; // Size of the PRACH Config period in number of 10ms frames - uint8_t nb_of_slot; // Nb of slots in each frame -} prach_conf_period_t; - -// The association period is a series of PRACH Config periods -typedef struct prach_association_period { - prach_conf_period_t *prach_conf_period_list[MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PERIOD]; - uint8_t nb_of_prach_conf_period; // Nb of PRACH configuration periods within the association period - uint8_t nb_of_frame; // Total number of frames included in the association period -} prach_association_period_t; - -// The association pattern is a series of Association periods -typedef struct prach_association_pattern { - prach_association_period_t prach_association_period_list[MAX_NB_ASSOCIATION_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD]; - prach_conf_period_t prach_conf_period_list[MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD]; - uint8_t nb_of_assoc_period; // Nb of association periods within the association pattern - uint8_t nb_of_prach_conf_period_in_max_period; // Nb of PRACH configuration periods within the maximum association pattern period (according to the size of the configured PRACH - uint8_t nb_of_frame; // Total number of frames included in the association pattern period (after mapping the SSBs and determining the real association pattern length) -} prach_association_pattern_t; - -// SSB details -typedef struct ssb_info { - boolean_t transmitted; // True if the SSB index is transmitted according to the SSB positions map configuration - prach_occasion_info_t *mapped_ro[MAX_NB_RO_PER_SSB_IN_ASSOCIATION_PATTERN]; // List of mapped RACH Occasions to this SSB index - uint16_t nb_mapped_ro; // Total number of mapped ROs to this SSB index -} ssb_info_t; - -// List of all the possible SSBs and their details -typedef struct ssb_list_info { - ssb_info_t tx_ssb[MAX_NB_SSB]; - uint8_t nb_tx_ssb; -} ssb_list_info_t; - -static prach_association_pattern_t prach_assoc_pattern; -static ssb_list_info_t ssb_list; - -// =============================================== -// =============================================== const uint8_t nr_slots_per_frame[5] = {10, 20, 40, 80, 160}; // Table 6.3.3.1-5 (38.211) NCS for preamble formats with delta_f_RA = 1.25 KHz @@ -1011,6 +947,24 @@ int get_format0(uint8_t index, return format; } +int64_t *get_prach_config_info(uint32_t pointa, + uint8_t index, + uint8_t unpaired) { + int64_t *prach_config_info_p; + + if (pointa > 2016666) { //FR2 + prach_config_info_p = table_6_3_3_2_4_prachConfig_Index[index]; + } + else { // FR1 + if (unpaired) + prach_config_info_p = table_6_3_3_2_3_prachConfig_Index[index]; + else + prach_config_info_p = table_6_3_3_2_2_prachConfig_Index[index]; + } // FR2 / FR1 + + return prach_config_info_p; +} + void find_monitoring_periodicity_offset_common(NR_SearchSpace_t *ss, uint16_t *slot_period, uint16_t *offset) { @@ -1082,628 +1036,6 @@ void find_monitoring_periodicity_offset_common(NR_SearchSpace_t *ss, } } -// Build the list of all the valid RACH occasions in the maximum association pattern period according to the PRACH config -static void build_ro_list(NR_ServingCellConfigCommon_t *scc, uint8_t unpaired) { - - int x,y; // PRACH Configuration Index table variables used to compute the valid frame numbers - int y2; // PRACH Configuration Index table additional variable used to compute the valid frame numbers - uint8_t slot_shift_for_map; - uint8_t map_shift; - boolean_t even_slot_invalid; - int64_t s_map; - uint8_t prach_conf_start_symbol; // Starting symbol of the PRACH occasions in the PRACH slot - uint8_t N_t_slot; // Number of PRACH occasions in a 14-symbols PRACH slot - uint8_t N_dur; // Duration of a PRACH occasion (nb of symbols) - uint8_t frame; // Maximum is NB_FRAMES_IN_MAX_ASSOCIATION_PATTERN_PERIOD - uint8_t slot; // Maximum is the number of slots in a frame @ SCS 240kHz - uint16_t format = 0xffff; - uint8_t format2 = 0xff; - int nb_fdm; - - uint8_t config_index, mu; - uint32_t pointa; - int msg1_FDM; - - uint8_t prach_conf_period_idx; - uint8_t nb_of_frames_per_prach_conf_period; - uint8_t prach_conf_period_frame_idx; - - 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; - - if (setup->msg1_SubcarrierSpacing) - mu = *setup->msg1_SubcarrierSpacing; - else - mu = frequencyInfoDL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing; - - pointa = frequencyInfoDL->absoluteFrequencyPointA; - msg1_FDM = rach_ConfigGeneric->msg1_FDM; - - switch (msg1_FDM){ - case 0: - case 1: - case 2: - case 3: - nb_fdm = 1 << msg1_FDM; - break; - default: - AssertFatal(1 == 0, "Unknown msg1_FDM from rach_ConfigGeneric %d\n", msg1_FDM); - } - - // 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 - - // 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); - - if (pointa > 2016666) { //FR2 - - x = table_6_3_3_2_4_prachConfig_Index[config_index][2]; - y = table_6_3_3_2_4_prachConfig_Index[config_index][3]; - y2 = table_6_3_3_2_4_prachConfig_Index[config_index][4]; - - s_map = table_6_3_3_2_4_prachConfig_Index[config_index][5]; - - prach_conf_start_symbol = table_6_3_3_2_4_prachConfig_Index[config_index][6]; - N_t_slot = table_6_3_3_2_4_prachConfig_Index[config_index][8]; - N_dur = table_6_3_3_2_4_prachConfig_Index[config_index][9]; - if (table_6_3_3_2_4_prachConfig_Index[config_index][1] != -1) - format2 = (uint8_t) table_6_3_3_2_4_prachConfig_Index[config_index][1]; - format = ((uint8_t) table_6_3_3_2_4_prachConfig_Index[config_index][0]) | (format2<<8); - - slot_shift_for_map = mu-2; - if ( (mu == 3) && (table_6_3_3_2_4_prachConfig_Index[config_index][7] == 1) ) - even_slot_invalid = true; - else - even_slot_invalid = false; - } - else { // FR1 - if (unpaired) { - x = table_6_3_3_2_3_prachConfig_Index[config_index][2]; - y = table_6_3_3_2_3_prachConfig_Index[config_index][3]; - - s_map = table_6_3_3_2_3_prachConfig_Index[config_index][4]; - - prach_conf_start_symbol = table_6_3_3_2_3_prachConfig_Index[config_index][5]; - N_t_slot = table_6_3_3_2_3_prachConfig_Index[config_index][7]; - N_dur = table_6_3_3_2_3_prachConfig_Index[config_index][8]; - if (table_6_3_3_2_3_prachConfig_Index[config_index][1] != -1) - format2 = (uint8_t) table_6_3_3_2_3_prachConfig_Index[config_index][1]; - format = ((uint8_t) table_6_3_3_2_3_prachConfig_Index[config_index][0]) | (format2<<8); - } - else { // FDD - x = table_6_3_3_2_2_prachConfig_Index[config_index][2]; - y = table_6_3_3_2_2_prachConfig_Index[config_index][3]; - - s_map = table_6_3_3_2_2_prachConfig_Index[config_index][4]; - - prach_conf_start_symbol = table_6_3_3_2_2_prachConfig_Index[config_index][5]; - N_t_slot = table_6_3_3_2_2_prachConfig_Index[config_index][7]; - N_dur = table_6_3_3_2_2_prachConfig_Index[config_index][8]; - if (table_6_3_3_2_2_prachConfig_Index[config_index][1] != -1) - format2 = (uint8_t) table_6_3_3_2_2_prachConfig_Index[config_index][1]; - format = ((uint8_t) table_6_3_3_2_2_prachConfig_Index[config_index][0]) | (format2<<8); - } - - y2 = y; - slot_shift_for_map = mu; - if ( (mu == 1) && (table_6_3_3_2_3_prachConfig_Index[config_index][6] <= 1) ) - even_slot_invalid = true; - else - even_slot_invalid = false; - } // FR2 / FR1 - - prach_assoc_pattern.nb_of_prach_conf_period_in_max_period = MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD / x; - nb_of_frames_per_prach_conf_period = x; - - LOG_D(MAC,"nb_of_prach_conf_period_in_max_period %d\n", prach_assoc_pattern.nb_of_prach_conf_period_in_max_period); - - // Fill in the PRACH occasions table for every slot in every frame in every PRACH configuration periods in the maximum association pattern period - // ---------------------------------------------------------------------------------------------------------------------------------------------- - // ---------------------------------------------------------------------------------------------------------------------------------------------- - // For every PRACH configuration periods - // ------------------------------------- - for (prach_conf_period_idx=0; prach_conf_period_idx> slot_shift_for_map; // in PRACH configuration index table slots are numbered wrt 60kHz - if ( (s_map>>map_shift)&0x01 ) { - // Valid slot - - // Additionally, for 30kHz/120kHz, we must check for the n_RA_Slot param also - if ( even_slot_invalid && (slot%2 == 0) ) - continue; // no prach in even slots @ 30kHz/120kHz for 1 prach per 60khz slot/subframe - - // We're good: valid frame and valid slot - // Compute all the PRACH occasions in the slot - - uint8_t n_prach_occ_in_time; - uint8_t n_prach_occ_in_freq; - - prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].prach_occasion_slot_map[prach_conf_period_frame_idx][slot].nb_of_prach_occasion_in_time = N_t_slot; - prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].prach_occasion_slot_map[prach_conf_period_frame_idx][slot].nb_of_prach_occasion_in_freq = nb_fdm; - - for (n_prach_occ_in_time=0; n_prach_occ_in_timestart_symbol = start_symbol; - prach_occasion_p->fdm = n_prach_occ_in_freq; - prach_occasion_p->frame = frame; - prach_occasion_p->slot = slot; - prach_occasion_p->format = format; - prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].nb_of_prach_occasion++; - - LOG_D(MAC,"Adding a PRACH occasion: frame %u, slot-symbol %d-%d, occ_in_time-occ_in-freq %d-%d, nb ROs in conf period %d, for this slot: RO# in time %d, RO# in freq %d\n", - frame, slot, start_symbol, n_prach_occ_in_time, n_prach_occ_in_freq, prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].nb_of_prach_occasion, - prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].prach_occasion_slot_map[prach_conf_period_frame_idx][slot].nb_of_prach_occasion_in_time, - prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].prach_occasion_slot_map[prach_conf_period_frame_idx][slot].nb_of_prach_occasion_in_freq); - } // For every freq in the slot - } // For every time occasions in the slot - } // Valid slot? - } // For every slots in a frame - } // Valid frame? - } // For every frames in a prach configuration period - } // For every prach configuration periods in the maximum association pattern period (160ms) -} - -// Build the list of all the valid/transmitted SSBs according to the config -static void build_ssb_list(NR_ServingCellConfigCommon_t *scc) { - - // Create the list of transmitted SSBs - // =================================== - BIT_STRING_t *ssb_bitmap; - uint64_t ssb_positionsInBurst; - uint8_t ssb_idx = 0; - - switch (scc->ssb_PositionsInBurst->present) { - case NR_ServingCellConfigCommon__ssb_PositionsInBurst_PR_shortBitmap: - ssb_bitmap = &scc->ssb_PositionsInBurst->choice.shortBitmap; - - ssb_positionsInBurst = BIT_STRING_to_uint8(ssb_bitmap); - LOG_D(MAC,"SSB config: SSB_positions_in_burst 0x%lx\n", ssb_positionsInBurst); - - for (uint8_t bit_nb=3; bit_nb<=3; bit_nb--) { - // If SSB is transmitted - if ((ssb_positionsInBurst>>bit_nb) & 0x01) { - ssb_list.nb_tx_ssb++; - ssb_list.tx_ssb[ssb_idx].transmitted = true; - LOG_D(MAC,"SSB idx %d transmitted\n", ssb_idx); - } - ssb_idx++; - } - break; - case NR_ServingCellConfigCommon__ssb_PositionsInBurst_PR_mediumBitmap: - ssb_bitmap = &scc->ssb_PositionsInBurst->choice.mediumBitmap; - - ssb_positionsInBurst = BIT_STRING_to_uint8(ssb_bitmap); - LOG_D(MAC,"SSB config: SSB_positions_in_burst 0x%lx\n", ssb_positionsInBurst); - - for (uint8_t bit_nb=7; bit_nb<=7; bit_nb--) { - // If SSB is transmitted - if ((ssb_positionsInBurst>>bit_nb) & 0x01) { - ssb_list.nb_tx_ssb++; - ssb_list.tx_ssb[ssb_idx].transmitted = true; - LOG_D(MAC,"SSB idx %d transmitted\n", ssb_idx); - } - ssb_idx++; - } - break; - case NR_ServingCellConfigCommon__ssb_PositionsInBurst_PR_longBitmap: - ssb_bitmap = &scc->ssb_PositionsInBurst->choice.longBitmap; - - ssb_positionsInBurst = BIT_STRING_to_uint64(ssb_bitmap); - LOG_D(MAC,"SSB config: SSB_positions_in_burst 0x%lx\n", ssb_positionsInBurst); - - for (uint8_t bit_nb=63; bit_nb<=63; bit_nb--) { - // If SSB is transmitted - if ((ssb_positionsInBurst>>bit_nb) & 0x01) { - ssb_list.nb_tx_ssb++; - ssb_list.tx_ssb[ssb_idx].transmitted = true; - LOG_D(MAC,"SSB idx %d transmitted\n", ssb_idx); - } - ssb_idx++; - } - break; - default: - AssertFatal(false,"ssb_PositionsInBurst not present\n"); - break; - } -} - -// Map the transmitted SSBs to the ROs and create the association pattern according to the config -static void map_ssb_to_ro(NR_ServingCellConfigCommon_t *scc) { - - // Map SSBs to PRACH occasions - // =========================== - // WIP-IDCC: Assumption: No PRACH occasion is rejected because of a conflict with SSBs or TDD_UL_DL_ConfigurationCommon schedule - NR_RACH_ConfigCommon_t *setup = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup; - NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR ssb_perRACH_config = setup->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->present; - - boolean_t multiple_ssb_per_ro; // true if more than one or exactly one SSB per RACH occasion, false if more than one RO per SSB - uint8_t ssb_rach_ratio; // Nb of SSBs per RACH or RACHs per SSB - uint16_t required_nb_of_prach_occasion; // Nb of RACH occasions required to map all the SSBs - uint8_t required_nb_of_prach_conf_period; // Nb of PRACH configuration periods required to map all the SSBs - - // Determine the SSB to RACH mapping ratio - // ======================================= - switch (ssb_perRACH_config){ - case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_oneEighth: - multiple_ssb_per_ro = false; - ssb_rach_ratio = 8; - break; - case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_oneFourth: - multiple_ssb_per_ro = false; - ssb_rach_ratio = 4; - break; - case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_oneHalf: - multiple_ssb_per_ro = false; - ssb_rach_ratio = 2; - break; - case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_one: - multiple_ssb_per_ro = true; - ssb_rach_ratio = 1; - break; - case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_two: - multiple_ssb_per_ro = true; - ssb_rach_ratio = 2; - break; - case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_four: - multiple_ssb_per_ro = true; - ssb_rach_ratio = 4; - break; - case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_eight: - multiple_ssb_per_ro = true; - ssb_rach_ratio = 8; - break; - case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_sixteen: - multiple_ssb_per_ro = true; - ssb_rach_ratio = 16; - break; - default: - AssertFatal(1 == 0, "Unsupported ssb_perRACH_config %d\n", ssb_perRACH_config); - break; - } - LOG_D(MAC,"SSB rach ratio %d, Multiple SSB per RO %d\n", ssb_rach_ratio, multiple_ssb_per_ro); - - // Evaluate the number of PRACH configuration periods required to map all the SSBs and set the association period - // ============================================================================================================== - // 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 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; - } - else { - required_nb_of_prach_occasion = ssb_list.nb_tx_ssb * ssb_rach_ratio; - } - - required_nb_of_prach_conf_period = ((required_nb_of_prach_occasion-1) + prach_assoc_pattern.prach_conf_period_list[0].nb_of_prach_occasion) / prach_assoc_pattern.prach_conf_period_list[0].nb_of_prach_occasion; - - if (required_nb_of_prach_conf_period == 1) { - prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 1; - } - else if (required_nb_of_prach_conf_period == 2) { - prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 2; - } - else if (required_nb_of_prach_conf_period <= 4) { - prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 4; - } - else if (required_nb_of_prach_conf_period <= 8) { - prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 8; - } - else if (required_nb_of_prach_conf_period <= 16) { - prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 16; - } - else { - AssertFatal(1 == 0, "Invalid number of PRACH config periods within an association period %d\n", required_nb_of_prach_conf_period); - } - - prach_assoc_pattern.nb_of_assoc_period = 1; // WIP-IDCC: only one possible association period - prach_assoc_pattern.prach_association_period_list[0].nb_of_frame = prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period * prach_assoc_pattern.prach_conf_period_list[0].nb_of_frame; - prach_assoc_pattern.nb_of_frame = prach_assoc_pattern.prach_association_period_list[0].nb_of_frame; - - LOG_D(MAC,"Assoc period %d, Nb of frames in assoc period %d\n", - prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period, - prach_assoc_pattern.prach_association_period_list[0].nb_of_frame); - - // Proceed to the SSB to RO mapping - // ================================ - uint8_t association_period_idx; // Association period index within the association pattern - uint8_t ssb_idx = 0; - uint8_t prach_configuration_period_idx; // PRACH Configuration period index within the association pattern - prach_conf_period_t *prach_conf_period_p; - - // Map all the association periods within the association pattern period - LOG_D(MAC,"Proceed to the SSB to RO mapping\n"); - for (association_period_idx=0; association_period_idxnb_of_frame; frame++) { - for (slot=0; slotnb_of_slot; slot++) { - for (ro_in_time=0; ro_in_timeprach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_time; ro_in_time++) { - for (ro_in_freq=0; ro_in_freqprach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_freq; ro_in_freq++) { - prach_occasion_info_t *ro_p = &prach_conf_period_p->prach_occasion_slot_map[frame][slot].prach_occasion[ro_in_time][ro_in_freq]; - - // 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_idxmapped_ssb_idx[ro_p->nb_mapped_ssb] = ssb_idx; - ro_p->nb_mapped_ssb++; - ssb_list.tx_ssb[ssb_idx].mapped_ro[ssb_list.tx_ssb[ssb_idx].nb_mapped_ro] = ro_p; - ssb_list.tx_ssb[ssb_idx].nb_mapped_ro++; - AssertFatal(MAX_NB_RO_PER_SSB_IN_ASSOCIATION_PATTERN > ssb_list.tx_ssb[ssb_idx].nb_mapped_ro,"Too many mapped ROs (%d) to a single SSB\n", ssb_list.tx_ssb[ssb_idx].nb_mapped_ro); - - LOG_D(MAC,"Mapped ssb_idx %u to RO slot-symbol %u-%u, %u-%u-%u/%u\n", ssb_idx, ro_p->slot, ro_p->start_symbol, slot, ro_in_time, ro_in_freq, prach_conf_period_p->prach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_freq); - LOG_D(MAC,"Nb mapped ROs for this ssb idx: in the association period only %u\n", ssb_list.tx_ssb[ssb_idx].nb_mapped_ro); - - // If all the required SSBs are mapped to this RO, exit the loop of SSBs - if (ro_p->nb_mapped_ssb == ssb_rach_ratio) { - ssb_idx++; - break; - } - } // if ssb_idx is transmitted - } // for ssb_idx - - // Exit the loop of ROs if there is no more SSB to map - if (MAX_NB_SSB == ssb_idx) break; - } // for ro_in_freq - - // Exit the loop of ROs if there is no more SSB to map - if (MAX_NB_SSB == ssb_idx) break; - } // for ro_in_time - - // Exit the loop of slots if there is no more SSB to map - if (MAX_NB_SSB == ssb_idx) break; - } // for slot - - // Exit the loop frames if there is no more SSB to map - if (MAX_NB_SSB == ssb_idx) break; - } // for frame - - // Exit the loop of PRACH configurations if there is no more SSB to map - if (MAX_NB_SSB == ssb_idx) break; - } // for n_prach_conf - - // WIP-IDCC: note that there is no re-mapping of the SSBs within the association period since there is no invalid ROs in the PRACH config periods that would create this situation - - } // if multiple_ssbs_per_ro - - else { - // -------------------- - // -------------------- - // Multiple ROs per SSB - // -------------------- - // -------------------- - - n_prach_conf = 0; - - // Go through the list of transmitted SSBs - for (ssb_idx=0; ssb_idxnb_of_frame; frame++) { - for (; slotnb_of_slot; slot++) { - for (; ro_in_timeprach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_time; ro_in_time++) { - for (; ro_in_freqprach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_freq; ro_in_freq++) { - prach_occasion_info_t *ro_p = &prach_conf_period_p->prach_occasion_slot_map[frame][slot].prach_occasion[ro_in_time][ro_in_freq]; - - ro_p->mapped_ssb_idx[0] = ssb_idx; - ro_p->nb_mapped_ssb = 1; - ssb_list.tx_ssb[ssb_idx].mapped_ro[ssb_list.tx_ssb[ssb_idx].nb_mapped_ro] = ro_p; - ssb_list.tx_ssb[ssb_idx].nb_mapped_ro++; - AssertFatal(MAX_NB_RO_PER_SSB_IN_ASSOCIATION_PATTERN > ssb_list.tx_ssb[ssb_idx].nb_mapped_ro,"Too many mapped ROs (%d) to a single SSB\n", ssb_list.tx_ssb[ssb_idx].nb_mapped_ro); - nb_mapped_ro_in_association_period++; - - LOG_D(MAC,"Mapped ssb_idx %u to RO slot-symbol %u-%u, %u-%u-%u/%u\n", ssb_idx, ro_p->slot, ro_p->start_symbol, slot, ro_in_time, ro_in_freq, prach_conf_period_p->prach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_freq); - LOG_D(MAC,"Nb mapped ROs for this ssb idx: in the association period only %u / total %u\n", ssb_list.tx_ssb[ssb_idx].nb_mapped_ro, nb_mapped_ro_in_association_period); - - // Exit the loop if this SSB has been mapped to all the required ROs - // WIP: Assuming that ssb_rach_ratio equals the maximum nb of times a given ssb_idx is mapped within an association period: - // this is true if no PRACH occasions are conflicting with SSBs nor TDD_UL_DL_ConfigurationCommon schedule - if (nb_mapped_ro_in_association_period == ssb_rach_ratio) { - ro_in_freq++; - break; - } - } // for ro_in_freq - - // Exit the loop if this SSB has been mapped to all the required ROs - if (nb_mapped_ro_in_association_period == ssb_rach_ratio) { - break; - } - else ro_in_freq = 0; // else go to the next time symbol in that slot and reset the freq index - } // for ro_in_time - - // Exit the loop if this SSB has been mapped to all the required ROs - if (nb_mapped_ro_in_association_period == ssb_rach_ratio) { - break; - } - else ro_in_time = 0; // else go to the next slot in that PRACH config period and reset the symbol index - } // for slot - - // Exit the loop if this SSB has been mapped to all the required ROs - if (nb_mapped_ro_in_association_period == ssb_rach_ratio) { - break; - } - else slot = 0; // else go to the next frame in that PRACH config period and reset the slot index - } // for frame - - // Exit the loop if this SSB has been mapped to all the required ROs - if (nb_mapped_ro_in_association_period == ssb_rach_ratio) { - break; - } - else frame = 0; // else go to the next PRACH config period in that association period and reset the frame index - } // for n_prach_conf - - } // if ssb_idx is transmitted - } // for ssb_idx - } // else if multiple_ssbs_per_ro - - } // for association_period_index -} - -// Build the SSB to RO mapping upon RRC configuration update -void build_ssb_to_ro_map(NR_ServingCellConfigCommon_t *scc, uint8_t unpaired){ - - // Clear all the lists and maps - memset(&prach_assoc_pattern, 0, sizeof(prach_association_pattern_t)); - memset(&ssb_list, 0, sizeof(ssb_list_info_t)); - - // Build the list of all the valid RACH occasions in the maximum association pattern period according to the PRACH config - LOG_D(MAC,"Build RO list\n"); - build_ro_list(scc, unpaired); - - // Build the list of all the valid/transmitted SSBs according to the config - LOG_D(MAC,"Build SSB list\n"); - build_ssb_list(scc); - - // Map the transmitted SSBs to the ROs and create the association pattern according to the config - LOG_D(MAC,"Map SSB to RO\n"); - map_ssb_to_ro(scc); - LOG_D(MAC,"Map SSB to RO done\n"); -} - -// Returns a RACH occasion if any matches the SSB idx, the frame and the slot -int get_nr_prach_info_from_ssb_index(uint8_t ssb_idx, - int frame, - int slot, - prach_occasion_info_t **prach_occasion_info_pp) { - - ssb_info_t *ssb_info_p; - prach_occasion_slot_t *prach_occasion_slot_p = NULL; - - *prach_occasion_info_pp = NULL; - - // Search for a matching RO slot in the SSB_to_RO map - // A valid RO slot will match: - // - ssb_idx mapped to one of the ROs in that RO slot - // - exact slot number - // - frame offset - ssb_info_p = &ssb_list.tx_ssb[ssb_idx]; - for (uint8_t n_mapped_ro=0; n_mapped_ronb_mapped_ro; n_mapped_ro++) { - if ((slot == ssb_info_p->mapped_ro[n_mapped_ro]->slot) && - (ssb_info_p->mapped_ro[n_mapped_ro]->frame == (frame % prach_assoc_pattern.nb_of_frame))) { - - uint8_t prach_config_period_nb = ssb_info_p->mapped_ro[n_mapped_ro]->frame / prach_assoc_pattern.prach_conf_period_list[0].nb_of_frame; - uint8_t frame_nb_in_prach_config_period = ssb_info_p->mapped_ro[n_mapped_ro]->frame % prach_assoc_pattern.prach_conf_period_list[0].nb_of_frame; - prach_occasion_slot_p = &prach_assoc_pattern.prach_conf_period_list[prach_config_period_nb].prach_occasion_slot_map[frame_nb_in_prach_config_period][slot]; - } - } - - // If there is a matching RO slot in the SSB_to_RO map - if (NULL != prach_occasion_slot_p) - { - // A random RO mapped to the SSB index should be selected in the slot - - // First count the number of times the SSB index is found in that RO - uint8_t 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) { - 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++; - } - } - } - } - } - } - - return 0; -} - int get_nr_prach_occasion_info_from_index(uint8_t index, uint32_t pointa, uint8_t mu, diff --git a/openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.h b/openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.h index a644864473..f65e68a26f 100644 --- a/openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.h +++ b/openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.h @@ -120,9 +120,6 @@ void find_monitoring_periodicity_offset_common(NR_SearchSpace_t *ss, uint16_t *slot_period, uint16_t *offset); -void build_ssb_to_ro_map(NR_ServingCellConfigCommon_t *scc, uint8_t unpaired); -int get_nr_prach_info_from_ssb_index(uint8_t ssb_idx, int frame, int slot, prach_occasion_info_t **prach_occasion_info_pp); - int get_nr_prach_info_from_index(uint8_t index, int frame, int slot, @@ -166,6 +163,10 @@ int ul_ant_bits(NR_DMRS_UplinkConfig_t *NR_DMRS_UplinkConfig,long transformPreco int get_format0(uint8_t index, uint8_t unpaired); +int64_t *get_prach_config_info(uint32_t pointa, + uint8_t index, + uint8_t unpaired); + uint16_t get_NCS(uint8_t index, uint16_t format, uint8_t restricted_set_config); int get_num_dmrs(uint16_t dmrs_mask ); diff --git a/openair2/LAYER2/NR_MAC_UE/mac_proto.h b/openair2/LAYER2/NR_MAC_UE/mac_proto.h index 9e18180b91..84e331091e 100755 --- a/openair2/LAYER2/NR_MAC_UE/mac_proto.h +++ b/openair2/LAYER2/NR_MAC_UE/mac_proto.h @@ -306,5 +306,8 @@ void get_num_re_dmrs(nfapi_nr_ue_pusch_pdu_t *pusch_pdu, uint8_t *nb_dmrs_re_per_rb, uint16_t *number_dmrs_symbols); +void build_ssb_to_ro_map(NR_ServingCellConfigCommon_t *scc, uint8_t unpaired); + + #endif /** @}*/ diff --git a/openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c b/openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c index d8765c1055..257fcc4c7d 100644 --- a/openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c +++ b/openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c @@ -64,6 +64,10 @@ /* utils */ #include "assertions.h" +/* Tools */ +#include "asn1_conversions.h" +#include "SIMULATION/TOOLS/sim.h" // for taus + #include "common/utils/LOG/log.h" #include "SIMULATION/TOOLS/sim.h" // for taus #include "openair2/LAYER2/NR_MAC_COMMON/nr_mac.h" @@ -72,12 +76,73 @@ #include #include +// ================================================ +// SSB to RO mapping private defines and structures +// ================================================ + +#define MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PERIOD (16) // Maximum association period is 16 +#define MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD (16) // Max association pattern period is 160ms and minimum PRACH configuration period is 10ms +#define MAX_NB_ASSOCIATION_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD (16) // Max nb of association periods in an association pattern period of 160ms +#define MAX_NB_FRAME_IN_PRACH_CONF_PERIOD (16) // Max PRACH configuration period is 160ms and frame is 10ms +#define MAX_NB_SLOT_IN_FRAME (160) // Max number of slots in a frame (@ SCS 240kHz = 160) +#define MAX_NB_FRAME_IN_ASSOCIATION_PATTERN_PERIOD (16) // Maximum number of frames in the maximum association pattern period +#define MAX_NB_SSB (64) // Maximum number of possible SSB indexes +#define MAX_RO_PER_SSB (8) // Maximum number of consecutive ROs that can be mapped to an SSB according to the ssb_per_RACH config + +// Maximum number of ROs that can be mapped to an SSB in an association pattern +// This is to reserve enough elements in the SSBs list for each mapped ROs for a single SSB +// An arbitrary maximum number is chosen to be safe: maximum number of slots in an association pattern * maximum number of ROs in a slot +#define MAX_NB_RO_PER_SSB_IN_ASSOCIATION_PATTERN (MAX_TDM*MAX_FDM*MAX_NB_SLOT_IN_FRAME*MAX_NB_FRAME_IN_ASSOCIATION_PATTERN_PERIOD) + +// The PRACH Config period is a series of selected slots in one or multiple frames +typedef struct prach_conf_period { + prach_occasion_slot_t prach_occasion_slot_map[MAX_NB_FRAME_IN_PRACH_CONF_PERIOD][MAX_NB_SLOT_IN_FRAME]; + uint16_t nb_of_prach_occasion; // Total number of PRACH occasions in the PRACH Config period + uint8_t nb_of_frame; // Size of the PRACH Config period in number of 10ms frames + uint8_t nb_of_slot; // Nb of slots in each frame +} prach_conf_period_t; + +// The association period is a series of PRACH Config periods +typedef struct prach_association_period { + prach_conf_period_t *prach_conf_period_list[MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PERIOD]; + uint8_t nb_of_prach_conf_period; // Nb of PRACH configuration periods within the association period + uint8_t nb_of_frame; // Total number of frames included in the association period +} prach_association_period_t; + +// The association pattern is a series of Association periods +typedef struct prach_association_pattern { + prach_association_period_t prach_association_period_list[MAX_NB_ASSOCIATION_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD]; + prach_conf_period_t prach_conf_period_list[MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD]; + uint8_t nb_of_assoc_period; // Nb of association periods within the association pattern + uint8_t nb_of_prach_conf_period_in_max_period; // Nb of PRACH configuration periods within the maximum association pattern period (according to the size of the configured PRACH + uint8_t nb_of_frame; // Total number of frames included in the association pattern period (after mapping the SSBs and determining the real association pattern length) +} prach_association_pattern_t; + +// SSB details +typedef struct ssb_info { + boolean_t transmitted; // True if the SSB index is transmitted according to the SSB positions map configuration + prach_occasion_info_t *mapped_ro[MAX_NB_RO_PER_SSB_IN_ASSOCIATION_PATTERN]; // List of mapped RACH Occasions to this SSB index + uint16_t nb_mapped_ro; // Total number of mapped ROs to this SSB index +} ssb_info_t; + +// List of all the possible SSBs and their details +typedef struct ssb_list_info { + ssb_info_t tx_ssb[MAX_NB_SSB]; + uint8_t nb_tx_ssb; +} ssb_list_info_t; + +static prach_association_pattern_t prach_assoc_pattern; +static ssb_list_info_t ssb_list; + +// =============================================== +// =============================================== + //#define ENABLE_MAC_PAYLOAD_DEBUG 1 #define DEBUG_EXTRACT_DCI 1 extern int bwp_id; extern dci_pdu_rel15_t *def_dci_pdu_rel15; -extern const uint16_t nr_slots_per_frame[5]; +extern const uint8_t nr_slots_per_frame[5]; extern void mac_rlc_data_ind ( const module_id_t module_idP, @@ -92,6 +157,617 @@ extern void mac_rlc_data_ind ( num_tb_t num_tbP, crc_t *crcs_pP); +// Build the list of all the valid RACH occasions in the maximum association pattern period according to the PRACH config +static void build_ro_list(NR_ServingCellConfigCommon_t *scc, uint8_t unpaired) { + + int x,y; // PRACH Configuration Index table variables used to compute the valid frame numbers + int y2; // PRACH Configuration Index table additional variable used to compute the valid frame numbers + uint8_t slot_shift_for_map; + uint8_t map_shift; + boolean_t even_slot_invalid; + int64_t s_map; + uint8_t prach_conf_start_symbol; // Starting symbol of the PRACH occasions in the PRACH slot + uint8_t N_t_slot; // Number of PRACH occasions in a 14-symbols PRACH slot + uint8_t N_dur; // Duration of a PRACH occasion (nb of symbols) + uint8_t frame; // Maximum is NB_FRAMES_IN_MAX_ASSOCIATION_PATTERN_PERIOD + uint8_t slot; // Maximum is the number of slots in a frame @ SCS 240kHz + uint16_t format = 0xffff; + uint8_t format2 = 0xff; + int nb_fdm; + + uint8_t config_index, mu; + uint32_t pointa; + int msg1_FDM; + + uint8_t prach_conf_period_idx; + uint8_t nb_of_frames_per_prach_conf_period; + uint8_t prach_conf_period_frame_idx; + int64_t *prach_config_info_p; + + 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; + + if (setup->msg1_SubcarrierSpacing) + mu = *setup->msg1_SubcarrierSpacing; + else + mu = frequencyInfoDL->scs_SpecificCarrierList.list.array[0]->subcarrierSpacing; + + pointa = frequencyInfoDL->absoluteFrequencyPointA; + msg1_FDM = rach_ConfigGeneric->msg1_FDM; + + switch (msg1_FDM){ + case 0: + case 1: + case 2: + case 3: + nb_fdm = 1 << msg1_FDM; + break; + default: + AssertFatal(1 == 0, "Unknown msg1_FDM from rach_ConfigGeneric %d\n", msg1_FDM); + } + + // 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 + + // 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); + + prach_config_info_p = get_prach_config_info(pointa, config_index, unpaired); + + if (pointa > 2016666) { //FR2 + + x = prach_config_info_p[2]; + y = prach_config_info_p[3]; + y2 = prach_config_info_p[4]; + + s_map = prach_config_info_p[5]; + + prach_conf_start_symbol = prach_config_info_p[6]; + N_t_slot = prach_config_info_p[8]; + N_dur = prach_config_info_p[9]; + if (prach_config_info_p[1] != -1) + format2 = (uint8_t) prach_config_info_p[1]; + format = ((uint8_t) prach_config_info_p[0]) | (format2<<8); + + slot_shift_for_map = mu-2; + if ( (mu == 3) && (prach_config_info_p[7] == 1) ) + even_slot_invalid = true; + else + even_slot_invalid = false; + } + else { // FR1 + x = prach_config_info_p[2]; + y = prach_config_info_p[3]; + y2 = y; + + s_map = prach_config_info_p[4]; + + prach_conf_start_symbol = prach_config_info_p[5]; + N_t_slot = prach_config_info_p[7]; + N_dur = prach_config_info_p[8]; + if (prach_config_info_p[1] != -1) + format2 = (uint8_t) prach_config_info_p[1]; + format = ((uint8_t) prach_config_info_p[0]) | (format2<<8); + + slot_shift_for_map = mu; + if ( (mu == 1) && (prach_config_info_p[6] <= 1) ) + // no prach in even slots @ 30kHz for 1 prach per subframe + even_slot_invalid = true; + else + even_slot_invalid = false; + } // FR2 / FR1 + + prach_assoc_pattern.nb_of_prach_conf_period_in_max_period = MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD / x; + nb_of_frames_per_prach_conf_period = x; + + LOG_D(MAC,"nb_of_prach_conf_period_in_max_period %d\n", prach_assoc_pattern.nb_of_prach_conf_period_in_max_period); + + // Fill in the PRACH occasions table for every slot in every frame in every PRACH configuration periods in the maximum association pattern period + // ---------------------------------------------------------------------------------------------------------------------------------------------- + // ---------------------------------------------------------------------------------------------------------------------------------------------- + // For every PRACH configuration periods + // ------------------------------------- + for (prach_conf_period_idx=0; prach_conf_period_idx> slot_shift_for_map; // in PRACH configuration index table slots are numbered wrt 60kHz + if ( (s_map>>map_shift)&0x01 ) { + // Valid slot + + // Additionally, for 30kHz/120kHz, we must check for the n_RA_Slot param also + if ( even_slot_invalid && (slot%2 == 0) ) + continue; // no prach in even slots @ 30kHz/120kHz for 1 prach per 60khz slot/subframe + + // We're good: valid frame and valid slot + // Compute all the PRACH occasions in the slot + + uint8_t n_prach_occ_in_time; + uint8_t n_prach_occ_in_freq; + + prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].prach_occasion_slot_map[prach_conf_period_frame_idx][slot].nb_of_prach_occasion_in_time = N_t_slot; + prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].prach_occasion_slot_map[prach_conf_period_frame_idx][slot].nb_of_prach_occasion_in_freq = nb_fdm; + + for (n_prach_occ_in_time=0; n_prach_occ_in_timestart_symbol = start_symbol; + prach_occasion_p->fdm = n_prach_occ_in_freq; + prach_occasion_p->frame = frame; + prach_occasion_p->slot = slot; + prach_occasion_p->format = format; + prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].nb_of_prach_occasion++; + + LOG_D(MAC,"Adding a PRACH occasion: frame %u, slot-symbol %d-%d, occ_in_time-occ_in-freq %d-%d, nb ROs in conf period %d, for this slot: RO# in time %d, RO# in freq %d\n", + frame, slot, start_symbol, n_prach_occ_in_time, n_prach_occ_in_freq, prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].nb_of_prach_occasion, + prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].prach_occasion_slot_map[prach_conf_period_frame_idx][slot].nb_of_prach_occasion_in_time, + prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].prach_occasion_slot_map[prach_conf_period_frame_idx][slot].nb_of_prach_occasion_in_freq); + } // For every freq in the slot + } // For every time occasions in the slot + } // Valid slot? + } // For every slots in a frame + } // Valid frame? + } // For every frames in a prach configuration period + } // For every prach configuration periods in the maximum association pattern period (160ms) +} + +// Build the list of all the valid/transmitted SSBs according to the config +static void build_ssb_list(NR_ServingCellConfigCommon_t *scc) { + + // Create the list of transmitted SSBs + // =================================== + BIT_STRING_t *ssb_bitmap; + uint64_t ssb_positionsInBurst; + uint8_t ssb_idx = 0; + + switch (scc->ssb_PositionsInBurst->present) { + case NR_ServingCellConfigCommon__ssb_PositionsInBurst_PR_shortBitmap: + ssb_bitmap = &scc->ssb_PositionsInBurst->choice.shortBitmap; + + ssb_positionsInBurst = BIT_STRING_to_uint8(ssb_bitmap); + LOG_D(MAC,"SSB config: SSB_positions_in_burst 0x%lx\n", ssb_positionsInBurst); + + for (uint8_t bit_nb=3; bit_nb<=3; bit_nb--) { + // If SSB is transmitted + if ((ssb_positionsInBurst>>bit_nb) & 0x01) { + ssb_list.nb_tx_ssb++; + ssb_list.tx_ssb[ssb_idx].transmitted = true; + LOG_D(MAC,"SSB idx %d transmitted\n", ssb_idx); + } + ssb_idx++; + } + break; + case NR_ServingCellConfigCommon__ssb_PositionsInBurst_PR_mediumBitmap: + ssb_bitmap = &scc->ssb_PositionsInBurst->choice.mediumBitmap; + + ssb_positionsInBurst = BIT_STRING_to_uint8(ssb_bitmap); + LOG_D(MAC,"SSB config: SSB_positions_in_burst 0x%lx\n", ssb_positionsInBurst); + + for (uint8_t bit_nb=7; bit_nb<=7; bit_nb--) { + // If SSB is transmitted + if ((ssb_positionsInBurst>>bit_nb) & 0x01) { + ssb_list.nb_tx_ssb++; + ssb_list.tx_ssb[ssb_idx].transmitted = true; + LOG_D(MAC,"SSB idx %d transmitted\n", ssb_idx); + } + ssb_idx++; + } + break; + case NR_ServingCellConfigCommon__ssb_PositionsInBurst_PR_longBitmap: + ssb_bitmap = &scc->ssb_PositionsInBurst->choice.longBitmap; + + ssb_positionsInBurst = BIT_STRING_to_uint64(ssb_bitmap); + LOG_D(MAC,"SSB config: SSB_positions_in_burst 0x%lx\n", ssb_positionsInBurst); + + for (uint8_t bit_nb=63; bit_nb<=63; bit_nb--) { + // If SSB is transmitted + if ((ssb_positionsInBurst>>bit_nb) & 0x01) { + ssb_list.nb_tx_ssb++; + ssb_list.tx_ssb[ssb_idx].transmitted = true; + LOG_D(MAC,"SSB idx %d transmitted\n", ssb_idx); + } + ssb_idx++; + } + break; + default: + AssertFatal(false,"ssb_PositionsInBurst not present\n"); + break; + } +} + +// Map the transmitted SSBs to the ROs and create the association pattern according to the config +static void map_ssb_to_ro(NR_ServingCellConfigCommon_t *scc) { + + // Map SSBs to PRACH occasions + // =========================== + // WIP-IDCC: Assumption: No PRACH occasion is rejected because of a conflict with SSBs or TDD_UL_DL_ConfigurationCommon schedule + NR_RACH_ConfigCommon_t *setup = scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup; + NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR ssb_perRACH_config = setup->ssb_perRACH_OccasionAndCB_PreamblesPerSSB->present; + + boolean_t multiple_ssb_per_ro; // true if more than one or exactly one SSB per RACH occasion, false if more than one RO per SSB + uint8_t ssb_rach_ratio; // Nb of SSBs per RACH or RACHs per SSB + uint16_t required_nb_of_prach_occasion; // Nb of RACH occasions required to map all the SSBs + uint8_t required_nb_of_prach_conf_period; // Nb of PRACH configuration periods required to map all the SSBs + + // Determine the SSB to RACH mapping ratio + // ======================================= + switch (ssb_perRACH_config){ + case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_oneEighth: + multiple_ssb_per_ro = false; + ssb_rach_ratio = 8; + break; + case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_oneFourth: + multiple_ssb_per_ro = false; + ssb_rach_ratio = 4; + break; + case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_oneHalf: + multiple_ssb_per_ro = false; + ssb_rach_ratio = 2; + break; + case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_one: + multiple_ssb_per_ro = true; + ssb_rach_ratio = 1; + break; + case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_two: + multiple_ssb_per_ro = true; + ssb_rach_ratio = 2; + break; + case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_four: + multiple_ssb_per_ro = true; + ssb_rach_ratio = 4; + break; + case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_eight: + multiple_ssb_per_ro = true; + ssb_rach_ratio = 8; + break; + case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_sixteen: + multiple_ssb_per_ro = true; + ssb_rach_ratio = 16; + break; + default: + AssertFatal(1 == 0, "Unsupported ssb_perRACH_config %d\n", ssb_perRACH_config); + break; + } + LOG_D(MAC,"SSB rach ratio %d, Multiple SSB per RO %d\n", ssb_rach_ratio, multiple_ssb_per_ro); + + // Evaluate the number of PRACH configuration periods required to map all the SSBs and set the association period + // ============================================================================================================== + // 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 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; + } + else { + required_nb_of_prach_occasion = ssb_list.nb_tx_ssb * ssb_rach_ratio; + } + + required_nb_of_prach_conf_period = ((required_nb_of_prach_occasion-1) + prach_assoc_pattern.prach_conf_period_list[0].nb_of_prach_occasion) / prach_assoc_pattern.prach_conf_period_list[0].nb_of_prach_occasion; + + if (required_nb_of_prach_conf_period == 1) { + prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 1; + } + else if (required_nb_of_prach_conf_period == 2) { + prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 2; + } + else if (required_nb_of_prach_conf_period <= 4) { + prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 4; + } + else if (required_nb_of_prach_conf_period <= 8) { + prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 8; + } + else if (required_nb_of_prach_conf_period <= 16) { + prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period = 16; + } + else { + AssertFatal(1 == 0, "Invalid number of PRACH config periods within an association period %d\n", required_nb_of_prach_conf_period); + } + + prach_assoc_pattern.nb_of_assoc_period = 1; // WIP-IDCC: only one possible association period + prach_assoc_pattern.prach_association_period_list[0].nb_of_frame = prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period * prach_assoc_pattern.prach_conf_period_list[0].nb_of_frame; + prach_assoc_pattern.nb_of_frame = prach_assoc_pattern.prach_association_period_list[0].nb_of_frame; + + LOG_D(MAC,"Assoc period %d, Nb of frames in assoc period %d\n", + prach_assoc_pattern.prach_association_period_list[0].nb_of_prach_conf_period, + prach_assoc_pattern.prach_association_period_list[0].nb_of_frame); + + // Proceed to the SSB to RO mapping + // ================================ + uint8_t association_period_idx; // Association period index within the association pattern + uint8_t ssb_idx = 0; + uint8_t prach_configuration_period_idx; // PRACH Configuration period index within the association pattern + prach_conf_period_t *prach_conf_period_p; + + // Map all the association periods within the association pattern period + LOG_D(MAC,"Proceed to the SSB to RO mapping\n"); + for (association_period_idx=0; association_period_idxnb_of_frame; frame++) { + for (slot=0; slotnb_of_slot; slot++) { + for (ro_in_time=0; ro_in_timeprach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_time; ro_in_time++) { + for (ro_in_freq=0; ro_in_freqprach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_freq; ro_in_freq++) { + prach_occasion_info_t *ro_p = &prach_conf_period_p->prach_occasion_slot_map[frame][slot].prach_occasion[ro_in_time][ro_in_freq]; + + // 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_idxmapped_ssb_idx[ro_p->nb_mapped_ssb] = ssb_idx; + ro_p->nb_mapped_ssb++; + ssb_list.tx_ssb[ssb_idx].mapped_ro[ssb_list.tx_ssb[ssb_idx].nb_mapped_ro] = ro_p; + ssb_list.tx_ssb[ssb_idx].nb_mapped_ro++; + AssertFatal(MAX_NB_RO_PER_SSB_IN_ASSOCIATION_PATTERN > ssb_list.tx_ssb[ssb_idx].nb_mapped_ro,"Too many mapped ROs (%d) to a single SSB\n", ssb_list.tx_ssb[ssb_idx].nb_mapped_ro); + + LOG_D(MAC,"Mapped ssb_idx %u to RO slot-symbol %u-%u, %u-%u-%u/%u\n", ssb_idx, ro_p->slot, ro_p->start_symbol, slot, ro_in_time, ro_in_freq, prach_conf_period_p->prach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_freq); + LOG_D(MAC,"Nb mapped ROs for this ssb idx: in the association period only %u\n", ssb_list.tx_ssb[ssb_idx].nb_mapped_ro); + + // If all the required SSBs are mapped to this RO, exit the loop of SSBs + if (ro_p->nb_mapped_ssb == ssb_rach_ratio) { + ssb_idx++; + break; + } + } // if ssb_idx is transmitted + } // for ssb_idx + + // Exit the loop of ROs if there is no more SSB to map + if (MAX_NB_SSB == ssb_idx) break; + } // for ro_in_freq + + // Exit the loop of ROs if there is no more SSB to map + if (MAX_NB_SSB == ssb_idx) break; + } // for ro_in_time + + // Exit the loop of slots if there is no more SSB to map + if (MAX_NB_SSB == ssb_idx) break; + } // for slot + + // Exit the loop frames if there is no more SSB to map + if (MAX_NB_SSB == ssb_idx) break; + } // for frame + + // Exit the loop of PRACH configurations if there is no more SSB to map + if (MAX_NB_SSB == ssb_idx) break; + } // for n_prach_conf + + // WIP-IDCC: note that there is no re-mapping of the SSBs within the association period since there is no invalid ROs in the PRACH config periods that would create this situation + + } // if multiple_ssbs_per_ro + + else { + // -------------------- + // -------------------- + // Multiple ROs per SSB + // -------------------- + // -------------------- + + n_prach_conf = 0; + + // Go through the list of transmitted SSBs + for (ssb_idx=0; ssb_idxnb_of_frame; frame++) { + for (; slotnb_of_slot; slot++) { + for (; ro_in_timeprach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_time; ro_in_time++) { + for (; ro_in_freqprach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_freq; ro_in_freq++) { + prach_occasion_info_t *ro_p = &prach_conf_period_p->prach_occasion_slot_map[frame][slot].prach_occasion[ro_in_time][ro_in_freq]; + + ro_p->mapped_ssb_idx[0] = ssb_idx; + ro_p->nb_mapped_ssb = 1; + ssb_list.tx_ssb[ssb_idx].mapped_ro[ssb_list.tx_ssb[ssb_idx].nb_mapped_ro] = ro_p; + ssb_list.tx_ssb[ssb_idx].nb_mapped_ro++; + AssertFatal(MAX_NB_RO_PER_SSB_IN_ASSOCIATION_PATTERN > ssb_list.tx_ssb[ssb_idx].nb_mapped_ro,"Too many mapped ROs (%d) to a single SSB\n", ssb_list.tx_ssb[ssb_idx].nb_mapped_ro); + nb_mapped_ro_in_association_period++; + + LOG_D(MAC,"Mapped ssb_idx %u to RO slot-symbol %u-%u, %u-%u-%u/%u\n", ssb_idx, ro_p->slot, ro_p->start_symbol, slot, ro_in_time, ro_in_freq, prach_conf_period_p->prach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_freq); + LOG_D(MAC,"Nb mapped ROs for this ssb idx: in the association period only %u / total %u\n", ssb_list.tx_ssb[ssb_idx].nb_mapped_ro, nb_mapped_ro_in_association_period); + + // Exit the loop if this SSB has been mapped to all the required ROs + // WIP: Assuming that ssb_rach_ratio equals the maximum nb of times a given ssb_idx is mapped within an association period: + // this is true if no PRACH occasions are conflicting with SSBs nor TDD_UL_DL_ConfigurationCommon schedule + if (nb_mapped_ro_in_association_period == ssb_rach_ratio) { + ro_in_freq++; + break; + } + } // for ro_in_freq + + // Exit the loop if this SSB has been mapped to all the required ROs + if (nb_mapped_ro_in_association_period == ssb_rach_ratio) { + break; + } + else ro_in_freq = 0; // else go to the next time symbol in that slot and reset the freq index + } // for ro_in_time + + // Exit the loop if this SSB has been mapped to all the required ROs + if (nb_mapped_ro_in_association_period == ssb_rach_ratio) { + break; + } + else ro_in_time = 0; // else go to the next slot in that PRACH config period and reset the symbol index + } // for slot + + // Exit the loop if this SSB has been mapped to all the required ROs + if (nb_mapped_ro_in_association_period == ssb_rach_ratio) { + break; + } + else slot = 0; // else go to the next frame in that PRACH config period and reset the slot index + } // for frame + + // Exit the loop if this SSB has been mapped to all the required ROs + if (nb_mapped_ro_in_association_period == ssb_rach_ratio) { + break; + } + else frame = 0; // else go to the next PRACH config period in that association period and reset the frame index + } // for n_prach_conf + + } // if ssb_idx is transmitted + } // for ssb_idx + } // else if multiple_ssbs_per_ro + + } // for association_period_index +} + +// Returns a RACH occasion if any matches the SSB idx, the frame and the slot +static int get_nr_prach_info_from_ssb_index(uint8_t ssb_idx, + int frame, + int slot, + prach_occasion_info_t **prach_occasion_info_pp) { + + ssb_info_t *ssb_info_p; + prach_occasion_slot_t *prach_occasion_slot_p = NULL; + + *prach_occasion_info_pp = NULL; + + // Search for a matching RO slot in the SSB_to_RO map + // A valid RO slot will match: + // - ssb_idx mapped to one of the ROs in that RO slot + // - exact slot number + // - frame offset + ssb_info_p = &ssb_list.tx_ssb[ssb_idx]; + for (uint8_t n_mapped_ro=0; n_mapped_ronb_mapped_ro; n_mapped_ro++) { + if ((slot == ssb_info_p->mapped_ro[n_mapped_ro]->slot) && + (ssb_info_p->mapped_ro[n_mapped_ro]->frame == (frame % prach_assoc_pattern.nb_of_frame))) { + + uint8_t prach_config_period_nb = ssb_info_p->mapped_ro[n_mapped_ro]->frame / prach_assoc_pattern.prach_conf_period_list[0].nb_of_frame; + uint8_t frame_nb_in_prach_config_period = ssb_info_p->mapped_ro[n_mapped_ro]->frame % prach_assoc_pattern.prach_conf_period_list[0].nb_of_frame; + prach_occasion_slot_p = &prach_assoc_pattern.prach_conf_period_list[prach_config_period_nb].prach_occasion_slot_map[frame_nb_in_prach_config_period][slot]; + } + } + + // If there is a matching RO slot in the SSB_to_RO map + if (NULL != prach_occasion_slot_p) + { + // A random RO mapped to the SSB index should be selected in the slot + + // First count the number of times the SSB index is found in that RO + uint8_t 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) { + 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++; + } + } + } + } + } + } + + return 0; +} + +// Build the SSB to RO mapping upon RRC configuration update +void build_ssb_to_ro_map(NR_ServingCellConfigCommon_t *scc, uint8_t unpaired){ + + // Clear all the lists and maps + memset(&prach_assoc_pattern, 0, sizeof(prach_association_pattern_t)); + memset(&ssb_list, 0, sizeof(ssb_list_info_t)); + + // Build the list of all the valid RACH occasions in the maximum association pattern period according to the PRACH config + LOG_D(MAC,"Build RO list\n"); + build_ro_list(scc, unpaired); + + // Build the list of all the valid/transmitted SSBs according to the config + LOG_D(MAC,"Build SSB list\n"); + build_ssb_list(scc); + + // Map the transmitted SSBs to the ROs and create the association pattern according to the config + LOG_D(MAC,"Map SSB to RO\n"); + map_ssb_to_ro(scc); + LOG_D(MAC,"Map SSB to RO done\n"); +} + void fill_scheduled_response(nr_scheduled_response_t *scheduled_response, fapi_nr_dl_config_request_t *dl_config, fapi_nr_ul_config_request_t *ul_config, @@ -498,8 +1174,8 @@ int8_t nr_ue_decode_mib(module_id_t module_id, SFN_C_TYPE sfn_c=SFN_C_IMPOSSIBLE; // only valid for mux=1 uint32_t n_c=UINT_MAX; uint32_t number_of_search_space_per_slot=UINT_MAX; - uint32_t first_symbol_index=UINT_MAX; - uint32_t search_space_duration; // element of search space +// uint32_t first_symbol_index=UINT_MAX; +// uint32_t search_space_duration; // element of search space // 38.213 table 10.1-1 /// MUX PATTERN 1 @@ -516,13 +1192,13 @@ int8_t nr_ue_decode_mib(module_id_t module_id, sfn_c = SFN_C_MOD_2_EQ_0; } - if((index_4lsb == 1 || index_4lsb == 3 || index_4lsb == 5 || index_4lsb == 7) && (ssb_index&1)){ - first_symbol_index = num_symbols; - }else{ - first_symbol_index = table_38213_13_11_c4[index_4lsb]; - } +// if((index_4lsb == 1 || index_4lsb == 3 || index_4lsb == 5 || index_4lsb == 7) && (ssb_index&1)){ +// first_symbol_index = num_symbols; +// }else{ +// first_symbol_index = table_38213_13_11_c4[index_4lsb]; +// } // 38.213 chapter 13: over two consecutive slots - search_space_duration = 2; +// search_space_duration = 2; } if(mac->type0_pdcch_ss_mux_pattern == 1 && frequency_range == FR2){ @@ -530,15 +1206,15 @@ int8_t nr_ue_decode_mib(module_id_t module_id, number_of_search_space_per_slot = table_38213_13_11_c2[index_4lsb]; big_m = table_38213_13_12_c3[index_4lsb]; - if((index_4lsb == 1 || index_4lsb == 3 || index_4lsb == 5 || index_4lsb == 10) && (ssb_index&1)){ - first_symbol_index = 7; - }else if((index_4lsb == 6 || index_4lsb == 7 || index_4lsb == 8 || index_4lsb == 11) && (ssb_index&1)){ - first_symbol_index = num_symbols; - }else{ - first_symbol_index = 0; - } +// if((index_4lsb == 1 || index_4lsb == 3 || index_4lsb == 5 || index_4lsb == 10) && (ssb_index&1)){ +// first_symbol_index = 7; +// }else if((index_4lsb == 6 || index_4lsb == 7 || index_4lsb == 8 || index_4lsb == 11) && (ssb_index&1)){ +// first_symbol_index = num_symbols; +// }else{ +// first_symbol_index = 0; +// } // 38.213 chapter 13: over two consecutive slots - search_space_duration = 2; +// search_space_duration = 2; } /// MUX PATTERN 2 @@ -550,21 +1226,21 @@ int8_t nr_ue_decode_mib(module_id_t module_id, // PDCCH monitoring occasions (SFN and slot number) same as SSB frame-slot // sfn_c = SFN_C_EQ_SFN_SSB; n_c = get_ssb_slot(ssb_index); - switch(ssb_index & 0x3){ // ssb_index(i) mod 4 - case 0: - first_symbol_index = 0; - break; - case 1: - first_symbol_index = 1; - break; - case 2: - first_symbol_index = 6; - break; - case 3: - first_symbol_index = 7; - break; - default: break; - } +// switch(ssb_index & 0x3){ // ssb_index(i) mod 4 +// case 0: +// first_symbol_index = 0; +// break; +// case 1: +// first_symbol_index = 1; +// break; +// case 2: +// first_symbol_index = 6; +// break; +// case 3: +// first_symbol_index = 7; +// break; +// default: break; +// } }else if((scs_ssb == scs_240kHz) && (scs_pdcch == scs_120kHz)){ // 38.213 Table 13-14 @@ -574,36 +1250,36 @@ int8_t nr_ue_decode_mib(module_id_t module_id, n_c = get_ssb_slot(ssb_index); switch(ssb_index & 0x7){ // ssb_index(i) mod 8 case 0: - first_symbol_index = 0; +// first_symbol_index = 0; break; case 1: - first_symbol_index = 1; +// first_symbol_index = 1; break; case 2: - first_symbol_index = 2; +// first_symbol_index = 2; break; case 3: - first_symbol_index = 3; +// first_symbol_index = 3; break; case 4: - first_symbol_index = 12; +// first_symbol_index = 12; n_c = get_ssb_slot(ssb_index) - 1; break; case 5: - first_symbol_index = 13; +// first_symbol_index = 13; n_c = get_ssb_slot(ssb_index) - 1; break; case 6: - first_symbol_index = 0; +// first_symbol_index = 0; break; case 7: - first_symbol_index = 1; +// first_symbol_index = 1; break; default: break; } }else{ ; } // 38.213 chapter 13: over one slot - search_space_duration = 1; +// search_space_duration = 1; } /// MUX PATTERN 3 @@ -614,24 +1290,24 @@ int8_t nr_ue_decode_mib(module_id_t module_id, // PDCCH monitoring occasions (SFN and slot number) same as SSB frame-slot // sfn_c = SFN_C_EQ_SFN_SSB; n_c = get_ssb_slot(ssb_index); - switch(ssb_index & 0x3){ // ssb_index(i) mod 4 - case 0: - first_symbol_index = 4; - break; - case 1: - first_symbol_index = 8; - break; - case 2: - first_symbol_index = 2; - break; - case 3: - first_symbol_index = 6; - break; - default: break; - } +// switch(ssb_index & 0x3){ // ssb_index(i) mod 4 +// case 0: +// first_symbol_index = 4; +// break; +// case 1: +// first_symbol_index = 8; +// break; +// case 2: +// first_symbol_index = 2; +// break; +// case 3: +// first_symbol_index = 6; +// break; +// default: break; +// } }else{ ; } // 38.213 chapter 13: over one slot - search_space_duration = 1; +// search_space_duration = 1; } AssertFatal(number_of_search_space_per_slot!=UINT_MAX,""); @@ -2214,7 +2890,7 @@ int8_t nr_ue_process_dci_time_dom_resource_assignment(NR_UE_MAC_INST_t *mac, uint8_t time_domain_ind ){ int dmrs_typeA_pos = mac->scc->dmrs_TypeA_Position; - uint8_t k_offset=0; +// uint8_t k_offset=0; uint8_t sliv_S=0; uint8_t sliv_L=0; uint8_t table_5_1_2_1_1_2_time_dom_res_alloc_A[16][3]={ // for PDSCH from TS 38.214 subclause 5.1.2.1.1 @@ -2355,7 +3031,7 @@ int8_t nr_ue_process_dci_time_dom_resource_assignment(NR_UE_MAC_INST_t *mac, dlsch_config_pdu->number_symbols=L; } else {// Default configuration from tables - k_offset = table_5_1_2_1_1_2_time_dom_res_alloc_A[time_domain_ind-1][0]; +// k_offset = table_5_1_2_1_1_2_time_dom_res_alloc_A[time_domain_ind-1][0]; sliv_S = table_5_1_2_1_1_2_time_dom_res_alloc_A[time_domain_ind-1][1]; sliv_L = table_5_1_2_1_1_2_time_dom_res_alloc_A[time_domain_ind-1][2]; // k_offset = table_5_1_2_1_1_3_time_dom_res_alloc_A_extCP[nr_pdci_info_extracted->time_dom_resource_assignment][0]; @@ -2398,7 +3074,7 @@ int8_t nr_ue_process_dci_time_dom_resource_assignment(NR_UE_MAC_INST_t *mac, pusch_config_pdu->nr_of_symbols=L; } else { - k_offset = table_6_1_2_1_1_2_time_dom_res_alloc_A[time_domain_ind-1][0]; +// k_offset = table_6_1_2_1_1_2_time_dom_res_alloc_A[time_domain_ind-1][0]; sliv_S = table_6_1_2_1_1_2_time_dom_res_alloc_A[time_domain_ind-1][1]; sliv_L = table_6_1_2_1_1_2_time_dom_res_alloc_A[time_domain_ind-1][2]; // k_offset = table_6_1_2_1_1_3_time_dom_res_alloc_A_extCP[nr_pdci_info_extracted->time_dom_resource_assignment][0]; diff --git a/openair2/LAYER2/NR_MAC_UE/rar_tools_nrUE.c b/openair2/LAYER2/NR_MAC_UE/rar_tools_nrUE.c index 06db41df9c..c81a1f7911 100644 --- a/openair2/LAYER2/NR_MAC_UE/rar_tools_nrUE.c +++ b/openair2/LAYER2/NR_MAC_UE/rar_tools_nrUE.c @@ -274,15 +274,22 @@ uint16_t nr_ue_process_rar(module_id_t mod_id, if (ue_mac->RA_RAPID_found) { uint8_t freq_hopping, mcs, Msg3_t_alloc, Msg3_f_alloc; - unsigned char tpc_command, csi_req; + unsigned char tpc_command; +#ifdef DEBUG_RAR + unsigned char csi_req; +#endif // TC-RNTI *t_crnti = rar->TCRNTI_2 + (rar->TCRNTI_1 << 8); ue_mac->t_crnti = *t_crnti; // TA command ta_command = rar->TA2 + (rar->TA1 << 5); + +#ifdef DEBUG_RAR // CSI csi_req = (unsigned char) (rar->UL_GRANT_4 & 0x01); +#endif + // TPC tpc_command = (unsigned char) ((rar->UL_GRANT_4 >> 1) & 0x07); switch (tpc_command){