Increase number of DC cell

Dears,

If i increase number of DC_HSDPA user in Alcatel is i will have affecting the other users or degradation in traffic.
As i know the each DC user will have double resource than the normal user.

please advice

DC_HSPDA user consumes one more CE than SC_HSPDA and DC_HSDPA user consumes a little bit more power in uplink for demodulation the both carriers.
So if you don’t have any problem in CE and power you can increase number of DC cells