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Commit 5865c141 authored by Navid Nikaein's avatar Navid Nikaein
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Improve UL/DL MCS assignment

parent 4bf4ad8e
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Showing with 21 additions and 19 deletions
openair2/LAYER2/MAC/eNB_scheduler_dlsch.c
View file @ 5865c141
......@@ -791,10 +791,10 @@ schedule_ue_spec(module_id_t module_idP,slice_id_t slice_idP,
if (nfapi_mode) {
eNB_UE_stats->dlsch_mcs1 = 10;//cqi_to_mcs[ue_sched_ctl->dl_cqi[CC_id]];
}
else {
eNB_UE_stats->dlsch_mcs1 = cqi_to_mcs[ue_sched_ctl->dl_cqi[CC_id]];
}
else { // this operation is also done in the preprocessor
eNB_UE_stats->dlsch_mcs1 = cmin(eNB_UE_stats->dlsch_mcs1, slice_maxmcs[slice_idP]); //cmin(eNB_UE_stats->dlsch_mcs1, openair_daq_vars.target_ue_dl_mcs);
}
// store stats
......
openair2/LAYER2/MAC/eNB_scheduler_ulsch.c
View file @ 5865c141
......@@ -1289,11 +1289,11 @@ schedule_ulsch_rnti(module_id_t module_idP,
ndi = 1 - UE_template->oldNDI_UL[harq_pid];
UE_template->oldNDI_UL[harq_pid] = ndi;
UE_list->eNB_UE_stats[CC_id][UE_id].
normalized_rx_power = normalized_rx_power;
UE_list->eNB_UE_stats[CC_id][UE_id].normalized_rx_power = normalized_rx_power;
UE_list->eNB_UE_stats[CC_id][UE_id].target_rx_power = target_rx_power;
UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs1 = UE_template->pre_assigned_mcs_ul;
UE_template->mcs_UL[harq_pid] = cmin(UE_template->pre_assigned_mcs_ul, slice_maxmcs_uplink[slice_id]);//cmin (UE_template->pre_assigned_mcs_ul, openair_daq_vars.target_ue_ul_mcs); // adjust, based on user-defined MCS
UE_template->mcs_UL[harq_pid] = cmin(UE_template->pre_assigned_mcs_ul, slice_maxmcs_uplink[slice_id]);
UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs1= UE_template->mcs_UL[harq_pid];
//cmin (UE_template->pre_assigned_mcs_ul, openair_daq_vars.target_ue_ul_mcs); // adjust, based on user-defined MCS
if (UE_template->pre_allocated_rb_table_index_ul >= 0) {
rb_table_index = UE_template->pre_allocated_rb_table_index_ul;
} else {
......
openair2/LAYER2/MAC/pre_processor.c
View file @ 5865c141
......@@ -60,6 +60,10 @@
extern float slice_percentage[MAX_NUM_SLICES];
extern float slice_percentage_uplink[MAX_NUM_SLICES];
extern int slice_maxmcs[MAX_NUM_SLICES];
extern int slice_maxmcs_uplink[MAX_NUM_SLICES];
//#define ICIC 0
/* this function checks that get_eNB_UE_stats returns
......@@ -211,8 +215,8 @@ assign_rbs_required(module_id_t Mod_id,
CC_id = UE_list->ordered_CCids[n][UE_id];
eNB_UE_stats = &UE_list->eNB_UE_stats[CC_id][UE_id];
eNB_UE_stats->dlsch_mcs1 =
cqi_to_mcs[UE_list->UE_sched_ctrl[UE_id].dl_cqi[CC_id]];
eNB_UE_stats->dlsch_mcs1 =cmin(cqi_to_mcs[UE_list->UE_sched_ctrl[UE_id].dl_cqi[CC_id]],
slice_maxmcs[slice_id]);
}
......@@ -1585,7 +1589,6 @@ assign_max_mcs_min_rb(module_id_t module_idP, int slice_id, int frameP,
uint16_t n, UE_id;
uint8_t CC_id;
rnti_t rnti = -1;
int mcs;
int rb_table_index = 0, tbs, tx_power;
eNB_MAC_INST *eNB = RC.mac[module_idP];
UE_list_t *UE_list = &eNB->UE_list;
......@@ -1609,9 +1612,9 @@ assign_max_mcs_min_rb(module_id_t module_idP, int slice_id, int frameP,
continue;
if (UE_list->UE_sched_ctrl[i].phr_received == 1)
mcs = 20; // if we've received the power headroom information the UE, we can go to maximum mcs
UE_template->pre_assigned_mcs_ul = cmin(20, slice_maxmcs_uplink[slice_id]); // if we've received the power headroom information the UE, we can go to maximum mcs
else
mcs = 10; // otherwise, limit to QPSK PUSCH
UE_template->pre_assigned_mcs_ul = cmin(10, slice_maxmcs_uplink[slice_id]); // otherwise, limit to QPSK PUSCH
UE_id = i;
......@@ -1642,7 +1645,7 @@ assign_max_mcs_min_rb(module_id_t module_idP, int slice_id, int frameP,
// if this UE has UL traffic
if (bits_to_schedule > 0) {
tbs = get_TBS_UL(mcs, 3) << 3; // 1 or 2 PRB with cqi enabled does not work well!
tbs = get_TBS_UL(UE_template->pre_assigned_mcs_ul, 3) << 3; // 1 or 2 PRB with cqi enabled does not work well!
rb_table_index = 2;
// fixme: set use_srs flag
......@@ -1650,10 +1653,10 @@ assign_max_mcs_min_rb(module_id_t module_idP, int slice_id, int frameP,
while ((((UE_template->phr_info - tx_power) < 0)
|| (tbs > bits_to_schedule))
&& (mcs > 3)) {
&& (UE_template->pre_assigned_mcs_ul > 3)) {
// LOG_I(MAC,"UE_template->phr_info %d tx_power %d mcs %d\n", UE_template->phr_info,tx_power, mcs);
mcs--;
tbs = get_TBS_UL(mcs, rb_table[rb_table_index]) << 3;
UE_template->pre_assigned_mcs_ul--;
tbs = get_TBS_UL(UE_template->pre_assigned_mcs_ul, rb_table[rb_table_index]) << 3;
tx_power = estimate_ue_tx_power(tbs, rb_table[rb_table_index], 0, Ncp, 0); // fixme: set use_srs
}
......@@ -1662,7 +1665,7 @@ assign_max_mcs_min_rb(module_id_t module_idP, int slice_id, int frameP,
&& ((UE_template->phr_info - tx_power) > 0)
&& (rb_table_index < 32)) {
rb_table_index++;
tbs = get_TBS_UL(mcs, rb_table[rb_table_index]) << 3;
tbs = get_TBS_UL(UE_template->pre_assigned_mcs_ul, rb_table[rb_table_index]) << 3;
tx_power = estimate_ue_tx_power(tbs, rb_table[rb_table_index], 0, Ncp, 0);
}
......@@ -1676,7 +1679,6 @@ assign_max_mcs_min_rb(module_id_t module_idP, int slice_id, int frameP,
rb_table_index = 2; //3PRB
}
UE_template->pre_assigned_mcs_ul = mcs;
UE_template->pre_allocated_rb_table_index_ul = rb_table_index;
UE_template->pre_allocated_nb_rb_ul[slice_id] = rb_table[rb_table_index];
LOG_D(MAC,
......
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