Abstract: A method (400) for controlling calls to and from a mobile station reachable via a hybrid cellular telecommunication system, where said mobile station is the first endpoint of a call, is characterized in that a set of allowed location areas is defined (402). Further, the location area of another endpoint of the call is determined (407), and decision about connecting the call via the hybrid cellular telecommunication system is made (408) based at least on the location area of said other endpoint. Arrangements (600, 610) implementing the method are also presented.

Abstract: A method for determining a calibration value for a RF power control loop. The RF power control loop includes an error amplifier (30) having an output for outputting an indication (EAO) of a difference between an actual RF output power and a desired RF output power. The method includes steps of (a) commanding an RF output power; (b) measuring the output of the error amplifier; (c) comparing the measured output of the error amplifier to a reference value; and (d) iterating the steps of commanding, measuring and comparing. Generally, the reference value has a magnitude that is a function of an RF power amplifier gain control voltage. More particularly, the reference value has a magnitude that is less than a magnitude of the RF amplifier control voltage threshold level, above which the RF amplifier begins to output RF energy.

Abstract: In accordance with a method of this invention, and circuitry for performing the method, there is disclosed a process for operating a radio frequency (RF) signal power detector. The method includes the steps of (a) sampling the output of an RF detector circuit to obtain a measurement of a value of the output when no RF signal is input to the RF detector circuit; (b) storing the measurement; and (c) subtracting, when an RF signal is input to the RF detector circuit, the stored measurement from the output of the RF detector circuit to provide a subtracted output signal. In pulsed (e.g., TDMA) embodiments of this invention the step of sampling occurs between RF bursts, while in continuous wave (cw) embodiments the step of sampling occurs during a time that an RF connection is opened or otherwise blocked at an input of the RF detector circuit and a source of the RF signal.

Abstract: In accordance with a method of this invention, and circuitry for performing the method, there is disclosed a process for operating a radio frequency (RF) signal power detector. The method includes the steps of (a) sampling the output of an RF detector circuit to obtain a measurement of a value of the output when no RF signal is input to the RF detector circuit; (b) storing the measurement; and (c) subtracting, when an RF signal is input to the RF detector circuit, the stored measurement from the output of the RF detector circuit to provide a subtracted output signal. In pulsed (e.g., TDMA) embodiments of this invention the step of sampling occurs between RF bursts, while in continuous wave (cw) embodiments the step of sampling occurs during a time that an RF connection is opened or otherwise blocked at an input of the RF detector circuit and a source of the RF signal.

Abstract: In accordance with a method of this invention, and circuitry for performing the method, there is disclosed a process for operating a radio frequency (RF) signal power detector. The method includes the steps of (a) sampling the output of an RF detector circuit to obtain a measurement of a value of the output when no RF signal is input to the RF detector circuit; (b) storing the measurement; and (c) subtracting, when an RF signal is input to the RF detector circuit, the stored measurement from the output of the RF detector circuit to provide a subtracted output signal. In pulsed (e.g., TDMA) embodiments of this invention the step of sampling occurs between RF bursts, while in continuous wave (cw) embodiments the step of sampling occurs during a time that an RF connection is opened or otherwise blocked at an input of the RF detector circuit and a source of the RF signal.