Receiver noise estimation

A method of noise estimation in a communication device comprising:

• calculating a cross product of a received Pilot signal to generate a demodulated Pilot signal;
• determining an energy of the demodulated Pilot signal;
• and
• accumulating the energy over a frame to produce a received noise estimate.

A method of noise estimation in a communication device comprising:

• calculating a cross product of a received Pilot signal in a plurality of fingers of a rake receiver to generate a demodulated Pilot signal in each of the plurality of fingers;
• time aligning the demodulated signals from each of the plurality of fingers in a corresponding plurality of deskew buffers;
• and
• summing the time aligned demodulated signals from the plurality of deskew buffers to generate a composite demodulated signal.

A noise estimator in a communication device comprising:

• means for calculating a cross product of a received Pilot signal to generate a demodulated Pilot signal;
• means for determining an energy of the demodulated Pilot signal;
• and
• means for accumulating the determined energy over a frame to produce a received noise estimate.

A noise estimator in a communication device comprising:

• means for calculating a cross product of a received Pilot signal in a plurality of fingers of a rake receiver to generate a demodulated Pilot signal in each of the plurality of fingers;
• means for time aligning the demodulated signals from each of the plurality of fingers in a corresponding plurality of deskew buffers;
• and
• means for summing the time aligned demodulated signals from the plurality of deskew buffers to generate a composite demodulated signal.

A device for noise estimation in a communication device comprising:

• a receiver adapted to demodulate a received signal using an empty Walsh code;
• a noise calculator coupled to the receiver adapted to generate an output comprising a noise estimate that is based in part on the demodulated received signal;
• and
• an accumulator adapted to sum the output of the noise calculator over a predetermined period.