Is there a resource I could refer to to decode a fare basis code on Qatar Airways?

I have been trying to figure out what the following code means exactly: RJHQUXRE

So far from searching online, the only things I can find are R stands for the business class ticket, and RE likely means a return fare. Leaves JHQUX to be decoded.

I tried to recreate the flight on expertflyer and also tried searching for RJHQUXRE on expertflyer, however I can not get the same fare basis code to show up there for the same flights. So I don't know where to find the detailed fare rules for RJHQUXRE.