Patent ID: 7580723

Claim:
A method of operating a device including a transmitter, the transmitter capable of operating in a first mode of operation and a second mode of operation, the first mode of operation and the second mode of operation including a closed loop control mode and an open loop control mode, the first mode of operation being different from the second mode of operation, the method comprising: operating the transmitter in the first mode of operation, wherein the first mode of operation comprises an open loop control mode of operation; reading back a transmitter output power characteristic during the first mode of operation, to control the second mode of operation, wherein the second mode of operation comprises a closed loop control mode of operation, further wherein the reading back the transmitter output power characteristic comprises measuring a transmitter output power; receiving a power control command to change the output power of the transmitter from a first output power to a second output power; correlating the read back transmitter output power characteristic during the first mode of operation to a transmitter output power characteristic of the second mode of operation, wherein the correlating comprises correlating the transmitter output power of the open loop control mode of operation to a closed loop control line value for the second output power characteristic of the closed loop control mode of operation; determining a desired output power of the second mode of operation based on the transmitter output power characteristic of the second mode of operation; comparing the transmitter output power characteristic of the second mode of operation to a threshold; and switching from the first mode of operation to the second mode of operation based on the transmitter output power characteristic of the second mode of operation where the comparing the transmitter output characteristic of the second mode of operation to the threshold meets a predefined criterion.