METHOD AND APPARATUS FOR TRANSMIT POWER CONTROL DURING A GROUP CALL TO A PLURALITY OF DEVICES

摘要

A transmitting device (100) transmits a signal on a forward channel (106) at a predetermined power level. Upon receipt of the signal, a receiving device (102), estimates a signal quality for the signal. If the signal quality is below a threshold, the receiving device transmits a power control message on at least a portion of a single reverse channel (104), wherein the power control message requests an increase in transmit power for subsequently received signals, and wherein the single reverse channel is shared by a plurality of receiving devices. The transmitting device adjusts the transmit power level based on observing the reverse channel.