In a wireless communication system a method for power control in a mobile unit, wherein a variable size step is used to adjust the transmit power. The sense amplifier architecture includes a folded cascode amplifier for its first sense amplifier stage, and a pre-charge circuit to establish a pre-charge condition for a senseline and a reference senseline of the sense amplifier. Moreover, the receiver includes at least one receiving component that receives the plurality of packets to generate a plurality of decoded signals, a decoding component that decodes the first packet of encoded data transmitted to produce decoded data, and a selecting component that identifies the mechanisms for receiving additional encoded data. The main equalizer uses each re-encoded channel as an additional reference signal along with one or more pilot signals to equalize a time-delayed version of the received signal.