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mac: change array beam_allocation to int16_t

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int16_t is sufficient to hold beam_id and -1 if not allocated. Following
commits will bring changes to only pass LSB 15 bits as beam_id to PHY.
This commit is contained in:
Sakthivel Velumani
2025-12-15 14:35:50 +00:00
parent 35e5cb69d1
commit 15e59665e6
5 changed files with 8 additions and 8 deletions
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openair2/GNB_APP/gnb_config.c
+1 -1
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@@ -1630,7 +1630,7 @@ void RCconfig_nr_macrlc(configmodule_interface_t *cfg)
AssertFatal(NFAPI_MODE == NFAPI_MONOLITHIC, "Analog beamforming only supported for monolithic scenario\n");
NR_beam_info_t *beam_info = &RC.nrmac[j]->beam_info;
int beams_per_period = *MacRLC_ParamList.paramarray[j][MACRLC_ANALOG_BEAMS_PERIOD_IDX].u8ptr;
beam_info->beam_allocation = malloc16(beams_per_period * sizeof(int *));
beam_info->beam_allocation = malloc16(beams_per_period * sizeof(beam_info->beam_allocation));
beam_info->beam_duration = *MacRLC_ParamList.paramarray[j][MACRLC_ANALOG_BEAM_DURATION_IDX].u8ptr;
beam_info->beams_per_period = beams_per_period;
beam_info->beam_allocation_size = -1; // to be initialized once we have information on frame configuration
openair2/LAYER2/NR_MAC_gNB/config.c
+1 -1
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@@ -780,7 +780,7 @@ static void initialize_beam_information(NR_beam_info_t *beam_info, int mu, int s
slots_per_frame);
beam_info->beam_allocation_size = size / beam_info->beam_duration;
for (int i = 0; i < beam_info->beams_per_period; i++) {
beam_info->beam_allocation[i] = malloc16(beam_info->beam_allocation_size * sizeof(int));
beam_info->beam_allocation[i] = malloc16(beam_info->beam_allocation_size * sizeof(*beam_info->beam_allocation));
for (int j = 0; j < beam_info->beam_allocation_size; j++)
beam_info->beam_allocation[i][j] = -1;
}
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
+3 -3
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@@ -3666,7 +3666,7 @@ static inline int get_beam_index(const NR_beam_info_t *beam_info, int frame, int
return ((frame * slots_per_frame + slot) / beam_info->beam_duration) % beam_info->beam_allocation_size;
}
NR_beam_alloc_t beam_allocation_procedure(NR_beam_info_t *beam_info, int frame, int slot, int beam_index, int slots_per_frame)
NR_beam_alloc_t beam_allocation_procedure(NR_beam_info_t *beam_info, int frame, int slot, int16_t beam_index, int slots_per_frame)
{
// if no beam allocation for analog beamforming we always return beam index 0 (no multiple beams)
if (beam_info->beam_mode == NO_BEAM_MODE)
@@ -3675,7 +3675,7 @@ NR_beam_alloc_t beam_allocation_procedure(NR_beam_info_t *beam_info, int frame,
const int index = get_beam_index(beam_info, frame, slot, slots_per_frame);
for (int i = 0; i < beam_info->beams_per_period; i++) {
NR_beam_alloc_t beam_struct = {.new_beam = false, .idx = i};
int *beam = &beam_info->beam_allocation[i][index];
int16_t *beam = &beam_info->beam_allocation[i][index];
if (*beam == -1) {
beam_struct.new_beam = true;
*beam = beam_index;
@@ -3689,7 +3689,7 @@ NR_beam_alloc_t beam_allocation_procedure(NR_beam_info_t *beam_info, int frame,
return (NR_beam_alloc_t) {.new_beam = false, .idx = -1};
}
void reset_beam_status(NR_beam_info_t *beam_info, int frame, int slot, int beam_index, int slots_per_frame, bool new_beam)
void reset_beam_status(NR_beam_info_t *beam_info, int frame, int slot, int16_t beam_index, int slots_per_frame, bool new_beam)
{
if(!new_beam) // need to reset only if the beam was allocated specifically for this instance
return;
openair2/LAYER2/NR_MAC_gNB/mac_proto.h
+2 -2
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@@ -447,8 +447,8 @@ int ul_buffer_index(int frame, int slot, int slots_per_frame, int size);
void UL_tti_req_ahead_initialization(gNB_MAC_INST *gNB, int n, int CCid, frame_t frameP, int slotP);
void fapi_beam_index_allocation(NR_ServingCellConfigCommon_t *scc, const nr_mac_config_t *config, gNB_MAC_INST *mac);
int get_fapi_beamforming_index(gNB_MAC_INST *mac, int ssb_idx);
NR_beam_alloc_t beam_allocation_procedure(NR_beam_info_t *beam_info, int frame, int slot, int beam_index, int slots_per_frame);
void reset_beam_status(NR_beam_info_t *beam_info, int frame, int slot, int beam_index, int slots_per_frame, bool new_beam);
NR_beam_alloc_t beam_allocation_procedure(NR_beam_info_t *beam_info, int frame, int slot, int16_t beam_index, int slots_per_frame);
void reset_beam_status(NR_beam_info_t *beam_info, int frame, int slot, int16_t beam_index, int slots_per_frame, bool new_beam);
void beam_selection_procedures(gNB_MAC_INST *mac, NR_UE_info_t *UE);
void nr_sr_reporting(gNB_MAC_INST *nrmac, frame_t frameP, slot_t slotP);
bwp_info_t get_pdsch_bwp_start_size(gNB_MAC_INST *nr_mac, NR_UE_info_t *UE);
openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h
+1 -1
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@@ -826,7 +826,7 @@ typedef enum {
typedef struct {
/// list of allocated beams per period
int **beam_allocation;
int16_t **beam_allocation;
int beam_duration; // in slots
int beams_per_period;
int beam_allocation_size;