Calibration of received signal strength indication

An apparatus for calibrating received signal strength indication within a radio frequency integrated circuit (RFIC), the apparatus comprises:

• processing module;
• and
• memory operably coupled to the processing module, wherein the memory includes operational instructions that cause the processing module to:
• concurrently enable a transmitter portion of the RFIC and a receiver portion of the RFIC;
• provide a zero input to the transmitter portion, wherein the transmitter portion up converts the zero input via a mixer section to produce a radio frequency (RF) signal;
• measure received signal strength of the RF signal as received by the receiver portion while the transmitter portion and receiver portion are concurrent enabled to produce a measured received signal strength;
• compare the measured received signal strength with a desired zero-input signal strength value;
• and
• when the measured received signal strength compares unfavorably to the desired zero-input signal strength value, scale a received signal strength to power level table based on a difference between the measured received signal strength and the desired zero-input signal strength value.

A radio frequency integrated circuit (RFIC) comprises:

• transmitter section operably coupled to convert outbound data into outbound radio frequency (RF) signals;
• receiver section operably coupled to convert inbound RF signals into inbound data;
• received signal strength indicator operably coupled to measure signal strength of the inbound RF signals to produce a measured signal strength;
• and
• calibration module operably coupled to calibrate the measured signal strength by:
• concurrently enabling the transmitter section and the receiver section;
• providing a zero input to the transmitter section, wherein the transmitter section up converts the zero input via a mixer section to produce the outbound RF signal;
• measuring received signal strength of the outbound RF signal as received by the receiver section while the transmitter section and receiver section are concurrent enabled to produce a measured received signal strength;
• comparing the measured received signal strength with a desired zero-input signal strength value;
• and
• when the measured received signal strength compares unfavorably to the desired zero-input signal strength value, scaling a received signal strength to power level table based on a difference between the measured received signal strength and the desired zero-input signal strength value.