Command Line Reference

The srsUE application runs in the console. When running, type t in the console to enable the metrics trace. Example metrics trace:

----Signal--------------DL-------------------------------------UL----------------------
cc  rsrp    pl    cfo   mcs   snr turbo  brate   bler   ta_us  mcs   buff  brate   bler
 0   -77    77   1.2k    24    33  0.84   5.8M     0%   0.0    18   193k   624k     0%
 0   -77    77   1.2k    24    31  0.80   5.7M     0%   0.0    18   193k   631k     0%
 0   -77    77   1.2k    24    32  0.80   5.8M     0%   0.0    18   192k   633k     0%
 0   -77    77   1.2k    25    34  0.93   6.0M     0%   0.0    18   194k   636k     0%
 0   -77    77   1.2k    24    33  0.83   5.8M     0%   0.0    19   193k   632k     0%
 0   -77    77   1.2k    24    31  0.82   5.8M     0%   0.0    18   194k   632k     0%
 0   -77    77   1.2k    24    32  0.82   5.8M     0%   0.0    18   193k   635k     0%
 0   -77    77   1.2k    25    34  0.91   6.0M     0%   0.0    18   194k   629k     0%
 0   -77    77   1.2k    24    33  0.85   5.8M     0%   0.0    19   193k   634k     0%
 0   -77    77   1.2k    24    31  0.82   5.7M     0%   0.0    19   194k   647k     0%
 0   -77    77   1.2k    24    32  0.84   5.8M     0%   0.0    18   192k   629k     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:

cc

Component carrier

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)

turbo

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)