Patent ID: 9253009
Filing Date: 2016-02-02
CPC Classification: H04B,H04L

Claim Text:
1. A method for processing data at a wireless station, comprising: obtaining samples related to a radio link utilized by a wireless station for communication, wherein the obtaining samples comprises estimating multiple-input multiple-output (MIMO) channel matrices for subcarriers; identifying one or more impairments from the obtained samples; identifying a maximum packet error probability; computing one or more parameters based at least in part on the obtained samples and the identified impairments, the parameters comprising one or more items selected from a multi-item list, the list including an in-phase and quadrature (I/Q) imbalance correction factor, an interference cancellation coefficient, a channel estimate truncation point, a constellation signal-to-noise ratio (SNR) metric and a multiple-input multiple-output (MIMO) channel rank metric comprising an average MIMO rank metric for the subcarriers for each packet, and wherein the computing comprises multiplying the respective MIMO channel matrices by their respective Hermitians to obtain respective intermediate square matrices, computing rank metrics for the subcarriers based on the intermediate square matrices, and averaging the computed rank metrics over the subcarriers to obtain the average MIMO rank metric; and adjusting the wireless station based on the one or more computed parameters including at least the MIMO channel rank metric, wherein adjusting the wireless station comprises using the MIMO channel rank metric and the maximum packet error probability to determine whether more than one spatial stream can be transmitted over the radio link.