This affects the 900MHz, 1800MHz and 2100MHz bands. Ofcom has also allowed an increase in power of 3dB in the 900MHz band to align it with power levels in the 800MHz band.
This is in-line with Ofcom's policy to liberalise licenses and make them technology neutral and will allow the MNOs to roll-out 4G (LTE) services on any of their spectrum without regulatory hinderance.