Command Line ReferenceΒΆ

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

Physical Cell Identifier

rsrp

Reference Signal Receive Power (dBm)

pl

Pathloss (dB)

cfo

Carrier Frequency Offset (Hz)

mcs

Modulation and coding scheme (0-28)

snr

Signal-to-Noise Ratio (dB)

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)