Wi-Fi Verbose logging fields
The Android source code is available online.
Your log line appears to be from:
WifiStateMachine.java specifically String getLogRecString(Message msg)
Around line 2196, the string output starts looking similar to yours:
sb.append(&quot; rssi=&quot;).append(mWifiInfo.getRssi());
sb.append(&quot; f=&quot;).append(mWifiInfo.getFrequency());
sb.append(&quot; sc=&quot;).append(mWifiInfo.score);
sb.append(&quot; link=&quot;).append(mWifiInfo.getLinkSpeed());
sb.append(String.format(&quot; tx=%.1f,&quot;, mWifiInfo.txSuccessRate));
sb.append(String.format(&quot; %.1f,&quot;, mWifiInfo.txRetriesRate));
sb.append(String.format(&quot; %.1f &quot;, mWifiInfo.txBadRate));
sb.append(String.format(&quot; rx=%.1f&quot;, mWifiInfo.rxSuccessRate));

The variables names appear reasonably descriptive for at least further research. The above file is dated 2017, given that there have been a number of WiFi changes made between OS version, I would find the one matching your version of OS, by looking for a &quot;base&quot; OS version branch (left hand side), and then drilling down to the appropriate WiFiStateMachine.java file:
https://android.googlesource.com/platform/frameworks/opt/net/wifi/
or searching for an appropriate string where you can find where logging is occurring.