Command Line ReferenceΒΆ

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

------DL------------------------------UL----------------------------------
rnti  cqi    ri   mcs  brate   bler   snr   phr   mcs  brate   bler    bsr
46   14.1   2.0  25.1  28.4M   0.8%  24.8   0.0  23.1  9.60M   2.2%   140k
46   14.8   2.0  26.6  30.7M     0%  24.9   0.0  23.2  9.92M     0%   140k
46   14.7   2.0  26.3  30.1M   0.8%  24.9   0.0  23.1  9.90M     0%   140k
46   14.8   2.0  26.5  30.6M     0%  24.9   0.0  23.1  9.90M     0%   140k
46   15.0   2.0  26.7  30.9M     0%  24.8   0.0  23.1  9.83M     0%   140k
46   14.5   2.0  26.1  30.0M     0%  24.9   0.0  23.1  9.88M     0%   140k
46   14.8   2.0  26.3  30.3M     0%  24.8   0.0  23.1  9.84M     0%   140k
46   14.7   2.0  26.4  30.4M     0%  24.9   0.0  23.1  9.89M     0%   140k
46   14.7   2.0  26.4  30.4M     0%  24.9   0.0  23.2  9.91M     0%   140k
46   14.7   2.0  26.3  30.4M     0%  24.9   0.0  23.1  9.87M     0%   140k
46   14.8   2.0  26.4  30.4M     0%  24.9   0.0  23.1  9.88M     0%   140k

Metrics are generated once per second by default. This can be configured using the expert.metrics_period_secs parameter in enb.conf.

Metrics are provided on a per-UE basis for the downlink (DL) and uplink (UL) respectively. The following metrics are provided:

rnti:Radio Network Temporary Identifier (UE identifier)
cqi:Channel Quality Indicator reported by the UE (1-15)
ri:Rank Indicator reported by the UE (dB)
mcs:Modulation and coding scheme (0-28)
brate:Bitrate (bits/sec)
bler:Block error rate
snr:Signal-to-Noise Ratio (dB)
phr:Power Headroom (dB)
bsr:Buffer Status Report - data waiting to be transmitted as reported by the UE (bytes)