Method for automatic transmission power control in a transceiver suitable for a CDMA environment employing direct sequence diffusion

Claim 1

In a method for automatic transmission power control wherein a setpoint signal is generated for automatic gain control of a receiver for receiving a radio signal from a transmitter, the improvement comprising: using the setpoint signal for one of amplitude and power control of the radio signal from the transmitter (TX); and determining the setpoint signal from a maximum value of a sum of squares of real and imaginary portions (I2, Q2) of time slots T n , T n+1 and T n+2 , wherein each of the time slots T n , Tn+ 1 and In+2 constitutes a search period for determining the maximum value, of an assembled baseband signal from the received radio signal; wherein the time slots are variable in accordance with a rate of variation of one of amplitude and power of the received radio signal.