System and method for nonlinear MU-MIMO downlink channel precoding with arbitrary precoder

摘要

Method and apparatus are provided for transmission of data. A precoder is selected, and a feedforward filter is derived in accordance with the precoder. In some embodiments, the precoder is an arbitrary effective precoder. Data prepared using the precoder and the feedforward filter can then be transmitted.

主权项

1. A method for data transmission, the method comprising:
selecting, by a transmitting device, a precoder, wherein the precoder is a linear precoder; deriving, by the transmitting device, a feedforward filter as a function of the precoder; preparing, by the transmitting device, transmission data in accordance with the precoder and the feedforward filter, wherein the preparing the transmission data comprises:
precoding a first set of data in accordance with the precoder; andadjusting a second set of data using the feedforward filter without feedback,
wherein the adjusting the second set of data comprises multiplying the second set of data with coefficients of the feedforward filter; and transmitting, by the transmitting device, the transmission data.