Patent ID: 8989294
Filing Date: 2015-03-24
Classification: H04B,H04L

Abstract:
1. A method of improving transmission of a multiple-input multiple-output (MIMO) signal, the method comprising: assessing a quality of a channel using a first packet received by an intended receiver from a transmitter of the MIMO signal; generating channel corrected pilots based at least in part on one or more correction values for the channel, wherein the one or more correction values are computed based at least in part on antenna gain control and channel inversion and are fed back as inputs to the antenna gain control; and sending a second packet from the intended receiver to the transmitter, the second packet including feedback information for improving transmission of the MIMO signal by the transmitter, the feedback information derived from a first plurality of data streams previously transmitted substantially simultaneously, wherein the feedback information comprises channel information including a pilot error vector magnitude (EVM) computed from the channel corrected pilots and known clean pilots.