Enhanced automatic gain control for full-duplex in millimeter wave systems

A method for wireless communication at a wireless device, comprising:

• receiving control signaling indicating a quantity of symbol periods to monitor for determining an estimated power of a wireless signal;
• performing a first analog to digital conversion of the wireless signal to determine the estimated power of the wireless signal during the quantity of symbol periods in accordance with the control signaling;
• attenuating the wireless signal by a factor to generate an attenuated wireless signal based at least in part on the estimated power satisfying a threshold;
• outputting, to a baseband processor of the wireless device, a value of the estimated power of the wireless signal based at least in part on attenuating the wireless signal;
• performing a second analog to digital conversion on the attenuated wireless signal to generate a sample of the attenuated wireless signal;
• amplifying the sample by the factor based at least in part on the estimated power satisfying the threshold;
• and
• outputting the sample.

An apparatus for wireless communication, comprising:

• a first analog to digital converter configured to perform a first analog to digital conversion of a wireless signal corresponding to a dynamic range to generate a first sample of the wireless signal;
• an attenuator configured to attenuate the wireless signal by a factor to generate an attenuated wireless signal;
• a second analog to digital converter configured to perform a second analog to digital conversion on the attenuated wireless signal corresponding to the dynamic range to generate a second sample of the attenuated wireless signal, wherein a dynamic range corresponding to the second analog to digital conversion is shifted relative to a dynamic range corresponding to the first analog to digital conversion;
• an amplifier configured to amplify the second sample by the factor;
• and
• a comparator configured to:
• perform a comparison between of the first sample of the wireless signal and the amplified second sample of the wireless signal to determine a greater one of the first sample of the wireless signal or the amplified second sample of the wireless signal;
• and
• output the greater one of the first sample or the amplified second sample.

An apparatus for wireless communication at a wireless device, comprising:

• a control signal receiving component configured to receive control signaling indicating a quantity of symbol periods to monitor for determining an estimated power of a wireless signal;
• a first analog to digital converter configured to perform a first analog to digital conversion of the estimated power of the wireless signal during the quantity of symbol periods in accordance with the control signaling;
• an attenuator configured to attenuate the wireless signal by a factor to generate an attenuated wireless signal based at least in part on the estimated power satisfying a threshold;
• a digital front end component configured to output, to a baseband processor of the wireless device, a value of the estimated power of the wireless signal based at least in part on attenuation of the wireless signal;
• a second analog to digital converter configured to perform a second analog to digital conversion on the attenuated wireless signal to generate a sample of the attenuated wireless signal;
• and
• an amplifier configured to amplify the sample by the factor based at least in part on the estimated power satisfying the threshold;
• wherein the digital front end component is further configured to:
• output the sample.