A method of open space calibration of an antenna array module (704, 706, 708) of a wireless communication device in a wireless communication network, the method comprising: displaying, on a display of the wireless communication device, an open space calibration instruction prompting a user to hold the wireless communication device without covering the antenna array module (704, 706, 708) and to ensure that no object is within a given distance of the wireless communication device in each of a plurality of directions from the wireless communication device during the open space calibration; configuring, by the wireless communication device, the antenna array module (704, 706, 708) as an antenna array module proximity sensor; transmitting a first proximity test signal from the antenna array module when the wireless communication device is held in accordance with the open calibration instruction; measuring a value of a first signal received at the antenna array module (704, 706, 708) in response to transmitting the first proximity test signal; and storing the value of the first signal as an open space calibration value of the antenna array module (704, 706, 708) transmitting a second proximity test signal from the antenna array module (704, 706, 708); measuring a second value of a second signal received at the antenna array module (704, 706, 708) in response to transmitting the second proximity test signal; and determining that an object is covering at least a portion of the antenna array module (704, 706, 708) or within a predefined distance from the antenna array module (704, 706, 708) when the second value of the second signal is different from the value of the first signal. displaying, on a display of the wireless communication device, an open space calibration instruction prompting a user to hold the wireless communication device without covering the antenna array module (704, 706, 708) and to ensure that no object is within a given distance of the wireless communication device in each of a plurality of directions from the wireless communication device during the open space calibration; configuring, by the wireless communication device, the antenna array module (704, 706, 708) as an antenna array module proximity sensor; transmitting a first proximity test signal from the antenna array module when the wireless communication device is held in accordance with the open calibration instruction; measuring a value of a first signal received at the antenna array module (704, 706, 708) in response to transmitting the first proximity test signal; and storing the value of the first signal as an open space calibration value of the antenna array module (704, 706, 708) transmitting a second proximity test signal from the antenna array module (704, 706, 708); measuring a second value of a second signal received at the antenna array module (704, 706, 708) in response to transmitting the second proximity test signal; and determining that an object is covering at least a portion of the antenna array module (704, 706, 708) or within a predefined distance from the antenna array module (704, 706, 708) when the second value of the second signal is different from the value of the first signal.