US 12,136,959 B2
Real-time radio self-calibration
Sivadeep Kalavakuru, Akron, OH (US); Fred Anderson, Lakeville, OH (US); Xiangxiang Fang, San Diego, CA (US); and Ardalan Alizadeh, Milpitas, CA (US)
Assigned to Cisco Technology, Inc.
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Mar. 28, 2023, as Appl. No. 18/191,553.
Prior Publication US 2024/0333404 A1, Oct. 3, 2024
Int. Cl. H04B 17/11 (2015.01); H04L 1/00 (2006.01); H04W 52/52 (2009.01)
CPC H04B 17/11 (2015.01) [H04L 1/0003 (2013.01); H04W 52/52 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
for one or more clients of a radio:
sampling a Transmission (TX) signal;
determining an achievable Error Vector Magnitude (EVM) for one or more frames based on the TX signal;
determining a link budget using a TX power and a supported Modulation and Coding Scheme (MCS);
adjusting a per packet TX power based on the achievable EVM and a TX retry rate;
adjusting a PA linearity of the radio based on the achievable EVM and the link budget; and
regrouping the client into a new MCS based on the link budget.