hello
sure there is when the RTWP is higher then use of the higher SF in UL can't maintain the quality (for example SF4 compared with the SF32)
normally (in E*******) there is ROT (rise over thermal) and own cell interference thresholds which HSUPA user may not exceeds those thresholds over the RTWP . those have 2 impacts scheduling HSUPA users ( system will rotate the users scheduling ) and reducing the SF of HSUPA users
Please check the parameter which I mentioned here is the link you can read more about it
http://www.finetopix.com/attachment....3&d=1489459825
cheers
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