high value of attempts in UL, because usually the attempt, if it is failed, will be repeated automatically by the MS, several times.
Congestion of the UL radio resources –> more attempts in UL.
I think if you fix the congestion, the number of UL attempts will become more reasonnable. However, normally, you should see DL congestion rather than UL congestion. Because the DL channels are always more loaded than the UL channels, in “packet transfer” world.
Can you isolate the cause of the congestion ? Radio congestion ? Abis congestion ? GPU congestion ? Gb congestion ?