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Commit 8ea4897f authored by Mario Hudon's avatar Mario Hudon
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Renaming of variables after code review

parent 8735920b
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openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c
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......@@ -39,52 +39,52 @@
#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_FRAMES_IN_PRACH_CONF_PERIOD (16) // Max PRACH configuration period is 160ms and frame is 10ms
#define MAX_NB_SLOTS_IN_FRAME (160) // Max number of slots in a frame (@ SCS 240kHz = 160)
#define MAX_NB_FRAMES_IN_ASSOCIATION_PATTERN_PERIOD (16) // Maximum number of frames in the maximum association pattern period
#define MAX_NB_SSBS (64) // Maximum number of possible SSB indexes
#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_ROS_PER_SSB_IN_ASSOCIATION_PATTERN (MAX_TDM*MAX_FDM*MAX_NB_SLOTS_IN_FRAME*MAX_NB_FRAMES_IN_ASSOCIATION_PATTERN_PERIOD)
#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_slots_map[MAX_NB_FRAMES_IN_PRACH_CONF_PERIOD][MAX_NB_SLOTS_IN_FRAME];
uint16_t nb_of_prach_occasions; // Total number of PRACH occasions in the PRACH Config period
uint8_t nb_of_frames; // Size of the PRACH Config period in number of 10ms frames
uint8_t nb_of_slots; // Nb of slots in each frame
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_periods_list[MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PERIOD];
uint8_t nb_of_prach_conf_periods; // Nb of PRACH configuration periods within the association period
uint8_t nb_of_frames; // Total number of frames included in the 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_periods_list[MAX_NB_ASSOCIATION_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD];
prach_conf_period_t prach_conf_periods_list[MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD];
uint8_t nb_of_assoc_periods; // Nb of association periods within the association pattern
uint8_t nb_of_prach_conf_periods_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_frames; // Total number of frames included in the association pattern period (after mapping the SSBs and determining the real association pattern length)
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_ros[MAX_NB_ROS_PER_SSB_IN_ASSOCIATION_PATTERN]; // List of mapped RACH Occasions to this SSB index
uint16_t nb_mapped_ros; // Total number of mapped ROs to this SSB index
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_SSBS];
uint8_t nb_tx_ssbs;
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;
......@@ -1028,7 +1028,7 @@ static void build_ro_list(NR_ServingCellConfigCommon_t *scc) {
uint8_t slot; // Maximum is the number of slots in a frame @ SCS 240kHz
uint16_t format = 0xffff;
uint8_t format2 = 0xff;
int fdm;
int nb_fdm;
uint8_t config_index, mu;
uint32_t pointa;
......@@ -1053,7 +1053,7 @@ static void build_ro_list(NR_ServingCellConfigCommon_t *scc) {
case 1:
case 2:
case 3:
fdm = 1 << msg1_FDM;
nb_fdm = 1 << msg1_FDM;
break;
default:
AssertFatal(1 == 0, "Unknown msg1_FDM from rach_ConfigGeneric %d\n", msg1_FDM);
......@@ -1078,7 +1078,7 @@ static void build_ro_list(NR_ServingCellConfigCommon_t *scc) {
y = table_6_3_3_2_4_prachConfig_Index[config_index][3];
y2 = table_6_3_3_2_4_prachConfig_Index[config_index][4];
prach_assoc_pattern.nb_of_prach_conf_periods_in_max_period = MAX_NB_PRACH_CONF_PERIOD_IN_ASSOCIATION_PATTERN_PERIOD / x;
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;
// Fill in the PRACH occasions table for every slot in every frame in every PRACH configuration periods in the maximum association pattern period
......@@ -1087,10 +1087,10 @@ static void build_ro_list(NR_ServingCellConfigCommon_t *scc) {
// For every PRACH configuration periods
// -------------------------------------
for (prach_conf_period_idx=0; prach_conf_period_idx<prach_assoc_pattern.nb_of_prach_conf_periods_in_max_period; prach_conf_period_idx++) {
prach_assoc_pattern.prach_conf_periods_list[prach_conf_period_idx].nb_of_prach_occasions = 0;
prach_assoc_pattern.prach_conf_periods_list[prach_conf_period_idx].nb_of_frames = nb_of_frames_per_prach_conf_period;
prach_assoc_pattern.prach_conf_periods_list[prach_conf_period_idx].nb_of_slots = nr_slots_per_frame[mu];
for (prach_conf_period_idx=0; prach_conf_period_idx<prach_assoc_pattern.nb_of_prach_conf_period_in_max_period; prach_conf_period_idx++) {
prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].nb_of_prach_occasion = 0;
prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].nb_of_frame = nb_of_frames_per_prach_conf_period;
prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].nb_of_slot = nr_slots_per_frame[mu];
// For every frames in a PRACH configuration period
// ------------------------------------------------
......@@ -1128,18 +1128,18 @@ static void build_ro_list(NR_ServingCellConfigCommon_t *scc) {
for (n_prach_occ_in_time=0; n_prach_occ_in_time<N_t_slot; n_prach_occ_in_time++) {
uint8_t start_symbol = prach_conf_start_symbol + n_prach_occ_in_time * N_dur;
prach_assoc_pattern.prach_conf_periods_list[prach_conf_period_idx].prach_occasion_slots_map[prach_conf_period_frame_idx][slot].nb_of_prach_occasions_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_time++;
for (n_prach_occ_in_freq=0; n_prach_occ_in_freq<fdm; n_prach_occ_in_freq++) {
prach_occasion_info_t *prach_occasion_p = &prach_assoc_pattern.prach_conf_periods_list[prach_conf_period_idx].prach_occasion_slots_map[prach_conf_period_frame_idx][slot].prach_occasion[n_prach_occ_in_time][n_prach_occ_in_freq];
for (n_prach_occ_in_freq=0; n_prach_occ_in_freq<nb_fdm; n_prach_occ_in_freq++) {
prach_occasion_info_t *prach_occasion_p = &prach_assoc_pattern.prach_conf_period_list[prach_conf_period_idx].prach_occasion_slot_map[prach_conf_period_frame_idx][slot].prach_occasion[n_prach_occ_in_time][n_prach_occ_in_freq];
prach_occasion_p->start_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_periods_list[prach_conf_period_idx].nb_of_prach_occasions++;
prach_assoc_pattern.prach_conf_periods_list[prach_conf_period_idx].prach_occasion_slots_map[prach_conf_period_frame_idx][slot].nb_of_prach_occasions_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_freq++;
} // For every freq in the slot
} // For every time occasions in the slot
} // Valid slot?
......@@ -1174,7 +1174,7 @@ static void build_ssb_list(NR_ServingCellConfigCommon_t *scc) {
for (uint8_t bit_nb=last_bit; bit_nb<=sizeof(uint8_t)-1; bit_nb++) {
// If SSB is transmitted
if (*byte_p>>bit_nb & 0x01) {
ssb_list.nb_tx_ssbs++;
ssb_list.nb_tx_ssb++;
ssb_list.tx_ssb[ssb_idx].transmitted = true;
}
ssb_idx++;
......@@ -1192,44 +1192,44 @@ static void map_ssb_to_ro(NR_ServingCellConfigCommon_t *scc) {
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_ssbs_per_ro; // true if more than one or exactly one SSB per RACH occasion, false if more than one RO per SSB
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_occasions; // Nb of RACH occasions required to map all the SSBs
uint8_t required_nb_of_prach_conf_periods; // Nb of PRACH configuration periods required to map all the SSBs
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_ssbs_per_ro = false;
multiple_ssb_per_ro = false;
ssb_rach_ratio = 8;
break;
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_oneFourth:
multiple_ssbs_per_ro = false;
multiple_ssb_per_ro = false;
ssb_rach_ratio = 4;
break;
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_oneHalf:
multiple_ssbs_per_ro = false;
multiple_ssb_per_ro = false;
ssb_rach_ratio = 2;
break;
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_one:
multiple_ssbs_per_ro = true;
multiple_ssb_per_ro = true;
ssb_rach_ratio = 1;
break;
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_two:
multiple_ssbs_per_ro = true;
multiple_ssb_per_ro = true;
ssb_rach_ratio = 2;
break;
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_four:
multiple_ssbs_per_ro = true;
multiple_ssb_per_ro = true;
ssb_rach_ratio = 4;
break;
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_eight:
multiple_ssbs_per_ro = true;
multiple_ssb_per_ro = true;
ssb_rach_ratio = 8;
break;
case NR_RACH_ConfigCommon__ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR_sixteen:
multiple_ssbs_per_ro = true;
multiple_ssb_per_ro = true;
ssb_rach_ratio = 16;
break;
default:
......@@ -1242,46 +1242,47 @@ 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
if (true == multiple_ssbs_per_ro) {
required_nb_of_prach_occasions = ((ssb_list.nb_tx_ssbs-1) + ssb_rach_ratio) / ssb_rach_ratio;
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_occasions = ssb_list.nb_tx_ssbs * ssb_rach_ratio;
required_nb_of_prach_occasion = ssb_list.nb_tx_ssb * ssb_rach_ratio;
}
required_nb_of_prach_conf_periods = ((required_nb_of_prach_occasions-1) + prach_assoc_pattern.prach_conf_periods_list[0].nb_of_prach_occasions) / prach_assoc_pattern.prach_conf_periods_list[0].nb_of_prach_occasions;
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_periods == 1) {
prach_assoc_pattern.prach_association_periods_list[0].nb_of_prach_conf_periods = 1;
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_periods == 2) {
prach_assoc_pattern.prach_association_periods_list[0].nb_of_prach_conf_periods = 2;
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_periods <= 4) {
prach_assoc_pattern.prach_association_periods_list[0].nb_of_prach_conf_periods = 4;
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_periods <= 8) {
prach_assoc_pattern.prach_association_periods_list[0].nb_of_prach_conf_periods = 8;
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(16 >= required_nb_of_prach_conf_periods, "Invalid number of PRACH config periods within an association period %d\n", required_nb_of_prach_conf_periods);
prach_assoc_pattern.prach_association_periods_list[0].nb_of_prach_conf_periods = 16;
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_periods = 1; // WIP-IDCC: only one possible association period
prach_assoc_pattern.prach_association_periods_list[0].nb_of_frames = prach_assoc_pattern.prach_association_periods_list[0].nb_of_prach_conf_periods * prach_assoc_pattern.prach_conf_periods_list[0].nb_of_frames;
prach_assoc_pattern.nb_of_frames = prach_assoc_pattern.prach_association_periods_list[0].nb_of_frames;
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;
// Proceed to the SSB to RO mapping
// ================================
uint8_t association_period_idx; // Association period index within the association pattern
uint8_t ssb_idx = MAX_NB_SSBS;
uint8_t ssb_idx = MAX_NB_SSB;
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
for (association_period_idx=0; association_period_idx<prach_assoc_pattern.nb_of_assoc_periods; association_period_idx++) {
for (association_period_idx=0; association_period_idx<prach_assoc_pattern.nb_of_assoc_period; association_period_idx++) {
uint8_t n_prach_conf=0; // PRACH Configuration period index within the association period
uint8_t frame=0;
uint8_t slot=0;
......@@ -1292,7 +1293,7 @@ static void map_ssb_to_ro(NR_ServingCellConfigCommon_t *scc) {
prach_configuration_period_idx = 0; // WIP-IDCC: only one possible association period
// Check if we need to map multiple SSBs per RO or multiple ROs per SSB
if (true == multiple_ssbs_per_ro) {
if (true == multiple_ssb_per_ro) {
// --------------------
// --------------------
// Multiple SSBs per RO
......@@ -1300,32 +1301,32 @@ static void map_ssb_to_ro(NR_ServingCellConfigCommon_t *scc) {
// --------------------
// Go through the list of PRACH config periods within this association period
for (n_prach_conf=0; n_prach_conf<prach_assoc_pattern.prach_association_periods_list[association_period_idx].nb_of_prach_conf_periods; n_prach_conf++, prach_configuration_period_idx++) {
for (n_prach_conf=0; n_prach_conf<prach_assoc_pattern.prach_association_period_list[association_period_idx].nb_of_prach_conf_period; n_prach_conf++, prach_configuration_period_idx++) {
// Build the association period with its association PRACH Configuration indexes
prach_conf_period_p = &prach_assoc_pattern.prach_conf_periods_list[prach_configuration_period_idx];
prach_assoc_pattern.prach_association_periods_list[association_period_idx].prach_conf_periods_list[n_prach_conf] = prach_conf_period_p;
prach_conf_period_p = &prach_assoc_pattern.prach_conf_period_list[prach_configuration_period_idx];
prach_assoc_pattern.prach_association_period_list[association_period_idx].prach_conf_period_list[n_prach_conf] = prach_conf_period_p;
// Go through all the ROs within the PRACH config period
for (frame=0; frame<prach_conf_period_p->nb_of_frames; frame++) {
for (slot=0; slot<prach_conf_period_p->nb_of_slots; slot++) {
for (ro_in_time=0; ro_in_time<prach_conf_period_p->prach_occasion_slots_map[frame][slot].nb_of_prach_occasions_in_time; ro_in_time++) {
for (ro_in_freq=0; ro_in_freq<prach_conf_period_p->prach_occasion_slots_map[frame][slot].nb_of_prach_occasions_in_freq; ro_in_freq++) {
prach_occasion_info_t *ro_p = &prach_conf_period_p->prach_occasion_slots_map[frame][slot].prach_occasion[ro_in_time][ro_in_freq];
for (frame=0; frame<prach_conf_period_p->nb_of_frame; frame++) {
for (slot=0; slot<prach_conf_period_p->nb_of_slot; slot++) {
for (ro_in_time=0; ro_in_time<prach_conf_period_p->prach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_time; ro_in_time++) {
for (ro_in_freq=0; ro_in_freq<prach_conf_period_p->prach_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
for (ssb_idx=0; ssb_idx<MAX_NB_SSBS; ssb_idx++) {
for (ssb_idx=0; ssb_idx<MAX_NB_SSB; ssb_idx++) {
// Map only the transmitted ssb_idx
if (true == ssb_list.tx_ssb[ssb_idx].transmitted) {
ro_p->mapped_ssb_idx[ro_p->nb_mapped_ssbs] = ssb_idx;
ro_p->nb_mapped_ssbs++;
ssb_list.tx_ssb[ssb_idx].mapped_ros[ssb_list.tx_ssb[ssb_idx].nb_mapped_ros] = ro_p;
ssb_list.tx_ssb[ssb_idx].nb_mapped_ros++;
AssertFatal(MAX_NB_ROS_PER_SSB_IN_ASSOCIATION_PATTERN > ssb_list.tx_ssb[ssb_idx].nb_mapped_ros,"Too many mapped ROs (%d) to a single SSB\n", ssb_list.tx_ssb[ssb_idx].nb_mapped_ros);
ro_p->mapped_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);
// If all the required SSBs are mapped to this RO, exit the loop of SSBs
if (ro_p->nb_mapped_ssbs == ssb_rach_ratio) {
if (ro_p->nb_mapped_ssb == ssb_rach_ratio) {
ssb_idx++;
break;
}
......@@ -1333,23 +1334,23 @@ static void map_ssb_to_ro(NR_ServingCellConfigCommon_t *scc) {
} // for ssb_idx
// Exit the loop of ROs if there is no more SSB to map
if (MAX_NB_SSBS == ssb_idx) break;
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_SSBS == ssb_idx) break;
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_SSBS == ssb_idx) break;
if (MAX_NB_SSB == ssb_idx) break;
} // for slot
// Exit the loop frames if there is no more SSB to map
if (MAX_NB_SSBS == ssb_idx) break;
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_SSBS == ssb_idx) break;
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
......@@ -1366,57 +1367,57 @@ static void map_ssb_to_ro(NR_ServingCellConfigCommon_t *scc) {
n_prach_conf = 0;
// Go through the list of transmitted SSBs
for (ssb_idx=0; ssb_idx<MAX_NB_SSBS; ssb_idx++) {
uint8_t nb_mapped_ros_in_association_period=0; // Reset the nb of mapped ROs for the new SSB index
for (ssb_idx=0; ssb_idx<MAX_NB_SSB; ssb_idx++) {
uint8_t nb_mapped_ro_in_association_period=0; // Reset the nb of mapped ROs for the new SSB index
// Map only the transmitted ssb_idx
if (true == ssb_list.tx_ssb[ssb_idx].transmitted) {
// Map all the required ROs to this SSB
// Go through the list of PRACH config periods within this association period
for (; n_prach_conf<prach_assoc_pattern.prach_association_periods_list[association_period_idx].nb_of_prach_conf_periods; n_prach_conf++, prach_configuration_period_idx++) {
for (; n_prach_conf<prach_assoc_pattern.prach_association_period_list[association_period_idx].nb_of_prach_conf_period; n_prach_conf++, prach_configuration_period_idx++) {
// Build the association period with its association PRACH Configuration indexes
prach_conf_period_p = &prach_assoc_pattern.prach_conf_periods_list[prach_configuration_period_idx];
prach_assoc_pattern.prach_association_periods_list[association_period_idx].prach_conf_periods_list[n_prach_conf] = prach_conf_period_p;
prach_conf_period_p = &prach_assoc_pattern.prach_conf_period_list[prach_configuration_period_idx];
prach_assoc_pattern.prach_association_period_list[association_period_idx].prach_conf_period_list[n_prach_conf] = prach_conf_period_p;
for (; frame<prach_conf_period_p->nb_of_frames; frame++) {
for (; slot<prach_conf_period_p->nb_of_slots; slot++) {
for (; ro_in_time<prach_conf_period_p->prach_occasion_slots_map[frame][slot].nb_of_prach_occasions_in_time; ro_in_time++) {
for (; ro_in_freq<prach_conf_period_p->prach_occasion_slots_map[frame][slot].nb_of_prach_occasions_in_freq; ro_in_freq++) {
prach_occasion_info_t *ro_p = &prach_conf_period_p->prach_occasion_slots_map[frame][slot].prach_occasion[ro_in_time][ro_in_freq];
for (; frame<prach_conf_period_p->nb_of_frame; frame++) {
for (; slot<prach_conf_period_p->nb_of_slot; slot++) {
for (; ro_in_time<prach_conf_period_p->prach_occasion_slot_map[frame][slot].nb_of_prach_occasion_in_time; ro_in_time++) {
for (; ro_in_freq<prach_conf_period_p->prach_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_ssbs = 1;
ssb_list.tx_ssb[ssb_idx].mapped_ros[ssb_list.tx_ssb[ssb_idx].nb_mapped_ros] = ro_p;
ssb_list.tx_ssb[ssb_idx].nb_mapped_ros++;
AssertFatal(MAX_NB_ROS_PER_SSB_IN_ASSOCIATION_PATTERN > ssb_list.tx_ssb[ssb_idx].nb_mapped_ros,"Too many mapped ROs (%d) to a single SSB\n", ssb_list.tx_ssb[ssb_idx].nb_mapped_ros);
nb_mapped_ros_in_association_period++;
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++;
// Exit the loop if this SSB has been mapped to all the required ROs
if (nb_mapped_ros_in_association_period == ssb_rach_ratio) {
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_ros_in_association_period == ssb_rach_ratio) break;
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
} // for ro_in_time
// Exit the loop if this SSB has been mapped to all the required ROs
if (nb_mapped_ros_in_association_period == ssb_rach_ratio) break;
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
} // for slot
// Exit the loop if this SSB has been mapped to all the required ROs
if (nb_mapped_ros_in_association_period == ssb_rach_ratio) break;
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
} // for frame
// Exit the loop if this SSB has been mapped to all the required ROs
if (nb_mapped_ros_in_association_period == ssb_rach_ratio) break;
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
} // for n_prach_conf
......@@ -1461,13 +1462,13 @@ int get_nr_prach_info_from_ssb_index(uint8_t ssb_idx,
// - exact slot number
// - frame offset
ssb_info_p = &ssb_list.tx_ssb[ssb_idx];
for (uint8_t n_mapped_ro=0; n_mapped_ro<ssb_info_p->nb_mapped_ros; n_mapped_ro++) {
if ((slot == ssb_info_p->mapped_ros[n_mapped_ro]->slot) &&
(ssb_info_p->mapped_ros[n_mapped_ro]->frame == (frame % prach_assoc_pattern.nb_of_frames))) {
for (uint8_t n_mapped_ro=0; n_mapped_ro<ssb_info_p->nb_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_ros[n_mapped_ro]->frame / prach_assoc_pattern.prach_conf_periods_list[0].nb_of_frames;
uint8_t frame_nb_in_prach_config_period = ssb_info_p->mapped_ros[n_mapped_ro]->frame % prach_assoc_pattern.prach_conf_periods_list[0].nb_of_frames;
prach_occasion_slot_p = &prach_assoc_pattern.prach_conf_periods_list[prach_config_period_nb].prach_occasion_slots_map[frame_nb_in_prach_config_period][slot];
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];
}
}
......@@ -1476,10 +1477,10 @@ int get_nr_prach_info_from_ssb_index(uint8_t ssb_idx,
{
// Go through all the ROs in the slot and find the first that is mapped to the selected SSB index
// WIP-IDCC: A random RO mapped to the SSB index should be selected in the slot instead
for (int ro_in_time=0; ro_in_time < prach_occasion_slot_p->nb_of_prach_occasions_in_time; ro_in_time++) {
for (int ro_in_freq=0; ro_in_freq < prach_occasion_slot_p->nb_of_prach_occasions_in_freq; ro_in_freq++) {
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_nb<prach_occasion_info_p->nb_mapped_ssbs; ssb_nb++) {
for (uint8_t ssb_nb=0; ssb_nb<prach_occasion_info_p->nb_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;
......
openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.h
View file @ 8ea4897f
......@@ -51,7 +51,7 @@ typedef struct prach_occasion_info {
uint8_t slot; // 0 - 159 (maximum number of slots in a 10ms frame - @ 240kHz)
uint8_t frame; // 0 - 15 (maximum number of frames in a 160ms association pattern)
uint8_t mapped_ssb_idx[MAX_SSB_PER_RO]; // List of mapped SSBs
uint8_t nb_mapped_ssbs;
uint8_t nb_mapped_ssb;
uint16_t format; // RO preamble format
} prach_occasion_info_t;
......@@ -59,8 +59,8 @@ typedef struct prach_occasion_info {
// A PRACH occasion slot is a series of PRACH occasions in time (symbols) and frequency
typedef struct prach_occasion_slot {
prach_occasion_info_t prach_occasion[MAX_TDM][MAX_FDM]; // Starting symbol of each PRACH occasions in a slot
uint8_t nb_of_prach_occasions_in_time;
uint8_t nb_of_prach_occasions_in_freq;
uint8_t nb_of_prach_occasion_in_time;
uint8_t nb_of_prach_occasion_in_freq;
} prach_occasion_slot_t;
// ========================================
......
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