Patent ID: 7454189
Filing Date: 2008-11-18
Classification: H04B

Abstract:
1. A method for calibrating received signal strength indication within a radio frequency integrated circuit (RFIC), the method comprises: concurrently enabling a transmitter portion of the RFIC and a receiver portion of the RFIC; providing 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; measuring 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; 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.