At+qscan - rm520n-gl

I am running the AT+QSCAN command and I am trying to understand the values of srxlev and squal. What are the range of these values? What is good vs bad?

Is there any documentation for the AT+QSCAN command? I have the RM520N docs and it is not in there?

Is there a way I can get LAC from the output?

Dear @swwright
Here is the screenshot which describe the AT command, please refer to it.

Detailed information of the good and bad with the parameter, please refer to cell selection mechanism.