Patent ID: 7801548

Claim:
A method of transmission power control for a wireless transmit receive unit (WTRU) that transmits data signals in a forward channel where the WTRU is configured to make forward channel power adjustments as a function of target metrics computed based on the data signals as received over the forward channel, the method comprising: receiving data signals from the WTRU on the forward channel; and computing target metrics for the WTRU's forward channel power adjustments based on the detection of predetermined error conditions in the signals received on the forward channel, wherein an initial target metric value is set and, after a preliminary period at the initial value, the target metric is changed by a step up or a step down amount at time intervals of a predetermined length, and the step up and step down amounts are set to a first relatively high transient state level and are reduced by a selected amount if a predetermined error condition has been detected in an immediately preceding time interval until the step up and step down amounts are reduced to a second relatively low steady state level.