TECHNIQUE FOR FULL-DUPLEX TRANSMISSION IN MANY-ANTENNA MU-MIMO SYSTEMS

摘要

Technique for full-duplex transmission in many-antenna multi-user (MU) multiple- input multiple-output (MIMO) systems is presented in this disclosure. An estimate of a self- interference channel between a plurality of transmit antennas and a plurality of receive antennas is first obtained. A precoder for self-interference reduction is generated based on minimizing a self-interference power related to the self-interference channel that is present at the plurality of receive antennas. Transmission data are modified using the precoder by projecting the transmission data onto a defined number of singular vectors of the self- interference channel that correspond to the defined number of smallest singular values of the self-interference channel. Data are received in full-duplex mode via the plurality of receive antennas simultaneously with transmitting the modified transmission data.