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OpenXG UE
Commit f091e67f authored by hardy's avatar hardy
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Merge remote-tracking branch 'origin/NR_MCS_BLER' into integration_2021_wk45_c

parents 5203ad32 b3b860bb
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Showing with 124 additions and 17 deletions
ci-scripts/xml_files/fr1_nsa_2x2_quectel.xml
View file @ f091e67f
......@@ -113,8 +113,8 @@
<testCase id="070000">
<class>Iperf</class>
<desc>iperf (DL/20Mbps/UDP)(60 sec)(single-ue profile)</desc>
<iperf_args>-u -b 20M -t 60</iperf_args>
<desc>iperf (DL/60Mbps/UDP)(60 sec)(single-ue profile)</desc>
<iperf_args>-u -b 60M -t 60</iperf_args>
<direction>DL</direction>
<id>nrmodule2_quectel</id>
<iperf_packetloss_threshold>5</iperf_packetloss_threshold>
......
ci-scripts/xml_files/fr1_nsa_quectel.xml
View file @ f091e67f
......@@ -110,8 +110,8 @@
<testCase id="070000">
<class>Iperf</class>
<desc>iperf (DL/20Mbps/UDP)(60 sec)(single-ue profile)</desc>
<iperf_args>-u -b 20M -t 60</iperf_args>
<desc>iperf (DL/60Mbps/UDP)(60 sec)(single-ue profile)</desc>
<iperf_args>-u -b 60M -t 60</iperf_args>
<direction>DL</direction>
<id>idefix</id>
<iperf_packetloss_threshold>3</iperf_packetloss_threshold>
......
doc/FEATURE_SET.md
View file @ f091e67f
......@@ -313,6 +313,7 @@ The following features are valid for the gNB and the 5G-NR UE.
- MAC downlink scheduler
- phy-test scheduler (fixed allocation and usable also without UE)
- regular scheduler with dynamic allocation
- MCS adaptation from HARQ BLER
- MAC header generation (including timing advance)
- ACK / NACK handling and HARQ procedures for downlink
- MAC uplink scheduler
......
openair2/GNB_APP/MACRLC_nr_paramdef.h
View file @ f091e67f
......@@ -60,6 +60,11 @@
#define CONFIG_STRING_MACRLC_PUCCHTARGETSNRX10 "pucch_TargetSNRx10"
#define CONFIG_STRING_MACRLC_PUCCHFAILURETHRES "pucch_FailureThres"
#define CONFIG_STRING_MACRLC_PUSCHFAILURETHRES "pusch_FailureThres"
#define CONFIG_STRING_MACRLC_DL_BLER_TARGET_UPPER "dl_bler_target_upper"
#define CONFIG_STRING_MACRLC_DL_BLER_TARGET_LOWER "dl_bler_target_lower"
#define CONFIG_STRING_MACRLC_DL_RD2_BLER_THRESHOLD "dl_rd2_bler_threshold"
#define CONFIG_STRING_MACRLC_DL_MAX_MCS "dl_max_mcs"
/*-------------------------------------------------------------------------------------------------------------------------------------------------------*/
/* MacRLC configuration parameters */
......@@ -88,6 +93,10 @@
{CONFIG_STRING_MACRLC_PUCCHTARGETSNRX10, NULL, 0, iptr:NULL, defintval:150, TYPE_INT, 0}, \
{CONFIG_STRING_MACRLC_PUCCHFAILURETHRES, NULL, 0, iptr:NULL, defintval:10, TYPE_INT, 0}, \
{CONFIG_STRING_MACRLC_PUSCHFAILURETHRES, NULL, 0, iptr:NULL, defintval:10, TYPE_INT, 0}, \
{CONFIG_STRING_MACRLC_DL_BLER_TARGET_UPPER, "Upper threshold of BLER to decrease DL MCS", 0, dblptr:NULL, defdblval:0.15, TYPE_DOUBLE, 0}, \
{CONFIG_STRING_MACRLC_DL_BLER_TARGET_LOWER, "Lower threshold of BLER to increase DL MCS", 0, dblptr:NULL, defdblval:0.05, TYPE_DOUBLE, 0}, \
{CONFIG_STRING_MACRLC_DL_RD2_BLER_THRESHOLD, "Threshold of RD2/RETX2 BLER to decrease DL MCS", 0, dblptr:NULL, defdblval:0.01, TYPE_DOUBLE, 0}, \
{CONFIG_STRING_MACRLC_DL_MAX_MCS, "Maximum DL MCS that should be used", 0, u8ptr:NULL, defintval:28, TYPE_UINT8, 0}, \
}
#define MACRLC_CC_IDX 0
#define MACRLC_TRANSPORT_N_PREFERENCE_IDX 1
......@@ -111,5 +120,10 @@
#define MACRLC_PUCCHTARGETSNRX10_IDX 19
#define MACRLC_PUCCHFAILURETHRES_IDX 20
#define MACRLC_PUSCHFAILURETHRES_IDX 21
#define MACRLC_DL_BLER_TARGET_UPPER_IDX 22
#define MACRLC_DL_BLER_TARGET_LOWER_IDX 23
#define MACRLC_DL_RD2_BLER_THRESHOLD_IDX 24
#define MACRLC_DL_MAX_MCS_IDX 25
/*---------------------------------------------------------------------------------------------------------------------------------------------------------*/
#endif
openair2/GNB_APP/gnb_config.c
View file @ f091e67f
......@@ -755,6 +755,10 @@ void RCconfig_nr_macrlc() {
AssertFatal(1==0,"MACRLC %d: %s unknown southbound midhaul\n",j,*(MacRLC_ParamList.paramarray[j][MACRLC_TRANSPORT_S_PREFERENCE_IDX].strptr));
}
RC.nrmac[j]->ulsch_max_frame_inactivity = *(MacRLC_ParamList.paramarray[j][MACRLC_ULSCH_MAX_FRAME_INACTIVITY].uptr);
RC.nrmac[j]->dl_bler_target_upper = *(MacRLC_ParamList.paramarray[j][MACRLC_DL_BLER_TARGET_UPPER_IDX].dblptr);
RC.nrmac[j]->dl_bler_target_lower = *(MacRLC_ParamList.paramarray[j][MACRLC_DL_BLER_TARGET_LOWER_IDX].dblptr);
RC.nrmac[j]->dl_rd2_bler_threshold = *(MacRLC_ParamList.paramarray[j][MACRLC_DL_RD2_BLER_THRESHOLD_IDX].dblptr);
RC.nrmac[j]->dl_max_mcs = *(MacRLC_ParamList.paramarray[j][MACRLC_DL_MAX_MCS_IDX].u8ptr);
RC.nrmac[j]->num_ulprbbl = num_prbbl;
LOG_I(NR_MAC,"Blacklisted PRBS %d\n",num_prbbl);
memcpy(RC.nrmac[j]->ulprbbl,prbbl,275*sizeof(prbbl[0]));
......
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
View file @ f091e67f
......@@ -382,6 +382,74 @@ int nr_write_ce_dlsch_pdu(module_id_t module_idP,
return offset;
}
#define BLER_UPDATE_FRAME 10
#define BLER_FILTER 0.9f
int get_mcs_from_bler(module_id_t mod_id, int CC_id, frame_t frame, sub_frame_t slot, int UE_id)
{
gNB_MAC_INST *nrmac = RC.nrmac[mod_id];
const NR_ServingCellConfigCommon_t *scc = nrmac->common_channels[CC_id].ServingCellConfigCommon;
const int n = nr_slots_per_frame[*scc->ssbSubcarrierSpacing];
NR_DL_bler_stats_t *bler_stats = &nrmac->UE_info.UE_sched_ctrl[UE_id].dl_bler_stats;
/* first call: everything is zero. Initialize to sensible default */
if (bler_stats->last_frame_slot == 0 && bler_stats->mcs == 0) {
bler_stats->last_frame_slot = frame * n + slot;
bler_stats->mcs = 9;
bler_stats->bler = (nrmac->dl_bler_target_lower + nrmac->dl_bler_target_upper) / 2;
bler_stats->rd2_bler = nrmac->dl_rd2_bler_threshold;
}
const int now = frame * n + slot;
int diff = now - bler_stats->last_frame_slot;
if (diff < 0) // wrap around
diff += 1024 * n;
const uint8_t old_mcs = bler_stats->mcs;
const NR_mac_stats_t *stats = &nrmac->UE_info.mac_stats[UE_id];
// TODO put back this condition when relevant
/*const int dret3x = stats->dlsch_rounds[3] - bler_stats->dlsch_rounds[3];
if (dret3x > 0) {
if there is a third retransmission, decrease MCS for stabilization and
restart averaging window to stabilize transmission
bler_stats->last_frame_slot = now;
bler_stats->mcs = max(9, bler_stats->mcs - 1);
memcpy(bler_stats->dlsch_rounds, stats->dlsch_rounds, sizeof(stats->dlsch_rounds));
LOG_D(MAC, "%4d.%2d: %d retx in 3rd round, setting MCS to %d and restarting window\n", frame, slot, dret3x, bler_stats->mcs);
return bler_stats->mcs;
}*/
if (diff < BLER_UPDATE_FRAME * n)
return old_mcs; // no update
// last update is longer than x frames ago
const int dtx = stats->dlsch_rounds[0] - bler_stats->dlsch_rounds[0];
const int dretx = stats->dlsch_rounds[1] - bler_stats->dlsch_rounds[1];
const int dretx2 = stats->dlsch_rounds[2] - bler_stats->dlsch_rounds[2];
const float bler_window = dtx > 0 ? (float) dretx / dtx : bler_stats->bler;
const float rd2_bler_wnd = dtx > 0 ? (float) dretx2 / dtx : bler_stats->rd2_bler;
bler_stats->bler = BLER_FILTER * bler_stats->bler + (1 - BLER_FILTER) * bler_window;
bler_stats->rd2_bler = BLER_FILTER / 4 * bler_stats->rd2_bler + (1 - BLER_FILTER / 4) * rd2_bler_wnd;
int new_mcs = old_mcs;
// TODO put back this condition when relevant
/* first ensure that number of 2nd retx is below threshold. If this is the
* case, use 1st retx to adjust faster
if (bler_stats->rd2_bler > nrmac->dl_rd2_bler_threshold && old_mcs > 6) {
new_mcs -= 2;
} else if (bler_stats->rd2_bler < nrmac->dl_rd2_bler_threshold) {*/
if (bler_stats->bler < nrmac->dl_bler_target_lower && old_mcs < nrmac->dl_max_mcs && dtx > 9)
new_mcs += 1;
else if (bler_stats->bler > nrmac->dl_bler_target_upper && old_mcs > 6)
new_mcs -= 1;
// else we are within threshold boundaries
bler_stats->last_frame_slot = now;
bler_stats->mcs = new_mcs;
memcpy(bler_stats->dlsch_rounds, stats->dlsch_rounds, sizeof(stats->dlsch_rounds));
LOG_D(MAC, "%4d.%2d MCS %d -> %d (dtx %d, dretx %d, BLER wnd %.3f avg %.6f, dretx2 %d, RD2 BLER wnd %.3f avg %.6f)\n",
frame, slot, old_mcs, new_mcs, dtx, dretx, bler_window, bler_stats->bler, dretx2, rd2_bler_wnd, bler_stats->rd2_bler);
return new_mcs;
}
void nr_store_dlsch_buffer(module_id_t module_id,
frame_t frame,
sub_frame_t slot) {
......@@ -630,8 +698,8 @@ void pf_dl(module_id_t module_id,
continue;
/* Calculate coeff */
sched_pdsch->mcs = 9;
ps->nrOfLayers = 1;
sched_pdsch->mcs = get_mcs_from_bler(module_id, /* CC_id = */ 0, frame, slot, UE_id);
uint32_t tbs = pf_tbs[ps->mcsTableIdx][sched_pdsch->mcs];
coeff_ue[UE_id] = (float) tbs / thr_ue[UE_id];
LOG_D(NR_MAC,"b %d, thr_ue[%d] %f, tbs %d, coeff_ue[%d] %f\n",
......
openair2/LAYER2/NR_MAC_gNB/main.c
View file @ f091e67f
......@@ -81,22 +81,28 @@ void dump_mac_stats(gNB_MAC_INST *gNB, char *output, int strlen)
for (int UE_id = UE_info->list.head; UE_id >= 0; UE_id = UE_info->list.next[UE_id]) {
stroff+=sprintf(output+stroff,"UE ID %d RNTI %04x (%d/%d) PH %d dB PCMAX %d dBm\n",
const NR_UE_sched_ctrl_t *sched_ctrl = &UE_info->UE_sched_ctrl[UE_id];
NR_mac_stats_t *stats = &UE_info->mac_stats[UE_id];
const int avg_rsrp = stats->num_rsrp_meas > 0 ? stats->cumul_rsrp / stats->num_rsrp_meas : 0;
stroff+=sprintf(output+stroff,"UE ID %d RNTI %04x (%d/%d) PH %d dB PCMAX %d dBm, average RSRP %d (%d meas)\n",
UE_id,
UE_info->rnti[UE_id],
num++,
UE_info->num_UEs,
UE_info->UE_sched_ctrl[UE_id].ph,
UE_info->UE_sched_ctrl[UE_id].pcmax);
sched_ctrl->ph,
sched_ctrl->pcmax,
avg_rsrp,
stats->num_rsrp_meas);
NR_mac_stats_t *stats = &UE_info->mac_stats[UE_id];
const int avg_rsrp = stats->num_rsrp_meas > 0 ? stats->cumul_rsrp / stats->num_rsrp_meas : 0;
stroff+=sprintf(output+stroff,"UE %d: dlsch_rounds %d/%d/%d/%d, dlsch_errors %d, pucch0_DTX %d average RSRP %d (%d meas)\n",
stroff+=sprintf(output+stroff,"UE %d: dlsch_rounds %d/%d/%d/%d, dlsch_errors %d, pucch0_DTX %d, BLER %.5f MCS %d\n",
UE_id,
stats->dlsch_rounds[0], stats->dlsch_rounds[1],
stats->dlsch_rounds[2], stats->dlsch_rounds[3], stats->dlsch_errors,
stats->dlsch_rounds[2], stats->dlsch_rounds[3],
stats->dlsch_errors,
stats->pucch0_DTX,
avg_rsrp, stats->num_rsrp_meas);
sched_ctrl->dl_bler_stats.bler,
sched_ctrl->dl_bler_stats.mcs);
stats->num_rsrp_meas = 0;
stats->cumul_rsrp = 0 ;
stroff+=sprintf(output+stroff,"UE %d: dlsch_total_bytes %d\n", UE_id, stats->dlsch_total_bytes);
......
openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h
View file @ f091e67f
......@@ -422,6 +422,13 @@ typedef struct NR_UE_harq {
//! fixme : need to enhace for the multiple TB CQI report
typedef struct NR_DL_bler_stats {
frame_t last_frame_slot;
float bler;
float rd2_bler;
uint8_t mcs;
int dlsch_rounds[8];
} NR_DL_bler_stats_t;
//
/*! As per spec 38.214 section 5.2.1.4.2
......@@ -565,6 +572,9 @@ typedef struct {
/// per-LC status data
mac_rlc_status_resp_t rlc_status[MAX_NUM_LCID];
/// Estimation of HARQ from BLER
NR_DL_bler_stats_t dl_bler_stats;
int lcid_mask;
int lcid_to_schedule;
uint16_t ta_frame;
......@@ -763,6 +773,10 @@ typedef struct gNB_MAC_INST_s {
NR_Type0_PDCCH_CSS_config_t type0_PDCCH_CSS_config[64];
bool first_MIB;
double dl_bler_target_upper;
double dl_bler_target_lower;
double dl_rd2_bler_threshold;
uint8_t dl_max_mcs;
} gNB_MAC_INST;
#endif /*__LAYER2_NR_MAC_GNB_H__ */
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