Patent ID: 9521579
Filing Date: 2016-12-13
CPC Classification: H04L,H04W

Claim Text:
1. A method for the selection of a particular Modulation and Coding Selection (MCS) from a plurality of available MCS in a wireless communications system, the method having the steps: obtaining a derived signal to noise ratio (SNR_d); establishing threshold values SNR_high, SNR_low; if SNR_d>SNR_high, selecting the highest MCS; if SNR_d<SNR_low, selecting the lowest MCS; if SNR_high>SNR_d>SNR_low, selecting MCS based on: obtaining a table of the product of f(MCS) and f_m corresponding to each MCS, where f(MCS) is an estimate of throughput in the absence of collisions or interference, and f_m is a correction factor for the effects of collisions or interference; selecting the MCS that maximizes said product of f(MCS) and f_m; said plurality of MCS including at least a modulation type and a coding rate; and where said method steps are repeated when a change in SNR_d of more than 2 dB since a previous transmission occurs.