Command Line Reference¶
The srsUE application runs in the console. When running, type t
in the console to enable the metrics trace.
4G LTE console trace:
---------Signal-----------|-----------------DL-----------------|-----------UL-----------
cc pci rsrp pl cfo | mcs snr iter brate bler ta_us | mcs buff brate bler
0 1 50 -50 -1.4u | 26 141 1.0 3.2M 0% 0.0 | 21 56 151k 0%
0 1 50 -50 -899n | 26 140 1.0 3.5M 0% 0.0 | 22 169 110k 0%
0 1 50 -50 -349n | 26 140 1.0 3.5M 0% 0.0 | 23 112 100k 0%
0 1 50 -50 -842n | 26 140 1.0 3.5M 0% 0.0 | 23 56 98k 0%
0 1 50 -50 -760n | 26 140 1.0 3.5M 0% 0.0 | 23 167 100k 0%
0 1 50 -50 -754n | 26 140 1.0 3.5M 0% 0.0 | 23 114 100k 0%
0 1 50 -50 106n | 26 140 1.0 3.1M 0% 0.0 | 23 169 88k 0%
5G NR console trace:
---------Signal-----------|-----------------DL-----------------|-----------UL-----------
rat pci rsrp pl cfo | mcs snr iter brate bler ta_us | mcs buff brate bler
lte 1 -11 11 -1.4u | 0 142 0.0 0.0 0% 0.0 | 0 0.0 0.0 0%
nr 500 1 0 23u | 27 70 1.0 8.5M 0% 0.0 | 28 36k 8.3M 0%
lte 1 -11 11 -1.4u | 0 142 0.0 0.0 0% 0.0 | 0 0.0 0.0 0%
nr 500 1 0 23u | 27 70 1.0 9.2M 0% 0.0 | 28 24k 8.1M 0%
lte 1 -11 11 -1.4u | 0 142 0.0 0.0 0% 0.0 | 0 0.0 0.0 0%
nr 500 2 0 23u | 27 69 1.0 4.6M 0% 0.0 | 28 19k 4.2M 0%
Metrics are generated once per second by default. This can be configured using the expert.metrics_period_secs parameter in ue.conf
.
Metrics are provided for the received signal (Signal), downlink (DL) and uplink (UL) respectively. The following metrics are provided:
- rat
Component carrier, will be either LTE or NR
- cc
Component carrier (LTE)
- pci
- rsrp
- pl
Pathloss (dB)
- cfo
- mcs
Modulation and coding scheme (0-28)
- snr
- iter
Average number of turbo decoder iterations
- brate
Bitrate (bits/sec)
- bler
Block error rate
- ta_us
Timing advance (uS)
- buff
Uplink buffer status - data waiting to be transmitted (bytes)