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Print PUCCH SNR

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This commit is contained in:
Robert Schmidt
2026-03-25 09:03:49 +01:00
parent 73498ccae8
commit 22fdcd641a
2 changed files with 8 additions and 2 deletions
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doc/MAC/mac-usage.md
+3 -1
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@@ -81,7 +81,7 @@ Example:
UE RNTI 2460 CU-UE-ID 2 in-sync PH 28 dB PCMAX 24 dBm, average RSRP -74 (8 meas), average SINR 40.0 (32 meas)
UE 2460: CQI 15, RI 2, PMI (14,1)
UE 2460: UL-RI 2 TPMI 0
UE 2460: dlsch_rounds 32917/5113/1504/560, dlsch_errors 211, pucch0_DTX 1385, BLER 0.19557 MCS (1) 23 CCE fail 3
UE 2460: dlsch_rounds 32917/5113/1504/560, dlsch_errors 211, pucch0_DTX 1385 (SNR 19.8+0.2 dB), BLER 0.19557 MCS (1) 23 CCE fail 3
UE 2460: ulsch_rounds 3756/353/182/179, ulsch_errors 170, ulsch_DTX 285, BLER 0.33021 MCS (1) 27 (Qm 8 dB) NPRB 5 SNR 31.0 (-1.0) dB CCE fail 0
UE 2460: MAC: TX 1530943191 RX 194148 bytes
UE 2460: LCID 1: TX 651 RX 3031 bytes
@@ -139,6 +139,8 @@ The fourth and fifth line show HARQ-related information:
and ACK/NAK cannot be conveyed properly or DL DCIs are missed by the UE. This
is also something that should be very small compared to `A` in
`dlsch_rounds`.
* `(SNR x+y dB)`: PUCCH SNR where `x` is the average PUCCH SNR and `y` the
difference to the target (positive: above SNR, negative: below)
* `DLSCH BLER` is the current measured block-error rate of the DLSCH. Basically
a moving average of `B`/`A` in `dlsch_rounds`. This is something that should always
be close to the target bler that the MAC scheduler uses. typically 10-30% if
openair2/LAYER2/NR_MAC_gNB/main.c
+5 -1
View File
@@ -197,11 +197,15 @@ size_t dump_mac_stats(gNB_MAC_INST *gNB, char *output, size_t strlen, bool reset
for (int i = 1; i < gNB->dl_bler.harq_round_max; i++)
output = st_append(output, end, "/%"PRIu64, stats->dl.rounds[i]);
float pucch_snr = nr_mac_get_snr(&sched_ctrl->pucch_pc);
float pucch_snr_diff = (pucch_snr * 10.0f - sched_ctrl->pucch_pc.target_snrx10) / 10.0f;
output = st_append(output,
end,
", dlsch_errors %"PRIu64", pucch0_DTX %d, BLER %.5f MCS (%d) %d CCE fail %d\n",
", dlsch_errors %"PRIu64", pucch0_DTX %d (SNR %.1f%+.1f dB), BLER %.5f MCS (%d) %d CCE fail %d\n",
stats->dl.errors,
stats->pucch0_DTX,
pucch_snr,
pucch_snr_diff,
sched_ctrl->dl_bler_stats.bler,
UE->current_DL_BWP.mcsTableIdx,
sched_ctrl->dl_bler_stats.mcs,