Patent ID: 8229370

Claim:
A method for automatically adjusting signal output power and receiving sensitivity of a ZigBee wireless module, the method comprising: sending a signal with an output power from a transmitter comprising a ZigBee module to a receiver, the ZigBee module comprising a PA/LNA circuit including a power amplifier PA and a low noise amplifier LNA, the output power from the transmitter being adjustable between a minimum level and a maximum level; receiving a return message by the ZigBee module, the return message including a Link Quality Indicator (LQI) generated by the receiver, the LQI based on a signal strength of the signal at the receiver; if the LQI is not inclusively within a predetermined range between a maximum value and a minimum value, adjusting the output power for sending a next signal; and further adjusting the PA/LNA circuit of the ZigBee module for maintaining the LQI within the predetermined range if the output power from the transmitter has reached the minimum level or the maximum level.