Automatic gain control for a wireless transmit/receive unit in a time slotted data transmissions

A receiver having an automatic gain control, said receiver for use in a time-slotted communications system, comprising:

• initializing means for initializing an automatic gain control loop;
• sampling means for sampling a received signal;
• estimating means for estimating the power of the received signal;
• comparison means for comparing the estimated power of the received signal with a reference power level;
• generating means for generating an error signal based upon the difference between the estimated power and the reference power level;
• accumulating means for accumulating the error signals generated by a plurality of received signals, said accumulating means storing an accumulated value;
• and
• lookup means for looking up the accumulated value in a table to locate a control word for an attenuator, said control word used to adjust the gain of said attenuator.

A receiver for use in a time-slotted communications system, comprising:

• an automatic gain control loop;
• an initializer for initializing said automatic gain control loop;
• a sampler for sampling a received signal;
• an estimator for estimating the power of the received signal;
• a comparator for comparing the estimated power of the received signal with a reference power level;
• a generator for generating an error signal based upon the difference between the estimated power and the reference power level;
• an accumulator for accumulating the error signals generated by a plurality of received signals, said accumulator storing an accumulated value;
• an attenuator;
• and
• a lookup device for looking up the accumulated value in a table to locate a control word for said attenuator, said control word used to adjust the gain of said attenuator.