Abstract: Systems and methods are disclosed for compensating I-Q imbalance in a wireless receiver. The receiver may employ a quadrature downconverter configured to receive an RF signal input and output an in-phase component and a quadrature component at an IF, an IF rotation block configured to downconvert the in-phase and quadrature components to baseband and an I-Q correction block configured to compensate for an I-Q imbalance in the received signal, wherein the I-Q correction block is positioned downstream from the IF rotation block in the signal path. Performing the I-Q correction after conversion to baseband may allow the compensation calculations to operate at a reduced digital rate. Similarly, digitally adjusting the gain of the signal prior to I-Q compensation may reduce the number of bits that are manipulated during the compensation process. These features may represent significant efficiencies as compared to I-Q corrections performed at IF.

Abstract: Systems and methods are disclosed for compensating I-Q imbalance in a wireless receiver. The receiver may employ a quadrature downconverter configured to receive an RF signal input and output an in-phase component and a quadrature component at an IF, an IF rotation block configured to downconvert the in-phase and quadrature components to baseband and an I-Q correction block configured to compensate for an I-Q imbalance in the received signal, wherein the I-Q correction block is positioned downstream from the IF rotation block in the signal path. Performing the I-Q correction after conversion to baseband may allow the compensation calculations to operate at a reduced digital rate. Similarly, digitally adjusting the gain of the signal prior to I-Q compensation may reduce the number of bits that are manipulated during the compensation process. These features may represent significant efficiencies as compared to I-Q corrections performed at IF.

Abstract: An access terminal for processing a communication signal includes a receiver. The receiver is configured to determine a bias point for the communication signal based on a quality measurement of the communication signal, the quality measurement having a carrier-to-interference (C/I) estimate associated therewith. The receiver is further configured to determine a C/I cap for the communication signal using the C/I estimate, the C/I cap being configured to cap a signal to interference-plus-noise ratio (SINR) of the communication signal. In addition, the receiver is configured to process the communication signal using the determined bias point and the determined C/I cap. A method is also provided for processing a communication signal.

Abstract: An access terminal for processing a communication signal includes a receiver. The receiver is configured to determine a bias point for the communication signal based on a quality measurement of the communication signal, the quality measurement having a carrier-to-interference (C/I) estimate associated therewith. The receiver is further configured to determine a C/I cap for the communication signal using the C/I estimate, the C/I cap being configured to cap a signal to interference-plus-noise ratio (SINR) of the communication signal. In addition, the receiver is configured to process the communication signal using the determined bias point and the determined C/I cap. A method is also provided for processing a communication signal.