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update_dlsch_buffer() for individual UEs

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This commit is contained in:
Robert Schmidt
2025-10-30 23:13:53 +01:00
parent 27a022d6f8
commit 24399eac2d
1 changed files with 33 additions and 37 deletions
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openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
+33 -37
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@@ -321,46 +321,41 @@ int nr_write_ce_dlsch_pdu(module_id_t module_idP,
return offset;
}
static void nr_store_dlsch_buffer(module_id_t module_id, frame_t frame, slot_t slot)
static uint32_t update_dlsch_buffer(frame_t frame, slot_t slot, NR_UE_info_t *UE)
{
UE_iterator(RC.nrmac[module_id]->UE_info.connected_ue_list, UE) {
NR_UE_sched_ctrl_t *sched_ctrl = &UE->UE_sched_ctrl;
sched_ctrl->num_total_bytes = 0;
sched_ctrl->dl_pdus_total = 0;
NR_UE_sched_ctrl_t *sched_ctrl = &UE->UE_sched_ctrl;
sched_ctrl->num_total_bytes = 0;
sched_ctrl->dl_pdus_total = 0;
/* loop over all activated logical channels */
// Note: DL_SCH_LCID_DCCH, DL_SCH_LCID_DCCH1, DL_SCH_LCID_DTCH
for (int i = 0; i < seq_arr_size(&sched_ctrl->lc_config); ++i) {
const nr_lc_config_t *c = seq_arr_at(&sched_ctrl->lc_config, i);
const int lcid = c->lcid;
const uint16_t rnti = UE->rnti;
LOG_D(NR_MAC, "In %s: UE %x: LCID %d\n", __FUNCTION__, rnti, lcid);
memset(&sched_ctrl->rlc_status[lcid], 0, sizeof(sched_ctrl->rlc_status[lcid]));
if (c->suspended)
continue;
if (lcid == DL_SCH_LCID_DTCH && nr_timer_is_active(&sched_ctrl->transm_interrupt))
continue;
sched_ctrl->rlc_status[lcid] = nr_mac_rlc_status_ind(rnti, frame, lcid);
/* loop over all activated logical channels */
for (int i = 0; i < seq_arr_size(&sched_ctrl->lc_config); ++i) {
const nr_lc_config_t *c = seq_arr_at(&sched_ctrl->lc_config, i);
const int lcid = c->lcid;
const uint16_t rnti = UE->rnti;
LOG_D(NR_MAC, "UE %x: LCID %d\n", rnti, lcid);
memset(&sched_ctrl->rlc_status[lcid], 0, sizeof(sched_ctrl->rlc_status[lcid]));
if (c->suspended)
continue;
if (lcid == DL_SCH_LCID_DTCH && nr_timer_is_active(&sched_ctrl->transm_interrupt))
continue;
sched_ctrl->rlc_status[lcid] = nr_mac_rlc_status_ind(rnti, frame, lcid);
if (sched_ctrl->rlc_status[lcid].bytes_in_buffer == 0)
continue;
if (sched_ctrl->rlc_status[lcid].bytes_in_buffer == 0)
continue;
sched_ctrl->dl_pdus_total += sched_ctrl->rlc_status[lcid].pdus_in_buffer;
sched_ctrl->num_total_bytes += sched_ctrl->rlc_status[lcid].bytes_in_buffer;
LOG_D(MAC,
"[gNB %d][%4d.%2d] %s%d->DLSCH, RLC status for UE %d: %d bytes in buffer, total DL buffer size = %d bytes, %d total PDU bytes, %s TA command\n",
module_id,
frame,
slot,
lcid < 4 ? "DCCH":"DTCH",
lcid,
UE->rnti,
sched_ctrl->rlc_status[lcid].bytes_in_buffer,
sched_ctrl->num_total_bytes,
sched_ctrl->dl_pdus_total,
sched_ctrl->ta_apply ? "send":"do not send");
}
sched_ctrl->dl_pdus_total += sched_ctrl->rlc_status[lcid].pdus_in_buffer;
sched_ctrl->num_total_bytes += sched_ctrl->rlc_status[lcid].bytes_in_buffer;
LOG_D(MAC,
"%4d.%2d UE %04x LCID %d status: %d bytes, total buffer %d bytes %d PDUs\n",
frame,
slot,
UE->rnti,
lcid,
sched_ctrl->rlc_status[lcid].bytes_in_buffer,
sched_ctrl->num_total_bytes,
sched_ctrl->dl_pdus_total);
}
return sched_ctrl->num_total_bytes;
}
void finish_nr_dl_harq(NR_UE_sched_ctrl_t *sched_ctrl, int harq_pid)
@@ -903,7 +898,6 @@ static void pf_dl(gNB_MAC_INST *mac,
static void nr_dlsch_preprocessor(gNB_MAC_INST *mac, post_process_pdsch_t *pp_pdsch)
{
module_id_t module_id = 0;
NR_UEs_t *UE_info = &mac->UE_info;
if (UE_info->connected_ue_list[0] == NULL)
@@ -917,7 +911,9 @@ static void nr_dlsch_preprocessor(gNB_MAC_INST *mac, post_process_pdsch_t *pp_pd
n_rb_sched[i] = bw;
/* Retrieve amount of data to send for this UE */
nr_store_dlsch_buffer(module_id, pp_pdsch->frame, pp_pdsch->slot);
UE_iterator(mac->UE_info.connected_ue_list, UE) {
update_dlsch_buffer(pp_pdsch->frame, pp_pdsch->slot, UE);
}
int average_agg_level = 4; // TODO find a better estimation
int max_sched_ues = bw / (average_agg_level * NR_NB_REG_PER_CCE);