Patent ID: 9596013
Date: 2017-03-14
CPC Classifications: H04B,H04L

Claim:
1. A method for generating communications over a multiple-input multiple-output (MIMO) channel between a transmitter having a plurality of transmitter antennas and a receiver having a plurality of receiver antennas, the method comprising: obtaining one or more transmit power data indicative of a transmit power of a plurality of received MIMO signals; obtaining one or more noise variance data from the plurality of received MIMO signals received via the plurality of receiver antennas respectively, the noise variance data including at least one measure of noise associated with the plurality of received MIMO signals; obtaining one or more channel data associated with the MIMO channel; constraining two or more system performance parameters by constraining a first and a second signal-to-interference-plus-noise ratio (SINR) of two respective symbols to be contained in a plurality of transmit signals, wherein each of the two or more system performance parameters comprises the first and the second SINR of the two respective symbols; determining first and second precoder diagonal values based on the noise variance data, the transmit power data, the channel data, and the two or more constrained system performance parameters; and generating communications over the MIMO channel using a precoder matrix that includes the determined first and second precoder diagonal values.