Complex sentence: The power consumption in the CELL_FACH is roughly 50 percent of that in CELL_DCH, and the PCH states use about 1-2 percent of the power consumption of the CELL_DCH state.
Split into simpler sentences: The power consumption in the CELL_FACH is roughly 50 percent of that in CELL_DCH. The PCH states use about 1-2 percent of CELL_DCH state.