Ans 1:-band traffic percentage depends upon the 900 & 1800 trx configuration in your cell.
Ideally it should be near about same so that both the bands gets utilized to same %.
Ans 2:-More traffic psh to 1800…
Try changing “dual_band_offset” value more towards positive value.
If suppose your current
dual band offset is -ve value ex: value= -10 then change it to -2 or even 0.
By doing so, we are making 1800 cell more aggressive.
Also let me know what
“band preference mode” is set in that dual band cell.