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Add PUCCH power control T traces

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This commit is contained in:
Robert Schmidt
2026-02-24 18:44:27 +01:00
parent 28d770108f
commit c229d59efd
3 changed files with 28 additions and 0 deletions
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4
common/utils/T/T_messages.txt
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@@ -217,6 +217,10 @@ ID = GNB_MAC_PUSCH_POWER_CONTROL
DESC = NR MAC PUSCH power control-related data
GROUP = ALL:MAC:GNB:CSV
FORMAT = int,rnti : int,frame : int,slot : int,snrx10 : int,phr : int,tpc : int,tb_size : int,txpower_calc : int,rbSize : int,mcs : int,rssi
ID = GNB_MAC_PUCCH_POWER_CONTROL
DESC = NR MAC PUCCH power control-related data
GROUP = ALL:MAC:GNB:CSV
FORMAT = int,rnti : int,frame : int,slot : int,snrx10 : int,tpc : int,rssi
ID = GNB_MAC_DL_RAR_PDU_WITH_DATA
DESC = NR MAC downlink PDU for RAR
GROUP = ALL:MAC:GNB:WIRESHARK

16
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c
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@@ -936,6 +936,14 @@ void handle_nr_uci_pucch_0_1(module_id_t mod_id, frame_t frame, slot_t slot, con
} else
sched_ctrl->tpc1 = 1;
sched_ctrl->tpc1 = nr_limit_tpc(sched_ctrl->tpc1, uci_01->rssi, rssi_threshold);
T(T_GNB_MAC_PUCCH_POWER_CONTROL,
T_INT(uci_01->rnti),
T_INT(frame),
T_INT(slot),
T_INT(sched_ctrl->pucch_snrx10),
T_INT(sched_ctrl->tpc1),
T_INT(uci_01->rssi));
}
// check scheduling request result, confidence_level == 0 is good
@@ -971,6 +979,14 @@ void handle_nr_uci_pucch_2_3_4(module_id_t mod_id, frame_t frame, slot_t slot, c
sched_ctrl->pucch_snrx10 = uci_234->ul_cqi * 5 - 640;
sched_ctrl->tpc1 = nr_get_tpc(nrmac->radio_config.pucch.target_snrx10, uci_234->ul_cqi, 30, 0);
sched_ctrl->tpc1 = nr_limit_tpc(sched_ctrl->tpc1, uci_234->rssi, rssi_threshold);
T(T_GNB_MAC_PUCCH_POWER_CONTROL,
T_INT(uci_234->rnti),
T_INT(frame),
T_INT(slot),
T_INT(sched_ctrl->pucch_snrx10),
T_INT(sched_ctrl->tpc1),
T_INT(uci_234->rssi));
}
// TODO: handle SR

8
tools/plots/README.md
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@@ -55,6 +55,14 @@ a `&`. In that case, it's important to run the `nr-softmodem` at second
position, which will receive signals and stop the `csv` tracer when stopping
the main process.
The script might also be used to print PUCCH SNR. This can be achieved by only
recording the relevant fields with the `csv` tracer for trace
`GNB_MAC_PUCCH_POWER_CONTROL
./common/utils/T/tracer/record -d ../common/utils/T/T_messages.txt -OFF -on GNB_MAC_PUSCH_POWER_CONTROL -on GNB_MAC_PUCCH_POWER_CONTROL -o /tmp/record.raw
Use the `replay` tracer and `csv` to separate into PUSCH and PUCCH traces.
After recovering the `pusch.csv` file, you could plot it with a script.
./plot-power-control.gp.sh /tmp/pusch.csv