DSP Assisted and On Demand RF and Analog Domain Processing for Low Power Wireless Transceivers

摘要

A wireless user equipment (UE) device may include a receiver and transmitter. The UE device may dynamically vary the fidelity requirements imposed on the analog signal processing performed by the receiver and/or the transmitter in response factors such as: amount of signal interference (e.g., out-of-band signal power); modulation and coding scheme; number of spatial streams; extent of transmitter leakage; and size and/or frequency location of resources allocated to the UE device. Thus, the UE device may consume less power on average than a UE device that is designed to satisfy fixed fidelity requirements associated with a worst case reception scenario and/or a worst case transmission scenario.

主权项

1. A method for operating a wireless receiver, the method comprising:
receiving an RF signal; operating on the RF signal with one or more analog circuits to obtain an analog intermediate signal; sampling the analog intermediate signal using an analog-to-digital conversion (ADC) circuit to obtain a digital signal; analyzing the RF signal or the analog intermediate signal or the digital signal to determine a level of signal processing fidelity that the receiver should satisfy; modifying a configuration of the receiver based on the determined level of signal processing fidelity, wherein said modifying includes one or more of the following:
adjusting a level of analog processing fidelity of at least one of the one or more analog circuits;processing the digital signal using one or more digital circuits to correct analog domain distortions introduced by the one or more analog circuits.